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Pre-existing CD95-based Temra immunity in patients with recurrent/metastatic nasopharyngeal carcinoma predicts response and hyperprogression to dual PD-L1 and TGFβ inhibition 复发/转移性鼻咽癌患者先前存在的基于cd95的Temra免疫可预测PD-L1和tgf - β双重抑制的反应和超进展。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-20 DOI: 10.1002/ctm2.70535
Ngar Woon Kam, Jeffrey Yan Ho Lau, Cho Yiu Lau, Tai Chung Lam, Kenneth Sik Kwan Chan, Wei Dai, Victor Lee Ho Fun, Chi Leung Chiang, Dora Lai Wan Kwong

None.

没有。
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引用次数: 0
Corrigendum to “m6A hypomethylation of DNMT3B regulated by ALKBH5 promotes intervertebral disc degeneration via E4F1 deficiency” “ALKBH5调节的DNMT3B的m6A低甲基化通过E4F1缺乏促进椎间盘退变”的更正。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-20 DOI: 10.1002/ctm2.70528

Cao Yang

Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Li G, Luo R, Zhang W, et al. m6A hypomethylation of DNMT3B regulated by ALKBH5 promotes intervertebral disc degeneration via E4F1 deficiency. Clinical and Translational Medicine. 2022;12.

In this article, the image in the upper panel of ALKBH5 in Figure 1I was misused. The updated Figure 1 is provided.

FIGURE 1 Original version

FIGURE 1 New version

We apologize for this error.

李光,罗锐,张伟,等。ALKBH5调控DNMT3B m6A低甲基化通过E4F1缺乏促进椎间盘退变。12.临床与转化医学。2022;在本文中,图1I中ALKBH5上面板中的图像被误用了。提供了更新后的图1。图1原始版本图1新版本我们为这个错误道歉
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引用次数: 0
Organoid-based two-step drug screening for rapid identification of chemotherapy-resistant oesophageal squamous cell carcinoma and alternative therapies 基于类器官的两步药物筛选快速识别化疗耐药食管鳞状细胞癌和替代疗法。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-20 DOI: 10.1002/ctm2.70534
Chen-Ye Shao, Sheng Ju, Xin Tong, Kang Hu, Yu Li, Yi-xian Zhu, Jian Yang, Chang Li, Yu-feng Xie, Yuan Cui, Wei-jun Deng, Cheng Ding, Song-bing Qin, Jun Zhao

Background

Despite guideline-directed therapies, most patients with advanced oesophageal squamous cell carcinoma (ESCC) derive limited benefit and are unable to tolerate iterative treatment modifications. Therefore, timely identification of resistant cases and the provision of alternative therapeutic options are urgently needed.

Methods

A large-scale patient-derived organoid model was established from locally advanced patients with ESCC who underwent perioperative chemotherapy and was validated for consistency with the parental tumours through histopathological, genomic and transcriptomic analysis. A novel two-step drug screening method based on growth rate inhibition (GR) was developed, and drug sensitivity results were compared with clinical outcomes. Additionally, in vivo assays were conducted to evaluate alternative therapies using the Cmax/GR100 index.

Results

ESCC organoids demonstrated high consistency with parental tumours in histopathology, genomics and transcriptomics. The two-step drug screening method revealed a strong correlation with clinical responses (sensitivity 80%, specificity 85.7%, overall accuracy 83.3%) and significantly shortened the experimental timeline compared with the traditional drug screening method (23.08 ± 2.42 days vs. 45.75 ± 7.19 days, p < .001). Furthermore, we proposed a novel drug selection strategy based on Cmax/GR100 values, which provides a theoretical foundation for drug repurposing and offers alternative treatment options for patients resistant to TP (taxol + cisplatin) therapy, thereby facilitating precise re-treatment in drug-resistant subgroups.

Conclusions

This method exhibits strong clinical applicability, supporting more accurate and timely decision-making in ESCC management. The Cmax/GR100-based drug screening strategy can dynamically identify alternative sensitive drugs for patients who fail first-line therapies, enabling precise re-treatment. This approach provides a valuable tool for translating laboratory findings into clinical practice.

背景:尽管有指导治疗,大多数晚期食管鳞状细胞癌(ESCC)患者获益有限,并且无法忍受反复的治疗修改。因此,迫切需要及时发现耐药病例并提供替代治疗方案。方法:以接受围手术期化疗的局部晚期ESCC患者为样本,建立大规模患者源性类器官模型,并通过组织病理学、基因组学和转录组学分析验证其与亲代肿瘤的一致性。建立了一种基于生长速率抑制(GR)的两步药物筛选方法,并将药敏结果与临床结果进行比较。此外,使用Cmax/GR100指数进行体内试验来评估替代疗法。结果:ESCC类器官在组织病理学、基因组学和转录组学上与亲代肿瘤高度一致。两步药物筛选方法与临床反应相关性强(敏感性80%,特异性85.7%,总体准确性83.3%),与传统药物筛选方法相比,实验时间明显缩短(23.08±2.42天vs 45.75±7.19天,p max/GR100值),为药物重新利用提供了理论基础,为TP(紫杉醇+顺铂)治疗耐药患者提供了替代治疗选择。从而促进耐药亚群的精确再治疗。结论:该方法具有较强的临床适用性,可为ESCC的管理提供更准确、及时的决策支持。基于Cmax/ gr100的药物筛选策略可以动态识别一线治疗失败患者的替代敏感药物,实现精准再治疗。这种方法为将实验室发现转化为临床实践提供了有价值的工具。
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引用次数: 0
USP20 competitively binds to STUB1 to enhance CTSL expression and promote epithelial-mesenchymal transition in head and neck squamous cell carcinoma 在头颈部鳞状细胞癌中,USP20与STUB1竞争性结合,增强CTSL表达,促进上皮-间质转化。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-19 DOI: 10.1002/ctm2.70520
Lunhua Guo, Baihui Zhang, Xiaoqiao Cui, Xueying Wang, Jiaqing Xiao, Susheng Miao, Kaibin Song, Ji Sun
<div> <section> <h3> Rationale</h3> <p>Metastatic head and neck squamous cell carcinoma (mHNSCC) poses a significant threat to patient survival. Previous studies have identified cathepsin L (CTSL) as a key driver of tumourigenesis, metastasis and chemoresistance. However, the regulatory mechanisms underlying CTSL expression remain poorly understood.</p> </section> <section> <h3> Methods</h3> <p>A specific deubiquitinase responsible for CTSL expression was identified through treatment with broad-spectrum deubiquitinase inhibitors and mass spectrometry analysis. The colocalization of CTSL and USP20 in the cytoplasm was examined using confocal microscopy. The effects of CTSL or USP20 depletion on tumour biological behaviour were evaluated through various in vitro and in vivo assays.</p> </section> <section> <h3> Results</h3> <p>We identified USP20 as a specific deubiquitinase of CTSL. USP20 mediates the deubiquitination and stabilization of CTSL, thereby promoting epithelial-to-mesenchymal transition and cancer stem cell renewal, ultimately enhancing metastatic potential and chemoresistance. Notably, USP20 competes with STUB1 for CTSL binding, further driving the malignant phenotype of HNSCC. Analysis of clinical samples revealed that both CTSL and USP20 are highly expressed in metastatic HNSCC tissues, with a positive correlation between their expression levels.</p> </section> <section> <h3> Conclusions</h3> <p>Our study reveals a novel mechanism in which USP20 competitively interacts with STUB1 to stabilize CTSL and promote tumour progression. These findings provide preclinical evidence supporting USP20 as a potential therapeutic target for overcoming metastasis and chemotherapy resistance in HNSCC.</p> </section> <section> <h3> Key points</h3> <div> <ul> <li> <p>USP20 deubiquitinates and stabilizes CTSL.</p> </li> <li> <p>STUB1 promotes CTSL ubiquitination and degradation.</p> </li> <li> <p>USP20 competitively binds to CTSL in competition with STUB1.</p> </li> <li> <p>Targeting USP20 sensitizes cancer cells to cisplatin or paclitaxel.</p> </li> </ul> </
理由:转移性头颈部鳞状细胞癌(mHNSCC)对患者的生存构成重大威胁。先前的研究已经确定组织蛋白酶L (CTSL)是肿瘤发生、转移和化疗耐药的关键驱动因素。然而,CTSL表达的调控机制仍然知之甚少。方法:通过广谱去泛素酶抑制剂和质谱分析,鉴定出与CTSL表达有关的特异性去泛素酶。用共聚焦显微镜观察CTSL和USP20在细胞质中的共定位。通过各种体外和体内实验评估CTSL或USP20消耗对肿瘤生物学行为的影响。结果:我们鉴定出USP20是CTSL特异性去泛素酶。USP20介导CTSL的去泛素化和稳定化,从而促进上皮细胞向间质细胞的转化和癌症干细胞的更新,最终增强转移潜能和化疗耐药。值得注意的是,USP20与STUB1竞争CTSL结合,进一步驱动HNSCC的恶性表型。临床样本分析显示,CTSL和USP20在转移性HNSCC组织中均高表达,且两者表达水平呈正相关。结论:我们的研究揭示了USP20与STUB1竞争性相互作用以稳定CTSL并促进肿瘤进展的新机制。这些发现提供了临床前证据,支持USP20作为克服HNSCC转移和化疗耐药的潜在治疗靶点。重点:USP20去泛素化并稳定CTSL。STUB1促进CTSL泛素化和降解。USP20与STUB1竞争性结合CTSL。靶向USP20使癌细胞对顺铂或紫杉醇敏感。
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引用次数: 0
Single-cell transcriptomics reveal circulating skin-homing CLA+ CTSW+ cytotoxic CD4+ T cells contribute to relapse of psoriasis 单细胞转录组学揭示循环皮肤归巢CLA+ CTSW+细胞毒性CD4+ T细胞有助于银屑病复发。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-17 DOI: 10.1002/ctm2.70518
Hsien-Yi Chiu, Ka Kei Chan, Jing-Rong Wang, Hung-Ting Liao, Hsien-Neng Huang, Tai-Ming Ko
<p>Dear Editor,</p><p>Our single-cell RNA sequencing (scRNA-seq) profiling delineates the immune landscape that drives the relapse of psoriasis from remission following biological treatment. Psoriasis, an immune-mediated disease, exhibits episodes of quiescence and flares of disease. Although biologic treatments have enabled remission of psoriasis, relapses following treatment cessation remain common, unpredictable and poorly understood.<span><sup>1</sup></span></p><p>To investigate the role of circulating immune cells in relapse of psoriasis, we used scRNA-seq to profile CD45<sup>+</sup> peripheral blood mononuclear cells (PBMC) from patients with psoriasis vulgaris who experienced early or late relapse after achieving remission and subsequent withdrawal from biologics (Figure 1A, Figure S1, Table S1 and Supplementary Methods). We identified and annotated six major immune cell populations in PBMCs (Figure 1B–D; Figures S2 and S3, Table S2). Differentially expressed gene(s) (DEG) analysis of skin-homing (CD4<sup>+</sup> CLA (<i>SELPLG</i>)<sup>+</sup>) T cells from early relapsers displayed higher expressions of transcripts linked to proinflammatory responses and T cell activation, while those from late relapsers showed increased transcripts known to restrain inflammatory responses (Figure 1E–G, Figure S4 and Tables S3 and S4). Leucocyte adhesion, response to stimuli, Th17 differentiation, Th17 immune responses, T cell activation and cytokine production pathways were enriched in early relapsers (Figure 1H,I).</p><p>Given the pathogenic role of CD4⁺ T cells in psoriasis<span><sup>1</sup></span> and to identify drivers of psoriasis relapse, we intersected DEG in CD4<sup>+</sup> T with loci implicated in psoriasis by genome-wide association studies,<span><sup>2</sup></span> which showed Cathepsin W (<i>CTSW)</i> as the critical DEG (Figure 2A). CTSW is a cysteine protease from the papain family.<span><sup>3</sup></span> The functions of most cathepsins are associated with antigen processing, lysosomal protein breakdown and enhanced inflammation.<span><sup>3</sup></span> Skin-homing T cells from early relapsers displayed a higher expression of <i>CTSW</i> (Figure 2B and Table S5) and higher proportions of CTSW<sup>+</sup> cells compared to late relapsers (Figure 2C,D). Immunohistochemical staining revealed increased CTSW expression in T cells infiltrating psoriatic lesions of early relapsers (Figure 2E,F). However, CTSW expression was not associated with age, sex, baseline or post-treatment psoriasis severity, or treatment modality (Table S6). Sensitivity analysis also demonstrated higher CTSW expression and a greater proportion of CTSW⁺ cells in early relapsers, consistent with the primary analysis (Figures S5 and S6).</p><p>The low expression of Th17-associated transcripts in the CD4⁺ CTSW⁺ T subset suggests that CTSW⁺ T cells represent a distinct T cell subset rather than Th17 cells (Figure 2G). Thus, we next compared the expression profiles of th
我们的单细胞RNA测序(scRNA-seq)分析描绘了驱动银屑病从生物治疗后缓解复发的免疫景观。牛皮癣是一种免疫介导的疾病,表现为疾病的静止和发作。虽然生物治疗使银屑病得以缓解,但停止治疗后的复发仍然很常见,不可预测且知之甚少。为了研究循环免疫细胞在银屑病复发中的作用,我们使用scRNA-seq分析寻常型银屑病患者的CD45+外周血单个核细胞(PBMC),这些患者在获得缓解并随后停用生物制剂后经历了早期或晚期复发(图1A,图S1,表S1和补充方法)。我们鉴定并注释了PBMCs中的6个主要免疫细胞群(图1B-D;图S2和S3,表S2)。来自早期复发患者的皮肤归巢(CD4+ CLA (SELPLG)+) T细胞的差异表达基因(DEG)分析显示,与促炎反应和T细胞活化相关的转录本表达较高,而来自晚期复发患者的皮肤归巢(CD4+ CLA (SELPLG)+)显示,已知抑制炎症反应的转录本增加(图1E-G,图S4和表S3和S4)。白细胞粘附、刺激反应、Th17分化、Th17免疫反应、T细胞活化和细胞因子产生途径在早期复发患者中富集(图1H,I)。考虑到CD4+ T细胞在银屑病中的致病作用1和确定银屑病复发的驱动因素,我们通过全基因组关联研究2将CD4+ T中的DEG与银屑病相关的位点交叉,结果显示组织蛋白酶W (CTSW)是关键的DEG(图2A)。CTSW是一种来自木瓜蛋白酶家族的半胱氨酸蛋白酶大多数组织蛋白酶的功能与抗原加工、溶酶体蛋白分解和炎症增强有关与晚期复发患者相比,早期复发患者的皮肤归巢T细胞表达更高的CTSW(图2B和表S5), CTSW+细胞的比例更高(图2C,D)。免疫组化染色显示,早期复发银屑病病变浸润的T细胞中CTSW表达升高(图2E,F)。然而,CTSW表达与年龄、性别、基线或治疗后牛皮癣严重程度或治疗方式无关(表S6)。敏感性分析也表明,CTSW在早期复发患者中表达更高,CTSW +细胞的比例更大,与初步分析一致(图S5和S6)。CD4 + CTSW + T亚群中Th17相关转录物的低表达表明CTSW + T细胞代表一个不同的T细胞亚群,而不是Th17细胞(图2G)。因此,我们接下来比较了CD4+ CTSW+ T细胞亚群和CD4+ CTSW−T细胞亚群的表达谱(图3A;表S7和S8)。CD4+ CTSW+ T细胞富集与促炎反应相关的转录本,而CD4+ CTSW−T细胞富集已知负调节炎症反应的转录本(图3B,C)。与CD4+ CTSW - T细胞相比,CD4+ CTSW+ T细胞显示出与趋化性、白细胞粘附、细胞对刺激的反应、细胞毒性T细胞和免疫记忆相关的途径显著富集(图3D)。值得注意的是,CD4+ CTSW+ T细胞表达细胞毒性相关基因,尽管其表达水平低于CD8 + T细胞(图3E),并且表现出与中枢记忆T细胞(TCM)和效应记忆T细胞(TEM)相关的转录本的混合表达(图3F)。细胞间通信分析显示,早期复发患者的pbmc显示与炎症和Th17反应相关的通信通路富集,而晚期复发患者的pbmc显示与抗炎反应相关的通路富集(图4A和表S9)。与晚期复发患者相比,早期复发患者分离的CD4+ CTSW+ T细胞与CD4+ Th17细胞和TCM的相互作用强度更强(图4B)。值得注意的是,MIF信号在早期复发患者的CD4+ CTSW+ T细胞和Th17细胞之间的相互作用中富集,但在晚期复发患者中不存在(图4C,D)。MIF诱导IL-17A的产生和分泌,促进Th17细胞的分化,而Th17细胞是银屑病炎症的主要原因1在晚期复发患者中,SIRPG/CD47信号通路是CD4+ CTSW+ T细胞与Th17细胞相互作用的主要途径,而通过SIRPG/CD47信号通路的相互作用在早期复发患者中不存在(图4C)。在晚期复发患者的CD4+ CTSW+ T细胞中,SIRPG转录物的表达也高于早期复发患者(图4E)。SIRPG和CD47都被认为是细胞毒性T细胞反应的负调节因子。此外,与晚期复发患者相比,早期复发患者的CD4+ CTSW+ T细胞表现出更多的通讯(图S7A),并且与单核细胞的相互作用强度更强(图4B)。 来自早期复发患者的单核细胞显示出与炎症单核细胞、炎症反应、T细胞活化、Th17免疫反应、募集、粘附和炎症细胞浸润相关的转录物的更高表达(图S7B、C;图S8和表S10)。相反,晚期复发患者的单核细胞表达与抗炎活性和单核细胞运动抑制相关的高水平转录本(图S7B,C;图S8和表S11)。通路分析显示,早期复发的单核细胞对IL-1、炎症反应、IL-23通路、对细胞外刺激和应激的反应、趋化性和对IFN-γ通路的反应富集(图S9A,B)。CellChat分析显示,前列腺素E2 (PGE2)/PTGSE3/PTGER2 (EP2)信号通路在CD4+ CTSW+ T细胞与早期复发的单核细胞之间的相互作用中显著富集(图S9C)。PGE2/EP2信号在il -23驱动的致病性Th17细胞的产生和银屑病的发展中起关键作用与晚期复发患者相比,早期复发患者的单核细胞明显表达更高水平的PTGER2转录本(图S9D)。值得注意的是,SIRPG/CD47信号通路在晚期复发患者的CD4+ CTSW+ T细胞和单核细胞之间优先富集,而在早期复发患者中则不富集(图S9C)。本研究的局限性包括缺乏CTSW的功能测定,按药物类别分层,以及与TNF-α-治疗、生物前和健康队列的比较。由于仅包括牛皮癣患者,CTSW是否在其他炎症性皮肤病中标记皮肤归巢的细胞毒性T细胞值得进一步研究。总之,我们发现了一种新的循环皮肤归巢CD4 + T细胞亚群,CLA + CTSW + T细胞,可以通过持续循环,表现出细胞毒性,并通过MIF和PGE2/EP2信号参与致病免疫细胞,促进促炎,th17倾斜的环境,从而驱动牛皮癣复发(图S10)。这些结果为预防银屑病复发提供了潜在的靶点。赵显仪、陈嘉琪、王景荣、赖鸿庭、黄显能、柯大明对研究设计有贡献。赵显义、陈嘉琪、王景荣、柯大明收集研究资料。所有作者都对数据分析或解释做出了贡献,审查并严格修改了手稿,提供了即将出版的版本的最终批准,并同意对准确性和完整性负责。作者声明无利益冲突。​NSTC-112-2314-B-A49-039, NSTC-113-2314-B-A49-032-MY3 - Ko taiming),国立台湾大学医院新竹分院(114-HCH001, HR-114-H01, 114-HCH034 - chixianyi),国立卫生研究院(NHRI-EX113-11140SI - Ko taiming),国立阳明交通大学智能药物系统与智能生物设备研究中心(IDS2B)。资助人没有参与研究设计、数据收集和分析、发表决定或手稿准备。获得台湾大学附属医院新竹分院伦理审查委员会(108-009-F)批准。与本文相关的数据和原始贡献可在支持信息中获得。
{"title":"Single-cell transcriptomics reveal circulating skin-homing CLA+ CTSW+ cytotoxic CD4+ T cells contribute to relapse of psoriasis","authors":"Hsien-Yi Chiu,&nbsp;Ka Kei Chan,&nbsp;Jing-Rong Wang,&nbsp;Hung-Ting Liao,&nbsp;Hsien-Neng Huang,&nbsp;Tai-Ming Ko","doi":"10.1002/ctm2.70518","DOIUrl":"10.1002/ctm2.70518","url":null,"abstract":"&lt;p&gt;Dear Editor,&lt;/p&gt;&lt;p&gt;Our single-cell RNA sequencing (scRNA-seq) profiling delineates the immune landscape that drives the relapse of psoriasis from remission following biological treatment. Psoriasis, an immune-mediated disease, exhibits episodes of quiescence and flares of disease. Although biologic treatments have enabled remission of psoriasis, relapses following treatment cessation remain common, unpredictable and poorly understood.&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;To investigate the role of circulating immune cells in relapse of psoriasis, we used scRNA-seq to profile CD45&lt;sup&gt;+&lt;/sup&gt; peripheral blood mononuclear cells (PBMC) from patients with psoriasis vulgaris who experienced early or late relapse after achieving remission and subsequent withdrawal from biologics (Figure 1A, Figure S1, Table S1 and Supplementary Methods). We identified and annotated six major immune cell populations in PBMCs (Figure 1B–D; Figures S2 and S3, Table S2). Differentially expressed gene(s) (DEG) analysis of skin-homing (CD4&lt;sup&gt;+&lt;/sup&gt; CLA (&lt;i&gt;SELPLG&lt;/i&gt;)&lt;sup&gt;+&lt;/sup&gt;) T cells from early relapsers displayed higher expressions of transcripts linked to proinflammatory responses and T cell activation, while those from late relapsers showed increased transcripts known to restrain inflammatory responses (Figure 1E–G, Figure S4 and Tables S3 and S4). Leucocyte adhesion, response to stimuli, Th17 differentiation, Th17 immune responses, T cell activation and cytokine production pathways were enriched in early relapsers (Figure 1H,I).&lt;/p&gt;&lt;p&gt;Given the pathogenic role of CD4⁺ T cells in psoriasis&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; and to identify drivers of psoriasis relapse, we intersected DEG in CD4&lt;sup&gt;+&lt;/sup&gt; T with loci implicated in psoriasis by genome-wide association studies,&lt;span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt; which showed Cathepsin W (&lt;i&gt;CTSW)&lt;/i&gt; as the critical DEG (Figure 2A). CTSW is a cysteine protease from the papain family.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; The functions of most cathepsins are associated with antigen processing, lysosomal protein breakdown and enhanced inflammation.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; Skin-homing T cells from early relapsers displayed a higher expression of &lt;i&gt;CTSW&lt;/i&gt; (Figure 2B and Table S5) and higher proportions of CTSW&lt;sup&gt;+&lt;/sup&gt; cells compared to late relapsers (Figure 2C,D). Immunohistochemical staining revealed increased CTSW expression in T cells infiltrating psoriatic lesions of early relapsers (Figure 2E,F). However, CTSW expression was not associated with age, sex, baseline or post-treatment psoriasis severity, or treatment modality (Table S6). Sensitivity analysis also demonstrated higher CTSW expression and a greater proportion of CTSW⁺ cells in early relapsers, consistent with the primary analysis (Figures S5 and S6).&lt;/p&gt;&lt;p&gt;The low expression of Th17-associated transcripts in the CD4⁺ CTSW⁺ T subset suggests that CTSW⁺ T cells represent a distinct T cell subset rather than Th17 cells (Figure 2G). Thus, we next compared the expression profiles of th","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 11","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12623151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145539398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatiotemporal mapping reveals Ccl8hi macrophages as key drivers of testicular inflammaging 时空图谱揭示Ccl8hi巨噬细胞是睾丸炎症的关键驱动因素。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-17 DOI: 10.1002/ctm2.70527
Yanping Huang, Jiahui Yao, Zhiqiang Zhang, Bin Ouyang, Jintao Zhuang, Xianshen Sha, Canhui Qu, Chengqiang Mo, Mujun Lu, Nanhe Lin, Xiangzhou Sun, Qiyun Yang, Yun Xie
<div> <section> <h3> Background</h3> <p>Testicular macrophages (TMs) are key regulators of testicular immune privilege and endocrine function in the testis. However, their age-related heterogeneity and role in testicular degeneration remain poorly characterized.</p> </section> <section> <h3> Methods</h3> <p>We performed spatial transcriptomics and FACS-enriched single-cell RNA sequencing (scRNA-seq) to characterize testicular macrophage heterogeneity across ageing. Key findings were validated through intratesticular injection of recombinant CCL8 protein, organotypic culture of seminiferous tubules, and immunofluorescence analysis.</p> </section> <section> <h3> Results</h3> <p>Using spatial transcriptomics, we identified pronounced Leydig niche senescence in aged testes, mechanistically linked to TM-mediated inflammatory remodelling. Coupling FACS-enriched TM isolation with scRNA-seq resolved seven transcriptionally distinct subpopulations, including ageing-associated subsets (<i>Ccl8</i><sup>hi</sup> and <i>Cxcl13</i><sup>hi</sup>). These subsets exhibited inflammatory signalling rewiring (e.g., CCL8-CCR2 axis) and activation of senescence transcriptional regulators (<i>ASCL2</i>, <i>SPI1</i>, <i>CEBPB</i>, <i>JUNB</i>), with conserved mediators (<i>CCL8</i>, <i>TREM2</i>, <i>IL1β</i>, and <i>CXCL2</i>) across murine and human testes. Functional validation showed that intratesticular injection of recombinant CCL8 protein in 3-month-old mice recapitulated ageing phenotypes, such as germ cell apoptosis and steroidogenic decline.</p> </section> <section> <h3> Conclusions</h3> <p>Our multi-omics atlas highlights TM heterogeneity as a driver of testicular inflammaging and identifies <i>CCL8</i> as a conserved target for therapeutic interventions aimed at mitigating age-associated male reproductive decline.</p> </section> <section> <h3> Key points</h3> <div> <ol> <li> <p>Spatiotemporal multi‑omics establish inflammaging as a defining feature of testicular ageing.</p> </li> <li> <p>A refined CD74‑based sorting strategy improves enrichment of testicular macrophages.</p> </li> <li> <p>scRNA-seq resolves seven TM subsets with age‑dependent shifts.</p> </li>
背景:睾丸巨噬细胞(TMs)是睾丸免疫特权和内分泌功能的关键调节因子。然而,它们与年龄相关的异质性和在睾丸变性中的作用仍然缺乏特征。方法:我们使用空间转录组学和富含facs的单细胞RNA测序(scRNA-seq)来表征睾丸巨噬细胞在衰老过程中的异质性。通过精囊内注射重组CCL8蛋白、精小管器官型培养和免疫荧光分析验证了关键发现。结果:利用空间转录组学,我们在老年睾丸中发现了明显的间质生态位衰老,这与tm介导的炎症重塑有机制联系。将facs富集的TM分离与scRNA-seq结合,分离出7个转录不同的亚群,包括与衰老相关的亚群(Ccl8hi和Cxcl13hi)。这些亚群在小鼠和人类睾丸中表现出炎症信号重新布线(例如,CCL8- ccr2轴)和衰老转录调节因子(ASCL2, SPI1, CEBPB, JUNB)的激活,以及保守介质(CCL8, TREM2, il - 1β和CXCL2)。功能验证表明,3月龄小鼠睾丸内注射重组CCL8蛋白可重现生殖细胞凋亡和甾体性下降等衰老表型。结论:我们的多组学图谱强调了TM异质性是睾丸炎症的驱动因素,并确定CCL8是旨在减轻年龄相关男性生殖功能下降的治疗干预的保守靶点。重点:时空多组学证实炎症是睾丸衰老的一个决定性特征。一种基于CD74的精细化分选策略改善了睾丸巨噬细胞的富集。scRNA-seq解决了7个随年龄变化的TM亚群。TM分泌的炎症介质-特别是ccl8 -驱动睾丸炎症。
{"title":"Spatiotemporal mapping reveals Ccl8hi macrophages as key drivers of testicular inflammaging","authors":"Yanping Huang,&nbsp;Jiahui Yao,&nbsp;Zhiqiang Zhang,&nbsp;Bin Ouyang,&nbsp;Jintao Zhuang,&nbsp;Xianshen Sha,&nbsp;Canhui Qu,&nbsp;Chengqiang Mo,&nbsp;Mujun Lu,&nbsp;Nanhe Lin,&nbsp;Xiangzhou Sun,&nbsp;Qiyun Yang,&nbsp;Yun Xie","doi":"10.1002/ctm2.70527","DOIUrl":"10.1002/ctm2.70527","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Background&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Testicular macrophages (TMs) are key regulators of testicular immune privilege and endocrine function in the testis. However, their age-related heterogeneity and role in testicular degeneration remain poorly characterized.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We performed spatial transcriptomics and FACS-enriched single-cell RNA sequencing (scRNA-seq) to characterize testicular macrophage heterogeneity across ageing. Key findings were validated through intratesticular injection of recombinant CCL8 protein, organotypic culture of seminiferous tubules, and immunofluorescence analysis.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Using spatial transcriptomics, we identified pronounced Leydig niche senescence in aged testes, mechanistically linked to TM-mediated inflammatory remodelling. Coupling FACS-enriched TM isolation with scRNA-seq resolved seven transcriptionally distinct subpopulations, including ageing-associated subsets (&lt;i&gt;Ccl8&lt;/i&gt;&lt;sup&gt;hi&lt;/sup&gt; and &lt;i&gt;Cxcl13&lt;/i&gt;&lt;sup&gt;hi&lt;/sup&gt;). These subsets exhibited inflammatory signalling rewiring (e.g., CCL8-CCR2 axis) and activation of senescence transcriptional regulators (&lt;i&gt;ASCL2&lt;/i&gt;, &lt;i&gt;SPI1&lt;/i&gt;, &lt;i&gt;CEBPB&lt;/i&gt;, &lt;i&gt;JUNB&lt;/i&gt;), with conserved mediators (&lt;i&gt;CCL8&lt;/i&gt;, &lt;i&gt;TREM2&lt;/i&gt;, &lt;i&gt;IL1β&lt;/i&gt;, and &lt;i&gt;CXCL2&lt;/i&gt;) across murine and human testes. Functional validation showed that intratesticular injection of recombinant CCL8 protein in 3-month-old mice recapitulated ageing phenotypes, such as germ cell apoptosis and steroidogenic decline.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Our multi-omics atlas highlights TM heterogeneity as a driver of testicular inflammaging and identifies &lt;i&gt;CCL8&lt;/i&gt; as a conserved target for therapeutic interventions aimed at mitigating age-associated male reproductive decline.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Key points&lt;/h3&gt;\u0000 \u0000 &lt;div&gt;\u0000 &lt;ol&gt;\u0000 \u0000 &lt;li&gt;\u0000 &lt;p&gt;Spatiotemporal multi‑omics establish inflammaging as a defining feature of testicular ageing.&lt;/p&gt;\u0000 &lt;/li&gt;\u0000 \u0000 &lt;li&gt;\u0000 &lt;p&gt;A refined CD74‑based sorting strategy improves enrichment of testicular macrophages.&lt;/p&gt;\u0000 &lt;/li&gt;\u0000 \u0000 &lt;li&gt;\u0000 &lt;p&gt;scRNA-seq resolves seven TM subsets with age‑dependent shifts.&lt;/p&gt;\u0000 &lt;/li&gt;\u0000 \u0000 ","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 11","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12623838/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145539466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cell-free transcriptomic profiles and mechanism insights in female androgenetic alopecia 女性雄激素源性脱发的无细胞转录组谱和机制研究。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-14 DOI: 10.1002/ctm2.70471
Lingling Jia, Mingyang Lu, Siwei Deng, Yongcheng Jin, Changjiang Zhao, Ruiyu Luo, Yuan Zhu, Zihan Li, Zixuan An, Hua Jiang, Yufei Li
<p>Dear Editor,</p><p>Our study presents a novel predictive machine learning model that demonstrates the potential of plasma cell-free RNA (cfRNA) for diagnosing and prognosing female androgenetic alopecia (FAGA). We identified cell-free <i>DNAJB9</i> as significantly associated with FAGA through bioinformatic analysis and machine learning followed by RT-qPCR validation (Figure 1A).</p><p>FAGA manifests heterogeneously,<span><sup>1</sup></span> often as diffuse thinning of the crown and frontal scalp.<span><sup>2</sup></span> It's pathogenesis critically involves androgen-hair follicle interactions and WNT and JAK-STAT signalling.<span><sup>3</sup></span> The cfRNA in bodily fluids have shown diagnostic/prognostic potential for various diseases.<span><sup>4</sup></span> Machine learning is increasingly used to analyse complex cfRNA data.<span><sup>5</sup></span> However, the potential association between cfRNA and FAGA remains unclear.</p><p>For subsequent analyses comparing disease severity, we focused on the ‘upper’ group as patients in the top 25% of the FAGA-Index (scores > 5.53) and the ‘lower’ group as those in the bottom 25% (scores < 1.92). Blood test results (Figure S1 and Table S2) showed no significant differences in various haematological and biochemical indicators between the FAGA and control groups. However, testosterone exhibited a significantly lower level in the ‘upper’ group (Figure S5), supporting that the FAGA-Index effectively enhances the stratification of patients by severity and may facilitate identification of other potential biomarkers in FAGA progression. Greater variation in principal component analysis (PCA) of cfRNA expression profiles between upper and lower FAGA subgroups, compared to that between FAGA and control groups, also suggested increased heterogeneity or molecular diversity within FAGA subtypes (Figure 1C and D).</p><p>The RNA biotypes were categorised based on Ensembl classifications with minor adjustments (Figure 1E). Analysis of differentially expressed genes (DEGs) showed that <i>CYTB</i>, <i>RNY1</i>, and <i>TMSB4X</i> were notably upregulated in FAGA patients, whilst <i>EEF1A1</i> was significantly downregulated (Figure 2A; Table S5). Furthermore, genes including <i>ND2</i>, <i>ATP6, ND6</i>, and <i>PARLP1</i> exhibited significant expression changes across varying disease severities (Table S7), suggesting their potential association with FAGA progression (Figure 2B). Functional enrichment analysis of these DEGs implicated pathways related to sensory perception, nuclear division, chromosome segregation, and mitosis in FAGA (Figure 2C and D; Tables S6 and S8). Pathway activity analysis reinforced the potential importance of JAK-STAT and WNTs pathways in FAGA (Figure 3A–C; Tables S17–S19). A comparison of transcription factor (TF) activities between FAGA patients and controls (Figure 3D; Table S9) revealed significantly increased activity of <i>NCOA3</i> and <i>MAX</i>. However, no significant di
我们的研究提出了一种新的预测机器学习模型,该模型证明了无浆细胞RNA (cfRNA)在诊断和预测女性雄激素性脱发(FAGA)方面的潜力。我们通过生物信息学分析和机器学习以及RT-qPCR验证,鉴定了无细胞DNAJB9与FAGA显著相关(图1A)。FAGA的表现是不均匀的,常表现为冠部和额部弥漫性变薄它的发病机制主要涉及雄激素与毛囊的相互作用以及WNT和JAK-STAT信号体液中的cfRNA已显示出对多种疾病的诊断/预后潜力机器学习越来越多地用于分析复杂的cfRNA数据然而,cfRNA和FAGA之间的潜在关联尚不清楚。对于比较疾病严重程度的后续分析,我们将重点放在faga指数前25%的患者(得分&gt; 5.53)和最低25%的患者(得分&lt; 1.92)的“高”组和“低”组。血液检测结果(图S1和表S2)显示,FAGA组与对照组的各项血液学和生化指标均无显著差异。然而,睾酮在“高”组中表现出明显较低的水平(图S5),支持FAGA指数有效地增强了患者严重程度的分层,并可能有助于识别FAGA进展中的其他潜在生物标志物。与FAGA和对照组相比,上、下FAGA亚组之间cfRNA表达谱的主成分分析(PCA)差异更大,也表明FAGA亚型内异质性或分子多样性增加(图1C和D)。RNA生物型根据Ensembl分类进行分类,稍作调整(图1E)。差异表达基因(DEGs)分析显示,FAGA患者中CYTB、RNY1和TMSB4X显著上调,EEF1A1显著下调(图2A;表S5)。此外,包括ND2、ATP6、ND6和PARLP1在内的基因在不同疾病严重程度中表现出显著的表达变化(表S7),表明它们与FAGA进展的潜在关联(图2B)。这些deg的功能富集分析涉及FAGA中与感觉知觉、核分裂、染色体分离和有丝分裂相关的途径(图2C和D;表S6和S8)。通路活性分析强化了JAK-STAT和WNTs通路在FAGA中的潜在重要性(图3A-C;表S17-S19)。FAGA患者和对照组之间转录因子(TF)活性的比较(图3D;表S9)显示NCOA3和MAX活性显著增加。然而,faga高亚组和低亚组之间的TF活性没有显著差异(表S10)。至关重要的是,我们观察到无细胞DNAJB9表达与FAGA指数之间存在显著的负相关,这表明低DNAJB9表达可能与FAGA严重程度的增加有关(表S11)。蛋白-蛋白相互作用网络(PPI)分析进一步揭示,与对照组相比,在FAGA中,上调的基因驱动内分泌补偿和线粒体应激反应,而下调的基因抑制生长信号(MET/mTORC1)和RNA代谢(图S2)。比较上faga和下faga,线粒体/内分泌活动增加,同时翻译和钙稳态受损(图S3)。这些结果表明,随着FAGA进展,通路失调加剧(表S12-S15)。随后,我们利用机器学习开发了FAGA预测模型,采用GeneLLM下游分类框架,6这是一种最先进的cfRNA分类方法。在初始特征提取之后,进行深度特征挖掘,以发现FAGA基因表达谱中的潜在模式。cfRNA RPKM矩阵被分为训练集(40%)、验证集(40%)和测试集(40%)(图4A)。大的、完全固定的测试集提供了一个严格的内部验证模型对来自同一人口的未见数据的性能。为了确保稳健性,使用10倍交叉验证进行超参数优化。该模型的曲线下面积(AUC)为。707用于区分FAGA患者和对照组(图4B)。714用于区分高与低的FAGA-Index分数(图4C)。它鉴定了几个与FAGA相关的基因,包括VGLL3、CYP1A1、PDE7B的反义基因,尤其是DNAJB9(图4D)。与FAGA严重程度相关的特征,如长链非编码RNA ARL14EP-DT和假基因TJAP1P1也被突出显示(图4E)。我们对6种候选生物标志物的表达水平与各种血液参数进行了相关性分析(图S6;表S20)。 然而,相关系数显示只有弱到中等的相关性,这意味着生化诊断和分子诊断之间需要更多的验证。内部和外部队列的进一步RT-qPCR验证证实,无细胞VGLL3、PDE7B反义和DNAJB9在FAGA患者中显著下调,而lncRNA ARL14EP-DT和假基因TJAP1P1在FAGA上亚组中显著下调(图S4)。值得注意的是,DNAJB9是细胞应激反应所必需的DNAJ/HSP40热休克蛋白HSP40家族蛋白参与调节雄激素受体(AR)活性,通常使AR处于非活性状态。8,9 DNAJB9表达的减少可能会潜在地破坏毛囊中的AR信号,特别是在压力下。综上所述,作为首次将cfRNA生物信息学分析与机器学习相结合的研究,本研究为cfRNA在FAGA诊断和预后中的应用建立了关键的概念验证,解决了该领域的关键空白,并为未来的工作提供了坚实的基础。我们的探索性模型虽然预测能力中等,但证明了无细胞DNAJB9作为FAGA生物标志物和治疗干预的候选物是有效的,值得进一步研究。项目监督由H.J. Y.L. s.d.负责,y.j.、H.J.和Y.L.负责概念化。l.j., m.l.和Y.L.管理临床招募设计。Y.J.设计并进行了湿室实验。数据分析和解释由S.D.和z.a完成。主要的稿件撰写和修改工作由l.j.、m.l.、S.D.和Y.J.负责。人体样本和数据收集的协调工作由y.z.、l.j.、h.j.、m.l.、y.l.、Z.L、c.z.和R.L.负责。所有作者都参与了对结果的讨论并对稿件提供了反馈。没有竞争利益需要披露。所有数据预处理和下游分析使用标准生物信息学工具,在基于Linux CentOS 8的高性能计算(HPC)系统和R版本4.1.3上进行,由OxTium Technology Co. Ltd提供。这些工具的详细信息,包括它们的名称、版本和具体用法,将在方法部分中概述。除非另有说明,否则所有工具都采用默认参数。本研究中所有受试者均被充分告知研究目的、程序和可能存在的风险,并在参与前获得书面知情同意。此外,研究方案得到了上海东方医院伦理审查委员会(EC.D(BG).016.02.1)的伦理审查和批准。所有cfRNA测序数据已提交至NCBI SRA数据库,登录号为PRJNA1146172。
{"title":"Cell-free transcriptomic profiles and mechanism insights in female androgenetic alopecia","authors":"Lingling Jia,&nbsp;Mingyang Lu,&nbsp;Siwei Deng,&nbsp;Yongcheng Jin,&nbsp;Changjiang Zhao,&nbsp;Ruiyu Luo,&nbsp;Yuan Zhu,&nbsp;Zihan Li,&nbsp;Zixuan An,&nbsp;Hua Jiang,&nbsp;Yufei Li","doi":"10.1002/ctm2.70471","DOIUrl":"10.1002/ctm2.70471","url":null,"abstract":"&lt;p&gt;Dear Editor,&lt;/p&gt;&lt;p&gt;Our study presents a novel predictive machine learning model that demonstrates the potential of plasma cell-free RNA (cfRNA) for diagnosing and prognosing female androgenetic alopecia (FAGA). We identified cell-free &lt;i&gt;DNAJB9&lt;/i&gt; as significantly associated with FAGA through bioinformatic analysis and machine learning followed by RT-qPCR validation (Figure 1A).&lt;/p&gt;&lt;p&gt;FAGA manifests heterogeneously,&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; often as diffuse thinning of the crown and frontal scalp.&lt;span&gt;&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt; It's pathogenesis critically involves androgen-hair follicle interactions and WNT and JAK-STAT signalling.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; The cfRNA in bodily fluids have shown diagnostic/prognostic potential for various diseases.&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt; Machine learning is increasingly used to analyse complex cfRNA data.&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt; However, the potential association between cfRNA and FAGA remains unclear.&lt;/p&gt;&lt;p&gt;For subsequent analyses comparing disease severity, we focused on the ‘upper’ group as patients in the top 25% of the FAGA-Index (scores &gt; 5.53) and the ‘lower’ group as those in the bottom 25% (scores &lt; 1.92). Blood test results (Figure S1 and Table S2) showed no significant differences in various haematological and biochemical indicators between the FAGA and control groups. However, testosterone exhibited a significantly lower level in the ‘upper’ group (Figure S5), supporting that the FAGA-Index effectively enhances the stratification of patients by severity and may facilitate identification of other potential biomarkers in FAGA progression. Greater variation in principal component analysis (PCA) of cfRNA expression profiles between upper and lower FAGA subgroups, compared to that between FAGA and control groups, also suggested increased heterogeneity or molecular diversity within FAGA subtypes (Figure 1C and D).&lt;/p&gt;&lt;p&gt;The RNA biotypes were categorised based on Ensembl classifications with minor adjustments (Figure 1E). Analysis of differentially expressed genes (DEGs) showed that &lt;i&gt;CYTB&lt;/i&gt;, &lt;i&gt;RNY1&lt;/i&gt;, and &lt;i&gt;TMSB4X&lt;/i&gt; were notably upregulated in FAGA patients, whilst &lt;i&gt;EEF1A1&lt;/i&gt; was significantly downregulated (Figure 2A; Table S5). Furthermore, genes including &lt;i&gt;ND2&lt;/i&gt;, &lt;i&gt;ATP6, ND6&lt;/i&gt;, and &lt;i&gt;PARLP1&lt;/i&gt; exhibited significant expression changes across varying disease severities (Table S7), suggesting their potential association with FAGA progression (Figure 2B). Functional enrichment analysis of these DEGs implicated pathways related to sensory perception, nuclear division, chromosome segregation, and mitosis in FAGA (Figure 2C and D; Tables S6 and S8). Pathway activity analysis reinforced the potential importance of JAK-STAT and WNTs pathways in FAGA (Figure 3A–C; Tables S17–S19). A comparison of transcription factor (TF) activities between FAGA patients and controls (Figure 3D; Table S9) revealed significantly increased activity of &lt;i&gt;NCOA3&lt;/i&gt; and &lt;i&gt;MAX&lt;/i&gt;. However, no significant di","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 11","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctm2.70471","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145512239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Illuminating the genomic frontier of invasive non-typhoidal Salmonella infections 阐明侵袭性非伤寒沙门氏菌感染的基因组前沿。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-12 DOI: 10.1002/ctm2.70526
Hao Wang, Li Tang, Haiyang Zhou, Peilu Xie, Min Yue
<p>In October 2024, the World Health Organisation (WHO) designated non-typhoidal serovars of <i>Salmonella enterica</i> as a global high-risk agent for Public Health Emergency of International Concern (PHEIC), spotlighting this urgent threat to global public health.<span><sup>1</sup></span> Unlike non-invasive serovars, which typically cause gastroenteritis, the invasive non-typhoidal <i>Salmonella</i> (iNTS) ones drive severe extraintestinal infections, responsible for approximately 87,100 deaths annually, with mortality rates of 18.1%.<span><sup>3</sup></span> The burden is critically compounded by the escalating crisis of antimicrobial resistance (AMR).</p><p>While historically recognised as a major public health issue in Africa,<span><sup>4</sup></span> often associated with HIV and malaria co-infections,<span><sup>5</sup></span> its epidemiology and transmission dynamics in other regions remain poorly understood. To fill the gap, our group has reported several invasive non-typhodial <i>Salmonella</i> serovars (Goldcoast, Livingstone, Telelkebir and Uzaramo) circulating.<span><sup>6-9</sup></span> Most recently, our large-scale genomic epidemiology study in China,<span><sup>10</sup></span> combining whole-genome sequencing with advanced Bayesian analyses, has uncovered a disturbing evolutionary shift from serovar Choleraesuis to Enteritidis. Challenging the conventional understanding of iNTS as a zoonotic disease transmitted from animals, our genomic evidence, as well as the patient cohort, demonstrates that iNTS is adapting to humans and evolving toward sustained human-to-human transmission.<span><sup>10</sup></span> Growing recognition of the bacterium's pandemic potential demands an urgent revision of global surveillance and targeted interventions.</p><p>Analysing the whole-genome sequencing (WGS) data of iNTS collected over the past three decades in China, the recent study revealed a significant epidemiological shift in China: The predominant serovar has transitioned from <i>S</i>. Choleraesuis, traditionally associated with swine, to <i>S</i>. Enteritidis,<span><sup>10</sup></span> a serovar notorious for its global outbreak-prone and frequent association with poultry.<span><sup>11-13</sup></span> This change indicates possible adaptive evolution driven by environmental changes (e.g. surge of poultry consumption, targeted interventions) or host interactions (e.g. immune pressure). Alarmingly, the genomic analysis<span><sup>10</sup></span> highlights a surge of AMR—86.54% of the iNTS strains possessing quinolone resistance, either through genetic mutations (e.g. <i>gyrA</i> mutations) or acquired genes (e.g. <i>qnr</i> genes). Furthermore, 66% of the isolates were multidrug-resistant (MDR). Of particular concern is the annually increasing detection rate of <i>bla<sub>CTX-M</sub></i> genes, conferring resistance to third-generation cephalosporins. Genetic context and co-localisation analyses implicate mobile genetic elements (MGEs)—plasmid
2024年10月,世界卫生组织(世卫组织)将非伤寒沙门氏菌血清型指定为国际关注的突发公共卫生事件(PHEIC)的全球高风险病原体,突显了这一对全球公共卫生的紧迫威胁与通常引起肠胃炎的非侵入性血清型不同,侵入性非伤寒沙门氏菌(iNTS)引起严重的肠外感染,每年造成约87,100人死亡,死亡率为18.1% 3不断升级的抗菌素耐药性危机严重加重了这一负担。虽然历来被认为是非洲的一个重大公共卫生问题,4往往与艾滋病毒和疟疾合并感染有关5,但其在其他区域的流行病学和传播动态仍然知之甚少。为了填补这一空白,我们的小组报告了几种侵入性非伤寒沙门氏菌血清型(Goldcoast, Livingstone, Telelkebir和Uzaramo)的传播。最近,我们在中国进行的大规模基因组流行病学研究,将全基因组测序与先进的贝叶斯分析相结合,发现了从血清型霍乱到肠炎的令人不安的进化转变。我们的基因组证据以及患者队列挑战了将iNTS视为动物传播的人畜共患疾病的传统理解,表明iNTS正在适应人类,并朝着持续的人际传播发展人们日益认识到这种细菌的大流行潜力,需要紧急修订全球监测和有针对性的干预措施。最近的研究分析了过去三十年来在中国收集的iNTS全基因组测序(WGS)数据,揭示了中国的重大流行病学转变:主要的血清型已经从传统上与猪相关的霍乱沙门氏菌转变为肠炎沙门氏菌,后者是一种因其全球暴发易发且经常与家禽相关而臭名昭著的血清型。11-13这一变化表明,环境变化(如家禽消费激增、有针对性的干预措施)或宿主相互作用(如免疫压力)可能导致适应性进化。令人担忧的是,基因组分析10突出了amr的激增,86.54%的iNTS菌株具有喹诺酮类药物耐药性,要么是通过基因突变(如gyrA突变),要么是通过获得性基因(如qnr基因)。此外,66%的分离株具有多重耐药(MDR)。特别值得关注的是,blaCTX-M基因的检出率每年都在增加,这导致了对第三代头孢菌素的耐药性。遗传环境和共定位分析表明,移动遗传元件(MGEs)——质粒、转座子和整合子——是抗性基因传播的关键驱动因素。携带耐药决定因素的MGEs促进了细菌群体之间的水平基因转移,挑战了氟喹诺酮类药物和头孢菌素等一线治疗药物的疗效。为了应对肠杆菌科细菌耐药性上升的全球趋势,迫切需要加强对MGE动态的监测和有针对性的干预措施,以破坏MGE的传播。结合菌株特异性基因组数据和国家人口统计数据,一个新的风险指数模型评估了中国不同年龄和性别群体对iNTS感染的易感性。研究结果表明,一岁以下的婴儿感染iNTS的风险不成比例地高,其感染率是其他年龄组的15倍以上这一人群的高易感性可能归因于多种因素,包括不成熟的免疫系统和暴露风险,如受污染的人类食物或与病原体携带者密切接触。此外,该研究还揭示了显著的性别差异,男性感染iNTS的发生率明显高于女性这种基于性别的差异反映了在各种其他细菌感染中观察到的模式,表明潜在的生物因素(如激素对免疫反应的影响)或行为因素(如职业暴露)值得进一步调查。这些见解强调,迫切需要有针对性的公共卫生干预措施,如加强新生儿筛查和针对性别的风险缓解战略,以遏制非传染性疾病的发病率和死亡率。通过采用先进的贝叶斯时空模型和全面的全球系统基因组分析,我们将之前定义的肠炎沙门氏菌全球流行病进化支分解为三个不同的亚进化支:global -a(出现于1965-1975年)、global -b(1970-1981年)和global -c(2000-2004年)这一发现为理解全球流行病学和进化轨迹提供了一个完善的框架。 值得注意的是,Global-b在南非和中国的分布表明,可能通过国际旅行或贸易路线促进了病原体的洲际传播,例如从欧洲向亚洲出口家禽种禽。12 Global-c主要局限于中国,其特点是耐药性较高(耐多药率:Global-c, 97.56% &gt; Global-b, 22.36% &gt; Global-a, 2.07%)。10泛基因组分析进一步揭示,这支进化枝在控制一系列核心生物功能的基因上积累了明显的突变,包括代谢、信息处理和细胞信号,这将其与非洲进化枝(如C&amp;E谱系)区分开来遗传差异反映了由全球传播和区域特异性适应驱动的复杂进化史,这表明有必要进行支系特异性基因组监测,以监测iNTS的传播和适应。这项研究的范式转变发现是,人与人之间的传播在int的传播中占主导地位通过结合碱基替代率和时空相关性分析,我们确定单核苷酸多态性(SNP)距离为4或更少的对分离物表明最近发生了传播事件。通过对来自One Health的800多个肠炎沙门氏菌基因组的分析,包括动物、侵袭性人类病例和腹泻患者,该研究确定,导致侵袭性疾病的57.52%的传播事件可归因于人与人之间的直接接触值得注意的是,腹泻患者被认为是这一传播链中的关键媒介,可能通过密切接触或人为制备的食品污染,促进病原体在人群中传播。这一结论得到了人类和动物来源菌株之间显著的基因组差异的支持,如MGE分布、抗性基因谱和泛基因组数据所证明的那样,改变了传统的以牲畜为中心的传播模型,并与我们小组的初步证据一致这一发现强调迫切需要修订以人际接触网络为重点的公共卫生战略建议在基因组分析中使用≤4个SNP阈值来追踪疫情并进行早期干预10。迄今为止,还没有疫苗获得监管部门批准供人使用。为了应对全球范围内日益增加的人类适应传播的iNTS,我们提出了以下关键策略:(1)强制在血液感染的常规监测中进行iNTS,特别是在热点地区;(2)在医院和诊所实施严格的抗菌药物管理方案,特别是避免经验性使用氟喹诺酮类药物或第三代头孢菌素,除非有指示;(3)扩大One Health流行病学调查,结合人类病例数据、动物监测、食物链采样和WGS环境测试,确定主要宿主和具体传播途径;(4)针对非洲的鼠伤寒沙门氏菌ST313和中国的肠炎沙门氏菌等优势区域血清型/进化支开发疫苗,并针对保守的免疫参数进行优化。然而,从基因组发现到公共卫生干预的实施挑战仍然存在,特别是在资源有限的地区。由于不断增加的人际传播和加速的抗微生物药物耐药性的双重威胁,这场危机使我们迫切需要部署尖端技术。在公平的全球伙伴关系的支持下,人工智能增强监测、信使RNA疫苗平台、基于crispr的诊断和噬菌体治疗等创新至关重要。作为一种跨越人畜共患和人类领域的病原体,iNTS是持续威胁病原体的哨兵,要求采取积极主动、技术支持和全球协调的应对措施,这不仅是一种选择,而且是全球卫生安全的必要条件。MY, HW, LT共同撰写初稿,HZ和PX审阅稿件。作者声明无利益冲突。国家自然科学基金(no. 32573359);国家重点研究项目(no. 32573359);项目资助:2022YFC2604201)和欧盟地平线2020研究与创新计划(资助协议号861917 - SAFFI),浙江省自然科学基金(批准号:2022YFC2604201)。LZ24C180002),中国科学院杭州高等研究院科研经费。资助者在研究设计、数据收集和分析、决定发表或准备手稿方面没有任何作用。不需要申报。
{"title":"Illuminating the genomic frontier of invasive non-typhoidal Salmonella infections","authors":"Hao Wang,&nbsp;Li Tang,&nbsp;Haiyang Zhou,&nbsp;Peilu Xie,&nbsp;Min Yue","doi":"10.1002/ctm2.70526","DOIUrl":"10.1002/ctm2.70526","url":null,"abstract":"&lt;p&gt;In October 2024, the World Health Organisation (WHO) designated non-typhoidal serovars of &lt;i&gt;Salmonella enterica&lt;/i&gt; as a global high-risk agent for Public Health Emergency of International Concern (PHEIC), spotlighting this urgent threat to global public health.&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; Unlike non-invasive serovars, which typically cause gastroenteritis, the invasive non-typhoidal &lt;i&gt;Salmonella&lt;/i&gt; (iNTS) ones drive severe extraintestinal infections, responsible for approximately 87,100 deaths annually, with mortality rates of 18.1%.&lt;span&gt;&lt;sup&gt;3&lt;/sup&gt;&lt;/span&gt; The burden is critically compounded by the escalating crisis of antimicrobial resistance (AMR).&lt;/p&gt;&lt;p&gt;While historically recognised as a major public health issue in Africa,&lt;span&gt;&lt;sup&gt;4&lt;/sup&gt;&lt;/span&gt; often associated with HIV and malaria co-infections,&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt; its epidemiology and transmission dynamics in other regions remain poorly understood. To fill the gap, our group has reported several invasive non-typhodial &lt;i&gt;Salmonella&lt;/i&gt; serovars (Goldcoast, Livingstone, Telelkebir and Uzaramo) circulating.&lt;span&gt;&lt;sup&gt;6-9&lt;/sup&gt;&lt;/span&gt; Most recently, our large-scale genomic epidemiology study in China,&lt;span&gt;&lt;sup&gt;10&lt;/sup&gt;&lt;/span&gt; combining whole-genome sequencing with advanced Bayesian analyses, has uncovered a disturbing evolutionary shift from serovar Choleraesuis to Enteritidis. Challenging the conventional understanding of iNTS as a zoonotic disease transmitted from animals, our genomic evidence, as well as the patient cohort, demonstrates that iNTS is adapting to humans and evolving toward sustained human-to-human transmission.&lt;span&gt;&lt;sup&gt;10&lt;/sup&gt;&lt;/span&gt; Growing recognition of the bacterium's pandemic potential demands an urgent revision of global surveillance and targeted interventions.&lt;/p&gt;&lt;p&gt;Analysing the whole-genome sequencing (WGS) data of iNTS collected over the past three decades in China, the recent study revealed a significant epidemiological shift in China: The predominant serovar has transitioned from &lt;i&gt;S&lt;/i&gt;. Choleraesuis, traditionally associated with swine, to &lt;i&gt;S&lt;/i&gt;. Enteritidis,&lt;span&gt;&lt;sup&gt;10&lt;/sup&gt;&lt;/span&gt; a serovar notorious for its global outbreak-prone and frequent association with poultry.&lt;span&gt;&lt;sup&gt;11-13&lt;/sup&gt;&lt;/span&gt; This change indicates possible adaptive evolution driven by environmental changes (e.g. surge of poultry consumption, targeted interventions) or host interactions (e.g. immune pressure). Alarmingly, the genomic analysis&lt;span&gt;&lt;sup&gt;10&lt;/sup&gt;&lt;/span&gt; highlights a surge of AMR—86.54% of the iNTS strains possessing quinolone resistance, either through genetic mutations (e.g. &lt;i&gt;gyrA&lt;/i&gt; mutations) or acquired genes (e.g. &lt;i&gt;qnr&lt;/i&gt; genes). Furthermore, 66% of the isolates were multidrug-resistant (MDR). Of particular concern is the annually increasing detection rate of &lt;i&gt;bla&lt;sub&gt;CTX-M&lt;/sub&gt;&lt;/i&gt; genes, conferring resistance to third-generation cephalosporins. Genetic context and co-localisation analyses implicate mobile genetic elements (MGEs)—plasmid","PeriodicalId":10189,"journal":{"name":"Clinical and Translational Medicine","volume":"15 11","pages":""},"PeriodicalIF":6.8,"publicationDate":"2025-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctm2.70526","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145502393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
m7G RNA methylation in cancer: Effect, mechanism and clinical application m7G RNA甲基化在肿瘤中的作用、机制及临床应用
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-09 DOI: 10.1002/ctm2.70521
PengYuan Dang, KaiBo Li, ZhenQiang Sun

Background

RNA methylation has emerged as a pivotal layer of post-transcriptional regulation that shapes the biological behavior of cancer cells. Among the diverse chemical modifications identified—such as N6-methyladenosine (m6A), N1-methyladenosine (m1A), 5-methylcytosine (m5C), 7-methylguanosine (m7G), 5-hydroxymethylcytosine (5hmC), and 2′-O-dimethyladenosine (m6Am)—the m7G modification has recently garnered increasing attention. Mounting evidence indicates that m7G methylation plays an essential role in RNA metabolism and profoundly influences cancer initiation and progression.

Main Topics

This Review synthesizes current advances in understanding the biological and clinical implications of m7G RNA methylation, with a particular focus on its key regulatory components, METTL1/WDR4 and eIF4E. We discuss how these enzymes and binding proteins orchestrate m7G deposition and recognition to modulate oncogenic processes, including cell growth, differentiation, metastasis, and therapeutic resistance. Furthermore, we highlight emerging evidence linking m7G-related pathways to broader signaling networks that govern cancer plasticity and tumor microenvironment remodeling.

Conclusions

m7G RNA methylation represents a rapidly evolving frontier in cancer epigenetics. The METTL1/WDR4 methyltransferase complex and eIF4E translation initiation factor have emerged as central nodes connecting RNA modification to oncogenic signaling. Targeting m7G-dependent pathways holds considerable promise for the development of novel diagnostic biomarkers and therapeutic strategies. Continued exploration of this modification may ultimately expand the landscape of RNA-based precision oncology.

Key points

  • m7G-driven selective regulation exerts context-dependent, two-sided effects on tumour progression.
  • m7G modulates therapeutic response, shaping chemosensitivity and resistance.
  • m7G holds substantial clinical promise as a diagnostic/prognostic biomarker and a therapeutic target.
背景:RNA甲基化已成为塑造癌细胞生物学行为的转录后调控的关键层。在已确定的各种化学修饰中,如n6 -甲基腺苷(m6A)、n1 -甲基腺苷(m1A)、5-甲基胞嘧啶(m5C)、7-甲基鸟苷(m7G)、5-羟甲基胞嘧啶(5hmC)和2'- o -二甲基腺苷(m6Am), m7G修饰最近引起了越来越多的关注。越来越多的证据表明,m7G甲基化在RNA代谢中起重要作用,并深刻影响癌症的发生和进展。主要主题:本综述综合了m7G RNA甲基化的生物学和临床意义的最新进展,特别关注其关键调控成分METTL1/WDR4和eIF4E。我们讨论了这些酶和结合蛋白如何协调m7G沉积和识别来调节致癌过程,包括细胞生长、分化、转移和治疗耐药性。此外,我们强调了将m7g相关通路与控制癌症可塑性和肿瘤微环境重塑的更广泛的信号网络联系起来的新证据。结论:m7G RNA甲基化代表了癌症表观遗传学快速发展的前沿。METTL1/WDR4甲基转移酶复合物和eIF4E翻译起始因子已成为连接RNA修饰与致癌信号传导的中心节点。靶向m7g依赖性通路对于开发新的诊断生物标志物和治疗策略具有相当大的前景。继续探索这种修饰可能最终扩大基于rna的精确肿瘤学的前景。关键点:m7g驱动的选择性调控对肿瘤进展具有上下文依赖的双边效应。m7G调节治疗反应,形成化疗敏感性和耐药性。m7G作为诊断/预后生物标志物和治疗靶点具有巨大的临床前景。
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引用次数: 0
CORRECTION: “[Immune cell subset profiling and metabolic dysregulation define the divergent immune microenvironments in HIV immunological non-responders]” 更正:“[免疫细胞亚群分析和代谢失调定义了HIV免疫无应答者的不同免疫微环境]”。
IF 6.8 1区 医学 Q1 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-11-09 DOI: 10.1002/ctm2.70522

[Chu Q, Fang N, Chen H, et al. Immune cell subset profiling and metabolic dysregulation define the divergent immune microenvironments in HIV immunological non-responders. Clin Transl Med. 2025;15(10):e70498. doi:10.1002/ctm2.70498]

[1. Adjustment of institutional affiliation order

We noticed that the order of institutional affiliations in the published version differs from our original submission. For consistency and accuracy, we kindly request that the following order be restored:

‘’Immune cell subset profiling and metabolic dysregulation define the divergent immune microenvironments in HIV immunological non-responders

Qingfei Chu1,2,3†, Ningye Fang4†, Huanhuan Chen4, Abdur Rashid5,6, Xia Luo1, Jianjun Li4*, Kang Li1,2,5*

1 Department of Microbiology, School of Basic Medicine, Guangxi Medical University, Nanning, Guangxi, China.

2 Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, 530021, China

3 Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China

4 Guangxi Key Laboratory of Major Infectious Disease Prevention Control and Biosafety Emergency Response, Guangxi Center for Disease Control and Prevention, Nanning, China

5 National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China

6 Division of Infectious Disease & International Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA

† These authors contributed equally to this work.

Corresponding authors:

E-mail: [email protected] (J. Li); [email protected] (K. Li).]

2. Correction to the Author Contributions section

During the proofing process, an oversight occurred regarding the Author Contributions statement. We sincerely apologize for this error. The corrected version should read as follows:

“Kang Li, Jianjun Li and Qingfei Chu conceived and designed the research. Qingfei Chu, Ningye Fang and Huanhuan Chen performed experiments. Abdur Rashid and Xia Luo assisted with the statistical analyses. Qingfei Chu and Ningye Fang wrote the first draft of the article. Qingfei Chu, Ningye Fang, Huanhuan Chen, Abdur Rashid, Xia Luo, Jianjun Li and Kang Li reviewed and edited the manuscript. All authors have read and agreed to the final version of the manuscript.”

We apologize for this error.

褚强,方宁,陈华,等。免疫细胞亚群分析和代谢失调定义了HIV免疫无应答者不同的免疫微环境。中华临床医学杂志,2015;15(10):e70498。doi: 10.1002 / ctm2.70498][1。机构归属顺序调整我们注意到发表版本中的机构归属顺序与我们最初提交的不同。为了保持一致性和准确性,我们要求恢复以下顺序:“免疫细胞亚群分析和代谢失调定义了HIV免疫无应答者的不同免疫微环境。楚庆飞1,2,3†,方宁晔4†,陈欢欢4,Abdur rashid5,6,罗霞1,李建军4*,李康1,2,5*1广西医科大学基础医学院微生物学系,广西南宁2广西艾滋病防治重点实验室,广西南宁市;广西医科大学公共卫生学院,南宁530021 3浙江大学医学院第二附属医院感染性疾病科,杭州310009 4广西疾病预防控制中心广西重大传染病预防控制与生物安全应急重点实验室,广西南宁5传染病智能跟踪与预测国家重点实验室,6南佛罗里达大学莫尔萨尼医学院感染性疾病与国际医学分科,Tampa, FL 33612, USA†作者对本文贡献相同。通讯作者:E-mail: [email protected] (J. Li);[email protected] (K. Li)。对作者贡献部分的更正在校对过程中,出现了关于作者贡献声明的疏忽。我们真诚地为这个错误道歉。更正后的版本应该是:“李康、李建军、褚庆飞构思并设计了这项研究。褚庆飞、方宁业和陈欢欢进行了实验。Abdur Rashid和Xia Luo协助进行统计分析。这篇文章的初稿是由褚庆飞和方宁业撰写的。褚庆飞、方宁业、陈欢欢、Abdur Rashid、罗霞、李建军、李康对稿件进行了审编。所有作者都已经阅读并同意了手稿的最终版本。”我们为这个错误道歉。
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Clinical and Translational Medicine
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