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Targeting Bcl-xL to eliminate chemotherapy-induced tumor dormancy and prevent breast cancer metastasis 靶向Bcl-xL消除化疗诱导的肿瘤休眠,预防乳腺癌转移。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-15 DOI: 10.1038/s41416-025-03292-y
Kinjal Gupta, Nicholas Koelsch, Victoria Neely, Laura Graham, Harry D. Bear, Michael O. Idowu, Hisashi Harada, Masoud H. Manjili
Chemotherapy-induced tumor dormancy is a major barrier to curative cancer therapy, particularly in triple-negative breast cancer (TNBC), where dormant residual cells evade treatment and fuel late relapses. To define survival mechanisms sustaining dormancy, we examined four breast cancer models: HER2-positive murine MMC and human SK-BR-3, and TNBC murine 4T1 and human MDA-MB-231. Dormancy was induced with low-dose FAC (5-Fluorouracil, Adriamycin, Cyclophosphamide). Across all models, dormant cells maintained high Bcl-xL expression. shRNA knockdown of Bcl-xL increased chemotherapy-induced apoptosis and prevented relapse in vitro and in vivo. Pharmacologic inhibition with A-1331852 improved chemotherapy, particularly in TNBC, and transient dosing avoided compensatory Survivin induction. Systemic A-1331852 suppressed relapse but caused off-target toxicity, whereas intratumoral delivery preserved efficacy and safety but failed to eliminate early lung dissemination, as confirmed by ex vivo culture of dormant tumor cells. Notably, disseminated cell frequency inversely correlated with primary tumor size during neoadjuvant chemotherapy, underscoring the need for systemic therapies targeting distant dormant cells. These findings identify Bcl-xL as a central survival factor in chemotherapy-induced dormancy, and suggest that tumor-targeted systemic delivery of A-1331852 may eradicate disseminated dormant cells and prevent metastatic relapse in high-risk TNBC.
化疗诱导的肿瘤休眠是治愈性癌症治疗的主要障碍,特别是在三阴性乳腺癌(TNBC)中,休眠残留细胞逃避治疗并导致晚期复发。为了确定维持休眠的生存机制,我们研究了四种乳腺癌模型:her2阳性小鼠MMC和人SK-BR-3, TNBC小鼠4T1和人MDA-MB-231。小剂量FAC(5-氟尿嘧啶、阿霉素、环磷酰胺)诱导休眠。在所有模型中,休眠细胞保持高Bcl-xL表达。shRNA敲低Bcl-xL增加了化疗诱导的细胞凋亡,防止了体内和体外复发。A-1331852的药理学抑制改善了化疗,特别是在TNBC中,并且短暂给药避免了代偿性Survivin诱导。系统性A-1331852抑制复发,但引起脱靶毒性,而瘤内给药保留了疗效和安全性,但未能消除早期肺播散,这一点通过休眠肿瘤细胞的体外培养得到证实。值得注意的是,在新辅助化疗期间,播散细胞频率与原发肿瘤大小呈负相关,强调需要针对远处休眠细胞进行全身治疗。这些发现表明Bcl-xL是化疗诱导的休眠的中心生存因子,并提示肿瘤靶向全身递送a -1331852可能会根除弥散性休眠细胞并防止高风险TNBC的转移性复发。
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引用次数: 0
CD44 upregulation in chronic liver disease marks the transition to hepatocellular carcinoma and portends poor prognosis CD44在慢性肝病中的上调标志着向肝细胞癌的转变,预示着不良预后。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-15 DOI: 10.1038/s41416-025-03284-y
Rui Dong, Akshaya Srikanth, Umesh Tharehalli, Thomas Seufferlein, Reinhold Schirmbeck, André Lechel
Hepatocellular carcinoma (HCC) often arises from chronic liver disease, but early biomarkers of malignant transformation are lacking. CD44, a transmembrane glycoprotein with multiple isoforms, has been implicated in cancer progression and immune modulation. We analysed CD44 expression in mouse models of chronic and acute liver injury and assessed its clinical relevance in human HCC using bulk and single-cell transcriptomic datasets. CD44 and its isoforms v6 and v10 were progressively upregulated in chronic liver injury, peaking in HCC. CD44-positive hepatocytes increased with fibrosis severity and were abundant in murine liver tumours. In human HCC, CD44 expression was significantly elevated compared to non-tumorous liver and was associated with reduced overall survival. CD44high tumours showed enrichment in oncogenic signalling pathways and greater infiltration of immunosuppressive cells, including M2 macrophages and Th2 cells. Single-cell RNA-seq confirmed CD44 expression in both tumour and immune cells, linking it to a protumor immune microenvironment. CD44 is a promising early biomarker of hepatocarcinogenesis and a potential therapeutic target. Its expression reflects disease progression from fibrosis to cancer and is associated with poor prognosis and immune evasion in HCC.
背景:肝细胞癌(HCC)通常起源于慢性肝脏疾病,但缺乏恶性转化的早期生物标志物。CD44是一种具有多种异构体的跨膜糖蛋白,与癌症进展和免疫调节有关。方法:我们分析了慢性和急性肝损伤小鼠模型中的CD44表达,并使用大量和单细胞转录组数据集评估其在人类HCC中的临床相关性。结果:CD44及其亚型v6和v10在慢性肝损伤中呈进行性上调,在HCC中达到峰值。cd44阳性肝细胞随着纤维化严重程度的增加而增加,并且在小鼠肝肿瘤中大量存在。在人类HCC中,与非肿瘤肝脏相比,CD44表达显著升高,并与总生存率降低相关。cd44高的肿瘤表现为致癌信号通路的富集和免疫抑制细胞的更多浸润,包括M2巨噬细胞和Th2细胞。单细胞RNA-seq证实了CD44在肿瘤和免疫细胞中的表达,将其与肿瘤免疫微环境联系起来。结论:CD44是一种有前景的肝癌发生早期生物标志物和潜在的治疗靶点。它的表达反映了HCC从纤维化到癌症的疾病进展,并与预后不良和免疫逃避有关。
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引用次数: 0
Capecitabine combined with immunotherapy as maintenance therapy improves survival in recurrent/metastatic nasopharyngeal carcinoma: a retrospective cohort study 卡培他滨联合免疫治疗作为维持治疗可提高复发/转移性鼻咽癌患者的生存率:一项回顾性队列研究。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-15 DOI: 10.1038/s41416-025-03285-x
Shui-Qing He, Ying Huang, Ze-Yu Zhao, Si-Qing Wen, Shu-Hui Lv, Lin Wang, Wei-Xin Bei, Yan-Qun Xiang, Guo-Ying Liu
We evaluated the clinical impact of combining capecitabine with immunotherapy (Immu/Cape) compared to immunotherapy monotherapy (Immu) as maintenance in recurrent/metastatic (R/M) nasopharyngeal carcinoma (NPC) patients following initial chemo-immunotherapy. We retrospectively analyzed 257 R/M NPC patients who achieved disease control after chemo-immunotherapy and received either Immu/Cape or Immu maintenance. Propensity score matching (PSM) was performed to balance baseline characteristics. Endpoints included progression-free survival (PFS) and overall survival (OS). Following PSM, the Immu/Cape group exhibited prolonged PFS (median, 27.87 vs 8.5 months, p = 0.016) and OS (3-year rate, 80.8% vs. 65.4%; p = 0.027). This survival benefit was most pronounced in patients with high-burden disease: >5 metastatic lesions, ≥2 involved organs, or detectable post-treatment EBV DNA. The primary toxicity was hand-foot syndrome, with a higher incidence in the Immu/Cape group (53.7% vs. 9.8%; p < 0.001), including 12.2% grade 3–4 events; other severe adverse events were comparable. This study provides hypothesis-generating evidence that Immu/Cape maintenance may improve survival in R/M NPC, especially for high-risk patients. Prospective, randomized trials are required to validate this strategy before it can be considered practice-changing.
背景:我们评估了卡培他滨联合免疫治疗(immune /Cape)与免疫治疗单药(immune)作为复发/转移(R/M)鼻咽癌(NPC)患者初始化疗免疫治疗后维持治疗的临床影响。方法:我们回顾性分析257例在化疗免疫治疗后病情得到控制并接受免疫/Cape或免疫维持治疗的R/M鼻咽癌患者。采用倾向评分匹配(PSM)来平衡基线特征。终点包括无进展生存期(PFS)和总生存期(OS)。结果:PSM后,免疫/Cape组PFS延长(中位,27.87 vs 8.5个月,p = 0.016), OS延长(3年,80.8% vs 65.4%, p = 0.027)。这种生存获益在高负担疾病患者中最为明显:bbb50转移灶,≥2受累器官,或治疗后可检测到EBV DNA。主要毒性为手足综合征,在免疫/Cape组发生率更高(53.7% vs. 9.8%)。结论:本研究提供了假设生成证据,表明维持免疫/Cape可提高R/M鼻咽癌患者的生存率,特别是对高危患者。在考虑改变实践之前,需要前瞻性随机试验来验证该策略。
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引用次数: 0
Fibroblast growth factor signals drive the metastatic behavior in small cell lung cancer 成纤维细胞生长因子信号驱动小细胞肺癌的转移行为。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-13 DOI: 10.1038/s41416-025-03276-y
Büsra Ernhofer, Anna Solta, Julia Sinner, Zsolt Megyesfalvi, Abigail J. Deloria, Kristiina Boettiger, Lisa Glatt, Lilla Horvath, Caterina Sturtzel, Andrea Wenninger-Weinzierl, Martin Distel, Michael Grusch, Beata Szeitz, Melinda Rezeli, Clemens Aigner, Balazs Dome, Karin Schelch
Early metastatic spread represents a challenge in fighting small cell lung cancer (SCLC). The molecular mechanisms underlying metastatic dissemination remain unclear in this devastating disease. Invasive traits were investigated in 13 SCLC cell lines using 3D-spheroid formation, sprouting assays, co-cultures and a zebrafish xenograft model. Proteomic analysis was performed to unravel metastatic drivers, which were validated by qPCR, growth factor arrays and specific inhibitors. Overall, 8 cell lines formed spheroids, and half of these displayed invasive sprouting in collagen. The ‘sprouter’ SCLC cells, which all had a YAP1-dominant subtype, showed increased migration in zebrafish larvae and penetrated endothelial cell monolayers to a higher extent, thereby mimicking intra- and extravasation. Proteomics revealed differences in adhesion properties, oncogenic pathways and receptor tyrosine kinase signalling. Sprouter cells showed higher expression levels of mesenchymal cell state markers. Stimulation with fibroblast growth factor 2 (FGF2) further induced invasive sprouting, while blocking the FGF/R axis resulted in a significant reduction of sprouting in vitro and in vivo. The FGF/R axis is a key driver of SCLC metastatic spread in the YAP1-dominant subtype. These data might facilitate the development of potential future therapies targeting FGF/R signalling to prevent SCLC progression and metastasis.
背景:早期转移性扩散是对抗小细胞肺癌(SCLC)的一个挑战。在这种毁灭性疾病中,转移性传播的分子机制尚不清楚。方法:采用三维球体形成、发芽试验、共培养和斑马鱼异种移植模型研究13株SCLC细胞株的侵袭特性。蛋白质组学分析揭示了转移驱动因素,并通过qPCR、生长因子阵列和特异性抑制剂进行了验证。结果:总体而言,8个细胞系形成球状体,其中一半在胶原蛋白中表现出侵袭性发芽。“传播者”SCLC细胞都具有yap1显性亚型,在斑马鱼幼虫中表现出增加的迁移,并在更高程度上穿透内皮细胞单层,从而模拟了细胞内和外渗。蛋白质组学揭示了粘附特性、致癌途径和受体酪氨酸激酶信号传导的差异。Sprouter细胞间充质细胞状态标记物表达水平较高。用成纤维细胞生长因子2 (FGF2)刺激进一步诱导侵袭性发芽,而阻断FGF/R轴导致体外和体内发芽显著减少。结论:FGF/R轴是yap1显性亚型SCLC转移扩散的关键驱动因素。这些数据可能促进未来针对FGF/R信号的潜在治疗方法的发展,以防止SCLC的进展和转移。
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引用次数: 0
Urothelium marker UPK2 identifies aggressive colorectal cancers with distinct molecular and histological features 尿路上皮标志物UPK2识别具有不同分子和组织学特征的侵袭性结直肠癌。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-11 DOI: 10.1038/s41416-025-03300-1
Ville K. Äijälä, Jouni Härkönen, Päivi Sirniö, Tuomo Mantere, Hanna Elomaa, Onni Sirkiä, Akseli Kehusmaa, Henna Karjalainen, Meeri Kastinen, Vilja V. Tapiainen, Maarit Ahtiainen, Olli Helminen, Erkki-Ville Wirta, Jukka Rintala, Sanna Meriläinen, Juha Saarnio, Tero Rautio, Toni T. Seppälä, Jan Böhm, Jukka-Pekka Mecklin, Anne Tuomisto, Markus J. Mäkinen, Juha P. Väyrynen
Uroplakin-2 (UPK2) is a relatively specific marker for urothelial cancer, often used in the differential diagnosis of tumors of unknown origin. UPK2 expression has been observed in colorectal cancers (CRCs), prompting further investigation. UPK2 expression was analyzed in two independent CRC cohorts (N = 1851) and The Cancer Genome Atlas (N = 467). We investigated the histopathological, immunological, molecular, and clinical characteristics of UPK2-positive CRCs. UPK2 was expressed in 12% of CRCs and associated with adverse features including advanced stage, lymphovascular invasion, tumor budding, and micropapillary growth (p < 0.01). UPK2 positivity correlated with higher CRC-specific mortality in both cohorts (Cohort 1: HR 1.97, 95% CI 1.00–3.88; Cohort 2: HR 3.33, 95% CI 2.15–5.16). In the larger cohort, this association remained independent of other prognostic parameters (HR 2.31, 95% CI 1.46–3.65). UPK2-positive tumors showed reduced infiltration of CD3 + T cells, B cells, plasma cells, and M2-like macrophages. Molecularly, these tumors were associated with TP53 mutation, CMS4 subtype, and upregulation of genes linked to keratinization and squamous differentiation, such as KRT17 and DSG3 (p < 0.01). UPK2 marks a distinct subset of CRCs with poor prognosis, epithelial-mesenchymal transition, micropapillary growth, and squamous differentiation. These findings may affect the development of targeted therapies in precision medicine.
背景:UPK2是尿路上皮癌的特异性标志物,常用于不明来源肿瘤的鉴别诊断。UPK2在结直肠癌(crc)中表达,有待进一步研究。方法:在两个独立的CRC队列(N = 1851)和癌症基因组图谱(N = 467)中分析UPK2表达。我们研究了upk2阳性crc的组织病理学、免疫学、分子和临床特征。结果:UPK2在12%的crc中表达,并与晚期、淋巴血管侵袭、肿瘤出芽和微乳头状生长等不良特征相关(p结论:UPK2标志着预后不良、上皮-间质转化、微乳头状生长和鳞状分化的crc的一个独特亚群。这些发现可能会影响精准医学中靶向治疗的发展。
{"title":"Urothelium marker UPK2 identifies aggressive colorectal cancers with distinct molecular and histological features","authors":"Ville K. Äijälä,&nbsp;Jouni Härkönen,&nbsp;Päivi Sirniö,&nbsp;Tuomo Mantere,&nbsp;Hanna Elomaa,&nbsp;Onni Sirkiä,&nbsp;Akseli Kehusmaa,&nbsp;Henna Karjalainen,&nbsp;Meeri Kastinen,&nbsp;Vilja V. Tapiainen,&nbsp;Maarit Ahtiainen,&nbsp;Olli Helminen,&nbsp;Erkki-Ville Wirta,&nbsp;Jukka Rintala,&nbsp;Sanna Meriläinen,&nbsp;Juha Saarnio,&nbsp;Tero Rautio,&nbsp;Toni T. Seppälä,&nbsp;Jan Böhm,&nbsp;Jukka-Pekka Mecklin,&nbsp;Anne Tuomisto,&nbsp;Markus J. Mäkinen,&nbsp;Juha P. Väyrynen","doi":"10.1038/s41416-025-03300-1","DOIUrl":"10.1038/s41416-025-03300-1","url":null,"abstract":"Uroplakin-2 (UPK2) is a relatively specific marker for urothelial cancer, often used in the differential diagnosis of tumors of unknown origin. UPK2 expression has been observed in colorectal cancers (CRCs), prompting further investigation. UPK2 expression was analyzed in two independent CRC cohorts (N = 1851) and The Cancer Genome Atlas (N = 467). We investigated the histopathological, immunological, molecular, and clinical characteristics of UPK2-positive CRCs. UPK2 was expressed in 12% of CRCs and associated with adverse features including advanced stage, lymphovascular invasion, tumor budding, and micropapillary growth (p &lt; 0.01). UPK2 positivity correlated with higher CRC-specific mortality in both cohorts (Cohort 1: HR 1.97, 95% CI 1.00–3.88; Cohort 2: HR 3.33, 95% CI 2.15–5.16). In the larger cohort, this association remained independent of other prognostic parameters (HR 2.31, 95% CI 1.46–3.65). UPK2-positive tumors showed reduced infiltration of CD3 + T cells, B cells, plasma cells, and M2-like macrophages. Molecularly, these tumors were associated with TP53 mutation, CMS4 subtype, and upregulation of genes linked to keratinization and squamous differentiation, such as KRT17 and DSG3 (p &lt; 0.01). UPK2 marks a distinct subset of CRCs with poor prognosis, epithelial-mesenchymal transition, micropapillary growth, and squamous differentiation. These findings may affect the development of targeted therapies in precision medicine.","PeriodicalId":9243,"journal":{"name":"British Journal of Cancer","volume":"134 4","pages":"650-661"},"PeriodicalIF":6.8,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41416-025-03300-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145741160","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
Sorafenib plus selective internal radiotherapy with 90Y resin microspheres for the treatment of uveal melanoma with liver metastasis: a phase I trial 索拉非尼加选择性内放疗90Y树脂微球治疗伴有肝转移的葡萄膜黑色素瘤:一期试验。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-11 DOI: 10.1038/s41416-025-03279-9
Grégoire Berthod, Christophe Cisarovsky, Tatiana Petrova, Laurent A. Decosterd, Eva Choong, Dan Celestini, Michel A. Cuendet, Sarah Boughdad, John O. Prior, Jean-Yves Meuwly, William D. Figg, Olivier Michielin, Serge Leyvraz
Selective internal radiation therapy (SIRT) and sorafenib are used for patients with liver metastases from uveal melanoma. We conducted a phase I study to determine the optimal timing of administration of sorafenib in combination with radioembolisation. Patients received radioembolisation plus sorafenib initiated 14, 11, or 3 days after or 7 days before radioembolisation. The primary endpoint was safety. Secondary endpoints included efficacy and evaluation of circulating angiogenic factors. Sorafenib plasma levels were quantified retrospectively. Ten patients received radioembolisation plus sorafenib. The most common grade 2–4 adverse events included rash, abdominal pain, fatigue and lymphocytopenia. Best response was partial response (30%) and stable disease (70%). Median progression-free and overall survival were 6.2 (4.8–not reached) and 11.7 months (9.4–not reached), respectively. Circulating angiogenic factors showed transient elevation at Day 10 post-SIRT when sorafenib was started 11–14 days after SIRT, but not when sorafenib was started before or just after SIRT. Most steady-state sorafenib plasma concentrations were in the upper percentiles relative to reference curves for single-agent sorafenib. SIRT plus sorafenib was feasible, but appeared more toxic than sorafenib alone, presumably due to altered pharmacokinetics. Sorafenib may hinder the angiogenic response when initiated before or shortly after SIRT. Registry: ClinicalTrials.gov, NCT01893099.
简介:选择性内放射治疗(SIRT)和索拉非尼用于葡萄膜黑色素瘤肝转移患者。我们进行了一项I期研究,以确定索拉非尼联合放射栓塞的最佳给药时间。方法:患者在放射栓塞后14天、11天或3天或7天前接受放射栓塞加索拉非尼治疗。主要终点是安全性。次要终点包括循环血管生成因子的疗效和评价。回顾性定量索拉非尼血浆水平。结果:10例患者接受放射栓塞联合索拉非尼治疗。最常见的2-4级不良事件包括皮疹、腹痛、疲劳和淋巴细胞减少。最佳反应是部分缓解(30%)和病情稳定(70%)。中位无进展生存期和总生存期分别为6.2个月(4.8-未达到)和11.7个月(9.4-未达到)。在SIRT后11-14天开始使用索拉非尼时,循环血管生成因子在SIRT后第10天出现短暂性升高,但在SIRT之前或之后开始使用索拉非尼时则没有。相对于单药索拉非尼的参考曲线,大多数稳态索拉非尼血浆浓度处于较高的百分位数。结论:SIRT联合索拉非尼是可行的,但似乎比单独使用索拉非尼毒性更大,可能是由于药代动力学的改变。在SIRT之前或之后不久开始使用索拉非尼可能会阻碍血管生成反应。临床试验注册:注册:ClinicalTrials.gov, NCT01893099。
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引用次数: 0
ColoStem, a core oncofetal signature that identifies poor prognosis colorectal tumors 结肠干细胞,鉴别预后不良的结直肠肿瘤的核心癌胎特征。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-10 DOI: 10.1038/s41416-025-03280-2
Laura Solé, Eric Canton, María Maqueda, Teresa Lobo-Jarne, Antonio Barbáchano, Ferran Torres, Julia-Jié Cabré-Romans, Ángela Montoto, Lierni Fernández-Ibarrondo, Daniel Martínez-Garcia, Marta Guix, Mónica Larrubia-Loring, Clara Montagut, Alberto Muñoz, Anna Bigas, Mar Iglesias, Beatriz Bellosillo, Lluís Espinosa
We have previously shown that non-curative chemotherapy imposes fetal conversion and high metastatic capacity to cancer cells. Analysis of public colorectal cancer datasets confirms the existence of a oncofetal signature consisting of 28 upregulated and 8 downregulated genes that stratify patients with worse prognosis. We have generated and analyzed a metacohort which integrates 1118 samples from six colorectal cancer public datasets and performed qPCR analysis of paraffin-embedded and plasma samples from our in-house cohort of colorectal cancer tumors. We uncovered a core oncofetal signature, which we have called ColoStem, composed of 5 genes upregulated and 3 genes downregulated that displays prognosis value in a multivariate analysis. We also defined EpiColoStem, a reduction of ColoStem, as a pure epithelial signature with comparable prognosis value as ColoStem. By qPCR analysis of RNA extracted from paraffin-embedded tissues, we demonstrated the actual possibility of using ColoStem and EpiColoStem to refine the prognosis of CRC patients with a simple an affordable method. Initial analysis of plasma samples indicated that both signatures could be adapted for its use in liquid biopsy. Our results reveal ColoStem and EpiColoStem tests as valuable tools for refining patient prognosis through the identification of fetal-type CRC tumors.
背景:我们之前已经表明,非治愈性化疗会导致胎儿转化和对癌细胞的高转移能力。对公共结直肠癌数据集的分析证实了癌胎特征的存在,该特征由28个上调基因和8个下调基因组成,可将预后较差的患者分层。方法:我们生成并分析了来自6个结直肠癌公共数据集的1118个样本,并对我们内部结直肠癌肿瘤队列的石蜡包埋和血浆样本进行了qPCR分析。结果:我们发现了一个核心的癌胎特征,我们称之为ColoStem,由5个基因上调和3个基因下调组成,在多变量分析中显示出预后价值。我们还将EpiColoStem定义为一种与ColoStem具有相当预后价值的纯上皮标记。通过对石蜡包埋组织中提取的RNA进行qPCR分析,我们证明了使用ColoStem和EpiColoStem以一种简单实惠的方法改善CRC患者预后的实际可能性。对血浆样本的初步分析表明,这两种特征都可以适用于液体活检。结论:我们的研究结果表明,通过识别胎儿型结直肠癌,结肠和表皮系统检查是改善患者预后的有价值的工具。
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引用次数: 0
RNLS hypomethylation as a potential epigenetic marker of lung cancer metastasis: an epigenome-wide association study RNLS低甲基化作为肺癌转移的潜在表观遗传标志物:一项全表观基因组关联研究。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-10 DOI: 10.1038/s41416-025-03283-z
Zhuangjie Guo, Jinkun Chen, Siyu Zhang, Jungang Xie, Hong Zhang, Pinpin Long, Peiran Yang
Lung cancer is highly lethal because most patients have already developed metastases at diagnosis, yet the epigenetic mechanisms driving metastasis are unclear. We performed an epigenome-wide association study on 42 lung cancer patients to identify differentially methylated positions (DMPs) in pulmonary tumour (PT), paratumor (PP), and normal (PN) tissues, and in peripheral blood. The impact of DMPs on gene expression and associated signalling pathways was examined. Functional validation included gene silencing in A549 and H1299 cells, analysis of the affected signalling pathway, and assessment of metastasis using mice injected with genetically edited cells. We identified 22 significant DMPs between PP and PN tissues, with several mapped to the RNLS promoter region, showing progressive hypomethylation from PN, PP, to PT. This hypomethylation was also present in the peripheral blood of patients who later developed metastasis. RNLS methylation was inversely correlated with its expression across multiple tissue types. The DMPs were enriched in Notch signalling. Silencing RNLS inhibited cancer cell proliferation and migration, and downregulated Notch signalling. RNLS deficiency reduced metastatic burden in mice. RNLS hypomethylation is an epigenetic alteration associated with lung cancer metastasis, with potential as an early biomarker and as a therapeutic target.
背景:肺癌是高致死率的,因为大多数患者在诊断时已经发生转移,但驱动转移的表观遗传机制尚不清楚。方法:我们对42例肺癌患者进行了一项全表观基因组关联研究,以确定肺肿瘤(PT)、肿瘤旁(PP)和正常(PN)组织以及外周血中的差异甲基化位点(dmp)。研究了DMPs对基因表达和相关信号通路的影响。功能验证包括在A549和H1299细胞中进行基因沉默,分析受影响的信号通路,并使用注射了基因编辑细胞的小鼠评估转移。结果:我们在PP和PN组织之间鉴定了22个显著的DMPs,其中一些映射到RNLS启动子区域,显示了从PN、PP到PT的进行性低甲基化。这种低甲基化也存在于后来发生转移的患者的外周血中。RNLS甲基化与其在多种组织类型中的表达呈负相关。dmp富含Notch信号。沉默RNLS可抑制癌细胞的增殖和迁移,下调Notch信号。RNLS缺陷降低了小鼠的转移性负担。结论:RNLS低甲基化是一种与肺癌转移相关的表观遗传改变,具有作为早期生物标志物和治疗靶点的潜力。
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引用次数: 0
The relationship between gut microbiota, lifestyle habits, and early-onset colorectal cancer: shedding light on early prediction 肠道菌群、生活习惯和早发性结直肠癌之间的关系:为早期预测提供线索。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-09 DOI: 10.1038/s41416-025-03277-x
Jia-Wen Deng, Yi-Lu Zhou, Ya-Xuan Zhang, Cheng-Bei Zhou, Jing-Yuan Fang
The development of early-onset colorectal cancer (EO-CRC) is linked to environmental exposures and gut microbiota alterations. We aimed to discover the connection and develop prediction strategies. In the observational study, we performed 16S rRNA sequencing and metagenomic sequencing on 76 samples from discovery cohort and validation cohort, and qPCR analysis of selected microbiota, along with lifestyle and dietary assessment on 298 samples from validation cohort. Mediation analysis was employed to investigate the mediating role of gut microbiota. Logistic regression analysis evaluated the optimal prediction model for EO-CRC, with the area under the receiver operating characteristic curves (AUC) assessing diagnostic value. Dysbiosis of the EO-CRC gut microbiota was characterised by evaluated abundance of F. nucleatum, P. micra, Pks+ E. coli, and F. Plautii. Mediation analysis showed that Pks+ E. coli mediated the relationship between fried food, processed meat and coffee to EO-CRC, while F. nucleatum mediated the adverse effects of snacks. A combination of three bacterial markers along with lifestyle and diet demonstrated strong diagnostic potential (AUC = 0.95, 95% CI = 0.92–0.98). Our data suggested that the EO-CRC-enriched bacteria may mediate the effects of lifestyle and dietary factors on disease development. A predictive model combining diet, lifestyle, and gut bacteria demonstrated promising early predictive capabilities.
背景:早发性结直肠癌(EO-CRC)的发展与环境暴露和肠道菌群改变有关。我们的目标是发现这种联系并制定预测策略。方法:在观察性研究中,我们对来自发现队列和验证队列的76个样本进行了16S rRNA测序和宏基因组测序,并对来自验证队列的298个样本进行了qPCR分析,并对所选择的微生物群进行了生活方式和饮食评估。采用中介分析研究肠道菌群的中介作用。Logistic回归分析评价EO-CRC的最优预测模型,以受试者工作特征曲线下面积(AUC)评估诊断价值。结果:EO-CRC肠道菌群失调的特征是评估了核梭菌、微芽胞杆菌、Pks+大肠杆菌和普氏梭菌的丰度。中介分析表明,Pks+大肠杆菌介导了油炸食品、加工肉制品和咖啡对EO-CRC的影响,而F. nucleatum介导了零食对EO-CRC的不良影响。三种细菌标志物结合生活方式和饮食表现出很强的诊断潜力(AUC = 0.95, 95% CI = 0.92-0.98)。结论:我们的数据表明,富含eo - crc的细菌可能介导生活方式和饮食因素对疾病发展的影响。一个结合饮食、生活方式和肠道细菌的预测模型显示出有希望的早期预测能力。
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引用次数: 0
Multizonal intraepithelial neoplasia of the lower genital tract and anus in women: terminology for defining the disease, an introduction by the British Society for Colposcopy and Cervical Pathology (BSCCP), International Anal Neoplasia Society (IANS), European Federation for Colposcopy (EFC) and British Society for the Study of Vulval Disease (BSSVD) scientific committees 女性下生殖道和肛门的多区域上皮内瘤变:定义疾病的术语,由英国阴道镜和宫颈病理学会(BSCCP)、国际肛门瘤变学会(IANS)、欧洲阴道镜联合会(EFC)和英国外阴疾病研究学会(BSSVD)科学委员会介绍。
IF 6.8 1区 医学 Q1 ONCOLOGY Pub Date : 2025-12-09 DOI: 10.1038/s41416-025-03259-z
Sarah J. Bowden, Laura Burney Ellis, Tamzin Cuming, Danielle Brogden, Susan M. Sherman, David A. Finch, Shaun Haran, Julie Bowring, George Mochloulis, Alice M. Schofield, Archie Krishna, Andrew G. Renehan, Maggie E. Cruickshank, Pierre Martin-Hirsch, Maria Kyrgiou, Deirdre Lyons, Theresa Freeman-Wang
Multizonal anogenital intraepithelial neoplasia (MZIN) is an uncommon chronic pre-malignant condition. In the United Kingdom (UK) and elsewhere MZIN is managed by a variety of clinical specialities with differing strategies, resulting in a lack of standardisation in diagnosis and treatment which ultimately disadvantages those affected. Screening for anogenital precancerous conditions is sporadic rather than nationalised in the UK and elsewhere in Europe, with the exception of the cervix. To address this lack of standardisation, the BSCCP brought together a panel of stakeholders from aligned expert society committees (IANS, EFC and BSSVD) to review existing evidence and provide a framework for national UK guidelines. Here, we define terminology and scope, as a platform for subsequent guideline development and guide further research. We define MZIN as Human Papillomavirus (HPV)-related squamous intraepithelial lesions occurring in two or more anogenital regions. People with MZIN are a high-risk group for anogenital cancers and subsequently may require tailored monitoring in specialist multi-disciplinary clinics. Centralisation of care and education for primary care providers may improve management. The development of guidelines which incorporate all clinical stakeholders are now needed to provide an international framework regarding the screening, diagnosis, treatment and future prevention of MZIN.
多区域肛门生殖器上皮内瘤变(MZIN)是一种罕见的慢性恶性前病变。在英国(UK)和其他地方,MZIN由不同的临床专业以不同的策略进行管理,导致诊断和治疗缺乏标准化,最终使受影响的人处于不利地位。除了宫颈外,在英国和欧洲其他地方,对肛门生殖器癌前病变的筛查是零星的,而不是全国性的。为了解决这一缺乏标准化的问题,BSCCP召集了一个由专家协会委员会(IANS, EFC和BSSVD)的利益相关者组成的小组,审查现有证据,并为英国国家指南提供框架。在此,我们定义了术语和范围,作为后续指南制定和指导进一步研究的平台。我们将MZIN定义为发生在两个或多个肛门生殖器区域的人乳头瘤病毒(HPV)相关的鳞状上皮内病变。患有MZIN的人是患肛门生殖器癌的高危人群,因此可能需要在专科多学科诊所进行量身定制的监测。初级保健提供者的集中护理和教育可以改善管理。现在需要制定包含所有临床利益攸关方的指南,以提供关于MZIN的筛查、诊断、治疗和未来预防的国际框架。
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British Journal of Cancer
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