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Corrigendum to “Genome-engineering technologies for modeling and treatment of cystic fibrosis” [Adv Med Sci (2023 Sept) 68(1) 111–120] “用于囊性纤维化建模和治疗的基因组工程技术”的勘误表[Journal of the Advances in Medical Sciences卷68/ 1,111 -120(2023),522]。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2025-02-12 DOI: 10.1016/j.advms.2025.01.009
Michał Dębczyński , Damian Mojsak , Łukasz Minarowski , Monika Maciejewska , Paweł Lisowski , Robert M. Mróz
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引用次数: 0
Novel factors of cisplatin resistance in epithelial ovarian tumours 卵巢上皮性肿瘤顺铂耐药的新因素。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2025-01-27 DOI: 10.1016/j.advms.2025.01.005
Pavol Harvanik , Martina Šemeláková , Zuzana Solárová , Peter Solár
Ovarian tumours are these days one of the biggest oncogynecological problems. In addition to surgery, the treatment of ovarian cancer includes also chemotherapy in which platinum preparations are one of the most used chemotherapeutic drugs. The principle of antineoplastic effects of cisplatin (cis-diamminedichloroplatinum(II), CDDP) is its binding to the DNA and the formation of adducts. While DNA adducts induce the process of apoptosis, or inhibit the process of DNA replication, which prevents further division of tumour cells, various molecular mechanisms can reverse this process. On the other hand, with increasing scientific knowledge, it is becoming clearer that chemotherapy resistance is a very complex process. In this regard, factors and the amount of their expression may regulate the effect of resistance to chemotherapy. This review focuses on new molecular mechanisms and factors such as mitochondrial dynamics, epithelial-mesenchymal transition (EMT), cluster of differentiation, exosomes and others, that could be involved in the emergence of CDDP resistance.
卵巢肿瘤是当今最大的妇科肿瘤问题之一。除手术外,卵巢癌的治疗还包括化疗,其中铂制剂是最常用的化疗药物之一。顺铂(顺-二胺二氯铂,CDDP)抗肿瘤作用的原理是其与DNA结合并形成加合物。DNA加合物可以诱导细胞凋亡过程,或抑制DNA复制过程,从而阻止肿瘤细胞进一步分裂,但多种分子机制可以逆转这一过程。另一方面,随着科学知识的增加,化疗耐药是一个非常复杂的过程,这一点越来越清楚。在这方面,因子及其表达量可能调节化疗耐药的效果。本文综述了可能参与CDDP耐药产生的线粒体动力学、上皮-间质转化(EMT)、分化簇、外泌体等新的分子机制和因素。
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引用次数: 0
Recurrent hepatocellular carcinoma is associated with the enrichment of MYC targets gene sets, elevated high confidence deleterious mutations and alternative splicing of DDB2 and BRCA1 transcripts 复发性肝细胞癌与 MYC 目标基因组的富集、高置信度的有害突变以及 DDB2 和 BRCA1 转录本的替代剪接有关。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2024-10-30 DOI: 10.1016/j.advms.2024.10.004
Oğuzhan Karaosmanoğlu

Purpose

Recurrence is the main cause of hepatocellular carcinoma (HCC) related deaths. Underlying recurrence biology can be better understood by comparative analysis of the complete set of transcripts between recurrent and non-recurrent HCC. In this study, transcriptomic data (GSE56545) from 21 male patients diagnosed with either recurrent or non-recurrent HCC were reanalyzed to identify deregulated pathways, somatic mutations, fusion transcripts, alternative splicing events, and the immune context in recurrent HCC.

Materials and methods

DESeq2 was used for differential expression analysis, Mutect2 for somatic mutation analysis, Arriba and STAR-Fusion for fusion transcript analysis, and rMATs for alternative splicing analysis.

Results

The results revealed that MYC targets gene sets (Hallmark_MYC_targets_V1 and Hallmark_MYC_targets_V2) were significantly enriched in recurrent HCC. Among the MYC targets, CBX3, NOP56, CDK4, NPM1, MCM5, MCM4 and PA2G4 upregulation was significantly associated with poor survival. Somatic mutation analysis demonstrated that the numbers of high confidence deleterious mutations were significantly increased in recurrent HCC. Alternative splicing-mediated production of non-functional DDB2 and oncogenic BRCA1 D11q were discovered in recurrent HCC. Finally, CD8+ T-cells were significantly decreased in recurrent HCC.

Conclusions

These results indicated that the enrichment of MYC targets gene sets is one of the most critical factors that leads to the development of recurrent HCC. In addition, elevated deleterious mutation numbers and alternative spliced DDB2 and BRCA1 isoforms have been identified as prominent contributors to increasing genomic instability in male patients with recurrent HCC.
目的:复发是肝细胞癌(HCC)相关死亡的主要原因。通过比较分析复发和非复发 HCC 的全套转录本,可以更好地了解复发的生物学基础。本研究重新分析了21例诊断为复发性或非复发性HCC男性患者的转录组数据(GSE56545),以确定复发性HCC中的失调通路、体细胞突变、融合转录本、替代剪接事件和免疫环境:DESeq2用于差异表达分析,Mutect2用于体细胞突变分析,Arriba和STAR-Fusion用于融合转录本分析,rMATs用于替代剪接分析:结果发现,MYC靶基因集(Hallmark_MYC_targets_V1和Hallmark_MYC_targets_V2)在复发性HCC中明显富集。在MYC靶点中,CBX3、NOP56、CDK4、NPM1、MCM5、MCM4和PA2G4的上调与生存率低明显相关。体细胞突变分析表明,高置信度的有害突变数量在复发性 HCC 中明显增加。在复发性 HCC 中发现了替代剪接介导的无功能 DDB2 和致癌 BRCA1 D11q 的产生。最后,CD8+ T细胞在复发性HCC中明显减少:这些结果表明,MYC 靶基因组的富集是导致复发性 HCC 发生的最关键因素之一。结论:这些结果表明,MYC靶基因集的富集是导致复发性HCC发生的最关键因素之一,此外,有害突变数量的增加以及DDB2和BRCA1同工酶的替代剪接也是导致男性复发性HCC患者基因组不稳定性增加的主要原因。
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引用次数: 0
Inhibition of TRPM7 by glutathione decreases oxidant and apoptotic action of cisplatin through the downregulation of Ca2+ and Zn2+ in glioblastoma cells 谷胱甘肽抑制TRPM7可通过下调胶质母细胞瘤细胞中Ca2+和Zn2+来降低顺铂的氧化和凋亡作用。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2025-01-30 DOI: 10.1016/j.advms.2025.01.008
Kemal Ertilav , Mustafa Nazıroğlu

Purpose

Cisplatin (CiSP)-mediated stimulation of TRPM7 may induce oxidant and apoptotic activities through the upregulation of Ca2+, apoptosis, and reactive oxygen species (ROS) in glioblastoma (DBTRG-05MG) cells, whereas inhibition of TRPM7 by the antioxidant glutathione (GSH) may reduce the observed increases in DBTRG-05MG. The aim of the study was to examine how TRPM7 activation stimulates DBTRG-05MG cell death but also how it inhibits the effects of TRPM7 antagonists (GSH and carvacrol, CRV) via altering ROS toxicity and apoptosis.

Method

In the DBTRG-05MG, 5 groups were established: control, GSH (10 ​mM for 2 ​h), CiSP (25 ​μM for 24 ​h), CiSP ​+ ​GSH, and CiSP ​+ ​CRV (200 ​μM for 24 ​h).

Results

The amounts of cytosolic free Ca2+ were further increased in the CiSP group by the stimulation of TRPM7 (naltriben), even though the GSH and CRV treatments caused them to decrease in the cells. The amounts of mitochondrial membrane dysfunction, ROS, death cell, apoptosis, free zinc ion, and caspase-3, -8, and -9 in the cells were higher in the CiSP than in the control and GSH, although their amounts were lower in the CiSP ​+ ​GSH and CiSP ​+ ​CRV than in the CiSP only. The CiSP-induced decreases in cell viability and GSH concentrations were increased by GSH incubation.

Conclusions

The stimulation of TRPM7 increased the anticancer action of CiSP, although its inhibition decreased the amount of CiSP-induced oxidative stress and DBTRG-05MG deaths through the treatment of GSH and CRV. TRPM7 stimulation could be considered a potential tumor killer channel through oxidative glioblastoma damage caused by CiSP.
目的:顺铂(CiSP)介导的TRPM7刺激可能通过上调胶质母细胞瘤(DBTRG-05MG)细胞中的Ca2+、凋亡和活性氧(ROS)来诱导氧化和凋亡活性,而抗氧化剂谷胱甘肽(GSH)抑制TRPM7可能会减少DBTRG-05MG的增加。该研究的目的是研究TRPM7激活如何刺激DBTRG-05MG细胞死亡,以及它如何通过改变ROS毒性和细胞凋亡来抑制TRPM7拮抗剂(GSH和carvacrol, CRV)的作用。方法:在DBTRG-05MG中建立5组:对照组、GSH (10 mM, 2h)、CiSP (25 μM, 24h)、CiSP+GSH、CiSP+CRV (200 mM, 24h)。结果:CiSP组胞质游离Ca2+的数量在TRPM7(钠triben)的刺激下进一步增加,尽管GSH和CRV处理导致它们在细胞中减少。细胞中线粒体膜超极化、ROS、死亡细胞、凋亡、游离锌离子和caspase-3、-8、-9的数量在CiSP中高于对照和GSH,但CiSP+GSH和CiSP+CRV的数量低于CiSP。GSH孵育后,cisp诱导的细胞活力和GSH浓度下降。结论:刺激TRPM7可增强CiSP的抗癌作用,但其抑制作用通过GSH和CRV的治疗降低了CiSP诱导的氧化应激和DBTRG-05MG死亡的数量。通过CiSP引起的氧化性胶质母细胞瘤损伤,TRPM7刺激可被认为是一个潜在的肿瘤杀伤通道。
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引用次数: 0
High levels of soluble neuropilin −1 in critically ill multiple trauma/surgical patients 多发性创伤/外科危重患者高水平可溶性神经匹林-1
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2025-02-26 DOI: 10.1016/j.advms.2025.02.007
Charikleia S. Vrettou, Chrysi Keskinidou , Alice G. Vassiliou , Georgios Poupouzas, Edison Jahaj, Vassilios Issaris, Evangelia Theodorou, Asimenia Halioti, Vassiliki Giannopoulou, Nikolaos S. Lotsios, Anastasia Kotanidou, Ioanna Dimopoulou

Purpose

Critically ill trauma/surgical patients may experience excessive inflammation, immune and coagulation dysregulation, leading to multiple organ failure (MOF), carrying high mortality rates. Neuropilin-1 (NRP-1) and its soluble isoform (sNRP-1) are implicated in immune response regulation, inflammation, and vascular permeability. This study aimed to investigate the possible role of sNRP-1 in trauma/surgical patients in the intensive care unit (ICU).

Patients and methods

This prospective observational study was conducted in a 31-bed ICU and included 81 patients, 43 of whom were trauma/surgical patients and 38 of whom were matched medical patients, comprising the control group. sNRP-1, interleukin (IL)-6, IL-8, and IL-10 levels were measured on admission to the ICU (within 48 ​h).

Results

Trauma/surgical patients had significantly higher sNRP-1 (p ​= ​0.027), IL-6, IL-8, and IL-10 levels (p ​< ​0.05) compared to medical patients. In the entire cohort, sNRP-1 correlated positively with the international normalized ratio (INR) (p ​= ​0.017), the activated partial thromboplastin time (p ​= ​0.026), fibrinogen (p ​= ​0.027), alanine aminotransferase (p ​= ​0.024), and C-reactive protein (p ​= ​0.004). Moreover, sNRP-1 correlated negatively with total protein (p ​= ​0.035), albumin (p ​= ​0.005), and platelets (p ​= ​0.033).

Conclusion

sNRP-1 levels were elevated in critically ill trauma/surgical patients compared to matched medical ICU patients. Further research is needed to elucidate the exact role of sNRP-1 in these patients' pathophysiology.
目的:创伤/外科危重患者可能出现过度炎症、免疫和凝血功能失调,导致多器官功能衰竭(MOF),死亡率高。神经匹林-1 (NRP-1)及其可溶性异构体(sNRP-1)参与免疫反应调节、炎症和血管通透性。本研究旨在探讨sNRP-1在重症监护病房(ICU)创伤/外科患者中的可能作用。患者和方法:本前瞻性观察性研究在31张床位的ICU进行,纳入81例患者,其中43例为创伤/外科患者,38例为匹配的内科患者,构成对照组。入院时(48小时内)检测sNRP-1、白细胞介素(IL)-6、IL-8、IL-10水平。结果:创伤/外科患者sNRP-1、IL-6、IL-8、IL-10水平显著升高(p = 0.027)。结论:创伤/外科危重症患者sNRP-1水平高于匹配的内科ICU患者。sNRP-1在这些患者病理生理中的确切作用有待进一步研究阐明。
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引用次数: 0
Combination therapy of placenta-derived mesenchymal stem cells and artificial dermal scaffold promotes full-thickness skin defects vascularization in rat animal model 胎盘间充质干细胞与人工真皮支架的联合疗法促进了大鼠动物模型全厚皮肤缺损血管的形成。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2024-10-17 DOI: 10.1016/j.advms.2024.10.002
Kun Zhang , Dongjie Xiao , Fang Li , Guodong Song , Guobao Huang , Yunshan Wang , Hua Liu

Purpose

Recently, placenta-derived mesenchymal stem cells (PMSCs) have garnered considerable attention in tissue repair and regeneration. The present study was conducted to evaluate the effect of PMSCs on artificial dermal scaffold (ADS) angiogenesis and their combination therapy on wound closure.

Material and methods

Herein, the growth and survival of PMSCs in ADS were explored. CCK8, scratch wound, and tubule formation assays were employed to investigate the effects of ADS conditioned medium (CM) and ADS-PMSCs CM on human umbilical vein endothelial cells (HUVECs). The effect of ADS-PMSCs on full-thickness skin defects healing was evaluated based on a rat model. Wound healing progresses was meticulously investigated through hematoxylin and eosin (HE), Masson's trichrome, and immunohistochemical staining analyses.

Results

In vitro cell culture results demonstrated the proliferation of PMSCs in ADS. The ADS-PMSCs CM notably stimulated the proliferation, migration, and tube formation of HUVECs compared to the ADS CM group. In the rat full-thickness skin defect model, the ADS-PMSCs treatment significantly accelerated the vascularization area of ADS after 2 weeks. Besides, HE and Masson's trichrome staining results indicated that ADS-PMSCs treatment significantly enhanced fibroblast proliferation and collagen fiber 2 weeks after surgical procedure. Compared to the ADS group, collagen fiber arrangement was thicker in the ADS-PMSCs group. Immunohistochemical staining reinforced this finding, illustrating a substantial increase in CD31 expression within the ADS-PMSCs group.

Conclusions

The results suggest that the combination of ADS with PMSCs accelerates ADS vascularization by fostering granulation tissue development and boosting the formation of new blood vessels.
目的:最近,胎盘间充质干细胞(PMSCs)在组织修复和再生方面受到广泛关注。本研究旨在评估胎盘间充质干细胞对人工真皮支架(ADS)血管生成的影响及其对伤口闭合的联合治疗作用。采用 CCK8、划痕伤口和小管形成试验研究 ADS 条件培养基(CM)和 ADS-PMSCs CM 对人脐静脉内皮细胞(HUVECs)的影响。以大鼠模型为基础,评估了 ADS-PMSCs 对全厚皮肤缺损愈合的影响。通过苏木精和伊红(HE)、马森三色染色和免疫组化染色分析,对伤口愈合进展进行了细致的研究:体外细胞培养结果表明,PMSCs 在 ADS 中增殖。与 ADS CM 组相比,ADS-PMSCs CM 组明显刺激了 HUVECs 的增殖、迁移和管形成。在大鼠全厚皮肤缺损模型中,ADS-PMSCs 治疗 2 周后明显加快了 ADS 的血管化面积。此外,HE 和 Masson's trichrome 染色结果表明,ADS-PMSCs 治疗能明显促进成纤维细胞的增殖和胶原纤维的形成。与 ADS 组相比,ADS-PMSCs 组的胶原纤维排列更粗。免疫组化染色证实了这一发现,表明 ADS-PMSCs 组 CD31 表达量大幅增加:结论:研究结果表明,ADS 与 PMSCs 的结合可促进肉芽组织的发育和新血管的形成,从而加速 ADS 的血管化。
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引用次数: 0
Investigation of circulating natural autoantibodies against ANXA1 and MYC as potential biomarkers in hepatocellular carcinoma 抗ANXA1和MYC的循环天然自身抗体作为肝细胞癌潜在生物标志物的研究。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2025-01-15 DOI: 10.1016/j.advms.2025.01.004
Jiaxin Wang , Siqi Liu , Xuan Zhang

Purpose

In this study, we examined novel autoantibodies targeting tumor-associated antigens (TAAs) as biomarkers for clinical assessment of hepatocellular carcinoma (HCC) in a Chinese population.

Methods and methods

A total of 119 patients with HCC and 130 healthy control (HC) volunteers who were age and gender matched were enrolled. The levels of circulating IgG antibodies were detected using an enzyme-linked immunosorbent test (ELISA) developed in-house with linear peptide antigens derived from Annexin A1(ANXA1) and proto-oncogene protein (MYC). The significant level was set at P ​< ​0.025 as two tests were performed.

Results

In comparison to the HC group, plasma level of ANXA1 autoantibodies was significantly elevated in HCC patients (t ​= ​−3.174, P ​= ​0.002) but the change of plasma MYC autoantibody levels failed to reach the significance level (P ​> ​0.025). There was a significant increase in these two plasma IgG autoantibodies in male HCC patients (ANXA1: t ​= ​−3.590, P ​< ​0.001; MYC: t ​= ​−2.706, P ​= ​0.007). Pearson correlation analysis demonstrated that both anti-ANXA1 and anti-MYC IgG levels had a positive correlation with BCLC staging (both P ​< ​0.025) but a negative correlation with plasma albumin (Alb) (both P ​< ​0.025). The area under the ROC curve (AUC) values were 0.613 for anti-ANXA1 IgG assay and 0.567 for anti-MYC IgG assay. The anti-ANAXA1 IgG assay showed a high sensitivity of 31.4 ​% against the specificity of 90.0 ​% for detection of BCLC stages C ​+ ​D.

Conclusions

Plasma anti-ANXA1 and anti-MYC autoantibodies are likely to serve as a potential biomarker for clinical assessment of HCC prognosis, particularly in male patients.
目的:在这项研究中,我们检测了靶向肿瘤相关抗原(TAAs)的新型自身抗体作为中国人群肝细胞癌(HCC)临床评估的生物标志物。方法和方法:共纳入119例HCC患者和130例年龄和性别匹配的健康对照(HC)志愿者。采用酶联免疫吸附试验(ELISA)检测循环IgG抗体水平,该试验采用源自膜联蛋白A1(ANXA1)和原癌基因蛋白(MYC)的线性肽抗原。结果:HCC患者血浆中ANXA1自身抗体水平较HC组显著升高(t=-3.174, P = 0.002),而MYC自身抗体水平变化未达到显著水平(P = 0.025)。在男性HCC患者中,这两种血浆IgG自身抗体显著升高(ANXA1: t=-3.590, p)。结论:血浆抗ANXA1和抗myc自身抗体可能作为HCC临床预后评估的潜在生物标志物,尤其是在男性患者中。
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引用次数: 0
Targeting treatment resistance in cervical cancer: A new avenue for senolytic therapies 针对宫颈癌的耐药性:老年溶解疗法的新途径
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2024-11-15 DOI: 10.1016/j.advms.2024.11.001
Madré Meyer , Carla Fourie , Haynes van der Merwe , Hennie Botha , Anna-Mart Engelbrecht
Cervical cancer poses a significant global health challenge, particularly impacting women in economically developing nations. This disparity stems from a combination of factors, including inadequate screening infrastructure and resource limitations. However, the foremost contributor is the widespread lack of awareness and limited accessibility to Human Papillomavirus (HPV) vaccination, which is a key preventative measure against cervical cancer development. Despite advancements in cervical cancer prevention, treatment resistance remains a major hurdle in achieving improved patient outcomes. Cellular senescence, specifically the senescence-associated secretory phenotype (SASP) and its bidirectional relationship with the immune system, has been implicated in resistance to conventional cervical cancer chemotherapy treatments. The exact mechanisms by which this state of growth arrest and the associated changes in immune regulation contribute to cervical cancer progression and the associated drug resistance are not entirely understood. This underscores the necessity for innovative strategies to address the prevalence of treatment-resistant cervical cancer, with one promising avenue being the utilisation of senolytics. Senolytics are agents that have promising efficacy in clearing senescent cells from tumour tissues, however neither the utilisation of senolytics for addressing senescence-induced treatment resistance nor the potential integration of immunotherapy as senolytic agents in cervical cancer treatment has been explored to date. This review provides a concise overview of the mechanisms underlying senescence induction and the pivotal role of the immune system in this process. Additionally, it explores various senolytic approaches that hold significant potential for advancing cervical cancer research.
宫颈癌对全球健康构成了重大挑战,尤其影响到经济发展中国家的妇女。造成这种差异的因素很多,包括筛查基础设施不足和资源限制。然而,最主要的原因是人们普遍缺乏对人类乳头瘤病毒(HPV)疫苗接种的认识,而且接种机会有限,而接种HPV疫苗是预防宫颈癌发展的关键措施。尽管在宫颈癌预防方面取得了进展,但治疗耐药性仍是改善患者预后的一大障碍。细胞衰老,特别是衰老相关分泌表型(SASP)及其与免疫系统的双向关系,已被认为与传统宫颈癌化疗的耐药性有关。这种生长停滞状态和相关的免疫调节变化导致宫颈癌进展和相关耐药性的确切机制尚不完全清楚。这凸显了采用创新策略来解决宫颈癌耐药问题的必要性,其中一个很有前景的方法就是使用抗衰老剂。衰老剂是一种在清除肿瘤组织中衰老细胞方面具有良好疗效的药物,但迄今为止,还没有人探索过利用衰老剂来解决衰老引起的耐药性问题,也没有人探索过将免疫疗法作为衰老剂整合到宫颈癌治疗中的可能性。本综述简要概述了衰老诱导的基本机制以及免疫系统在这一过程中的关键作用。此外,它还探讨了在推进宫颈癌研究方面具有巨大潜力的各种衰老溶解方法。
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引用次数: 0
Caloric restriction mimetics: Pinostilbene versus resveratrol regarding SIRT1 and SIRT6 interaction 热量限制模拟:蒎烯与白藜芦醇对SIRT1和SIRT6相互作用的影响。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2024-11-29 DOI: 10.1016/j.advms.2024.11.002
Anca Ungurianu , Denisa Margină , Dragoș P. Mihai , Alina C. Nicolae , Cristina M. Drăgoi , Daniela Grădinaru , Anca Zanfirescu

Purpose

Caloric restriction (CR), the permanent or periodic reduction of caloric intake, is a dietary strategy that promotes longevity and healthspan, yielding multiple beneficial effects, such as improved insulin sensitivity and mitochondrial function, decreased body weight, and mitigation of cardiometabolic risk factors. The purpose of our study was the in silico and in vitro assessment of the effects exerted by pinostilbene on SIRT1 and SIRT6 compared to those of resveratrol, a known activator of these enzymes.

Materials and methods

Molecular docking was carried out to determine the interactions with SIRT1 and SIRT6 and, further, the effect of pinostilbene on their activity was tested in vitro to evaluate if it parallels resveratrol's effects regarding SIRT activation.

Results

Molecular docking indicates that resveratrol and pinostilbene bind similarly to SIRT6, while pinostilbene may be able to activate SIRT1 more efficiently than resveratrol. In vitro activity assays showed that while both resveratrol and pinostilbene activate SIRT1 and SIRT6, the concentration-dependent effects differ. For resveratrol, a greater effect was observed at the medium concentration (25 ​μM), whereas pinostilbene showed a more pronounced activation at the lowest concentration (5 ​μM).

Conclusions

Our results offer a glimpse into the structural features and interactions of pinostilbene and resveratrol with SIRT1 and SIRT6, contributing to understanding their potential roles in various cellular processes regulated by SIRT.
目的:热量限制(CR),即永久或定期减少热量摄入,是一种促进长寿和健康的饮食策略,可产生多种有益效果,如改善胰岛素敏感性和线粒体功能,降低体重,减轻心脏代谢危险因素。我们研究的目的是在体内和体外评估pinostilbene对SIRT1和SIRT6的影响,并与白藜芦醇(一种已知的这些酶的激活剂)进行比较。材料与方法:通过分子对接确定与SIRT1和SIRT6的相互作用,并进一步在体外测试蒎烯对其活性的影响,以评估其是否与白藜芦醇对SIRT激活的作用相似。结果:分子对接表明,白藜芦醇和蒎烯与SIRT6的结合相似,而蒎烯可能比白藜芦醇更有效地激活SIRT1。体外活性分析表明,尽管白藜芦醇和蒎烯都能激活SIRT1和SIRT6,但其浓度依赖性不同。对于白藜芦醇,在中等浓度(25 μM)下的活化效果更明显,而蒎烯在最低浓度(5 μM)下的活化效果更明显。结论:我们的研究结果揭示了蒎烯二苯乙烯和白藜芦醇与SIRT1和SIRT6的结构特征和相互作用,有助于了解它们在SIRT调控的各种细胞过程中的潜在作用。
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引用次数: 0
Knockout of histone deacetylase 8 gene in breast cancer cells may alter the expression pattern of the signaling molecules 在乳腺癌细胞中敲除组蛋白去乙酰化酶 8 基因可能会改变信号分子的表达模式。
IF 2.5 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL Pub Date : 2025-03-01 Epub Date: 2024-10-20 DOI: 10.1016/j.advms.2024.10.003
Nahid Bahrami , Mohammad Abdi

Purpose

Breast cancer (BC) is the most common cancer diagnosed in the world and it is also the main leading cause of cancer deaths in women. Change in epigenetic mechanisms promotes BC initiation and progression. Histone deacetylase 8 (HDAC8) was found to act as a potential oncogene in different malignancies. For better understanding of the HDAC8 function in BC development, we investigated the effect of HDAC8 deletion on the expression of genes involved in signaling pathways.

Materials and methods

In this study, CRISPR technology was used to knockout the HDAC8 gene in MDA-MB-468, MDA-MB-231 and MCF-7 ​cell lines. For this purpose, two gRNAs were designed and cloned into the PX459 vector. The gRNA-containing vectors were transfected into the BC cell lines and then the effect of this deletion on the expression of genes involved in signaling pathway was determined using quantitative real-time PCR (qRT-PCR).

Results

Analysis of qRT-PCR results showed a reduction in the expression of studied genes in BC cell lines after deletion of the HDAC8 gene compared to untreated controls. Although this decline was not significant for FGF2 and FGFR1 genes, however the mTOR, IGF1R, INSR, VEGFA and VEGFR2 genes showed statistically significant reduction in the studied BC cell lines. In addition, the down-regulation of PDGFC and PDGFRA genes were only significant in the TNBC cell lines.

Conclusion

Overall, our study showed that HDAC8 can exert its oncogenic effects by altering the expression level of molecules involved in some signaling pathways, and inhibiting HDAC8 can revert these effects.
目的:乳腺癌(BC)是世界上最常见的癌症,也是女性癌症死亡的主要原因。表观遗传机制的变化会促进乳腺癌的发生和发展。组蛋白去乙酰化酶 8(HDAC8)被发现在不同的恶性肿瘤中充当潜在的致癌基因。为了更好地了解HDAC8在BC发病中的功能,我们研究了HDAC8缺失对信号通路相关基因表达的影响:本研究采用CRISPR技术在MDA-MB-468、MDA-MB-231和MCF-7细胞系中敲除HDAC8基因。为此,研究人员设计了两个 gRNA,并将其克隆到 PX459 载体中。将含 gRNA 的载体转染到 BC 细胞系中,然后使用实时定量 PCR(qRT-PCR)测定这种缺失对信号通路相关基因表达的影响:qRT-PCR结果分析表明,与未处理的对照组相比,HDAC8基因缺失后,BC细胞系中研究基因的表达量有所下降。虽然FGF2和FGFR1基因的表达量下降不明显,但在所研究的BC细胞系中,mTOR、IGF1R、INSR、VEGFA和VEGFR2基因的表达量出现了统计学意义上的显著下降。此外,PDGFC 和 PDGFRA 基因的下调仅在 TNBC 细胞系中明显:总之,我们的研究表明,HDAC8可以通过改变参与某些信号通路的分子的表达水平来发挥其致癌作用,而抑制HDAC8可以逆转这些作用。
{"title":"Knockout of histone deacetylase 8 gene in breast cancer cells may alter the expression pattern of the signaling molecules","authors":"Nahid Bahrami ,&nbsp;Mohammad Abdi","doi":"10.1016/j.advms.2024.10.003","DOIUrl":"10.1016/j.advms.2024.10.003","url":null,"abstract":"<div><h3>Purpose</h3><div>Breast cancer (BC) is the most common cancer diagnosed in the world and it is also the main leading cause of cancer deaths in women. Change in epigenetic mechanisms promotes BC initiation and progression. Histone deacetylase 8 (<em>HDAC8</em>) was found to act as a potential oncogene in different malignancies. For better understanding of the HDAC8 function in BC development, we investigated the effect of <em>HDAC8</em> deletion on the expression of genes involved in signaling pathways.</div></div><div><h3>Materials and methods</h3><div>In this study, CRISPR technology was used to knockout the <em>HDAC8</em> gene in MDA-MB-468, MDA-MB-231 and MCF-7 ​cell lines. For this purpose, two gRNAs were designed and cloned into the PX459 vector. The gRNA-containing vectors were transfected into the BC cell lines and then the effect of this deletion on the expression of genes involved in signaling pathway was determined using quantitative real-time PCR (qRT-PCR).</div></div><div><h3>Results</h3><div>Analysis of qRT-PCR results showed a reduction in the expression of studied genes in BC cell lines after deletion of the <em>HDAC8</em> gene compared to untreated controls. Although this decline was not significant for <em>FGF2</em> and <em>FGFR1</em> genes, however the <em>mTOR</em>, <em>IGF1R</em>, <em>INSR</em>, <em>VEGFA</em> and <em>VEGFR2</em> genes showed statistically significant reduction in the studied BC cell lines. In addition, the down-regulation of <em>PDGFC</em> and <em>PDGFRA</em> genes were only significant in the TNBC cell lines.</div></div><div><h3>Conclusion</h3><div>Overall, our study showed that <em>HDAC8</em> can exert its oncogenic effects by altering the expression level of molecules involved in some signaling pathways, and inhibiting <em>HDAC8</em> can revert these effects.</div></div>","PeriodicalId":7347,"journal":{"name":"Advances in medical sciences","volume":"70 1","pages":"Pages 27-32"},"PeriodicalIF":2.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142492805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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Advances in medical sciences
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