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Correction: Macrophages direct cancer cells through a LOXL2-mediated metastatic cascade in pancreatic ductal adenocarcinoma 更正:巨噬细胞通过 LOXL2 介导的胰腺导管腺癌转移级联引导癌细胞
IF 24.5 1区 医学
Gut Pub Date : 2024-10-01 DOI: 10.1136/gutjnl-2021-325564corr1
BMJ Publishing Group Ltd and British Society of Gastroenterology
{"title":"Correction: Macrophages direct cancer cells through a LOXL2-mediated metastatic cascade in pancreatic ductal adenocarcinoma","authors":"BMJ Publishing Group Ltd and British Society of Gastroenterology","doi":"10.1136/gutjnl-2021-325564corr1","DOIUrl":"https://doi.org/10.1136/gutjnl-2021-325564corr1","url":null,"abstract":"Alonso-Nocelo M, Ruiz-Cañas L, Sancho P, et al . Macrophages direct cancer cells through a LOXL2-mediated metastatic cascade in pancreatic ductal adenocarcinoma. Gut 2023;72:345-59. The …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142158817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Statins for MAFLD/MASH: another brick in the wall while waiting for final answers
IF 24.5 1区 医学
Gut Pub Date : 2024-09-18 DOI: 10.1136/gutjnl-2024-333426
Jaime Bosch
{"title":"Statins for MAFLD/MASH: another brick in the wall while waiting for final answers","authors":"Jaime Bosch","doi":"10.1136/gutjnl-2024-333426","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333426","url":null,"abstract":"I read with pleasure the paper by Zhou et al 1 analysing the long-term clinical outcomes and changes in liver elastography associated with statin usage in patients with metabolic-associated steatotic liver disease (MASLD). This is a population-based study of 7988 patients selected from a total of 17 849 MASLD patients seen in 16 centres in Europe, America and Asia and who had also transient elastography measurements of liver stiffness (LSM). The final cohort included patients >18 years that had at least two LSM, a controlled attenuation parameter denoting steatosis (over ≥248 dB/m), a prolonged follow-up (over 1 year, median 4.6 years), and no other cause of liver disease or excessive alcohol intake. Usage of statins was defined as the consistent use of statins on most days for more than 1 month within a year, which occurred in 3233 patients (40.4%). Patients were considered to have compensated advanced chronic liver disease (cACLD) if the first LSM was >10 kPa, which occurred in 17.2%. The primary outcome was a composite of all-cause death and liver-related events (LREs) (developing cirrhosis decompensation, hepatocellular carcinoma (HCC) or liver-related mortality). In addition, a secondary outcome was the change in LSM, categorised as progression, regression or stable based on observing or not changes in LSM of at least 20% or crossing the threshold of 10 kPa. The authors did Cox regression analysis for examining the association between statin …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-risk varices in patients with Child-Pugh-Turcotte B and C: consider band ligation with carvedilol for preventing first variceal bleeding, especially in patients with MASLD-associated cirrhosis
IF 24.5 1区 医学
Gut Pub Date : 2024-09-18 DOI: 10.1136/gutjnl-2024-333263
Alexander Zipprich, Ruben Hernaez
{"title":"High-risk varices in patients with Child-Pugh-Turcotte B and C: consider band ligation with carvedilol for preventing first variceal bleeding, especially in patients with MASLD-associated cirrhosis","authors":"Alexander Zipprich, Ruben Hernaez","doi":"10.1136/gutjnl-2024-333263","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333263","url":null,"abstract":"International guidelines recommend that primary prophylaxis of varices in patients with cirrhosis be either non-selective beta-blockers (NSBBs) or variceal band ligation (VBL). These recommendations are based on studies that include both compensated and decompensated patients. Notably, the European Association for the Study of the Liver 2018 guidelines recognise a gap in the efficacy of NSBB therapy for patients with decompensated cirrhosis.1 The Baveno guidelines recommend preventing further decompensation in patients with ascites and high-risk varices (large varices >5 mm, or with red spot signs, or Child-Pugh-Turcotte (CPT-C)), with traditional NSBBs or carvedilol preferred over VBL.2 The American Association for the Study of Liver Diseases guidelines support NSBBs or VBL for large high-risk varices.3 However, a recent systematic review with network meta-analysis indicated that VBL is associated with higher risks of complications and mortality compared with NSBBs.4 The supporting evidence for these recommendations is limited, and it remains unclear whether the same treatment options or combination therapies are more effective in decompensated cirrhosis (CPT B or C). In Gut , Tevethia et al report the results of the CAVARLY trial.5 The study compared carvedilol, VBL and a combination of both for preventing the first variceal bleed in patients with CPT- B/C cirrhosis (up to C-13) and high-risk oesophageal varices (>5 mm or <5 mm with red signs). The authors excluded patients with contraindications to carvedilol, hepatocellular carcinoma, portal vein thrombosis, platelet count <30 000 per µL, those on therapeutic anticoagulation, or with previous VBL or transjugular intrahepatic portosystemic shunt (TIPS). They enrolled 330 patients (110 for each arm) …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Commentary on: the management of patients with gastric intestinal metaplasia
IF 24.5 1区 医学
Gut Pub Date : 2024-09-18 DOI: 10.1136/gutjnl-2024-333684
David Y Graham, Yi-Chia Lee
{"title":"Commentary on: the management of patients with gastric intestinal metaplasia","authors":"David Y Graham, Yi-Chia Lee","doi":"10.1136/gutjnl-2024-333684","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333684","url":null,"abstract":"Recently, Gut published a review of guidelines for the management of gastric intestinal metaplasia (GIM) with the goal of promoting harmonisation of the guidelines regarding indications for endoscopic screening for gastric cancer and GIM detection/staging, metrics for high-quality endoscopy and non-endoscopic interventions for gastric cancer prevention in patients with GIM.1 GIM is not a disease per se but rather is a reparative response to gastric mucosal injury that may be present, at least temporarily, as part of healing such as of an ulcer.2 Clinically, widespread GIM is best considered a manifestation of healing of another disease, typically Helicobacter pylori infection or autoimmune gastritis. When present in autoimmune gastritis, GIM has no malignant potential and is potentially completely reversible.3 In contrast, when associated with chronic H. pylori infection, GIM is typically permanent and, at most, minimally reversible.4 The underlying H. pylori -induced inflammation is carcinogenic. H. pylori -related GIM is a manifestation of the duration, extent and severity of an H. pylori infection which, in turn, is related to the risk of gastric cancer. Because GIM is easily recognised and reflects the extent and severity of the infection, it is a valuable surrogate for the risk of developing gastric cancer. This has given GIM a role in the determination of an individual’s cancer risk. However, because GIM is neither a disease nor a cause of cancer, eradication of gastric cancer should focus on the eradication of the cause, that is, H. pylori infections. The population …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cold EMR, hot EMR or ESD for large benign adenoma: not one size fits all 治疗大型良性腺瘤的冷电磁辐射、热电磁辐射或静电放电疗法:不能一刀切
IF 24.5 1区 医学
Gut Pub Date : 2024-09-17 DOI: 10.1136/gutjnl-2024-333490
Veronique Van der Voort, Cesare Hassan, Alessandro Repici, Romain Legros, Mathieu Pioche, Jérémie Jacques
{"title":"Cold EMR, hot EMR or ESD for large benign adenoma: not one size fits all","authors":"Veronique Van der Voort, Cesare Hassan, Alessandro Repici, Romain Legros, Mathieu Pioche, Jérémie Jacques","doi":"10.1136/gutjnl-2024-333490","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333490","url":null,"abstract":"We read with great interest the study by O’Sullivan et al ,1 examining the technical and procedural outcomes of Cold Endoscopic Mucosal Resection (C-EMR) versus Hot EMR (H-EMR). We congratulate the authors for conducting this important research, which adds valuable information to the body of knowledge guiding our choice of the optimal treatment modality for large, benign colorectal polyps. However, we would like to address several points. First, readers should be aware that this study focuses on a highly selected group of large non-pedunculated colon polyps (LNPCPs) as only 20% of referred lesions during the study period of 4 years met the inclusion criteria, being flat lesions of 15–50 mm, without macronodule, depressed area or optical suspicion of submucosal invasive cancer (SMIC). Despite this selection, 2.2% unrecognised SMIC was found, …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic reprogramming by mutant GNAS creates an actionable dependency in intraductal papillary mucinous neoplasms of the pancreas 突变型 GNAS 的代谢重编程在胰腺导管内乳头状粘液瘤中产生了可操作的依赖性
IF 24.5 1区 医学
Gut Pub Date : 2024-09-13 DOI: 10.1136/gutjnl-2024-332412
Yuki Makino, Kimal I Rajapakshe, Benson Chellakkan Selvanesan, Takashi Okumura, Kenjiro Date, Prasanta Dutta, Lotfi Abou-Elkacem, Akiko Sagara, Jimin Min, Marta Sans, Nathaniel Yee, Megan J Siemann, Jose Enriquez, Paytience Smith, Pratip Bhattacharya, Michael Kim, Merve Dede, Traver Hart, Anirban Maitra, Fredrik Ivar Thege
{"title":"Metabolic reprogramming by mutant GNAS creates an actionable dependency in intraductal papillary mucinous neoplasms of the pancreas","authors":"Yuki Makino, Kimal I Rajapakshe, Benson Chellakkan Selvanesan, Takashi Okumura, Kenjiro Date, Prasanta Dutta, Lotfi Abou-Elkacem, Akiko Sagara, Jimin Min, Marta Sans, Nathaniel Yee, Megan J Siemann, Jose Enriquez, Paytience Smith, Pratip Bhattacharya, Michael Kim, Merve Dede, Traver Hart, Anirban Maitra, Fredrik Ivar Thege","doi":"10.1136/gutjnl-2024-332412","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-332412","url":null,"abstract":"Background Oncogenic ‘hotspot’ mutations of KRAS and GNAS are two major driver alterations in intraductal papillary mucinous neoplasms (IPMNs), which are bona fide precursors to pancreatic ductal adenocarcinoma. We previously reported that pancreas-specific Kras G12D and Gnas R201C co-expression in p48Cre; KrasLSL-G12D; Rosa26LSL-rtTA; Tg (TetO-GnasR201C) mice ( ‘Kras;Gnas ’ mice) caused development of cystic lesions recapitulating IPMNs. Objective We aim to unveil the consequences of mutant Gnas R201C expression on phenotype, transcriptomic profile and genomic dependencies. Design We performed multimodal transcriptional profiling (bulk RNA sequencing, single-cell RNA sequencing and spatial transcriptomics) in the ‘Kras;Gnas ’ autochthonous model and tumour-derived cell lines ( Kras;Gnas cells), where Gnas R201C expression is inducible. A genome-wide CRISPR/ Cas 9 screen was conducted to identify potential vulnerabilities in KrasG12D;GnasR201C co-expressing cells. Results Induction of Gnas R201C—and resulting G(s)alpha signalling—leads to the emergence of a gene signature of gastric (pyloric type) metaplasia in pancreatic neoplastic epithelial cells. CRISPR screening identified the synthetic essentiality of glycolysis-related genes Gpi1 and Slc2a1 in Kras G12D; Gnas R201C co-expressing cells. Real-time metabolic analyses in Kras;Gnas cells and autochthonous Kras;Gnas model confirmed enhanced glycolysis on Gnas R201C induction. Induction of Gnas R201C made Kras G12D expressing cells more dependent on glycolysis for their survival. Protein kinase A-dependent phosphorylation of the glycolytic intermediate enzyme 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) was a driver of increased glycolysis on Gnas R201C induction. Conclusion Multiple orthogonal approaches demonstrate that Kras G12D and Gnas R201C co-expression results in a gene signature of gastric pyloric metaplasia and glycolytic dependency during IPMN pathogenesis. The observed metabolic reprogramming may provide a potential target for therapeutics and interception of IPMNs. Data are available in a public, open access repository. Bulk RNA-seq, single-cell RNA-seq and spatial transcriptomic datasets generated in this study have been deposited in the NCBI Gene Expression Omnibus (GEO) database under accession number GSE275406.","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142231345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-term hepatitis B surface antigen response after finite treatment of ARC-520 or JNJ-3989 ARC-520 或 JNJ-3989 有限治疗后的长期乙型肝炎表面抗原反应
IF 24.5 1区 医学
Gut Pub Date : 2024-09-12 DOI: 10.1136/gutjnl-2024-333026
Lung Yi Mak, Christine I Wooddell, Oliver Lenz, Thomas Schluep, James Hamilton, Heather L Davis, Xianhua Mao, Wai-Kay Seto, Michael Biermer, Man-Fung Yuen
{"title":"Long-term hepatitis B surface antigen response after finite treatment of ARC-520 or JNJ-3989","authors":"Lung Yi Mak, Christine I Wooddell, Oliver Lenz, Thomas Schluep, James Hamilton, Heather L Davis, Xianhua Mao, Wai-Kay Seto, Michael Biermer, Man-Fung Yuen","doi":"10.1136/gutjnl-2024-333026","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333026","url":null,"abstract":"Background and aims RNA interference has been extensively explored in patients with chronic hepatitis B (CHB) infection. We aimed to characterise the long-term efficacy of small interfering RNA (siRNA) on hepatitis B surface antigen (HBsAg) suppression. Methods We prospectively followed up participants with CHB who received siRNA, either ARC-520 or JNJ-73763989 (JNJ-3989), in combination with nucleoside analogue (NUC) in our centre. Participants enrolled included 15 receiving 4 monthly injections of ARC-520, 38 receiving 3 injections of JNJ-3989 at 1, 2 or 4 weekly intervals and 5 receiving placebo in previous clinical trials. Serial blood sampling was performed according to the original protocols and on completion every 24 weeks until last follow-up (LFU) with mean duration of 52.5 months. Results Among the 53 NUC+siRNA-treated participants (mean age 46.8, baseline HBsAg 3.08 log, 83% previously on NUC, 34% hepatitis B e antigen+), the proportion of patients achieving HBsAg seroclearance or <100 IU/mL at LFU was 1.9% and 32.1%, respectively, compared with 0% and 0% for placebo. Among siRNA-recipients, 48.5% and 5.0% of those with HBsAg <100 IU/mL and >100 IU/mL at nadir or ≤24 weeks from last dose could maintain or achieve HBsAg <100 IU/mL at LFU, respectively. Compared with placebo recipients, siRNA-recipients demonstrated faster overall annual decline of HBsAg (0.08 vs 0.21 log IU/mL/year) contributed predominantly by changes in the first year. Age was negatively correlated with HBsAg reduction at LFU (r=−0.427, p=0.001). Conclusion Short-duration siRNA treatment suppressed HBsAg expression with a prolonged effect for up to 6 years in some participants. All data relevant to the study are included in the article or uploaded as online supplemental information.","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142174962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeting TL1A and DR3: the new frontier of anti-cytokine therapy in IBD 靶向 TL1A 和 DR3:IBD 抗细胞因子疗法的新领域
IF 24.5 1区 医学
Gut Pub Date : 2024-09-11 DOI: 10.1136/gutjnl-2024-332504
Giorgos Bamias, Paola Menghini, Theresa T Pizarro, Fabio Cominelli
{"title":"Targeting TL1A and DR3: the new frontier of anti-cytokine therapy in IBD","authors":"Giorgos Bamias, Paola Menghini, Theresa T Pizarro, Fabio Cominelli","doi":"10.1136/gutjnl-2024-332504","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-332504","url":null,"abstract":"TNF-like cytokine 1A (TL1A) and its functional receptor, death-domain receptor 3 (DR3), are members of the TNF and TNFR superfamilies, respectively, with recognised roles in regulating innate and adaptive immune responses; additional existence of a decoy receptor, DcR3, indicates a tightly regulated cytokine system. The significance of TL1A:DR3 signalling in the pathogenesis of inflammatory bowel disease (IBD) is supported by several converging lines of evidence.To provide a comprehensive understanding of what is currently known regarding the TL1A/DR3 system in the context of IBD.TL1A and DR3 are expressed by cellular subsets with important roles for the initiation and maintenance of intestinal inflammation, serving as potent universal costimulators of effector immune responses, indicating their participation in the pathogenesis of IBD. Recent evidence also supports a homoeostatic role for TL1A:DR3 via regulation of Tregs and innate lymphoid cells. TL1A and DR3 are also expressed by stromal cells and may contribute to inflammation-induced or inflammation-independent intestinal fibrogenesis. Finally, discovery of genetic polymorphisms with functional consequences may allow for patient stratification, including differential responses to TL1A-targeted therapeutics.TL1A:DR3 signalling plays a central and multifaceted role in the immunological pathways that underlie intestinal inflammation, such as that observed in IBD. Such evidence provides the foundation for developing pharmaceutical approaches targeting this ligand-receptor pair in IBD.","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extending inflamed-class signature to predict immune checkpoint inhibitor-based combination therapy in hepatocellular carcinoma 扩展炎症类特征,预测肝细胞癌中基于免疫检查点抑制剂的联合疗法
IF 24.5 1区 医学
Gut Pub Date : 2024-09-11 DOI: 10.1136/gutjnl-2024-333375
Wenhua You, Chupeng Hu, Mengya Zhao, Yuhan Zhang, Jinying Lu, Yedi Huang, Ling Li, Yun Chen
{"title":"Extending inflamed-class signature to predict immune checkpoint inhibitor-based combination therapy in hepatocellular carcinoma","authors":"Wenhua You, Chupeng Hu, Mengya Zhao, Yuhan Zhang, Jinying Lu, Yedi Huang, Ling Li, Yun Chen","doi":"10.1136/gutjnl-2024-333375","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-333375","url":null,"abstract":"Recently, we were intrigued by a recent study by Montironi et al ,1 in which they discovered that an inflamed subclass in hepatocellular carcinoma (HCC) patients is associated with a response to immunotherapy. The authors used a 20-gene signature to distinguish these patients and further found different immune infiltration between inflamed and non-inflamed class at the bulk level. We commend the authors for undertaking this study, which holds significant clinical implications. We also observed that Li et al 2 have validated the predictive value of inflamed class in two additional RNA-seq datasets from patients who received anti-PD1 therapy. However, the use of combination immunotherapy, which includes dual immune checkpoint inhibitors or is combined with anti-VEGF agents, has become a growing trend in HCC.3–6 Here, we first performed unsupervised clustering on the RNA-seq data from 289 patients enrolled in the GO30140 Ph1b and IMbrave150 PhIII trials who received a combination of anti-PD-L1 and anti-VEGF therapy7 (figure 1). The results indicated that the subclass (C1), which exhibited high expression of genes associated with B/plasma cells and fibroblasts, had a higher inflamed-class score and better therapeutic efficacy (figure 1B–D). The performance of inflamed-class gene signature in predicting combination therapy response showed anarea under …","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of PRMT5 as a therapeutic target in cholangiocarcinoma 确定 PRMT5 为胆管癌的治疗靶点
IF 24.5 1区 医学
Gut Pub Date : 2024-09-11 DOI: 10.1136/gutjnl-2024-332998
Jasmin Elurbide, Leticia Colyn, Maria U Latasa, Iker Uriarte, Stefano Mariani, Amaya Lopez-Pascual, Emiliana Valbuena, Borja Castello-Uribe, Robert Arnes-Benito, Elena Adan-Villaescusa, Luz A Martinez-Perez, Mikel Azkargorta, Felix Elortza, Hanghang Wu, Marcin Krawczyk, Kai Markus Schneider, Bruno Sangro, Luca Aldrighetti, Francesca Ratti, Andrea Casadei Gardini, Jose J G Marin, Irene Amat, Jesus M Urman, Maria Arechederra, Maria Luz Martinez-Chantar, Christian Trautwein, Meritxell Huch, Francisco Javier Cubero, Carmen Berasain, Maite G Fernandez-Barrena, Matias A Avila
{"title":"Identification of PRMT5 as a therapeutic target in cholangiocarcinoma","authors":"Jasmin Elurbide, Leticia Colyn, Maria U Latasa, Iker Uriarte, Stefano Mariani, Amaya Lopez-Pascual, Emiliana Valbuena, Borja Castello-Uribe, Robert Arnes-Benito, Elena Adan-Villaescusa, Luz A Martinez-Perez, Mikel Azkargorta, Felix Elortza, Hanghang Wu, Marcin Krawczyk, Kai Markus Schneider, Bruno Sangro, Luca Aldrighetti, Francesca Ratti, Andrea Casadei Gardini, Jose J G Marin, Irene Amat, Jesus M Urman, Maria Arechederra, Maria Luz Martinez-Chantar, Christian Trautwein, Meritxell Huch, Francisco Javier Cubero, Carmen Berasain, Maite G Fernandez-Barrena, Matias A Avila","doi":"10.1136/gutjnl-2024-332998","DOIUrl":"https://doi.org/10.1136/gutjnl-2024-332998","url":null,"abstract":"Background Cholangiocarcinoma (CCA) is a very difficult-to-treat cancer. Chemotherapies are little effective and response to immune checkpoint inhibitors is limited. Therefore, new therapeutic strategies need to be identified. Objective We characterised the enzyme protein arginine-methyltransferase 5 (PRMT5) as a novel therapeutic target in CCA. Design We evaluated the expression of PRMT5, its functional partner MEP50 and methylthioadenosine phosphorylase (MTAP)—an enzyme that modulates the sensitivity of PRMT5 to pharmacological inhibitors—in human CCA tissues. PRMT5-targeting drugs, currently tested in clinical trials for other malignancies, were assessed in human CCA cell lines and organoids, as well as in two immunocompetent CCA mouse models. Transcriptomic, proteomic and functional analyses were performed to explore the underlying antitumoural mechanisms. Results PRMT5 and MEP50 proteins were correlatively overexpressed in most CCA tissues. MTAP was absent in 25% of intrahepatic CCA. PRMT5-targeting drugs markedly inhibited CCA cell proliferation, synergising with cisplatin and gemcitabine and hindered the growth of cholangiocarcinoma organoids. PRMT5 inhibition blunted the expression of oncogenic genes involved in chromatin remodelling and DNA repair, consistently inducing the formation of RNA loops and promoting DNA damage. Treatment with PRMT5-targeting drugs significantly restrained the growth of experimental CCA without adverse effects and concomitantly induced the recruitment of CD4 and CD8 T cells to shrinking tumourous lesions. Conclusion PRMT5 and MEP50 are frequently upregulated in human CCA, and PRMT5-targeting drugs have significant antitumoural efficacy in clinically relevant CCA models. Our findings support the evaluation of PRMT5 inhibitors in clinical trials, including their combination with cytotoxic and immune therapies. Data are available on reasonable request.","PeriodicalId":12825,"journal":{"name":"Gut","volume":null,"pages":null},"PeriodicalIF":24.5,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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