1
|
Shen YX, Lee PS, Wang CC, Teng MC, Huang JH, Fan HF. Exploring the Cellular Impact of Size-Segregated Cigarette Aerosols: Insights into Indoor Particulate Matter Toxicity and Potential Therapeutic Interventions. Chem Res Toxicol 2024; 37:1171-1186. [PMID: 38870402 PMCID: PMC11256904 DOI: 10.1021/acs.chemrestox.4c00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/30/2024] [Accepted: 06/03/2024] [Indexed: 06/15/2024]
Abstract
Exposure to anthropogenic aerosols has been associated with a variety of adverse health effects, increased morbidity, and premature death. Although cigarette smoke poses one of the most significant public health threats, the cellular toxicity of particulate matter contained in cigarette smoke has not been systematically interrogated in a size-segregated manner. In this study, we employed a refined particle size classification to collect cigarette aerosols, enabling a comprehensive assessment and comparison of the impacts exerted by cigarette aerosol extract (CAE) on SH-SY5Y, HEK293T, and A549 cells. Exposure to CAE reduced cell viability in a dose-dependent manner, with organic components having a greater impact and SH-SY5Y cells displaying lower tolerance compared to HEK293T and A549 cells. Moreover, CAE was found to cause increased oxidative stress, mitochondrial dysfunction, and increased levels of apoptosis, pyroptosis, and autophagy, leading to increased cell death. Furthermore, we found that rutin, a phytocompound with antioxidant potential, could reduce intracellular reactive oxygen species and protect against CAE-triggered cell death. These findings underscore the therapeutic potential of antioxidant drugs in mitigating the adverse effects of cigarette aerosol exposure for better public health outcomes.
Collapse
Affiliation(s)
- Yu-Xin Shen
- Institute
of Medical Science and Technology, National
Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| | - Pe-Shuen Lee
- Institute
of Medical Science and Technology, National
Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| | - Chia C. Wang
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| | - Ming-Chu Teng
- Institute
of Medical Science and Technology, National
Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| | - Jhih-Hong Huang
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| | - Hsiu-Fang Fan
- Institute
of Medical Science and Technology, National
Sun Yat-sen University, Kaohsiung 804, Taiwan
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Aerosol
Science Research Center, National Sun Yat-sen
University, Kaohsiung 804, Taiwan
| |
Collapse
|
2
|
Qin D, Wang R, Ji J, Wang D, Lu Y, Cao S, Chen Y, Wang L, Chen X, Zhang L. Hepatocyte-specific Sox9 knockout ameliorates acute liver injury by suppressing SHP signaling and improving mitochondrial function. Cell Biosci 2023; 13:159. [PMID: 37649095 PMCID: PMC10468867 DOI: 10.1186/s13578-023-01104-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND AND AIMS Sex determining region Y related high-mobility group box protein 9 (Sox9) is expressed in a subset of hepatocytes, and it is important for chronic liver injury. However, the roles of Sox9+ hepatocytes in response to the acute liver injury and repair are poorly understood. METHODS In this study, we developed the mature hepatocyte-specific Sox9 knockout mouse line and applied three acute liver injury models including PHx, CCl4 and hepatic ischemia reperfusion (IR). Huh-7 cells were subjected to treatment with hydrogen peroxide (H2O2) in order to induce cellular damage in an in vitro setting. RESULTS We found the positive effect of Sox9 deletion on acute liver injury repair. Small heterodimer partner (SHP) expression was highly suppressed in hepatocyte-specific Sox9 deletion mouse liver, accompanied by less cell death and more cell proliferation. However, in mice with hepatocyte-specific Sox9 deletion and SHP overexpression, we observed an opposite phenotype. In addition, the overexpression of SOX9 in H2O2-treated Huh-7 cells resulted in an increase in cytoplasmic SHP accumulation, accompanied by a reduction of SHP in the nucleus. This led to impaired mitochondrial function and subsequent cell death. Notably, both the mitochondrial dysfunction and cell damage were reversed when SHP siRNA was employed, indicating the crucial role of SHP in mediating these effects. Furthermore, we found that Sox9, as a vital transcription factor, directly bound to SHP promoter to regulate SHP transcription. CONCLUSIONS Overall, our findings unravel the mechanism by which hepatocyte-specific Sox9 knockout ameliorates acute liver injury via suppressing SHP signaling and improving mitochondrial function. This study may provide a new treatment strategy for acute liver injury in future.
Collapse
Affiliation(s)
- Dan Qin
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Rui Wang
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Jinwei Ji
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Duo Wang
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yuanyuan Lu
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Shiyao Cao
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yaqing Chen
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Liqiang Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28th Fuxing Road, Beijing, 100853, China
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, 28th Fuxing Road, Beijing, 100853, China
| | - Lisheng Zhang
- College of Veterinary Medicine/College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| |
Collapse
|
3
|
Wu X, Ni Z, Song T, Lv W, Chen Y, Huang D, Xie Y, Huang W, Niu Y. C-Terminal Truncated HBx Facilitates Oncogenesis by Modulating Cell Cycle and Glucose Metabolism in FXR-Deficient Hepatocellular Carcinoma. Int J Mol Sci 2023; 24:ijms24065174. [PMID: 36982249 PMCID: PMC10048952 DOI: 10.3390/ijms24065174] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
Farnesoid X receptor (FXR) is a nuclear receptor known to play protective roles in anti-hepatocarcinogenesis and regulation of the basal metabolism of glucose, lipids, and bile acids. FXR expression is low or absent in HBV-associated hepatocarcinogenesis. Full-length HBx and HBx C-terminal truncation are frequently found in clinical HCC samples and play distinct roles in hepatocarcinogenesis by interacting with FXR or FXR signaling. However, the impact of C-terminal truncated HBx on the progression of hepatocarcinogenesis in the absence of FXR is unclear. In this study, we found that one known FXR binding protein, a C-terminal truncated X protein (HBx C40) enhanced obviously and promoted tumor cell proliferation and migration by altering cell cycle distribution and inducing apoptosis in the absence of FXR. HBx C40 enhanced the growth of FXR-deficient tumors in vivo. In addition, RNA-sequencing analysis showed that HBx C40 overexpression could affect energy metabolism. Overexpressed HSPB8 aggravated the metabolic reprogramming induced by down-regulating glucose metabolism-associated hexokinase 2 genes in HBx C40-induced hepatocarcinogenesis. Overall, our study suggests that C-terminal truncated HBx C40 synergizes with FXR deficiency by altering cell cycle distribution as well as disturbing glucose metabolism to promote HCC development.
Collapse
Affiliation(s)
- Xuejun Wu
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Zhengzhong Ni
- School of Public Health, Shantou University, Shantou 515063, China
| | - Tiantian Song
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Wenya Lv
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Yan Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Danmei Huang
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Yangmin Xie
- Department of Experimental Animal Center, Medical College of Shantou University, Shantou 515041, China
| | - Weiyi Huang
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
| | - Yongdong Niu
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, China
- Correspondence: or ; Tel.: +86-0754-88900432
| |
Collapse
|
4
|
Chiang JYL, Ferrell JM. Discovery of farnesoid X receptor and its role in bile acid metabolism. Mol Cell Endocrinol 2022; 548:111618. [PMID: 35283218 PMCID: PMC9038687 DOI: 10.1016/j.mce.2022.111618] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/07/2022] [Accepted: 01/18/2022] [Indexed: 12/14/2022]
Abstract
In 1995, the nuclear hormone orphan receptor farnesoid X receptor (FXR, NR1H4) was identified as a farnesol receptor expressed mainly in liver, kidney, and adrenal gland of rats. In 1999, bile acids were identified as endogenous FXR ligands. Subsequently, FXR target genes involved in the regulation of hepatic bile acid synthesis, secretion, and intestinal re-absorption were identified. FXR signaling was proposed as a mechanism of feedback regulation of the rate-limiting enzyme for bile acid synthesis, cholesterol 7⍺-hydroxylase (CYP7A1). The primary bile acids synthesized in the liver are transformed to secondary bile acids by the gut microbiota. The gut-to-liver axis plays a critical role in the regulation of bile acid synthesis, composition and circulating bile acid pool size, which in turn regulates glucose, lipid, and energy metabolism. Dysregulation of bile acid metabolism and FXR signaling in the gut-to-liver axis contributes to metabolic diseases including obesity, diabetes, and non-alcoholic fatty liver disease. This review will cover the discovery of FXR as a bile acid sensor in the regulation of bile acid metabolism and as a metabolic regulator of lipid, glucose, and energy homeostasis. It will also provide an update of FXR functions in the gut-to-liver axis and the drug therapies targeting bile acids and FXR for the treatment of liver metabolic diseases.
Collapse
Affiliation(s)
- John Y L Chiang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4029 SR 44, P.O. Box 95, Rootstown, OH, 44272, United States.
| | - Jessica M Ferrell
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, 4029 SR 44, P.O. Box 95, Rootstown, OH, 44272, United States
| |
Collapse
|
5
|
Su W, Wu L, Liang Q, Lin X, Xu X, Yu S, Lin Y, Zhou J, Fu Y, Gao X, Zhang B, Li L, Li D, Yin Y, Song G. Extraction Optimization, Structural Characterization, and Anti-Hepatoma Activity of Acidic Polysaccharides From Scutellaria barbata D. Don. Front Pharmacol 2022; 13:827782. [PMID: 35444545 PMCID: PMC9014130 DOI: 10.3389/fphar.2022.827782] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
The Chinese medicinal herb Scutellaria barbata D. Don has antitumour effects and is used to treat liver cancer in the clinic. S. barbata polysaccharide (SBP), one of the main active components extracted from S. barbata D. Don, exhibits antitumour activity. However, there is still a lack of research on the extraction optimization, structural characterization, and anti-hepatoma activity of acidic polysaccharides from S. barbata D. Don. In this study, the optimal extraction conditions for SBP were determined by response surface methodology (RSM): the material-liquid ratio was 1:25, the extraction time was 2 h, and the extraction temperature was 90°C. Under these conditions, the average extraction efficiency was 3.85 ± 0.13%. Two water-soluble polysaccharides were isolated from S. barbata D. Don, namely, SBP-1A and SBP-2A, these homogeneous acidic polysaccharide components with average molecular weights of 1.15 × 105 Da and 1.4 × 105 Da, respectively, were obtained at high purity. The results showed that the monosaccharide constituents of the two components were fucose, galactosamine hydrochloride, rhamnose, arabinose, glucosamine hydrochloride, galactose, glucose, xylose, and mannose; the molar ratio of these constituents in SBP-1A was 0.6:0.3:0.6:30.6:3.3:38.4:16.1:8:1.4, and that in SBP-2A was 0.6:0.5:0.8:36.3:4.4:42.7:9.2:3.6:0.7. In addition, SBP-1A and SBP-2A contained uronic acid and β-glucan, and the residue on the polysaccharide was mainly pyranose. The in vitro results showed that the anti-hepatoma activity of SBP-2A was better than that of SBP-1A and SBP. In addition, SBP-2A significantly enhanced HepG2 cell death, as cell viability was decreased, and SBP-2A induced HepG2 cell apoptosis and blocked the G1 phase. This phenomenon was coupled with the upregulated expression of P53 and Bax/Bcl-2 ratio, as well as the downregulated expression of the cell cycle-regulating protein cyclinD1, CDK4, and Bcl-2 in this study. Further analysis showed that 50 mg/kg SBP-2A inhibited the tumour growth in H22 tumour-bearing mice, with an average inhibition rate of 40.33%. Taken together, SBP-2A, isolated and purified from S. barbata showed good antitumour activity in vivo and in vitro, and SBP-2A may be a candidate drug for further evaluation in cancer prevention. This study provides insight for further research on the molecular mechanism of the anti-hepatoma activity of S. barbata polysaccharide.
Collapse
Affiliation(s)
- Wenwen Su
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| | - Leilei Wu
- Collage of Pharmacology, Mudanjiang Medical University, Mudanjiang, China
| | - Qichao Liang
- Collage of Pharmacology, Mudanjiang Medical University, Mudanjiang, China
| | - Xiaoyue Lin
- The First Clinical College of Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaoyi Xu
- The First Clinical College of Medicine, Mudanjiang Medical University, Mudanjiang, China
| | - Shikai Yu
- Collage of Basic Medicine, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yitong Lin
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| | - Jiadong Zhou
- Collage of Basic Medicine, Mudanjiang Medical University, Mudanjiang, China
| | - Yang Fu
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| | - Xiaoyan Gao
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| | - Bo Zhang
- Department of Oncology, Mudanjiang Cancer Hospital, Mudanjiang, China
| | - Li Li
- Collage of Basic Medicine, Mudanjiang Medical University, Mudanjiang, China
| | - Dan Li
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| | - Yongkui Yin
- College of Life Sciences, Mudanjiang Medical University, Mudanjiang, China
| | - Gaochen Song
- Department of Biochemistry and Molecular Biology, Mudanjiang Medical University, Mudanjiang, China
| |
Collapse
|
6
|
Režen T, Rozman D, Kovács T, Kovács P, Sipos A, Bai P, Mikó E. The role of bile acids in carcinogenesis. Cell Mol Life Sci 2022; 79:243. [PMID: 35429253 PMCID: PMC9013344 DOI: 10.1007/s00018-022-04278-2] [Citation(s) in RCA: 146] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/03/2022] [Accepted: 03/28/2022] [Indexed: 12/17/2022]
Abstract
AbstractBile acids are soluble derivatives of cholesterol produced in the liver that subsequently undergo bacterial transformation yielding a diverse array of metabolites. The bulk of bile acid synthesis takes place in the liver yielding primary bile acids; however, other tissues have also the capacity to generate bile acids (e.g. ovaries). Hepatic bile acids are then transported to bile and are subsequently released into the intestines. In the large intestine, a fraction of primary bile acids is converted to secondary bile acids by gut bacteria. The majority of the intestinal bile acids undergo reuptake and return to the liver. A small fraction of secondary and primary bile acids remains in the circulation and exert receptor-mediated and pure chemical effects (e.g. acidic bile in oesophageal cancer) on cancer cells. In this review, we assess how changes to bile acid biosynthesis, bile acid flux and local bile acid concentration modulate the behavior of different cancers. Here, we present in-depth the involvement of bile acids in oesophageal, gastric, hepatocellular, pancreatic, colorectal, breast, prostate, ovarian cancer. Previous studies often used bile acids in supraphysiological concentration, sometimes in concentrations 1000 times higher than the highest reported tissue or serum concentrations likely eliciting unspecific effects, a practice that we advocate against in this review. Furthermore, we show that, although bile acids were classically considered as pro-carcinogenic agents (e.g. oesophageal cancer), the dogma that switch, as lower concentrations of bile acids that correspond to their serum or tissue reference concentration possess anticancer activity in a subset of cancers. Differences in the response of cancers to bile acids lie in the differential expression of bile acid receptors between cancers (e.g. FXR vs. TGR5). UDCA, a bile acid that is sold as a generic medication against cholestasis or biliary surge, and its conjugates were identified with almost purely anticancer features suggesting a possibility for drug repurposing. Taken together, bile acids were considered as tumor inducers or tumor promoter molecules; nevertheless, in certain cancers, like breast cancer, bile acids in their reference concentrations may act as tumor suppressors suggesting a Janus-faced nature of bile acids in carcinogenesis.
Collapse
Affiliation(s)
- Tadeja Režen
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Damjana Rozman
- Centre for Functional Genomics and Bio-Chips, Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tünde Kovács
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary
| | - Patrik Kovács
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
| | - Adrienn Sipos
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
| | - Péter Bai
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, 4032, Hungary
| | - Edit Mikó
- Department of Medical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, 4032, Hungary.
- MTA-DE Lendület Laboratory of Cellular Metabolism, Debrecen, 4032, Hungary.
| |
Collapse
|
7
|
Peng L, Qiu J, Liu L, Li X, Liu X, Zhang Y. Preparation of PEG/ZIF-8@HF drug delivery system for melanoma treatment via oral administration. Drug Deliv 2022; 29:1075-1085. [PMID: 35373691 PMCID: PMC8986218 DOI: 10.1080/10717544.2022.2058649] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Melanoma is one of the highly malignant tumors whose incidence and fatality rates have been increased year by year. However, in addition to early surgical resection, there still lacks specific targeted drugs and treatment strategies. In this study, it was discovered that hinokiflavone (HF) encapsulated in zeolitic imidazolate framework-8 (ZIF-8) exhibited a superior anti-melanoma effect in vitro and in vivo. HF was encapsulated in ZIF-8 through a one-step synthesis method, and polyethylene glycol (PEG-2000) was used to optimize the size and dispersion of the drug-loaded complex (PEG/ZIF-8@HF). The results show that the prepared PEG/ZIF-8@HF has a high encapsulation efficiency (92.12%) and can achieve selective drug release in an acidic microenvironment. The results of in vitro anti-melanoma experiments indicate that PEG/ZIF-8@HF shows up-regulation of reactive oxygen species (ROS) levels and can restrain the migration and invasion of B16F10 cells. Moreover, in vivo animal experiments further confirm that PEG/ZIF-8@HF shows anti-tumor effect by up-regulating the pro-apoptotic proteins caspase-3 and caspase-8, and down-regulating the migration-promoting invasion protein MMP-9. This study developed a safe and effective oral administration of HF based on the high-efficiency delivery ZIF-8 system, which provides an effective treatment strategy for melanoma.
Collapse
Affiliation(s)
- Luxi Peng
- The Third Affiliated Hospital of School of Medicine, Shihezi University, Shihezi, China.,The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Jiajun Qiu
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Lidan Liu
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoyu Li
- Department of Pharmacy, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xuanyong Liu
- The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China
| | - Yongjun Zhang
- The Third Affiliated Hospital of School of Medicine, Shihezi University, Shihezi, China
| |
Collapse
|
8
|
Kim S, Joo M, Yeo MK, Cho MJ, Kim JS, Jo EK, Kim JM. Small heterodimer partner as a predictor of neoadjuvant radiochemotherapy response and survival in patients with rectal cancer: A preliminary study. Oncol Lett 2021; 22:708. [PMID: 34457063 PMCID: PMC8358587 DOI: 10.3892/ol.2021.12969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/16/2021] [Indexed: 11/06/2022] Open
Abstract
Small heterodimer partner (SHP) plays an essential role in the regulation of innate immune and inflammatory responses. The aim of the present study was to identify whether SHP levels are associated with cancer immunology and treatment outcomes in rectal cancer. SHP expression was analyzed via gene set enrichment analysis and the OncoLnc database. In addition, immunohistochemistry and reverse transcription-quantitative PCR analyses were performed on the tissues of patients with locally advanced rectal cancer, and the associations of SHP expression with the clinicopathological and hematological features or treatment response to preoperative radiochemotherapy (pRCT) were analyzed retrospectively. Furthermore, the present study investigated whether SHP expression correlated with immune infiltration levels and immune checkpoint molecules in rectal cancer. The results revealed that low SHP mRNA expression was significantly associated with an inflammatory response and poor prognosis. The nuclear expression of SHP was associated with clinical N stage, neutrophil count, lymphocyte count, neutrophil-lymphocyte ratio and complete pathologic response following pRCT. The low nuclear expression of SHP was associated with poor overall and distant metastasis-free survival (DMFS). In multivariate analysis, the low nuclear expression of SHP was identified as a significant independent prognostic factor for DMFS and a marginally significant prognostic factor for overall survival in rectal cancer. Furthermore, patients with low SHP expression exhibited higher neutrophil and CD8+ T cell infiltration levels and higher PD-L1 expression in rectal adenocarcinoma. These results indicate that SHP may act as an anti-inflammatory mediator via the regulation of systemic and local immune responses in rectal cancer. Moreover, SHP might be useful a potential marker or therapeutic target in rectal cancer.
Collapse
Affiliation(s)
- Sup Kim
- Department of Radiation Oncology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Mina Joo
- Department of Pathology and Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Min-Kyung Yeo
- Department of Pathology and Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Moon-June Cho
- Department of Radiation Oncology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Jun-Sang Kim
- Department of Radiation Oncology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Eun-Kyeong Jo
- Department of Microbiology and Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea.,Infection Control Convergence Research Center, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Jin-Man Kim
- Department of Pathology and Medical Science, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea.,Infection Control Convergence Research Center, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| |
Collapse
|
9
|
Wu J, Nagy LE, Wang L. The long and the small collide: LncRNAs and small heterodimer partner (SHP) in liver disease. Mol Cell Endocrinol 2021; 528:111262. [PMID: 33781837 PMCID: PMC8087644 DOI: 10.1016/j.mce.2021.111262] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 02/08/2023]
Abstract
Long non-coding RNAs (lncRNAs) are a large and diverse class of RNA molecules that are transcribed but not translated into proteins, with a length of more than 200 nucleotides. LncRNAs are involved in gene expression and regulation. The abnormal expression of lncRNAs is associated with disease pathogenesis. Small heterodimer partner (SHP, NR0B2) is a unique orphan nuclear receptor that plays a pivotal role in many biological processes by acting as a transcriptional repressor. In this review, we present the critical roles of SHP and summarize recent findings demonstrating the regulation between lncRNAs and SHP in liver disease.
Collapse
Affiliation(s)
- Jianguo Wu
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA.
| | - Laura E Nagy
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Gastroenterology and Hepatology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - Li Wang
- Independent Researcher, Tucson, AZ, USA
| |
Collapse
|
10
|
Guo J, Zheng J, Mu M, Chen Z, Xu Z, Zhao C, Yang K, Qin X, Sun X, Yu J. GW4064 enhances the chemosensitivity of colorectal cancer to oxaliplatin by inducing pyroptosis. Biochem Biophys Res Commun 2021; 548:60-66. [PMID: 33631675 DOI: 10.1016/j.bbrc.2021.02.043] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022]
Abstract
Repeated and long-term oxaliplatin therapy leads to drug resistance and severe adverse events, which limit its clinical use. These difficulties highlight the importance of identifying potent and specific drug combinations to enhance the antitumor effects of oxaliplatin. The farnesoid X receptor (FXR) deficiency in colorectal cancer (CRC) suggests that restoring FXR function might be a promising strategy for CRC treatment. A drug combination study showed that the GW4064 acted synergistically with oxaliplatin in colon cancer cells. The combination of oxaliplatin plus GW4064 inhibited cell growth and colony formation, induced apoptosis and pyroptosis in vitro, and slowed tumor growth in vivo. Mechanistically, GW4064 enhanced the chemosensitivity of cells to oxaliplatin by inducing BAX/caspase-3/GSDME-mediated pyroptosis. Furthermore, the combination of oxaliplatin and GW4064 synergistically inhibited STAT3 signaling by restoring SHP expression. Our study revealed that GW4064 could enhance the antitumor effects of oxaliplatin against CRC, which provides a novel therapeutic strategy based on a combinational approach for CRC treatment.
Collapse
Affiliation(s)
- Jing Guo
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Jianbao Zheng
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Mingchao Mu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Zilu Chen
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Zhengshui Xu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Chenye Zhao
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Kui Yang
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China
| | - Xiao Qin
- Department of Emergency, Ankang People's Hospital, 725000, Ankang, Shaanxi, China
| | - Xuejun Sun
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| | - Junhui Yu
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 710061, Xi'an, Shaanxi, China.
| |
Collapse
|
11
|
Li S, Xu Z, Guo J, Zheng J, Sun X, Yu J. Farnesoid X receptor activation induces antitumour activity in colorectal cancer by suppressing JAK2/STAT3 signalling via transactivation of SOCS3 gene. J Cell Mol Med 2020; 24:14549-14560. [PMID: 33164339 PMCID: PMC7754034 DOI: 10.1111/jcmm.16083] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 10/20/2020] [Accepted: 10/25/2020] [Indexed: 12/14/2022] Open
Abstract
Farnesoid X receptor (FXR, encoded by NR1H4), a bile acid‐activated nuclear receptor, is widely implicated in human tumorigenesis. The FXR agonist obeticholic acid (OCA) has preliminarily displayed tumour suppressor potential. However, the anticancer effects of this agent on colorectal cancer (CRC) remain unclear. In this study, the treatment of colon cancer cells with OCA inhibited cell proliferation and invasion in vitro, retarded tumour growth in vivo and prevented the G0/G1 to S phase transition. Moreover, the expression of active caspase‐3, p21 and E‐cadherin was up‐regulated and the expression of cyclin D1, c‐Myc, vimentin, N‐cadherin and MMP9 was down‐regulated in OCA‐treated colon cancer cells. Mechanistic studies indicated that OCA treatment suppressed the activity of JAK2/STAT3 pathway by up‐regulating SOCS3 expression. Colivelin, an agonist of JAK2/STAT3 pathway, antagonized the tumour‐suppressive effect of OCA on colon cancer cells. Dual‐luciferase reporter and quantitative chromatin immunoprecipitation (qChIP) assays further confirmed that OCA promoted SOCS3 transcription by enhancing the binding of FXR to the FXRE/IR9 of the SOCS3 promoter. In conclusion, our study demonstrates that targeting FXR and improving its function might be a promising strategy for CRC treatment.
Collapse
Affiliation(s)
- Shan Li
- Department of Reproductive Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhengshui Xu
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jing Guo
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jianbao Zheng
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xuejun Sun
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Junhui Yu
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| |
Collapse
|
12
|
Synergistic tumor inhibition of colon cancer cells by nitazoxanide and obeticholic acid, a farnesoid X receptor ligand. Cancer Gene Ther 2020; 28:590-601. [PMID: 33046820 PMCID: PMC8203497 DOI: 10.1038/s41417-020-00239-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/24/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023]
Abstract
The tumor-suppressive role of Farnesoid X receptor (FXR) in colorectal tumorigenesis supports restoring FXR expression as a novel therapeutic strategy. However, the complicated signaling network and tumor heterogeneity hinder the effectiveness of FXR agonists in the clinical setting. These difficulties highlight the importance of identifying drug combinations with potency and specificity to enhance the antitumor effects of FXR agonists. In this study, we found that the β-catenin level affected the antitumor effects of the FXR agonist OCA on colon cancer cells. Mechanistic studies identified a novel FXR/β-catenin complex in colon cancer cells. Furthermore, the depletion of β-catenin expedited FXR nuclear localization and enhanced its occupancy of the SHP promoter and thereby sensitized colon cancer cells to OCA. Furthermore, we utilized a drug combination study and identified that the antiparasitic drug nitazoxanide (NTZ) abrogated β-catenin expression and acted synergistically with OCA in colon cancer cells. The combination of OCA plus NTZ exerts synergistic tumor inhibition in CRC both in vitro and in vivo by cooperatively upregulating SHP expression. In conclusion, our study offers useful evidence for the clinical use of FXR agonists combined with β-catenin inhibitors in combating CRC.
Collapse
|
13
|
Kim JH, Yoon JE, Nikapitiya C, Kim TH, Uddin MB, Lee HC, Kim YH, Hwang JH, Chathuranga K, Chathuranga WAG, Choi HS, Kim CJ, Jung JU, Lee CH, Lee JS. Small Heterodimer Partner Controls the Virus-Mediated Antiviral Immune Response by Targeting CREB-Binding Protein in the Nucleus. Cell Rep 2020; 27:2105-2118.e5. [PMID: 31091449 DOI: 10.1016/j.celrep.2019.04.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 02/01/2019] [Accepted: 04/15/2019] [Indexed: 01/16/2023] Open
Abstract
Small heterodimer partner (SHP) is an orphan nuclear receptor that acts as a transcriptional co-repressor by interacting with nuclear receptors and transcription factors. Although SHP plays a negative regulatory function in various signaling pathways, its role in virus infection has not been studied. Here, we report that SHP is a potent negative regulator of the virus-mediated type I IFN signaling that maintains homeostasis within the antiviral innate immune system. Upon virus infection, SHP interacts specifically with CREB-binding protein (CBP) in the nucleus, thereby obstructing CBP/β-catenin interaction competitively. Consequently, SHP-deficient cells enhance antiviral responses, including transcription of the type I IFN gene, upon virus infection. Furthermore, SHP-deficient mice show higher levels of IFN production and are more resistant to influenza A virus infection. Our results suggest that SHP is a nuclear regulator that blocks transcription of the type I IFN gene to inhibit excessive innate immune responses.
Collapse
Affiliation(s)
- Jae-Hoon Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Ji-Eun Yoon
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Chamilani Nikapitiya
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Tae-Hwan Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Md Bashir Uddin
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Faculty of Veterinary & Animal Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh
| | - Hyun-Cheol Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Yong-Hoon Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Jung Hwan Hwang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Kiramage Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - W A Gayan Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Hueng-Sik Choi
- National Creative Research Initiatives Center for Nuclear Receptor Signals and Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Chul-Joong Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Jae U Jung
- Department of Molecular Microbiology and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea.
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
| |
Collapse
|
14
|
Ge ZW, Zhu XL, Wang BC, Hu JL, Sun JJ, Wang S, Chen XJ, Meng SP, Liu L, Cheng ZY. MicroRNA-26b relieves inflammatory response and myocardial remodeling of mice with myocardial infarction by suppression of MAPK pathway through binding to PTGS2. Int J Cardiol 2019; 280:152-159. [PMID: 30679074 DOI: 10.1016/j.ijcard.2018.12.077] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/19/2018] [Accepted: 12/27/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Myocardial infarction (MI) is a common cardiovascular disease caused by myocardial ischemia. Also, microRNA (miRNA) participates in the pathophysiology of many cardiovascular diseases, which can affect stem cell transplantation in the treatment of MI. In this study, our aim is to explore effect of miR-26b on inflammatory response and myocardial remodeling through the MAPK pathway by targeting PTGS2 in mice with MI. METHODS Microarray data analysis was conducted to screen MI-related differentially expressed gens (DEGs). Relationship between miR-26b and PTGS2 was testified. Cardiac function, inflammatory reaction, infarct size, and myocardial fibrosis were observed. The miR-26b expression and mRNA and protein levels of, PTGS2, ERK, JNK and p38 and Bcl-2/Bax were examined. The effect of miR-26b on cell apoptosis was also analyzed. RESULTS MiR-26b was predicted to target PTGS2 further to mediate the MAPK pathway, thus affecting MI. MiR-26b negatively targeted PTGS2. MI mice showed decreased cardiac function, as well as increased inflammatory reaction, myocardial injury, area of fibrosis and myocardial cell apoptosis. After injection of miR-26b agomir or NS-398 (PTGS2 inhibitor), inflammatory response of MI mice was attenuated and myocardial remodeling induced by MI was alleviated. CONCLUSION These findings indicate that miR-26b inhibits PTGS2 to activate the MAPK pathway, so as to reduce inflammatory response and improve myocardial remodeling in mice with MI.
Collapse
Affiliation(s)
- Zhen-Wei Ge
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Xi-Liang Zhu
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Bao-Cai Wang
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Jun-Long Hu
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Jun-Jie Sun
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Sheng Wang
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Xian-Jie Chen
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Shu-Ping Meng
- ICU of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Lin Liu
- Department of Cardiovascular Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Zhao-Yun Cheng
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China.
| |
Collapse
|
15
|
Wu J, Zhao Y, Park YK, Lee JY, Gao L, Zhao J, Wang L. Loss of PDK4 switches the hepatic NF-κB/TNF pathway from pro-survival to pro-apoptosis. Hepatology 2018; 68:1111-1124. [PMID: 29603325 PMCID: PMC6165716 DOI: 10.1002/hep.29902] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/10/2018] [Accepted: 03/23/2018] [Indexed: 12/11/2022]
Abstract
It has been established that nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) members promote survival by upregulating antiapoptotic genes and that genetic and pharmacological inhibition of NF-κB is required for tumor necrosis factor (TNF)-induced hepatocyte apoptosis. In this study, we demonstrate that this pro-survival pathway is switched to pro-apoptosis under pyruvate dehydrogenase kinase 4 (PDK4)-deficient conditions. PDK4-deficiency triggered hepatic apoptosis concomitantly with increased numbers of aberrant mitochondria, reactive oxygen species (ROS) production, sustained c-Jun N-terminal Kinase (JNK) activation, and reduction of glutathione (GSH). Interestingly, PDK4 retained p65 in cytoplasm via a direct protein-protein interaction. Disruption of PDK4-p65 association promoted p65 nuclear translocation. This, in turn, facilitated p65 binding to the TNF promoter to activate TNF-TNFR1 apoptotic pathway. Pdk4-/- livers were sensitized to Jo2 and D-(+)-Galactosamine /Lipopolysaccharide (GalN/LPS)-mediated apoptotic injury which was prevented by the inhibition of p65 or TNFR1. The pro-survival activity of TNF was shifted, which was switched to a pro-apoptotic activity in Pdk4-/- hepatocytes as a result of impaired activation of pro-survival NF-κB targets. Conclusion: PDK4 is indispensable to dictate the fate of TNF/NF-κB-mediated hepatocyte apoptosis. (Hepatology 2018).
Collapse
Affiliation(s)
- Jianguo Wu
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269,Corresponding author: Jianguo Wu (), 75 North Eagleville Rd., U3156, Storrs, CT 06269. Tel: 860-486-0857; Fax: 860-486-3303
| | - Yulan Zhao
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Young-Ki Park
- Department of Nutritional Sciences, Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Ji-Young Lee
- Department of Nutritional Sciences, Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Ling Gao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, 250021, China,Institute of Endocrinology and metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, 250021, China
| | - Jiajun Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China,Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, 250021, China,Institute of Endocrinology and metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, 250021, China
| | - Li Wang
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520
| |
Collapse
|
16
|
Thakur PC, Miller-Ocuin JL, Nguyen K, Matsuda R, Singhi AD, Zeh HJ, Bahary N. Inhibition of endoplasmic-reticulum-stress-mediated autophagy enhances the effectiveness of chemotherapeutics on pancreatic cancer. J Transl Med 2018; 16:190. [PMID: 29986726 PMCID: PMC6038181 DOI: 10.1186/s12967-018-1562-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/26/2018] [Indexed: 12/13/2022] Open
Abstract
Background Endoplasmic reticulum (ER) stress and its consequent unfolded protein response (UPR) are believed to be associated with progression, survival and chemoresistance of a variety of tumor cells through multiple cellular processes, including autophagy. Therefore, the ER stress-autophagy pathway presents a potential molecular target for therapeutic intervention. The objective of this study was to evaluate the therapeutic efficacy of ER stress and autophagy modulators in the context of pancreatic ductal adenocarcinoma (PDAC). Methods We first targeted IRE1α, an important regulator of the UPR, through STF-083010 treatment in PDAC cell lines in vitro. Chloroquine was then used to target autophagy and an optimal combination treatment was developed using chloroquine, sunitinib and gemcitabine. Apoptosis was analyzed using TUNEL assay, autophagy was estimated using lysotracker staining and electron microscopy, and UPR was analyzed using anti-GRP78 immunostaining and XBP1 splicing. Transplantation of PDAC derived KPCP1 and Panc02 cells in mouse pancreas were performed to study treatment efficacy in vivo. Results Suppression of the IRE1α by STF-083010 alone resulted in increased lysosomes and reduced viability of PDAC cells. Chloroquine treatment alone inhibited downstream autophagy but was insufficient in reducing PDAC cell growth. However, combining STF-083010 and chloroquine had additive anti-tumor efficacy when used with gemcitabine. Sunitinib alone caused abnormal maturation of the autolysosomes with increased intracellular multivesicular bodies and increased apoptosis evident in PDAC cells. Sunitinib showed a synergistic effect with chloroquine in reducing in vitro PDAC cell viability and significantly increased the efficacy of gemcitabine in human and murine PDAC cell lines. The anti-proliferative effect of gemcitabine was significantly increased when used in combination with sunitinib and/or chloroquine in both in vitro and in vivo PDAC models. The addition of sunitinib and/or chloroquine to gemcitabine, resulted in a significantly increased survival of the animals without noticeably increased toxicity. Sunitinib, gemcitabine and chloroquine treated mice showed a significant reduction of GRP78 expression, reduced cell proliferation and increased apoptosis in pancreas, compatible with a tumor response. Conclusions Sunitinib combined with chloroquine reduces tumor growth through suppression of autophagy and increased apoptosis. Co-administration of modulators of ER stress-mediated autophagy with chemotherapy presents a novel therapeutic approach in PDAC. Electronic supplementary material The online version of this article (10.1186/s12967-018-1562-z) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Prakash C Thakur
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh Cancer Institute, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | | | - Khanh Nguyen
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh Cancer Institute, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,Smilow Cancer Hospital, Yale School of Medicine, New Haven, CT, USA
| | - Rina Matsuda
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh Cancer Institute, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.,University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Aatur D Singhi
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Herbert J Zeh
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Nathan Bahary
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh Cancer Institute, UPMC Hillman Cancer Center, Pittsburgh, PA, USA.
| |
Collapse
|
17
|
Wu PL, Zhou Y, Zeng C, Li X, Dong ZT, Zhou YF, Bulun SE, Xue Q. Transcription factor 21 regulates expression of ERβ and SF-1 via upstream stimulatory factor-2 in endometriotic tissues. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:706-717. [PMID: 30018006 DOI: 10.1016/j.bbagrm.2018.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/07/2018] [Accepted: 06/21/2018] [Indexed: 11/19/2022]
Abstract
Steroidogenic factor-1 (SF-1, encoded by NR5A1) and estrogen receptor beta (ERβ, encoded by ESR2), which are highly expressed in endometriotic stromal cells (ESCs), contribute to the pathogenesis of endometriosis, but the regulation mechanism remains largely unknown. Transcription factor 21 (TCF21) belongs to the helix-loop-helix (bHLH) family characterized by regulating gene expression via binding to E-box element. Here, we attempted to determine the molecular mechanism of TCF21 on SF-1 and ERβ expression in endometriosis. We found that TCF21 expression in ESCs was higher than that in endometrial stromal cells (EMs), and positively correlated with SF-1 and ERβ expression in ESCs. Since the importance of E-box element for NR5A1 promoter activity has been previously reported, we performed site-mutation and luciferase assay, revealing that the E-box sequence in the ESR2 promoter is also a critical element modulating ERβ expression. Upstream stimulatory factor 2 (USF2) is another bHLH factor implicated in transcriptional regulation. Further analyses elucidated that it is not TCF21, but USF2 exhibited higher binding affinities in ESCs to NR5A1 and ESR2 promoters than in EMs. Additionally, TCF21 knockdown significantly decreased the binding activities of USF2 to NR5A1 and ESR2 promoters via disruption of the TCF21-USF2 complex. Meanwhile, manipulating TCF21 expression significantly affected MMP9 and cyclinD1 expression, as wells as proliferation and invasion of ESCs. Moreover, TCF21 depletion in endometriotic xenografts reduced SF-1 and ERβ expression, abrogating ectopic lesion growth in mice. Cumulatively, a critical role of TCF21 in the pathogenesis of endometriosis is demonstrated, suggesting a potential druggable target for future therapy.
Collapse
Affiliation(s)
- Pei-Li Wu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Yan Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Cheng Zeng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Xin Li
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Zhao-Tong Dong
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Ying-Fang Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Serdar E Bulun
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Qing Xue
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
| |
Collapse
|
18
|
Liu X, Guo GL, Kong B, Hilburn DB, Hubchak SC, Park S, LeCuyer B, Hsieh A, Wang L, Fang D, Green RM. Farnesoid X receptor signaling activates the hepatic X-box binding protein 1 pathway in vitro and in mice. Hepatology 2018; 68:304-316. [PMID: 29377207 PMCID: PMC6033648 DOI: 10.1002/hep.29815] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 12/20/2017] [Accepted: 01/16/2018] [Indexed: 12/19/2022]
Abstract
UNLABELLED Bile acids are endogenous ligands of the nuclear receptor, farnesoid X receptor (FXR), and pharmacological FXR modulators are under development for the treatment of several liver disorders. The inositol-requiring enzyme 1α/X-box binding protein 1 (IRE1α/XBP1) pathway of the unfolded protein response (UPR) is a protective cellular signaling pathway activated in response to endoplasmic reticulum (ER) stress. We investigated the role of FXR signaling in activation of the hepatic XBP1 pathway. Mice were treated with deoxycholic acid (DCA), cholestyramine, GW4064, or underwent bile duct ligation (BDL), and hepatic UPR activation was measured. Huh7-Ntcp and HepG2 cells were treated with FXR agonists, inhibitor, small interfering RNA (siRNA), or small heterodimer partner (SHP) siRNA to determine the mechanisms of IRE1α/XBP1 pathway activation. DCA feeding and BDL increased and cholestyramine decreased expression of hepatic XBP1 spliced (XBP1s). XBP1 pathway activation increased in Huh7-Ntcp and HepG2 cells treated with bile acids, 6α-ethyl-chenodeoxycholic acid (6-ECDCA) or GW4064. This effect decreased with FXR knockdown and treatment with the FXR inhibitor guggulsterone. FXR agonists increased XBP1 splicing and phosphorylated IRE1α (p-IRE1α) expression. Overexpression of SHP similarly increased XBP1 splicing, XBP1s, and p-IRE1α protein expression. SHP knockdown attenuated FXR agonist-induced XBP1s and p-IRE1α protein expression. Co-immunoprecipitation (Co-IP) assays demonstrate a physical interaction between overexpressed green fluorescent protein (GFP)-SHP and FLAG-IRE1α in HEK293T cells. Mice treated with GW4064 had increased, and FXR and SHP null mice had decreased, basal Xbp1s gene expression. CONCLUSION FXR signaling activates the IRE1α/XBP1 pathway in vivo and in vitro. FXR pathway activation increases XBP1 splicing and enhances p-IRE1α expression. These effects are mediated, at least in part, by SHP. IRE1α/XBP1 pathway activation by bile acids and pharmacological FXR agonists may be protective during liver injury and may have therapeutic implications for liver diseases. (Hepatology 2018;68:304-316).
Collapse
Affiliation(s)
- Xiaoying Liu
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Grace L. Guo
- Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, NJ
| | - Bo Kong
- Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, NJ
| | - David B. Hilburn
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Susan C. Hubchak
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Seong Park
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Brian LeCuyer
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Antony Hsieh
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| | - Li Wang
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT,Veterans Affairs Connecticut Healthcare System, West Haven, CT
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Richard M. Green
- Division of Gastroenterology and Hepatology, Department of Medicine, Chicago, IL
| |
Collapse
|
19
|
Tran M, Liu Y, Huang W, Wang L. Nuclear receptors and liver disease: Summary of the 2017 basic research symposium. Hepatol Commun 2018; 2:765-777. [PMID: 30129636 PMCID: PMC6049066 DOI: 10.1002/hep4.1203] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/03/2018] [Accepted: 05/10/2018] [Indexed: 12/11/2022] Open
Abstract
The nuclear receptor superfamily contains important transcriptional regulators that play pleiotropic roles in cell differentiation, development, proliferation, and metabolic processes to govern liver physiology and pathology. Many nuclear receptors are ligand-activated transcription factors that regulate the expression of their target genes by modulating transcriptional activities and epigenetic changes. Additionally, the protein complex associated with nuclear receptors consists of a multitude of coregulators, corepressors, and noncoding RNAs. Therefore, acquiring new information on nuclear receptors may provide invaluable insight into novel therapies and shed light on new interventions to reduce the burden and incidence of liver diseases. (Hepatology Communications 2018;2:765-777).
Collapse
Affiliation(s)
- Melanie Tran
- Department of Physiology and Neurobiology and Institute for Systems Genomics, University of Connecticut, Storrs, CT
| | - Yanjun Liu
- Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute, Beckman Research Institute City of Hope National Medical Center Duarte CA
| | - Wendong Huang
- Department of Diabetes Complications and Metabolism, Diabetes and Metabolism Research Institute, Beckman Research Institute City of Hope National Medical Center Duarte CA
| | - Li Wang
- Department of Physiology and Neurobiology and Institute for Systems Genomics, University of Connecticut, Storrs, CT.,Veterans Affairs Connecticut Healthcare System West Haven CT.,Department of Internal Medicine, Section of Digestive Diseases Yale University New Haven CT
| |
Collapse
|
20
|
Choiniere J, Lin MJ, Wang L, Wu J. Deficiency of pyruvate dehydrogenase kinase 4 sensitizes mouse liver to diethylnitrosamine and arsenic toxicity through inducing apoptosis. LIVER RESEARCH 2018; 2:100-107. [PMID: 31815032 PMCID: PMC6896988 DOI: 10.1016/j.livres.2018.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Pyruvate dehydrogenase kinase 4 (PDK4) is a metabolism switch that regulates glucose oxidation and the tricarboxylic acid cycle (TCA cycle) in the mitochondria. Liver detoxifies xenobiotics and is constantly challenged by various injuries. This study aims at understanding how the loss of the metabolism regulator PDK4 contributes to liver injuries. METHODS Wild-type (WT) and Pdk4 knockout (Pdk4 -/-) mice of different ages were examined for spontaneous hepatic apoptosis. Juvenile or adult mice of two genotypes were insulted by diethylnitrosamine (DEN), arsenic, galactosamine (GalN)/lipopolysaccharide (LPS), anti-CD95 (Jo2) antibody or carbon tetrachloride (CCl4). Liver injury was monitored by blood biochemistry test. Apoptosis was determined by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, poly (ADP-ribose) polymerase (PARP) cleavage, and caspase activity assay. Inflammatory response was determined by nuclear factor (NF)-κB activation and the activation of NF-κB target genes. Primary hepatocytes were isolated and cell viability was evaluated by MTS assay. RESULTS We showed that systematic Pdk4 -/- in mice resulted in age-dependent spontaneous hepatic apoptosis. PDK4-deficiency increased the toxicity of DEN in juvenile mice, which correlated with a lethal consequence and massive hepatic apoptosis. Similarly, chronic arsenic administration induced more severe hepatic apoptosis in Pdk4 -/- mice compared to WT control mice. An aggravated hepatic NF-κB mediated-inflammatory response was observed in Pdk4 -/- mice livers. In vitro, Pdk4-deficient primary hepatocytes were more vulnerable to DEN and arsenic challenges and displayed higher caspase activity than wild type cells. Notably, hepatic PDK4 mRNA level was remarkably reduced during acute liver failure induced by GalN/LPS or Jo2 antibody. The diminished PDK4 expression was also observed in CCl4-induced acute liver injury. CONCLUSIONS PDK4 may contribute to the protection from apoptotic injury in mouse liver.
Collapse
Affiliation(s)
- Jonathan Choiniere
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| | - Matthew Junda Lin
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| | - Li Wang
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
- Veterans Affairs Connecticut Healthcare System, West Haven, CT, USA
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT, USA
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianguo Wu
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| |
Collapse
|
21
|
Zou A, Magee N, Deng F, Lehn S, Zhong C, Zhang Y. Hepatocyte nuclear receptor SHP suppresses inflammation and fibrosis in a mouse model of nonalcoholic steatohepatitis. J Biol Chem 2018; 293:8656-8671. [PMID: 29666185 DOI: 10.1074/jbc.ra117.001653] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 03/17/2018] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a burgeoning health problem worldwide, ranging from nonalcoholic fatty liver (NAFL, steatosis without hepatocellular injury) to the more aggressive nonalcoholic steatohepatitis (NASH, steatosis with ballooning, inflammation, or fibrosis). Although many studies have greatly contributed to the elucidation of NAFLD pathogenesis, the disease progression from NAFL to NASH remains incompletely understood. Nuclear receptor small heterodimer partner (Nr0b2, SHP) is a transcriptional regulator critical for the regulation of bile acid, glucose, and lipid metabolism. Here, we show that SHP levels are decreased in the livers of patients with NASH and in diet-induced mouse NASH. Exposing primary mouse hepatocytes to palmitic acid and lipopolysaccharide in vitro, we demonstrated that the suppression of Shp expression in hepatocytes is due to c-Jun N-terminal kinase (JNK) activation, which stimulates c-Jun-mediated transcriptional repression of Shp Interestingly, in vivo induction of hepatocyte-specific SHP in steatotic mouse liver ameliorated NASH progression by attenuating liver inflammation and fibrosis, but not steatosis. Moreover, a key mechanism linking the anti-inflammatory role of hepatocyte-specific SHP expression to inflammation involved SHP-induced suppression of NF-κB p65-mediated induction of chemokine (C-C motif) ligand 2 (CCL2), which activates macrophage proinflammatory polarization and migration. In summary, our results indicate that a JNK/SHP/NF-κB/CCL2 regulatory network controls communications between hepatocytes and macrophages and contributes to the disease progression from NAFL to NASH. Our findings may benefit the development of new management or prevention strategies for NASH.
Collapse
Affiliation(s)
- An Zou
- From the Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Nancy Magee
- From the Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Fengyan Deng
- From the Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Sarah Lehn
- From the Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Cuncong Zhong
- the Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, Kansas 66045, and
| | - Yuxia Zhang
- From the Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas 66160, .,the Liver Center, University of Kansas Medical Center, Kansas City, Kansas 66160
| |
Collapse
|
22
|
Conti B, Porcu C, Viscomi C, Minutolo A, Costantini S, Corazzari M, Iannucci G, Barbaro B, Balsano C. Small heterodimer partner 1 directly interacts with NS5A viral protein and has a key role in HCV related liver cell transformation. Oncotarget 2018; 7:84575-84586. [PMID: 27661118 PMCID: PMC5356682 DOI: 10.18632/oncotarget.12144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/20/2016] [Indexed: 12/14/2022] Open
Abstract
HCV life cycle is strictly correlated with the hepatocyte lipid metabolism; moreover, the progression of HCV chronic hepatitis is accelerated by the presence of liver steatosis. Among the steatogenic genes deregulated during the HCV infection one of the most attractive is the Small Heterodimer Protein 1 (SHP1; NR0B2), that is involved in a remarkable number of metabolic functions. HCV NS5A is an essential and integral component of the HCV membranous-web replicon complex (RC) and plays an essential role to transfer the viral genome from the RCs to the surface of the lipid droplets (LDs) that, in turn, play a key function during HCV life cycle. With the help of a HCV infection model, we demonstrate a functional interaction between SHP1 and HCV NS5A protein. SHP1 silencing (siSHP1) reversed the pro-oncogenic effects of HCV infection, inducing a significant decrease in liver lipid accumulation and in NS5A protein expression. Moreover, siSHP1 causes a strong modulation of some genes involved in HCV-related EMT, such as: HNF4, a central regulators of hepatocyte differentiation, E-Cadherin, SNAILs. Our data suggest that SHP1 results not only to be strictly connected to the pathogenesis of HCV-related liver steatosis, but also to its progression towards the liver transformation.
Collapse
Affiliation(s)
- Beatrice Conti
- Laboratory of Molecular Virology and Oncoloy, Francesco Balsano Foundation, ex A. Cesalpino Foundation, Rome, Italy
| | - Cristiana Porcu
- Institute of Biology and Molecular Pathology (IBPM) - CNR (National Research Council), Rome, Italy
| | - Carmela Viscomi
- Laboratory of Molecular Virology and Oncoloy, Francesco Balsano Foundation, ex A. Cesalpino Foundation, Rome, Italy
| | - Antonella Minutolo
- Laboratory of Molecular Virology and Oncoloy, Francesco Balsano Foundation, ex A. Cesalpino Foundation, Rome, Italy.,Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Susan Costantini
- CROM, Istituto Nazionale Tumori "Fondazione G.Pascale", IRCSS, Napoli, Italy
| | - Marco Corazzari
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Gino Iannucci
- Laboratory of Molecular Virology and Oncoloy, Francesco Balsano Foundation, ex A. Cesalpino Foundation, Rome, Italy
| | - Barbara Barbaro
- Institute of Biology and Molecular Pathology (IBPM) - CNR (National Research Council), Rome, Italy
| | - Clara Balsano
- Laboratory of Molecular Virology and Oncoloy, Francesco Balsano Foundation, ex A. Cesalpino Foundation, Rome, Italy.,Institute of Biology and Molecular Pathology (IBPM) - CNR (National Research Council), Rome, Italy
| |
Collapse
|
23
|
Song Y, Lu S, Zhao J, Wang L. Nuclear Receptor SHP: A Critical Regulator of miRNA and lncRNA Expression and Function. NUCLEAR RECEPTOR RESEARCH 2017; 4:101312. [PMID: 30148159 PMCID: PMC6103530 DOI: 10.11131/2017/101312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Small heterodimer partner (SHP, NR0B2) is identified as a unique orphan nuclear receptor that acts as a transcriptional repressor. SHP plays a crucial role in the control of various physiological processes and in several diseases by regulating the expression of disease-specific genes. Non-coding RNAs (ncRNAs), including long noncoding RNAs (lncRNAs) and microRNAs (miRNAs), are encoded of RNAs that are transcribed but not translated into proteins, which are involved in diverse developmental and cellular processes in eukaryotic organisms. Research during the past decade has identified factors participating in the regulation of ncRNAs biogenesis and function. In this review, we summarize recent findings demonstrating a critical role of SHP as a transcriptional regulator of ncRNAs expression and function.
Collapse
Affiliation(s)
- Yongfeng Song
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
| | - Shan Lu
- Genesis Biotechnology, Trenton, NJ 08619, USA
| | - Jiajun Zhao
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
| | - Li Wang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, China
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
- Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516, USA
- Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520, USA
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| |
Collapse
|
24
|
Tran M, Lee SM, Shin DJ, Wang L. Loss of miR-141/200c ameliorates hepatic steatosis and inflammation by reprogramming multiple signaling pathways in NASH. JCI Insight 2017; 2:96094. [PMID: 29093267 DOI: 10.1172/jci.insight.96094] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/26/2017] [Indexed: 12/12/2022] Open
Abstract
Accumulation of lipid droplets and inflammatory cell infiltration is the hallmark of nonalcoholic steatohepatitis (NASH). The roles of noncoding RNAs in NASH are less known. We aim to elucidate the function of miR-141/200c in diet-induced NASH. WT and miR-141/200c-/- mice were fed a methionine and choline deficient (MCD) diet for 2 weeks to assess markers of steatosis, liver injury, and inflammation. Hepatic miR-141 and miR-200c RNA levels were highly induced in human patients with NASH fatty liver and in WT MCD mice. miR-141/200c-/- MCD mice had reduced liver weights and triglyceride (TG) levels, which was associated with increased microsomal TG transfer protein (MTTP) and PPARα but reduced SREBP1c and FAS expression. Inflammation was attenuated and F4/80 macrophage activation was suppressed in miR-141/200c-/- mice, as evidenced by decreased serum aminotransferases and IL-6 and reduced hepatic proinflammatory, neutrophil, and profibrotic genes. Treatment with LPS in BM-derived macrophages isolated from miR-200c/141-/- mice polarized macrophages toward the M2 antiinflammatory state by increasing Arg1 and IL-10 levels while decreasing the M1 marker iNOS. In addition, elevated phosphorylated AMPK (p-AMPK), p-AKT, and p-GSK3β and diminished TLR4 and p-mTOR/p-4EBP1 proteins were observed. Lipidomics and metabolomics revealed alterations of TG and phosphatidylcholine (PC) lipid species by miR-141/200c deficiency. In summary, miR-141/200c deficiency diminished NASH-associated hepatic steatosis and inflammation by reprogramming lipid and inflammation signaling pathways.
Collapse
Affiliation(s)
- Melanie Tran
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
| | - Sang-Min Lee
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
| | - Dong-Ju Shin
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
| | - Li Wang
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA.,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut, USA.,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut, USA.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| |
Collapse
|
25
|
Zhao Y, Yang Z, Wu J, Wu R, Keshipeddy SK, Wright D, Wang L. High-mobility-group protein 2 regulated by microRNA-127 and small heterodimer partner modulates pluripotency of mouse embryonic stem cells and liver tumor initiating cells. Hepatol Commun 2017; 1:816-830. [PMID: 29218329 PMCID: PMC5678910 DOI: 10.1002/hep4.1086] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
High‐mobility‐group protein 2 (HMGB2) expression is up‐regulated in human liver cancer; however, little is known about its regulatory function. Here, we establish HMGB2 as a new modulator of the pluripotency of mouse embryonic stem cells. Similar to octamer‐binding transcription factor 4 (OCT4) and sex‐determining region Y‐box 2 (SOX2), HMGB2 protein is highly expressed in undifferentiated CGR8 cells, whereas it undergoes rapid decline during embryonic body formation. HMGB2 interacts with OCT4, increases protein expression of OCT4 and SOX2, and enhances their transcriptional activities. We also show that microRNA (miRNA)‐127 is a translational repressor of HMGB2 protein expression by targeting its 3′ untranslated region. We further elucidate a transcriptional mechanism controlling HMGB2 messenger RNA expression by the nuclear receptor small heterodimer partner (SHP) and transcription factor E2F1. Diminishing HMGB2 expression by ectopic expression of miR‐127 or SHP or treatment with the small molecule inhibitor inflachromene decreases OCT4 and SOX2 expression and facilitates CGR8 differentiation. In addition, HMGB2 is markedly induced in liver tumor initiating cells. Diminishing HMGB2 expression by short hairpin RNA for HMGB2 (shHMGB2), miR‐127, or SHP impairs spheroid formation. Importantly, HMGB2 expression is elevated in various human cancers. Conclusion: HMGB2 acts upstream of OCT4/SOX2 signaling to control embryonic stem cell pluripotency. Diminishing HMGB2 expression by miR‐127 or SHP may provide a potential means to decrease the pluripotency of tumor initiating cells. (Hepatology Communications 2017;1:816–830)
Collapse
Affiliation(s)
- Yulan Zhao
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Zhihong Yang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269.,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516
| | - Jianguo Wu
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Raymond Wu
- Departments of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, 90033; and Department of Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles CA 90073
| | - Santosh K Keshipeddy
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269
| | - Dennis Wright
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Connecticut, Storrs, CT 06269
| | - Li Wang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269.,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516.,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| |
Collapse
|
26
|
Zhao Y, Lin L, Zhang Y, Geng D. SHP-2 Activating Mutation Promotes Malignant Biological Behaviors of Glioma Cells. Med Sci Monit 2017; 23:2931-2938. [PMID: 28620155 PMCID: PMC5484608 DOI: 10.12659/msm.904381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background This study investigated the mechanism underlying the activating mutation of SHP-2 in promoting malignant biological behaviors of glioma cells. Material/Methods The SHP-2 empty plasmid pcDNA3.1 and SHP-2 activating mutation plasmid pcDNA3.1 SHP-2 D61G mutant eukaryotic expression vectors were designed; stable SHP-2-expressing cells transfected with pcDNA3.1 SHP-2 D61G mutant were set as the mutation group; cells transfected with pcDNA3.1 were set as the empty vector group; and cells without transfection were set as the control group. The cell reproductive capacity in each group was measured by MTT method. The invasion ability of cells in vitro was detected by Transwell chamber assay, the cell apoptosis in each group was detected by Annexin-V/PE dual-staining method, and the clone formation ability of cells in vitro was detected by Tablet clone-forming assay. The activation of ERK1/2, ARK, and p38MAPK signal pathways in each group was determined by Western blot. Results After transfection, the expression of SHP-2 protein in the mutant group was significantly higher than that in the control group and empty vector group. The proliferation ability of transfected cells, the apoptosis rate, the invasion ability, and the expression levels of phosphorylated ERK1/2, AKT, and p38 in the mutation group was significantly higher than in the empty vector group and the control group (P<0.05). Moreover, the cell clone formation ability of the mutation group was obviously enhanced (P<0.05). Conclusions The activating mutation of SHP-2 can lead to malignant changes in biological behaviors of glioma cells, and the specific mechanism may be related to the activation of ERK1/2, AKT, and p38 signal pathway. SHP-2 protein may become a new target for anti-malignant transformation of glioma.
Collapse
Affiliation(s)
- Yong Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Lin Lin
- Fourth Affiliated Hospital , Xinjiang Medical University, Urumqi, Xinjiang, Uganda
| | - Yonghui Zhang
- Fourth Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| | - Dangmurenjiafu Geng
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China (mainland)
| |
Collapse
|
27
|
Choiniere J, Wu J, Wang L. Pyruvate Dehydrogenase Kinase 4 Deficiency Results in Expedited Cellular Proliferation through E2F1-Mediated Increase of Cyclins. Mol Pharmacol 2017; 91:189-196. [PMID: 28003426 PMCID: PMC5325080 DOI: 10.1124/mol.116.106757] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/09/2016] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common form of cancer with prevalence worldwide. There are many factors that lead to the development and progression of HCC. This study aimed to identify potential new tumor suppressors, examine their function as cell cycle modulators, and investigate their impact on the cyclin family of proteins and cyclin-dependent kinases (CDKs). In this study, the pyruvate dehydrogenase kinase (PDK)4 gene was shown to have potential tumor suppressor characteristics. PDK4 expression was significantly downregulated in human HCC. Pdk4-/- mouse liver exhibited a consistent increase in cell cycle regulator proteins, including cyclin D1, cyclin E1, cyclin A2, some associated CDKs, and transcription factor E2F1. PDK4-knockdown HCC cells also progressed faster through the cell cycle, which concurrently expressed high levels of cyclins and E2F1 as seen in the Pdk4-/- mice. Interestingly, the induced cyclin E1 and cyclin A2 caused by Pdk4 deficiency was repressed by arsenic treatment in mouse liver and in HCC cells. E2f1 deficiency in E2f1-/- mouse liver or knockdown E2F1 using small hairpin RNAs in HCC cells significantly decreased cyclin E1, cyclin A2, and E2F1 proteins. In contrast, inhibition of PDK4 activity in HCC cells increased cyclin E1, cyclin A2, and E2F1 proteins. These findings demonstrate that PDK4 is a critical regulator of hepatocyte proliferation via E2F1-mediated regulation of cyclins.
Collapse
Affiliation(s)
- Jonathan Choiniere
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut (J.C., J.W., L.W.); Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut (L.W.); Section of Digestive Diseases, Department of Internal Medicine, Yale University, New Haven, Connecticut (L.W.); and School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China (L.W.)
| | - Jianguo Wu
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut (J.C., J.W., L.W.); Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut (L.W.); Section of Digestive Diseases, Department of Internal Medicine, Yale University, New Haven, Connecticut (L.W.); and School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China (L.W.)
| | - Li Wang
- Department of Physiology and Neurobiology, Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut (J.C., J.W., L.W.); Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut (L.W.); Section of Digestive Diseases, Department of Internal Medicine, Yale University, New Haven, Connecticut (L.W.); and School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China (L.W.)
| |
Collapse
|
28
|
Niu Y, Xu M, Slagle BL, Huang H, Li S, Guo GL, Shi G, Qin W, Xie W. Farnesoid X receptor ablation sensitizes mice to hepatitis b virus X protein-induced hepatocarcinogenesis. Hepatology 2017; 65:893-906. [PMID: 28102638 PMCID: PMC5319891 DOI: 10.1002/hep.28924] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/17/2016] [Indexed: 02/05/2023]
Abstract
UNLABELLED Chronic hepatitis B virus infection is a major risk factor for hepatocellular carcinoma (HCC). Hepatitis B virus X protein (HBx) is a hepatitis B virus protein that has multiple cellular functions, but its role in HCC pathogenesis has been controversial. Farnesoid X receptor (FXR) is a nuclear receptor with activities in anti-inflammation and inhibition of hepatocarcinogenesis. However, whether or how FXR can impact hepatitis B virus/HBx-induced hepatocarcinogenesis remains unclear. In this study, we showed that HBx can interact with FXR and function as a coactivator of FXR. Expression of HBx in vivo enhanced FXR-responsive gene regulation. HBx also increased the transcriptional activity of FXR in a luciferase reporter gene assay. The HBx-FXR interaction was confirmed by coimmunoprecipitation and glutathione S-transferase pull-down assays, and the FXR activation function 1 domain was mapped to bind to the third α helix in the C terminus of HBx. We also found that the C-terminally truncated variants of HBx, which were found in clinical HCC, were not effective at transactivating FXR. Interestingly, recruitment of the full-length HBx, but not the C-terminally truncated HBx, enhanced the binding of FXR to its response element. In vivo, FXR ablation markedly sensitized mice to HBx-induced hepatocarcinogenesis. CONCLUSIONS We propose that transactivation of FXR by full-length HBx may represent a protective mechanism to inhibit HCC and that this inhibition may be compromised upon the appearance of C-terminally truncated HBx or when the expression and/or activity of FXR is decreased. (Hepatology 2017;65:893-906).
Collapse
Affiliation(s)
- Yongdong Niu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
- State Key Laboratory for Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, 200032, Shanghai, China
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Meishu Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Betty L. Slagle
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Haihua Huang
- Department of Pathology, Second Affiliated Hospital of Shantou University Medical College, 515021, Guangdong, China
| | - Song Li
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Grace L. Guo
- Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, NJ 08854, USA
| | - Ganggang Shi
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Wenxin Qin
- State Key Laboratory for Oncogenes and Related Genes, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, 200032, Shanghai, China
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Corresponding Authors: Dr. Wen Xie, University of Pittsburgh, Pittsburgh, PA 15261, USA. ; or Dr. Wenxin Qin, Shanghai Cancer Institute, Shanghai, China.
| |
Collapse
|
29
|
Zhang L, Yang Z, Trottier J, Barbier O, Wang L. Long noncoding RNA MEG3 induces cholestatic liver injury by interaction with PTBP1 to facilitate shp mRNA decay. Hepatology 2017; 65:604-615. [PMID: 27770549 PMCID: PMC5258819 DOI: 10.1002/hep.28882] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/08/2016] [Accepted: 09/09/2016] [Indexed: 12/14/2022]
Abstract
UNLABELLED Bile acids (BAs) play critical physiological functions in cholesterol homeostasis, and deregulation of BA metabolism causes cholestatic liver injury. The long noncoding RNA maternally expressed gene 3 (MEG3) was recently shown as a potential tumor suppressor; however, its basic hepatic function remains elusive. Using RNA pull-down with biotin-labeled sense or anti-sense MEG 3RNA followed by mass spectrometry, we identified RNA-binding protein polypyrimidine tract-binding protein 1 (PTBP1) as a MEG3 interacting protein and validated their interaction by RNA immunoprecipitation (RIP). Bioinformatics analysis revealed putative binding sites for PTBP1 within the coding region (CDS) of small heterodimer partner (SHP), a key repressor of BA biosynthesis. Forced expression of MEG3 in hepatocellular carcinoma cells guided and facilitated PTBP1 binding to the Shp CDS, resulting in Shp mRNA decay. Transient overexpression of MEG3 RNA in vivo in mouse liver caused rapid Shp mRNA degradation and cholestatic liver injury, which was accompanied by the disruption of BA homeostasis, elevation of liver enzymes, as well as dysregulation of BA synthetic enzymes and metabolic genes. Interestingly, RNA sequencing coupled with quantitative PCR (qPCR) revealed a drastic induction of MEG3 RNA in Shp-/- liver. SHP inhibited MEG3 gene transcription by repressing cAMP response element-binding protein (CREB) transactivation of the MEG3 promoter. In addition, the expression of MEG3 and PTBP1 was activated in human fibrotic and cirrhotic livers. CONCLUSION MEG3 causes cholestasis by serving as a guide RNA scaffold to recruit PTBP1 to destabilize Shp mRNA. SHP in turn represses CREB-mediated activation of MEG3 expression in a feedback-regulatory fashion. (Hepatology 2017;65:604-615).
Collapse
Affiliation(s)
- Li Zhang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269
| | - Zhihong Yang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516
| | - Jocelyn Trottier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre and Faculty of Pharmacy, Laval University, Québec, QC, Canada
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre and Faculty of Pharmacy, Laval University, Québec, QC, Canada
| | - Li Wang
- Department of Physiology and Neurobiology, and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China,Address reprint requests to: Li Wang, Ph.D., 75 North Eagleville Rd., U3156, Storrs, CT 06269. ; Tel: 860-486-0857; Fax: 860-486-3303
| |
Collapse
|
30
|
Leach DA, Powell SM, Bevan CL. WOMEN IN CANCER THEMATIC REVIEW: New roles for nuclear receptors in prostate cancer. Endocr Relat Cancer 2016; 23:T85-T108. [PMID: 27645052 DOI: 10.1530/erc-16-0319] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 09/19/2016] [Indexed: 12/20/2022]
Abstract
Prostate cancer has, for decades, been treated by inhibiting androgen signalling. This is effective in the majority of patients, but inevitably resistance develops and patients progress to life-threatening metastatic disease - hence the quest for new effective therapies for 'castrate-resistant' prostate cancer (CRPC). Studies into what pathways can drive tumour recurrence under these conditions has identified several other nuclear receptor signalling pathways as potential drivers or modulators of CRPC.The nuclear receptors constitute a large (48 members) superfamily of transcription factors sharing a common modular functional structure. Many of them are activated by the binding of small lipophilic molecules, making them potentially druggable. Even those for which no ligand exists or has yet been identified may be tractable to activity modulation by small molecules. Moreover, genomic studies have shown that in models of CRPC, other nuclear receptors can potentially drive similar transcriptional responses to the androgen receptor, while analysis of expression and sequencing databases shows disproportionately high mutation and copy number variation rates among the superfamily. Hence, the nuclear receptor superfamily is of intense interest in the drive to understand how prostate cancer recurs and how we may best treat such recurrent disease. This review aims to provide a snapshot of the current knowledge of the roles of different nuclear receptors in prostate cancer - a rapidly evolving field of research.
Collapse
Affiliation(s)
- Damien A Leach
- Division of CancerImperial Centre for Translational & Experimental Medicine, Imperial, College London, Hammersmith Hospital Campus, London, UK
| | - Sue M Powell
- Division of CancerImperial Centre for Translational & Experimental Medicine, Imperial, College London, Hammersmith Hospital Campus, London, UK
| | - Charlotte L Bevan
- Division of CancerImperial Centre for Translational & Experimental Medicine, Imperial, College London, Hammersmith Hospital Campus, London, UK
| |
Collapse
|
31
|
Rudraiah S, Zhang X, Wang L. Nuclear Receptors as Therapeutic Targets in Liver Disease: Are We There Yet? Annu Rev Pharmacol Toxicol 2016; 56:605-626. [PMID: 26738480 DOI: 10.1146/annurev-pharmtox-010715-103209] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nuclear receptors (NR) are ligand-modulated transcription factors that play diverse roles in cell differentiation, development, proliferation, and metabolism and are associated with numerous liver pathologies such as cancer, steatosis, inflammation, fibrosis, cholestasis, and xenobiotic/drug-induced liver injury. The network of target proteins associated with NRs is extremely complex, comprising coregulators, small noncoding microRNAs, and long noncoding RNAs. The importance of NRs as targets of liver disease is exemplified by the number of NR ligands that are currently used in the clinics or in clinical trials with promising results. Understanding the regulation by NR during pathophysiological conditions, and identifying ligands for orphan NR, points to a potential therapeutic approach for patients with liver diseases. An overview of complex NR metabolic networks and their pharmacological implications in liver disease is presented here.
Collapse
Affiliation(s)
- Swetha Rudraiah
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut 06269
| | - Xi Zhang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut 06269
| | - Li Wang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut 06269.,Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut 06516.,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut 06520
| |
Collapse
|
32
|
Crosstalk of HNF4 α with extracellular and intracellular signaling pathways in the regulation of hepatic metabolism of drugs and lipids. Acta Pharm Sin B 2016; 6:393-408. [PMID: 27709008 PMCID: PMC5045537 DOI: 10.1016/j.apsb.2016.07.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/05/2016] [Accepted: 05/11/2016] [Indexed: 12/15/2022] Open
Abstract
The liver is essential for survival due to its critical role in the regulation of metabolic homeostasis. Metabolism of xenobiotics, such as environmental chemicals and drugs by the liver protects us from toxic effects of these xenobiotics, whereas metabolism of cholesterol, bile acids (BAs), lipids, and glucose provide key building blocks and nutrients to promote the growth or maintain the survival of the organism. As a well-established master regulator of liver development and function, hepatocyte nuclear factor 4 alpha (HNF4α) plays a critical role in regulating a large number of key genes essential for the metabolism of xenobiotics, metabolic wastes, and nutrients. The expression and activity of HNF4α is regulated by diverse hormonal and signaling pathways such as growth hormone, glucocorticoids, thyroid hormone, insulin, transforming growth factor-β, estrogen, and cytokines. HNF4α appears to play a central role in orchestrating the transduction of extracellular hormonal signaling and intracellular stress/nutritional signaling onto transcriptional changes in the liver. There have been a few reviews on the regulation of drug metabolism, lipid metabolism, cell proliferation, and inflammation by HNF4α. However, the knowledge on how the expression and transcriptional activity of HNF4α is modulated remains scattered. Herein I provide comprehensive review on the regulation of expression and transcriptional activity of HNF4α, and how HNF4α crosstalks with diverse extracellular and intracellular signaling pathways to regulate genes essential in liver pathophysiology.
Collapse
|
33
|
Yang Z, Koehler AN, Wang L. A Novel Small Molecule Activator of Nuclear Receptor SHP Inhibits HCC Cell Migration via Suppressing Ccl2. Mol Cancer Ther 2016; 15:2294-2301. [PMID: 27486225 DOI: 10.1158/1535-7163.mct-16-0153] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/23/2016] [Indexed: 12/15/2022]
Abstract
Small heterodimer partner (SHP, NR0B2) is a nuclear orphan receptor without endogenous ligands. Due to its crucial inhibitory role in liver cancer, it is of importance to identify small molecule agonists of SHP. As such, we initiated a probe discovery effort to identify compounds capable of modulating SHP function. First, we performed binding assays using small molecule microarrays (SMM) and discovered 5-(diethylsulfamoyl)-3-hydroxynaphthalene-2-carboxylic acid (DSHN) as a novel activator of SHP. DSHN transcriptionally activated Shp mRNA, but also stabilized the SHP protein by preventing its ubiquitination and degradation. Second, we identified Ccl2 as a new SHP target gene by RNA-seq. We showed that activation of SHP by DSHN repressed Ccl2 expression and secretion by inhibiting p65 activation of CCL2 promoter activity, as demonstrated in vivo in Shp-/- mice and in vitro in HCC cells with SHP overexpression and knockdown. Third, we elucidated a strong inhibitory effect of SHP and DSHN on HCC cell migration and invasion by antagonizing the effect of CCL2. Lastly, by interrogating a publicly available database to retrieve SHP expression profiles from multiple types of human cancers, we established a negative association of SHP expression with human cancer metastasis and patient survival. In summary, the discovery of a novel small molecule activator of SHP provides a therapeutic perspective for future translational and preclinical studies to inhibit HCC metastasis by blocking Ccl2 signaling. Mol Cancer Ther; 15(10); 2294-301. ©2016 AACR.
Collapse
Affiliation(s)
- Zhihong Yang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut. Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut
| | - Angela N Koehler
- Department of Biological Engineering, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts. Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Li Wang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut. Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut. Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut. School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| |
Collapse
|
34
|
Halilbasic E, Fuchs C, Traussnigg S, Trauner M. Farnesoid X Receptor Agonists and Other Bile Acid Signaling Strategies for Treatment of Liver Disease. Dig Dis 2016; 34:580-8. [PMID: 27332721 DOI: 10.1159/000445268] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The intracellular nuclear receptor farnesoid X receptor (FXR) and the transmembrane G protein-coupled receptor 5 (TGR5) respond to bile acids (BAs) by activating transcriptional networks and/or signaling cascades. These cascades affect the expression of a great number of target genes relevant for BA, cholesterol, lipid and carbohydrate metabolism, as well as genes involved in inflammation, fibrosis and carcinogenesis. FXR activation in the liver tissue and beyond, such as the gut-liver axis, kidney and adipose tissue, plays a role in metabolic diseases. These BA receptors activators hold promise to become a new class of drugs to be used in the treatment of chronic liver disease, hepatocellular cancer and extrahepatic inflammatory and metabolic diseases. This review discusses the relevant BA receptors, the new drugs that target BA transport and signaling and their possible applications.
Collapse
Affiliation(s)
- Emina Halilbasic
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | | | | | | |
Collapse
|
35
|
Wang W, Zhan M, Li Q, Chen W, Chu H, Huang Q, Hou Z, Man M, Wang J. FXR agonists enhance the sensitivity of biliary tract cancer cells to cisplatin via SHP dependent inhibition of Bcl-xL expression. Oncotarget 2016; 7:34617-34629. [PMID: 27127878 PMCID: PMC5085180 DOI: 10.18632/oncotarget.8964] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 04/11/2016] [Indexed: 02/05/2023] Open
Abstract
Chemoresistance is common in patients with biliary tract cancer (BTC) including gallbladder cancer (GBC) and cholangiocarcinoma (CC). Therefore, it is necessary to identify effective chemotherapeutic agents for BTC. In the present study, we for the first time tested the effect of farnesoid X receptor (FXR) agonists GW4064 and CDCA (chenodeoxycholic acid) in combination with cisplatin (CDDP) on increasing the chemosensitivity in BTC. Our results show that co-treatment of CDDP with FXR agonists remarkably enhance chemosensitivity of BTC cells. Mechanistically, we found that activation of FXR induced expression of small heterodimer partner (SHP), which in turn inhibited signal transducer and activator of transcription 3 (STAT3) phosphorylation and resulted in down-regulation of Bcl-xL expression in BTC cells, leading to increased susceptibility to CDDP. Moreover, the experiments on tumor-bearing mice showed that GW4064/CDDP co-treatment inhibited the tumor growth in vivo by up-regulating SHP expression and down-regulating STAT3 phosphorylation. These results suggest CDDP in combination with FXR agonists could be a potential new therapeutic strategy for BTC.
Collapse
Affiliation(s)
- Wei Wang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Ming Zhan
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Qi Li
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Wei Chen
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Huiling Chu
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Qihong Huang
- The Wistar Institute, Philadelphia, PA 19104, USA
| | - Zhaoyuan Hou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Mohan Man
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Jian Wang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| |
Collapse
|
36
|
Zhang X, Wu J, Choiniere J, Yang Z, Huang Y, Bennett J, Wang L. Arsenic silences hepatic PDK4 expression through activation of histone H3K9 methylatransferase G9a. Toxicol Appl Pharmacol 2016; 304:42-7. [PMID: 27217333 DOI: 10.1016/j.taap.2016.05.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 05/03/2016] [Accepted: 05/19/2016] [Indexed: 12/25/2022]
Abstract
It is well established that increased liver cancer incidence is strongly associated with epigenetic silencing of tumor suppressor genes; the latter is contributed by the environmental exposure to arsenic. Pyruvate dehydrogenase kinase 4 (PDK4) is a mitochondrial protein that regulates the TCA cycle. However, the epigenetic mechanisms mediated by arsenic to control PDK4 expression remain elusive. In the present study, we showed that histone methyltransferase G9a- and Suv39H-mediated histone H3 lysine 9 (H3K9) methylations contributed to PDK4 silencing in hepatic cells. The PDK4 expression was induced by G9a inhibitor BRD4770 (BRD) and Suv39H inhibitor Chaetocin (CHA). In contrast, arsenic exposure decreased PDK4 expression by inducing G9a and increasing H3K9 di- and tri-methylations levels (H3K9me2/3). In addition, arsenic exposure antagonizes the effect of BRD by enhancing the enrichment of H3K9me2/3 in the PKD4 promoter. Moreover, knockdown of G9a using siRNA induced PDK4 expression in HCC cells. Furthermore, arsenic decreased hepatic PDK4 expression as well as diminished the induction of PDK4 by BRD in mouse liver and hepatocytes. Overall, the results suggest that arsenic causes aberrant repressive histone modification to silence PDK4 in both HCC cells and in mouse liver.
Collapse
Affiliation(s)
- Xi Zhang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States
| | - Jianguo Wu
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States
| | - Jonathan Choiniere
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States
| | - Zhihong Yang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States; Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516, United States
| | - Yi Huang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jason Bennett
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States
| | - Li Wang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, CT 062696, United States; Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516, United States; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520, United States.
| |
Collapse
|
37
|
Qiu H, Zhong R, Liu H, Zhang F, Li S, Le W. Chronic Sleep Deprivation Exacerbates Learning-Memory Disability and Alzheimer’s Disease-Like Pathologies in AβPPswe/PS1ΔE9 Mice. J Alzheimers Dis 2016; 50:669-85. [PMID: 26757041 DOI: 10.3233/jad-150774] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hongyan Qiu
- Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Rujia Zhong
- The Center for Translational Research on Neurological Diseases, The First Affiliated Hospital, Dalian Medical University, Dalian, P.R. China
| | - Hui Liu
- Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Feng Zhang
- The Center for Translational Research on Neurological Diseases, The First Affiliated Hospital, Dalian Medical University, Dalian, P.R. China
| | - Song Li
- The Center for Translational Research on Neurological Diseases, The First Affiliated Hospital, Dalian Medical University, Dalian, P.R. China
| | - Weidong Le
- Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
- The Center for Translational Research on Neurological Diseases, The First Affiliated Hospital, Dalian Medical University, Dalian, P.R. China
| |
Collapse
|
38
|
POD-1/TCF21 Reduces SHP Expression, Affecting LRH-1 Regulation and Cell Cycle Balance in Adrenocortical and Hepatocarcinoma Tumor Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:841784. [PMID: 26421305 PMCID: PMC4572413 DOI: 10.1155/2015/841784] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 06/12/2015] [Accepted: 06/24/2015] [Indexed: 01/09/2023]
Abstract
POD-1/TCF21 may play a crucial role in adrenal and gonadal homeostasis and represses Sf-1/SF-1 expression in adrenocortical tumor cells. SF-1 and LRH-1 are members of the Fzt-F1 subfamily of nuclear receptors. LRH-1 is involved in several biological processes, and both LRH-1 and its repressor SHP are involved in many types of cancer. In order to assess whether POD-1 can regulate LRH-1 via the same mechanism that regulates SF-1, we analyzed the endogenous mRNA levels of POD-1, SHP, and LRH-1 in hepatocarcinoma and adrenocortical tumor cells using qRT-PCR. Hereafter, these tumor cells were transiently transfected with pCMVMycPod-1, and the effect of POD-1 overexpression on E-box elements in the LRH-1 and SHP promoter region were analyzed by ChIP assay. Also, Cyclin E1 protein expression was analyzed to detect cell cycle progression. We found that POD-1 overexpression significantly decreased SHP/SHP mRNA and protein levels through POD-1 binding to the E-box sequence in the SHP promoter. Decreased SHP expression affected LRH-1 regulation and increased Cyclin E1. These findings show that POD-1/TCF21 regulates SF-1 and LRH-1 by distinct mechanisms, contributing to the understanding of POD-1 involvement and its mechanisms of action in adrenal and liver tumorigenesis, which could lead to the discovery of relevant biomarkers.
Collapse
|
39
|
Zou A, Lehn S, Magee N, Zhang Y. New Insights into Orphan Nuclear Receptor SHP in Liver Cancer. NUCLEAR RECEPTOR RESEARCH 2015; 2. [PMID: 26504773 PMCID: PMC4618403 DOI: 10.11131/2015/101162] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Small heterodimer partner (SHP; NR0B2) is a unique orphan nuclear receptor (NR) that contains a putative ligand-binding domain but lacks a DNA-binding domain. SHP is a transcriptional corepressor affecting diverse metabolic processes including bile acid synthesis, cholesterol and lipid metabolism, glucose and energy homeostasis, and reproductive biology via interaction with multiple NRs and transcriptional factors (TFs). Hepatocellular carcinoma (HCC) is one of the most deadly human cancers worldwide with few therapeutic options and poor prognosis. Recently, it is becoming clear that SHP plays an antitumor role in the development of liver cancer. In this review, we summarize the most recent findings regarding the new SHP interaction partners, new structural insights into SHP’s gene repressing activity, and SHP protein posttranslational modifications by bile acids. We also discuss the pleiotropic role of SHP in regulating cell proliferation, apoptosis, DNA methylation, and inflammation that are related to antitumor role of SHP in HCC. Improving our understanding of SHP’s antitumor role in the development of liver cancer will provide new insights into developing novel treatments or prevention strategies. Future research will focus on developing more efficacious and specific synthetic SHP ligands for pharmaceutical applications in liver cancer and several metabolic diseases such as hypercholesterolemia, obesity, diabetes, and fatty liver disease.
Collapse
Affiliation(s)
- An Zou
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Sarah Lehn
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Nancy Magee
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Yuxia Zhang
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160, USA
| |
Collapse
|
40
|
Tsuchiya H, da Costa KA, Lee S, Renga B, Jaeschke H, Yang Z, Orena SJ, Goedken MJ, Zhang Y, Kong B, Lebofsky M, Rudraiah S, Smalling R, Guo G, Fiorucci S, Zeisel SH, Wang L. Interactions Between Nuclear Receptor SHP and FOXA1 Maintain Oscillatory Homocysteine Homeostasis in Mice. Gastroenterology 2015; 148:1012-1023.e14. [PMID: 25701738 PMCID: PMC4409521 DOI: 10.1053/j.gastro.2015.01.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 01/27/2015] [Accepted: 01/30/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS Hyperhomocysteinemia is often associated with liver and metabolic diseases. We studied nuclear receptors that mediate oscillatory control of homocysteine homeostasis in mice. METHODS We studied mice with disruptions in Nr0b2 (called small heterodimer partner [SHP]-null mice), betaine-homocysteine S-methyltransferase (Bhmt), or both genes (BHMT-null/SHP-null mice), along with mice with wild-type copies of these genes (controls). Hyperhomocysteinemia was induced by feeding mice alcohol (National Institute on Alcohol Abuse and Alcoholism binge model) or chow diets along with water containing 0.18% DL-homocysteine. Some mice were placed on diets containing cholic acid (1%) or cholestyramine (2%) or high-fat diets (60%). Serum and livers were collected during a 24-hour light-dark cycle and analyzed by RNA-seq, metabolomic, and quantitative polymerase chain reaction, immunoblot, and chromatin immunoprecipitation assays. RESULTS SHP-null mice had altered timing in expression of genes that regulate homocysteine metabolism compared with control mice. Oscillatory production of S-adenosylmethionine, betaine, choline, phosphocholine, glyceophosphocholine, cystathionine, cysteine, hydrogen sulfide, glutathione disulfide, and glutathione, differed between SHP-null mice and control mice. SHP inhibited transcriptional activation of Bhmt and cystathionine γ-lyase by FOXA1. Expression of Bhmt and cystathionine γ-lyase was decreased when mice were fed cholic acid but increased when they were placed on diets containing cholestyramine or high-fat content. Diets containing ethanol or homocysteine induced hyperhomocysteinemia and glucose intolerance in control, but not SHP-null, mice. In BHMT-null and BHMT-null/SHP-null mice fed a control liquid, lipid vacuoles were observed in livers. Ethanol feeding induced accumulation of macrovesicular lipid vacuoles to the greatest extent in BHMT-null and BHMT-null/SHP-null mice. CONCLUSIONS Disruption of Shp in mice alters timing of expression of genes that regulate homocysteine metabolism and the liver responses to ethanol and homocysteine. SHP inhibits the transcriptional activation of Bhmt and cystathionine γ-lyase by FOXA1.
Collapse
Affiliation(s)
- Hiroyuki Tsuchiya
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Kerry-Ann da Costa
- Nutrition Research Institute, Department of Nutrition, University of North Carolina at Chapel Hill, North Carolina
| | - Sangmin Lee
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut
| | - Barbara Renga
- Dipartimento di Scienze Chirurgiche e Biomediche, University of Perugia, Perugia, Italy
| | - Hartmut Jaeschke
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Zhihong Yang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut; Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut
| | - Stephen J Orena
- Nutrition Research Institute, Department of Nutrition, University of North Carolina at Chapel Hill, North Carolina
| | | | - Yuxia Zhang
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Bo Kong
- Department of Pharmacology and Toxicology of School of Pharmacy, Rutgers University, Piscataway, New Jersey
| | - Margitta Lebofsky
- Department of Pharmacology, Toxicology & Therapeutics, University of Kansas Medical Center, Kansas City, Kansas
| | - Swetha Rudraiah
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut
| | - Rana Smalling
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Grace Guo
- Department of Pharmacology and Toxicology of School of Pharmacy, Rutgers University, Piscataway, New Jersey
| | - Stefano Fiorucci
- Dipartimento di Scienze Chirurgiche e Biomediche, University of Perugia, Perugia, Italy
| | - Steven H Zeisel
- Nutrition Research Institute, Department of Nutrition, University of North Carolina at Chapel Hill, North Carolina
| | - Li Wang
- Department of Physiology and Neurobiology and The Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut; Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, Connecticut.
| |
Collapse
|
41
|
Benet M, Guzmán C, Pisonero-Vaquero S, García-Mediavilla MV, Sánchez-Campos S, Martínez-Chantar ML, Donato MT, Castell JV, Jover R. Repression of the nuclear receptor small heterodimer partner by steatotic drugs and in advanced nonalcoholic fatty liver disease. Mol Pharmacol 2015; 87:582-94. [PMID: 25576488 DOI: 10.1124/mol.114.096313] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The small heterodimer partner (SHP) (NR0B2) is an atypical nuclear receptor that lacks a DNA-binding domain. It interacts with and inhibits many transcription factors, affecting key metabolic processes, including bile acid, cholesterol, fatty acid, and drug metabolism. Our aim was to determine the influence of steatotic drugs and nonalcoholic fatty liver disease (NAFLD) on SHP expression and investigate the potential mechanisms. SHP was found to be repressed by steatotic drugs (valproate, doxycycline, tetracycline, and cyclosporin A) in cultured hepatic cells and the livers of different animal models of NAFLD: iatrogenic (tetracycline-treated rats), genetic (glycine N-methyltransferase-deficient mice), and nutritional (mice fed a methionine- and choline-deficient diet). Among the different transcription factors investigated, CCAAT-enhancer-binding protein α (C/EBPα) showed the strongest dominant-repressive effect on SHP expression in HepG2 and human hepatocytes. Reporter assays revealed that the inhibitory effect of C/EBPα and steatotic drugs colocalize between -340 and -509 base pair of the SHP promoter, and mutation of a predicted C/EBPα response element at -473 base pair abolished SHP repression by both C/EBPα and drugs. Moreover, inhibition of major stress signaling pathways demonstrated that the mitogen-activated protein kinase kinase 1/2 pathway activates, while the phosphatidylinositol 3 kinase pathway represses SHP in a C/EBP-dependent manner. We conclude that SHP is downregulated by several steatotic drugs and in advanced NAFLD. These conditions can activate signals that target C/EBPα and consequently repress SHP, thus favoring the progression and severity of NAFLD.
Collapse
Affiliation(s)
- Marta Benet
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - Carla Guzmán
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - Sandra Pisonero-Vaquero
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - M Victoria García-Mediavilla
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - Sonia Sánchez-Campos
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - M Luz Martínez-Chantar
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - M Teresa Donato
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - José Vicente Castell
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| | - Ramiro Jover
- Experimental Hepatology Unit, IIS Hospital La Fe, Valencia (M.B., C.G., M.T.D., J.V.C., R.J.); CIBERehd, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona (M.B., M.V.G.-M., S.S.-C., M.L.M.-C., M.T.D., J.V.C., R.J.); Institute of Biomedicine, University of León, León (S.P.-V., M.V.G.-M., S.S.-C.); CIC bioGUNE, Technology Park of Bizkaia, Derio (M.L.M.-C.); and Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain (M.T.D., J.V.C., R.J.)
| |
Collapse
|
42
|
Yang CS, Kim JJ, Kim TS, Lee PY, Kim SY, Lee HM, Shin DM, Nguyen LT, Lee MS, Jin HS, Kim KK, Lee CH, Kim MH, Park SG, Kim JM, Choi HS, Jo EK. Small heterodimer partner interacts with NLRP3 and negatively regulates activation of the NLRP3 inflammasome. Nat Commun 2015; 6:6115. [PMID: 25655831 PMCID: PMC4347017 DOI: 10.1038/ncomms7115] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/18/2014] [Indexed: 01/17/2023] Open
Abstract
Excessive activation of the NLRP3 inflammasome results in damaging inflammation, yet the regulators of this process remain poorly defined. Herein, we show that the orphan nuclear receptor small heterodimer partner (SHP) is a negative regulator of NLRP3 inflammasome activation. NLRP3 inflammasome activation leads to an interaction between SHP and NLRP3, proteins that are both recruited to mitochondria. Overexpression of SHP competitively inhibits binding of NLRP3 to apoptosis-associated speck-like protein containing a CARD (ASC). SHP deficiency results in increased secretion of proinflammatory cytokines IL-1β and IL-18, and excessive pathologic responses typically observed in mouse models of kidney tubular necrosis and peritoneal gout. Notably, the loss of SHP results in accumulation of damaged mitochondria and a sustained interaction between NLRP3 and ASC in the endoplasmic reticulum. These data are suggestive of a role for SHP in controlling NLRP3 inflammasome activation through a mechanism involving interaction with NLRP3 and maintenance of mitochondrial homeostasis.
Collapse
Affiliation(s)
- Chul-Su Yang
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [3] Department of Molecular and Life Science, College of Science and Technology, Hanyang University, Ansan 426-791, South Korea
| | - Jwa-Jin Kim
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [3] Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, South Korea
| | - Tae Sung Kim
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| | - Phil Young Lee
- Medical Proteomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Soo Yeon Kim
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| | - Hye-Mi Lee
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| | - Dong-Min Shin
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| | - Loi T Nguyen
- Infection and Immunity Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Moo-Seung Lee
- Infection and Immunity Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Hyo Sun Jin
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| | - Kwang-Kyu Kim
- Department of Biology, College of Life Science, Daejeon University, Daejeon 300-716, South Korea
| | - Chul-Ho Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Myung Hee Kim
- Infection and Immunity Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Sung Goo Park
- Medical Proteomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, South Korea
| | - Jin-Man Kim
- 1] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2]
| | - Hueng-Sik Choi
- National Creative Research Initiatives Center for Nuclear Receptor Signals and Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Eun-Kyeong Jo
- 1] Department of Microbiology, Chungnam National University School of Medicine, Daejeon 301-747, South Korea [2] Infection Signaling Network Research Center, Chungnam National University School of Medicine, Daejeon 301-747, South Korea
| |
Collapse
|
43
|
Lee SM, Zhang Y, Tsuchiya H, Smalling R, Jetten AM, Wang L. Small heterodimer partner/neuronal PAS domain protein 2 axis regulates the oscillation of liver lipid metabolism. Hepatology 2015; 61:497-505. [PMID: 25212631 PMCID: PMC4303514 DOI: 10.1002/hep.27437] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 09/10/2014] [Indexed: 12/16/2022]
Abstract
UNLABELLED In mammals, circadian rhythms are essential for coordinating the timing of various metabolic processes. The Clock gene regulates diurnal plasma triglyceride fluctuation through nuclear receptor small heterodimer partner (Shp; Nr0b2). Given that SHP is a critical regulator of metabolism in the liver, it is unknown whether SHP is necessary to coordinate metabolism and circadian rhythms. Shp(+/+) and Shp(-/-) mice on a C57BL/6 background (n = 3-5/group) were fed a standard chow diet and water ad libitum. Serum and livers were collected at zeitgeber time 2, 6, 10, 14, 18, and 22. In vivo and in vitro assays included RNA sequencing, quantitative polymerase chain reaction, very-low-density lipoprotein production, adenovirus overexpression and small interfering RNA knockdown, serum parameters, circadian locomotor activity, Oil Red O staining, transient transfection, luciferase reporter assay, chromatin immunoprecipitation assay, gel-shift assay, coimmunoprecipitation, and western blottings. Shp deficiency had a robust global impact on major liver metabolic genes. Several components of the liver clock, including peroxisome proliferator-activated receptor-γ, coactivator 1 (Pgc-1α), neuronal PAS domain-containing protein 2 (Npas2), and retinoic acid-related orphan receptor (Ror)α/γ were sharply induced in Shp(-/-) liver. At the molecular level, SHP inhibited Npas2 gene transcription and promoter activity through interaction with Rorγ to repress Rorγ transactivation and by interacting with Rev-erbα to enhance its inhibition of Rorα activity. Conversely, Npas2 controlled the circadian rhythm of Shp expression by binding rhythmically to the Shp promoter, which was enhanced by nicotinamide adenine dinucleotide, but not nicotinamide adenine dinucleotide phosphate. Phenotypically, Npas2 deficiency induced severe steatosis in Shp(-/-) mice, which was attributed to the dysregulation of lipoprotein metabolism. CONCLUSION Shp and Npas2 crosstalk is essential to maintain hepatic lipid homeostasis.
Collapse
Affiliation(s)
- Sang Min Lee
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT 06269
| | - Yuxia Zhang
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Hiroyuki Tsuchiya
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Rana Smalling
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Anton M. Jetten
- Cell Biology Section, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health Research Triangle Park, NC 27709
| | - Li Wang
- Department of Physiology and Neurobiology, University of Connecticut, Storrs, CT 06269,Department of Internal Medicine, Section of Digestive Diseases, Yale University, New Haven, CT 06520,Veterans Affairs Connecticut Healthcare System, West Haven, CT 06516,Correspondence: Tel: 801-739-4646;
| |
Collapse
|
44
|
Abstract
Farnesoid X receptor (FXR) is a member of the nuclear receptor family and a ligand-modulated transcription factor. In the liver, FXR has been considered a multi-functional cell protector and a tumor suppressor. FXR can suppress liver carcinogenesis via different mechanisms: 1) FXR maintains the normal liver metabolism of bile acids, glucose and lipids; 2) FXR promotes liver regeneration and repair after injury; 3) FXR protects liver cells from death and enhances cell survival; 4) FXR suppresses hepatic inflammation, thereby preventing inflammatory damage; and 5) FXR can directly increase the expression of some tumor-suppressor genes and repress the transcription of several oncogenes. However, inflammation and epigenetic silencing are known to decrease FXR expression during tumorigenesis. The reactivation of FXR function in the liver may be a potential therapeutic approach for patients with liver cancer.
Collapse
|
45
|
Myronovych A, Salazar-Gonzales RM, Ryan KK, Miles L, Zhang W, Jha P, Wang L, Setchell KDR, Seeley RJ, Kohli R. The role of small heterodimer partner in nonalcoholic fatty liver disease improvement after sleeve gastrectomy in mice. Obesity (Silver Spring) 2014; 22:2301-11. [PMID: 25376397 PMCID: PMC4286402 DOI: 10.1002/oby.20890] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 08/18/2014] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Bile acids (BA) are elevated after vertical sleeve gastrectomy (VSG) and farnesoid-X-receptor (FXR) is critical to the success of murine VSG. BA downregulate hepatic lipogenesis by activating the FXR-small heterodimer partner (SHP) pathway. The role of SHP in fatty liver disease improvement after VSG was tested. METHODS Wild type (WT), SHP liver transgenic (SHP-Tg), and SHP knockout (SHP-KO) high-fat diet (HFD) fed mice underwent either VSG or Sham surgery. Body weight, BA level and composition, steatosis, and BA metabolism gene expression were evaluated. RESULTS Obese WT mice post-VSG lost weight, reduced steatosis, decreased plasma alanine aminotransferase (ALT), had more BA absorptive ileal area, and elevated serum BA. Obese SHP-Tg mice post-VSG also lost weight and had decreased steatosis. SHP-KO mice were however resistant to steatosis despite weight gain on a HFD. Further SHP-KO mice that underwent VSG lost weight, but developed hepatic inflammation and had increased ALT. CONCLUSIONS VSG produces weight loss independent of SHP status. SHP ablation creates a proinflammatory phenotype which is exacerbated after VSG despite weight loss. These inflammatory alterations are possibly related to factors extrinsic to a direct manifestation of NASH.
Collapse
Affiliation(s)
- Andriy Myronovych
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Rosa-Maria Salazar-Gonzales
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Karen K. Ryan
- Metabolic Diseases Institute, Department of Internal Medicine, University of Cincinnati College of Medicine, 2170 E. Galbraith Road, Cincinnati, Ohio, USA
| | - Lili Miles
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Wujuan Zhang
- Department of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Pinky Jha
- Department of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Li Wang
- Departments of Medicine and Oncological Sciences, Huntsman Cancer Institute, University of Utah School of Medicine, 30 North 1900 East SOM 4R118, Salt Lake City, Utah, USA
| | - Kenneth DR Setchell
- Department of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
| | - Randy J Seeley
- Metabolic Diseases Institute, Department of Internal Medicine, University of Cincinnati College of Medicine, 2170 E. Galbraith Road, Cincinnati, Ohio, USA
| | - Rohit Kohli
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, Ohio, USA
- Metabolic Diseases Institute, Department of Internal Medicine, University of Cincinnati College of Medicine, 2170 E. Galbraith Road, Cincinnati, Ohio, USA
| |
Collapse
|
46
|
Zhang Y, Xu N, Xu J, Kong B, Copple B, Guo GL, Wang L. E2F1 is a novel fibrogenic gene that regulates cholestatic liver fibrosis through the Egr-1/SHP/EID1 network. Hepatology 2014; 60:919-30. [PMID: 24619556 PMCID: PMC4146672 DOI: 10.1002/hep.27121] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 03/07/2014] [Indexed: 01/06/2023]
Abstract
UNLABELLED E2F transcription factor 1 (E2F1) is an important regulator of metabolic diseases; however, its role in liver function remains elusive. This study unraveled a regulatory cascade involving E2F1, early growth response-1 (Egr-1), nuclear receptor small heterodimer partner (SHP, NR0B2), and EIA-like inhibitor of differentiation 1 (EID1) in cholestatic liver fibrosis. Liver E2F1 messenger RNA (mRNA) and protein expression was strongly up-regulated in human nonalcoholic steatohepatitis (NASH) and alcohol cirrhosis; the latter was inversely correlated with diminished SHP expression. E2F1 was also highly induced by 3,5-diethoxycarbonyl-1, 4-dihydrocollidine (DDC) feeding and bile-duct ligation (BDL) in mice. E2F1-/- mice exhibited reduced biliary fibrosis by DDC as determined by Masson Trichrome and Picro Sirius red staining, and decreased serum bile acid (BA), BA pool size, and fecal BA excretion. In addition, cholestatic liver fibrosis induced by BDL, as determined by immunohistochemistry analysis of a1 collagen expression, was increased in SHP-/- mice but attenuated in hepatocyte SHP-overexpressed transgenic (STG) mice. Egr-1 exhibited marked induction in livers of SHP-/- mice compared to the wild-type mice in both sham and BDL groups, and reduction in STG livers. Egr-1 promoter was activated by E2F1, and the activation was abrogated by expression of SHP and its co-repressor EID1 in hepatoma cells Huh7, Hepa1, and stellate cells LX2. Chromatin immunoprecipitation assays further confirmed the association of E2F1, SHP, and EID1 proteins with the Egr-1 promoter, and their direct protein interactions were determined by glutathione S-transferase pull-down assays. Interestingly, E2F1 activated Egr-1 expression in a biphasic fashion as described in both human and mouse hepatocytes. CONCLUSION E2F1 is a fibrogenic gene and could serve as a potential new diagnostic marker for nonalcoholic and alcoholic liver fibrosis/cirrhosis.
Collapse
Affiliation(s)
- Yuxia Zhang
- Departments of Medicine and Oncological Sciences, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Ningyi Xu
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jun Xu
- Departments of Medicine and Oncological Sciences, University of Utah School of Medicine, Salt Lake City, UT 84132,College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Bo Kong
- Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, NJ 08854
| | - Bryan Copple
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824
| | - Grace L. Guo
- Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, NJ 08854
| | - Li Wang
- Departments of Medicine and Oncological Sciences, University of Utah School of Medicine, Salt Lake City, UT 84132,Correspondence: Tel, 801-587-4616; Fax, 801-585-0187;
| |
Collapse
|
47
|
Ogata M, Awaji T, Iwasaki N, Fujimaki R, Takizawa M, Maruyama K, Bell GI, Iwamoto Y, Uchigata Y. Localization of hepatocyte nuclear factor-4α in the nucleolus and nucleus is regulated by its C-terminus. J Diabetes Investig 2014; 3:449-56. [PMID: 24843605 PMCID: PMC4019245 DOI: 10.1111/j.2040-1124.2012.00210.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Aims/Introduction: Mutations in hepatocyte nuclear factor‐4α (HNF4α) lead to various diseases, among which C‐terminal deletions of HNF4α are exclusively responsible for maturity onset diabetes of the young 1 (MODY1). MODY is an autosomal dominant disease characterized by a primary defect in insulin response to glucose, suggesting that the C‐terminus of HNF4α is important for pancreatic β‐cell function. To clarify the role of the C‐terminus of HNF4α, changes in cellular localization and the binding ability to its regulator were examined, specifically in the region containing Q268, which deletion causes MODY1. Materials and Methods: Cellular localization of mutant HNF4α were examined in monkey kidney 7 (COS7), Chinese hamster ovary, rat insulinoma and mouse insulinoma cells, and their binding activity to other proteins were examined by fluorescence resonance energy transfer (FRET) in COS7 cells. Results: Although wild‐type HNF4α was localized in the nucleoplasm in transfected cultured cells, Q268X‐HNF4α was located predominantly in the nucleolus. Deletion analysis of the C‐terminus of HNF4α showed that the S337X‐HNF4α mutant, and other mutants with shorter amino acid sequences (S337‐K194), were mostly localized in the nucleolus. HNF4α mutants with amino acid sequences shorter than the W192X‐HNF4α mutant gradually spread to the nucleoplasm in accordance with their lengths. The A250X‐HNF4α mutant was capable of causing the accumulation of HNF4α or the small heterodimer partner (SHP), one of the HNF4α regulators, in the nucleolus. However, the R154X‐HNF4α mutant did not have binding ability to wild‐type HNF4α or SHP, and thus was seen in the nucleus. Conclusions: The C‐terminus sites might play a key role in facilitating the nucleolar and subnucleolar localization of HNF4α. (J Diabetes Invest, doi: 10.1111/j.2040‐1124.2012.00210.x, 2012)
Collapse
Affiliation(s)
- Makiko Ogata
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| | - Takeo Awaji
- Department of Pharmacology, Saitama Medical University School of Medicine, Saitama, Japan
| | - Naoko Iwasaki
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| | - Risa Fujimaki
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| | - Miho Takizawa
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| | - Kei Maruyama
- Department of Pharmacology, Saitama Medical University School of Medicine, Saitama, Japan
| | - Graeme I Bell
- Department of Medicine and Human Genetics, University of Chicago, Chicago, IL, USA
| | - Yasuhiko Iwamoto
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| | - Yasuko Uchigata
- Department of Medicine III and Diabetes Center, Tokyo Women's Medical University School of Medicine, Tokyo
| |
Collapse
|
48
|
Safe S, Jin UH, Hedrick E, Reeder A, Lee SO. Minireview: role of orphan nuclear receptors in cancer and potential as drug targets. Mol Endocrinol 2014; 28:157-172. [PMID: 24295738 PMCID: PMC3896638 DOI: 10.1210/me.2013-1291] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/21/2013] [Indexed: 01/03/2023] Open
Abstract
The nuclear orphan receptors for which endogenous ligands have not been identified include nuclear receptor (NR)0B1 (adrenal hypoplasia congenita critical region on chromosome X gene), NR0B2 (small heterodimer partner), NR1D1/2 (Rev-Erbα/β), NR2C1 (testicular receptor 2), NR2C2 (testicular receptor 4), NR2E1 (tailless), NR2E3 (photoreceptor-specific NR [PNR]), NR2F1 chicken ovalbumin upstream promoter transcription factor 1 (COUP-TFI), NR2F2 (COUP-TFII), NR2F6 (v-erbA-related protein), NR4A1 (Nur77), NR4A2 (Nurr1), NR4A3 (Nor1), and NR6A1 (GCNF). These receptors play essential roles in development, cellular homeostasis, and disease including cancer where over- or underexpression of some receptors has prognostic significance for patient survival. Results of receptor knockdown or overexpression in vivo and in cancer cell lines demonstrate that orphan receptors exhibit tumor-specific pro-oncogenic or tumor suppressor-like activity. For example, COUP-TFII expression is both a positive (ovarian) and negative (prostate and breast) prognostic factor for cancer patients; in contrast, the prognostic activity of adrenal hypoplasia congenita critical region on chromosome X gene for the same tumors is the inverse of COUP-TFII. Functional studies show that Nur77 is tumor suppressor like in acute leukemia, whereas silencing Nur77 in pancreatic, colon, lung, lymphoma, melanoma, cervical, ovarian, gastric, and some breast cancer cell lines induces one or more of several responses including growth inhibition and decreased survival, migration, and invasion. Although endogenous ligands for the orphan receptors have not been identified, there is increasing evidence that different structural classes of compounds activate, inactivate, and directly bind several orphan receptors. Thus, the screening and development of selective orphan receptor modulators will have important clinical applications as novel mechanism-based agents for treating cancer patients overexpressing one or more orphan receptors and also for combined drug therapies.
Collapse
Affiliation(s)
- Stephen Safe
- Department of Veterinary Physiology and Pharmacology (S.S., E.H., A.R.), Texas A&M University, College Station, Texas 77808; and Institute of Biosciences and Technology (S.S., U.-H.J., S.-O.L.), Texas A&M Health Science Center, Houston, Texas 77030
| | | | | | | | | |
Collapse
|
49
|
Smalling RV, Delker DA, Zhang Y, Nieto N, Mcguiness MS, Liu S, Friedman SL, Hagedorn CH, Wang L. Genome-wide transcriptome analysis identifies novel gene signatures implicated in human chronic liver disease. Am J Physiol Gastrointest Liver Physiol 2013; 305:G364-74. [PMID: 23812039 PMCID: PMC3761248 DOI: 10.1152/ajpgi.00077.2013] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The molecular mechanisms behind human liver disease progression to cirrhosis remain elusive. Nuclear receptor small heterodimer partner (SHP/Nr0b2) is a hepatic tumor suppressor and a critical regulator of liver function. SHP expression is diminished in human cirrhotic livers, suggesting a regulatory role in human liver diseases. The goal of this study was to identify novel SHP-regulated genes that are involved in the development and progression of chronic liver disease. To achieve this, we conducted the first comprehensive RNA sequencing (RNA-seq) analysis of Shp(-/-) mice, compared the results with human hepatitis C cirrhosis RNA-seq and nonalcoholic steatohepatitis (NASH) microarray datasets, and verified novel results in human liver biospecimens. This approach revealed new gene signatures associated with chronic liver disease and regulated by SHP. Several genes were selected for validation of physiological relevance based on their marked upregulation, novelty with regard to liver function, and involvement in gene pathways related to liver disease. These genes include peptidoglycan recognition protein 2, dual specific phosphatase-4, tetraspanin 4, thrombospondin 1, and SPARC-related modular calcium binding protein-2, which were validated by qPCR analysis of 126 human liver specimens, including steatosis, fibrosis, and NASH, alcohol and hepatitis C cirrhosis, and in mouse models of liver inflammation and injury. This RNA-seq analysis identifies new genes that are regulated by the nuclear receptor SHP and implicated in the molecular pathogenesis of human chronic liver diseases. The results provide valuable transcriptome information for characterizing mechanisms of these diseases.
Collapse
Affiliation(s)
- Rana V. Smalling
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Don A. Delker
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Yuxia Zhang
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Natalia Nieto
- 2Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| | - Michael S. Mcguiness
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Shuanghu Liu
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Scott L. Friedman
- 2Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, New York, New York
| | - Curt H. Hagedorn
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| | - Li Wang
- 1Department of Medicine and Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, Utah; and
| |
Collapse
|
50
|
Noh JR, Hwang JH, Kim YH, Kim KS, Gang GT, Kim SW, Kim DK, Shong M, Lee IK, Choi HS, Lee CH. The orphan nuclear receptor small heterodimer partner negatively regulates pancreatic beta cell survival and hyperglycemia in multiple low-dose streptozotocin-induced type 1 diabetic mice. Int J Biochem Cell Biol 2013; 45:1538-45. [DOI: 10.1016/j.biocel.2013.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 05/02/2013] [Accepted: 05/06/2013] [Indexed: 12/19/2022]
|