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Targeting stroma and tumor,silencing galectin 1 treats orthotopic mouse hepatocellular carcinoma

Acta Pharmaceutica Sinica B 2024年第1期14卷 292-303页

作者： tahereh setayesh Ying Hu Farzam Vaziri Xin Chen Jinping Lai Dongguang Wei Yu-Jui Yvonne Wan Department of Medical Pathology and Laboratory Medicine University of CaliforniaDavisSacramentoCA 95817USA Cancer Biology Program the University of Hawaii Cancer CenterHonoluluHI 96813USA Department of Pathology and Laboratory Medicine Kaiser Permanente Sacramento Medical CenterSacramentoCA 95825USA

This study examines inhibiting galectin 1(Gal1)as a treatment option for hepatocellular carcinoma(HCC).Gal1 has immunosuppressive and cancer-promoting roles.Our data showed that Gal1 was highly expressed in human and mouse HCC.The levels of Gal1 positively correlated with the stages of human HCC and negatively with survival.The roles of Gal1 in HCC were studied using overexpression(OE)or silencing using Igals1 siRNA delivered by AAV9.Prior to HCC initiation induced by RAS and AKT mutations,lgals1-OE and silencing had opposite impacts on tumor load.The treatment effect of lgals1 siRNAwas further demonstrated by intersecting HCC at different time points when the tumor load had already reached 9%or even 42%of the body weight.Comparing spatial transcriptomic profiles of Gal1 silenced and OE HCC,inhibiting matrix formation and recognition of foreign antigen in CD45t cell-enriched areas located at tumor-margin likely contributed to the anti-HCC effects of Gal1 silencing.Within the tumors,silencing Gal1 inhibited translational initiation,elongation,and termination.Furthermore,Gal1 silencing increased immune cells as well as expanded cytotoxic T cells within the tumor,and the anti-HCC effect of lgals1 siRNAwas CD8-dependent.Overall,Gal1 silencing has a promising potential for HCC treatment.

关键词： Liver Hepatocellular carcinoma Carbohydrate-binding lectin Galectin 1 Extracellular matrix Translation Spatial transcriptomics Tumor-margin

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The contributions of bacteria metabolites to the development of hepatic encephalopathy

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Liver Research 2023年第4期7卷 296-303页

作者： Miranda Claire Gilbert tahereh setayesh Yu-Jui Yvonne Wan Department of Pathology and Laboratory Medicine University of CaliforniaDavisSacramentoCAUSA

Over 20%of mortality during acute liver failure is associated with the development of hepatic encephalopathy(HE).Thus,HE is a complication of acute liver failure with a broad spectrum of neuropsychiatric abnormalities ranging from subclinical alterations to coma.HE is caused by the diversion of portal blood into systemic circulation through portosystemic collateral vessels.Thus,the brain is exposed to intestinal-derived toxic substances.Moreover,the strategies to prevent advancement and improve the prognosis of such a liver-brain disease rely on intestinal microbial modulation.This is supported by the findings that antibiotics such as rifaximin and laxative lactulose can alleviate hepatic cirrhosis and/or prevent HE.Together,the significance of the gut-liver-brain axis in human health warrants attention.This review paper focuses on the roles of bacteria metabolites,mainly ammonia and bile acids(BAs)as well as BA receptors in HE.The literature search conducted for this review included searches for phrases such as BA receptors,BAs,ammonia,farnesoid X receptor(FXR),G protein-coupled bile acid receptor 1(GPBAR1 or TGR5),sphingosine-1-phosphate receptor 2(S1PR2),and cirrhosis in conjunction with the phrase hepatic encephalopathy and portosystemic encephalopathy.PubMed,as well as Google Scholar,was the search engines used to find relevant publications.

关键词： Liver Gut-liver-brain axis Bile acids(BAs) Bile acid(BA)receptors Farnesoid X receptor(FXR) Takeda G protein-coupled receptor 5(TGR5) Sphingosine-1-phosphate receptor 2 (S1PR2) Brain

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Overexpression of Galectin-1 and Galectin-3 in hepatocellular carcinoma

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Liver Research 2020年第4期4卷 173-179页

作者： tahereh setayesh Steven D.Colquhoun Yu-Jui Yvonne Wan Department of Pathology and Laboratory Medicine University of California DavisSacramentoCAUSA Department of Surgery University of California DavisSacramentoCAUSA

Galectins(Gals)are evolutionarily conserved proteins that bind to b-galactoside containing glycans.Abnormal expression of Gals is associated with the development,progression,and metastasis of different types of cancer.Among the 11 Gals identified in humans,the roles of Gal-1 and Gal-3 have been extensively investigated in various tumors.Here,we summarize the roles of overly expressed Gal-1 and Gal-3 in the pathogenesis of hepatocellular carcinoma(HCC).The overexpression of Gal-1 and Gal-3 correlates with tumor growth,HCC cell migration and invasion,tumor aggressiveness,metastasis,and poor prognosis.A potentially promising future treatment strategy for HCC may include the combination of immunotherapy with Gal-1 inhibition.Additional research is warranted to investigate targeting Gal-1 and Gal-3 for HCC treatment.

关键词： Galectin-1(Gal-1) Galectin-3(Gal-3) Liver cancer Hepatocellular carcinoma(HCC) Fibrosis Cirrhosis Non-alcoholic steatohepatitis(NASH) Metastasis Epithelial-mesenchymal transition(EMT)

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