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Triantaphyllopoulos KA. Long Non-Coding RNAs and Their "Discrete" Contribution to IBD and Johne's Disease-What Stands out in the Current Picture? A Comprehensive Review. Int J Mol Sci 2023; 24:13566. [PMID: 37686376 PMCID: PMC10487966 DOI: 10.3390/ijms241713566] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/23/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Non-coding RNAs (ncRNA) have paved the way to new perspectives on the regulation of gene expression, not only in biology and medicine, but also in associated fields and technologies, ensuring advances in diagnostic means and therapeutic modalities. Critical in this multistep approach are the associations of long non-coding RNA (lncRNA) with diseases and their causal genes in their networks of interactions, gene enrichment and expression analysis, associated pathways, the monitoring of the involved genes and their functional roles during disease progression from one stage to another. Studies have shown that Johne's Disease (JD), caused by Mycobacterium avium subspecies partuberculosis (MAP), shares common lncRNAs, clinical findings, and other molecular entities with Crohn's Disease (CD). This has been a subject of vigorous investigation owing to the zoonotic nature of this condition, although results are still inconclusive. In this review, on one hand, the current knowledge of lncRNAs in cells is presented, focusing on the pathogenesis of gastrointestinal-related pathologies and MAP-related infections and, on the other hand, we attempt to dissect the associated genes and pathways involved. Furthermore, the recently characterized and novel lncRNAs share common pathologies with IBD and JD, including the expression, molecular networks, and dataset analysis results. These are also presented in an attempt to identify potential biomarkers pertinent to cattle and human disease phenotypes.
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Affiliation(s)
- Kostas A Triantaphyllopoulos
- Department of Biotechnology, School of Applied Biology and Biotechnology, Agricultural University of Athens, 75 Iera Odos St., 11855 Athens, Greece
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2
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Huang Q, Yang Y, Zhu Y, Chen Q, Zhao T, Xiao Z, Wang M, Song X, Jiang Y, Yang Y, Zhang J, Xiao Y, Nan Y, Wu W, Ai K. Oral Metal-Free Melanin Nanozymes for Natural and Durable Targeted Treatment of Inflammatory Bowel Disease (IBD). SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207350. [PMID: 36760016 DOI: 10.1002/smll.202207350] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/10/2023] [Indexed: 05/11/2023]
Abstract
Oral antioxidant nanozymes bring great promise for inflammatory bowel disease (IBD) treatment. To efficiently eliminate reactive oxygen species (ROS), various metal-based nanozymes have been developed for the treatment of IBD but their practical applications are seriously impaired by unstable ROS-eliminating properties and potential metal ion leakage in the digestive tract. Here, the authors for the first time propose metal-free melanin nanozymes (MeNPs) with excellent gastrointestinal stability and biocompatibility as a favorable therapy strategy for IBD. Moreover, MeNPs have extremely excellent natural and long-lasting characteristics of targeting IBD lesions. In view of the dominant role of ROS in IBD, the authors further reveal that oral administration of MeNPs can greatly alleviate the six major pathological features of IBD: oxidative stress, endoplasmic reticulum stress, apoptosis, inflammation, gut barrier disruption, and gut dysbiosis. Overall, this strategy highlights the great clinical application prospects of metal-free MeNPs via harnessing ROS scavenging at IBD lesions, offering a paradigm for antioxidant nanozyme in IBD or other inflammatory diseases.
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Affiliation(s)
- Qiong Huang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yuqi Yang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yan Zhu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Qiaohui Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Tianjiao Zhao
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Zuoxiu Xiao
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Mingyuan Wang
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Xiangping Song
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yitian Jiang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Yunrong Yang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jinping Zhang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yang Xiao
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Diseases, The Second Xiangya Hospital, Central South University, Changsha, 410078, China
- Key Laboratory of Diabetes Immunology, Ministry of Education, The Second Xiangya Hospital, Central South University, Changsha, 410078, China
| | - Yayun Nan
- Geriatric Medical Center, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750002, China
| | - Wei Wu
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Department of Geriatric Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Kelong Ai
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
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3
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Targeting protein phosphatases in cancer immunotherapy and autoimmune disorders. Nat Rev Drug Discov 2023; 22:273-294. [PMID: 36693907 PMCID: PMC9872771 DOI: 10.1038/s41573-022-00618-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2022] [Indexed: 01/25/2023]
Abstract
Protein phosphatases act as key regulators of multiple important cellular processes and are attractive therapeutic targets for various diseases. Although extensive effort has been dedicated to phosphatase-targeted drug discovery, early expeditions for competitive phosphatase inhibitors were plagued by druggability issues, leading to the stigmatization of phosphatases as difficult targets. Despite challenges, persistent efforts have led to the identification of several drug-like, non-competitive modulators of some of these enzymes - including SH2 domain-containing protein tyrosine phosphatase 2, protein tyrosine phosphatase 1B, vascular endothelial protein tyrosine phosphatase and protein phosphatase 1 - reigniting interest in therapeutic targeting of phosphatases. Here, we discuss recent progress in phosphatase drug discovery, with emphasis on the development of selective modulators that exhibit biological activity. The roles and regulation of protein phosphatases in immune cells and their potential as powerful targets for immuno-oncology and autoimmunity indications are assessed.
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4
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Maternal stevioside supplementation improves intestinal immune function of chicken offspring potentially via modulating gut microbiota and down-regulating the promoter methylation level of suppressor of cytokine signaling 1 (SOCS1). ANIMAL NUTRITION 2022; 10:329-346. [PMID: 35919247 PMCID: PMC9307571 DOI: 10.1016/j.aninu.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 01/18/2022] [Accepted: 06/09/2022] [Indexed: 11/21/2022]
Abstract
The intestinal immune function of chickens is limited during the early growing stage. Maternal nutritional intervention has been suggested to affect the innate immunity of offspring. The present study aimed to investigate the effects of maternal stevioside supplementation on the intestinal immune function of chicken offspring. A total of 120 Jinmao yellow-feathered breeder hens were fed a basal diet or a diet supplemented with 250 mg/kg stevioside for 5 weeks. During the last week, 200 breeding eggs from each group were collected for incubation. After hatching, 80 male offspring (40 chickens from each group) were randomly selected and fed the same basal diet for 28 d. In addition, 90 well-shaped fertile eggs of non-treated breeder hens were incubated for the in ovo injection experiment. Steviol dissolved in 20% glycerol was injected at 7 d of incubation. The results showed that maternal stevioside supplementation could improve embryonic development, jejunal integrity and proliferation in the jejunal crypt (P < 0.05). Maternal stevioside supplementation could also increase the innate transcription levels of cytokines and endotoxin tolerance-related factors in the jejunum of chicken offspring (P < 0.05). At 28 d of age, the offspring following maternal stevioside supplementation exhibited higher jejunal secretory immunoglobulin A and serum interferons levels (P < 0.05). A higher abundance of Lactobacillales induced by maternal stevioside supplementation was positively correlated with intestinal immune-related factors (P < 0.05). The in ovo injection with steviol did not alter either embryonic development or intestinal immune function of hatching chickens (P > 0.05). Furthermore, maternal stevioside supplementation could induce hypo-methylation on the promoter region of suppressor of cytokine signaling 1 (SOCS1). In conclusion, maternal stevioside supplementation could improve the intestinal immune function of chicken offspring potentially via modulating the gut microbiota and down-regulating the promoter methylation level of SOCS1.
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5
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Zhu P, Yan X, Jiang X, Li H, Chen R, Wang S, Li C. The MRE11 opposes white spot syndrome virus infection through the IRF and Dorsal mediated antiviral pathways in shrimp. FISH & SHELLFISH IMMUNOLOGY 2022; 126:347-356. [PMID: 35654385 DOI: 10.1016/j.fsi.2022.05.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/10/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Meiotic recombination 11 (MRE11), a key component of the MRE11-RAD50-NBS1 (MRN) complex, plays important roles in damaged DNA repair and immune response. In this study, we described the molecular cloning of a new member of MRE11 from Litopenaeus vannamei named as LvMRE11. The full length of LvMRE11 was 2999 bp, including a 1947 bp open reading frame (ORF) that encoded a putative protein of 648 amino acids with a calculated molecular weight of ∼73.2 kDa LvMRE11 was universally expressed in all tested tissues and its expression in intestine was responsive to the challenge of white spot syndrome virus (WSSV), poly (I: C), poly [dA:dT], CpG-ODN 2006 and IFN stimulatory DNA (ISD). The dsRNA-mediated knockdown of LvMRE11 enhanced the susceptibility of shrimps to WSSV infection, as manifested by a higher mortality and viral loads observed in LvMRE11 silenced shrimps. Besides, silencing of LvMRE11 resulted in decreased expression levels of IRF-Vago-JAK/STAT pathway components, and Dorsal but not the Relish, as well as several antimicrobial peptides (AMPs). In conclusion, we provided some evidences that the involvement of LvMRE11 in innate immune against virus infection probably through regulating the IRF and Dorsal mediated antiviral pathways.
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Affiliation(s)
- Peng Zhu
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gluf University, Qinzhou, Guangxi, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)/State Key Laboratory of Biocontrol, School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Xuheng Yan
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)/State Key Laboratory of Biocontrol, School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Xiewu Jiang
- Guangdong Hisenor Group Co., Ltd, Guangzhou, PR China
| | - Hui Li
- Guangdong Hisenor Group Co., Ltd, Guangzhou, PR China
| | - Rongjian Chen
- Guangdong Hisenor Group Co., Ltd, Guangzhou, PR China
| | - Sheng Wang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)/State Key Laboratory of Biocontrol, School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China.
| | - Chaozheng Li
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gluf University, Qinzhou, Guangxi, PR China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)/State Key Laboratory of Biocontrol, School of Marine Sciences, Sun Yat-sen University, Guangzhou, PR China.
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6
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The catalytic activity of TCPTP is auto-regulated by its intrinsically disordered tail and activated by Integrin alpha-1. Nat Commun 2022; 13:94. [PMID: 35013194 PMCID: PMC8748766 DOI: 10.1038/s41467-021-27633-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/29/2021] [Indexed: 11/08/2022] Open
Abstract
T-Cell Protein Tyrosine Phosphatase (TCPTP, PTPN2) is a non-receptor type protein tyrosine phosphatase that is ubiquitously expressed in human cells. TCPTP is a critical component of a variety of key signaling pathways that are directly associated with the formation of cancer and inflammation. Thus, understanding the molecular mechanism of TCPTP activation and regulation is essential for the development of TCPTP therapeutics. Under basal conditions, TCPTP is largely inactive, although how this is achieved is poorly understood. By combining biomolecular nuclear magnetic resonance spectroscopy, small-angle X-ray scattering, and chemical cross-linking coupled with mass spectrometry, we show that the C-terminal intrinsically disordered tail of TCPTP functions as an intramolecular autoinhibitory element that controls the TCPTP catalytic activity. Activation of TCPTP is achieved by cellular competition, i.e., the intrinsically disordered cytosolic tail of Integrin-α1 displaces the TCPTP autoinhibitory tail, allowing for the full activation of TCPTP. This work not only defines the mechanism by which TCPTP is regulated but also reveals that the intrinsically disordered tails of two of the most closely related PTPs (PTP1B and TCPTP) autoregulate the activity of their cognate PTPs via completely different mechanisms.
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7
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Singh JP, Lin MJ, Hsu SF, Peti W, Lee CC, Meng TC. Crystal Structure of TCPTP Unravels an Allosteric Regulatory Role of Helix α7 in Phosphatase Activity. Biochemistry 2021; 60:3856-3867. [PMID: 34910875 DOI: 10.1021/acs.biochem.1c00519] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The T-cell protein tyrosine phosphatase (TCPTP/PTPN2) targets a broad variety of substrates across different subcellular compartments. In spite of that, the structural basis for the regulation of TCPTP's activity remains elusive. Here, we investigated whether the activity of TCPTP is regulated by a potential allosteric site in a comparable manner to its most similar PTP family member (PTP1B/PTPN1). We determined two crystal structures of TCPTP at 1.7 and 1.9 Å resolutions that include helix α7 at the TCPTP C-terminus. Helix α7 has been functionally characterized in PTP1B and was identified as its allosteric switch. However, its function is unknown in TCPTP. Here, we demonstrate that truncation or deletion of helix α7 reduced the catalytic efficiency of TCPTP by ∼4-fold. Collectively, our data supports an allosteric role of helix α7 in regulation of TCPTP's activity, similar to its function in PTP1B, and highlights that the coordination of helix α7 with the core catalytic domain is essential for the efficient catalytic function of TCPTP.
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Affiliation(s)
- Jai Prakash Singh
- Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan.,Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan.,Department of Chemistry, National Tsing Hua University, 101, Kuang-Fu Road, Sec. 2, Hsinchu 300, Taiwan
| | - Meng-Jung Lin
- Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan
| | - Shu-Fang Hsu
- Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan
| | - Wolfgang Peti
- Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, Connecticut 06030, United States
| | - Cheng-Chung Lee
- Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan
| | - Tzu-Ching Meng
- Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan.,Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, 1 Roosevelt Road Sec. 4, Taipei 106, Taiwan
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8
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Chen Q, Gao C, Wang M, Fei X, Zhao N. TRIM18-Regulated STAT3 Signaling Pathway via PTP1B Promotes Renal Epithelial-Mesenchymal Transition, Inflammation, and Fibrosis in Diabetic Kidney Disease. Front Physiol 2021; 12:709506. [PMID: 34434118 PMCID: PMC8381599 DOI: 10.3389/fphys.2021.709506] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/15/2021] [Indexed: 01/15/2023] Open
Abstract
Diabetic kidney disease (DKD) has become a key cause of end-stage renal disease worldwide. Inflammation and fibrosis have been shown to play important roles in the pathogenesis of DKD. MID1, also known as TRIM18, is an E3 ubiquitin ligase of the tripartite motif (TRIM) subfamily of RING-containing proteins and increased in renal tubule in patients with DKD. However, the function and molecular mechanism of TRIM18 in DKD remain unexplored. Herein we report that TRIM18 expression levels were increased in patients with DKD. An animal study confirms that TRIM18 is involved in kidney injury and fibrosis in diabetic mice. TRIM18 knockdown inhibits high glucose (HG)-induced epithelial–mesenchymal transition (EMT), inflammation, and fibrosis of HK-2 cells. This is accompanied by decreased levels of tumor necrosis factor alpha, interleukin-6, hydroxyproline (Hyp), connective tissue growth factor, and α-smooth muscle actin. Additionally, TRIM18 knockdown inhibits HG-induced increase in the phosphorylated-/total signal transducer and activator of transcription (STAT3). Treatment with niclosamide (STAT3 inhibitor) or protein tyrosine phosphatase-1B (PTP1B) overexpression blocked the TRIM18 induced EMT, inflammation and fibrosis. Co-immunoprecipitation and Western blot assays showed that TRIM18 promoted the ubiquitination of PTP1B. These findings highlight the importance of the TRIM18/PTP1B/STAT3 signaling pathway in DKD and can help in the development of new therapeutics for DKD treatment.
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Affiliation(s)
- Qi Chen
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chan Gao
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ming Wang
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao Fei
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ning Zhao
- Department of Nephrology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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9
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Hsieh WC, Svensson MN, Zoccheddu M, Tremblay ML, Sakaguchi S, Stanford SM, Bottini N. PTPN2 links colonic and joint inflammation in experimental autoimmune arthritis. JCI Insight 2020; 5:141868. [PMID: 33055428 PMCID: PMC7605542 DOI: 10.1172/jci.insight.141868] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/09/2020] [Indexed: 12/28/2022] Open
Abstract
Loss-of-function variants of protein tyrosine phosphatase non-receptor type 2 (PTPN2) enhance risk of inflammatory bowel disease and rheumatoid arthritis; however, whether the association between PTPN2 and autoimmune arthritis depends on gut inflammation is unknown. Here we demonstrate that induction of subclinical intestinal inflammation exacerbates development of autoimmune arthritis in SKG mice. Ptpn2-haploinsufficient SKG mice — modeling human carriers of disease-associated variants of PTPN2 — displayed enhanced colitis-induced arthritis and joint accumulation of Tregs expressing RAR-related orphan receptor γT (RORγt) — a gut-enriched Treg subset that can undergo conversion into FoxP3–IL-17+ arthritogenic exTregs. SKG colonic Tregs underwent higher conversion into arthritogenic exTregs when compared with peripheral Tregs, which was exacerbated by haploinsufficiency of Ptpn2. Ptpn2 haploinsufficiency led to selective joint accumulation of RORγt-expressing Tregs expressing the colonic marker G protein–coupled receptor 15 (GPR15) in arthritic mice and selectively enhanced conversion of GPR15+ Tregs into exTregs in vitro and in vivo. Inducible Treg-specific haploinsufficiency of Ptpn2 enhanced colitis-induced SKG arthritis and led to specific joint accumulation of GPR15+ exTregs. Our data validate the SKG model for studies at the interface between intestinal and joint inflammation and suggest that arthritogenic variants of PTPN2 amplify the link between gut inflammation and arthritis through conversion of colonic Tregs into exTregs. Loss of protein tyrosine phosphatase non-receptor type 2 amplifies the link between gut and joint inflammation through conversion of colonic Tregs into arthritogenic exTregs.
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Affiliation(s)
- Wan-Chen Hsieh
- Department of Medicine, UCSD School of Medicine, La Jolla, California, USA
| | - Mattias Nd Svensson
- Department of Medicine, UCSD School of Medicine, La Jolla, California, USA.,Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Martina Zoccheddu
- Department of Medicine, UCSD School of Medicine, La Jolla, California, USA
| | - Michael L Tremblay
- Rosalind and Morris Goodman Cancer Research Centre.,Department of Biochemistry, and.,Division of Experimental Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montréal, Québec, Canada
| | - Shimon Sakaguchi
- Laboratory of Experimental Immunology, Immunology Frontier Research Center, Osaka University, Suita, Japan.,Department of Experimental Pathology, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | | | - Nunzio Bottini
- Department of Medicine, UCSD School of Medicine, La Jolla, California, USA
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10
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Morales LD, Archbold AK, Olivarez S, Slaga TJ, DiGiovanni J, Kim DJ. The role of T-cell protein tyrosine phosphatase in epithelial carcinogenesis. Mol Carcinog 2019; 58:1640-1647. [PMID: 31264291 PMCID: PMC6692238 DOI: 10.1002/mc.23078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
Abstract
T-cell protein tyrosine phosphatase (TC-PTP, encoded by PTPN2) is a nonreceptor PTP that is most highly expressed in hematopoietic tissues. TC-PTP modulates a variety of physiological functions including cell cycle progression, cell survival and proliferation, and hematopoiesis through tyrosine dephosphorylation of its target substrates, such as EGFR, JAK1, JAK3, STAT1, and STAT3. Studies with whole or tissue-specific loss of TC-PTP function transgenic mice have shown that TC-PTP has crucial roles in the regulation of the immune response, insulin signaling, and oncogenic signaling. More recently, the generation of epidermal-specific TC-PTP-deficient mice for use in multistage skin carcinogenesis bioassays demonstrated that TC-PTP suppresses skin tumor formation by negatively regulating STAT3 and AKT signaling. Further investigation showed that TC-PTP also minimizes UVB-induced epidermal cell damage by promoting apoptosis through the negative regulation of Flk-1/JNK signaling. These findings provide major evidence for a tumor suppressive function for TC-PTP against environment-induced skin cancer. Here, we will discuss TC-PTP, its substrates, and its functions with an emphasis on its role in skin carcinogenesis.
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Affiliation(s)
- Liza D. Morales
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
- South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Anna K. Archbold
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Serena Olivarez
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Thomas J. Slaga
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX
| | - John DiGiovanni
- Division of Pharmacology & Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78723, USA
| | - Dae Joon Kim
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
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11
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Svensson MN, Doody KM, Schmiedel BJ, Bhattacharyya S, Panwar B, Wiede F, Yang S, Santelli E, Wu DJ, Sacchetti C, Gujar R, Seumois G, Kiosses WB, Aubry I, Kim G, Mydel P, Sakaguchi S, Kronenberg M, Tiganis T, Tremblay ML, Ay F, Vijayanand P, Bottini N. Reduced expression of phosphatase PTPN2 promotes pathogenic conversion of Tregs in autoimmunity. J Clin Invest 2019; 129:1193-1210. [PMID: 30620725 DOI: 10.1172/jci123267] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 01/03/2019] [Indexed: 12/29/2022] Open
Abstract
Genetic variants at the PTPN2 locus, which encodes the tyrosine phosphatase PTPN2, cause reduced gene expression and are linked to rheumatoid arthritis (RA) and other autoimmune diseases. PTPN2 inhibits signaling through the T cell and cytokine receptors, and loss of PTPN2 promotes T cell expansion and CD4- and CD8-driven autoimmunity. However, it remains unknown whether loss of PTPN2 in FoxP3+ regulatory T cells (Tregs) plays a role in autoimmunity. Here we aimed to model human autoimmune-predisposing PTPN2 variants, the presence of which results in a partial loss of PTPN2 expression, in mouse models of RA. We identified that reduced expression of Ptpn2 enhanced the severity of autoimmune arthritis in the T cell-dependent SKG mouse model and demonstrated that this phenotype was mediated through a Treg-intrinsic mechanism. Mechanistically, we found that through dephosphorylation of STAT3, PTPN2 inhibits IL-6-driven pathogenic loss of FoxP3 after Tregs have acquired RORγt expression, at a stage when chromatin accessibility for STAT3-targeted IL-17-associated transcription factors is maximized. We conclude that PTPN2 promotes FoxP3 stability in mouse RORγt+ Tregs and that loss of function of PTPN2 in Tregs contributes to the association between PTPN2 and autoimmunity.
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Affiliation(s)
- Mattias Nd Svensson
- Department of Medicine, University of California, San Diego, La Jolla, California, USA.,Division of Cellular Biology, and
| | | | - Benjamin J Schmiedel
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Sourya Bhattacharyya
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Bharat Panwar
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Florian Wiede
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Shen Yang
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Eugenio Santelli
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Dennis J Wu
- Department of Medicine, University of California, San Diego, La Jolla, California, USA.,Division of Cellular Biology, and
| | - Cristiano Sacchetti
- Department of Medicine, University of California, San Diego, La Jolla, California, USA.,Division of Cellular Biology, and
| | - Ravindra Gujar
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Gregory Seumois
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - William B Kiosses
- Core Microscopy, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Isabelle Aubry
- Department of Biochemistry, McGill University, Montréal, Quebec, Canada
| | - Gisen Kim
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Piotr Mydel
- Clinical Science, Broegelmann Research Laboratory, Bergen, Norway.,Department of Microbiology, Jagiellonian University, Krakow, Poland
| | - Shimon Sakaguchi
- Laboratory of Experimental Immunology, Immunology Frontier Research Center, Osaka University, Suita, Japan.,Department of Experimental Pathology, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Mitchell Kronenberg
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Tony Tiganis
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Monash Biomedicine Discovery Institute, and.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Michel L Tremblay
- Department of Biochemistry, McGill University, Montréal, Quebec, Canada
| | - Ferhat Ay
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Pandurangan Vijayanand
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, USA
| | - Nunzio Bottini
- Department of Medicine, University of California, San Diego, La Jolla, California, USA.,Division of Cellular Biology, and
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12
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Chen W, Zhuo M, Lu X, Xia X, Zhao Y, Huang Z, Xu J, Li W, Yu C. SRC-3 protects intestine from DSS-induced colitis by inhibiting inflammation and promoting goblet cell differentiation through enhancement of KLF4 expression. Int J Biol Sci 2018; 14:2051-2064. [PMID: 30585268 PMCID: PMC6299374 DOI: 10.7150/ijbs.28576] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023] Open
Abstract
Goblet cell loss, which leads to the reduction of mucin secretion, is a hallmark of ulcerative colitis (UC). We previously reported that steroid receptor coactivator 3 (SRC-3), a transcriptional coactivator, contributes to host defense against Citrobacter rodentium by recruiting neutrophils, suggesting a role of SRC-3 in intestine homeostasis. However, the biological role of SRC-3 in UC remains unclear. Here, we showed that SRC-3-/- mice were more susceptible to dextran sulfate sodium (DSS)-induced colitis compared with wild-type mice after oral administration of 2% DSS dissolved in drinking water. After oral administration of 2% DSS, SRC-3-/- mice displayed higher mortality rate, significant body weight loss, and higher clinical symptom scores compared to wild-type mice. SRC-3-/- mice suffered a severe loss of mature colonic goblet cells, leading to more severe histopathology and more proinflammatory cytokine production. Mechanistically, SRC-3-/- mice exhibited a decreased expression of transcription factor KLF4 in the colons, which is responsible for colonic goblet cell differentiation and maturation. At the molecular level, SRC-3 cooperated with c-Fos to promote KLF4 expression at the transcriptional level. These results demonstrate that SRC-3 can ameliorate DSS-induced colitis by inhibiting inflammation and promoting colonic goblet cell differentiation and maturation through enhancing the expression of transcriptional factor KLF4, which is responsible for colonic goblet cell differentiation and maturation.
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Affiliation(s)
- Wenbo Chen
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, China.,State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Minghui Zhuo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Xuqiang Lu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Xiaochun Xia
- Xiamen Medical College, Xiamen Fujian 361023,China
| | - Yang Zhao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Zhengrong Huang
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - Weihua Li
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Chundong Yu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
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13
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Protein Tyrosine Phosphatases as Potential Regulators of STAT3 Signaling. Int J Mol Sci 2018; 19:ijms19092708. [PMID: 30208623 PMCID: PMC6164089 DOI: 10.3390/ijms19092708] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/29/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023] Open
Abstract
The signal transducer and activator of transcription 3 (STAT3) protein is a major transcription factor involved in many cellular processes, such as cell growth and proliferation, differentiation, migration, and cell death or cell apoptosis. It is activated in response to a variety of extracellular stimuli including cytokines and growth factors. The aberrant activation of STAT3 contributes to several human diseases, particularly cancer. Consequently, STAT3-mediated signaling continues to be extensively studied in order to identify potential targets for the development of new and more effective clinical therapeutics. STAT3 activation can be regulated, either positively or negatively, by different posttranslational mechanisms including serine or tyrosine phosphorylation/dephosphorylation, acetylation, or demethylation. One of the major mechanisms that negatively regulates STAT3 activation is dephosphorylation of the tyrosine residue essential for its activation by protein tyrosine phosphatases (PTPs). There are seven PTPs that have been shown to dephosphorylate STAT3 and, thereby, regulate STAT3 signaling: PTP receptor-type D (PTPRD), PTP receptor-type T (PTPRT), PTP receptor-type K (PTPRK), Src homology region 2 (SH-2) domain-containing phosphatase 1(SHP1), SH-2 domain-containing phosphatase 2 (SHP2), MEG2/PTP non-receptor type 9 (PTPN9), and T-cell PTP (TC-PTP)/PTP non-receptor type 2 (PTPN2). These regulators have great potential as targets for the development of more effective therapies against human disease, including cancer.
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14
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Penafuerte C, Feldhammer M, Mills JR, Vinette V, Pike KA, Hall A, Migon E, Karsenty G, Pelletier J, Zogopoulos G, Tremblay ML. Downregulation of PTP1B and TC-PTP phosphatases potentiate dendritic cell-based immunotherapy through IL-12/IFNγ signaling. Oncoimmunology 2017; 6:e1321185. [PMID: 28680757 PMCID: PMC5486178 DOI: 10.1080/2162402x.2017.1321185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/16/2017] [Accepted: 04/17/2017] [Indexed: 12/28/2022] Open
Abstract
PTP1B and TC-PTP are highly related protein-tyrosine phosphatases (PTPs) that regulate the JAK/STAT signaling cascade essential for cytokine-receptor activation in immune cells. Here, we describe a novel immunotherapy approach whereby monocyte-derived dendritic cell (moDC) function is enhanced by modulating the enzymatic activities of PTP1B and TC-PTP. To downregulate or delete the activity/expression of these PTPs, we generated mice with PTP-specific deletions in the dendritic cell compartment or used PTP1B and TC-PTP specific inhibitor. While total ablation of PTP1B or TC-PTP expression leads to tolerogenic DCs via STAT3 hyperactivation, downregulation of either phosphatase remarkably shifts the balance toward an immunogenic DC phenotype due to hyperactivation of STAT4, STAT1 and Src kinase. The resulting increase in IL-12 and IFNγ production subsequently amplifies the IL-12/STAT4/IFNγ/STAT1/IL-12 positive autocrine loop and enhances the therapeutic potential of mature moDCs in tumor-bearing mice. Furthermore, pharmacological inhibition of both PTPs improves the maturation of defective moDCs derived from pancreatic cancer (PaC) patients. Our study provides a new advance in the use of DC-based cancer immunotherapy that is complementary to current cancer therapeutics.
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Affiliation(s)
| | - Matthew Feldhammer
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - John R Mills
- Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - Valerie Vinette
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - Kelly A Pike
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| | - Anita Hall
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,McGill University Health Centre-Research Institute, MUHC-RI, Montreal, QC, Canada
| | - Eva Migon
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| | | | - Jerry Pelletier
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,Department of Biochemistry, McGill University, Montreal, QC, Canada
| | - George Zogopoulos
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,McGill University Health Centre-Research Institute, MUHC-RI, Montreal, QC, Canada
| | - Michel L Tremblay
- Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.,Department of Biochemistry, McGill University, Montreal, QC, Canada
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