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Takahashi Y, Dungubat E, Kusano H, Fukusato T. Pathology and Pathogenesis of Metabolic Dysfunction-Associated Steatotic Liver Disease-Associated Hepatic Tumors. Biomedicines 2023; 11:2761. [PMID: 37893134 PMCID: PMC10604511 DOI: 10.3390/biomedicines11102761] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is characterized by excessive fat accumulation in the livers of patients without a history of alcohol abuse. It is classified as either simple steatosis (nonalcoholic fatty liver) or nonalcoholic steatohepatitis (NASH), which can progress to liver cirrhosis and hepatocellular carcinoma (HCC). Recently, it was suggested that the terms "metabolic dysfunction-associated steatotic liver disease (MASLD)" and "metabolic dysfunction-associated steatohepatitis (MASH)" should replace the terms "nonalcoholic fatty liver disease (NAFLD)" and "nonalcoholic steatohepatitis (NASH)", respectively, with small changes in the definitions. MASLD, a hepatic manifestation of metabolic syndrome, is rapidly increasing in incidence globally, and is becoming an increasingly important cause of HCC. Steatohepatitic HCC, a histological variant of HCC, is characterized by its morphological features resembling non-neoplastic steatohepatitis and is closely associated with underlying steatohepatitis and metabolic syndrome. Variations in genes including patatin-like phospholipase domain-containing protein 3 (PNPLA3), transmembrane 6 superfamily 2 (TM6SF2), and membrane-bound O-acyltransferase domain-containing protein 7 (MBOAT7) are associated with the natural history of MASLD, including HCC development. The mechanisms of HCC development in MASLD have not been fully elucidated; however, various factors, including lipotoxicity, inflammation, reactive oxygen species, insulin resistance, and alterations in the gut bacterial flora, are important in the pathogenesis of MASLD-associated HCC. Obesity and MASLD are also recognized as risk factors for hepatocellular adenomas, and recent meta-analyses have shown an association between MASLD and intrahepatic cholangiocarcinoma. In this review, we outline the pathology and pathogenesis of MASLD-associated liver tumors.
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Affiliation(s)
- Yoshihisa Takahashi
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita 286-8686, Japan; (E.D.); (H.K.)
| | - Erdenetsogt Dungubat
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita 286-8686, Japan; (E.D.); (H.K.)
- Department of Pathology, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia
| | - Hiroyuki Kusano
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita 286-8686, Japan; (E.D.); (H.K.)
| | - Toshio Fukusato
- General Medical Education and Research Center, Teikyo University, Tokyo 173-8605, Japan;
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Li L, Li G, Chen M, Cai R. Astragaloside IV enhances the sensibility of lung adenocarcinoma cells to bevacizumab by inhibiting autophagy. Drug Dev Res 2021; 83:461-469. [PMID: 34499759 DOI: 10.1002/ddr.21878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 12/24/2022]
Abstract
Bevacizumab (BV) has an inhibitory effect on tumor growth including lung adenocarcinoma. However, its efficacy is greatly affected by drug resistance. Astragaloside IV (AST-IV) is effective in combination with other drugs is effective to treat cancer. This study aimed to investigate the effect of AST-IV on enhancing the sensibility of lung adenocarcinoma cells to BV. A549 cells were treated by different concentrations of BV and AST-IV. Cell viability, cell cycle, and apoptosis were detected by thiazolyl blue tetrazolium bromide (MTT) and flow cytometry, respectively. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and western blotting were performed to detect the expression levels of autophagy- and apoptosis-related proteins, protein kinase B (AKT), and mammalian target of rapamycin (mTOR). The results showed that BV or AST-IV could inhibit the viability and promote the apoptosis of A549 cells in a concentration-dependent manner. Moreover, BV or AST-IV inhibited Bcl-2 expression and increased the expressions of Bax and Cleaved caspase-3, and promoted apoptosis. BV and AST-IV in combination acted synergistically on viability and apoptosis of A549 cells. However, BV alone down-regulated P62 expression, LC3I/LC3II level, the number of cells arrested at S phase and the phosphorylation levels of AKT and mTOR, but upregulated the number of cells arrested at G0/G1 phase and Beclin1 expression, whereas AST-IV alone could reverse the effect of BV on autophagy-related proteins, the phosphorylation levels of AKT and mTOR. This paper demonstrates that AST-IV enhances the effect of BV on inhibiting proliferation and promoting apoptosis of lung adenocarcinoma cells through inhibiting autophagy pathway.
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Affiliation(s)
- Liang Li
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, China
| | - Gao Li
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, China
| | - Minbiao Chen
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, China
| | - Renzhong Cai
- Department of Thoracic Surgery, Hainan General Hospital, Haikou, China
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Zhang C, Yang M. The Emerging Factors and Treatment Options for NAFLD-Related Hepatocellular Carcinoma. Cancers (Basel) 2021; 13:cancers13153740. [PMID: 34359642 PMCID: PMC8345138 DOI: 10.3390/cancers13153740] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/22/2021] [Accepted: 07/24/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, and it is an increasing factor in the cause of hepatocellular carcinoma (HCC). The incidence of NAFLD has increased in recent decades, accompanied by an increase in the prevalence of other metabolic diseases, such as obesity and type 2 diabetes. However, current treatment options are limited. Both genetic factors and non-genetic factors impact the initiation and progression of NAFLD-related HCC. The early diagnosis of liver cancer predicts curative treatment and longer survival. Some key molecules play pivotal roles in the initiation and progression of NAFLD-related HCC, which can be targeted to impede HCC development. In this review, we summarize some key factors and important molecules in NAFLD-related HCC development, the latest progress in HCC diagnosis and treatment options, and some current clinical trials for NAFLD treatment. Abstract Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, followed by cholangiocarcinoma (CCA). HCC is the third most common cause of cancer death worldwide, and its incidence is rising, associated with an increased prevalence of obesity and nonalcoholic fatty liver disease (NAFLD). However, current treatment options are limited. Genetic factors and epigenetic factors, influenced by age and environment, significantly impact the initiation and progression of NAFLD-related HCC. In addition, both transcriptional factors and post-transcriptional modification are critically important for the development of HCC in the fatty liver under inflammatory and fibrotic conditions. The early diagnosis of liver cancer predicts curative treatment and longer survival. However, clinical HCC cases are commonly found in a very late stage due to the asymptomatic nature of the early stage of NAFLD-related HCC. The development of diagnostic methods and novel biomarkers, as well as the combined evaluation algorithm and artificial intelligence, support the early and precise diagnosis of NAFLD-related HCC, and timely monitoring during its progression. Treatment options for HCC and NAFLD-related HCC include immunotherapy, CAR T cell therapy, peptide treatment, bariatric surgery, anti-fibrotic treatment, and so on. Overall, the incidence of NAFLD-related HCC is increasing, and a better understanding of the underlying mechanism implicated in the progression of NAFLD-related HCC is essential for improving treatment and prognosis.
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Affiliation(s)
- Chunye Zhang
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA;
| | - Ming Yang
- Department of Surgery, University of Missouri, Columbia, MO 65211, USA
- Correspondence:
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Association of TM6SF2 rs58542926 T/C gene polymorphism with hepatocellular carcinoma: a meta-analysis. BMC Cancer 2019; 19:1128. [PMID: 31752753 PMCID: PMC6868855 DOI: 10.1186/s12885-019-6173-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/20/2019] [Indexed: 02/06/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the sixth-most common malignancy worldwide. Multiple previous studies have assessed the relationship between TM6SF2 gene polymorphism and the risk of developing HCC, with discrepant conclusions reached. To assess the association of TM6SF2 rs58542926 T/C gene polymorphism with liver cancer, we performed the current meta-analysis. Methods This study queried the MEDLINE, PubMed, EMBASE, and CENTRAL databases from inception to April 2019. Case-control studies assessing the relationship between TM6SF2 rs5854292 locus polymorphism and liver cancer were selected according to inclusion and exclusion criteria. The Stata 12.0 software was employed for data analysis. Results A total of 5 articles, encompassing 6873 patients, met inclusion criteria and were included in the meta-analysis. Statistical analysis showed that the TM6SF2 gene polymorphism was significantly associated with liver cancer in the allele contrast, dominant, recessive and over dominant models (T vs C, OR = 1.621, 95%CI 1.379–1.905; CT + TT vs CC. OR = 1.541, 95%CI 1.351–1.758; TT vs CT + CC, OR = 2.897, 95%CI 1.690–4.966; CC + TT vs TC, OR = 0.693, 95%CI 0.576–0.834). The Egger’s test revealed no significant publication bias. Conclusion The present findings suggest a significant association of TM6SF2 gene polymorphism with HCC risk in the entire population studied.
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Du S, Liao S, Liu S, Xin Y. TM6SF2 E167K Variant Overexpression Promotes Expression of Inflammatory Cytokines in the HCC Cell Line HEPA 1-6. J Clin Transl Hepatol 2019; 7:27-31. [PMID: 30944816 PMCID: PMC6441636 DOI: 10.14218/jcth.2018.00055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/20/2018] [Accepted: 12/27/2018] [Indexed: 12/27/2022] Open
Abstract
Background and Aims: Accumulated evidence has shown that chronic liver inflammation is one of the main risks of hepatocellular carcinoma (HCC), and E167K variant of the transmembrane 6 superfamily member 2 (TM6SF2) plays an important role in the progression of chronic liver diseases and HCC. The aim of this study was to explore effects of the TM6SF2 E167K variant on expression of the inflammatory cytokines TNF-α, IL-2, IL-6 and IL-8 in the HCC cell line HEPA 1-6. Methods: HEPA 1-6 cells were infected with lentivirus containing either the TM6SF2 E167K variant or TM6SF2 wild-type, or control plasmids. Quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting were conducted to analyze the expression of the inflammatory cytokines TNF-α, IL-2, IL-6 and IL-8. A t-test was used for statistical analysis. Results: Compared with the control group and TM6SF2 overexpression group, the relative expression of IL-2 and IL-6 mRNAs were significantly elevated in the TM6SF2 E167K overexpression group (p < 0.05). The relative mRNA expression of IL-8 in the TM6SF2 and TM6SF2 E167K overexpression groups were increased compared to the control group (p < 0.05). No obvious differences were observed for the expression of TNF-α in each group. The expression of TNF-α, IL-2, IL-6 and IL-8 that was tested by western blotting showed the same trends as the qRT-PCR results. Conclusions: In conclusion, the E167K variant of the TM6SF2 gene could promote the expression of inflammatory cytokines IL-2 and IL-6 in HEPA 1-6 cells, suggesting that the TM6SF2 E167K variant may accelerate the progression of HCC.
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Affiliation(s)
- Shuixian Du
- Department of Infectious Disease, Qingdao Municipal Hospital, Qingdao, China
| | - Songling Liao
- Department of Gastroenterology, Dalian Medical University, Dalian, China
| | - Shousheng Liu
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Yongning Xin
- Department of Infectious Disease, Qingdao Municipal Hospital, Qingdao, China
- Department of Gastroenterology, Dalian Medical University, Dalian, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- *Correspondence to: Yongning Xin, Department of Infectious Disease, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-82789463, Fax: +86-532-85968434, E-mail:
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Zhang X, Liu S, Dong Q, Xin Y, Xuan S. The Genetics of Clinical Liver Diseases: Insight into the TM6SF2 E167K Variant. J Clin Transl Hepatol 2018; 6:326-331. [PMID: 30271746 PMCID: PMC6160302 DOI: 10.14218/jcth.2018.00022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 07/22/2018] [Accepted: 08/15/2018] [Indexed: 12/12/2022] Open
Abstract
The transmembrane 6 superfamily member 2 (TM6SF2) gene E167K variant (rs58542926) was identified by exome-wide association study as a nonsynonymous single nucleotide polymorphism associated with nonalcoholic fatty liver disease. The TM6SF2 E167K variant features a C-to-T substitution at nucleotide 499, encoding a glutamate with lysine change at codon 167 (E167K). TM6SF2 is markedly expressed in the liver, small intestine and kidney, and has been proposed as an important risk factor for diseases associated with lipid metabolism. Subsequently, multifunctional studies of the TM6SF2 E167K variant have been carried out in a spectrum of liver diseases, such as nonalcoholic fatty liver disease, nonalcoholic steatohepatitis, fibrosis, cirrhosis, and viral hepatitis. This review summarizes the research status of the TM6SF2 E167K variant in different liver diseases and specific populations, and discusses the potential mechanisms of the TM6SF2 E167K variant's role in the progression of various liver diseases.
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Affiliation(s)
- Xiaoyu Zhang
- Department of Gastroenterology, Taishan Medical University, Taian, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
| | - Shousheng Liu
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Quanjiang Dong
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Yongning Xin
- Department of Gastroenterology, Taishan Medical University, Taian, China
- Department of Infectious Disease, Qingdao Municipal Hospital, Qingdao, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- *Correspondence to: Shiying Xuan, Department of Gastroenterology, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-88905508, Fax: +86-532-88905293, E-mail: ; Yongning Xin, Department of Infectious Disease, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-82789463, Fax: +86-532-85968434, E-mail:
| | - Shiying Xuan
- Department of Gastroenterology, Taishan Medical University, Taian, China
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China
- *Correspondence to: Shiying Xuan, Department of Gastroenterology, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-88905508, Fax: +86-532-88905293, E-mail: ; Yongning Xin, Department of Infectious Disease, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-82789463, Fax: +86-532-85968434, E-mail:
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