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Du J, Liu W, Song Y, Zhang Y, Dong C, Xiong S, Huang Z, Wang T, Ding J, He Q, Yu Z, Ma X. Activating autophagy promotes skin regeneration induced by mechanical stretch during tissue expansion. BURNS & TRAUMA 2024; 12:tkad057. [PMID: 38328438 PMCID: PMC10849167 DOI: 10.1093/burnst/tkad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/28/2023] [Accepted: 11/15/2023] [Indexed: 02/09/2024]
Abstract
Background Tissue expansion, a technique in which skin regeneration is induced by mechanical stretch stimuli, is commonly used for tissue repair and reconstruction. In this study, we aimed to monitor the autophagy levels of expanded skin after the application of expansion stimuli and explore the effect of autophagy modulation on skin regeneration. Methods A rat scalp expansion model was established to provide a stable expanded skin response to mechanical stretch. Autophagy levels at different time points (6, 12, 24, 48 and 72 h after the last expansion) were detected via western blotting. The effect of autophagy regulation on skin regeneration during tissue expansion was evaluated via skin expansion efficiency assessment, western blotting, immunofluorescence staining, TUNEL staining and laser Doppler blood flow imaging. Results The autophagic flux reached its highest level 48 h after tissue expansion. Activating autophagy by rapamycin increased the area of expanded skin as well as the thicknesses of epidermis and dermis. Furthermore, activating autophagy accelerated skin regeneration during tissue expansion by enhancing the proliferation of cells and the number of epidermal basal and hair follicle stem cells, reducing apoptosis, improving angiogenesis, and promoting collagen synthesis and growth factor secretion. Conversely, the regenerative effects were reversed when autophagy was blocked. Conclusions Autophagy modulation may be a promising therapeutic strategy for improving the efficiency of tissue expansion and preventing the incidence of the complication of skin necrosis.
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Affiliation(s)
- Jing Du
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
- Key Laboratory of Aerospace Medicine of Ministry of Education, School of Aerospace Medicine, Fourth Military Medical University, No. 169 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Wei Liu
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Yajuan Song
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Yu Zhang
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Chen Dong
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Shaoheng Xiong
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Zhaosong Huang
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Tong Wang
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Jianke Ding
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Qiang He
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Zhou Yu
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
| | - Xianjie Ma
- Department of Plastic Surgery, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Road, Xi’an, Shaanxi 710032, China
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Maninang C, Li J, Li W. Expression and prognostic role of STAT5a across cancer types. Biosci Rep 2023; 43:BSR20230612. [PMID: 37369132 PMCID: PMC10407157 DOI: 10.1042/bsr20230612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/17/2023] [Accepted: 06/21/2023] [Indexed: 06/29/2023] Open
Abstract
Studies examining the role of signal transducer and activator of transcription 5 (STAT5) in various cancers have produced controversial results. To address this controversy, we examined the prognostic role of STAT5a in cancer patients across multiple cancers. Transcription levels of STAT5a between tumors and normal tissues, obtained from public databases, were analyzed for statistical differences using Cox regression analysis with the outcome as overall survival and covariate of interest as high STAT5a expression. Meta-analysis was then conducted to summarize the hazard ratio estimate from the Cox regression analyses. We found that STAT5a was significantly under-expressed in breast, lung, and ovarian cancers, while STAT5a was significantly overexpressed in lymphoid neoplasm diffuse large B-cell lymphoma, glioblastoma, and glioma. High STAT5a expression was significantly associated with favorable survival in bladder cancer (lnHR = -0.8689 [-1.4087, -0.3292], P-value = 0.0016), breast cancer (lnHR = -0.7805 [-1.1394, -0.4215], P-value < 0.0001) and lung cancer (lnHR = -0.3255 [-0.6427, -0.0083], P-value = 0.0443). After adjusting for clinicopathological factors, high STAT5a expression remained significantly associated with favorable survival in breast cancer (lnHR = -0.6091 [-1.0810, -0.1372], P-value = 0.0114). These results suggest that higher STAT5a expression is associated with favorable overall survival in breast cancer, and therefore might have protective effects, and that STAT5a expression could be a potential prognostic biomarker, especially in breast cancer. However, the prognostic role of STAT5a is dependent on cancer type.
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Affiliation(s)
- Christine Maninang
- Department of Medicine, University of California San Diego, La Jolla, CA, U.S.A
| | - Jinghong Li
- Department of Medicine, University of California San Diego, La Jolla, CA, U.S.A
| | - Willis X. Li
- Department of Medicine, University of California San Diego, La Jolla, CA, U.S.A
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3
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Li Y, Zhao J, Yin Y, Zhang C, Zhang Z, Zheng Y. The Role of STAT3 Signaling Pathway Activation in Subconjunctival Scar Formation after Glaucoma Filtration Surgery. Int J Mol Sci 2023; 24:12210. [PMID: 37569586 PMCID: PMC10419097 DOI: 10.3390/ijms241512210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Scar formation resulting from overly active wound healing is a critical factor in the success rate of glaucoma filtration surgery (GFS). IL-6 and TGF-β have been implicated in the pathogenesis of fibrogenesis. In addition, the signal transducer and activator of transcription 3 (STAT3) can be activated by numerous cytokines and growth factors, including IL-6 and TGF-β1. Thus, STAT3 activation may integrate common profibrotic pathways to promote fibrosis. In this study, an increase in p-STAT3 was observed in activated HTFs. Inhibiting STAT3 in cultured HTFs by pharmacological inactivation reversed the fibrotic responses, such as fibroblast migration, the differentiation of resting fibroblasts into myofibroblasts and the deposition of ECM, mediated by IL-6 and TGF-β1. Moreover, the expression of suppressor of cytokine signaling 3 (SOCS3) was decreased in HTFs cultured with IL-6 and TGF-β1, and SOCS3 overexpression rescued ECM deposition, α-SMA expression and migration in IL-6- and TGF-β1-stimulated HTFs by inactivating STAT3. Finally, S3I-201 treatment inhibited profibrotic gene expression and subconjunctival fibrosis in a rat model of GFS. In conclusion, our data suggests that STAT3 plays a central role in fibrosis induced by different profibrotic pathways and that STAT3 is a potential target for antifibrotic therapies following GFS.
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Affiliation(s)
| | | | | | | | | | - Yajuan Zheng
- Department of Ophthalmology, The Second Hospital of Jilin University, Jilin University, Changchun 130041, China; (Y.L.); (J.Z.); (Y.Y.); (C.Z.); (Z.Z.)
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4
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Ma IL, Stanley TL. Growth hormone and nonalcoholic fatty liver disease. IMMUNOMETABOLISM (COBHAM, SURREY) 2023; 5:e00030. [PMID: 37520312 PMCID: PMC10373851 DOI: 10.1097/in9.0000000000000030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 07/06/2023] [Indexed: 08/01/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a prevalent cause of liver disease and metabolic comorbidities. Obesity is strongly associated with NAFLD and is also a state of relative deficiency of growth hormone (GH). Evidence supports a role of reduced GH and insulin-like growth factor-1 (IGF-1) in NAFLD pathogenesis. Physiological actions of GH in the liver include suppression of de novo lipogenesis (DNL) and promotion of lipid beta-oxidation, and GH also appears to have anti-inflammatory actions. Physiologic actions of IGF-1 include suppression of inflammatory and fibrogenic pathways important in the evolution from steatosis to steatohepatitis and fibrosis. Rodent models of impaired hepatic GH signaling show the development of steatosis, sometimes accompanied by inflammation, hepatocellular damage, and fibrosis, and these changes are ameliorated by treatment with GH and/or IGF-1. In humans, individuals with GH deficiency and GH resistance demonstrate an increased prevalence of NAFLD compared to controls, with improvement in hepatic lipid, steatohepatitis, and fibrosis following GH replacement. As a corollary, individuals with GH excess demonstrate lower hepatic lipid compared to controls along with increased hepatic lipid following treatment to normalize GH levels. Clinical trials demonstrate that augmentation of GH reduces hepatic lipid content in individuals with NAFLD and may also ameliorate steatohepatitis and fibrosis. Taken together, evidence supports an important role for perturbations in the GH/IGF-1 axis as one of the pathogenic mechanisms of NAFLD and suggests that further study is needed to assess whether augmentation of GH and/or IGF-1 may be a safe and effective therapeutic strategy for NAFLD.
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Affiliation(s)
- Ingrid L. Ma
- Metabolism Unit, Endocrine Division, Massachusetts General Hospital, Boston, MA, USA
| | - Takara L. Stanley
- Metabolism Unit, Endocrine Division, Massachusetts General Hospital, Boston, MA, USA
- Pediatric Endocrine Division, Massachusetts General Hospital, Boston, MA, USA
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5
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Guo Y, Tian G, Chen X, Hou Y, Zhang X, Xue X, Zhao L, Wu Y. GL-V9 ameliorates liver fibrosis by inhibiting TGF-β/smad pathway. Exp Cell Res 2023; 425:113521. [PMID: 36841325 DOI: 10.1016/j.yexcr.2023.113521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/27/2023]
Abstract
Liver fibrosis is a wound-healing response that arises from various aetiologies. Flavonoid compounds have been proved of their anti-liver fibrosis effects. This study aimed to elucidate the protective effect and mechanism of flavonoid compound GL-V9 on CCl4-induced and DDC-induced liver fibrosis. Treatment with GL-V9 alleviated hepatic injury and exhibited a dramatic protection effect of liver fibrosis. Further experiments found that GL-V9 treatment inhibited extracellular matrix (ECM) expression. Activation of hepatic stellate cells (HSCs) is a central driver of fibrosis. GL-V9 could inhibit the activation of HSCs through directly binding to TGFβRI, subsequently inhibit TGF-β/Smad pathway. In conclusion, this study proved that GL-V9 executed a protective effect on liver fibrosis by inhibiting TGF-β/Smad pathway.
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Affiliation(s)
- Yabing Guo
- Pharmaceutical Animal Experimental Center of China Pharmaceutical University, Nanjing, 211198, China
| | - Geng Tian
- Pathology and Patient Derived Xenograft Efficacy Evaluation Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Xin Chen
- Pathology and Patient Derived Xenograft Efficacy Evaluation Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yingjian Hou
- Center of Cellular and Molecular Biology, China Pharmaceutical University, Nanjing, 211198, China
| | - Xinyu Zhang
- Pathology and Patient Derived Xenograft Efficacy Evaluation Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Xin Xue
- Pathology and Patient Derived Xenograft Efficacy Evaluation Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Li Zhao
- Pathology and Patient Derived Xenograft Efficacy Evaluation Center, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Yun Wu
- Yancheng Third People's Hospital, Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng, 224001, China.
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Liu J, Wang F, Luo F. The Role of JAK/STAT Pathway in Fibrotic Diseases: Molecular and Cellular Mechanisms. Biomolecules 2023; 13:biom13010119. [PMID: 36671504 PMCID: PMC9855819 DOI: 10.3390/biom13010119] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/25/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023] Open
Abstract
There are four members of the JAK family and seven of the STAT family in mammals. The JAK/STAT molecular pathway could be activated by broad hormones, cytokines, growth factors, and more. The JAK/STAT signaling pathway extensively mediates various biological processes such as cell proliferation, differentiation, migration, apoptosis, and immune regulation. JAK/STAT activation is closely related to growth and development, homeostasis, various solid tumors, inflammatory illness, and autoimmune diseases. Recently, with the deepening understanding of the JAK/STAT pathway, the relationship between JAK/STAT and the pathophysiology of fibrotic diseases was noticed, including the liver, renal, heart, bone marrow, and lung. JAK inhibitor has been approved for myelofibrosis, and subsequently, JAK/STAT may serve as a promising target for fibrosis in other organs. Therefore, this article reviews the roles and mechanisms of the JAK/STAT signaling pathway in fibrotic diseases.
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Affiliation(s)
- Jia Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Faping Wang
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fengming Luo
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
- Correspondence: ; Tel.: +86-18980601355
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7
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Cabrera-Galván JJ, Araujo E, de Mirecki-Garrido M, Pérez-Rodríguez D, Guerra B, Aranda-Tavío H, Guerra-Rodríguez M, Brito-Casillas Y, Melián C, Martínez-Martín MS, Fernández-Pérez L, Recio C. SOCS2 protects against chemical-induced hepatocellular carcinoma progression by modulating inflammation and cell proliferation in the liver. Biomed Pharmacother 2023; 157:114060. [PMID: 36455458 DOI: 10.1016/j.biopha.2022.114060] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/03/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most prevalent and lethal cancers worldwide, but the precise intracellular mechanisms underlying the progression of this inflammation associated cancer are not well established. SOCS2 protein plays an important role in the carcinogenesis of different tumors by regulating cytokine signalling through the JAK/STAT axis. However, its role in HCC is unclear. Here, we investigate the role of SOCS2 in HCC progression and its potential as HCC biomarker. The effects of SOCS2 in HCC progression were evaluated in an experimental model of diethylnitrosamine (DEN)-induced HCC in C57BL/6 and SOCS2 deficient mice, in cultured hepatic cells, and in liver samples from HCC patients. Mice lacking SOCS2 showed higher liver tumor burden with increased malignancy grade, inflammation, fibrosis, and proliferation than their controls. Protein and gene expression analysis reported higher pSTAT5 and pSTAT3 activation, upregulation of different proteins involved in survival and proliferation, and increased levels of proinflammatory and pro-tumoral mediators in the absence of SOCS2. Clinically relevant, downregulated expression of SOCS2 was found in neoplasia from HCC patients compared to healthy liver tissue, correlating with the malignancy grade. In summary, our data show that lack of SOCS2 increases susceptibility to chemical-induced HCC and suggest the tumor suppressor role of this protein by regulating the oncogenic and inflammatory responses mediated by STAT5 and STAT3 in the liver. Hence, SOCS2 emerges as an attractive target molecule and potential biomarker to deepen in the study of HCC treatment.
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Affiliation(s)
- Juan José Cabrera-Galván
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Departamento Morfología, Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Eduardo Araujo
- Departamento Morfología, Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Mercedes de Mirecki-Garrido
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - David Pérez-Rodríguez
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Borja Guerra
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Unidad de Biomedicina (Unidad Asociada al CSIC), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain and Instituto de Investigaciones Biomédicas "Alberto Sols" Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
| | - Haidée Aranda-Tavío
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Miguel Guerra-Rodríguez
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Yeray Brito-Casillas
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - Carlos Melián
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain
| | - María Soledad Martínez-Martín
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Departamento Morfología, Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Servicio Anatomía Patológica, Complejo Hospitalario Universitario Insular - Materno Infantil, Las Palmas de Gran Canaria, Spain
| | - Leandro Fernández-Pérez
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Unidad de Biomedicina (Unidad Asociada al CSIC), Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain and Instituto de Investigaciones Biomédicas "Alberto Sols" Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Madrid, Spain
| | - Carlota Recio
- Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain.
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Dong H, Zhong W, Zhang W, Hao L, Guo W, Yue R, Sun X, Sun Z, Bataller R, Zhou Z. Loss of long-chain acyl-CoA synthetase 1 promotes hepatocyte death in alcohol-induced steatohepatitis. Metabolism 2023; 138:155334. [PMID: 36349655 DOI: 10.1016/j.metabol.2022.155334] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/07/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Alcohol consumption has been shown to disrupt hepatic lipid homeostasis. Long-chain acyl-CoA synthetase 1 (ACSL1) critically regulates hepatic fatty acid metabolism and lipid homeostasis by channeling fatty acids to lipid metabolic pathways. However, it remains unclear how ACSL1 contributes to the development of alcohol-associated liver disease (ALD). METHODS We performed chronic alcohol feeding animal studies with hepatocyte-specific ACSL1 knockout (ACSL1Δhep) mice, hepatocyte-specific STAT5 knockout (STAT5Δhep) mice, and ACSL1Δhep based-STAT5B overexpression (Stat5b-OE) mice. Cell studies were conducted to define the causal role of ACSL1 deficiency in the pathogenesis of alcohol-induced liver injury. The clinical relevance of the STAT5-ACSL1 pathway was examined using liver tissues from patients with alcoholic hepatitis (AH) and normal subjects (Normal). RESULTS We found that chronic alcohol consumption reduced hepatic ACSL1 expression in AH patients and ALD mice. Hepatocyte-specific ACSL1 deletion exacerbated alcohol-induced liver injury by increasing free fatty acids (FFA) accumulation and cell death. Cell studies revealed that FFA elicited the translocation of BAX and p-MLKL to the lysosomal membrane, resulting in lysosomal membrane permeabilization (LMP) and thereby initiating lysosomal-mediated cell death pathway. Furthermore, we identified that the signal transducer and activator of transcription 5 (STAT5) is a novel transcriptional regulator of ACSL1. Deletion of STAT5 exacerbated alcohol-induced liver injury in association with downregulation of ACSL1, and reactivation of ACSL1 by STAT5 overexpression effectively ameliorated alcohol-induced liver injury. In addition, ACSL1 expression was positively correlated with STAT5 and negatively correlated with cell death was also validated in the liver of AH patients. CONCLUSIONS ACSL1 deficiency due to STAT5 inactivation critically mediates alcohol-induced lipotoxicity and cell death in the development of ALD. These findings provide insights into alcohol-induced liver injury.
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Affiliation(s)
- Haibo Dong
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Wei Zhong
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, the University of North Carolina at Greensboro, Greensboro, NC, USA
| | - Wenliang Zhang
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Liuyi Hao
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Wei Guo
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Ruichao Yue
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Xinguo Sun
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA
| | - Zhaoli Sun
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ramon Bataller
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Zhanxiang Zhou
- Center for Translational Biomedical Research, the University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, NC, USA; Department of Nutrition, the University of North Carolina at Greensboro, Greensboro, NC, USA.
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9
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Abu El-Makarem MA, Kamel MF, Mohamed AA, Ali HA, Mohamed MR, Mohamed AEDM, El-Said AM, Ameen MG, Hassnine AA, Hassan HA. Down-regulation of hepatic expression of GHR/STAT5/IGF-1 signaling pathway fosters development and aggressiveness of HCV-related hepatocellular carcinoma: Crosstalk with Snail-1 and type 2 transforming growth factor-beta receptor. PLoS One 2022; 17:e0277266. [PMID: 36374927 PMCID: PMC9662744 DOI: 10.1371/journal.pone.0277266] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/24/2022] [Indexed: 11/16/2022] Open
Abstract
Background and aims So far, few clinical trials are available concerning the role of growth hormone receptor (GHR)/signal transducer and activator of transcription 5 (STAT5)/insulin like growth factor-1 (IGF-1) axis in hepatocarcinogenesis. The aim of this study was to evaluate the hepatic expression of GHR/STAT5/IGF-1 signaling pathway in hepatocellular carcinoma (HCC) patients and to correlate the results with the clinico-pathological features and disease outcome. The interaction between this signaling pathway and some inducers of epithelial-mesenchymal transition (EMT), namely Snail-1 and type 2 transforming growth factor-beta receptor (TGFBR2) was studied too. Material and methods A total of 40 patients with HCV-associated HCC were included in this study. They were compared to 40 patients with HCV-related cirrhosis without HCC, and 20 healthy controls. The hepatic expression of GHR, STAT5, IGF-1, Snail-1 and TGFBR2 proteins were assessed by immunohistochemistry. Results Compared with cirrhotic patients without HCC and healthy controls, cirrhotic patients with HCC had significantly lower hepatic expression of GHR, STAT5, and IGF-1proteins. They also displayed significantly lower hepatic expression of TGFBR2, but higher expression of Snail-1 versus the non-HCC cirrhotic patients and controls. Serum levels of alpha-fetoprotein (AFP) showed significant negative correlations with hepatic expression of GHR (r = -0.31; p = 0.029) and STAT5 (r = -0.29; p = 0.04). Hepatic expression of Snail-1 also showed negative correlations with GHR, STAT5, and IGF-1 expression (r = -0.55, p = 0.02; r = -0.472, p = 0.035, and r = -0.51, p = 0.009, respectively), whereas, hepatic expression of TGFBR2 was correlated positively with the expression of all these proteins (r = 0.47, p = 0.034; 0.49, p = 0.023, and r = 0.57, p<0.001, respectively). Moreover, we reported that decreased expression of GHR was significantly associated with serum AFP level>100 ng/ml (p = 0.048), increased tumor size (p = 0.02), vascular invasion (p = 0.002), and advanced pathological stage (p = 0.01). Similar significant associations were found between down-regulation of STAT5 expression and AFP level > 100 ng/ml (p = 0.006), vascular invasion (p = 0.009), and advanced tumor stage (p = 0.007). Also, attenuated expression of IGF-1 showed a significant association with vascular invasion (p < 0.001). Intriguingly, we detected that lower expression of GHR, STAT5 and IGF-1 were considered independent predictors for worse outcome in HCC. Conclusion Decreased expression of GHR/STAT5/IGF-1 signaling pathway may have a role in development, aggressiveness, and worse outcome of HCV-associated HCC irrespective of the liver functional status. Snail-1 and TGFBR2 as inducers of EMT may be key players. However, large prospective multicenter studies are needed to validate these results.
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Affiliation(s)
- Mona A. Abu El-Makarem
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
- * E-mail:
| | - Mariana F. Kamel
- Department of Pathology, School of Medicine, Minia University, Minia, Egypt
- Department of Pathology, Minia Oncology Center, Minia, Egypt
| | - Ahmed A. Mohamed
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Hisham A. Ali
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Mahmoud R. Mohamed
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | | | - Ahmed M. El-Said
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Mahmoud G. Ameen
- Department of Pathology, South Egypt Cancer Institute, Assuit University, Assuit, Egypt
| | - Alshymaa A. Hassnine
- Department of Tropical Medicine and Gastroenterology, School of Medicine, Minia University, Minia, Egypt
| | - Hatem A. Hassan
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
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10
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Zhou Y, Feng Y, Yang L, Zheng P, Hang L, Jiang F, Yuan J, Zhu L. High-fat diet combined with dextran sulfate sodium failed to induce a more serious NASH phenotype than high-fat diet alone. Front Pharmacol 2022; 13:1022172. [PMID: 36238563 PMCID: PMC9551200 DOI: 10.3389/fphar.2022.1022172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 12/03/2022] Open
Abstract
Background and Aims: Animal models are essential tools to investigate the pathogenesis of diseases. Disruption in the intestinal epithelial barrier and gut vascular barrier is an early event in the development of non-alcoholic fatty liver disease (NAFLD). Intestinal epithelial barrier can be destroyed by dextran sulfate sodium (DSS) oral administration. High fat diet (HFD)-induced non-alcoholic steatohepatitis (NASH) rat model has been widely used. Recently, the combination of HFD with DSS induced NASH model has also been reported. The present study aimed to evaluate whether this composite NASH animal model is more ideal than that induced by HFD alone. Methods: Rats were divided into control, HFD and HFD combined with DSS (DSS + HFD) groups. They were fed with routine diet, high-fat diet, and HFD combined with DSS drinking, respectively, for 22 weeks. Histopathological analysis (HE staining, Oil-Red O staining, Masson staining), lipid parameters testing (TG, TC, GLU, NEFA, TRIG, LDL, HDL), testing on indicators of inflammation (TNF-α, ALT, AST, ALP, LDH) and oxidative stress (MDA, SOD, CAT) were performed. Results: Rats in HFD and DSS + HFD group displayed increase in the body weight, liver weight, lipids accumulation and the levels of TNF-α, ALT, AST, ALP, MDA in serum and liver accompanied with impaired glucose tolerance, obvious hepatitis, and decreased levels of SOD and CAT in serum and liver compared to those in control group. Moreover, in the DSS + HFD group, but not in the HFD group, proliferation of fibrous tissue in the portal area and the hepatic lobules was found. Conclusion: The addition of DSS on high-fat diet did not exacerbate lipid accumulation and inflammation, but induced NASH-related liver fibrosis.
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Affiliation(s)
- Yan Zhou
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ya Feng
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lili Yang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Peiyong Zheng
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu Hang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fengru Jiang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianye Yuan
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Jianye Yuan, ; Lixin Zhu,
| | - Lixin Zhu
- Department of Colorectal Surgery, Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Jianye Yuan, ; Lixin Zhu,
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11
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Dichtel LE, Cordoba-Chacon J, Kineman RD. Growth Hormone and Insulin-Like Growth Factor 1 Regulation of Nonalcoholic Fatty Liver Disease. J Clin Endocrinol Metab 2022; 107:1812-1824. [PMID: 35172328 PMCID: PMC9202731 DOI: 10.1210/clinem/dgac088] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Indexed: 11/19/2022]
Abstract
Patients with obesity have a high prevalence of nonalcoholic fatty liver disease (NAFLD), representing a spectrum of simple steatosis to nonalcoholic steatohepatitis (NASH), without and with fibrosis. Understanding the etiology of NAFLD is clinically relevant since NAFLD is an independent risk factor for diabetes and cardiovascular disease. In addition, NASH predisposes patients to the development of cirrhosis and hepatocellular carcinoma, and NASH cirrhosis represents the fastest growing indication for liver transplantation in the United States. It is appreciated that multiple factors are involved in the development and progression of NAFLD. Growth hormone (GH) and insulin-like growth factor 1 (IGF1) regulate metabolic, immune, and hepatic stellate cell function, and alterations in the production and function of GH is associated with obesity and NAFLD/NASH. Therefore, this review will focus on the potential role of GH and IGF1 in the regulation of hepatic steatosis, inflammation, and fibrosis.
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Affiliation(s)
- Laura E Dichtel
- Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jose Cordoba-Chacon
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Illinois at Chicago, Chicago, IL, USA
| | - Rhonda D Kineman
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Illinois at Chicago, Chicago, IL, USA
- Jesse Brown VA Medical Center, Research and Development Division, Chicago, IL, USA
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12
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Beghini M, Wagner T, Luca AC, Metz M, Kaltenecker D, Spirk K, Hackl MT, Haybaeck J, Moriggl R, Kautzky-Willer A, Scherer T, Fürnsinn C. Adipocyte STAT5 deficiency does not affect blood glucose homeostasis in obese mice. PLoS One 2021; 16:e0260501. [PMID: 34818373 PMCID: PMC8612524 DOI: 10.1371/journal.pone.0260501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 11/10/2021] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to investigate whether the lack of signal transducer and activator of transcription 5 (STAT5) in mature adipocytes of obese mice (Stat5Adipoq mice) improves glucose and lipid metabolism as previously observed in lean mice. Male Stat5Adipoq mice and their wild type (WT) littermates were fed high-fat diet (HFD). Effects of adipocyte STAT5 deficiency on adiposity as well as on glucose and lipid metabolism were determined under ad libitum feeding and after weight loss induced by calorie restriction. Compared to WT mice, obese Stat5Adipoq mice showed modestly accelerated weight gain and blunted depletion of fat stores under calorie restriction (reduction in % body fat after 3 weeks: WT, -9.3±1.1, vs Stat5Adipoq, -5.9±0.8, p = 0.04). No differences were observed between Stat5Adipoq and WT mice with regard to parameters of glucose and lipid metabolism including basal glycaemia, glucose tolerance, and plasma triglycerides. In conclusion, STAT5 deficiency in the adipocyte of HFD-fed obese mice was associated with increased fat accumulation. In contrast to previous findings in lean mice, however, lipid accumulation was not associated with any improvement in glucose and lipid metabolism. Our results do not support adipocyte STAT5 as a promising target for the treatment of obesity-associated metabolic derangements.
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Affiliation(s)
- Marianna Beghini
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Theresia Wagner
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Andreea Corina Luca
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Matthäus Metz
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Doris Kaltenecker
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Katrin Spirk
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Martina Theresa Hackl
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Johannes Haybaeck
- Institute of Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, Innsbruck, Austria
- Diagnostic & Research Center for Molecular Biomedicine, Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Richard Moriggl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Alexandra Kautzky-Willer
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas Scherer
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Clemens Fürnsinn
- Division of Endocrinology & Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria
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13
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Guo HH, Jing XY, Chen H, Xu HX, Zhu BM. STAT3 but Not STAT5 Contributes to the Protective Effect of Electroacupuncture Against Myocardial Ischemia/Reperfusion Injury in Mice. Front Med (Lausanne) 2021; 8:649654. [PMID: 34307396 PMCID: PMC8299366 DOI: 10.3389/fmed.2021.649654] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/13/2021] [Indexed: 02/05/2023] Open
Abstract
Electroacupuncture (EA) can help reduce infarct size and injury resulting from myocardial ischemia/reperfusion (I/R); however, the underlying molecular mechanism remains unknown. We previously reported that STAT5 plays a critical role in the cardioprotective effect of remote ischemic preconditioning (RIPC). Here, we assessed the effects of electroacupuncture pretreatment (EAP) on myocardial I/R injury in the presence and/or absence of Stat5 in mice and investigated whether EAP exerts its cardioprotective effects in a STAT5-dependent manner. Adult Stat5fl/fl and Stat5-cKO mice were exposed to EAP at Neiguan (PC6) for 7 days before the induction of I/R injury by left anterior descending (LAD) coronary artery ligation. The myocardial infarct size (IS), area at risk, and apoptotic rate of cardiomyocytes were detected. RT-qPCR and western blotting were used to measure gene and protein expression, respectively, in homogenized heart tissues. RNA-seq was used to identify candidate genes and pathways. Our results showed that EAP decreased IS and the rate of cardiomyocyte apoptosis. We further found that STAT5 was activated by EAP in Stat5fl/fl mice but not in Stat5-cKO mice, whereas the opposite was observed for STAT3. Following EAP, the levels of the antiapoptotic proteins Bcl-xL, Bcl-2, and p-AKT were increased in the presence of Stat5, while that of interleukin 10 (IL-10) was increased in both Stat5fl/fl and Stat5-cKO. The gene expression profile in heart tissues was different between Stat5fl/fl and the Stat5-cKO mice with EAP. Importantly, the top 30 DEGs under EAP in the Stat5-cKO mice were enriched in the IL-6/STAT3 signaling pathway. Our results revealed for the first time that the protective effect of EAP following myocardial I/R injury was attributable to, but not dependent on, STAT5. Additionally, we found that EAP could activate STAT3 signaling in the absence of the Stat5 gene, and could also activate antiapoptotic, survival, and anti-inflammatory signaling pathways.
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Affiliation(s)
- Hui-Hui Guo
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xin-Yue Jing
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hui Chen
- Rehabilitation Medicine Department, YE DA Hospital of Yantai, Yantai, China
| | - Hou-Xi Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Bing-Mei Zhu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
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14
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Zhao X, Wang J, Deng Y, Liao L, Zhou M, Peng C, Li Y. Quercetin as a protective agent for liver diseases: A comprehensive descriptive review of the molecular mechanism. Phytother Res 2021; 35:4727-4747. [PMID: 34159683 DOI: 10.1002/ptr.7104] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/12/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023]
Abstract
Quercetin is the major representative of the flavonoid subgroup of flavones, with good pharmacological activities for the treatment of liver diseases, including liver steatosis, fatty hepatitis, liver fibrosis, and liver cancer. It can significantly influence the development of liver diseases via multiple targets and multiple pathways via antifat accumulation, anti-inflammatory, and antioxidant activity, as well as the inhibition of cellular apoptosis and proliferation. Despite extensive research on understanding the mechanism of quercetin in the treatment of liver diseases, there are still no targeted therapies available. Thus, we have comprehensively searched and summarized the different targets of quercetin in different stages of liver diseases and concluded that quercetin inhibited inflammation of the liver mainly through NF-κB/TLR/NLRP3, reduced PI3K/Nrf2-mediated oxidative stress, mTOR activation in autophagy, and inhibited the expression of apoptotic factors associated with the development of liver diseases. In addition, quercetin showed different mechanisms of action at different stages of liver diseases, including the regulation of PPAR, UCP, and PLIN2-related factors via brown fat activation in liver steatosis. The compound inhibited stromal ECM deposition at the liver fibrosis stage, affecting TGF1β, endoplasmic reticulum stress (ERs), and apoptosis. While at the final liver cancer stage, inhibiting cancer cell proliferation and spread via the hTERT, MEK1/ERK1/2, Notch, and Wnt/β-catenin-related signaling pathways. In conclusion, quercetin is an effective liver protectant. We hope to explore the pathogenesis of quercetin in different stages of liver diseases through the review, so as to provide more accurate targets and theoretical basis for further research of quercetin in the treatment of liver diseases.
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Affiliation(s)
- Xingtao Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mengting Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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15
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MiR-210-5p regulates STAT3 activation by targeting STAT5A in the differentiation of dermal fibroblasts. 3 Biotech 2021; 11:243. [PMID: 33968586 DOI: 10.1007/s13205-021-02777-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 04/05/2021] [Indexed: 10/21/2022] Open
Abstract
Elucidating the molecular mechanism of the microRNAs in skin fibrosis is critical for identifying a novel therapeutic strategy for hypertrophic scar (HS). In this study, it was shown that miR-210-5p is induced by TGFβ, and that overexpression of miR-210-5p promoted the differentiation of human dermal fibroblasts (HDFs) into myofibroblasts. STAT5A is required for TGFβ-induced STAT3 activity. Here, we show that miR-210-5p attenuated TGFβ-induced STAT3 signaling pathway by suppressing the expression of STAT5A. Taken together, the present study suggests that TGFβ-induced miR-210-5p reduced STAT5A expression, leading to aberrant activation of STAT3, and facilitate skin fibrosis in HDFs.
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16
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Cui X, Zhang S, Zhang Q, Guo X, Wu C, Yao M, Sun D. Comprehensive MicroRNA Expression Profile of the Mammary Gland in Lactating Dairy Cows With Extremely Different Milk Protein and Fat Percentages. Front Genet 2020; 11:548268. [PMID: 33343617 PMCID: PMC7744623 DOI: 10.3389/fgene.2020.548268] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/05/2020] [Indexed: 12/27/2022] Open
Abstract
A total of 31 differentially expressed genes in the mammary glands were identified in our previous study using RNA sequencing (RNA-Seq), for lactating cows with extremely high and low milk protein and fat percentages. To determine the regulation of milk composition traits, we herein investigated the expression profiles of microRNA (miRNA) using small RNA sequencing based on the same samples as in the previous RNA-Seq experiment. A total of 497 known miRNAs (miRBase, release 22.1) and 49 novel miRNAs among the reads were identified. Among these miRNAs, 71 were found differentially expressed between the high and low groups (p < 0.05, q < 0.05). Furthermore, 21 of the differentially expressed genes reported in our previous RNA-Seq study were predicted as target genes for some of the 71 miRNAs. Gene ontology and KEGG pathway analyses showed that these targets were enriched for functions such as metabolism of protein and fat, and development of mammary gland, which indicating the critical role of these miRNAs in regulating the formation of milk protein and fat. With dual luciferase report assay, we further validated the regulatory role of 7 differentially expressed miRNAs through interaction with the specific sequences in 3'UTR of the targets. In conclusion, the current study investigated the complexity of the mammary gland transcriptome in dairy cattle using small RNA-seq. Comprehensive analysis of differential miRNAs expression and the data from previous study RNA-seq provided the opportunity to identify the key candidate genes for milk composition traits.
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Affiliation(s)
- Xiaogang Cui
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.,Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Shengli Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qin Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiangyu Guo
- Center for Quantitative Genetics and Genomics, Aarhus University, Tjele, Denmark
| | - Changxin Wu
- Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Mingze Yao
- Key Lab of Medical Molecular Cell Biology of Shanxi Province, Institutes of Biomedical Sciences, Shanxi University, Taiyuan, China
| | - Dongxiao Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, National Engineering Laboratory of Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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17
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Jiang Y, Tao Y, Zhang X, Wei X, Li M, He X, Zhou B, Guo W, Yin H, Cheng S. Loss of STAT5A promotes glucose metabolism and tumor growth through miRNA-23a-AKT signaling in hepatocellular carcinoma. Mol Oncol 2020; 15:710-724. [PMID: 33155364 PMCID: PMC7858139 DOI: 10.1002/1878-0261.12846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/06/2020] [Accepted: 10/13/2020] [Indexed: 12/21/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide. Here, we identified that increased miR‐23a expression in HCC tissues was associated with worse survival. More importantly, we found that STAT5A was a target of miR‐23a, whose levels significantly decreased in tumor tissues. Stable expression of STAT5A in Huh7 cells suppressed glucose metabolism and tumor growth. Finally, this study showed that increased miR‐23a negatively regulated STAT5A, which further activated AKT signaling to enable rapid metabolism for accelerated tumor growth in HCC. Taken together, our results demonstrated that the miR‐23a‐STAT5A‐AKT signaling pathway is critical to alter glucose metabolism in HCC and may offer new opportunities for effective therapy.
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Affiliation(s)
- Yabo Jiang
- The Six Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Yongzhen Tao
- Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health (SINH), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xiuping Zhang
- Department of Hepatobiliary and Pancreatic Surgical Oncology, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Xubiao Wei
- The Six Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Min Li
- Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health (SINH), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Xuxiao He
- Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health (SINH), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Bin Zhou
- The Six Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Weixing Guo
- The Six Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Huiyong Yin
- Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health (SINH), Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, China
| | - Shuqun Cheng
- The Six Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
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18
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STAT3 transcription factor as target for anti-cancer therapy. Pharmacol Rep 2020; 72:1101-1124. [PMID: 32880101 DOI: 10.1007/s43440-020-00156-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022]
Abstract
STATs constitute a large family of transcription activators and transducers of signals that have an important role in many cell functions as regulation of proliferation and differentiation of the cell also regulation of apoptosis and angiogenesis. STAT3 as a member of that family, recently was discovered to have a vital role in progression of different types of cancers. The activation of STAT3 was observed to regulate multiple gene functions during cancer-like cell proliferation, differentiation, apoptosis, metastasis, inflammation, immunity, cell survival, and angiogenesis. The inhibition of STAT3 activation has been an important target for cancer therapy. Inhibitors of STAT3 have been used for a long time for treatment of many types of cancers like leukemia, melanoma, colon, and renal cancer. In this review article, we summarize and discuss different drugs inhibiting the action of STAT3 and used in treatment of different types of cancer.
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19
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Involvement of STAT5 in Oncogenesis. Biomedicines 2020; 8:biomedicines8090316. [PMID: 32872372 PMCID: PMC7555335 DOI: 10.3390/biomedicines8090316] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/19/2020] [Accepted: 08/26/2020] [Indexed: 12/24/2022] Open
Abstract
Signal transducer and activator of transcription (STAT) proteins, and in particular STAT3, have been established as heavily implicated in cancer. Recently, the involvement of STAT5 signalling in the pathology of cancer has been shown to be of increasing importance. STAT5 plays a crucial role in the development of the mammary gland and the homeostasis of the immune system. However, in various cancers, aberrant STAT5 signalling promotes the expression of target genes, such as cyclin D, Bcl-2 and MMP-2, that result in increased cell proliferation, survival and metastasis. To target constitutive STAT5 signalling in cancers, there are several STAT5 inhibitors that can prevent STAT5 phosphorylation, dimerisation, or its transcriptional activity. Tyrosine kinase inhibitors (TKIs) that target molecules upstream of STAT5 could also be utilised. Consequently, since STAT5 contributes to tumour aggressiveness and cancer progression, inhibiting STAT5 constitutive activation in cancers that rely on its signalling makes for a promising targeted treatment option.
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20
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Huang E, Peng N, Xiao F, Hu D, Wang X, Lu L. The Roles of Immune Cells in the Pathogenesis of Fibrosis. Int J Mol Sci 2020; 21:E5203. [PMID: 32708044 PMCID: PMC7432671 DOI: 10.3390/ijms21155203] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/19/2020] [Accepted: 07/21/2020] [Indexed: 12/15/2022] Open
Abstract
Tissue injury and inflammatory response trigger the development of fibrosis in various diseases. It has been recognized that both innate and adaptive immune cells are important players with multifaceted functions in fibrogenesis. The activated immune cells produce various cytokines, modulate the differentiation and functions of myofibroblasts via diverse molecular mechanisms, and regulate fibrotic development. The immune cells exhibit differential functions during different stages of fibrotic diseases. In this review, we summarized recent advances in understanding the roles of immune cells in regulating fibrotic development and immune-based therapies in different disorders and discuss the underlying molecular mechanisms with a focus on mTOR and JAK-STAT signaling pathways.
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Affiliation(s)
- Enyu Huang
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China; (E.H.); (F.X.)
| | - Na Peng
- Department of Rheumatology and Immunology, the Second People’s Hospital of Three Gorges University, Yichang 443000, China; (N.P.); (D.H.)
| | - Fan Xiao
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China; (E.H.); (F.X.)
| | - Dajun Hu
- Department of Rheumatology and Immunology, the Second People’s Hospital of Three Gorges University, Yichang 443000, China; (N.P.); (D.H.)
| | - Xiaohui Wang
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China; (E.H.); (F.X.)
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong, China; (E.H.); (F.X.)
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21
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Li T, Zhang G, Wang L, Li S, Xu X, Gao Y. Defects in mTORC1 Network and mTORC1-STAT3 Pathway Crosstalk Contributes to Non-inflammatory Hepatocellular Carcinoma. Front Cell Dev Biol 2020; 8:225. [PMID: 32363190 PMCID: PMC7182440 DOI: 10.3389/fcell.2020.00225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 03/16/2020] [Indexed: 02/05/2023] Open
Abstract
Background and Aims Mammalian target of rapamycin complex 1 (mTORC1) is frequently hyperactivated in hepatocellular carcinoma (HCC). Cases of HCC without inflammation and cirrhosis are not rarely seen in clinics. However, the molecular basis of non-inflammatory HCC remains unclear. Methods Spontaneous non-inflammatory HCC in mice was triggered by constitutive elevation of mTORC1 by liver-specific TSC1 knockout (LTsc1KO). A multi-omics approach was utilized on tumor tissues to better understand the molecular basis for the development of HCC in the LTsc1KO model. Results We showed that LTsc1KO in mice triggered spontaneous non-inflammatory HCC, with molecular characteristics similar to those of diethylnitrosamine-mediated non-cirrhotic HCC. Mitochondrial and autophagy defects, as well as hepatic metabolic disorder were manifested in HCC development by LTsc1KO. mTORC1 activation on its own regulated an oncogenic network (DNA-damage-inducible transcript 4, nuclear protein 1, and fibroblast growth factor 21), and mTORC1-signal transducer and activator of transcription pathway crosstalk that altered specific metabolic pathways contributed to the development of non-inflammatory HCC. Conclusion Our findings reveal the mechanisms of mTORC1-driven non-inflammatory HCC and provide insight into further development of a protective strategy against non-inflammatory HCC.
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Affiliation(s)
- Ting Li
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Guohong Zhang
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Department of Pathology, Shantou University Medical College, Shantou, China.,Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Linlin Wang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Susu Li
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaoping Xu
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Artificial Organs and Tissue Engineering Centre of Guangdong Province, Guangzhou, China.,State Key Laboratory of Organ Failure Research, Southern Medical University, Guangzhou, China
| | - Yi Gao
- Department of Hepatobiliary Surgery II, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Institute of Regenerative Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Artificial Organs and Tissue Engineering Centre of Guangdong Province, Guangzhou, China.,State Key Laboratory of Organ Failure Research, Southern Medical University, Guangzhou, China
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22
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Hin Tang JJ, Hao Thng DK, Lim JJ, Toh TB. JAK/STAT signaling in hepatocellular carcinoma. Hepat Oncol 2020; 7:HEP18. [PMID: 32273976 PMCID: PMC7137178 DOI: 10.2217/hep-2020-0001] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023] Open
Abstract
Liver cancer is the second most lethal cancer in the world with limited treatment options. Hepatocellular carcinoma (HCC), which accounts for more than 80% of all liver cancers, has had increasing global incidence over the past few years. There is an urgent need for novel and better therapeutic intervention for HCC patients. The JAK/STAT signaling pathway plays a multitude of important biological functions in both normal and malignant cells. In a subset of HCC, JAK/STAT signaling is aberrantly activated, leading to dysregulation of downstream target genes that controls survival, angiogenesis, stemness, immune surveillance, invasion and metastasis. In this review, we will focus on the role of JAK/STAT signaling in HCC and discuss the current clinical status of several JAK/STAT inhibitors.
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Affiliation(s)
- Justin Jit Hin Tang
- The N.1 Institute for Health (N.1), National University of Singapore, Singapore
| | - Dexter Kai Hao Thng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Jhin Jieh Lim
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Tan Boon Toh
- The N.1 Institute for Health (N.1), National University of Singapore, Singapore
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23
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Verhoeven Y, Tilborghs S, Jacobs J, De Waele J, Quatannens D, Deben C, Prenen H, Pauwels P, Trinh XB, Wouters A, Smits EL, Lardon F, van Dam PA. The potential and controversy of targeting STAT family members in cancer. Semin Cancer Biol 2020; 60:41-56. [DOI: 10.1016/j.semcancer.2019.10.002] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/30/2019] [Accepted: 10/04/2019] [Indexed: 12/13/2022]
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24
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Brachet-Botineau M, Polomski M, Neubauer HA, Juen L, Hédou D, Viaud-Massuard MC, Prié G, Gouilleux F. Pharmacological Inhibition of Oncogenic STAT3 and STAT5 Signaling in Hematopoietic Cancers. Cancers (Basel) 2020; 12:E240. [PMID: 31963765 PMCID: PMC7016966 DOI: 10.3390/cancers12010240] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 12/14/2022] Open
Abstract
Signal Transducer and Activator of Transcription (STAT) 3 and 5 are important effectors of cellular transformation, and aberrant STAT3 and STAT5 signaling have been demonstrated in hematopoietic cancers. STAT3 and STAT5 are common targets for different tyrosine kinase oncogenes (TKOs). In addition, STAT3 and STAT5 proteins were shown to contain activating mutations in some rare but aggressive leukemias/lymphomas. Both proteins also contribute to drug resistance in hematopoietic malignancies and are now well recognized as major targets in cancer treatment. The development of inhibitors targeting STAT3 and STAT5 has been the subject of intense investigations during the last decade. This review summarizes the current knowledge of oncogenic STAT3 and STAT5 functions in hematopoietic cancers as well as advances in preclinical and clinical development of pharmacological inhibitors.
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Affiliation(s)
- Marie Brachet-Botineau
- Leukemic Niche and Oxidative metabolism (LNOx), CNRS ERL 7001, University of Tours, 37000 Tours, France;
| | - Marion Polomski
- Innovation Moléculaire et Thérapeutique (IMT), EA 7501, University of Tours, 37000 Tours, France; (M.P.); (L.J.); (D.H.); (M.-C.V.-M.); (G.P.)
| | - Heidi A. Neubauer
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, A-1210 Vienna, Austria;
| | - Ludovic Juen
- Innovation Moléculaire et Thérapeutique (IMT), EA 7501, University of Tours, 37000 Tours, France; (M.P.); (L.J.); (D.H.); (M.-C.V.-M.); (G.P.)
| | - Damien Hédou
- Innovation Moléculaire et Thérapeutique (IMT), EA 7501, University of Tours, 37000 Tours, France; (M.P.); (L.J.); (D.H.); (M.-C.V.-M.); (G.P.)
| | - Marie-Claude Viaud-Massuard
- Innovation Moléculaire et Thérapeutique (IMT), EA 7501, University of Tours, 37000 Tours, France; (M.P.); (L.J.); (D.H.); (M.-C.V.-M.); (G.P.)
| | - Gildas Prié
- Innovation Moléculaire et Thérapeutique (IMT), EA 7501, University of Tours, 37000 Tours, France; (M.P.); (L.J.); (D.H.); (M.-C.V.-M.); (G.P.)
| | - Fabrice Gouilleux
- Leukemic Niche and Oxidative metabolism (LNOx), CNRS ERL 7001, University of Tours, 37000 Tours, France;
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25
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Polak KL, Chernosky NM, Smigiel JM, Tamagno I, Jackson MW. Balancing STAT Activity as a Therapeutic Strategy. Cancers (Basel) 2019; 11:cancers11111716. [PMID: 31684144 PMCID: PMC6895889 DOI: 10.3390/cancers11111716] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/23/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Driven by dysregulated IL-6 family member cytokine signaling in the tumor microenvironment (TME), aberrant signal transducer and activator of transcription (STAT3) and (STAT5) activation have been identified as key contributors to tumorigenesis. Following transformation, persistent STAT3 activation drives the emergence of mesenchymal/cancer-stem cell (CSC) properties, important determinants of metastatic potential and therapy failure. Moreover, STAT3 signaling within tumor-associated macrophages and neutrophils drives secretion of factors that facilitate metastasis and suppress immune cell function. Persistent STAT5 activation is responsible for cancer cell maintenance through suppression of apoptosis and tumor suppressor signaling. Furthermore, STAT5-mediated CD4+/CD25+ regulatory T cells (Tregs) have been implicated in suppression of immunosurveillance. We discuss these roles for STAT3 and STAT5, and weigh the attractiveness of different modes of targeting each cancer therapy. Moreover, we discuss how anti-tumorigenic STATs, including STAT1 and STAT2, may be leveraged to suppress the pro-tumorigenic functions of STAT3/STAT5 signaling.
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Affiliation(s)
- Kelsey L Polak
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Noah M Chernosky
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Jacob M Smigiel
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Ilaria Tamagno
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Mark W Jackson
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
- Case Comprehensive Cancer Center, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
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26
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Contextual Regulation of TGF-β Signaling in Liver Cancer. Cells 2019; 8:cells8101235. [PMID: 31614569 PMCID: PMC6829617 DOI: 10.3390/cells8101235] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 02/06/2023] Open
Abstract
Primary liver cancer is one of the leading causes for cancer-related death worldwide. Transforming growth factor beta (TGF-β) is a pleiotropic cytokine that signals through membrane receptors and intracellular Smad proteins, which enter the nucleus upon receptor activation and act as transcription factors. TGF-β inhibits liver tumorigenesis in the early stage by inducing cytostasis and apoptosis, but promotes malignant progression in more advanced stages by enhancing cancer cell survival, EMT, migration, invasion and finally metastasis. Understanding the molecular mechanisms underpinning the multi-faceted roles of TGF-β in liver cancer has become a persistent pursuit during the last two decades. Contextual regulation fine-tunes the robustness, duration and plasticity of TGF-β signaling, yielding versatile albeit specific responses. This involves multiple feedback and feed-forward regulatory loops and also the interplay between Smad signaling and non-Smad pathways. This review summarizes the known regulatory mechanisms of TGF-β signaling in liver cancer, and how they channel, skew and even switch the actions of TGF-β during cancer progression.
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27
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Vitobello A, Perner J, Beil J, Zhu J, Del Río-Espínola A, Morawiec L, Westphal M, Dubost V, Altorfer M, Naumann U, Mueller A, Kapur K, Borowsky M, Henderson C, Wolf CR, Schwarz M, Moggs J, Terranova R. Drug-induced chromatin accessibility changes associate with sensitivity to liver tumor promotion. Life Sci Alliance 2019; 2:e201900461. [PMID: 31615920 PMCID: PMC6795216 DOI: 10.26508/lsa.201900461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/26/2019] [Accepted: 09/26/2019] [Indexed: 12/27/2022] Open
Abstract
Liver cancer susceptibility varies amongst humans and between experimental animal models because of multiple genetic and epigenetic factors. The molecular characterization of such susceptibilities has the potential to enhance cancer risk assessment of xenobiotic exposures and disease prevention strategies. Here, using DNase I hypersensitivity mapping coupled with transcriptomic profiling, we investigate perturbations in cis-acting gene regulatory elements associated with the early stages of phenobarbital (PB)-mediated liver tumor promotion in susceptible versus resistant mouse strains (B6C3F1 versus C57BL/6J). Integrated computational analyses of strain-selective changes in liver chromatin accessibility underlying PB response reveal differential epigenetic regulation of molecular pathways associated with PB-mediated tumor promotion, including Wnt/β-catenin signaling. Complementary transcription factor motif analyses reveal mouse strain-selective gene regulatory networks and a novel role for Stat, Smad, and Fox transcription factors in the early stages of PB-mediated tumor promotion. Mapping perturbations in cis-acting gene regulatory elements provides novel insights into the molecular basis for susceptibility to xenobiotic-induced rodent liver tumor promotion and has the potential to enhance mechanism-based cancer risk assessments of xenobiotic exposures.
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Affiliation(s)
- Antonio Vitobello
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
- Inserm, Unité Mixte de Recherche (UMR) 1231, Université de Bourgogne-Franche Comté, Dijon, France
| | - Juliane Perner
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | - Johanna Beil
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | | | | | - Laurent Morawiec
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | | | - Valérie Dubost
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | - Marc Altorfer
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | - Ulrike Naumann
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | - Arne Mueller
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | - Karen Kapur
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
| | | | - Colin Henderson
- School of Medicine, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
- Innovative Medicines Initiative MARCAR Consortium (http://www.imi-marcar.eu/index.php)
| | - C Roland Wolf
- School of Medicine, Jacqui Wood Cancer Centre, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
- Innovative Medicines Initiative MARCAR Consortium (http://www.imi-marcar.eu/index.php)
| | - Michael Schwarz
- Department of Toxicology, University of Tübingen, Tübingen, Germany
- Innovative Medicines Initiative MARCAR Consortium (http://www.imi-marcar.eu/index.php)
| | - Jonathan Moggs
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
- Innovative Medicines Initiative MARCAR Consortium (http://www.imi-marcar.eu/index.php)
| | - Rémi Terranova
- Novartis Institutes for BioMedical Research (NIBR), Basel, Switzerland
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28
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Logotheti S, Pützer BM. STAT3 and STAT5 Targeting for Simultaneous Management of Melanoma and Autoimmune Diseases. Cancers (Basel) 2019; 11:cancers11101448. [PMID: 31569642 PMCID: PMC6826843 DOI: 10.3390/cancers11101448] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/16/2019] [Accepted: 09/23/2019] [Indexed: 02/07/2023] Open
Abstract
Melanoma is a skin cancer which can become metastatic, drug-refractory, and lethal if managed late or inappropriately. An increasing number of melanoma patients exhibits autoimmune diseases, either as pre-existing conditions or as sequelae of immune-based anti-melanoma therapies, which complicate patient management and raise the need for more personalized treatments. STAT3 and/or STAT5 cascades are commonly activated during melanoma progression and mediate the metastatic effects of key oncogenic factors. Deactivation of these cascades enhances antitumor-immune responses, is efficient against metastatic melanoma in the preclinical setting and emerges as a promising targeting strategy, especially for patients resistant to immunotherapies. In the light of the recent realization that cancer and autoimmune diseases share common mechanisms of immune dysregulation, we suggest that the systemic delivery of STAT3 or STAT5 inhibitors could simultaneously target both, melanoma and associated autoimmune diseases, thereby decreasing the overall disease burden and improving quality of life of this patient subpopulation. Herein, we review the recent advances of STAT3 and STAT5 targeting in melanoma, explore which autoimmune diseases are causatively linked to STAT3 and/or STAT5 signaling, and propose that these patients may particularly benefit from treatment with STAT3/STAT5 inhibitors.
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Affiliation(s)
- Stella Logotheti
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, 18057 Rostock, Germany.
| | - Brigitte M Pützer
- Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, 18057 Rostock, Germany.
- Department Life, Light & Matter, University of Rostock, 18059 Rostock, Germany.
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29
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CPAP promotes angiogenesis and metastasis by enhancing STAT3 activity. Cell Death Differ 2019; 27:1259-1273. [PMID: 31511651 PMCID: PMC7206147 DOI: 10.1038/s41418-019-0413-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/09/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022] Open
Abstract
Centrosomal P4.1-associated protein (CPAP) is overexpressed in hepatocellular carcinoma (HCC) and positively correlated with recurrence and vascular invasion. Here, we found that CPAP plays an important role in HCC malignancies. Functional characterization indicated that CPAP overexpression increases tumor growth, angiogenesis, and metastasis ex vivo and in vivo. In addition, overexpressed CPAP contributes to sorafenib resistance. Mechanical investigation showed that the expression level of CPAP is positively correlated with activated STAT3 in HCC. CPAP acts as a transcriptional coactivator of STAT3 by directly binding with STAT3. Interrupting the interaction between CPAP and STAT3 attenuates STAT3-mediated tumor growth and angiogenesis. Overexpression of CPAP upregulates several STAT3 target genes such as IL-8 and CD44 that are involved in angiogenesis, and CPAP mRNA expression is positively correlated with the levels of both mRNAs in HCC. Knocked-down expression of CPAP impairs IL-6-mediated STAT3 activation, target gene expression, cell migration, and invasion abilities. IL-6/STAT3-mediated angiogenesis is significantly increased by CPAP overexpression and can be blocked by decreased expression of IL-8. Our findings not only shed light on the importance of CPAP in HCC malignancies, but also provide potential therapeutic strategies for inhibiting the angiogenesis pathway and treating metastatic HCC.
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30
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Dong Z, Chen Y, Yang C, Zhang M, Chen A, Yang J, Huang Y. STAT gene family mRNA expression and prognostic value in hepatocellular carcinoma. Onco Targets Ther 2019; 12:7175-7191. [PMID: 31564902 PMCID: PMC6731967 DOI: 10.2147/ott.s202122] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 08/14/2019] [Indexed: 12/11/2022] Open
Abstract
Background Signal transducer and activator of transcription (STAT) proteins are well-known transcription factors that play an important role in the progression of cancer. However, the association between STAT family genes and hepatocellular carcinoma (HCC) remains unclear. This study investigates the expression level, the prognostic value and the potential mechanism of STAT family genes in HCC. Methods Data from 365 HCC patients in The Cancer Genome Atlas (TCGA) database and 241 HCC patients in the Gene Expression Omnibus (GEO) database were used to investigate the diagnostic and prognostic values of STAT genes by survival analysis and nomogram. Gene set enrichment analysis (GSEA) was used to investigate the potential mechanism of the STAT genes in the development of HCC. Results Our results showed that STAT4/5B mRNA expression levels in HCC tissues were lower than those in normal tissues. Importantly, our results indicated that high expression of STAT5A, STAT5B and STAT6 was associated with better overall survival in HCC patients. Joint effects analysis of STAT5A, STAT5B and STAT6 suggested that the prognosis difference for any combination of genes was more significant than that for any individual gene. Then, we developed a risk score model could predict HCC prognosis and the nomogram visualized gene expression and clinical factors of probability for HCC prognosis. The ROC and calibration curves showed good performance in survival prediction in both the TCGA and the GEO databases. GSEA suggested that high expression of STAT5A, STAT5B and STAT6 were involved in immune-related biological processes, drug metabolism cytochrome P450, JAK-STAT signalling pathway, and PPAR signalling pathways. Conclusion Our data suggest that STAT5A, STAT5B and STAT6 expression may be potential prognostic markers of HCC and, in combination, have a better predictive value for HCC prognosis.
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Affiliation(s)
- Zhitao Dong
- Department of Special Treatment, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, 200438, People's Republic of China
| | - Yi Chen
- Department of Hepatobiliary Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 200083, People's Republic of China
| | - Cheng Yang
- Department of Special Treatment, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, 200438, People's Republic of China
| | - Meng Zhang
- Department of Hepatobiliary Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 200083, People's Republic of China
| | - Aixue Chen
- Department of Hepatobiliary Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 200083, People's Republic of China
| | - Jiamei Yang
- Department of Special Treatment, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai, 200438, People's Republic of China
| | - Yangqing Huang
- Department of Hepatobiliary Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 200083, People's Republic of China
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31
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A Mouse Model to Assess STAT3 and STAT5A/B Combined Inhibition in Health and Disease Conditions. Cancers (Basel) 2019; 11:cancers11091226. [PMID: 31443474 PMCID: PMC6770775 DOI: 10.3390/cancers11091226] [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] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/16/2019] [Indexed: 11/17/2022] Open
Abstract
Genetically-engineered mouse models (GEMMs) lacking diseased-associated gene(s) globally or in a tissue-specific manner represent an attractive tool with which to assess the efficacy and toxicity of targeted pharmacological inhibitors. Stat3 and Stat5a/b transcription factors have been implicated in several pathophysiological conditions, and pharmacological inhibition of both transcription factors has been proposed to treat certain diseases, such as malignancies. To model combined inhibition of Stat3 and Stat5a/b we have developed a GEMM harboring a flox Stat3-Stat5a/b allele (Stat5/3loxP/loxP mice) and generated mice lacking Stat3 and Stat5a/b in hepatocytes (Stat5/3Δhep/Δhep). Stat5/3Δhep/Δhep mice exhibited a marked reduction of STAT3, STAT5A and STAT5B proteins in the liver and developed steatosis, a phenotype that resembles mice lacking Stat5a/b in hepatocytes. In addition, embryonic deletion of Stat3 and Stat5a/b (Stat5/3Δ/Δ mice) resulted in lethality, similar to Stat3Δ/Δ mice. This data illustrates that Stat5/3loxP/loxP mice are functional and can be used as a valuable tool to model the combined inhibition of Stat3 and Stat5a/b in tumorigenesis and other diseases.
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32
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A novel STAT3 inhibitor, STX-0119, attenuates liver fibrosis by inactivating hepatic stellate cells in mice. Biochem Biophys Res Commun 2019; 513:49-55. [PMID: 30935693 DOI: 10.1016/j.bbrc.2019.03.156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 03/23/2019] [Indexed: 12/26/2022]
Abstract
Liver fibrosis is characterized by formation of scar tissue in the liver. The role of STAT3 signaling has been implicated on activating hepatic stellate cells (HSC) to myofibroblast-like cells in liver fibrosis. Major factors that activate STAT3 signaling are TGF-β1 and IL-6, which are upregulated in the liver in patients afflicted with liver fibrosis. Recent reports indicate that not only IL-6, but also the non-canonical signaling pathway of TGF-β1 is associated with STAT3 signaling. In this study, we demonstrate a new function of the STAT3 inhibitor, STX-0119, in liver fibrosis. STX-0119 is an inhibitor of STAT3 dimerization, which is required for nuclear localization of STAT3. We first investigated the anti-fibrotic effect of STX-0119 in in vitro experiments. Exposure to STX-0119 inhibited the nuclear localization of STAT3 in HSCs, resulting in decreased expression of its target genes, such as col1a1 and αSMA. In addition, STX-0119 also inhibited the TGF-β1/IL-6-induced activation of HSCs. Next, we examined the in vivo effect of STX-0119 in the liver fibrosis mouse model using thioacetamide (TAA) and carbon tetrachloride (CCl4). STX-0119 attenuated the TAA-induced liver fibrosis by inhibiting activation of HSCs to myofibroblast-like cells. Consistent with the in vivo results using TAA-induced liver fibrosis model, treatment of STX-0119 similarly attenuated CCl4-induced liver fibrosis. In conclusion, we believe that STX-0119 inhibits the development of liver fibrosis by blocking the activation of hepatic stellate cells. These results indicate that STX-0119 is a potential new therapeutic strategy to prevent disease progression to cirrhosis.
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33
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Kaltenecker D, Themanns M, Mueller KM, Spirk K, Suske T, Merkel O, Kenner L, Luís A, Kozlov A, Haybaeck J, Müller M, Han X, Moriggl R. Hepatic growth hormone - JAK2 - STAT5 signalling: Metabolic function, non-alcoholic fatty liver disease and hepatocellular carcinoma progression. Cytokine 2018; 124:154569. [PMID: 30389231 DOI: 10.1016/j.cyto.2018.10.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/05/2018] [Accepted: 10/11/2018] [Indexed: 12/12/2022]
Abstract
The rising prevalence of obesity came along with an increase in associated metabolic disorders in Western countries. Non-alcoholic fatty liver disease (NAFLD) represents the hepatic manifestation of the metabolic syndrome and is linked to primary stages of liver cancer development. Growth hormone (GH) regulates various vital processes such as energy supply and cellular regeneration. In addition, GH regulates various aspects of liver physiology through activating the Janus kinase (JAK) 2- signal transducer and activator of transcription (STAT) 5 pathway. Consequently, disrupted GH - JAK2 - STAT5 signaling in the liver alters hepatic lipid metabolism and is associated with NAFLD development in humans and mouse models. Interestingly, while STAT5 as well as JAK2 deficiency correlates with hepatic lipid accumulation, recent studies suggest that these proteins have unique ambivalent functions in chronic liver disease progression and tumorigenesis. In this review, we focus on the consequences of altered GH - JAK2 - STAT5 signaling for hepatic lipid metabolism and liver cancer development with an emphasis on lessons learned from genetic knockout models.
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Affiliation(s)
- Doris Kaltenecker
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Madeleine Themanns
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Medical University of Vienna, Vienna, Austria
| | - Kristina M Mueller
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Katrin Spirk
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Medical University of Vienna, Vienna, Austria
| | - Tobias Suske
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Olaf Merkel
- Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - Lukas Kenner
- Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria; Institute of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Andreia Luís
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Andrey Kozlov
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Johannes Haybaeck
- Diagnostic & Research Center for Molecular BioMedicine, Institute of Pathology, Medical University of Graz, Austria; Department of Pathology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany; Department of Pathology, Medical University of Innsbruck, Innsbruck, Austria
| | - Mathias Müller
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Xiaonan Han
- Key Laboratory of Human Disease Comparative Medicine, the Ministry of Health; Institute of Laboratory Animal Sciences (ILAS), Chinese Academy of Medical Science (CAMS) and Peking Union Medical College (PUMC), Beijing, PR China; Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, USA
| | - Richard Moriggl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Medical University of Vienna, Vienna, Austria.
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Kaltenecker D, Themanns M, Mueller KM, Spirk K, Golob-Schwarzl N, Friedbichler K, Kenner L, Haybaeck J, Moriggl R. STAT5 deficiency in hepatocytes reduces diethylnitrosamine-induced liver tumorigenesis in mice. Cytokine 2018; 124:154573. [PMID: 30377054 DOI: 10.1016/j.cyto.2018.10.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/03/2018] [Accepted: 10/18/2018] [Indexed: 02/06/2023]
Abstract
Chronic liver diseases and the development of hepatocellular carcinoma are closely linked and pose a major medical challenge as treatment options are limited. Animal studies have shown that genetic deletion of the signal transducer and activator of transcription (STAT) 5 in liver is associated with higher susceptibility to fatty liver disease, fibrosis and cancer, indicating a protective role of hepatic STAT5 in mouse models of chronic liver disease. To investigate the role of STAT5 in the etiology of liver cancer in more detail, we applied the chemical carcinogen diethylnitrosamine (DEN) to mice harboring a hepatocyte-specific deletion of Stat5 (S5KO). At 8 months after DEN injections, tumor formation in S5KO was significantly reduced. This was associated with diminished tumor frequency and less aggressive liver cancer progression. Apoptosis and inflammation markers were not changed in S5KO livers suggesting that the reduced tumor burden was not due to impaired inflammatory response. Despite reduced mRNA expression of the DEN bio-activator cytochrome P450 2e1 (Cyp2e1) in S5KO livers, protein levels were similar. Yet, delayed tumor formation in S5KO mice coincided with decreased activation of c-Jun N-terminal Kinase (JNK). Taken together, while STAT5 has a protective role in fatty liver-associated liver cancer, it exerts oncogenic functions in DEN-induced liver cancer.
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Affiliation(s)
- Doris Kaltenecker
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Madeleine Themanns
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Kristina M Mueller
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Katrin Spirk
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria
| | - Nicole Golob-Schwarzl
- Center for Biomarker Research in Medicine, Graz, Austria; Diagnostic & Research Center for Molecular BioMedicine, Institute of Pathology, Medical University of Graz, Graz, Austria
| | | | - Lukas Kenner
- Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Department of Clinical Pathology, Medical University of Vienna, Vienna, Austria; Unit of Pathology of Laboratory Animals, University of Veterinary Medicine, Vienna, Austria; CBMed Core Lab2, Medical University of Vienna, Vienna, Austria
| | - Johannes Haybaeck
- Diagnostic & Research Center for Molecular BioMedicine, Institute of Pathology, Medical University of Graz, Graz, Austria; Department of Pathology, Medical Faculty, Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Department of Pathology, Medical University of Innsbruck, Innsbruck, Austria
| | - Richard Moriggl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria; Medical University of Vienna, Vienna, Austria.
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Farouk S, Sabet S, Abu Zahra FA, El-Ghor AA. Bone marrow derived-mesenchymal stem cells downregulate IL17A dependent IL6/STAT3 signaling pathway in CCl4-induced rat liver fibrosis. PLoS One 2018; 13:e0206130. [PMID: 30346985 PMCID: PMC6197688 DOI: 10.1371/journal.pone.0206130] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 10/08/2018] [Indexed: 12/20/2022] Open
Abstract
Therapeutic potential of bone marrow–derived mesenchymal stem cells (BM-MSCs) has been reported in several animal models of liver fibrosis. Interleukin (IL) 17A, IL6 and Stat3 have been described to play crucial roles in chronic liver injury. However, the modulatory effect of MSCs on these markers was controversial in different diseases. BM-MSCs might activate the IL6/STAT3 signaling pathway and promote cell invasion in hepatocellular carcinoma, but the immunomodulatory role of BM-MSCs on IL17A/IL6/STAT3 was not fully elucidated in liver fibrosis. In the present study, we evaluated the capacity of the BM-MSCs in the modulation of cytokines milieu and signal transducers, based on unique inflammatory genes Il17a and Il17f and their receptors Il17rc and their effect on the IL6/STAT3 pathway in CCl4-induced liver fibrosis in rats. A single dose of BM-MSCs was administered to the group with induced liver fibrosis, and the genes and proteins of interest were evaluated along six weeks after treatment. Our results showed a significant downregulation of Il17a, Il17ra, il17f and Il17rc genes. In accordance, BM-MSCs administration declined IL17, IL2 and IL6 serum proteins and downregulated IL17A and IL17RA proteins in liver tissue. Interestingly, BM-MSCs downregulated both Stat3 mRNA expression and p-STAT3, while Stat5a gene was downregulated and p-STAT5 protein was elevated. Also P-SMAD3 and TGFβR2 proteins were downregulated in response to BM-MSCs treatment. Collectively, we suggest that BM-MSCs might play an immunomodulatory role in the treatment of liver fibrosis through downregulation of IL17A affecting IL6/STAT3 signaling pathway.
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Affiliation(s)
- Shimaa Farouk
- Department of Biology and Biotechnologies, Faculty of Science & Technology, AL-Neelain University, Khartoum, Sudan
| | - Salwa Sabet
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
- * E-mail:
| | - Fatma A. Abu Zahra
- Medical Research Center, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Akmal A. El-Ghor
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
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Kober P, Boresowicz J, Rusetska N, Maksymowicz M, Goryca K, Kunicki J, Bonicki W, Siedlecki JA, Bujko M. DNA methylation profiling in nonfunctioning pituitary adenomas. Mol Cell Endocrinol 2018; 473:194-204. [PMID: 29410024 DOI: 10.1016/j.mce.2018.01.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/21/2017] [Accepted: 01/29/2018] [Indexed: 01/08/2023]
Abstract
Nonfunctioning pituitary adenomas (NFPAs) are among the most frequent intracranial tumors but their molecular background, including changes in epigenetic regulation, remains poorly understood. We performed genome-wide DNA methylation profiling of 34 NFPAs and normal pituitary samples. Methylation status of the selected genomic regions and expression level of corresponding genes were assessed in a group of 75 patients. NFPAs exhibited distinct global methylation profile as compared to normal pituitary. Aberrant DNA methylation appears to contribute to deregulation of the cancer-related pathways as shown by preliminary functional analysis. Promoter hypermethylation and decreased expression level of SFN, STAT5A, DUSP1, PTPRE and FGFR2 was confirmed in the enlarged group of NFPAs. Difference in the methylation profiles between invasive and non-invasive NFPAs is very slight. Nevertheless, invasiveness-related aberrant epigenetic deregulation of the particular genes was found including upregulation of ITPKB and downregulation CNKSR1 in invasive tumors.
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Affiliation(s)
- Paulina Kober
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Joanna Boresowicz
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland; Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland; Faculty of Mathematics, Informatics and Mechanics, University of Warsaw, Warsaw, Poland
| | - Nataliia Rusetska
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Maria Maksymowicz
- Department of Pathology and Laboratory Diagnostics, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Krzysztof Goryca
- Department of Genetics, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Jacek Kunicki
- Department of Neurosurgery, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Wiesław Bonicki
- Department of Neurosurgery, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Janusz Aleksander Siedlecki
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Mateusz Bujko
- Department of Molecular and Translational Oncology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland.
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Han S, Ding S, Miao X, Lin Z, Lu G, Xiao W, Ding Y, Qian L, Zhang Y, Jia X, Zhu G, Gong W. TGF-β1 expression in regulatory NK1.1 -CD4 +NKG2D + T cells dependents on the PI3K-p85α/JNK, NF-κB and STAT3 pathways. Am J Cancer Res 2018; 8:489-501. [PMID: 29637003 PMCID: PMC5883098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 02/25/2018] [Indexed: 06/08/2023] Open
Abstract
NK1.1-CD4+NKG2D+ cells exert their immune-regulatory function in tumor as an unconventional regulatory T cell subset through the production of TGF-β1; however, the molecular mechanisms involving with the activation of nuclear factors for TGF-β1 transcription remain unclear. Here we determined that the PI3K-p85α subunit was specifically activated in NK1.1-CD4+NKG2D+ cells following an 8-hour stimulation by sRAE-1 or α-CD3/sRAE-1, subsequently leading to the activation of PI3K-p110, Akt, and JNK. On the contrary, α-CD3/α-CD28 stimulation did not induce the activation of PI3K-p85 and JNK. Consequently, activation of the nuclear transcription factor AP-1 as a consequence of JNK activation regulated TGF-β1 expression in NK1.1-CD4+NKG2D+ cells. Furthermore, activation of NF-κB in NK1.1-CD4+NKG2D+ cells resulted from both protein kinase C activation downstream of TCR/CD3 signaling and PI3K activation induced by NKG2D engagement. The STAT3-Y705 phosphorylation, as activated by PI3K, under stimulations of the sRAE-1 or α-CD3/sRAE-1 also contributed to the TGF-β1 expression in NK1.1-CD4+NKG2D+ cells. Moreover, ChIP assay confirmed that STAT3 was capable of binding with the promoter regions of TGF-β1. In conclusion, our data showed that the TGF-β1 transcription in NK1.1-CD4+NKG2D+ cells induced by sRAE-1 or α-CD3/sRAE-1 was involved with the AP-1, NF-κB, and STAT3 signaling pathways; therefore, regulation of AP-1, NF-κB, and STAT3 activation may play important roles in the development and function of NK1.1-CD4+NKG2D+ cells.
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Affiliation(s)
- Sen Han
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Shizhen Ding
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Xin Miao
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Zhijie Lin
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Guotao Lu
- Department of Gastroenterology, The Affiliated Hospital, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Weiming Xiao
- Department of Gastroenterology, The Affiliated Hospital, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Yanbing Ding
- Department of Gastroenterology, The Affiliated Hospital, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Li Qian
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
| | - Yu Zhang
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile DiseasesP. R. China
| | - Xiaoqin Jia
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile DiseasesP. R. China
| | - Guoqiang Zhu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesP. R. China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou UniversityYangzhou 225009, P. R. China
| | - Weijuan Gong
- Department of Immunology, School of Medicine, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
- Department of Gastroenterology, The Affiliated Hospital, Yangzhou UniversityYangzhou, Jiangsu Province, P. R. China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile DiseasesP. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesP. R. China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou UniversityYangzhou 225009, P. R. China
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Abu El Makarem MA, El-Sagheer GM, Abu El-Ella MA. The Role of Signal Transducer and Activator of Transcription 5 and Transforming Growth Factor-β1 in Hepatic Fibrosis Induced by Chronic Hepatitis C Virus Infection in Egyptian Patients. Med Princ Pract 2018; 27:115-121. [PMID: 29402841 PMCID: PMC5968251 DOI: 10.1159/000487308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 01/31/2018] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To investigate the possible role of signal transducer and activator of transcription 5 (STAT5) in the pathogenesis of liver fibrosis in Egyptian patients with chronic hepatitis C (CHC) virus infection and its relation to hepatic stellate cells (HSC). SUBJECTS AND METHODS Sixty-five patients (46 males and 19 females) were divided into 4 groups based on the severity of fibrosis as detected by Fibroscan as follows: F1, n = 15; F2, n = 21; F3, n = 13; and F4, n = 16. Twenty age- and gender-matched healthy persons volunteered as controls. The serum levels of STAT5, TGF-β1, α-smooth muscle actin (α-SMA), fasting blood sugar, and fasting insulin, as well as homeostasis model assessment of insulin resistance (HOMA-IR), were determined and compared for all groups. The usefulness of the studied serum biomarkers for predicting liver fibrosis was evaluated using a receiver operating characteristic curve. RESULTS Serum levels of STAT5 were significantly lower in patients compared to controls (9.69 ± 5.62 vs. 14.73 ± 6.52, p ≤ 0.001); on the contrary, TGF-β1, α-SMA, and HOMA-IR were significantly higher in patients compared to controls (mean: 1,796.04 vs. 1,636.94; 14.94 vs. 8.1; and 7.91 vs. 4.18; p ≤ 0.01 and 0.001, respectively). TGF-β1 and α-SMA showed a progressive increase with advancing severity of hepatic fibrosis (mean TGF-β1: 2,058.4 in F1-F2 and 1,583.8 in F3-F4, p ≤ 0.04; mean α-SMA: 13.59 in F1-F2 and 16.62 in F3-F4, p ≤ 0.05). STAT5 had a significant negative correlation with TGF-β1 (p ≤ 0.001), while no correlation was detected with α-SMA (p ≤ 0.8). CONCLUSIONS STAT5 may play a significant role in hepatic fibrogenesis through the induction of TGF-β1 but not through the activation of hepatic stellate cells.
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Affiliation(s)
- Mona A. Abu El Makarem
- Hepatology Unit, Department of Internal Medicine, Minia University Hospital, El-Minia, Egypt
| | - Ghada M. El-Sagheer
- Endocrinology Unit, Department of Internal Medicine, Minia University Hospital, El-Minia, Egypt
- *Ghada M. El Sagheer, Department of Internal Medicine, Minia University Hospital, 12-M. Badawy St., El-Minia 61111 (Egypt), E-Mail
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Fibroblast growth factor 21 ameliorates high glucose-induced fibrogenesis in mesangial cells through inhibiting STAT5 signaling pathway. Biomed Pharmacother 2017; 93:695-704. [DOI: 10.1016/j.biopha.2017.06.100] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/12/2017] [Accepted: 06/29/2017] [Indexed: 12/30/2022] Open
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40
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Elevated serum antibody against Schistosoma japonicum HSP60 as a promising biomarker for liver pathology in schistosomiasis. Sci Rep 2017; 7:7765. [PMID: 28798366 PMCID: PMC5552731 DOI: 10.1038/s41598-017-08283-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 07/07/2017] [Indexed: 12/15/2022] Open
Abstract
The pathology associated with Schistosoma japonicum (S. japonicum) infection in humans is attributed to parasite egg-induced granulomatous inflammation and fibrosis in the host liver. Currently, a marker that is reliable, cheap, less device-dependent, and can be easily and repeatedly used on a large scale to monitor the progression of liver pathology in schistosomiasis japonica endemic areas is lacking. The levels of serum S. japonicum heat shock protein 60 (SjHSP60)-specific IgG and its subtype antibodies in animals (mice and rabbits) or patients with schistosomiasis were measured by ELISA. Liver pathologies in mice and rabbits were evaluated by gross pathology and histopathology, and hepatic fibrosis in patients was examined with ultrasound imaging. The results revealed that the titers of the total IgG and subtype IgG1 anti-SjHSP60 antibodies were positively correlated with the severity of liver pathology after S. japonicum infection. Our findings indicate that the SjHSP60 IgG and IgG1 antibody levels can be used as potential candidate biomarkers for evaluation of liver pathology in schistosomiasis; however, validation remains to be explored in further work.
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Klungboonkrong V, Das D, McLennan G. Molecular Mechanisms and Targets of Therapy for Hepatocellular Carcinoma. J Vasc Interv Radiol 2017; 28:949-955. [PMID: 28416267 DOI: 10.1016/j.jvir.2017.03.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 03/01/2017] [Accepted: 03/01/2017] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. HCC develops through a multistep process that involves the local tumor microenvironment, intracellular signaling pathways, and altered metabolic system that allows the cancer proliferation. Understanding the mechanisms of tumor development and progression is critical to developing improved therapies aimed at better survival. This article reviews the molecular mechanisms of HCC development and highlights the potential therapeutic targets for treatments.
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Affiliation(s)
- Vivian Klungboonkrong
- Department of Interventional Radiology, Imaging Institute, Cleveland, OH 44195; Department of Radiology, KhonKaen University, KhonKaen, Thailand
| | - Dola Das
- Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195
| | - Gordon McLennan
- Department of Interventional Radiology, Imaging Institute, Cleveland, OH 44195.
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42
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Able AA, Burrell JA, Stephens JM. STAT5-Interacting Proteins: A Synopsis of Proteins that Regulate STAT5 Activity. BIOLOGY 2017; 6:biology6010020. [PMID: 28287479 PMCID: PMC5372013 DOI: 10.3390/biology6010020] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 01/17/2023]
Abstract
Signal Transducers and Activators of Transcription (STATs) are key components of the JAK/STAT pathway. Of the seven STATs, STAT5A and STAT5B are of particular interest for their critical roles in cellular differentiation, adipogenesis, oncogenesis, and immune function. The interactions of STAT5A and STAT5B with cytokine/hormone receptors, nuclear receptors, transcriptional regulators, proto-oncogenes, kinases, and phosphatases all contribute to modulating STAT5 activity. Among these STAT5 interacting proteins, some serve as coactivators or corepressors to regulate STAT5 transcriptional activity and some proteins can interact with STAT5 to enhance or repress STAT5 signaling. In addition, a few STAT5 interacting proteins have been identified as positive regulators of STAT5 that alter serine and tyrosine phosphorylation of STAT5 while other proteins have been identified as negative regulators of STAT5 via dephosphorylation. This review article will discuss how STAT5 activity is modulated by proteins that physically interact with STAT5.
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Affiliation(s)
- Ashley A Able
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Jasmine A Burrell
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Jacqueline M Stephens
- Adipocyte Biology Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
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43
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Lee YS, Park Y, Kwon M, Roh JL, Choi SH, Nam SY, Kim SY. Expression of Lysyl Oxidase Predictive of Distant Metastasis of Laryngeal Cancer. Otolaryngol Head Neck Surg 2017; 156:489-497. [DOI: 10.1177/0194599816685698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective To investigate the prognostic significance of lysyl oxidase (LOX) expression in laryngeal cancer. Study Design Retrospective chart review and histologic analysis. Setting Tertiary referral academic center. Subjects and Methods Patients (N = 100) underwent surgical treatment for laryngeal cancer and had tissue specimens available. Immunohistochemical staining for LOX was performed on laryngeal cancer tissue microarrays, and the proportion and intensity of staining were evaluated. Patients with LOX scores ≤6 were classified into the low LOX group, while those with scores >6 were classified into the high LOX group. We analyzed the correlation between LOX expression and clinical factors as well as prognosis. Results LOX was predominantly expressed in the cytoplasm and nuclei of tumor cells. Kaplan-Meier analysis revealed that the high LOX group had worse overall survival and recurrence-free survival rates than the low LOX group ( P < .05). LOX expression exhibited marginally significant correlation with lymph node metastasis. In the Cox regression analysis, LOX expression and lymph node metastasis were significant factors correlated with overall survival rate (odds ratio [OR] = 3.92, 95% confidence interval [95% CI]: 1.35-11.37, P = .012; OR = 1.96, 95% CI: 0.93-1.43, P = .024, respectively). LOX expression was related to distant metastasis free survival rate (OR = 7.72, 95% CI: 1.02-19.18, P = .048). Conclusion A high expression level of LOX is associated with lymph node and distant metastasis as well as poor prognosis among patients with laryngeal cancer.
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Affiliation(s)
- Yoon Se Lee
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Yangsoon Park
- Department of Pathology, College of Medicine, University of Ulsan, Seoul, Korea
| | - Minsu Kwon
- Department of Otolaryngology, Kyeongsang National University Hospital, Jinju, Korea
| | - Jong-Lyel Roh
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Seung-Ho Choi
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Soon Yuhl Nam
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Sang Yoon Kim
- Department of Otolaryngology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
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Shi SY, Luk CT, Schroer SA, Kim MJ, Dodington DW, Sivasubramaniyam T, Lin L, Cai EP, Lu SY, Wagner KU, Bazinet RP, Woo M. Janus Kinase 2 (JAK2) Dissociates Hepatosteatosis from Hepatocellular Carcinoma in Mice. J Biol Chem 2017; 292:3789-3799. [PMID: 28100771 DOI: 10.1074/jbc.m116.752519] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 12/29/2016] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma is an end-stage complication of non-alcoholic fatty liver disease (NAFLD). Inflammation plays a critical role in the progression of non-alcoholic fatty liver disease and the development of hepatocellular carcinoma. However, whether steatosis per se promotes liver cancer, and the molecular mechanisms that control the progression in this disease spectrum remain largely elusive. The Janus kinase signal transducers and activators of transcription (JAK-STAT) pathway mediates signal transduction by numerous cytokines that regulate inflammation and may contribute to hepatocarcinogenesis. Mice with hepatocyte-specific deletion of JAK2 (L-JAK2 KO) develop extensive fatty liver spontaneously. We show here that this simple steatosis was insufficient to drive carcinogenesis. In fact, L-JAK2 KO mice were markedly protected from chemically induced tumor formation. Using the methionine choline-deficient dietary model to induce steatohepatitis, we found that steatohepatitis development was completely arrested in L-JAK2 KO mice despite the presence of steatosis, suggesting that JAK2 is the critical factor required for inflammatory progression in the liver. In line with this, L-JAK2 KO mice exhibited attenuated inflammation after chemical carcinogen challenge. This was associated with increased hepatocyte apoptosis without elevated compensatory proliferation, thus thwarting expansion of transformed hepatocytes. Taken together, our findings identify an indispensable role of JAK2 in hepatocarcinogenesis through regulating critical inflammatory pathways. Targeting the JAK-STAT pathway may provide a novel therapeutic option for the treatment of hepatocellular carcinoma.
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Affiliation(s)
- Sally Yu Shi
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada.,the Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Cynthia T Luk
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada.,the Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Stephanie A Schroer
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada
| | - Min Jeong Kim
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada.,the Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Korea
| | - David W Dodington
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada
| | - Tharini Sivasubramaniyam
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada.,the Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Lauren Lin
- the Department of Nutritional Sciences, University of Toronto, Toronto, Ontario M5S 3E2, Canada
| | - Erica P Cai
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada.,the Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Shun-Yan Lu
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada
| | - Kay-Uwe Wagner
- the Eppley Institute for Research in Cancer and Allied Diseases and the Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, and
| | - Richard P Bazinet
- the Department of Nutritional Sciences, University of Toronto, Toronto, Ontario M5S 3E2, Canada
| | - Minna Woo
- From the Toronto General Hospital Research Institute, Toronto, Ontario M5G 2C4, Canada, .,the Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,the Division of Endocrinology, Department of Medicine, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario M5G 1L7, Canada
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Bansal S, Biggar KK, Krivoruchko A, Storey KB. Response of the JAK-STAT signaling pathway to oxygen deprivation in the red eared slider turtle, Trachemys scripta elegans. Gene 2016; 593:34-40. [DOI: 10.1016/j.gene.2016.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/29/2016] [Accepted: 08/04/2016] [Indexed: 12/30/2022]
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Hepatic Deletion of Janus Kinase 2 Counteracts Oxidative Stress in Mice. Sci Rep 2016; 6:34719. [PMID: 27713471 PMCID: PMC5054456 DOI: 10.1038/srep34719] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/19/2016] [Indexed: 12/13/2022] Open
Abstract
Genetic deletion of the tyrosine kinase JAK2 or the downstream transcription factor STAT5 in liver impairs growth hormone (GH) signalling and thereby promotes fatty liver disease. Hepatic STAT5 deficiency accelerates liver tumourigenesis in presence of high GH levels. To determine whether the upstream kinase JAK2 exerts similar functions, we crossed mice harbouring a hepatocyte-specific deletion of JAK2 (JAK2Δhep) to GH transgenic mice (GHtg) and compared them to GHtgSTAT5Δhep mice. Similar to GHtgSTAT5Δhep mice, JAK2 deficiency resulted in severe steatosis in the GHtg background. However, in contrast to STAT5 deficiency, loss of JAK2 significantly delayed liver tumourigenesis. This was attributed to: (i) activation of STAT3 in STAT5-deficient mice, which was prevented by JAK2 deficiency and (ii) increased detoxification capacity of JAK2-deficient livers, which diminished oxidative damage as compared to GHtgSTAT5Δhep mice, despite equally severe steatosis and reactive oxygen species (ROS) production. The reduced oxidative damage in JAK2-deficient livers was linked to increased expression and activity of glutathione S-transferases (GSTs). Consistent with genetic deletion of Jak2, pharmacological inhibition and siRNA-mediated knockdown of Jak2 led to significant upregulation of Gst isoforms and to reduced hepatic oxidative DNA damage. Therefore, blocking JAK2 function increases detoxifying GSTs in hepatocytes and protects against oxidative liver damage.
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Fu B, Meng W, Zhao H, Zhang B, Tang H, Zou Y, Yao J, Li H, Zhang T. GRAM domain-containing protein 1A (GRAMD1A) promotes the expansion of hepatocellular carcinoma stem cell and hepatocellular carcinoma growth through STAT5. Sci Rep 2016; 6:31963. [PMID: 27585821 PMCID: PMC5009375 DOI: 10.1038/srep31963] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/27/2016] [Indexed: 12/21/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the leading cause for cancer death worldwide, new prognostic factors and targets are critical for HCC treatment. Here, we found GRAMD1A was upregulated in HCC tissues, patients with high GRAMD1A levels had poor outcome, statistical analyses found GRAMD1A expression was positively correlated with pathologic differentiation and survival or mortality. It was an unfavorable prognostic factor for HCC patients. Functional analyses revealed GRAMD1A contributed to the self-renewal of HCC stem cells, resistance to chemotherapy and tumor growth of HCC determined by hepatosphere formation assay, side population (SP) analysis, TUNEL assay, soft agar growth ability assay and tumor growth model in vivo. Mechanism analyses found signal transducer and activator of transcription 5 (STAT5) was the target of GRAMD1A, GRAMD1A regulated the target genes of STAT5 and the transcriptional activity of STAT5. Inhibition of STAT5 in indicated HCC cells overexpressing GRAMD1A suppressed the effects of GRAMD1A on the self-renewal of HCC stem cell, resistance to chemotherapy and tumor growth, suggesting GRAMD1A promoted the self-renewal of HCC stem cells and the development of HCC by increasing STAT5 level. GRAMD1A might be a useful biomarker and target for HCC.
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MESH Headings
- Animals
- Carcinoma, Hepatocellular/complications
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/mortality
- Carcinoma, Hepatocellular/pathology
- Cell Line, Tumor
- Cell Self Renewal/physiology
- Disease Progression
- Drug Resistance, Neoplasm/physiology
- Female
- Gene Expression Regulation, Neoplastic
- Hepatitis B, Chronic/complications
- Heterografts
- Humans
- Kaplan-Meier Estimate
- Liver Neoplasms/complications
- Liver Neoplasms/genetics
- Liver Neoplasms/mortality
- Liver Neoplasms/pathology
- Membrane Proteins/physiology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Neoplasm Proteins/physiology
- Neoplastic Stem Cells/pathology
- STAT5 Transcription Factor/biosynthesis
- STAT5 Transcription Factor/genetics
- STAT5 Transcription Factor/physiology
- Transcription, Genetic
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Affiliation(s)
- Binsheng Fu
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
| | - Wei Meng
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
| | - Hui Zhao
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
| | - Bing Zhang
- Department of Medical Imaging, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Hui Tang
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
| | - Ying Zou
- Department of Medical Oncology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Jia Yao
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
| | - Heping Li
- Department of Medical Oncology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Tong Zhang
- Department of Hepatic Surgery, Liver Transplant Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Liver Transplantation Center of Sun Yat-sen University, Guangzhou 510630, P. R. China
- Organ Transplantation Institute of Guangdong Province, Guangzhou 510630, P. R. China
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Wang P, Deng L, Zhuang C, Cheng C, Xu K. p-CREB-1 promotes hepatic fibrosis through the transactivation of transforming growth factor-β1 expression in rats. Int J Mol Med 2016; 38:521-8. [PMID: 27279449 DOI: 10.3892/ijmm.2016.2630] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 05/31/2016] [Indexed: 11/06/2022] Open
Abstract
Phosphorylated cAMP-responsive element binding protein-1 (p-CREB-1) is an important transcription factor which has been reported to be implicated in fibrogenesis. However, the association between p-CREB-1 and transforming growth factor-β1 (TGF-β1)-mediated liver fibrogenesis remains poorly understood. In the present study, exogenous TGF-β1 recombinant protein was used to activate hepatic stellate cells (HSCs), and we established a rat model of tetrachloromethane (CCl4)‑induced liver fibrosis. Loss- and gain-of-function studies were performed to examine the role of p-CREB-1 in liver fibrogenesis, and the detailed mechanism responsible for these effects was further explored using chromatin immunoprecipitation and luciferase reporter gene assays. We found that p-CREB-1 expression was significantly upregulated in a rat model of hepatic fibrosis. We also demonstrated that p-CREB-1 increased TGF-β1 expression and auto‑induction in HSCs, through directly binding to the CRE site within the TGF-β1 promoter in order to enhance its transcriptional activity. Moreover, lentivirus-mediated CREB-1 overexpression promoted hepatic fibrogenesis in rats. These findings suggest that p-CREB-1 may function as a potent profibrogenic factor through the transactivation of TGF-β1 expression in liver fibrosis.
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Affiliation(s)
- Pei Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Liang Deng
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Chunbo Zhuang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Chunwei Cheng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Keshu Xu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Rao R, Yang Q, Orman MA, Berthiaume F, Ierapetritou MG, Androulakis IP. Burn trauma disrupts circadian rhythms in rat liver. INTERNATIONAL JOURNAL OF BURNS AND TRAUMA 2016; 6:12-25. [PMID: 27335693 PMCID: PMC4913229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 04/29/2016] [Indexed: 06/06/2023]
Abstract
Circadian rhythms play an important role in maintaining homeostasis and solid organ function. The purpose of this study is to assess the implications of burn injury in rats on the underlying circadian patterns of gene expression in liver. Circadian-regulated genes and burn-induced genes were identified by applying consensus clustering methodology to temporally differentially expressed probe sets obtained from burn and sham-burn data sets. Of the liver specific genes which we hypothesize that exhibit circadian rhythmicity, 88% are not differentially expressed following the burn injury. Specifically, the vast majority of the circadian regulated-genes representing central carbon and nitrogen metabolism are "up-regulated" after the burn injury, indicating the onset of hypermetabolism. In addition, cell-cell junction and membrane structure related genes showing rhythmic behavior in the control group were not differentially expressed across time in the burn group, which could be an indication of hepatic damage due to the burn. Finally, the suppression of the immune function related genes is observed in the postburn phase, implying the severe "immunosuppression". Our results demonstrated that the short term response (24-h post injury) manifests a loss of circadian variability possibly compromising the host in terms of subsequent challenges.
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Affiliation(s)
- Rohit Rao
- Chemical and Biochemical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
| | - Qian Yang
- Chemical and Biochemical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
| | - Mehmet A Orman
- Chemical and Biochemical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
| | - Francois Berthiaume
- Biomedical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
| | - Marianthi G Ierapetritou
- Chemical and Biochemical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
| | - Ioannis P Androulakis
- Chemical and Biochemical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
- Biomedical Engineering Department, Rutgers, The State University of New JerseyPiscataway, NJ 08854, USA
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50
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Muscle-specific deletion of signal transducer and activator of transcription 5 augments lipid accumulation in skeletal muscle and liver of mice in response to high-fat diet. Eur J Nutr 2015; 56:569-579. [DOI: 10.1007/s00394-015-1101-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 11/09/2015] [Indexed: 12/18/2022]
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