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Sugiyama M, Matsumura M, Sekiya M, Honda E, Sekine A, Arai H, Okudela K. A distinctive cytomorphological feature of interstitial pneumonia-related lung adenocarcinoma: The potential issues and solutions in practical diagnosis. Cancer Cytopathol 2023; 131:198-206. [PMID: 36508332 DOI: 10.1002/cncy.22666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/24/2022] [Accepted: 09/29/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The cytological features of interstitial pneumonia (IP)-related lung adenocarcinoma (LADC) have not been clearly described. This study aimed to describe its cytomorphological features, uncover potential problems in practical cytological diagnosis, and provide possible solutions. METHODS Bronchial brushing cytology samples from 40 IP-related LADC cases (the IP group) and 110 control cases (LADC unrelated to IP; the non-IP group) were analyzed. All patients underwent surgery after brushing cytology, and their histopathological subtypes were determined. The authors reviewed the cytological features and focused particularly on cytoplasmic mucin production. RESULTS In the IP group, neoplastic cells with cytoplasmic mucin were detected at a significantly higher frequency (44.4% [8 of 18] vs. 6.3% [4 of 64]), and most of them were invasive mucinous adenocarcinomas (IMAs). Twenty-two of the 40 LADC cases in the IP group failed to be judged as "malignant/positive" (thus, they were judged to be "equivocal and/or negative"). The frequency of equivocal and/or negative judgments was 55.0% (22 of 40) in the IP group and 41.8% (46 of 110) in the non-IP group. The cytological diagnosis of IMA was difficult because it showed only slight nuclear atypia. Therefore, the authors examined the immunocytochemical expression of hepatocyte nuclear factor 4α (HNF4α), a diagnostic marker for IMA. As a result, four of the six cases that were judged to be equivocal in the IP group showed positive signals and could be retrospectively judged as malignant/positive. CONCLUSIONS The cytological diagnosis of IP-related LADC may be more difficult because of the larger proportion of IMA. Immunocytochemistry for HNF4α can be used to improve diagnostic confidence in IP-related LADC.
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Affiliation(s)
- Misaki Sugiyama
- Clinical Laboratory Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Mai Matsumura
- Pathology Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan.,Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Motoki Sekiya
- Clinical Laboratory Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Emi Honda
- Clinical Laboratory Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Akimasa Sekine
- Respiratory Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Hiromasa Arai
- Surgery Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Koji Okudela
- Pathology Division, Kanagawa Prefecture Cardiovascular and Respiratory Center, Yokohama, Japan.,Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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2
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Yu Y, Zhang Q, Wu N, Xia L, Cao J, Xia Q, Zhao J, Zhang J, Hang H. HNF4α overexpression enhances the therapeutic potential of umbilical cord mesenchymal stem/stromal cells in mice with acute liver failure. FEBS Lett 2022; 596:3176-3190. [PMID: 35849431 DOI: 10.1002/1873-3468.14453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/09/2022] [Accepted: 06/20/2022] [Indexed: 01/14/2023]
Abstract
Human umbilical cord mesenchymal stem/stromal cells (hUMSCs) hold promise for treating acute liver failure (ALF). Here, we investigated the therapeutic effect of hUMSCs overexpressing hepatocyte nuclear factor 4α (HNF4α), a transcription factor important for maintaining hepatocyte identity and hepatic functions, in ALF, compared with hUMSCs without overexpression of HNF4α (CON-hUMSCs). The cells were administered into mice via the tail vein for 24 h before exposure to lipopolysaccharide/d-galactosamine (LPS/d-GalN) for 6 h by intraperitoneal injection. HNF4α-hUMSCs ameliorated liver injury in ALF better than CON-hUMSCs. The overexpression of HNF4α enhanced the transcription of interleukin (IL)-10 and promoted M2 macrophage polarization through the IL-10/signal transducer and activator of transcription 3 (STAT3) pathway. HNF4α-hUMSCs could exert a more pronounced therapeutic effect on ALF than CON-hUMSCs, providing a novel therapy for ALF.
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Affiliation(s)
- Yeping Yu
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Qiqi Zhang
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China.,Department of Hepatopancreatobiliary Surgery, East Hospital Affiliated to Tongji University, Shanghai, China
| | - Ning Wu
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Lei Xia
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Jie Cao
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Qiang Xia
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Jie Zhao
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Jianjun Zhang
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
| | - Hualian Hang
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China
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3
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Abstract
ABSTRACT Gastric intestinal metaplasia (GIM) is a precancerous lesion of gastric cancer (GC) and is considered an irreversible point of progression for GC. Helicobacter pylori infection can cause GIM, but its eradication still does not reverse the process. Bile reflux is also a pathogenic factor in GIM and can continuously irritate the gastric mucosa, and bile acids in refluxed fluid have been widely reported to be associated with GIM. This paper reviews in detail the relationship between bile reflux and GIM and the mechanisms by which bile acids induce GIM.
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Kamoshita K, Tsugane H, Ishii KA, Takayama H, Yao X, Abuduwaili H, Tanida R, Taniguchi Y, Oo HK, Gafiyatullina G, Kaneko S, Matsugo S, Takamura T. Lauric acid impairs insulin-induced Akt phosphorylation by upregulating SELENOP expression via HNF4α induction. Am J Physiol Endocrinol Metab 2022; 322:E556-E568. [PMID: 35499234 DOI: 10.1152/ajpendo.00163.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 11/22/2022]
Abstract
Selenoprotein P (SeP; encoded by SELENOP in humans, Selenop in rodents) is a hepatokine that is upregulated in the liver of humans with type 2 diabetes. Excess SeP contributes to the onset of insulin resistance and various type 2 diabetes-related complications. We have previously reported that the long-chain saturated fatty acid, palmitic acid, upregulates Selenop expression, whereas the polyunsaturated fatty acids (PUFAs) downregulate it in hepatocytes. However, the effect of medium-chain fatty acids (MCFAs) on Selenop is unknown. Here we report novel mechanisms that underlie the lauric acid-mediated Selenop gene regulation in hepatocytes. Lauric acid upregulated Selenop expression in Hepa1-6 hepatocytes and mice liver. A luciferase promoter assay and computational analysis of transcription factor-binding sites identified the hepatic nuclear factor 4α (HNF4α) binding site in the SELENOP promoter. A chromatin immunoprecipitation (ChIP) assay showed that lauric acid increased the binding of HNF4α to the SELENOP promoter. The knockdown of Hnf4α using siRNA canceled the upregulation of lauric acid-induced Selenop. Thus, the lauric acid-induced impairment of Akt phosphorylation brought about by insulin was rescued by the knockdown of either Hnf4α or Selenop. These results provide new insights into the regulation of SeP by fatty acids and suggest that SeP may mediate MCFA-induced hepatic insulin signal reduction.
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Affiliation(s)
- Kyoko Kamoshita
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Hirohiko Tsugane
- Institute of Science and Engineering, Faculty of Natural System, Kanazawa University, Kanazawa, Japan
| | - Kiyo-Aki Ishii
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
- Department of Integrative Medicine for Longevity, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hiroaki Takayama
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
- Department of System Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
- Life Sciences Division, Engineering and Technology Department, Kanazawa University, Kanazawa, Japan
| | - Xingyu Yao
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Halimulati Abuduwaili
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Ryota Tanida
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Yasumasa Taniguchi
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Hein Ko Oo
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Guzel Gafiyatullina
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
| | - Shuichi Kaneko
- Department of System Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Seiichi Matsugo
- Institute of Science and Engineering, Faculty of Natural System, Kanazawa University, Kanazawa, Japan
| | - Toshinari Takamura
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Ishikawa, Japan
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Abstract
Hepatic stellate cells (HSCs) play a crucial role in the progression of liver fibrosis, which can be considered as the specific therapeutic target of anti-fibrotic treatment. Targeted induction of HSCs to hepatocytes via delivery of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (dCas9) system holds promise for hepatic fibrosis treatment. Our study here revealed that CRISPR/dCas9-VP64 system encapsulated in AML12 cell-derived exosomes could efficiently and successfully be delivered into the HSCs. In turn, the CRISPR/dCas9-VP64 system loaded in the exosomes can be efficiently released into the HSCs. As a proof-of-concept study, gRNA against hepatocyte nuclear factor 4α (HNF4α) together with the delivery of CRISPR/dCas9-VP64 system induced the HSCs to hepatocyte-like phenotype. In conclusion, our study here revealed that CRISPR/dCas9-VP64 system encapsulated in AML12 cell-derived exosomes could be functional in HSCs, emerging as a gene therapy strategy for hepatic fibrosis.
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Affiliation(s)
- Nianan Luo
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China.,Department of General Surgery, 943 Hospital of PLA, Wuwei, China
| | - Jiangbin Li
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yafeng Chen
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yan Xu
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yu Wei
- Department of Breast Surgery, Enshi Central Hospital, Enshi, China
| | - Jianguo Lu
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Rui Dong
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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Belali T, Abomughaid M, Alhujaily M. The transcription factor HNF-4α: a key player in haematological disorders. Arch Med Sci 2021; 19:1646-1652. [PMID: 38058729 PMCID: PMC10696958 DOI: 10.5114/aoms/141219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/12/2021] [Indexed: 12/08/2023] Open
Abstract
HNF-4α is a member of the steroid hormone receptor family of transcription factors with roles in the development of the liver and the regulation of several critical metabolic pathways, such as glycolysis, drug metabolism, apolipoproteins and blood coagulation. The transcriptional potency of HNF-4α is well known due to its involvement in diabetes and other metabolic diseases. However, recently HNF-4α has been discovered to be closely associated with several haematological disorders, mainly because of genetic mutations, drugs, and hepatic disorders. We review HNF-4α structure and function, and its role in haematological disorders. We discuss possible novel therapies that are based on targeting HNF-4α.
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Affiliation(s)
- Tareg Belali
- Faculty of Applied Medical Sciences, University of Bisha, Saudi Arabia
| | - Mosleh Abomughaid
- Faculty of Applied Medical Sciences, University of Bisha, Saudi Arabia
| | - Muhanad Alhujaily
- Faculty of Applied Medical Sciences, University of Bisha, Saudi Arabia
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7
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Jiang S, Tanaka T, Yagami R, Hasegawa G, Umezu H, Fujiyoshi Y, Kodama T, Naito M, Ajioka Y. Immunohistochemical detection of hepatocyte nuclear factor-4α in vertebrates. Microsc Res Tech 2021; 84:2906-2914. [PMID: 34196449 DOI: 10.1002/jemt.23848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 05/16/2021] [Accepted: 05/23/2021] [Indexed: 11/06/2022]
Abstract
Hepatocyte nuclear factor-4α (HNF4α) presents in multiple isoforms generated using alternative promoter (P1 and P2) and splicing. Neither conservation of tissue distribution of HNF4α isoforms, nor presence of alternative promoter usage is known. In this study, to detect the expression of HNF4α in some species of animals, we have applied monoclonal antibodies against P1 (K9218) and P2 (H6939) promoter-driven and P1/P2 promoter-driven H1415 HNF4α for immunohistochemistry and western blot analysis. Antibody K9218 was observed in the hepatocytes, proximal tubules of the kidney, and epithelial cells in the mucosa of the small intestine and colon of rats, chicken, and tortoise, whereas antibody H6939 signal were detected in the stomach, pancreas, bile duct, and pancreatic duct of human and rats. The signal for antibody K9218 was recognized in tissues of a wide range of mammals, bird, reptile, amphibian, and fish as well. Antibody H1415 displayed a positive reaction in hepatocytes and intestinal epithelial cells in chicken and tortoise, whereas the bile duct, mucosal epithelial cells in the stomach, or pancreas in these animals were negative. Western blotting showed the binding of the antibody with HNF4α protein from each animal. The sequence of human HNF4α was 100% identical to murine and rat HNF4α, 88.9% to chicken, 77.8% to Xenopus HNF4α, and 81.5% to medaka. However, the specific part of human and invertebrate Drosophila HNF4 shares only 14.8% sequence identity. This antibody is useful for detecting HNF4α isoforms in a wide range of vertebrates, and suggests many insights into animal evolution.
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Affiliation(s)
- Shuying Jiang
- Niigata College of Medical Technology, Niigata, Japan.,Division of Molecular and Diagnostic Pathology, Graduate Scholl of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Toshiya Tanaka
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Ren Yagami
- Division of International Health (Public Health) Graduate Scholl of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Go Hasegawa
- Division of Pathology, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Hajime Umezu
- Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Yukio Fujiyoshi
- Department of Pathology and Molecular Diagnostics, Nagoya City Graduate School of Medical Sciences, Nagoya, Japan
| | - Tatsuhiko Kodama
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Makoto Naito
- Department of Pathology, Niigata Medical Center, Nishi-ku, Niigata, Japan
| | - Yoichi Ajioka
- Division of Molecular and Diagnostic Pathology, Graduate Scholl of Medical and Dental Sciences, Niigata University, Niigata, Japan
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Meijer I, Willems S, Ni X, Heering J, Chaikuad A, Merk D. Chemical Starting Matter for HNF4α Ligand Discovery and Chemogenomics. Int J Mol Sci 2020; 21:E7895. [PMID: 33114319 PMCID: PMC7660650 DOI: 10.3390/ijms21217895] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022] Open
Abstract
Hepatocyte nuclear factor 4α (HNF4α) is a ligand-sensing transcription factor and presents as a potential drug target in metabolic diseases and cancer. In humans, mutations in the HNF4α gene cause maturity-onset diabetes of the young (MODY), and the elevated activity of this protein has been associated with gastrointestinal cancers. Despite the high therapeutic potential, available ligands and structure-activity relationship knowledge for this nuclear receptor are scarce. Here, we disclose a chemically diverse collection of orthogonally validated fragment-like activators as well as inverse agonists, which modulate HNF4α activity in a low micromolar range. These compounds demonstrate the druggability of HNF4α and thus provide a starting point for medicinal chemistry as well as an early tool for chemogenomics.
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Affiliation(s)
- Isabelle Meijer
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; (I.M.); (S.W.); (X.N.); (A.C.)
| | - Sabine Willems
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; (I.M.); (S.W.); (X.N.); (A.C.)
| | - Xiaomin Ni
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; (I.M.); (S.W.); (X.N.); (A.C.)
- Structural Genomics Consortium, BMLS, Goethe-University Frankfurt, Max-von-Laue-Str. 15, 60438 Frankfurt, Germany
| | - Jan Heering
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch for Translational Medicine and Pharmacology TMP, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany;
| | - Apirat Chaikuad
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; (I.M.); (S.W.); (X.N.); (A.C.)
- Structural Genomics Consortium, BMLS, Goethe-University Frankfurt, Max-von-Laue-Str. 15, 60438 Frankfurt, Germany
| | - Daniel Merk
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany; (I.M.); (S.W.); (X.N.); (A.C.)
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9
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Li Z, Chen H. miR-34a inhibits proliferation, migration and invasion of paediatric neuroblastoma cells via targeting HNF4α. Artif Cells Nanomed Biotechnol 2019; 47:3072-3078. [PMID: 31343368 DOI: 10.1080/21691401.2019.1637886] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: To investigate the potential mechanism of microRNA-34a (miR-34a) on proliferation, migration and invasion of paediatric neuroblastoma cells. Methods: The expression of miR-34a and hepatocyte nuclear factor 4α (HNF4α) in paediatric neuroblastoma tissues were detected by RT-q PCR and Western blot, respectively. Cell proliferation, migration, invasion and the expression of matrix metalloproteinase 2 (MMP-2) and matrix metalloproteinase 14 (MMP-14) after transfection of miR-34a mimics or HNF4α siRNA into SH-SY5Y cells were detected by MTT assay, Transwell assay and Western blot assay, respectively. The target relationship between miR-34a and HNF4α was verified by TargetScan online prediction and dual-luciferase assay. Cell proliferation, migration and invasion of SH-SY5Y cells after overexpression of miR-34a and HNF4α were detected. Results: The expression level of miR-34a was decreased (p < .05) while the expression level of HNF4α was increased (p < .05) in paediatric neuroblastoma tissues. Over- expression of Mi-34a or knockdown of HNF4α in SH-SY5Y cells could lead to a decreased of cell proliferation, migration, invasion and the expression of MMP-2 and MMP-14 (p < .05). The results of TargetScan online prediction and dual-luciferase assay indicted that HNF4α was a potential target gene for miR-34a. Overexpression of HNF4α could reverse the inhibition of miR-34a on proliferation, migration and invasion of SH-SY5Y cells. Conclusion: The expression of miR-34a was down-regulated in paediatric neuroblastoma tissues, and overexpression of miR-34a could inhibit proliferation, migration and invasion of SH-SY5Y cells by targeting HNF4α.
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Affiliation(s)
- Zhiping Li
- a Department of Pediatrics, Henan Xinxiang Central Hospital , Xinxiang , China
| | - Huijun Chen
- a Department of Pediatrics, Henan Xinxiang Central Hospital , Xinxiang , China
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10
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Chai X, Yan J, Gao Y, Jin J. Endothelial HNF4α potentiates angiogenic dysfunction via enhancement of vascular endothelial growth factor resistance in T2DM. J Cell Biochem 2019; 120:12989-13000. [PMID: 30873661 DOI: 10.1002/jcb.28570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/18/2018] [Accepted: 01/02/2019] [Indexed: 12/24/2022]
Abstract
Although both hyperprocoagulant status, characterized by elevated thrombin levels, and vascular endothelial growth factor (VEGF) resistance, marked by attenuated expression of VEGFR2 (also called FLK1 or KDR), are known to contribute importantly to an increased risk of vascular events in diabetes mellitus type 2 (T2DM), it remains obscure whether these two biological events regulate angiogenic response in a coordinated manner. We show here that endothelial expression of hepatocyte nuclear factor 4α (HNF4α) was significantly upregulated in rodents and humans with T2DM, and HNF4α upregulation by thrombin was dependent on activation of multiple pathways, including protein kinase B, c-Jun N-terminal kinase, p38, oxidative stress, protein kinase C, and AMPK (5'-adenosine monophosphate (AMP)-activated protein kinase). Functionally, HNF4α inhibited VEGF-mediated endothelial proliferation and migration, and blunted VEGF-stimulated in vitro angiogenesis, thus rendering endothelial cells unresponsive to established angiogenic VEGF stimulation. Mechanistically, HNF4α potentiated the endothelial VEGF resistance through the direct transcriptional repression of FLK1 gene. From a therapeutic standpoint, overexpression of the exogenous FLK1 successfully rescued HNF4α-inhibited angiogenic response to VEGF and potentiated VEGF-stimulated in vitro tube formation. Considering a strong association between HNF4A deregulation and increased risk of T2DM, our findings suggest that HNF4α may act as a critical converging point linking hyperprocoagulant condition to VEGF resistance in diabetic ECs, and repression of FLK1 expression by thrombin-induced HNF4α mediates, at least partially, the vascular dysfunction caused by T2DM.
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Affiliation(s)
- Xubing Chai
- Department of Endocrinology, Xi'an Institute of Rheumatolog, Xi'an No. 5 Hospital, Xi'an, Shaanxi, China
| | - Jun Yan
- Department of Endocrinology, Xi'an Institute of Rheumatolog, Xi'an No. 5 Hospital, Xi'an, Shaanxi, China
| | - Yaya Gao
- Department of Endocrinology, Xi'an Institute of Rheumatolog, Xi'an No. 5 Hospital, Xi'an, Shaanxi, China
| | - Jing Jin
- Department of Geriatric, Xi'an Institute of Rheumatolog, Xi'an No. 5 Hospital, Xi'an, Shaanxi, China
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11
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Guo S, Lu H. Novel mechanisms of regulation of the expression and transcriptional activity of hepatocyte nuclear factor 4α. J Cell Biochem 2018; 120:519-532. [PMID: 30191603 DOI: 10.1002/jcb.27407] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/10/2018] [Indexed: 12/13/2022]
Abstract
Hepatocyte nuclear factor 4α (HNF4α) is a master regulator of development and function of digestive tissues. The HNF4A gene uses two separate promoters P1 and P2, with P1 products predominant in adult liver, whereas P2 products prevalent in fetal liver, pancreas, and liver/colon cancer. To date, the mechanisms for the regulation of HNF4A and the dynamic switch of P1-HNF4α and P2-HNF4α during ontogenesis and carcinogenesis are still obscure. Our study validated the previously reported self-stimulation of P1-HNF4α but invalidated the reported synergism between HNF4α and HNF1α. HNF4A-AS1, a long noncoding RNA, is localized between the P2 and P1 promoters of HNF4A. We identified critical roles of P1-HNF4α in regulating the expression of HNF4A-AS1 and its mouse ortholog Hnf4a-os. Paired box 6 (PAX6), a master regulator of pancreas development overexpressed in colon cancer, cooperated with HNF1α to induce P2-HNF4α but antagonized HNF4α in HNF4A-AS1 expression. Thus, PAX6 may be important in determining ontogenic and carcinogenic changes of P2-HNF4α and HNF4A-AS1 in the pancreas and intestine. We also interrogated transactivation activities on multiple gene targets by multiple known and novel HNF4α mutants identified in patients with maturity onset diabetes of the young 1 (MODY1) and liver cancer. Particularly, HNF4α-D78A and HNF4α-G79S, two mutants found in liver cancer with mutations in DNA-binding domain, displayed highly gene-specific transactivation activities. Interestingly, HNF4α-Q277X, a MODY1 truncation mutant, antagonized the transactivation activities of HNF1α and farnesoid X receptor, key regulators of insulin secretion. Taken together, our study provides novel mechanistic insights regarding the transcriptional regulation and transactivation activity of HNF4α in digestive tissues.
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Affiliation(s)
- Shangdong Guo
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, New York
| | - Hong Lu
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, New York
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12
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Jiang Q, Sun Y, Guo Z, Chen R, Ma S, Fu M, Zhu H, Ning Q, Lei P, Shen G. IL-23 enhances the malignant properties of hepatoma cells by attenuation of HNF4α. Oncotarget 2018; 9:28309-28321. [PMID: 29983862 PMCID: PMC6033364 DOI: 10.18632/oncotarget.24875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 03/06/2018] [Indexed: 02/07/2023] Open
Abstract
Chronic infection with hepatitis B virus (HBV) is one of the major risk factors for hepatocellular carcinoma. HBV infection can induce the expression of IL-23. However, the effects of IL-23 on carcinogenesis are rare and contradictory. To investigate the potential role of IL-23 on malignant properties of hepatoma cells, in the present study, first, we confirmed that HBV drove infected hepatoma cells to produce more IL-23. And then we found that at low concentration, human recombinant IL-23 (hrIL-23) enhanced malignant properties of hepatoma cells through increasing the proportion of stem/progenitor cells, promoting proliferation and colony formation, reducing apoptosis and inducing motility and invasivity of them. Hepatocyte nuclear factor 4 alpha (HNF4α), which is essential for liver development and hepatocyte function, was found to be downregulated in HBV integrated or transiently transfected hepatoma cells. Its expression was also decreased in cells treated by hrIL-23 or by HepG2.215 culture supernatant and this decrease could be abolished by supplementation of anti-IL-23p19 antibody. Hence, it is speculated that HBV related IL-23 can enhance malignant properties of hepatoma cells through attenuation of HNF4α. The findings identified a potential target of interventional strategies for treating hepatitis B patients through manipulation of the IL-23.
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Affiliation(s)
- Qing Jiang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Department of Allergy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuanli Sun
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zilong Guo
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ru Chen
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Simin Ma
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Mingpeng Fu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Huifen Zhu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qin Ning
- Department of Infectious Disease, Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ping Lei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guanxin Shen
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Nakajima N, Yoshizawa A, Nakajima T, Hirata M, Furuhata A, Sumiyoshi S, Rokutan-Kurata M, Sonobe M, Menju T, Miyamoto E, Chen-Yoshikawa TF, Date H, Haga H. GATA6-positive lung adenocarcinomas are associated with invasive mucinous adenocarcinoma morphology, hepatocyte nuclear factor 4α expression, and KRAS mutations. Histopathology 2018; 73:38-48. [PMID: 29469192 DOI: 10.1111/his.13500] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 02/18/2018] [Indexed: 02/06/2023]
Abstract
AIMS GATA6 is known to play a role in lung development. However, its role in the carcinogenesis of lung cancer is not well studied. The aim of this study was to analyse GATA6 expression in lung adenocarcinomas (LAs) by immunohistochemistry (IHC) in order to define its association with clinicopathological characteristics. METHODS AND RESULTS IHC analysis of GATA6 was performed with tissue microarray slides containing 348 LAs. The association between GATA6 expression and clinicopathological parameters was evaluated. GATA6 expression in epithelial tumours other than lung cancer was also evaluated. GATA6 expression was found in 47 LAs (13.5%). This occurred more frequently in younger patients (P = 0.005), and was associated with the absence of lymph node metastasis (P =0.024), well-differentiated to moderately differentiated tumours (P < 0.001), the absence of lymphatic invasion (P = 0.020), and the absence of vascular invasion (P = 0.011). GATA6 expression was associated with mucin production (P < 0.001), the invasive mucinous adenocarcinoma subtype (P < 0.001), KRAS mutations (P = 0.026), expression of MUC2 (P < 0.001), CDX2 (P = 0.049), and MUC5AC (P < 0.001), and absence of expression of TTF-1 (P = 0.002). GATA6 expression was also associated with hepatocyte nuclear factor 4α (HNF4α) expression (P < 0.001). GATA6 expression tended to indicate better prognoses, whereas patients with HNF4α expression had significantly worse prognoses (P = 0.033). Of 270 tumours other than lung cancer, 110 expressed GATA6. CONCLUSIONS These findings suggest that GATA6 might interact with HNF4α and contribute to the development of mucinous-type LAs.
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Affiliation(s)
- Naoki Nakajima
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Akihiko Yoshizawa
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Tomoyuki Nakajima
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Ayako Furuhata
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Shinji Sumiyoshi
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | | | - Makoto Sonobe
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Toshi Menju
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Ei Miyamoto
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan
| | | | - Hiroshi Date
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Hironori Haga
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
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14
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Tao NN, Gong R, Chen X, He L, Ren F, Yu HB, Chen J, Ren JH. Interleukin-35 stimulates hepatitis B virus transcription and replication by targeting transcription factor HNF4α. J Gen Virol 2018; 99:645-654. [PMID: 29561254 DOI: 10.1099/jgv.0.001050] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Hepatitis B virus (HBV) infection is a major health problem worldwide. Interleukin-35 (IL-35) is a definite immunosuppressive cytokine belonging to the IL-12 family. Nevertheless, the role of IL-35 in HBV replication remains elusive. In this study, we found that the level of HBV DNA replicative intermediates detected by qPCR and Southern blotting analysis was significantly increased by rhIL-35 in a dose-dependent manner. Moreover, HBV 3.5 kb mRNA levels were up-regulated by rhIL-35. The HBV core protein level as well as the HBsAg and HBeAg secretion levels were also increased by rhIL-35. Moreover, a mechanistic study demonstrated that IL-35 promoted HBV replication by enhancing the HBV core promoter activity. Importantly, hepatocyte nuclear factor 4α (HNF4α) was probably the target of IL-35. Mutation of the HNF4α-binding site on HBV core promoter or silencing HNF4α abolished the enhancement of HBV replication induced by IL-35. Finally, rhIL-35 was able to increase HBV replication in HBV transgenic mice. Taken together, our findings demonstrated that IL-35 has a novel role in HBV replication.
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Affiliation(s)
- Na-Na Tao
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Rui Gong
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Xiang Chen
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Lin He
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Fang Ren
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Hai-Bo Yu
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Juan Chen
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
| | - Ji-Hua Ren
- The Second Affiliated Hospital and the Key Laboratory of Molecular Biology of Infectious Diseases designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, PR China
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15
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Jiang CF, Wen LZ, Yin C, Xu WP, Shi B, Zhang X, Xie WF. Apoptosis signal-regulating kinase 1 mediates the inhibitory effect of hepatocyte nuclear factor-4α on hepatocellular carcinoma. Oncotarget 2016; 7:27408-21. [PMID: 27050273 DOI: 10.18632/oncotarget.8478] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 03/16/2016] [Indexed: 12/24/2022] Open
Abstract
Previous studies provided substantial evidence of a striking suppressive effect of hepatocyte nuclear factor 4α (HNF4α) on hepatocellular carcinoma (HCC). Apoptosis signal-regulating kinase 1 (ASK1) is involved in death receptor-mediated apoptosis and may acts as a tumor suppressor in hepatocarcinogenesis. However, the status and function of ASK1 during HCC progression are unclear. In this study, we found that HNF4α increased ASK1 expression by directly binding to its promoter. ASK1 expression was dramatically suppressed and correlated with HNF4α levels in HCC tissues. Reduced ASK1 expression was associated with aggressive tumors and poor prognosis for human HCC. Moreover, ASK1 inhibited the malignant phenotype of HCC cells in vitro. Intratumoral ASK1 injection significantly suppressed the growth of subcutaneous HCC xenografts in nude mice. More interestingly, systemic ASK1 delivery strikingly inhibited the growth of orthotopic HCC nodules in NOD/SCID mice. In addition, inhibition of endogenous ASK1 partially reversed the suppressive effects of HNF4α on HCC. Collectively, this study highlights the suppressive effect of ASK1 on HCC and its biological significance in HCC development. These outcomes broaden the knowledge of ASK1 function in HCC progression, and provide a novel potential prognostic biomarker and therapeutic target for advanced HCC.
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16
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Cai SH, Lu SX, Liu LL, Zhang CZ, Yun JP. Increased expression of hepatocyte nuclear factor 4 alpha transcribed by promoter 2 indicates a poor prognosis in hepatocellular carcinoma. Therap Adv Gastroenterol 2017; 10:761-771. [PMID: 29051787 PMCID: PMC5638181 DOI: 10.1177/1756283x17725998] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/05/2017] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Hepatocyte nuclear factor 4 alpha (HNF4α) plays an important role in tumourigenesis. There is growing evidence indicating that HNF4α transcribed by promoter 1 (P1-HNF4α) is expressed at relatively low levels in HCC and its presence predicts a favourable outcome for hepatocellular carcinoma (HCC) patients. However, the role of HNF4α transcribed by promoter 2 (P2-HNF4α) in HCC remains unclear. METHODS A total of 615 HCC specimens were obtained to construct tissue microarrays and perform immunohistochemistry. The relationship between P2-HNF4α and clinical features of HCC patients were analysed. Kaplan-Meier analysis was conducted to assess the prognostic value of P2-HNF4α. RESULTS The results showed that the expression of P2-HNF4α in HCC was noticeably increased in HCC tissues compared with the nontumourous tissues. In addition, P1-HNF4α expression was negatively correlated with P2-HNF4α expression (p = 0.023). High P2-HNF4α expression was significantly associated with poor differentiation of HCC (p = 0.002) and vascular invasion (p = 0.017). Kaplan-Meier analysis showed that P2-HNF4α expression was closely correlated with overall survival in the training group (p = 0.01), validation group (p = 0.034), and overall group of patients with HCC (p < 0.001). CONCLUSIONS Our data show that the role of HNF4α in cancer development needs to be further refined. P2-HNF4α, different from P1-HNF4α, is markedly upregulated and serves as an oncogene-associated protein in HCC. Our study therefore provides a promising biomarker for prognostic prediction and a potential therapeutic target for HCC.
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Affiliation(s)
- Shao-hang Cai
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Shi-xun Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Li-li Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Chris Zhiyi Zhang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, China
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17
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Wu N, Zhang YL, Wang HT, Li DW, Dai HJ, Zhang QQ, Zhang J, Ma Y, Xia Q, Bian JM, Hang HL. Overexpression of hepatocyte nuclear factor 4α in human mesenchymal stem cells suppresses hepatocellular carcinoma development through Wnt/β-catenin signaling pathway downregulation. Cancer Biol Ther 2017; 17:558-65. [PMID: 27124543 DOI: 10.1080/15384047.2016.1177675] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) hold promise as cellular vehicles for the delivery of therapeutic gene products because they can be isolated, expanded, and genetically modified in vitro and possess tumor-oriented homing capacity in vivo. (1) Hepatocyte nuclear factor 4α (HNF4α) is a dominant transcriptional regulator of hepatocyte differentiation and hepatocellular carcinogenesis (HCC). (2,3) We have previously demonstrated that overexpression of HNF4α activates various hepatic-specific genes and enhances MSC differentiation. (4) However, the extent that overexpression of HNF4α in MSCs influences HCC progression has yet to be examined. Here we sought to investigate what effect MSCs overexpressing HNF4α (MSC-HNF4α) have on human hepatoma cells in vitro and in vivo. Conditioned medium collected from in vitro MSC-HNF4α cultures significantly inhibited hepatoma cell growth and metastasis compared with controls. Additionally, nude mice administered MSC-HNF4α exhibited significantly smaller tumors compared with controls in vivo. Immunoblot analysis of HCC cells treated with MSC-HNF4α displayed downregulated β-catenin, cyclinD1, c-Myc, MMP2 and MMP9. Taken together, our results demonstrate that MSC-HNF4α inhibits HCC progression by reducing hepatoma cell growth and metastasis through downregulation of the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Ning Wu
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China.,b Department of General Surgery , Nanjing Hospital Affiliated to Nanjing Medical University , Nanjing , China
| | | | - Hai-Tian Wang
- b Department of General Surgery , Nanjing Hospital Affiliated to Nanjing Medical University , Nanjing , China
| | - Da-Wei Li
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Hui-Juan Dai
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Qi-Qi Zhang
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Jiang Zhang
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Yong Ma
- b Department of General Surgery , Nanjing Hospital Affiliated to Nanjing Medical University , Nanjing , China
| | - Qiang Xia
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
| | - Jian-Min Bian
- b Department of General Surgery , Nanjing Hospital Affiliated to Nanjing Medical University , Nanjing , China
| | - Hua-Lian Hang
- a Department of Liver Surgery , RenJi Hospital, School of Medicine, Shanghai Jiao Tong University , Shanghai , China
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18
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Bai L, Nong Y, Shi Y, Liu M, Yan L, Shang J, Huang F, Lin Y, Tang H. Luteolin Inhibits Hepatitis B Virus Replication through Extracellular Signal-Regulated Kinase-Mediated Down-Regulation of Hepatocyte Nuclear Factor 4α Expression. Mol Pharm 2015; 13:568-77. [PMID: 26656210 DOI: 10.1021/acs.molpharmaceut.5b00789] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Whether luteolin inhibits HBV replication has not been validated and the underlying mechanism of which has never been elucidated. In this study, we show that luteolin reduces HBV DNA replication in HepG2.2.15 cells. Luteolin effectively inhibited the expression of hepatocyte nuclear factor 4α (HNF4α) and its binding to the HBV promoters in HepG2.2.15 cells. While the extracellular signal-regulated kinase (ERK) was activated by luteolin, inhibition of ERK abolished luteolin-induced HNF4α suppression. Consistently, blocking ERK attenuated the anti-HBV activity of luteolin. In a HBV replication mouse model, luteolin decreased the levels of HBsAg, HBeAg, HBV DNA replication intermediates, and the HBsAg and HBcAg expression. Taken together, our results validated the anti-HBV activity of luteolin in both in vitro and in vivo studies and established a signaling cascade consisting of ERK and HNF4α for inhibition of HBV replication by luteolin, which may be exploited for clinical application of luteolin for anti-HBV therapy.
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Affiliation(s)
- Lang Bai
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Yunhong Nong
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Ying Shi
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Miao Liu
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Libo Yan
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Jin Shang
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
| | - Feijun Huang
- Department of Forensic Pathology, Medical School of Basic and Forensic Sciences, Sichuan University , Chengdu 610041, China
| | - Yong Lin
- Molecular Biology and Lung Cancer Program, Lovelace Respiratory Research Institute , 2425 Ridgecrest Dr. SE, Albuquerque, New Mexico 87108, United States
| | - Hong Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University , Chengdu 610041, China.,Division of Infectious Diseases, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu 610041, China
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19
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Prestin K, Wolf S, Feldtmann R, Hussner J, Geissler I, Rimmbach C, Kroemer HK, Zimmermann U, Meyer zu Schwabedissen HE. Transcriptional regulation of urate transportosome member SLC2A9 by nuclear receptor HNF4α. Am J Physiol Renal Physiol 2014; 307:F1041-51. [PMID: 25209865 DOI: 10.1152/ajprenal.00640.2013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Renal tubular handling of urate is realized by a network of uptake and efflux transporters, including members of drug transporter families such as solute carrier proteins and ATP-binding cassette transporters. Solute carrier family 2, member 9 (SLC2A9), is one key factor of this so called "urate transportosome." The aim of the present study was to understand the transcriptional regulation of SLC2A9 and to test whether identified factors might contribute to a coordinated transcriptional regulation of the transporters involved in urate handling. In silico analysis and cell-based reporter gene assays identified a hepatocyte nuclear factor (HNF)4α-binding site in the promoter of SLC2A9 isoform 1, whose activity was enhanced by transient HNF4α overexpression, whereas mutation of the binding site diminished activation. HNF4α overexpression induced endogenous SLC2A9 expression in vitro. The in vivo role of HNF4α in the modulation of renal SLC2A9 gene expression was supported by findings of quantitative real-time RT-PCR analyses and chromatin immunoprecipitation assays. Indeed, mRNA expression of SLC2A9 and HNF4α in human kidney samples was significantly correlated. We also showed that in renal clear cell carcinoma, downregulation of HNF4α mRNA and protein expression was associated with a significant decline in expression of the transporter. Taken together, our data suggest that nuclear receptor family member HNF4α contributes to the transcriptional regulation of SLC2A9 isoform 1. Since HNF4α has previously been assumed to be a modulator of several urate transporters, our findings support the notion that there could be a transcriptional network providing synchronized regulation of the functional network of the urate transportosome.
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Affiliation(s)
- Katharina Prestin
- University of Basel, Department of Pharmaceutical Sciences, Biopharmacy, Basel, Switzerland
| | - Stephanie Wolf
- University Medicine, Ernst Moritz Arndt University Greifswald, Center of Drug Absorption and Transport, Institute of Pharmacology, Greifswald, Germany
| | - Rico Feldtmann
- University Medicine, Ernst Moritz Arndt University Greifswald, Center of Drug Absorption and Transport, Institute of Pharmacology, Greifswald, Germany
| | - Janine Hussner
- University of Basel, Department of Pharmaceutical Sciences, Biopharmacy, Basel, Switzerland
| | - Ingrid Geissler
- University Medicine, Ernst Moritz Arndt University Greifswald, Center of Drug Absorption and Transport, Institute of Pharmacology, Greifswald, Germany
| | - Christian Rimmbach
- University Medicine, Ernst Moritz Arndt University Greifswald, Center of Drug Absorption and Transport, Institute of Pharmacology, Greifswald, Germany
| | - Heyo K Kroemer
- University of Goettingen, Medical Faculty, Goettingen, Germany; and
| | - Uwe Zimmermann
- University Medicine, Ernst Moritz Arndt University Greifswald, Department of Urology, Greifswald, Germany
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20
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Shim JH, Kang HJ, Han S, Lee YJ, Lee SG, Yu E, Lee HC. Prognostic value of hepatocyte nuclear factors 4α and 1α identified by tissue microarray in resectable hepatocellular carcinoma. J Gastroenterol Hepatol 2014; 29:524-32. [PMID: 23981200 DOI: 10.1111/jgh.12371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/06/2013] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIM This study aimed to investigate the prognostic value of expression of hepatocyte nuclear factors (HNFs) involved in hepatic gene transcription in patients undergoing curative resection for hepatocellular carcinoma (HCC). METHODS We performed immunohistochemical analyses on microarrays of the tumors and matched adjacent tissue using antibodies against HNF1α, HNF1β, HNF4α, and α-fetoprotein (AFP). We evaluated the prognostic value of biomarker expression using Cox regression and the Kaplan-Meier method in a training cohort of 220 patients and conducted an independent validation in 232 patients. We also determined whether measurement of HNFs improved risk prediction beyond the use of established factors, using net reclassification improvement (NRI). RESULTS Post-surgical recurrence and hepatic death were predicted by intratumoral HNF4α underexpression in both cohorts. In the training cohort they were also predicted by peritumoral HNF1α positivity. A pooled cohort analysis showed that these predictors were independently associated with early but not late-phase recurrence, and resultant mortality. Intratumoral expression levels of HNF4α were correlated with those of HNF1α, HNF1β, and AFP (P < 0.05). Similarly, HNF1α expression in peritumoral tissue was correlated with that of other markers (P < 0.05). There was no significant correlation between expression of HNF4α in tumors and HNF1α in peritumoral tissue. Adding combinations of intratumoral HNF4α and peritumoral HNF1α to 2-year recurrence and 5-year mortality models including known clinicopathological prognostic factors significantly improved the NRI indexes (39% and 44%, respectively; P < 0.05). CONCLUSIONS Immunohistological activation of intratumoral HNF4α and depletion of peritumoral HNF1α have prognostic significance for delayed recurrence and death after HCC resection.
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Affiliation(s)
- Ju Hyun Shim
- Department of Gastroenterology, Asan Medical Center, Seoul, Korea
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21
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Steinbrenner H. Interference of selenium and selenoproteins with the insulin-regulated carbohydrate and lipid metabolism. Free Radic Biol Med 2013; 65:1538-1547. [PMID: 23872396 DOI: 10.1016/j.freeradbiomed.2013.07.016] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/08/2013] [Accepted: 07/09/2013] [Indexed: 01/26/2023]
Abstract
An assumed link between supranutritional intake of the micronutrient selenium (Se) and type 2 diabetes mellitus is discussed controversially. Se concentrations in the habitual diet and in dietary supplements are probably not sufficient to induce overt diabetes in healthy individuals. On the other hand, high plasma Se and selenoprotein P (Sepp1) levels have been found to be associated with biomarkers of an impaired carbohydrate and lipid homeostasis in humans. Moreover, abundant expression of antioxidant selenoproteins due to dietary Se oversupply resulted in hyperinsulinemia and decreased insulin sensitivity in animal models. This review discusses findings from animal and cell culture studies in search of molecular mechanisms underlying an interference of Se and selenproteins such as the Se transport and supply protein Sepp1 and the hydrogen peroxide-reducing selenoenzyme glutathione peroxidase 1 (GPx1) with insulin-controlled metabolic pathways. A probable rationale derives from the positive and negative regulation of both glucose-induced insulin secretion and insulin-induced signaling by hydrogen peroxide. Se status and GPx1 expression have been reported to affect the activity of insulin-antagonistic phosphatases that are regulated by hydrogen peroxide-mediated reversible oxidation of catalytic cysteine residues. GPx1 and/or Sepp1 inhibited phosphorylation (activation) of key mediators in energy metabolism such as protein kinase B (Akt) and AMP-activated protein kinase (AMPK) in liver and/or skeletal muscle. Conversely, a dys-regulated carbohydrate metabolism in diabetes might affect plasma Se and Sepp1 levels, as the hepatic biosynthesis of Sepp1 is suppressed by insulin and stimulated under hyperglycemic conditions.
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Affiliation(s)
- Holger Steinbrenner
- Institute for Biochemistry and Molecular Biology I, Heinrich-Heine-Universität, Düsseldorf, Germany.
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Kondou H, Kawai M, Tachikawa K, Kimoto A, Yamagata M, Koinuma T, Yamazaki M, Nakayama M, Mushiake S, Ozono K, Michigami T. Sodium-coupled neutral amino acid transporter 4 functions as a regulator of protein synthesis during liver development. Hepatol Res 2013; 43:1211-23. [PMID: 23607685 DOI: 10.1111/hepr.12069] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2012] [Revised: 12/17/2012] [Accepted: 01/03/2013] [Indexed: 12/13/2022]
Abstract
AIM The molecular mechanisms by which hepatocyte nuclear factor (HNF)4α regulates fetal liver development have not been fully elucidated. We screened the downstream molecules of HNF4α during liver development and identified sodium-coupled neutral amino acid transporter (SNAT)4. The aim of this study is to investigate the regulation of SNAT4 by HNF4α and to clarify its roles in differentiating hepatocytes. METHODS HNF4α was overexpressed in cultured liver buds using adenovirus, and suppression subtractive hybridization screening was performed. Temporal and spatial expression of SNAT4 during liver development was investigated. Regulation of SNAT4 by HNF4α was examined by promoter analyses and electrophoretic mobility shift assays (EMSA). Metabolic labeling and western blotting were carried out using primary hepatoblasts with SNAT4 overexpression. RESULTS The expression of Slc38a4 encoding SNAT4 showed a marked perinatal increase, and was predominant among system A amino acid transporters. It was first detected in embryonic day 18.5 liver, and found in most hepatocytes after birth. Three alternative first exons were found in the SNAT4 gene. Promoter analyses using approximately 3-kb fragments corresponding to each first exon (AP1, AP2, AP3) revealed that AP1 and AP2 exhibited strong promoter activity in mouse hepatoblasts with endogenous HNF4α. Transactivation of AP2 was upregulated by HNF4α in HeLa cells without endogenous HNF4α. EMSA has demonstrated that HNF4α directly binds to cis-elements in AP2. Overexpression of SNAT4 facilitated amino acid uptake and de novo protein synthesis in primary hepatoblasts. CONCLUSION SNAT4 functions downstream of HNF4α and plays significant roles in liver development through mechanisms of amino acid uptake and protein synthesis.
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Affiliation(s)
- Hiroki Kondou
- Department of Environmental Medicine, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan; Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
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Singaravelu R, Lyn RK, Srinivasan P, Delcorde J, Steenbergen RH, Tyrrell DL, Pezacki JP. Human serum activates CIDEB-mediated lipid droplet enlargement in hepatoma cells. Biochem Biophys Res Commun 2013; 441:447-52. [PMID: 24161736 DOI: 10.1016/j.bbrc.2013.10.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 10/16/2013] [Indexed: 12/31/2022]
Abstract
Human hepatocytes constitutively express the lipid droplet (LD) associated protein cell death-inducing DFFA-like effector B (CIDEB). CIDEB mediates LD fusion, as well as very-low-density lipoprotein (VLDL) maturation. However, there are limited cell culture models readily available to study CIDEB's role in these biological processes, as hepatoma cell lines express negligible levels of CIDEB. Recent work has highlighted the ability of human serum to differentiate hepatoma cells. Herein, we demonstrate that culturing Huh7.5 cells in media supplemented with human serum activates CIDEB expression. This activation occurs through the induced expression of PGC-1α, a positive transcriptional regulator of CIDEB. Coherent anti-Stokes Raman scattering (CARS) microscopy revealed a correlation between CIDEB levels and LD size in human serum treated Huh7.5 cells. Human serum treatment also resulted in a rapid decrease in the levels of adipose differentiation-related protein (ADRP). Furthermore, individual overexpression of CIDEB was sufficient to down-regulate ADRP protein levels. siRNA knockdown of CIDEB revealed that the human serum mediated increase in LD size was CIDEB-dependent. Overall, our work highlights CIDEB's role in LD fusion, and presents a new model system to study the PGC-1α/CIDEB pathway's role in LD dynamics and the VLDL pathway.
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McIntosh AL, Petrescu AD, Hostetler HA, Kier AB, Schroeder F. Liver-type fatty acid binding protein interacts with hepatocyte nuclear factor 4α. FEBS Lett 2013; 587:3787-91. [PMID: 24140341 DOI: 10.1016/j.febslet.2013.09.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 09/01/2013] [Indexed: 10/26/2022]
Abstract
Hepatocyte nuclear factor 4α (HNF4α) regulates liver type fatty acid binding protein (L-FABP) gene expression. Conversely as shown herein, L-FABP structurally and functionally also interacts with HNF4α. Fluorescence resonance energy transfer (FRET) between Cy3-HNF4α (donor) and Cy5-L-FABP (acceptor) as well as FRET microscopy detected L-FABP in close proximity (~80 Å) to HNF4α, binding with high affinity Kd ~250-300 nM. Circular dichroism (CD) determined that the HNF4α/L-FABP interaction altered protein secondary structure. Finally, L-FABP potentiated transactivation of HNF4α in COS7 cells. Taken together, these data suggest that L-FABP provides a signaling path to HNF4α activation in the nucleus.
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Affiliation(s)
- Avery L McIntosh
- Department of Physiology and Pharmacology, Texas A&M University, TVMC, College Station, TX 77843-4466, United States
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25
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Lee TKW, Cheung VCH, Ng IOL. Liver tumor-initiating cells as a therapeutic target for hepatocellular carcinoma. Cancer Lett 2012; 338:101-9. [PMID: 22579789 DOI: 10.1016/j.canlet.2012.05.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 04/27/2012] [Accepted: 05/02/2012] [Indexed: 01/03/2023]
Abstract
Hepatocellular carcinoma (HCC) is a common malignancy worldwide and has poor prognosis. Existing treatment modalities, including surgery, chemotherapy, and radiofrequency ablation, which target tumor bulk, have demonstrated limited therapeutic efficacy. In the past 10years, accumulating evidence has supported the existence of cancer stem cells (CSCs) or tumor initiating cells (T-ICs) within tumors including HCC. Identification of liver T-ICs and the signaling pathways that they are involved in may shed light on novel therapeutic strategies against this deadly disease. In this review, we will discuss recent progresses made in the research of liver T-ICs with regard to identification, functional characterization, regulation and therapeutic implications.
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Affiliation(s)
- Terence Kin Wah Lee
- State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong
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