1
|
Ma Q, He X, Wang X, Zhao G, Zhang Y, Su C, Wei M, Zhang K, Liu M, Zhu Y, He J. PTPN14 aggravates neointimal hyperplasia via boosting PDGFRβ signaling in smooth muscle cells. Nat Commun 2024; 15:7398. [PMID: 39191789 PMCID: PMC11350182 DOI: 10.1038/s41467-024-51881-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 08/20/2024] [Indexed: 08/29/2024] Open
Abstract
Smooth muscle cell (SMC) phenotypic modulation, primarily driven by PDGFRβ signaling, is implicated in occlusive cardiovascular diseases. However, the promotive and restrictive regulation mechanism of PDGFRβ and the role of protein tyrosine phosphatase non-receptor type 14 (PTPN14) in neointimal hyperplasia remain unclear. Our study observes a marked upregulation of PTPN14 in SMCs during neointimal hyperplasia. PTPN14 overexpression exacerbates neointimal hyperplasia in a phosphatase activity-dependent manner, while SMC-specific deficiency of PTPN14 mitigates this process in mice. RNA-seq indicates that PTPN14 deficiency inhibits PDGFRβ signaling-induced SMC phenotypic modulation. Moreover, PTPN14 interacts with intracellular region of PDGFRβ and mediates its dephosphorylation on Y692 site. Phosphorylation of PDGFRβY692 negatively regulates PDGFRβ signaling activation. The levels of both PTPN14 and phospho-PDGFRβY692 are correlated with the degree of stenosis in human coronary arteries. Our findings suggest that PTPN14 serves as a critical modulator of SMCs, promoting neointimal hyperplasia. PDGFRβY692, dephosphorylated by PTPN14, acts as a self-inhibitory site for controlling PDGFRβ activation.
Collapse
MESH Headings
- Animals
- Humans
- Male
- Mice
- Coronary Vessels/pathology
- Coronary Vessels/metabolism
- Hyperplasia/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neointima/metabolism
- Neointima/pathology
- Phosphorylation
- Protein Tyrosine Phosphatases, Non-Receptor/metabolism
- Protein Tyrosine Phosphatases, Non-Receptor/genetics
- Receptor, Platelet-Derived Growth Factor beta/metabolism
- Receptor, Platelet-Derived Growth Factor beta/genetics
- Signal Transduction
Collapse
Affiliation(s)
- Qiannan Ma
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
- Department of Endocrinology and Metabolism, Tianjin Research Institute of Endocrinology, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xue He
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Xue Wang
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Guobing Zhao
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Yanhong Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China
| | - Chao Su
- Division of Cardiovascular Surgery, Cardiac and Vascular Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518040, China
| | - Minxin Wei
- Division of Cardiovascular Surgery, Cardiac and Vascular Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, 518040, China
| | - Kai Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Ming Liu
- Department of Endocrinology and Metabolism, Tianjin Research Institute of Endocrinology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Yi Zhu
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China.
- Department of Endocrinology and Metabolism, Tianjin Research Institute of Endocrinology, Tianjin Medical University General Hospital, Tianjin, 300052, China.
| | - Jinlong He
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, 300070, China.
| |
Collapse
|
2
|
Friedline RH, Noh HL, Suk S, Albusharif M, Dagdeviren S, Saengnipanthkul S, Kim B, Kim AM, Kim LH, Tauer LA, Baez Torres NM, Choi S, Kim BY, Rao SD, Kasina K, Sun C, Toles BJ, Zhou C, Li Z, Benoit VM, Patel PR, Zheng DXT, Inashima K, Beaverson A, Hu X, Tran DA, Muller W, Greiner DL, Mullen AC, Lee KW, Kim JK. IFNγ-IL12 axis regulates intercellular crosstalk in metabolic dysfunction-associated steatotic liver disease. Nat Commun 2024; 15:5506. [PMID: 38951527 PMCID: PMC11217362 DOI: 10.1038/s41467-024-49633-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/13/2024] [Indexed: 07/03/2024] Open
Abstract
Obesity is a major cause of metabolic dysfunction-associated steatohepatitis (MASH) and is characterized by inflammation and insulin resistance. Interferon-γ (IFNγ) is a pro-inflammatory cytokine elevated in obesity and modulating macrophage functions. Here, we show that male mice with loss of IFNγ signaling in myeloid cells (Lyz-IFNγR2-/-) are protected from diet-induced insulin resistance despite fatty liver. Obesity-mediated liver inflammation is also attenuated with reduced interleukin (IL)-12, a cytokine primarily released by macrophages, and IL-12 treatment in vivo causes insulin resistance by impairing hepatic insulin signaling. Following MASH diets, Lyz-IFNγR2-/- mice are rescued from developing liver fibrosis, which is associated with reduced fibroblast growth factor (FGF) 21 levels. These results indicate critical roles for IFNγ signaling in macrophages and their release of IL-12 in modulating obesity-mediated insulin resistance and fatty liver progression to MASH. In this work, we identify the IFNγ-IL12 axis in regulating intercellular crosstalk in the liver and as potential therapeutic targets to treat MASH.
Collapse
Affiliation(s)
- Randall H Friedline
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Hye Lim Noh
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Sujin Suk
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- WCU Biomodulation Major, Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Mahaa Albusharif
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Sezin Dagdeviren
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Suchaorn Saengnipanthkul
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Division of Nutrition, Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Bukyung Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kosin University College of Medicine, Busan, Republic of Korea
| | - Allison M Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Lauren H Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Lauren A Tauer
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Natalie M Baez Torres
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Stephanie Choi
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Bo-Yeon Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Suryateja D Rao
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Kaushal Kasina
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Cheng Sun
- Division of Gastroenterology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Benjamin J Toles
- Division of Gastroenterology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Chan Zhou
- Division of Biostatistics and Health Services Research, Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Zixiu Li
- Division of Biostatistics and Health Services Research, Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Vivian M Benoit
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Payal R Patel
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Doris X T Zheng
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Kunikazu Inashima
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Annika Beaverson
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Xiaodi Hu
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Duy A Tran
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Werner Muller
- Division of Infection, Immunity & Respiratory Medicine, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Dale L Greiner
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Alan C Mullen
- Division of Gastroenterology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Ki Won Lee
- WCU Biomodulation Major, Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- XO Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea
| | - Jason K Kim
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- WCU Biomodulation Major, Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea.
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
| |
Collapse
|
3
|
Kumar A, Laborit Labrada B, Lavallée-Bourget MH, Forest MP, Schwab M, Bellmann K, Houde V, Beauchemin N, Laplante M, Marette A. Regulation of PPARγ2 Stability and Activity by SHP-1. Mol Cell Biol 2024; 44:261-272. [PMID: 38828991 PMCID: PMC11253886 DOI: 10.1080/10985549.2024.2354959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 04/23/2024] [Indexed: 06/05/2024] Open
Abstract
The protein tyrosine phosphatase Src homology region 2 domain-containing phosphatase-1 (SHP-1) plays an important role in modulating glucose and lipid homeostasis. We previously suggested a potential role of SHP-1 in the regulation of peroxisome proliferator-activated receptor γ2 (PPARγ2) expression and activity but the mechanisms were unexplored. PPARγ2 is the master regulator of adipogenesis, but how its activity is regulated by tyrosine phosphorylation is largely unknown. Here, we found that SHP-1 binds to PPARγ2 primarily via its N-terminal SH2-domain. We confirmed the phosphorylation of PPARγ2 on tyrosine-residue 78 (Y78), which was reduced by SHP-1 in vitro resulting in decreased PPARγ2 stability. Loss of SHP-1 led to elevated, agonist-induced expression of the classical PPARγ2 targets FABP4 and CD36, concomitant with increased lipid content in cells expressing PPARγ2, an effect blunted by abrogation of PPARγ2 phosphorylation. Collectively, we discovered that SHP-1 affects the stability of PPARγ2 through dephosphorylation thereby influencing adipogenesis.
Collapse
Affiliation(s)
- Amit Kumar
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Beisy Laborit Labrada
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Marie-Hélène Lavallée-Bourget
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Marie-Pier Forest
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Michael Schwab
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Kerstin Bellmann
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Vanessa Houde
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
| | - Nicole Beauchemin
- Rosalind and Morris Goodman Cancer Research Centre, Departments of Oncology, Medicine and Biochemistry, McGill University, Montreal, QC, Canada
| | - Mathieu Laplante
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
- Centre de Recherche sur le Cancer, l’Université Laval, Québec, QC, Canada
| | - André Marette
- Centre de recherche de l‘Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Faculté de Médecine, Université Laval, Québec, QC, Canada
- Institute of Nutrition and Functional Foods, Laval University, Québec, QC, Canada
| |
Collapse
|
4
|
Kazek G, Głuch-Lutwin M, Mordyl B, Menaszek E, Kubacka M, Jurowska A, Cież D, Trzewik B, Szklarzewicz J, Papież MA. Vanadium Complexes with Thioanilide Derivatives of Amino Acids: Inhibition of Human Phosphatases and Specificity in Various Cell Models of Metabolic Disturbances. Pharmaceuticals (Basel) 2024; 17:229. [PMID: 38399444 PMCID: PMC10892041 DOI: 10.3390/ph17020229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
In the text, the synthesis and characteristics of the novel ONS-type vanadium (V) complexes with thioanilide derivatives of amino acids are described. They showed the inhibition of human protein tyrosine phosphatases (PTP1B, LAR, SHP1, and SHP2) in the submicromolar range, as well as the inhibition of non-tyrosine phosphatases (CDC25A and PPA2) similar to bis(maltolato)oxidovanadium(IV) (BMOV). The ONS complexes increased [14C]-deoxy-D-glucose transport into C2C12 myocytes, and one of them, VC070, also enhanced this transport in 3T3-L1 adipocytes. These complexes inhibited gluconeogenesis in hepatocytes HepG2, but none of them decreased lipid accumulation in the non-alcoholic fatty liver disease model using the same cells. Compared to the tested ONO-type vanadium complexes with 5-bromosalicylaldehyde and substituted benzhydrazides as Schiff base ligand components, the ONS complexes revealed stronger inhibition of protein tyrosine phosphatases, but the ONO complexes showed greater activity in the cell models in general. Moreover, the majority of the active complexes from both groups showed better effects than VOSO4 and BMOV. Complexes from both groups activated AKT and ERK signaling pathways in hepatocytes to a comparable extent. One of the ONO complexes, VC068, showed activity in all of the above models, including also glucose utilizatiand ONO Complexes are Inhibitors ofon in the myocytes and glucose transport in insulin-resistant hepatocytes. The discussion section explicates the results within the wider scope of the knowledge about vanadium complexes.
Collapse
Affiliation(s)
- Grzegorz Kazek
- Department of Pharmacological Screening, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Monika Głuch-Lutwin
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Barbara Mordyl
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Elżbieta Menaszek
- Department of Cytobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Monika Kubacka
- Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| | - Anna Jurowska
- Coordination Chemistry Group, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Dariusz Cież
- Department of Organic Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Bartosz Trzewik
- Department of Organic Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Janusz Szklarzewicz
- Coordination Chemistry Group, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Monika A Papież
- Department of Cytobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland
| |
Collapse
|
5
|
Shi X, Li X, He X, Zhang D, Quan C, Xiu Z, Dong Y. Chemical Epigenetic Regulation Secondary Metabolites Derived from Aspergillus sydowii DL1045 with Inhibitory Activities for Protein Tyrosine Phosphatases. Molecules 2024; 29:670. [PMID: 38338416 PMCID: PMC10856041 DOI: 10.3390/molecules29030670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Protein tyrosine phosphatases (PTPs) are ubiquitous in living organisms and are promising drug targets for cancer, diabetes/obesity, and autoimmune disorders. In this study, a histone deacetylase inhibitor called suberoylanilide hydroxamic acid (SAHA) was added to a culture of marine fungi (Aspergillus sydowii DL1045) to identify potential drug candidates related to PTP inhibition. Then, the profile of the induced metabolites was characterized using an integrated metabolomics strategy. In total, 46% of the total SMs were regulated secondary metabolites (SMs), among which 20 newly biosynthesized metabolites (10% of the total SMs) were identified only in chemical epigenetic regulation (CER) broth. One was identified as a novel compound, and fourteen compounds were identified from Aspergillus sydowii first. SAHA derivatives were also biotransformed by A. sydowii DL1045, and five of these derivatives were identified. Based on the bioassay, some of the newly synthesized metabolites exhibited inhibitory effects on PTPs. The novel compound sydowimide A (A11) inhibited Src homology region 2 domain-containing phosphatase-1 (SHP1), T-cell protein tyrosine phosphatase (TCPTP) and leukocyte common antigen (CD45), with IC50 values of 1.5, 2.4 and 18.83 μM, respectively. Diorcinol (A3) displayed the strongest inhibitory effect on SHP1, with an IC50 value of 0.96 μM. The structure-activity relationship analysis and docking studies of A3 analogs indicated that the substitution of the carboxyl group reduced the activity of A3. Research has demonstrated that CER positively impacts changes in the secondary metabolic patterns of A. sydowii DL1045. The compounds produced through this approach will provide valuable insights for the creation and advancement of novel drug candidates related to PTP inhibition.
Collapse
Affiliation(s)
- Xuan Shi
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Xia Li
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Xiaoshi He
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Danyang Zhang
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Chunshan Quan
- College of Life Science, Dalian Minzu University, Dalian 116600, China;
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Yuesheng Dong
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| |
Collapse
|
6
|
Hayes E, Winston N, Stocco C. Molecular crosstalk between insulin-like growth factors and follicle-stimulating hormone in the regulation of granulosa cell function. Reprod Med Biol 2024; 23:e12575. [PMID: 38571513 PMCID: PMC10988955 DOI: 10.1002/rmb2.12575] [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: 02/19/2024] [Revised: 03/11/2024] [Accepted: 03/20/2024] [Indexed: 04/05/2024] Open
Abstract
Background The last phase of folliculogenesis is driven by follicle-stimulating hormone (FSH) and locally produced insulin-like growth factors (IGFs), both essential for forming preovulatory follicles. Methods This review discusses the molecular crosstalk of the FSH and IGF signaling pathways in regulating follicular granulosa cells (GCs) during the antral-to-preovulatory phase. Main findings IGFs were considered co-gonadotropins since they amplify FSH actions in GCs. However, this view is not compatible with data showing that FSH requires IGFs to stimulate GCs, that FSH renders GCs sensitive to IGFs, and that FSH signaling interacts with factors downstream of AKT to stimulate GCs. New evidence suggests that FSH and IGF signaling pathways intersect at several levels to regulate gene expression and GC function. Conclusion FSH and locally produced IGFs form a positive feedback loop essential for preovulatory follicle formation in all species. Understanding the mechanisms by which FSH and IGFs interact to control GC function will help design new interventions to optimize follicle maturation, perfect treatment of ovulatory defects, improve in vitro fertilization, and develop new contraceptive approaches.
Collapse
Affiliation(s)
- Emily Hayes
- Department of Physiology and BiophysicsUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
| | - Nicola Winston
- Department of Obstetrics and GynecologyUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
| | - Carlos Stocco
- Department of Physiology and BiophysicsUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
- Department of Obstetrics and GynecologyUniversity of Illinois Chicago College of MedicineChicagoIllinoisUSA
| |
Collapse
|
7
|
Lizotte F, Rousseau M, Denhez B, Lévesque D, Guay A, Liu H, Moreau J, Higgins S, Sabbagh R, Susztak K, Boisvert FM, Côté AM, Geraldes P. Deletion of protein tyrosine phosphatase SHP-1 restores SUMOylation of podocin and reverses the progression of diabetic kidney disease. Kidney Int 2023; 104:787-802. [PMID: 37507049 DOI: 10.1016/j.kint.2023.06.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 06/03/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023]
Abstract
Both clinical and experimental data suggest that podocyte injury is involved in the onset and progression of diabetic kidney disease (DKD). Although the mechanisms underlying the development of podocyte loss are not completely understood, critical structural proteins such as podocin play a major role in podocyte survival and function. We have reported that the protein tyrosine phosphatase SHP-1 expression increased in podocytes of diabetic mice and glomeruli of patients with diabetes. However, the in vivo contribution of SHP-1 in podocytes is unknown. Conditional podocyte-specific SHP-1-deficient mice (Podo-SHP-1-/-) were generated to evaluate the impact of SHP-1 deletion at four weeks of age (early) prior to the onset of diabetes and after 20 weeks (late) of diabetes (DM; Ins2+/C96Y) on kidney function (albuminuria and glomerular filtration rate) and kidney pathology. Ablation of the SHP-1 gene specifically in podocytes prevented and even reversed the elevated albumin/creatinine ratio, glomerular filtration rate progression, mesangial cell expansion, glomerular hypertrophy, glomerular basement membrane thickening and podocyte foot process effacement induced by diabetes. Moreover, podocyte-specific deletion of SHP-1 at an early and late stage prevented diabetes-induced expression of collagen IV, fibronectin, transforming growth factor-β, transforming protein RhoA, and serine/threonine kinase ROCK1, whereas it restored nephrin, podocin and cation channel TRPC6 expression. Mass spectrometry analysis revealed that SHP-1 reduced SUMO2 post-translational modification of podocin while podocyte-specific deletion of SHP-1 preserved slit diaphragm protein complexes in the diabetic context. Thus, our data uncovered a new role of SHP-1 in the regulation of cytoskeleton dynamics and slit diaphragm protein expression/stability, and its inhibition preserved podocyte function preventing DKD progression.
Collapse
Affiliation(s)
- Farah Lizotte
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Marina Rousseau
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Benoit Denhez
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Dominique Lévesque
- Department of Immunology and Cell Biology, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Andréanne Guay
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - HongBo Liu
- Renal, Electrolyte, and Hypertension Division, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Penn/CHOP Kidney Innovation Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Department of Genetics Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Julie Moreau
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Sarah Higgins
- Division of Nephrology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Robert Sabbagh
- Department of Surgery, Université de Sherbrooke, Québec, Canada
| | - Katalin Susztak
- Renal, Electrolyte, and Hypertension Division, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Penn/CHOP Kidney Innovation Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Department of Genetics Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Anne Marie Côté
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada; Division of Nephrology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Pedro Geraldes
- Research Center of the Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, Québec, Canada; Division of Endocrinology, Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada.
| |
Collapse
|
8
|
Khandibharad S, Singh S. Immuno-metabolic signaling in leishmaniasis: insights gained from mathematical modeling. BIOINFORMATICS ADVANCES 2023; 3:vbad125. [PMID: 37799190 PMCID: PMC10548086 DOI: 10.1093/bioadv/vbad125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/27/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023]
Abstract
Motivation Leishmaniasis is a global concern especially in underdeveloped and developing subtropical and tropical regions. The extent of infectivity in host is majorly dependent on functional polarization of macrophages. Classically activated M1 macrophage can eliminate parasite through production of iNOS and alternatively activated M2 macrophages can promote parasite growth through by providing shelter and nutrients to parasite. The biological processes involved in immune signaling and metabolism of host and parasite might be responsible for deciding fate of parasite. Results Using systems biology approach, we constructed two mathematical models and inter-regulatory immune-metabolic networks of M1 and M2 state, through which we identified crucial components that are associated with these phenotypes. We also demonstrated how parasite may modulate M1 phenotype for its growth and proliferation and transition to M2 state. Through our previous findings as well as from recent findings we could identify SHP-1 as a key component in regulating the immune-metabolic characterization of M2 macrophage. By targeting SHP-1 at cellular level, it might be possible to modulate immuno-metabolic mechanism and thereby control parasite survival. Availability and implementation Mathematical modeling is implemented as a workflow and the models are deposited in BioModel database. FactoMineR is available at: https://github.com/cran/FactoMineR/tree/master.
Collapse
Affiliation(s)
- Shweta Khandibharad
- Systems Medicine Laboratory, National Centre for Cell Science, NCCS Complex, SPPU Campus, Pune 411007, India
| | - Shailza Singh
- Systems Medicine Laboratory, National Centre for Cell Science, NCCS Complex, SPPU Campus, Pune 411007, India
| |
Collapse
|
9
|
Kumar A, Schwab M, Laborit Labrada B, Silveira MAD, Goudreault M, Fournier É, Bellmann K, Beauchemin N, Gingras AC, Bilodeau S, Laplante M, Marette A. SHP-1 phosphatase acts as a coactivator of PCK1 transcription to control gluconeogenesis. J Biol Chem 2023; 299:105164. [PMID: 37595871 PMCID: PMC10504565 DOI: 10.1016/j.jbc.2023.105164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/20/2023] Open
Abstract
We previously reported that the protein-tyrosine phosphatase SHP-1 (PTPN6) negatively regulates insulin signaling, but its impact on hepatic glucose metabolism and systemic glucose control remains poorly understood. Here, we use co-immunoprecipitation assays, chromatin immunoprecipitation sequencing, in silico methods, and gluconeogenesis assay, and found a new mechanism whereby SHP-1 acts as a coactivator for transcription of the phosphoenolpyruvate carboxykinase 1 (PCK1) gene to increase liver gluconeogenesis. SHP-1 is recruited to the regulatory regions of the PCK1 gene and interacts with RNA polymerase II. The recruitment of SHP-1 to chromatin is dependent on its association with the transcription factor signal transducer and activator of transcription 5 (STAT5). Loss of SHP-1 as well as STAT5 decrease RNA polymerase II recruitment to the PCK1 promoter and consequently PCK1 mRNA levels leading to blunted gluconeogenesis. This work highlights a novel nuclear role of SHP-1 as a key transcriptional regulator of hepatic gluconeogenesis adding a new mechanism to the repertoire of SHP-1 functions in metabolic control.
Collapse
Affiliation(s)
- Amit Kumar
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada
| | - Michael Schwab
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada
| | - Beisy Laborit Labrada
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada
| | - Maruhen Amir Datsch Silveira
- Centre de Recherche du CHU de Québec - Université Laval, Axe Oncologie, Québec, Quebec, Canada; Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Département de biologie moléculaire, biochimie médicale et pathologie, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
| | - Marilyn Goudreault
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Quebec, Canada; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health System, Toronto, Ontario, Canada
| | - Éric Fournier
- Centre de Recherche du CHU de Québec - Université Laval, Axe Oncologie, Québec, Quebec, Canada; Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Département de biologie moléculaire, biochimie médicale et pathologie, Faculté de Médecine, Université Laval, Québec, Quebec, Canada; Centre de recherche en données massives de l'Université Laval, Québec, Quebec, Canada
| | - Kerstin Bellmann
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada
| | - Nicole Beauchemin
- Department of Oncology, Medicine and Biochemistry, Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Anne-Claude Gingras
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health System, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Steve Bilodeau
- Centre de Recherche du CHU de Québec - Université Laval, Axe Oncologie, Québec, Quebec, Canada; Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Département de biologie moléculaire, biochimie médicale et pathologie, Faculté de Médecine, Université Laval, Québec, Quebec, Canada; Centre de recherche en données massives de l'Université Laval, Québec, Quebec, Canada
| | - Mathieu Laplante
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada; Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada
| | - André Marette
- Faculté de Médecine, Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Quebec, Canada; Institute of Nutrition and Functional Foods, Laval University, Québec, Quebec, Canada.
| |
Collapse
|
10
|
Petrovic A, Igrec D, Rozac K, Bojanic K, Kuna L, Kolaric TO, Mihaljevic V, Sikora R, Smolic R, Glasnovic M, Wu GY, Smolic M. The Role of GLP1-RAs in Direct Modulation of Lipid Metabolism in Hepatic Tissue as Determined Using In Vitro Models of NAFLD. Curr Issues Mol Biol 2023; 45:4544-4556. [PMID: 37367037 DOI: 10.3390/cimb45060288] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Glucagon-like peptide 1 receptor agonists (GLP-1RAs) have been shown to improve glucose and lipid homeostasis, promote weight loss, and reduce cardiovascular risk factors. They are a promising therapeutic option for non-alcoholic fatty liver disease (NAFLD), the most common liver disease, associated with T2DM, obesity, and metabolic syndrome. GLP-1RAs have been approved for the treatment of T2DM and obesity, but not for NAFLD. Most recent clinical trials have suggested the importance of early pharmacologic intervention with GLP-1RAs in alleviating and limiting NAFLD, as well as highlighting the relative scarcity of in vitro studies on semaglutide, indicating the need for further research. However, extra-hepatic factors contribute to the GLP-1RA results of in vivo studies. Cell culture models of NAFLD can be helpful in eliminating extrahepatic effects on the alleviation of hepatic steatosis, modulation of lipid metabolism pathways, reduction of inflammation, and prevention of the progression of NAFLD to severe hepatic conditions. In this review article, we discuss the role of GLP-1 and GLP-1RA in the treatment of NAFLD using human hepatocyte models.
Collapse
Affiliation(s)
- Ana Petrovic
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Dunja Igrec
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Karla Rozac
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Kristina Bojanic
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
| | - Lucija Kuna
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Tea Omanovic Kolaric
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Vjera Mihaljevic
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Renata Sikora
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Health Center Osijek-Baranja County, 31000 Osijek, Croatia
| | - Robert Smolic
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Marija Glasnovic
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - George Y Wu
- Department of Medicine, Division of Gastrenterology/Hepatology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Martina Smolic
- Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| |
Collapse
|
11
|
Hong Y, Zhang Y, Zhao H, Chen H, Yu QQ, Cui H. The roles of lncRNA functions and regulatory mechanisms in the diagnosis and treatment of hepatocellular carcinoma. Front Cell Dev Biol 2022; 10:1051306. [PMID: 36467404 PMCID: PMC9716033 DOI: 10.3389/fcell.2022.1051306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/07/2022] [Indexed: 10/27/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most frequent and deadly type of liver cancer. While the underlying molecular mechanisms are poorly understood, it is documented that lncRNAs may play key roles. Many HCC-associated lncRNAs have been linked to HBV and HCV infection, mediating gene expression, cell growth, development, and death. Studying the regulatory mechanisms and biological functions of HCC-related lncRNAs will assist our understanding of HCC pathogenesis as well as its diagnosis and management. Here, we address the potential of dysregulated lncRNAs in HCC as diagnostic and therapeutic biomarkers, and we evaluate the oncogenic or tumor-suppressive properties of these lncRNAs.
Collapse
Affiliation(s)
- Yuling Hong
- School of Clinical Medicine, Jining Medical University, Jining, China
| | - Yunxing Zhang
- Jining First People’s Hospital, Jining Medical College, Jining, China
| | - Haibo Zhao
- Jining First People’s Hospital, Jining Medical College, Jining, China
| | - Hailing Chen
- School of Clinical Medicine, Jining Medical University, Jining, China
| | - Qing-Qing Yu
- Jining First People’s Hospital, Jining Medical College, Jining, China
| | - Hongxia Cui
- Jining First People’s Hospital, Jining Medical College, Jining, China
| |
Collapse
|
12
|
Tang P, Virtue S, Goie JYG, Png CW, Guo J, Li Y, Jiao H, Chua YL, Campbell M, Moreno-Navarrete JM, Shabbir A, Fernández-Real JM, Gasser S, Kemeny DM, Yang H, Vidal-Puig A, Zhang Y. Regulation of adipogenic differentiation and adipose tissue inflammation by interferon regulatory factor 3. Cell Death Differ 2021; 28:3022-3035. [PMID: 34091599 PMCID: PMC8563729 DOI: 10.1038/s41418-021-00798-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023] Open
Abstract
Dysfunction of adipocytes and adipose tissue is a primary defect in obesity and obesity-associated metabolic diseases. Interferon regulatory factor 3 (IRF3) has been implicated in adipogenesis. However, the role of IRF3 in obesity and obesity-associated disorders remains unclear. Here, we show that IRF3 expression in human adipose tissues is positively associated with insulin sensitivity and negatively associated with type 2 diabetes. In mouse pre-adipocytes, deficiency of IRF3 results in increased expression of PPARγ and PPARγ-mediated adipogenic genes, leading to increased adipogenesis and altered adipocyte functionality. The IRF3 knockout (KO) mice develop obesity, insulin resistance, glucose intolerance, and eventually type 2 diabetes with aging, which is associated with the development of white adipose tissue (WAT) inflammation. Increased macrophage accumulation with M1 phenotype which is due to the loss of IFNβ-mediated IL-10 expression is observed in WAT of the KO mice compared to that in wild-type mice. Bone-marrow reconstitution experiments demonstrate that the nonhematopoietic cells are the primary contributors to the development of obesity and both hematopoietic and nonhematopoietic cells contribute to the development of obesity-related complications in IRF3 KO mice. This study demonstrates that IRF3 regulates the biology of multiple cell types including adipocytes and macrophages to prevent the development of obesity and obesity-related complications and hence, could be a potential target for therapeutic interventions for the prevention and treatment of obesity-associated metabolic disorders.
Collapse
Affiliation(s)
- Peng Tang
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Sam Virtue
- Institute of Metabolic Science, Wellcome Trust-MRC MDU Metabolic Disease Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Jian Yi Gerald Goie
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Chin Wen Png
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Jing Guo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Ying Li
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Huipeng Jiao
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Yen Leong Chua
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Mark Campbell
- Institute of Metabolic Science, Wellcome Trust-MRC MDU Metabolic Disease Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - José Maria Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigacio Biomedica de Girona (IDIBGI), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn, CB06/03/010), Instituto de Salud Carlos III, and Department of Medical Sciences, Faculty of Medicine, Girona, Spain
| | - Asim Shabbir
- Department of Surgery, National University Hospital, Singapore, Singapore
| | - José-Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigacio Biomedica de Girona (IDIBGI), CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn, CB06/03/010), Instituto de Salud Carlos III, and Department of Medical Sciences, Faculty of Medicine, Girona, Spain
| | - Stephan Gasser
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - David Michael Kemeny
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Antonio Vidal-Puig
- Institute of Metabolic Science, Wellcome Trust-MRC MDU Metabolic Disease Unit, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
| | - Yongliang Zhang
- Department of Microbiology & Immunology, and NUSMED Immunology Translational Research Programme,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
13
|
Brahma MK, Gilglioni EH, Zhou L, Trépo E, Chen P, Gurzov EN. Oxidative stress in obesity-associated hepatocellular carcinoma: sources, signaling and therapeutic challenges. Oncogene 2021; 40:5155-5167. [PMID: 34290399 PMCID: PMC9277657 DOI: 10.1038/s41388-021-01950-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/01/2021] [Accepted: 07/08/2021] [Indexed: 02/06/2023]
Abstract
Obesity affects more than 650 million individuals worldwide and is a well-established risk factor for the development of hepatocellular carcinoma (HCC). Oxidative stress can be considered as a bona fide tumor promoter, contributing to the initiation and progression of liver cancer. Indeed, one of the key events involved in HCC progression is excessive levels of reactive oxygen species (ROS) resulting from the fatty acid influx and chronic inflammation. This review provides insights into the different intracellular sources of obesity-induced ROS and molecular mechanisms responsible for hepatic tumorigenesis. In addition, we highlight recent findings pointing to the role of the dysregulated activity of BCL-2 proteins and protein tyrosine phosphatases (PTPs) in the generation of hepatic oxidative stress and ROS-mediated dysfunctional signaling, respectively. Finally, we discuss the potential and challenges of novel nanotechnology strategies to prevent ROS formation in obesity-associated HCC.
Collapse
Affiliation(s)
- Manoja K Brahma
- Signal Transduction and Metabolism Laboratory, Laboratoire de Gastroentérologie Expérimental et Endotools, Université libre de Bruxelles, Brussels, Belgium
| | - Eduardo H Gilglioni
- Signal Transduction and Metabolism Laboratory, Laboratoire de Gastroentérologie Expérimental et Endotools, Université libre de Bruxelles, Brussels, Belgium
| | - Lang Zhou
- Materials Research and Education Center, Auburn University, Auburn, AL, 36849, United States
| | - Eric Trépo
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, C.U.B. Hôpital Erasme, Université libre de Bruxelles, Brussels, Belgium
- Laboratory of Experimental Gastroenterology, Université libre de Bruxelles, Brussels, Belgium
| | - Pengyu Chen
- Materials Research and Education Center, Auburn University, Auburn, AL, 36849, United States
| | - Esteban N Gurzov
- Signal Transduction and Metabolism Laboratory, Laboratoire de Gastroentérologie Expérimental et Endotools, Université libre de Bruxelles, Brussels, Belgium.
| |
Collapse
|
14
|
Sarkar A, Kim EY, Jang T, Hongdusit A, Kim H, Choi JM, Fox JM. Microbially Guided Discovery and Biosynthesis of Biologically Active Natural Products. ACS Synth Biol 2021; 10:1505-1519. [PMID: 33988973 DOI: 10.1021/acssynbio.1c00074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The design of small molecules that inhibit disease-relevant proteins represents a longstanding challenge of medicinal chemistry. Here, we describe an approach for encoding this challenge-the inhibition of a human drug target-into a microbial host and using it to guide the discovery and biosynthesis of targeted, biologically active natural products. This approach identified two previously unknown terpenoid inhibitors of protein tyrosine phosphatase 1B (PTP1B), an elusive therapeutic target for the treatment of diabetes and cancer. Both inhibitors appear to target an allosteric site, which confers selectivity, and can inhibit PTP1B in living cells. A screen of 24 uncharacterized terpene synthases from a pool of 4464 genes uncovered additional hits, demonstrating a scalable discovery approach, and the incorporation of different PTPs into the microbial host yielded alternative PTP-specific detection systems. Findings illustrate the potential for using microbes to discover and build natural products that exhibit precisely defined biochemical activities yet possess unanticipated structures and/or binding sites.
Collapse
Affiliation(s)
- Ankur Sarkar
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| | - Edward Y. Kim
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| | - Taehwan Jang
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Akarawin Hongdusit
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jeong-Mo Choi
- Department of Chemistry, Pusan National University, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Jerome M. Fox
- Department of Chemical and Biological Engineering, University of Colorado Boulder, 3415 Colorado Avenue, Boulder, Colorado 80303, United States
| |
Collapse
|
15
|
Wang YY, Gao B, Yang Y, Jia SB, Ma XP, Zhang MH, Wang LJ, Ma AQ, Zhang QN. Histone deacetylase 3 suppresses the expression of SHP-1 via deacetylation of DNMT1 to promote heart failure. Life Sci 2021; 292:119552. [PMID: 33932446 DOI: 10.1016/j.lfs.2021.119552] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
AIMS Heart failure (HF) is a progressive disease with recurrent hospitalizations and high mortality. However, the mechanisms underlying HF remain unclear. The present study aimed to explore the regulatory mechanism of histone deacetylase 3 (HDAC3) and DNA methyltransferase 1 (DNMT1)/Src homology domain 2-containing tyrosine phosphatase-1 (SHP-1) axis in HF. METHODS The HF rat models and hypertrophy cell models were established. The characteristic parameters of the heart were detected by echocardiography. A multichannel physiological signal acquisition system was used to detect the hemodynamic parameters. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression of HDAC3, DNMT1, and SHP-1 mRNAs, while Western blot was applied to analyze the expression of proteins. Masson staining was used to analyze the degree of collagen fiber infiltration. TdT-mediated DUTP nick end labeling (TUNEL) staining was performed to analyze the apoptosis of myocardial tissue cells. Co-immunoprecipitation (co-IP) was conducted to study the interaction between HDAC3 and DNMT1. Flow cytometry was used to analyze the apoptosis. KEY FINDINGS HDAC3 and DNMT1 were highly expressed in HF rat and hypertrophy cell models. HDAC3 modified DNMT1 through deacetylation to inhibit ubiquitination-mediated degradation, which promoted the expression of DNMT1. DNMT1 inhibited SHP-1 expression via methylation in the promoter region. In summary, HDAC3 modified DNMT1 by deacetylation to suppress SHP-1 expression, which in turn led to the development of cardiomyocyte hypertrophy-induced HF. SIGNIFICANCE This study provided potential therapeutic targets for HF treatment.
Collapse
Affiliation(s)
- Yi-Yong Wang
- Department of Cardiovascular Medicine, General Hospital of Ningxia Medical University, China; Department of Cardiovascular Internal Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Bin Gao
- Department of Cardiology, Zhongwei City People Hospital, China
| | - Yong Yang
- Department of Cardiovascular Internal Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Shao-Bin Jia
- Department of Cardiovascular Medicine, General Hospital of Ningxia Medical University, China
| | - Xue-Ping Ma
- Department of Cardiovascular Medicine, General Hospital of Ningxia Medical University, China
| | - Ming-Hao Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China; School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| | - Li-Juan Wang
- Department of Cardiovascular Medicine, The Second People's Hospital of Yinchuan City, China
| | - Ai-Qun Ma
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, China; Key Laboratory of Molecular Cardiology, Shaanxi Province, China; Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, China.
| | - Qin-Ning Zhang
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, China
| |
Collapse
|
16
|
Di YQ, Zhao YM, Jin KY, Zhao XF. Subunit P60 of phosphatidylinositol 3-kinase promotes cell proliferation or apoptosis depending on its phosphorylation status. PLoS Genet 2021; 17:e1009514. [PMID: 33901186 PMCID: PMC8075199 DOI: 10.1371/journal.pgen.1009514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/28/2021] [Indexed: 11/25/2022] Open
Abstract
The regulatory subunits (P60 in insects, P85 in mammals) determine the activation of the catalytic subunits P110 in phosphatidylinositol 3-kinases (PI3Ks) in the insulin pathway for cell proliferation and body growth. However, the regulatory subunits also promote apoptosis via an unclear regulatory mechanism. Using Helicoverpa armigera, an agricultural pest, we showed that H. armigera P60 (HaP60) was phosphorylated under insulin-like peptides (ILPs) regulation at larval growth stages and played roles in the insulin/ insulin-like growth factor (IGF) signaling (IIS) to determine HaP110 phosphorylation and cell membrane translocation; whereas, HaP60 was dephosphorylated and its expression increased under steroid hormone 20-hydroxyecdysone (20E) regulation during metamorphosis. Protein tyrosine phosphatase non-receptor type 6 (HaPTPN6, also named tyrosine-protein phosphatase corkscrew-like isoform X1 in the genome) was upregulated by 20E to dephosphorylate HaP60 and HaP110. 20E blocked HaP60 and HaP110 translocation to the cell membrane and reduced their interaction. The phosphorylated HaP60 mediated a cascade of protein phosphorylation and forkhead box protein O (HaFOXO) cytosol localization in the IIS to promote cell proliferation. However, 20E, via G protein-coupled-receptor-, ecdysone receptor-, and HaFOXO signaling axis, upregulated HaP60 expression, and the non-phosphorylated HaP60 interacted with phosphatase and tensin homolog (HaPTEN) to induce apoptosis. RNA interference-mediated knockdown of HaP60 and HaP110 in larvae repressed larval growth and apoptosis. Thus, HaP60 plays dual functions to promote cell proliferation and apoptosis by changing its phosphorylation status under ILPs and 20E regulation, respectively. The regulatory subunits of phosphatidylinositol 3-kinases (PI3Ks) play very important roles in various pathways by promoting cell proliferation or apoptosis. However, the upstream regulatory mechanism of their opposite functions is unclear. Using a seriously agricultural pest Helicoverpa armigera as a model, we show that ILPs induce HaP60 phosphorylation to increase HaP110 phosphorylation and cell membrane location to promote cell proliferation. 20E promotes HaP60 and HaP110 dephosphorylation that resulted in the cytosol localization and inhibition of PI3K activity. Moreover, 20E elevates HaP60 expression to promote apoptosis. Our study revealed that HaP60 plays dual functions to regulate cell proliferation and apoptosis by changing its phosphorylated status.
Collapse
Affiliation(s)
- Yu-Qin Di
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Yu-Meng Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Ke-Yan Jin
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Xiao-Fan Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
- * E-mail: .
| |
Collapse
|
17
|
Sun Y, Liu WC, Shi X, Zheng HZ, Zheng ZH, Lu XH, Xing Y, Ji K, Liu M, Dong YS. Inducing secondary metabolite production of Aspergillus sydowii through microbial co-culture with Bacillus subtilis. Microb Cell Fact 2021; 20:42. [PMID: 33579268 PMCID: PMC7881642 DOI: 10.1186/s12934-021-01527-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/22/2021] [Indexed: 01/25/2023] Open
Abstract
Background The co-culture strategy which mimics natural ecology by constructing an artificial microbial community is a useful tool to activate the biosynthetic gene clusters to generate new metabolites. However, the conventional method to study the co-culture is to isolate and purify compounds separated by HPLC, which is inefficient and time-consuming. Furthermore, the overall changes in the metabolite profile cannot be well characterized. Results A new approach which integrates computational programs, MS-DIAL, MS-FINDER and web-based tools including GNPS and MetaboAnalyst, was developed to analyze and identify the metabolites of the co-culture of Aspergillus sydowii and Bacillus subtilis. A total of 25 newly biosynthesized metabolites were detected only in co-culture. The structures of the newly synthesized metabolites were elucidated, four of which were identified as novel compounds by the new approach. The accuracy of the new approach was confirmed by purification and NMR data analysis of 7 newly biosynthesized metabolites. The bioassay of newly synthesized metabolites showed that four of the compounds exhibited different degrees of PTP1b inhibitory activity, and compound N2 had the strongest inhibition activity with an IC50 value of 7.967 μM. Conclusions Co-culture led to global changes of the metabolite profile and is an effective way to induce the biosynthesis of novel natural products. The new approach in this study is one of the effective and relatively accurate methods to characterize the changes of metabolite profiles and to identify novel compounds in co-culture systems.
Collapse
Affiliation(s)
- Yu Sun
- School of Bioengineering, Dalian University of Technology, DalianLiaoning, 116024, China
| | - Wen-Cai Liu
- Shandong New Time Pharmaceutical Co., Ltd, Shandong, 255000, China
| | - Xuan Shi
- School of Bioengineering, Dalian University of Technology, DalianLiaoning, 116024, China
| | - Hai-Zhou Zheng
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation and National Microbial Medicine Engineering and Research Center, Shijiazhuang, 050015, Hebei, China
| | - Zhi-Hui Zheng
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation and National Microbial Medicine Engineering and Research Center, Shijiazhuang, 050015, Hebei, China
| | - Xin-Hua Lu
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation and National Microbial Medicine Engineering and Research Center, Shijiazhuang, 050015, Hebei, China
| | - Yan Xing
- School of Bioengineering, Dalian University of Technology, DalianLiaoning, 116024, China
| | - Kai Ji
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Mei Liu
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China. .,University of Chinese Academy of Sciences, Beijing, 101408, China.
| | - Yue-Sheng Dong
- School of Bioengineering, Dalian University of Technology, DalianLiaoning, 116024, China.
| |
Collapse
|
18
|
Lu J, Dumitrascu B, McDowell IC, Jo B, Barrera A, Hong LK, Leichter SM, Reddy TE, Engelhardt BE. Causal network inference from gene transcriptional time-series response to glucocorticoids. PLoS Comput Biol 2021; 17:e1008223. [PMID: 33513136 PMCID: PMC7875426 DOI: 10.1371/journal.pcbi.1008223] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 02/10/2021] [Accepted: 08/07/2020] [Indexed: 11/19/2022] Open
Abstract
Gene regulatory network inference is essential to uncover complex relationships among gene pathways and inform downstream experiments, ultimately enabling regulatory network re-engineering. Network inference from transcriptional time-series data requires accurate, interpretable, and efficient determination of causal relationships among thousands of genes. Here, we develop Bootstrap Elastic net regression from Time Series (BETS), a statistical framework based on Granger causality for the recovery of a directed gene network from transcriptional time-series data. BETS uses elastic net regression and stability selection from bootstrapped samples to infer causal relationships among genes. BETS is highly parallelized, enabling efficient analysis of large transcriptional data sets. We show competitive accuracy on a community benchmark, the DREAM4 100-gene network inference challenge, where BETS is one of the fastest among methods of similar performance and additionally infers whether causal effects are activating or inhibitory. We apply BETS to transcriptional time-series data of differentially-expressed genes from A549 cells exposed to glucocorticoids over a period of 12 hours. We identify a network of 2768 genes and 31,945 directed edges (FDR ≤ 0.2). We validate inferred causal network edges using two external data sources: Overexpression experiments on the same glucocorticoid system, and genetic variants associated with inferred edges in primary lung tissue in the Genotype-Tissue Expression (GTEx) v6 project. BETS is available as an open source software package at https://github.com/lujonathanh/BETS.
Collapse
Affiliation(s)
- Jonathan Lu
- Department of Computer Science, Princeton University, Princeton, New Jersey, United States of America
| | - Bianca Dumitrascu
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America
| | - Ian C. McDowell
- Element Genomics, A UCB Company, Durham, North Carolina, United States of America
| | - Brian Jo
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America
| | - Alejandro Barrera
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Linda K. Hong
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
| | - Sarah M. Leichter
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, United States of America
| | - Timothy E. Reddy
- Department of Genome Sciences, Duke University, Durham, North Carolina, United States of America
| | - Barbara E. Engelhardt
- Department of Computer Science, Princeton University, Princeton, New Jersey, United States of America
- Center for Statistics and Machine Learning, Princeton University, Princeton, New Jersey, United States of America
| |
Collapse
|
19
|
Abstract
ABSTRACT Host cells recognize molecules that signal danger using pattern recognition receptors (PRRs). Toll-like receptors (TLRs) are the most studied class of PRRs and detect pathogen-associated molecular patterns and danger-associated molecular patterns. Cellular TLR activation and signal transduction can therefore contain, combat, and clear danger by enabling appropriate gene transcription. Here, we review the expression, regulation, and function of different TLRs, with an emphasis on TLR-4, and how TLR adaptor protein binding directs intracellular signaling resulting in activation or termination of an innate immune response. Finally, we highlight the recent progress of research on the involvement of S100 proteins as ligands for TLR-4 in inflammatory disease.
Collapse
|
20
|
Lin L, Jian J, Song CY, Chen F, Ding K, Xie WF, Hu PF. SHP-1 ameliorates nonalcoholic steatohepatitis by inhibiting proinflammatory cytokine production. FEBS Lett 2020; 594:2965-2974. [PMID: 32619269 DOI: 10.1002/1873-3468.13879] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022]
Abstract
Inflammation is the main contributor for the pathogenesis of nonalcoholic steatohepatitis (NASH). Src homology region 2 domain-containing phosphatase 1 (SHP-1, also known as PTPN6) is regarded as a negative regulator of inflammation, but its role in NASH remains unknown. Here, hepatocyte-specific Ptpn6 knockout mice (Ptpn6HKO ) and adenovirus vector-mediated ectopic expression of SHP-1 (AdSHP1) were used to evaluate the role of SHP-1 in a methionine- and choline-deficient diet-induced NASH model. Compared with the control littermates, Ptpn6HKO mice show exacerbated hepatic steatosis, inflammation, and fibrosis. Additionally, administration of AdSHP1 significantly ameliorates steatohepatitis and inhibits the expression of proinflammatory cytokines, including transforming growth factor-β, interleukin-6, and tumor necrosis factor-α. Our data indicate that SHP-1 could be a potential therapeutic target for NASH.
Collapse
Affiliation(s)
- Lin Lin
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Jie Jian
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chun-Yan Song
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Fei Chen
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Kai Ding
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Fen Xie
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ping-Fang Hu
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| |
Collapse
|
21
|
Correlation between SHP-1 and carotid plaque vulnerability in humans. Cardiovasc Pathol 2020; 49:107258. [PMID: 32674045 DOI: 10.1016/j.carpath.2020.107258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Advanced atherosclerotic plaques tend to indicate an increased risk of cerebral ischemic events. SH2 domain-containing protein tyrosine phosphatase 1 (SHP-1) is a class I classical nonreceptor protein tyrosine phosphatase associated with plaque stability, as shown by analysis of a Gene Expression Omnibus (GEO) dataset showing differences in mRNA levels. However, the correlation between SHP-1 and human carotid plaque stability at the protein level remains unclear. METHODS AND RESULTS Thirty-nine carotid plaque tissue samples were acquired from 39 carotid artery stenosis patients after carotid endarterectomy. Hematoxylin and eosin, Masson trichrome, and CD68 staining was performed for pathological characterization, and immunohistochemical staining for SHP-1 was carried out. Within stable and unstable plaques, SHP-1 mainly accumulated in the necrotic area, plaque shoulder, and fibrous cap, similar to the distribution of CD68. A quantitative analysis of SHP-1 was carried out. The relative SHP-1-positive cell area was higher in the vulnerable group than in the stable group (P < .001). The number of symptomatic patients in the vulnerable group was no greater than that in the stable group (P = .098). Moreover, the integrated optical density (IOD)/area of SHP-1 was significantly higher in the vulnerable group than in the stable group (P < .001). Besides, SHP-1 colocalized with CD68 and vascular cell adhesion protein 1(VCAM-1). CONCLUSIONS We demonstrate that SHP-1 expression increases during carotid atherosclerotic plaque progression. The protein expression of SHP-1 was related to an increase in plaque instability in not only symptomatic but also asymptomatic patients with carotid artery stenosis. SHP-1 may play a role in atherosclerosis progression by macrophage polarization-mediated efferocytosis. Furthermore, SHP-1 may become a promising biomarker for plaque vulnerability in the future.
Collapse
|
22
|
Kopylov AT, Kaysheva AL, Papysheva O, Gribova I, Kotaysch G, Kharitonova L, Mayatskaya T, Krasheninnikova A, Morozov SG. Association of Proteins Modulating Immune Response and Insulin Clearance During Gestation with Antenatal Complications in Patients with Gestational or Type 2 Diabetes Mellitus. Cells 2020; 9:cells9041032. [PMID: 32326243 PMCID: PMC7226479 DOI: 10.3390/cells9041032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/16/2020] [Accepted: 04/19/2020] [Indexed: 12/13/2022] Open
Abstract
Background: The purpose of the study is to establish and quantitatively assess protein markers and their combination in association with insulin uptake that may be have value for early prospective recognition of diabetic fetopathy (DF) as a complication in patients with diabetes mellitus during gestation. Methods: Proteomic surveying and accurate quantitative measurement of selected proteins from plasma samples collected from the patients with gestational diabetes mellitus (GDM) and type 2 diabetes mellitus (T2DM) who gave birth of either healthy or affected by maternal diabetes newborns was performed using mass spectrometry. Results: We determined and quantitatively measured several proteins, including CRP, CEACAM1, CNDP1 and Ig-family that were significantly differed in patients that gave birth of newborns with signs of DF. We found that patients with newborns associated with DF are characterized by significantly decreased CEACAM1 (113.18 ± 16.23 ng/mL and 81.09 ± 10.54 ng/mL in GDM and T2DM, p < 0.005) in contrast to control group (515.6 ± 72.14 ng/mL, p < 0.005). On the contrary, the concentration of CNDP1 was increased in DF-associated groups and attained 49.3 ± 5.18 ng/mL and 37.7 ± 3.34 ng/mL (p < 0.005) in GDM and T2DM groups, respectively. Among other proteins, dramatically decreased concentration of IgG4 and IgA2 subclasses of immunoglobulins were noticed. Conclusion: The combination of the measured markers may assist (AUC = 0.893 (CI 95%, 0.785–0.980) in establishing the clinical finding of the developing DF especially in patients with GDM who are at the highest risk of chronic insulin resistance.
Collapse
Affiliation(s)
- Arthur T. Kopylov
- Institute of General Pathology and Pathophysiology, Department of Pathology, 125315 Moscow, Russia; (A.K.); (S.G.M.)
- Institute of Biomedical Chemistry, Department of Proteomic Researches, 119121 Moscow, Russia;
- Correspondence: ; Tel.: +7-926-185-4049
| | - Anna L. Kaysheva
- Institute of Biomedical Chemistry, Department of Proteomic Researches, 119121 Moscow, Russia;
| | - Olga Papysheva
- Sergey S. Yudin 7th State Clinical Hospital, Perinatal Center, 115446 Moscow, Russia;
| | - Iveta Gribova
- Nikolay E. Bauman 29th State Clinical Hospital, 110020 Moscow, Russia; (I.G.); (G.K.)
- “Biopharm-Test” Limited Liability Company, 121170 Moscow, Russia
| | - Galina Kotaysch
- Nikolay E. Bauman 29th State Clinical Hospital, 110020 Moscow, Russia; (I.G.); (G.K.)
| | - Lubov Kharitonova
- Nikolay I. Pirogov Medical University, 117997 Moscow, Russia; (L.K.); (T.M.)
| | - Tatiana Mayatskaya
- Nikolay I. Pirogov Medical University, 117997 Moscow, Russia; (L.K.); (T.M.)
| | - Anna Krasheninnikova
- Institute of General Pathology and Pathophysiology, Department of Pathology, 125315 Moscow, Russia; (A.K.); (S.G.M.)
| | - Sergey G. Morozov
- Institute of General Pathology and Pathophysiology, Department of Pathology, 125315 Moscow, Russia; (A.K.); (S.G.M.)
- Nikolay E. Bauman 29th State Clinical Hospital, 110020 Moscow, Russia; (I.G.); (G.K.)
| |
Collapse
|
23
|
Pan Y, Yu C, Huang J, Rong Y, Chen J, Chen M. Bioinformatics analysis of vascular RNA-seq data revealed hub genes and pathways in a novel Tibetan minipig atherosclerosis model induced by a high fat/cholesterol diet. Lipids Health Dis 2020; 19:54. [PMID: 32213192 PMCID: PMC7098151 DOI: 10.1186/s12944-020-01222-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 03/03/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Atherosclerosis is a major contributor to cardiovascular events, however, its molecular mechanism remains poorly known. Animal models of atherosclerosis can be a valuable tool to provide insights into the etiology, pathophysiology, and complications of atherosclerosis. In particular, Tibetan minipigs are a feasible model for studying diet-related metabolic and atherosclerotic diseases. METHODS We used vascular transcriptomics to identify differentially expressed genes (DEGs) in high fat/cholesterol (HFC) diet-fed Tibetan minipig atherosclerosis models, analyzed the DEGs gene ontology (GO) terms, pathways and protein-protein interactions (PPI) networks, and identified hub genes and key modules using molecular complex detection (MCODE), Centiscape and CytoHubba plugin. The identified genes were validated using the human carotid atherosclerosis database (GSEA 43292) and RT-PCR methods. RESULTS Our results showed that minipigs displayed obvious dyslipidemia, oxidative stress, inflammatory response, atherosclerotic plaques, as well as increased low-density lipoprotein (LDL) and leukocyte recruitment after 24 weeks of HFC diet feeding compared to those under a regular diet. Our RNA-seq results revealed 1716 DEGs in the atherosclerotic/NC group, of which 1468 genes were up-regulated and 248 genes were down-regulated. Functional enrichment analysis of DEGs showed that the HFC diet-induced changes are related to vascular immune-inflammatory responses, lipid metabolism and muscle contraction, indicating that hypercholesterolemia caused by HFC diet can activate innate and adaptive immune responses to drive atherosclerosis development. Furthermore, we identified four modules from the major PPI network, which are implicated in cell chemotaxis, myeloid leukocyte activation, cytokine production, and lymphocyte activation. Fifteen hub genes were discovered, including TNF, PTPRC, ITGB2, ITGAM, VCAM1, CXCR4, TYROBP, TLR4, LCP2, C5AR1, CD86, MMP9, PTPN6, C3, and CXCL10, as well as two transcription factors (TF), i.e. NF-ĸB1 and SPI1. These results are consistent with the expression patterns in human carotid plaque and were validated by RT-PCR. CONCLUSIONS The identified DEGs and their enriched pathways provide references for the development and progression mechanism of Tibetan minipig atherosclerosis model induced by the HFC diet.
Collapse
Affiliation(s)
- Yongming Pan
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China
| | - Chen Yu
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China
| | - Junjie Huang
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China
| | - Yili Rong
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China
| | - Jiaojiao Chen
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China
| | - Minli Chen
- Comparative Medical Research Institute, Experimental Animal Research Center, Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, No. 548 Binwen Road, Binjiang District, Hangzhou, 310053, China.
| |
Collapse
|
24
|
Ets-2 deletion in myeloid cells attenuates IL-1α-mediated inflammatory disease caused by a Ptpn6 point mutation. Cell Mol Immunol 2020; 18:1798-1808. [PMID: 32203187 DOI: 10.1038/s41423-020-0398-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/26/2020] [Indexed: 11/08/2022] Open
Abstract
The SHP-1 protein encoded by the Ptpn6 gene has been extensively studied in hematopoietic cells in the context of inflammation. A point mutation in this gene (Ptpn6spin) causes spontaneous inflammation in mice, which has a striking similarity to neutrophilic dermatoses in humans. Recent findings highlighted the role of signaling adapters and kinases in promoting inflammation in Ptpn6spin mice; however, the underlying transcriptional regulation is poorly understood. Here, we report that SYK is important for driving neutrophil infiltration and initiating wound healing responses in Ptpn6spin mice. Moreover, we found that deletion of the transcription factor Ets2 in myeloid cells ameliorates cutaneous inflammatory disease in Ptpn6spin mice through transcriptional regulation of its target inflammatory genes. Furthermore, Ets-2 drives IL-1α-mediated inflammatory signaling in neutrophils of Ptpn6spin mice. Overall, in addition to its well-known role in driving inflammation in cancer, Ets-2 plays a major role in regulating IL-1α-driven Ptpn6spin-mediated neutrophilic dermatoses. Model for the role of ETS-2 in neutrophilic inflammation in Ptpn6spin mice. Mutation of the Ptpn6 gene results in SYK phosphorylation which then sequentially activates MAPK signaling pathways and activation of ETS-2. This leads to activation of ETS-2 target genes that contribute to neutrophil migration and inflammation. When Ets2 is deleted in Ptpn6spin mice, the expression of these target genes is reduced, leading to the reduced pathology in neutrophilic dermatoses.
Collapse
|
25
|
Najjar SM, Perdomo G. Hepatic Insulin Clearance: Mechanism and Physiology. Physiology (Bethesda) 2019; 34:198-215. [PMID: 30968756 DOI: 10.1152/physiol.00048.2018] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Upon its secretion from pancreatic β-cells, insulin reaches the liver through the portal circulation to exert its action and eventually undergo clearance in the hepatocytes. In addition to insulin secretion, hepatic insulin clearance regulates the homeostatic level of insulin that is required to reach peripheral insulin target tissues to elicit proper insulin action. Receptor-mediated insulin uptake followed by its degradation constitutes the basic mechanism of insulin clearance. Upon its phosphorylation by the insulin receptor tyrosine kinase, carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) takes part in the insulin-insulin receptor complex to increase the rate of its endocytosis and targeting to the degradation pathways. This review summarizes how this process is regulated and how it is associated with insulin-degrading enzyme in the liver. It also discusses the physiological implications of impaired hepatic insulin clearance: Whereas reduced insulin clearance cooperates with increased insulin secretion to compensate for insulin resistance, it can also cause hepatic insulin resistance. Because chronic hyperinsulinemia stimulates hepatic de novo lipogenesis, impaired insulin clearance also causes hepatic steatosis. Thus impaired insulin clearance can underlie the link between hepatic insulin resistance and hepatic steatosis. Delineating these regulatory pathways should lead to building more effective therapeutic strategies against metabolic syndrome.
Collapse
Affiliation(s)
- Sonia M Najjar
- Department of Biomedical Sciences, Ohio University , Athens, Ohio.,Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University , Athens, Ohio
| | - Germán Perdomo
- Departamento de Ciencias de la Salud, Universidad de Burgos , Burgos , Spain
| |
Collapse
|
26
|
Sharma Y, Ahmad A, Yavvari PS, Kumar Muwal S, Bajaj A, Khan F. Targeted SHP-1 Silencing Modulates the Macrophage Phenotype, Leading to Metabolic Improvement in Dietary Obese Mice. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 16:626-636. [PMID: 31108319 PMCID: PMC6526246 DOI: 10.1016/j.omtn.2019.04.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 12/18/2022]
Abstract
Chronic over-nutrition promotes adipocyte hypertrophy that creates inflammatory milieu leading to macrophage infiltration and their phenotypic switching during obesity. The SH2 domain-containing protein tyrosine phosphatase 1 (SHP-1) has been identified as an important player in inflammatory diseases involving macrophages. However, the role of SHP-1 in modulating the macrophage phenotype has not been elucidated yet. In the present work, we show that adipose tissue macrophage (ATM)-specific deletion of SHP-1 using glucan particle-loaded siRNA improves the metabolic phenotype in dietary obese insulin-resistant mice. The molecular mechanism involves AT remodeling via reducing crown-like structure formation and balancing the pro-inflammatory (M1) and anti-inflammatory macrophage (M2) population. Therefore, targeting ATM-specific SHP-1 using glucan-particle-loaded SHP-1 antagonists could be of immense therapeutic use for the treatment of obesity-associated insulin resistance.
Collapse
Affiliation(s)
- Yadhu Sharma
- Department of Biochemistry, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Altaf Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh, Uttar Pradesh 202001, India
| | | | - Sandeep Kumar Muwal
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre of Biotechnology, Faridabad, Haryana 121001, India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre of Biotechnology, Faridabad, Haryana 121001, India
| | - Farah Khan
- Department of Biochemistry, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India.
| |
Collapse
|
27
|
Horst AK, Najjar SM, Wagener C, Tiegs G. CEACAM1 in Liver Injury, Metabolic and Immune Regulation. Int J Mol Sci 2018; 19:ijms19103110. [PMID: 30314283 PMCID: PMC6213298 DOI: 10.3390/ijms19103110] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/02/2018] [Accepted: 10/04/2018] [Indexed: 02/06/2023] Open
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is a transmembrane glycoprotein that is expressed on epithelial, endothelial and immune cells. CEACAM1 is a differentiation antigen involved in the maintenance of epithelial polarity that is induced during hepatocyte differentiation and liver regeneration. CEACAM1 regulates insulin sensitivity by promoting hepatic insulin clearance, and controls liver tolerance and mucosal immunity. Obese insulin-resistant humans with non-alcoholic fatty liver disease manifest loss of hepatic CEACAM1. In mice, deletion or functional inactivation of CEACAM1 impairs insulin clearance and compromises metabolic homeostasis which initiates the development of obesity and hepatic steatosis and fibrosis with other features of non-alcoholic steatohepatitis, and adipogenesis in white adipose depot. This is followed by inflammation and endothelial and cardiovascular dysfunctions. In obstructive and inflammatory liver diseases, soluble CEACAM1 is shed into human bile where it can serve as an indicator of liver disease. On immune cells, CEACAM1 acts as an immune checkpoint regulator, and deletion of Ceacam1 gene in mice causes exacerbation of inflammation and hyperactivation of myeloid cells and lymphocytes. Hence, hepatic CEACAM1 resides at the central hub of immune and metabolic homeostasis in both humans and mice. This review focuses on the regulatory role of CEACAM1 in liver and biliary tract architecture in health and disease, and on its metabolic role and function as an immune checkpoint regulator of hepatic inflammation.
Collapse
Affiliation(s)
- Andrea Kristina Horst
- Institute of Experimental Immunology and Hepatology, Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany.
| | - Sonia M Najjar
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Irvine Hall, 1 Ohio University, Athens, OH 45701-2979, USA.
- The Diabetes Institute, Heritage College of Osteopathic Medicine, Irvine Hall, 1 Ohio University, Athens, OH 45701-2979, USA.
| | - Christoph Wagener
- University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany.
| | - Gisa Tiegs
- Institute of Experimental Immunology and Hepatology, Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20251 Hamburg, Germany.
| |
Collapse
|
28
|
Boutchueng-Djidjou M, Belleau P, Bilodeau N, Fortier S, Bourassa S, Droit A, Elowe S, Faure RL. A type 2 diabetes disease module with a high collective influence for Cdk2 and PTPLAD1 is localized in endosomes. PLoS One 2018; 13:e0205180. [PMID: 30300385 PMCID: PMC6177195 DOI: 10.1371/journal.pone.0205180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/20/2018] [Indexed: 01/19/2023] Open
Abstract
Despite the identification of many susceptibility genes our knowledge of the underlying mechanisms responsible for complex disease remains limited. Here, we identified a type 2 diabetes disease module in endosomes, and validate it for functional relevance on selected nodes. Using hepatic Golgi/endosomes fractions, we established a proteome of insulin receptor-containing endosomes that allowed the study of physical protein interaction networks on a type 2 diabetes background. The resulting collated network is formed by 313 nodes and 1147 edges with a topology organized around a few major hubs with Cdk2 displaying the highest collective influence. Overall, 88% of the nodes are associated with the type 2 diabetes genetic risk, including 101 new candidates. The Type 2 diabetes module is enriched with cytoskeleton and luminal acidification–dependent processes that are shared with secretion-related mechanisms. We identified new signaling pathways driven by Cdk2 and PTPLAD1 whose expression affects the association of the insulin receptor with TUBA, TUBB, the actin component ACTB and the endosomal sorting markers Rab5c and Rab11a. Therefore, the interactome of internalized insulin receptors reveals the presence of a type 2 diabetes disease module enriched in new layers of feedback loops required for insulin signaling, clearance and islet biology.
Collapse
Affiliation(s)
- Martial Boutchueng-Djidjou
- Départment of Pediatrics, Faculty of Medicine, Université Laval, Centre de Recherche du CHU de Québec, Québec city, Canada
| | - Pascal Belleau
- Plateforme Protéomique de l’Est du Québec, Université Laval. Université Laval, Québec, QC, Canada
| | - Nicolas Bilodeau
- Départment of Pediatrics, Faculty of Medicine, Université Laval, Centre de Recherche du CHU de Québec, Québec city, Canada
| | - Suzanne Fortier
- Départment of Pediatrics, Faculty of Medicine, Université Laval, Centre de Recherche du CHU de Québec, Québec city, Canada
| | - Sylvie Bourassa
- Plateforme Protéomique de l’Est du Québec, Université Laval. Université Laval, Québec, QC, Canada
| | - Arnaud Droit
- Plateforme Protéomique de l’Est du Québec, Université Laval. Université Laval, Québec, QC, Canada
| | - Sabine Elowe
- Départment of Pediatrics, Faculty of Medicine, Université Laval, Centre de Recherche du CHU de Québec, Québec city, Canada
| | - Robert L. Faure
- Départment of Pediatrics, Faculty of Medicine, Université Laval, Centre de Recherche du CHU de Québec, Québec city, Canada
- * E-mail:
| |
Collapse
|
29
|
Del Carpio E, Hernández L, Ciangherotti C, Villalobos Coa V, Jiménez L, Lubes V, Lubes G. Vanadium: History, chemistry, interactions with α-amino acids and potential therapeutic applications. Coord Chem Rev 2018; 372:117-140. [PMID: 32226092 PMCID: PMC7094547 DOI: 10.1016/j.ccr.2018.06.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 06/03/2018] [Indexed: 12/11/2022]
Abstract
In the last 30 years, since the discovery that vanadium is a cofactor found in certain enzymes of tunicates and possibly in mammals, different vanadium-based drugs have been developed targeting to treat different pathologies. So far, the in vitro studies of the insulin mimetic, antitumor and antiparasitic activity of certain compounds of vanadium have resulted in a great boom of its inorganic and bioinorganic chemistry. Chemical speciation studies of vanadium with amino acids under controlled conditions or, even in blood plasma, are essential for the understanding of the biotransformation of e.g. vanadium antidiabetic complexes at the physiological level, providing clues of their mechanism of action. The present article carries out a bibliographical research emphaticizing the chemical speciation of the vanadium with different amino acids and reviewing also some other important aspects such as its chemistry and therapeutical applications of several vanadium complexes.
Collapse
Key Words
- 2,2′-bipy, 2,2-bipyridine
- 6-mepic, 6-methylpicolinic acid
- Ad, adenosine
- Ala, alanine
- Ala-Gly, alanylglycine
- Ala-His, alanylhistidine
- Ala-Ser, alanylserine
- Amino acids
- Antidiabetics
- Antitumors
- Asp, aspartic acid
- BEOV, bis(ethylmaltolate)oxovanadium(IV)
- Chemical speciation
- Cys, cysteine
- Cyt, citrate
- DMF, N,N-dimethylformamide
- DNA, deoxyribonucleic acid
- EPR, Electron Paramagnetic Resonance
- G, Gauss
- Glu, glutamic acid
- Gly, glycine
- GlyAla, glycylalanine
- GlyGly, glycylglycine
- GlyGlyCys, glycylglycylcysteine
- GlyGlyGly, glycylglycylglycine
- GlyGlyHis, glycylglycylhistidine
- GlyPhe, glycylphenylalanine
- GlyTyr, glycyltyrosine
- GlyVal, glycylvaline
- HIV, human immunodeficiency virus
- HSA, albumin
- Hb, hemoglobin
- His, histidine
- HisGlyGly, histidylglycylglycine
- Ig, immunoglobulins
- Im, imidazole
- L-Glu(γ)HXM, l-glutamic acid γ-monohydroxamate
- LD50, the amount of a toxic agent (such as a poison, virus, or radiation) that is sufficient to kill 50 percent of population of animals
- Lac, lactate
- MeCN, acetonitrile
- NADH and NAD+, nicotinamide adenine dinucleotide
- NEP, neutral endopeptidas
- NMR, Nuclear Magnetic Resonance
- Ox, oxalate
- PI3K, phosphoinositide 3-kinase
- PTP1B, protein tyrosine phosphatase 1B
- Pic, picolinic acid
- Pro, proline
- Pro-Ala, prolylalanine
- RNA, ribonucleic acid
- SARS, severe acute respiratory syndrome
- Sal-Ala, N-salicylidene-l-alaninate
- SalGly, salicylglycine
- SalGlyAla, salicylglycylalanine
- Ser, serine
- T, Tesla
- THF, tetrahydrofuran
- Thr, threonine
- VBPO, vanadium bromoperoxidases
- VanSer, Schiff base formed from o-vanillin and l-serine
- Vanadium complexes
- acac, acetylacetone
- dhp, 1,2-dimethyl-3-hydroxy-4(1H)-pyridinone
- dipic, dipicolinic acid
- dmpp, 1,2-dimethyl-3-hydroxy-4-pyridinonate
- hTf, transferring
- hpno, 2-hydroxypyridine-N-oxide
- l.m.m., low molecular mass
- mal, maltol
- py, pyridine
- sal-l-Phe, N-salicylidene-l-tryptophanate
- salGlyGly, N-salicylideneglycylglycinate
- salSer, N-salicylideneserinate
- salTrp, N-salicylidene-L tryptophanate
- salVal, N-salicylidene-l-valinate
- salophen, N,N′-bis(salicylidene)-o-phenylenediamine
- saltrp, N-salicylidene-l-tryptophanate
- γ-PGA, poly-γ-glutamic acid
Collapse
Affiliation(s)
- Edgar Del Carpio
- Laboratorio de Equilibrios en Solución, Universidad Simón Bolívar (USB), Apartado 89000, Caracas 1080 A, Venezuela
- Unidad de Química Medicinal, Facultad de Farmacia, Escuela “Dr. Jesús María Bianco”, Universidad Central de Venezuela, Venezuela
| | - Lino Hernández
- Laboratorio de Equilibrios en Solución, Universidad Simón Bolívar (USB), Apartado 89000, Caracas 1080 A, Venezuela
- Escuela de Quimica, Facultad de Ciencias, Universidad Central de Venezuela, Venezuela
| | - Carlos Ciangherotti
- Laboratorio de Neuropéptidos, Facultad de Farmacia, Escuela “Dr. Jesús María Bianco”, Universidad Central de Venezuela, Venezuela
- Laboratorio de Bioquímica, Facultad de Farmacia, Escuela “Dr. Jesús María Bianco”, Universidad Central de Venezuela, Venezuela
| | - Valentina Villalobos Coa
- Laboratorio de Equilibrios en Solución, Universidad Simón Bolívar (USB), Apartado 89000, Caracas 1080 A, Venezuela
| | - Lissette Jiménez
- Facultad de ingeniería Química, Universidad de Carabobo, Venezuela
| | - Vito Lubes
- Laboratorio de Equilibrios en Solución, Universidad Simón Bolívar (USB), Apartado 89000, Caracas 1080 A, Venezuela
| | - Giuseppe Lubes
- Laboratorio de Equilibrios en Solución, Universidad Simón Bolívar (USB), Apartado 89000, Caracas 1080 A, Venezuela
| |
Collapse
|
30
|
Wen LZ, Ding K, Wang ZR, Ding CH, Lei SJ, Liu JP, Yin C, Hu PF, Ding J, Chen WS, Zhang X, Xie WF. SHP-1 Acts as a Tumor Suppressor in Hepatocarcinogenesis and HCC Progression. Cancer Res 2018; 78:4680-4691. [PMID: 29776962 DOI: 10.1158/0008-5472.can-17-3896] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 03/27/2018] [Accepted: 05/15/2018] [Indexed: 12/28/2022]
Abstract
Src homology region 2 (SH2) domain-containing phosphatase 1 (SHP-1, also known as PTPN6) is a nonreceptor protein tyrosine phosphatase that acts as a negative regulator of inflammation. Emerging evidence indicates that SHP-1 plays a role in inhibiting the progression of hepatocellular carcinoma (HCC). However, the role of SHP-1 in hepatocarcinogenesis remains unknown. Here, we find that levels of SHP-1 are significantly downregulated in human HCC tissues compared with those in noncancerous tissues (P < 0.001) and inversely correlate with tumor diameters (r = -0.4130, P = 0.0002) and serum α-fetoprotein levels (P = 0.047). Reduced SHP-1 expression was associated with shorter overall survival of patients with HCC with HBV infection. Overexpression of SHP-1 suppressed proliferation, migration, invasion, and tumorigenicity of HCC cells, whereas knockdown of SHP-1 enhanced the malignant phenotype. Moreover, knockout of Ptpn6 in hepatocytes (Ptpn6HKO ) enhanced hepatocarcinogenesis induced by diethylnitrosamine (DEN) as well as metastasis of primary liver cancer in mice. Furthermore, systemic delivery of SHP-1 by an adenovirus expression vector exerted a therapeutic effect in an orthotopic model of HCC in NOD/SCID mice and DEN-induced primary liver cancers in Ptpn6HKO mice. In addition, SHP-1 inhibited the activation of JAK/STAT, NF-κB, and AKT signaling pathways, but not the MAPK pathway in primary hepatocytes from DEN-treated mice and human HCC cells. Together, our data implicate SHP-1 as a tumor suppressor of hepatocarcinogenesis and HCC progression and propose it as a novel prognostic biomarker and therapeutic target of HCC.Significance: The nonreceptor protein tyrosine phosphatase SHP-1 acts as a tumor suppressor in hepatocellular carcinoma. Cancer Res; 78(16); 4680-91. ©2018 AACR.
Collapse
Affiliation(s)
- Liang-Zhi Wen
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Kai Ding
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ze-Rui Wang
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Chen-Hong Ding
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Shu-Juan Lei
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Jin-Pei Liu
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Chuan Yin
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ping-Fang Hu
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Jin Ding
- International Cooperation Laboratory on Signal Transduction of Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai, China
| | - Wan-Sheng Chen
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Xin Zhang
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China. .,Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Fen Xie
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai, China. .,Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
31
|
Chen Q, Yuan H, Shi GD, Wu Y, Liu DF, Lin YT, Chen L, Ge WL, Jiang K, Miao Y. Association between NR5A2 and the risk of pancreatic cancer, especially among Caucasians: a meta-analysis of case-control studies. Onco Targets Ther 2018; 11:2709-2723. [PMID: 29785120 PMCID: PMC5953269 DOI: 10.2147/ott.s157759] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Previous studies have reported that nuclear receptor subfamily 5, group A, member 2 (NR5A2) polymorphisms (rs3790843 G>A, rs3790844 T>C, rs12029406 C>T) are associated with the risk of pancreatic cancer. However, the results of epidemiological investigations are still controversial. In order to explore its potential attributing factors, we pooled the updated literatures to evaluate the association between NR5A2 polymorphism and the risk of pancreatic cancer in this meta-analysis. Materials and methods Databases such as PubMed, Google Scholar and China National Knowledge Infrastructure were searched for eligible articles following strict inclusion and exclusion criteria (updated to November 18, 2017). Odds ratios (ORs) and 95% CIs were computed to assess the intensity of association. In addition, heterogeneity, sensitivity analysis and publication bias were explored. All statistical analyses were conducted by STATA 14.0. Results Our results showed that the rs3790843 (GA vs GG: OR=0.86, CI=0.76–0.98, P=0.992; GA+AA vs GG: OR=0.83, CI=0.73–0.94, P=0.950; A vs G: OR=0.85, CI=0.78–0.93, P=0.802), rs3790844 (CC vs TT: OR=0.65, CI=0.54–0.78, P=0.617; CC vs TT+CT: OR=0.73, CI=0.62–0.85, P=0.742; C vs T: OR=0.78, CI=0.73–0.84, P=0.555) and rs12029406 (TT vs CC: OR=0.73, CI=0.61–0.89, P=0.483; TT vs CC+CT: OR=0.78, CI=0.66–0.92, P=0.648; T vs C: OR=0.87, CI=0.79–0.95, P=0.837) polymorphisms were associated statistically with the risk of pancreatic cancer. Furthermore, the results of subgroup analysis showed that rs3790843 and rs3790844 polymorphisms were especially related to the risk of pancreatic cancer in Caucasian population. Conclusion Our results revealed that NR5A2 may have a protective effect on pancreatic cancer. However, more well-designed researches are needed to verify the relationship between NR5A2 polymorphisms and the risk of pancreatic cancer.
Collapse
Affiliation(s)
- Qun Chen
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Hao Yuan
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Guo-Dong Shi
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Yang Wu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China.,Division of Pancreatic Surgery, Department of General, Visceral, and Transplantation Surgery, Ludwig-Maximilians University, Munich, Germany
| | - Dong-Fang Liu
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Yu-Ting Lin
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Lei Chen
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Wan-Li Ge
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Kuirong Jiang
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| | - Yi Miao
- Pancreas Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Pancreas Institute, Nanjing Medical University, Nanjing, China
| |
Collapse
|
32
|
Anhê FF, Varin TV, Le Barz M, Pilon G, Dudonné S, Trottier J, St-Pierre P, Harris CS, Lucas M, Lemire M, Dewailly É, Barbier O, Desjardins Y, Roy D, Marette A. Arctic berry extracts target the gut-liver axis to alleviate metabolic endotoxaemia, insulin resistance and hepatic steatosis in diet-induced obese mice. Diabetologia 2018; 61:919-931. [PMID: 29270816 DOI: 10.1007/s00125-017-4520-z] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 11/07/2017] [Indexed: 01/06/2023]
Abstract
AIMS/HYPOTHESIS There is growing evidence that fruit polyphenols exert beneficial effects on the metabolic syndrome, but the underlying mechanisms remain poorly understood. In the present study, we aimed to analyse the effects of polyphenolic extracts from five types of Arctic berries in a model of diet-induced obesity. METHODS Male C57BL/6 J mice were fed a high-fat/high-sucrose (HFHS) diet and orally treated with extracts of bog blueberry (BBE), cloudberry (CLE), crowberry (CRE), alpine bearberry (ABE), lingonberry (LGE) or vehicle (HFHS) for 8 weeks. An additional group of standard-chow-fed, vehicle-treated mice was included as a reference control for diet-induced obesity. OGTTs and insulin tolerance tests were conducted, and both plasma insulin and C-peptide were assessed throughout the OGTT. Quantitative PCR, western blot analysis and ELISAs were used to assess enterohepatic immunometabolic features. Faecal DNA was extracted and 16S rRNA gene-based analysis was used to profile the gut microbiota. RESULTS Treatment with CLE, ABE and LGE, but not with BBE or CRE, prevented both fasting hyperinsulinaemia (mean ± SEM [pmol/l]: chow 67.2 ± 12.3, HFHS 153.9 ± 19.3, BBE 114.4 ± 14.3, CLE 82.5 ± 13.0, CRE 152.3 ± 24.4, ABE 90.6 ± 18.0, LGE 95.4 ± 10.5) and postprandial hyperinsulinaemia (mean ± SEM AUC [pmol/l × min]: chow 14.3 ± 1.4, HFHS 31.4 ± 3.1, BBE 27.2 ± 4.0, CLE 17.7 ± 2.2, CRE 32.6 ± 6.3, ABE 22.7 ± 18.0, LGE 23.9 ± 2.5). None of the berry extracts affected C-peptide levels or body weight gain. Levels of hepatic serine phosphorylated Akt were 1.6-, 1.5- and 1.2-fold higher with CLE, ABE and LGE treatment, respectively, and hepatic carcinoembryonic antigen-related cell adhesion molecule (CEACAM)-1 tyrosine phosphorylation was 0.6-, 0.7- and 0.9-fold increased in these mice vs vehicle-treated, HFHS-fed mice. These changes were associated with reduced liver triacylglycerol deposition, lower circulating endotoxins, alleviated hepatic and intestinal inflammation, and major gut microbial alterations (e.g. bloom of Akkermansia muciniphila, Turicibacter and Oscillibacter) in CLE-, ABE- and LGE-treated mice. CONCLUSIONS/INTERPRETATION Our findings reveal novel mechanisms by which polyphenolic extracts from ABE, LGE and especially CLE target the gut-liver axis to protect diet-induced obese mice against metabolic endotoxaemia, insulin resistance and hepatic steatosis, which importantly improves hepatic insulin clearance. These results support the potential benefits of these Arctic berries and their integration into health programmes to help attenuate obesity-related chronic inflammation and metabolic disorders. DATA AVAILABILITY All raw sequences have been deposited in the public European Nucleotide Archive server under accession number PRJEB19783 ( https://www.ebi.ac.uk/ena/data/view/PRJEB19783 ).
Collapse
Affiliation(s)
- Fernando F Anhê
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Québec Heart and Lung Institute, Laval University, Bureau Y4340, Québec City, QC, G1V 4G5, Canada
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Thibault V Varin
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Mélanie Le Barz
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Québec Heart and Lung Institute, Laval University, Bureau Y4340, Québec City, QC, G1V 4G5, Canada
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Geneviève Pilon
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Québec Heart and Lung Institute, Laval University, Bureau Y4340, Québec City, QC, G1V 4G5, Canada
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Stéphanie Dudonné
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Jocelyn Trottier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre, Laval University, Québec City, QC, Canada
- Faculty of Pharmacy, Laval University, Québec City, QC, Canada
| | - Philippe St-Pierre
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Québec Heart and Lung Institute, Laval University, Bureau Y4340, Québec City, QC, G1V 4G5, Canada
| | - Cory S Harris
- Department of Biology, University of Ottawa, Ottawa, ON, Canada
| | - Michel Lucas
- Populations Health and Optimal Health Practices Axis of the CHU-Québec Research Centre, Department of Social and Preventive Medicine, Laval University, Québec City, QC, Canada
| | - Mélanie Lemire
- Populations Health and Optimal Health Practices Axis of the CHU-Québec Research Centre, Department of Social and Preventive Medicine, Laval University, Québec City, QC, Canada
| | - Éric Dewailly
- Populations Health and Optimal Health Practices Axis of the CHU-Québec Research Centre, Department of Social and Preventive Medicine, Laval University, Québec City, QC, Canada
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre, Laval University, Québec City, QC, Canada
- Faculty of Pharmacy, Laval University, Québec City, QC, Canada
| | - Yves Desjardins
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - Denis Roy
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada
| | - André Marette
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Québec Heart and Lung Institute, Laval University, Bureau Y4340, Québec City, QC, G1V 4G5, Canada.
- Institute of Nutrition and Functional Foods, Laval University, Québec City, QC, Canada.
| |
Collapse
|
33
|
Ding CH, Yin C, Chen SJ, Wen LZ, Ding K, Lei SJ, Liu JP, Wang J, Chen KX, Jiang HL, Zhang X, Luo C, Xie WF. The HNF1α-regulated lncRNA HNF1A-AS1 reverses the malignancy of hepatocellular carcinoma by enhancing the phosphatase activity of SHP-1. Mol Cancer 2018; 17:63. [PMID: 29466992 PMCID: PMC5822613 DOI: 10.1186/s12943-018-0813-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/08/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Our previous study has demonstrated that hepatocyte nuclear factor 1α (HNF1α) exerts potent therapeutic effects on hepatocellular carcinoma (HCC). However, the molecular mechanisms by which HNF1α reverses HCC malignancy need to be further elucidated. METHODS lncRNA microarray was performed to identify the long noncoding RNAs (lncRNAs) regulated by HNF1α. Chromatin immunoprecipitation and luciferase reporter assays were applied to clarify the mechanism of the transcriptional regulation of HNF1α to HNF1A antisense RNA 1 (HNF1A-AS1). The effect of HNF1A-AS1 on HCC malignancy was evaluated in vitro and in vivo. RNA pulldown, RNA-binding protein immunoprecipitation and the Bio-Layer Interferometry assay were used to validate the interaction of HNF1A-AS1 and Src homology region 2 domain-containing phosphatase 1 (SHP-1). RESULTS HNF1α regulated the expression of a subset of lncRNAs in HCC cells. Among these lncRNAs, the expression levels of HNF1A-AS1 were notably correlated with HNF1α levels in HCC cells and human HCC tissues. HNF1α activated the transcription of HNF1A-AS1 by directly binding to its promoter region. HNF1A-AS1 inhibited the growth and the metastasis of HCC cells in vitro and in vivo. Moreover, knockdown of HNF1A-AS1 reversed the suppressive effects of HNF1α on the migration and invasion of HCC cells. Importantly, HNF1A-AS1 directly bound to the C-terminal of SHP-1 with a high binding affinity (KD = 59.57 ± 14.29 nM) and increased the phosphatase activity of SHP-1. Inhibition of SHP-1 enzymatic activity substantially reversed the HNF1α- or HNF1A-AS1-induced reduction on the metastatic property of HCC cells. CONCLUSIONS Our data revealed that HNF1A-AS1 is a direct transactivation target of HNF1α in HCC cells and involved in the anti-HCC effect of HNF1α. HNF1A-AS1 functions as phosphatase activator through the direct interaction with SHP-1. These findings suggest that regulation of the HNF1α/HNF1A-AS1/SHP-1 axis may have beneficial effects in the treatment of HCC.
Collapse
Affiliation(s)
- Chen-Hong Ding
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Chuan Yin
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Shi-Jie Chen
- Drug Discovery and Design Center, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, 201203, China
| | - Liang-Zhi Wen
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.,Present address: Department of Gastroenterology, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Kai Ding
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Shu-Juan Lei
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Jin-Pei Liu
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Jian Wang
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Kai-Xian Chen
- Drug Discovery and Design Center, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, 201203, China
| | - Hua-Liang Jiang
- Drug Discovery and Design Center, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, 201203, China
| | - Xin Zhang
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Cheng Luo
- Drug Discovery and Design Center, CAS Key Laboratory of Receptor Research, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences (CAS), Shanghai, 201203, China.
| | - Wei-Fen Xie
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
| |
Collapse
|
34
|
Raymond AA, Javary J, Breig O, Neaud V, Rosenbaum J. Reptin regulates insulin-stimulated Akt phosphorylation in hepatocellular carcinoma via the regulation of SHP-1/PTPN6. Cell Biochem Funct 2017; 35:289-295. [DOI: 10.1002/cbf.3274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 06/22/2017] [Accepted: 07/03/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Anne-Aurélie Raymond
- University of Bordeaux; INSERM, U1053, Bordeaux Research In Translational Oncology, BaRITOn; Bordeaux France
| | - Joaquim Javary
- University of Bordeaux; INSERM, U1053, Bordeaux Research In Translational Oncology, BaRITOn; Bordeaux France
| | - Osman Breig
- University of Bordeaux; INSERM, U1053, Bordeaux Research In Translational Oncology, BaRITOn; Bordeaux France
| | - Véronique Neaud
- University of Bordeaux; INSERM, U1053, Bordeaux Research In Translational Oncology, BaRITOn; Bordeaux France
| | - Jean Rosenbaum
- University of Bordeaux; INSERM, U1053, Bordeaux Research In Translational Oncology, BaRITOn; Bordeaux France
| |
Collapse
|
35
|
Liu Y, Lou G, Norton JT, Wang C, Kandela I, Tang S, Shank NI, Gupta P, Huang M, Avram MJ, Green R, Mazar A, Appella D, Chen Z, Huang S. 6-Methoxyethylamino-numonafide inhibits hepatocellular carcinoma xenograft growth as a single agent and in combination with sorafenib. FASEB J 2017; 31:5453-5465. [PMID: 28821631 DOI: 10.1096/fj.201700306rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/31/2017] [Indexed: 01/08/2023]
Abstract
Hepatocellular carcinoma (HCC) is the third leading form of cancer worldwide, and its incidence is increasing rapidly in the United States, tripling over the past 3 decades. The current chemotherapeutic strategies against localized and metastatic HCC are ineffective. Here we report that 6-methoxyethylamino-numonafide (MEAN) is a potent growth inhibitor of murine xenografts of 2 human HCC cell lines. At the same dose and with the same treatment strategies, MEAN was more efficacious in inhibiting tumor growth in mice than sorafenib, the only approved drug for HCC. Treatment by MEAN at an effective dose for 6 wk was well tolerated by animals. Combined therapy using both sorafenib and MEAN enhanced tumor growth inhibition over monotherapy with either agent. Additional experiments revealed that MEAN inhibited tumor growth through mechanisms distinct from those of either its parent compound, amonafide, or sorafenib. MEAN suppressed C-MYC expression and increased expression of several tumor suppressor genes, including Src homology region 2 domain-containing phosphatase-1 (SHP-1) and TXNIP (thioredoxin-interacting protein). As an encouraging feature for envisioned clinical application, the IC50 of MEAN was not significantly changed in several drug-resistant cell lines with activated P-glycoprotein drug efflux pumps compared to drug-sensitive parent cells, demonstrating the ability of MEAN to be effective in cells resistant to existing chemotherapy regimens. MEAN is a promising candidate for clinical development as a single-agent therapy or in combination with sorafenib for the management of HCC.-Liu, Y., Lou, G., Norton, J. T., Wang, C., Kandela, I., Tang, S., Shank, N. I., Gupta, P., Huang, M., Avram, M. J., Green, R., Mazar, A., Appella, D., Chen, Z., Huang, S. 6-Methoxyethylamino-numonafide inhibits hepatocellular carcinoma xenograft growth as a single agent and in combination with sorafenib.
Collapse
Affiliation(s)
- Yanning Liu
- State Key Laboratory of Infectious Disease Diagnosis and Treatment, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lou
- State Key Laboratory of Infectious Disease Diagnosis and Treatment, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - John T Norton
- Department of Cell and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Chen Wang
- Department of Cell and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Irawati Kandela
- Developmental Therapeutics Core, Northwestern University, Chicago, Illinois, USA
| | - Shuai Tang
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Nathaniel I Shank
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Pankaj Gupta
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Min Huang
- Division of Anti-Tumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Michael J Avram
- Department of Anesthesiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Richard Green
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Andrew Mazar
- Developmental Therapeutics Core, Northwestern University, Chicago, Illinois, USA
| | - Daniel Appella
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Zhi Chen
- State Key Laboratory of Infectious Disease Diagnosis and Treatment, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China;
| | - Sui Huang
- Department of Cell and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA;
| |
Collapse
|
36
|
Leblanc C, Langlois M, Coulombe G, Vaillancourt‐Lavigueur V, Jones C, Carrier JC, Boudreau F, Rivard N. Epithelial Src homology region 2 domain–containing phosphatase‐1 restrains intestinal growth, secretory cell differentiation, and tumorigenesis. FASEB J 2017; 31:3512-3526. [DOI: 10.1096/fj.201601378r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Affiliation(s)
- Caroline Leblanc
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Marie‐Josée Langlois
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Geneviève Coulombe
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Vanessa Vaillancourt‐Lavigueur
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Christine Jones
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Julie C. Carrier
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - François Boudreau
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| | - Nathalie Rivard
- Département d'Anatomie et de Biologie CellulaireFaculté de Médecine et des Sciences de la SantéUniversité de Sherbrooke Sherbrooke Quebec Canada
| |
Collapse
|
37
|
Adhikari A, Martel C, Marette A, Olivier M. Hepatocyte SHP-1 is a Critical Modulator of Inflammation During Endotoxemia. Sci Rep 2017; 7:2218. [PMID: 28533521 PMCID: PMC5440389 DOI: 10.1038/s41598-017-02512-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/12/2017] [Indexed: 12/12/2022] Open
Abstract
Liver hepatocytes (Hep) are known to be central players during the inflammatory response to systemic infection. Interestingly, the protein tyrosine phosphatases (PTP) SHP-1, has been recognized as a major regulator of inflammation; however their implication in the control of Hep-mediated inflammatory response is still unknown. To study its implication in the regulation of the Hep-mediated inflammatory response during endotoxemia, Cre-Lox mice with a Hep-specific Ptpn6 deletion (Ptpn6H-KO) were injected with LPS. In contrast to the wild-type mice (Ptpn6f/f) that started to die by 24 hrs post-inoculation, the Ptpn6H-KO mice exhibited mortality by 6 hrs. In parallel, higher amounts of metabolic markers, pro-inflammatory mediators and circulating cytokines were detected in Ptpn6H-KO mice. Primary Hep obtained from Ptpn6H-KO, also showed increased secretion of pro-inflammatory cytokines and nitric oxide (NO) comparatively to its wild type (Ptpn6f/f) counterpart. Pharmacological approaches to block TNF-α and NO production protected both the Ptpn6f/f and the Ptpn6H-KO mice against deadly LPS-mediated endotoxemia. Collectively, these results establish hepatocyte SHP-1 is a critical player regulating systemic inflammation. Our findings further suggest that SHP-1 activation could represent a new therapeutic avenue to better control inflammatory-related pathologies.
Collapse
Affiliation(s)
- Anupam Adhikari
- Department of Medicine, Microbiology and Immunology, Faculty of Medicine, McGill University, Montréal, Québec, Canada.,The Research Institute of the McGill University Health Centre and Infectious Diseases and Immunity in Global Health Program, Montréal, Québec, Canada
| | - Caroline Martel
- Department of Medicine, Microbiology and Immunology, Faculty of Medicine, McGill University, Montréal, Québec, Canada.,The Research Institute of the McGill University Health Centre and Infectious Diseases and Immunity in Global Health Program, Montréal, Québec, Canada
| | - André Marette
- Heart and Lung Institute (Laval Hospital), Université Laval, Québec, QC, Canada
| | - Martin Olivier
- Department of Medicine, Microbiology and Immunology, Faculty of Medicine, McGill University, Montréal, Québec, Canada. .,The Research Institute of the McGill University Health Centre and Infectious Diseases and Immunity in Global Health Program, Montréal, Québec, Canada.
| |
Collapse
|
38
|
Dankner M, Gray-Owen SD, Huang YH, Blumberg RS, Beauchemin N. CEACAM1 as a multi-purpose target for cancer immunotherapy. Oncoimmunology 2017; 6:e1328336. [PMID: 28811966 PMCID: PMC5543821 DOI: 10.1080/2162402x.2017.1328336] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 05/03/2017] [Accepted: 05/05/2017] [Indexed: 02/06/2023] Open
Abstract
CEACAM1 is an extensively studied cell surface molecule with established functions in multiple cancer types, as well as in various compartments of the immune system. Due to its multi-faceted role as a recently appreciated immune checkpoint inhibitor and tumor marker, CEACAM1 is an attractive target for cancer immunotherapy. Herein, we highlight CEACAM1's function in various immune compartments and cancer types, including in the context of metastatic disease. This review outlines CEACAM1's role as a therapeutic target for cancer treatment in light of these properties.
Collapse
Affiliation(s)
- Matthew Dankner
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| | - Scott D Gray-Owen
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Yu-Hwa Huang
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Richard S Blumberg
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nicole Beauchemin
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| |
Collapse
|
39
|
Sharma Y, Bashir S, Ansarullah, Faraz Khan M, Ahmad A, Khan F. Inhibition of Src homology 2 domain containing protein tyrosine phosphatase as the possible mechanism of metformin-assisted amelioration of obesity induced insulin resistance in high fat diet fed C57BL/6J mice. Biochem Biophys Res Commun 2017; 487:54-61. [PMID: 28389241 DOI: 10.1016/j.bbrc.2017.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 11/28/2022]
Abstract
SHP-1 (Src homology 2 domain containing protein tyrosine phosphatase) is a known negative regulator of insulin signaling and inflammation. To date, the molecular mechanism of metformin in modulating SHP-1 expression has remained elusive. In the present study, we have investigated the role of SHP-1 in relation to anti-hyperglycemic and anti-inflammatory actions of metformin in an obese phenotype mouse model. We observed that metformin treatment significantly reduced SHP-1 activity in obese mice, leading to improved insulin sensitivity. Additionally, metformin down regulated inflammatory markers like TLR2, TLR4, CD80, CD86, NF-κB, STAT1 and suppressed adipose tissue inflammation by efficiently polarizing adipose tissue macrophages toward anti-inflammatory state by way of indirect inhibition of SHP-1 mRNA and protein expressions. Our study suggests that metformin exerts its insulin sensitizing effects via inhibition of SHP-1 activity and expression.
Collapse
Affiliation(s)
- Yadhu Sharma
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Samina Bashir
- Department of Biochemistry, Islamia College of Science and Commerce, Srinagar, Jammu & Kashmir 190002, India
| | - Ansarullah
- International Biomedicine and Genome Center, Balcova, Izmir 35340, Turkey
| | - Mohemmed Faraz Khan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, New Delhi 110062, India
| | - Altaf Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Farah Khan
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India.
| |
Collapse
|
40
|
Merry TL, Tran M, Dodd GT, Mangiafico SP, Wiede F, Kaur S, McLean CL, Andrikopoulos S, Tiganis T. Hepatocyte glutathione peroxidase-1 deficiency improves hepatic glucose metabolism and decreases steatohepatitis in mice. Diabetologia 2016; 59:2632-2644. [PMID: 27628106 DOI: 10.1007/s00125-016-4084-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 08/05/2016] [Indexed: 12/11/2022]
Abstract
AIMS/HYPOTHESIS In obesity oxidative stress is thought to contribute to the development of insulin resistance, non-alcoholic fatty liver disease and the progression to non-alcoholic steatohepatitis. Our aim was to examine the precise contributions of hepatocyte-derived H2O2 to liver pathophysiology. METHODS Glutathione peroxidase (GPX) 1 is an antioxidant enzyme that is abundant in the liver and converts H2O2 to water. We generated Gpx1 lox/lox mice to conditionally delete Gpx1 in hepatocytes (Alb-Cre;Gpx1 lox/lox) and characterised mice fed chow, high-fat or choline-deficient amino-acid-defined (CDAA) diets. RESULTS Chow-fed Alb-Cre;Gpx1 lox/lox mice did not exhibit any alterations in body composition or energy expenditure, but had improved insulin sensitivity and reduced fasting blood glucose. This was accompanied by decreased gluconeogenic and increased glycolytic gene expression as well as increased hepatic glycogen. Hepatic insulin receptor Y1163/Y1163 phosphorylation and Akt Ser-473 phosphorylation were increased in fasted chow-fed Alb-Cre;Gpx1 lox/lox mice, associated with increased H2O2 production and insulin signalling in isolated hepatocytes. The enhanced insulin signalling was accompanied by the increased oxidation of hepatic protein tyrosine phosphatases previously implicated in the attenuation of insulin signalling. High-fat-fed Alb-Cre;Gpx1 lox/lox mice did not exhibit alterations in weight gain or hepatosteatosis, but exhibited decreased hepatic inflammation, decreased gluconeogenic gene expression and increased insulin signalling in the liver. Alb-Cre;Gpx1 lox/lox mice fed a CDAA diet that promotes non-alcoholic steatohepatitis exhibited decreased hepatic lymphocytic infiltrates, inflammation and liver fibrosis. CONCLUSIONS/INTERPRETATION Increased hepatocyte-derived H2O2 enhances hepatic insulin signalling, improves glucose control and protects mice from the development of non-alcoholic steatohepatitis.
Collapse
Affiliation(s)
- Troy L Merry
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia
- Faculty of Medical and Health Sciences, The University of Auckland, Aukland, New Zealand
| | - Melanie Tran
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia
| | - Garron T Dodd
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia
| | - Salvatore P Mangiafico
- Department of Medicine (Austin Hospital), The University of Melbourne, Melbourne, VIC, Australia
| | - Florian Wiede
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia
| | - Supreet Kaur
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia
| | - Catriona L McLean
- Department of Anatomical Pathology, Alfred Hospital, Prahran, VIC, Australia
| | - Sofianos Andrikopoulos
- Department of Medicine (Austin Hospital), The University of Melbourne, Melbourne, VIC, Australia
| | - Tony Tiganis
- Metabolic Disease and Obesity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia.
| |
Collapse
|
41
|
Lizotte F, Denhez B, Guay A, Gévry N, Côté AM, Geraldes P. Persistent Insulin Resistance in Podocytes Caused by Epigenetic Changes of SHP-1 in Diabetes. Diabetes 2016; 65:3705-3717. [PMID: 27585521 DOI: 10.2337/db16-0254] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 08/26/2016] [Indexed: 11/13/2022]
Abstract
Poor glycemic control profoundly affects protein expression and the cell signaling action that contributes to glycemic memory and irreversible progression of diabetic nephropathy (DN). We demonstrate that SHP-1 is elevated in podocytes of diabetic mice, causing insulin unresponsiveness and DN. Thus, sustained SHP-1 expression caused by hyperglycemia despite systemic glucose normalization could contribute to the glycemic memory effect in DN. Microalbuminuria, glomerular filtration rate, mesangial cell expansion, and collagen type IV and transforming growth factor-β expression were significantly increased in diabetic Ins2+/C96Y mice compared with nondiabetic Ins2+/+ mice and remained elevated despite glucose normalization with insulin implants. A persistent increase of SHP-1 expression in podocytes despite normalization of systemic glucose levels was associated with sustained inhibition of the insulin signaling pathways. In cultured podocytes, high glucose levels increased mRNA, protein expression, and phosphatase activity of SHP-1, which remained elevated despite glucose concentration returning to normal, causing persistent insulin receptor-β inhibition. Histone posttranslational modification analysis showed that the promoter region of SHP-1 was enriched with H3K4me1 and H3K9/14ac in diabetic glomeruli and podocytes, which remained elevated despite glucose level normalization. Hyperglycemia induces SHP-1 promoter epigenetic modifications, causing its persistent expression and activity and leading to insulin resistance, podocyte dysfunction, and DN.
Collapse
MESH Headings
- Animals
- Cell Line
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetic Nephropathies/genetics
- Diabetic Nephropathies/metabolism
- Epigenesis, Genetic/genetics
- Glomerular Filtration Rate/physiology
- Hyperglycemia/genetics
- Hyperglycemia/metabolism
- Immunohistochemistry
- Insulin Resistance/genetics
- Insulin Resistance/physiology
- Kidney Glomerulus/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Microscopy, Electron, Transmission
- Podocytes/metabolism
- Promoter Regions, Genetic/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/genetics
- Receptor, Insulin/genetics
- Receptor, Insulin/metabolism
- Signal Transduction/genetics
- Signal Transduction/physiology
Collapse
Affiliation(s)
- Farah Lizotte
- Research Center of CHU de Sherbrooke and Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
- Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Benoit Denhez
- Research Center of CHU de Sherbrooke and Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
- Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Andréanne Guay
- Research Center of CHU de Sherbrooke and Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
- Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Nicolas Gévry
- Department of Biology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Anne Marie Côté
- Research Center of CHU de Sherbrooke and Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
- Department of Nephrology, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Pedro Geraldes
- Research Center of CHU de Sherbrooke and Department of Medicine, Université de Sherbrooke, Sherbrooke, QC, Canada
- Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC, Canada
| |
Collapse
|
42
|
Nai W, Threapleton D, Lu J, Zhang K, Wu H, Fu Y, Wang Y, Ou Z, Shan L, Ding Y, Yu Y, Dai M. Identification of novel genes and pathways in carotid atheroma using integrated bioinformatic methods. Sci Rep 2016; 6:18764. [PMID: 26742467 PMCID: PMC4705461 DOI: 10.1038/srep18764] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 11/26/2015] [Indexed: 12/18/2022] Open
Abstract
Atherosclerosis is the primary cause of cardiovascular events and its molecular mechanism urgently needs to be clarified. In our study, atheromatous plaques (ATH) and macroscopically intact tissue (MIT) sampled from 32 patients were compared and an integrated series of bioinformatic microarray analyses were used to identify altered genes and pathways. Our work showed 816 genes were differentially expressed between ATH and MIT, including 443 that were up-regulated and 373 that were down-regulated in ATH tissues. GO functional-enrichment analysis for differentially expressed genes (DEGs) indicated that genes related to the "immune response" and "muscle contraction" were altered in ATHs. KEGG pathway-enrichment analysis showed that up-regulated DEGs were significantly enriched in the "FcεRI-mediated signaling pathway", while down-regulated genes were significantly enriched in the "transforming growth factor-β signaling pathway". Protein-protein interaction network and module analysis demonstrated that VAV1, SYK, LYN and PTPN6 may play critical roles in the network. Additionally, similar observations were seen in a validation study where SYK, LYN and PTPN6 were markedly elevated in ATH. All in all, identification of these genes and pathways not only provides new insights into the pathogenesis of atherosclerosis, but may also aid in the development of prognostic and therapeutic biomarkers for advanced atheroma.
Collapse
Affiliation(s)
- Wenqing Nai
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Diane Threapleton
- Division of Epidemiology, School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
| | - Jingbo Lu
- Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Kewei Zhang
- Department of Vascular Surgery, People's hospital of Henan province, Zhengzhou university, Zhengzhou 450003, Henan, China
| | - Hongyuan Wu
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - You Fu
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yuanyuan Wang
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Zejin Ou
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Lanlan Shan
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yan Ding
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yanlin Yu
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, National Institutes of Health, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Meng Dai
- Department of Health Management, Southern Medical University, Guangzhou 510515, Guangdong, China
| |
Collapse
|
43
|
Krüger J, Wellnhofer E, Meyborg H, Stawowy P, Östman A, Kintscher U, Kappert K. Inhibition of Src homology 2 domain-containing phosphatase 1 increases insulin sensitivity in high-fat diet-induced insulin-resistant mice. FEBS Open Bio 2016; 6:179-89. [PMID: 27047746 PMCID: PMC4794785 DOI: 10.1002/2211-5463.12000] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 11/16/2015] [Accepted: 11/19/2015] [Indexed: 11/13/2022] Open
Abstract
Insulin resistance plays a crucial role in the development of type 2 diabetes. Insulin receptor signalling is antagonized and tightly controlled by protein tyrosine phosphatases (PTPs). However, the precise role of the PTP src homology 2 domain‐containing phosphatase 1 (SHP‐1) in insulin resistance has not been explored. Male C57BL/6J mice were fed a high‐fat diet (HFD, 60% kcal from fat), to induce insulin resistance, or a low‐fat diet (LFD, 10% kcal from fat) for 10 weeks. Afterwards, HFD‐fed mice were pharmacologically treated with the SHP‐1 (Ptpn6) inhibitor sodium stibogluconate and the broad spectrum pan‐PTP inhibitor bis(maltolato)oxovanadium(IV) (BMOV). Both inhibitors ameliorated the metabolic phenotype, as evidenced by reduced body weight, improved insulin sensitivity and glucose tolerance, which was not due to altered PTP gene expression. In parallel, phosphorylation of the insulin receptor and of the insulin signalling key intermediate Akt was enhanced, and both PTP inhibitors and siRNA‐mediated SHP‐1 downregulation resulted in an increased glucose uptake in vitro. Finally, recombinant SHP‐1 was capable of dephosphorylating the ligand‐induced tyrosine‐phosphorylated insulin receptor. These results indicate a central role of SHP‐1 in insulin signalling during obesity, and SHP‐1 inhibition as a potential therapeutic approach in metabolic diseases.
Collapse
Affiliation(s)
- Janine Krüger
- Center for Cardiovascular Research/CCR Institute of Laboratory Medicine Clinical Chemistry and Pathobiochemistry Charité - Universitätsmedizin Germany
| | | | - Heike Meyborg
- Department of Medicine/Cardiology Deutsches Herzzentrum Germany
| | - Philipp Stawowy
- Department of Medicine/Cardiology Deutsches Herzzentrum Germany
| | - Arne Östman
- Cancer Center Karolinska Karolinska Institutet Stockholm Sweden
| | - Ulrich Kintscher
- Center for Cardiovascular Research/CCR Institute of Pharmacology Charité - Universitätsmedizin Berlin Germany
| | - Kai Kappert
- Center for Cardiovascular Research/CCR Institute of Laboratory Medicine Clinical Chemistry and Pathobiochemistry Charité - Universitätsmedizin Germany
| |
Collapse
|
44
|
An HNF1α-regulated feedback circuit modulates hepatic fibrogenesis via the crosstalk between hepatocytes and hepatic stellate cells. Cell Res 2015; 25:930-45. [PMID: 26169608 PMCID: PMC4528057 DOI: 10.1038/cr.2015.84] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Revised: 01/27/2015] [Accepted: 06/02/2015] [Indexed: 12/29/2022] Open
Abstract
Hepatocytes are critical for the maintenance of liver homeostasis, but its involvement in hepatic fibrogenesis remains elusive. Hepatocyte nuclear factor 1α (HNF1α) is a liver-enriched transcription factor that plays a key role in hepatocyte function. Our previous study revealed a significant inhibitory effect of HNF1α on hepatocellular carcinoma. In this study, we report that the expression of HNF1α is significantly repressed in both human and rat fibrotic liver. Knockdown of HNF1α in the liver significantly aggravates hepatic fibrogenesis in either dimethylnitrosamine (DMN) or bile duct ligation (BDL) model in rats. In contrast, forced expression of HNF1α markedly alleviates hepatic fibrosis. HNF1α regulates the transcriptional expression of SH2 domain-containing phosphatase-1 (SHP-1) via directly binding to SHP-1 promoter in hepatocytes. Inhibition of SHP-1 expression abrogates the anti-fibrotic effect of HNF1α in DMN-treated rats. Moreover, HNF1α repression in primary hepatocytes leads to the activation of NF-κB and JAK/STAT pathways and initiates an inflammatory feedback circuit consisting of HNF1α, SHP-1, STAT3, p65, miR-21 and miR-146a, which sustains the deregulation of HNF1α in hepatocytes. More interestingly, a coordinated crosstalk between hepatocytes and hepatic stellate cells (HSCs) participates in this positive feedback circuit and facilitates the progression of hepatocellular damage. Our findings demonstrate that impaired hepatocytes play an active role in hepatic fibrogenesis. Early intervention of HNF1α-regulated inflammatory feedback loop in hepatocytes may have beneficial effects in the treatment of chronic liver diseases.
Collapse
|
45
|
Shintani T, Higashi S, Takeuchi Y, Gaudio E, Trapasso F, Fusco A, Noda M. The R3 receptor-like protein tyrosine phosphatase subfamily inhibits insulin signalling by dephosphorylating the insulin receptor at specific sites. J Biochem 2015; 158:235-43. [PMID: 26063811 DOI: 10.1093/jb/mvv045] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 03/19/2015] [Indexed: 12/28/2022] Open
Abstract
The autophosphorylation of specific tyrosine residues occurs in the cytoplasmic region of the insulin receptor (IR) upon insulin binding, and this in turn initiates signal transduction. The R3 subfamily (Ptprb, Ptprh, Ptprj and Ptpro) of receptor-like protein tyrosine phosphatases (RPTPs) is characterized by an extracellular region with 6-17 fibronectin type III-like repeats and a cytoplasmic region with a single phosphatase domain. We herein identified the IR as a substrate for R3 RPTPs by using the substrate-trapping mutants of R3 RPTPs. The co-expression of R3 RPTPs with the IR in HEK293T cells suppressed insulin-induced tyrosine phosphorylation of the IR. In vitro assays using synthetic phosphopeptides revealed that R3 RPTPs preferentially dephosphorylated a particular phosphorylation site of the IR: Y960 in the juxtamembrane region and Y1146 in the activation loop. Among four R3 members, only Ptprj was co-expressed with the IR in major insulin target tissues, such as the skeletal muscle, liver and adipose tissue. Importantly, the activation of IR and Akt by insulin was enhanced, and glucose and insulin tolerance was improved in Ptprj-deficient mice. These results demonstrated Ptprj as a physiological enzyme that attenuates insulin signalling in vivo, and indicate that an inhibitor of Ptprj may be an insulin-sensitizing agent.
Collapse
Affiliation(s)
- Takafumi Shintani
- Division of Molecular Neurobiology, Department of Neurobiology, National Institute for Basic Biology, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, The Graduate University for Advanced Studies (SOKENDAI), Okazaki 444-8787, Japan
| | - Satoru Higashi
- Division of Molecular Neurobiology, Department of Neurobiology, National Institute for Basic Biology, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, The Graduate University for Advanced Studies (SOKENDAI), Okazaki 444-8787, Japan
| | - Yasushi Takeuchi
- Division of Molecular Neurobiology, Department of Neurobiology, National Institute for Basic Biology, Okazaki 444-8787, Japan
| | - Eugenio Gaudio
- Dipartimento di Medicina Sperimentale e Clinica, University Magna Græcia, Campus "S. Venuta", Catanzaro 88100, Italy; and
| | - Francesco Trapasso
- Dipartimento di Medicina Sperimentale e Clinica, University Magna Græcia, Campus "S. Venuta", Catanzaro 88100, Italy; and
| | - Alfredo Fusco
- Istituto di Endocrinologia ed Oncologia Sperimentale del CNR c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Scuola di Medicina e Chirurgia di Napoli, Università degli Studi di Napoli Federico II, Napoli 80138, Italy
| | - Masaharu Noda
- Division of Molecular Neurobiology, Department of Neurobiology, National Institute for Basic Biology, Okazaki 444-8787, Japan; Department of Basic Biology, School of Life Science, The Graduate University for Advanced Studies (SOKENDAI), Okazaki 444-8787, Japan;
| |
Collapse
|
46
|
Caron D, Boutchueng-Djidjou M, Tanguay RM, Faure RL. Annexin A2 is SUMOylated on its N-terminal domain: regulation by insulin. FEBS Lett 2015; 589:985-91. [PMID: 25775977 DOI: 10.1016/j.febslet.2015.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 01/17/2023]
Abstract
Insulin receptor (IR) endocytosis requires a remodelling of the actin cytoskeleton. We show here that ANXA2 is SUMOylated at the K10 located in a non-consensus SUMOylation motif in the N-terminal domain. The Y24F mutation decreased the SUMOylation signal, whereas insulin stimulation increased ANXA2 SUMOylation. A survey of protein SUMOylation in hepatic Golgi/endosome (G/E) fractions after insulin injections revealed the presence of a SUMOylation pattern and confirmed the SUMOylation of ANXA2. The construction of an IR/ANXA2/SUMO network (IRASGEN) in the G/E context reveals the presence of interacting nodes whereby SUMO1 connects ANXA2 to actin and microtubule-mediated changes in membrane topology. Heritable variants associated with type 2 diabetes represent 41% of the IRASGEN thus pointing out the physio-pathological importance of this subnetwork.
Collapse
Affiliation(s)
- Danielle Caron
- Département de Pédiatrie, Laboratoire de biologie cellulaire Centre de recherche du CHU de Québec, Université Laval, Québec, PQ, Canada
| | - Martial Boutchueng-Djidjou
- Département de Pédiatrie, Laboratoire de biologie cellulaire Centre de recherche du CHU de Québec, Université Laval, Québec, PQ, Canada
| | - Robert M Tanguay
- Institut de Biologie Intégrative et des Système (IBIS), Université Laval, Québec, PQ, Canada; Laboratory of Cellular and Developmental Genetics, Department of Molecular Biology, Medical Biochemistry and Pathology, Université Laval, Québec, PQ, Canada; PROTEO, Université Laval, Québec, PQ, Canada
| | - Robert L Faure
- Département de Pédiatrie, Laboratoire de biologie cellulaire Centre de recherche du CHU de Québec, Université Laval, Québec, PQ, Canada.
| |
Collapse
|
47
|
Krüger J, Brachs S, Trappiel M, Kintscher U, Meyborg H, Wellnhofer E, Thöne-Reineke C, Stawowy P, Östman A, Birkenfeld AL, Böhmer FD, Kappert K. Enhanced insulin signaling in density-enhanced phosphatase-1 (DEP-1) knockout mice. Mol Metab 2015; 4:325-36. [PMID: 25830095 PMCID: PMC4354926 DOI: 10.1016/j.molmet.2015.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 01/30/2015] [Accepted: 02/04/2015] [Indexed: 01/06/2023] Open
Abstract
Objective Insulin resistance can be triggered by enhanced dephosphorylation of the insulin receptor or downstream components in the insulin signaling cascade through protein tyrosine phosphatases (PTPs). Downregulating density-enhanced phosphatase-1 (DEP-1) resulted in an improved metabolic status in previous analyses. This phenotype was primarily caused by hepatic DEP-1 reduction. Methods Here we further elucidated the role of DEP-1 in glucose homeostasis by employing a conventional knockout model to explore the specific contribution of DEP-1 in metabolic tissues. Ptprj−/− (DEP-1 deficient) and wild-type C57BL/6 mice were fed a low-fat or high-fat diet. Metabolic phenotyping was combined with analyses of phosphorylation patterns of insulin signaling components. Additionally, experiments with skeletal muscle cells and muscle tissue were performed to assess the role of DEP-1 for glucose uptake. Results High-fat diet fed-Ptprj−/− mice displayed enhanced insulin sensitivity and improved glucose tolerance. Furthermore, leptin levels and blood pressure were reduced in Ptprj−/− mice. DEP-1 deficiency resulted in increased phosphorylation of components of the insulin signaling cascade in liver, skeletal muscle and adipose tissue after insulin challenge. The beneficial effect on glucose homeostasis in vivo was corroborated by increased glucose uptake in skeletal muscle cells in which DEP-1 was downregulated, and in skeletal muscle of Ptprj−/− mice. Conclusion Together, these data establish DEP-1 as novel negative regulator of insulin signaling.
Collapse
Key Words
- DEP-1, density-enhanced phosphatase-1
- Density-enhanced phosphatase-1
- GTT, glucose tolerance test
- Glucose homeostasis
- HFD, high-fat diet
- IL-6, interleukin 6
- IR, insulin receptor
- ITT, insulin tolerance test
- Insulin resistance
- Insulin signaling
- KO, knockout
- LFD, low-fat diet
- MCP-1, monocyte chemotactic protein-1
- PTP, protein tyrosine phosphatase
- Phosphorylation
- RER, respiratory exchange ratio
- RTK, receptor tyrosine kinase
- WT, wild-type
Collapse
Affiliation(s)
- Janine Krüger
- Center for Cardiovascular Research/CCR, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Sebastian Brachs
- Center for Cardiovascular Research/CCR, Department of Endocrinology, Diabetes and Nutrition, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Manuela Trappiel
- Center for Cardiovascular Research/CCR, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Ulrich Kintscher
- Center for Cardiovascular Research/CCR, Institute of Pharmacology, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Heike Meyborg
- Department of Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Ernst Wellnhofer
- Department of Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Christa Thöne-Reineke
- Center for Cardiovascular Research/CCR, Department of Experimental Medicine, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Philipp Stawowy
- Department of Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Arne Östman
- Cancer Center Karolinska, R8:03, Department of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Andreas L Birkenfeld
- Center for Cardiovascular Research/CCR, Department of Endocrinology, Diabetes and Nutrition, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| | - Frank D Böhmer
- Center for Molecular Biomedicine, Institute of Molecular Cell Biology, Universitätsklinikum Jena, Hans-Knöll-Str. 2, 07745 Jena, Germany
| | - Kai Kappert
- Center for Cardiovascular Research/CCR, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Hessische Str. 3-4, 10115 Berlin, Charité - Universitätsmedizin Berlin, Germany
| |
Collapse
|
48
|
Gurzov EN, Stanley WJ, Brodnicki TC, Thomas HE. Protein tyrosine phosphatases: molecular switches in metabolism and diabetes. Trends Endocrinol Metab 2015; 26:30-9. [PMID: 25432462 DOI: 10.1016/j.tem.2014.10.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/28/2014] [Accepted: 10/30/2014] [Indexed: 02/06/2023]
Abstract
Protein tyrosine phosphatases (PTPs) are a large family of enzymes that generally oppose the actions of protein tyrosine kinases (PTKs). Genetic polymorphisms for particular PTPs are associated with altered risk of both type 1 diabetes (T1D) and type 2 diabetes (T2D). Moreover, recent evidence suggests that PTPs play crucial roles in metabolism. They can act as regulators of liver homeostasis, food intake, or immune-mediated pancreatic b cell death. In this review we describe the mechanisms by which different members of the non-receptor PTP (PTPN) family influence metabolic physiology. This 'metabolic job' of PTPs is discussed in depth and the role of these proteins in different cell types compared. Understanding the pathways regulated by PTPs will provide novel therapeutic strategies for the treatment of diabetes.
Collapse
|
49
|
Denhez B, Lizotte F, Guimond MO, Jones N, Takano T, Geraldes P. Increased SHP-1 protein expression by high glucose levels reduces nephrin phosphorylation in podocytes. J Biol Chem 2014; 290:350-8. [PMID: 25404734 DOI: 10.1074/jbc.m114.612721] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Nephrin, a critical podocyte membrane component that is reduced in diabetic nephropathy, has been shown to activate phosphotyrosine signaling pathways in human podocytes. Nephrin signaling is important to reduce cell death induced by apoptotic stimuli. We have shown previously that high glucose level exposure and diabetes increased the expression of SHP-1, causing podocyte apoptosis. SHP-1 possesses two Src homology 2 domains that serve as docking elements to dephosphorylate tyrosine residues of target proteins. However, it remains unknown whether SHP-1 interacts with nephrin and whether its elevated expression affects the nephrin phosphorylation state in diabetes. Here we show that human podocytes exposed to high glucose levels exhibited elevated expression of SHP-1, which was associated with nephrin. Coexpression of nephrin-CD16 and SHP-1 reduced nephrin tyrosine phosphorylation in transfected human embryonic kidney 293 cells. A single tyrosine-to-phenylalanine mutation revealed that rat nephrin Tyr(1127) and Tyr(1152) are required to allow SHP-1 interaction with nephrin. Overexpression of dominant negative SHP-1 in human podocytes prevented high glucose-induced reduction of nephrin phosphorylation. In vivo, immunoblot analysis demonstrated that nephrin expression and phosphorylation were decreased in glomeruli of type 1 diabetic Akita mice (Ins2(+/C96Y)) compared with control littermate mice (Ins2(+/+)), and this was associated with elevated SHP-1 and cleaved caspase-3 expression. Furthermore, immunofluorescence analysis indicated increased colocalization of SHP-1 with nephrin in diabetic mice compared with control littermates. In conclusion, our results demonstrate that high glucose exposure increases SHP-1 interaction with nephrin, causing decreased nephrin phosphorylation, which may, in turn, contribute to diabetic nephropathy.
Collapse
Affiliation(s)
- Benoit Denhez
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke and Division of Endocrinology, Departments of Medicine, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada
| | - Farah Lizotte
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke and Division of Endocrinology, Departments of Medicine, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada
| | - Marie-Odile Guimond
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke and Division of Endocrinology, Departments of Medicine, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada
| | - Nina Jones
- the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada, and
| | - Tomoko Takano
- the McGill University Health Center, Montreal, Québec H3H 2R9, Canada
| | - Pedro Geraldes
- From the Research Center of the Centre Hospitalier Universitaire de Sherbrooke and Division of Endocrinology, Departments of Medicine, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada,
| |
Collapse
|
50
|
Prostate anatomy in motheaten viable (me(v)) mice with mutations in the protein tyrosine phosphatase SHP-1. Actas Urol Esp 2014; 38:438-44. [PMID: 24819344 DOI: 10.1016/j.acuro.2014.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/06/2014] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To study prostate and seminal vesicle anatomy in viable motheaten (mev) with mutations in PTPN6 gene leading to a severe reduction in the activity of protein tyrosine phosphatase SHP-1. Homozygous mev mice exhibit multiple anomalies that include immunodeficiencies, increased proliferation of macrophage, neutrophil, and erythrocyte progenitors, decreased bone density and sterility. MATERIAL AND METHOD We analyzed macro- and microscopic anatomy of the seminal vesicle and prostate macro- and microscopic anatomy of 5 mev/mev and 8 wt/wt adult 7 week old mice. Computerized morphometric analysis was performed to measure the relative changes appearing in the epithelial volume of the different prostatic lobes. RESULTS All mice studied revealed normal genital organs (penis, testis, epididymis, vas deferens) and bladder. The seminal vesicle was absent in all mev/mev individuals analyzed, being normal and very noticeable in wt/wt mice. The different glands that compose the prostatic complex (anterior, ventral and dorso-lateral prostate) were atrophied in mev/mev mice: anterior prostate 0.4 times, ventral 0.19 times, dorsal 0.35 times and lateral 0.28 times those of the respective regions in wt/wt mice. Microscopically, mev/mev mice revealed scarce and large prostatic ducts, acini severely atrophic with empty lumen and scarce loose epithelial component forming tufts and infoldings, and hyperplastic changes in fibromuscular stroma. CONCLUSIONS The prostate of mev/mev mice exhibits signs of aberrant differentiation and the resulting phenotype may be related to the loss of function of SHP-1. Prostatic anomalies in these mice affect, together with defects in sperm maduration, for their sterility. These data suggest SHP-1 plays an important role in prostate epithelial morphogenesis.
Collapse
|