663. Targeting MYC effector functions in pancreatic cancer by inhibiting the ATPase RUVBL1/2.
作者: Markus Vogt.;Nevenka Dudvarski Stankovic.;Yiliam Cruz Garcia.;Julia Hofstetter.;Katharina Schneider.;Filiz Kuybu.;Theresa Hauck.;Bikash Adhikari.;Anton Hamann.;Yamila Rocca.;Lara Grysczyk.;Benedikt Martin.;Anneli Gebhardt-Wolf.;Armin Wiegering.;Markus Diefenbacher.;Georg Gasteiger.;Stefan Knapp.;Dieter Saur.;Martin Eilers.;Mathias Rosenfeldt.;Florian Erhard.;Seychelle M Vos.;Elmar Wolf.
来源: Gut. 2024年73卷9期1509-1528页
The hallmark oncogene MYC drives the progression of most tumours, but direct inhibition of MYC by a small-molecule drug has not reached clinical testing. MYC is a transcription factor that depends on several binding partners to function. We therefore explored the possibility of targeting MYC via its interactome in pancreatic ductal adenocarcinoma (PDAC).
664. Human enteric nervous system progenitor transplantation improves functional responses in Hirschsprung disease patient-derived tissue.
作者: Benjamin Jevans.;Fay Cooper.;Yuliia Fatieieva.;Antigoni Gogolou.;Yi-Ning Kang.;Restuadi Restuadi.;Dale Moulding.;Pieter Vanden Berghe.;Igor Adameyko.;Nikhil Thapar.;Peter W Andrews.;Paolo De Coppi.;Anestis Tsakiridis.;Conor J McCann.
来源: Gut. 2024年73卷9期1441-1453页
Hirschsprung disease (HSCR) is a severe congenital disorder affecting 1:5000 live births. HSCR results from the failure of enteric nervous system (ENS) progenitors to fully colonise the gastrointestinal tract during embryonic development. This leads to aganglionosis in the distal bowel, resulting in disrupted motor activity and impaired peristalsis. Currently, the only viable treatment option is surgical resection of the aganglionic bowel. However, patients frequently suffer debilitating, lifelong symptoms, with multiple surgical procedures often necessary. Hence, alternative treatment options are crucial. An attractive strategy involves the transplantation of ENS progenitors generated from human pluripotent stem cells (hPSCs).
665. 'Unusual' HCV genotype subtypes: origin, distribution, sensitivity to direct-acting antiviral drugs and behaviour on antiviral treatment and retreatment.
The high genetic diversity of hepatitis C virus (HCV) has led to the emergence of eight genotypes and a large number of subtypes in limited geographical areas. Currently approved pangenotypic DAA regimens have been designed and developed to be effective against the most common subtypes (1a, 1b, 2a, 2b, 2c, 3a, 4a, 5a and 6a). However, large populations living in Africa and Asia, or who have migrated from these regions to industrialised countries, are infected with 'unusual', non-epidemic HCV subtypes, including some that are inherently resistant to currently available direct-acting antiviral (DAA) drugs due to the presence of natural polymorphisms at resistance-associated substitution positions. In this review article, we describe the origin and subsequent global spread of HCV genotypes and subtypes, the current global distribution of common and unusual HCV subtypes, the polymorphisms naturally present in the genome sequences of unusual HCV subtypes that may confer inherently reduced susceptibility to DAA drugs and the available data on the response of unusual HCV subtypes to first-line HCV therapy and retreatment. We conclude that the problem of unusual HCV subtypes that are inherently resistant to DAAs and its threat to the global efforts to eliminate viral hepatitis are largely underestimated and warrant vigorous action.
666. Association between primary hypothyroidism and metabolic dysfunction-associated steatotic liver disease: an updated meta-analysis.
作者: Alessandro Mantovani.;Alessandro Csermely.;Josh Bilson.;Niccolò Borella.;Scoccia Enrico.;Barbara Pecoraro.;Emigela Shtembari.;Riccardo Morandin.;Stergios A Polyzos.;Luca Valenti.;Herbert Tilg.;Christopher D Byrne.;Giovanni Targher.
来源: Gut. 2024年73卷9期1554-1561页
Epidemiological studies have reported an association between primary hypothyroidism and metabolic dysfunction-associated steatotic liver disease (MASLD). However, the magnitude of the risk and whether this risk changes with the severity of MASLD remains uncertain. We performed a meta-analysis of observational studies to quantify the magnitude of the association between primary hypothyroidism and the risk of MASLD.
667. Intravital imaging: dynamic insights into liver immunity in health and disease.
Inflammation is a critical component of most acute and chronic liver diseases. The liver is a unique immunological organ with a dense vascular network, leading to intense crosstalk between tissue-resident immune cells, passenger leucocytes and parenchymal cells. During acute and chronic liver diseases, the multifaceted immune response is involved in disease promoting and repair mechanisms, while upholding core liver immune functions. In recent years, single-cell technologies have unravelled a previously unknown heterogeneity of immune cells, reshaping the complexity of the hepatic immune response. However, inflammation is a dynamic biological process, encompassing various immune cells, orchestrated in temporal and spatial dimensions, and driven by multiorgan signals. Intravital microscopy (IVM) has emerged as a powerful tool to investigate immunity by visualising the dynamic interplay between different immune cells and their surroundings within a near-natural environment. In this review, we summarise the experimental considerations to perform IVM and highlight recent technological developments. Furthermore, we outline the unique contributions of IVM to our understanding of liver immunity. Through the lens of liver disease, we discuss novel immune-mediated disease mechanisms uncovered by imaging-based studies.
668. Neutrophil extracellular traps activate hepatic stellate cells and monocytes via NLRP3 sensing in alcohol-induced acceleration of MASH fibrosis.
作者: Mrigya Babuta.;Caroline Morel.;Marcelle de Carvalho Ribeiro.;Charles Calenda.;Martí Ortega-Ribera.;Prashanth Thevkar Nagesh.;Christopher Copeland.;Yuan Zhuang.;Yanbo Wang.;Yeonhee Cho.;Radhika Joshi.;Viliam Brezani.;Danielle Hawryluk.;Aditi Ashish Datta.;Jeeval Mehta.;Imad Nasser.;Gyongyi Szabo.
来源: Gut. 2024年73卷11期1854-1869页
Alcohol use in metabolic dysfunction-associated steatohepatitis (MASH) is associated with an increased risk of fibrosis and liver-related death. Here, we aimed to identify a mechanism through which repeated alcohol binges exacerbate liver injury in a high fat-cholesterol-sugar diet (MASH diet)-induced model of MASH.
669. Puerarin alleviates atherosclerosis via the inhibition of Prevotella copri and its trimethylamine production.
来源: Gut. 2024年73卷12期1934-1943页
Puerarin (PU) is a natural compound that exhibits limited oral bioavailability but has shown promise in the treatment of atherosclerosis (AS). However, the precise mechanisms underlying its therapeutic effects remain incompletely understood. This study aimed to investigate the effects of PU and its mechanisms in mitigating AS in both mice and humans.
670. Heavy arch: from inflammatory bowel diseases to metabolic disorders.
Metabolic disorders and inflammatory bowel diseases (IBD) have captured the globe during Westernisation of lifestyle and related dietary habits over the last decades. Both disease entities are characterised by complex and heterogeneous clinical spectra linked to distinct symptoms and organ systems which, on a first glimpse, do not have many commonalities in clinical practice. However, experimental studies indicate a common backbone of inflammatory mechanisms in metabolic diseases and gut inflammation, and emerging clinical evidence suggests an intricate interplay between metabolic disorders and IBD.
673. The Peptidoglycan Recognition Protein 1 confers immune evasive properties on pancreatic cancer stem cells.
作者: Juan Carlos López-Gil.;Susana García-Silva.;Laura Ruiz-Cañas.;Diego Navarro.;Adrián Palencia-Campos.;Antonio Giráldez-Trujillo.;Julie Earl.;Jorge Dorado.;Gonzalo Gómez-López.;Ana Monfort-Vengut.;Sonia Alcalá.;Matthias M Gaida.;Sandra García-Mulero.;Pablo Cabezas-Sáinz.;Sandra Batres-Ramos.;Emma Barreto.;Patricia Sánchez-Tomero.;Mireia Vallespinós.;Leah Ambler.;Meng-Lay Lin.;Alexandra Aicher.;Ana García García de Paredes.;Carolina de la Pinta.;Alfonso Sanjuanbenito.;Ignacio Ruz-Caracuel.;Mercedes Rodríguez-Garrote.;Carmen Guerra.;Alfredo Carrato.;Guillermo de Cárcer.;Laura Sánchez.;César Nombela-Arrieta.;Elisa Espinet.;Víctor Javier Sanchez-Arevalo Lobo.;Christopher Heeschen.;Bruno Sainz.
来源: Gut. 2024年73卷9期1489-1508页
Pancreatic ductal adenocarcinoma (PDAC) has limited therapeutic options, particularly with immune checkpoint inhibitors. Highly chemoresistant 'stem-like' cells, known as cancer stem cells (CSCs), are implicated in PDAC aggressiveness. Thus, comprehending how this subset of cells evades the immune system is crucial for advancing novel therapies.
675. Targeting squalene epoxidase restores anti-PD-1 efficacy in metabolic dysfunction-associated steatohepatitis-induced hepatocellular carcinoma.
作者: Jun Wen.;Xiang Zhang.;Chi Chun Wong.;Yating Zhang.;Yasi Pan.;Yunfei Zhou.;Alvin Ho-Kwan Cheung.;Yali Liu.;Fenfen Ji.;Xing Kang.;Dabin Liu.;Jun Yu.
来源: Gut. 2024年73卷12期2023-2036页
Squalene epoxidase (SQLE) promotes metabolic dysfunction-associated steatohepatitis-associated hepatocellular carcinoma (MASH-HCC), but its role in modulating the tumour immune microenvironment in MASH-HCC remains unclear.
676. Human milk oligosaccharide 2'-fucosyllactose protects against high-fat diet-induced obesity by changing intestinal mucus production, composition and degradation linked to changes in gut microbiota and faecal proteome profiles in mice.
作者: Paola Paone.;Dimitris Latousakis.;Romano Terrasi.;Didier Vertommen.;Ching Jian.;Valentina Borlandelli.;Francesco Suriano.;Malin E V Johansson.;Anthony Puel.;Caroline Bouzin.;Nathalie M Delzenne.;Anne Salonen.;Nathalie Juge.;Bogdan I Florea.;Giulio G Muccioli.;Herman Overkleeft.;Matthias Van Hul.;Patrice D Cani.
来源: Gut. 2024年73卷10期1632-1649页
To decipher the mechanisms by which the major human milk oligosaccharide (HMO), 2'-fucosyllactose (2'FL), can affect body weight and fat mass gain on high-fat diet (HFD) feeding in mice. We wanted to elucidate whether 2'FL metabolic effects are linked with changes in intestinal mucus production and secretion, mucin glycosylation and degradation, as well as with the modulation of the gut microbiota, faecal proteome and endocannabinoid (eCB) system.
677. Novel IL-4/HB-EGF-dependent crosstalk between eosinophils and macrophages controls liver regeneration after ischaemia and reperfusion injury.
作者: Yang Yang.;Long Xu.;Constance Atkins.;Lily Kuhlman.;Jie Zhao.;Jong-Min Jeong.;Yankai Wen.;Nicolas Moreno.;Kang Ho Kim.;Yu A An.;Fenfen Wang.;Steve Bynon.;Vincenzo Villani.;Bin Gao.;Frank Brombacher.;Raymond Harris.;Holger K Eltzschig.;Elizabeth Jacobsen.;Cynthia Ju.
来源: Gut. 2024年73卷9期1543-1553页
Previous studies indicate that eosinophils are recruited into the allograft following orthotopic liver transplantation and protect from ischaemia reperfusion (IR) injury. In the current studies, we aim to explore whether their protective function could outlast during liver repair.
678. Landscape of the gut mycobiome dynamics during pregnancy and its relationship with host metabolism and pregnancy health.
作者: Yuanqing Fu.;Wanglong Gou.;Ping Wu.;Yuwei Lai.;Xinxiu Liang.;Ke Zhang.;Menglei Shuai.;Jun Tang.;Zelei Miao.;Jieteng Chen.;Jiaying Yuan.;Bin Zhao.;Yunhaonan Yang.;Xiaojuan Liu.;Yayi Hu.;An Pan.;Xiong-Fei Pan.;Ju-Sheng Zheng.
来源: Gut. 2024年73卷8期1302-1312页
The remodelling of gut mycobiome (ie, fungi) during pregnancy and its potential influence on host metabolism and pregnancy health remains largely unexplored. Here, we aim to examine the characteristics of gut fungi in pregnant women, and reveal the associations between gut mycobiome, host metabolome and pregnancy health.
680. Comprehensive single-cell analysis deciphered microenvironmental dynamics and immune regulator olfactomedin 4 in pathogenesis of gallbladder cancer.
作者: Huisi He.;Shuzhen Chen.;Yong Yu.;Zhecai Fan.;Youwen Qian.;Yaping Dong.;Yuting Song.;Caiming Zhong.;Xiaojuan Sun.;Qiqi Cao.;Shiyao Li.;Weihan Huang.;Wenxin Li.;Mingzhu Zhuang.;Jinxian Yang.;Xianming Wang.;Jiaqian Wang.;Dongfang Wu.;Hongyang Wang.;Wen Wen.
来源: Gut. 2024年73卷9期1529-1542页
Elucidating complex ecosystems and molecular features of gallbladder cancer (GBC) and benign gallbladder diseases is pivotal to proactive cancer prevention and optimal therapeutic intervention.
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