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Ashiqueali SA, Schneider A, Zhu X, Juszczyk E, Mansoor MAM, Zhu Y, Fang Y, Zanini BM, Garcia DN, Hayslip N, Medina D, McFadden S, Stockwell R, Yuan R, Bartke A, Zasloff M, Siddiqi S, Masternak MM. Early life interventions metformin and trodusquemine metabolically reprogram the developing mouse liver through transcriptomic alterations. Aging Cell 2024:e14227. [PMID: 38798180 DOI: 10.1111/acel.14227] [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: 01/23/2024] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/29/2024] Open
Abstract
Recent studies have demonstrated the remarkable potential of early life intervention strategies at influencing the course of postnatal development, thereby offering exciting possibilities for enhancing longevity and improving overall health. Metformin (MF), an FDA-approved medication for type II diabetes mellitus, has recently gained attention for its promising anti-aging properties, acting as a calorie restriction mimetic, and delaying precocious puberty. Additionally, trodusquemine (MSI-1436), an investigational drug, has been shown to combat obesity and metabolic disorders by inhibiting the enzyme protein tyrosine phosphatase 1b (Ptp1b), consequently reducing hepatic lipogenesis and counteracting insulin and leptin resistance. In this study, we aimed to further explore the effects of these compounds on young, developing mice to uncover biomolecular signatures that are central to liver metabolic processes. We found that MSI-1436 more potently alters mRNA and miRNA expression in the liver compared with MF, with bioinformatic analysis suggesting that cohorts of differentially expressed miRNAs inhibit the action of phosphoinositide 3-kinase (Pi3k), protein kinase B (Akt), and mammalian target of rapamycin (Mtor) to regulate the downstream processes of de novo lipogenesis, fatty acid oxidation, very-low-density lipoprotein transport, and cholesterol biosynthesis and efflux. In summary, our study demonstrates that administering these compounds during the postnatal window metabolically reprograms the liver through induction of potent epigenetic changes in the transcriptome, potentially forestalling the onset of age-related diseases and enhancing longevity. Future studies are necessary to determine the impacts on lifespan and overall quality of life.
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Affiliation(s)
- Sarah A Ashiqueali
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - Augusto Schneider
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Xiang Zhu
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - Ewelina Juszczyk
- Research & Development Center, Celon Pharma S.A., Kazun Nowy, Poland
| | - Mishfak A M Mansoor
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - Yun Zhu
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Yimin Fang
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Bianka M Zanini
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Driele N Garcia
- Faculdade de Nutrição, Universidade Federal de Pelotas, Pelotas, Brazil
| | - Natalie Hayslip
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - David Medina
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Samuel McFadden
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Robert Stockwell
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Rong Yuan
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Michael Zasloff
- MedStar Georgetown Transplant Institute, Georgetown University School of Medicine, Washington, DC, USA
| | - Shadab Siddiqi
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
| | - Michal M Masternak
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, Orlando, Florida, USA
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland
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Zhao W, Yang H, Cui H, Li W, Xing S, Han W. Elucidating the structural basis of vitamin B 12 derivatives as novel potent inhibitors of PTP1B: Insights from inhibitory mechanisms using Gaussian accelerated molecular dynamics (GaMD) and in vitro study. Int J Biol Macromol 2024; 268:131902. [PMID: 38692532 DOI: 10.1016/j.ijbiomac.2024.131902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 04/19/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Vitamin B12 is a group of biologically active cobalamin compounds. In this study, we investigated the inhibitory effects of methylcobalamin (MeCbl) and hydroxocobalamin acetate (OHCbl Acetate) on protein tyrosine phosphatase 1B (PTP1B). MeCbl and OHCbl Acetate exhibited an IC50 of approximately 58.390 ± 2.811 μM and 8.998 ± 0.587 μM, respectively. The Ki values of MeCbl and OHCbl Acetate were 25.01 μM and 4.04 μM respectively. To elucidate the inhibition mechanism, we conducted a 500 ns Gaussian accelerated molecular dynamics (GaMD) simulation. Utilizing PCA and tICA, we constructed Markov state models (MSM) to examine secondary structure changes during motion. Our findings revealed that the α-helix at residues 37-42 remained the most stable in the PTP1B-OHCbl Acetate system. Furthermore, upon binding of OHCbl Acetate or MeCbl, the WPD loop of PTP1B moved inward to the active pocket, forming a closed conformation and potentially obstructs substrate entry. Protein-ligand interaction analysis and MM-PBSA showed that OHCbl Acetate exhibited lower binding free energy and engaged in more residue interactions with PTP1B. In summary, our study confirmed the substantial inhibitory activity of OHCbl Acetate against PTP1B, with its inhibitory potency notably surpassing that of MeCbl. We demonstrated potential molecular mechanisms of OHCbl Acetate inhibiting PTP1B.
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Affiliation(s)
- Wencheng Zhao
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hengzheng Yang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Huizi Cui
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Wannan Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Shu Xing
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Weiwei Han
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
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3
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Bai X, Zhao X, Liu K, Yang X, He Q, Gao Y, Li W, Han W. Mulberry Leaf Compounds and Gut Microbiota in Alzheimer's Disease and Diabetes: A Study Using Network Pharmacology, Molecular Dynamics Simulation, and Cellular Assays. Int J Mol Sci 2024; 25:4062. [PMID: 38612872 PMCID: PMC11012793 DOI: 10.3390/ijms25074062] [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: 02/21/2024] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Recently, studies have reported a correlation that individuals with diabetes show an increased risk of developing Alzheimer's disease (AD). Mulberry leaves, serving as both a traditional medicinal herb and a food source, exhibit significant hypoglycemic and antioxidative properties. The flavonoid compounds in mulberry leaf offer therapeutic effects for relieving diabetic symptoms and providing neuroprotection. However, the mechanisms of this effect have not been fully elucidated. This investigation aimed to investigate the combined effects of specific mulberry leaf flavonoids (kaempferol, quercetin, rhamnocitrin, tetramethoxyluteolin, and norartocarpetin) on both type 2 diabetes mellitus (T2DM) and AD. Additionally, the role of the gut microbiota in these two diseases' treatment was studied. Using network pharmacology, we investigated the potential mechanisms of flavonoids in mulberry leaves, combined with gut microbiota, in combating AD and T2DM. In addition, we identified protein tyrosine phosphatase 1B (PTP1B) as a key target for kaempferol in these two diseases. Molecular docking and molecular dynamics simulations showed that kaempferol has the potential to inhibit PTP1B for indirect treatment of AD, which was proven by measuring the IC50 of kaempferol (279.23 μM). The cell experiment also confirmed the dose-dependent effect of kaempferol on the phosphorylation of total cellular protein in HepG2 cells. This research supports the concept of food-medicine homology and broadens the range of medical treatments for diabetes and AD, highlighting the prospect of integrating traditional herbal remedies with modern medical research.
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Affiliation(s)
- Xue Bai
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Xinyi Zhao
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Kaifeng Liu
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Xiaotang Yang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Qizheng He
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Yilin Gao
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
| | - Wannan Li
- Edmond H. Fischer Signal Transduction Laboratory, School of Life Sciences, Jilin University, Changchun 130012, China
| | - Weiwei Han
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China; (X.B.); (X.Z.); (K.L.); (X.Y.); (Q.H.); (Y.G.)
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Li S, Cai Y, Wang S, Luo L, Zhang Y, Huang K, Guan X. Gut microbiota: the indispensable player in neurodegenerative diseases. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38572789 DOI: 10.1002/jsfa.13509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/26/2024] [Accepted: 04/04/2024] [Indexed: 04/05/2024]
Abstract
As one of the most urgent social and health problems in the world, neurodegenerative diseases have always been of interest to researchers. However, the pathological mechanisms and therapeutic approaches are not achieved. In addition to the established roles of oxidative stress, inflammation and immune response, changes of gut microbiota are also closely related to the pathogenesis of neurodegenerative diseases. Gut microbiota is the central player of the gut-brain axis, the dynamic bidirectional communication pathway between gut microbiota and central nervous system, and emerging insights have confirmed its indispensability in the development of neurodegenerative diseases. In this review, we discuss the complex relationship between gut microbiota and the central nervous system from the perspective of the gut-brain axis; review the mechanism of microbiota for the modulation different neurodegenerative diseases and discuss how different dietary patterns affect neurodegenerative diseases via gut microbiota; and prospect the employment of gut microbiota in the therapeutic approach to those diseases. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Sen Li
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Yuwei Cai
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Shuo Wang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Lei Luo
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Yu Zhang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Kai Huang
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
| | - Xiao Guan
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- National Grain Industry (Urban Grain and Oil Security) Technology Innovation Center, Shanghai, China
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Bhavana, Kohal R, Kumari P, Das Gupta G, Kumar Verma S. Druggable targets of protein tyrosine phosphatase Family, viz. PTP1B, SHP2, Cdc25, and LMW-PTP: Current scenario on medicinal Attributes, and SAR insights. Bioorg Chem 2024; 144:107121. [PMID: 38237392 DOI: 10.1016/j.bioorg.2024.107121] [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: 12/02/2023] [Revised: 01/02/2024] [Accepted: 01/10/2024] [Indexed: 02/17/2024]
Abstract
Protein tyrosine phosphatases (PTPs) are the class of dephosphorylation enzymes that catalyze the removal of phosphate groups from tyrosine residues on proteins responsible for various cellular processes. Any disbalance in signal pathways mediated by PTPs leads to various disease conditions like diabetes, obesity, cancers, and autoimmune disorders. Amongst the PTP superfamily, PTP1B, SHP2, Cdc25, and LMW-PTP have been prioritized as druggable targets for developing medicinal agents. PTP1B is an intracellular PTP enzyme that downregulates insulin and leptin signaling pathways and is involved in insulin resistance and glucose homeostasis. SHP2 is involved in the RAS-MAPK pathway and T cell immunity. Cdk-cyclin complex activation occurs by Cdc25-PTPs involved in cell cycle regulation. LMW-PTPs are involved in PDGF/PDGFR, Eph/ephrin, and insulin signaling pathways, resulting in certain diseases like diabetes mellitus, obesity, and cancer. The signaling cascades of PTP1B, SHP2, Cdc25, and LMW-PTPs have been described to rationalize their medicinal importance in the pathophysiology of diabetes, obesity, and cancer. Their binding sites have been explored to overcome the hurdles in discovering target selective molecules with optimum potency. Recent developments in the synthetic molecules bearing heterocyclic moieties against these targets have been explored to gain insight into structural features. The elaborated SAR investigation revealed the effect of substituents on the potency and target selectivity, which can be implicated in the further discovery of newer medicinal agents targeting the druggable members of the PTP superfamily.
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Affiliation(s)
- Bhavana
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga 142 001, (Punjab), India
| | - Rupali Kohal
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga 142 001, (Punjab), India
| | - Preety Kumari
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga 142 001, (Punjab), India
| | - Ghanshyam Das Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, Moga 142 001, (Punjab), India
| | - Sant Kumar Verma
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga 142 001, (Punjab), India.
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Ly HT, Pham KD, Le PH, Do THT, Nguyen TTH, Le VM. Pharmacological properties of Ensete glaucum seed extract: Novel insights for antidiabetic effects via modulation of oxidative stress, inflammation, apoptosis and MAPK signaling pathways. JOURNAL OF ETHNOPHARMACOLOGY 2024; 320:117427. [PMID: 37992883 DOI: 10.1016/j.jep.2023.117427] [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: 10/04/2023] [Revised: 11/06/2023] [Accepted: 11/12/2023] [Indexed: 11/24/2023]
Abstract
ETHNOPHAMACOLOGICAL RELEVANCE Medicinal plants are increasingly making important contributions to diabetic treatment. Ensete glaucum seeds have been widely used in folk medicine to treat diabetes. AIM OF THE STUDY The study was aimed to investigate the protective effect and active mechanisms of E. glaucum seed extract (EGSE) against streptozotocin (STZ)-induced hyperglycemia. MATERIALS AND METHODS Hyperglycemic mice were treated with EGSE (25 and 50 mg/kg) or glibenclamide (5 mg/kg) once daily for 7 d. The effects of these treatments on changes in blood biochemical parameters, pancreatic, liver, and kidney histopathology, oxidative stress and inflammatory marker levels in pancreatic, hepatic, and renal tissues were assessed. Expression of several proteins in MAPK signaling pathway related to apoptosis in pancreatic tissue were investigated. Furthermore, ex vivo, in vitro, and in silico biological activities of EGSE and its compounds were also examined. RESULTS EGSE and glibenclamide increased notably insulin, reduced significantly glucose, AST, ALT, BUN and creatinine levels in blood. Pancreatic islets, hepatic and renal tissue structure were restored by EGSE or glibenclamide. EGSE showed significant anti-oxidative stress and anti-inflammatory effects by enhancing GSH level and dropping MDA, NF-κB, TNF-α and IL-6 levels in these tissues. Particularly, EGSE exhibited pancreatic protective effect against STZ-induced apoptosis through the MAPK signaling pathway by down-regulation of p-p38 MAPK, ERK1/2, JNK1, p-AMPK, Bax, Bax/Bcl-2, cytochrome c, cleaved-caspase 3 and PARP expression, and slight up-regulation of Bcl-2 expression. Moreover, EGSE inhibited intestinal glucose absorption, PTP1B, α-amylase, and α-glucosidase activities. Its isolated compounds (Afzelechin and coniferaldehyde) showed PTP1B and α-glucosidase inhibitory activities, and potent structure-activity relationships. CONCLUSION These findings indicated the hypoglycemic and protective effects of E. glaucum seed extract against the STZ diabetogenic action. E. glaucum seed is a potential candidate for further studies to confirm its activities as a therapeutic agent for diabetic patients.
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Affiliation(s)
- Hai Trieu Ly
- National Institute of Medicinal Materials (NIMM), Hanoi, 100000, Viet Nam; Research Center of Ginseng and Medicinal Materials (CGMM), National Institute of Medicinal Materials, Ho Chi Minh City, 700000, Viet Nam.
| | - Khuong Duy Pham
- Research Center of Ginseng and Medicinal Materials (CGMM), National Institute of Medicinal Materials, Ho Chi Minh City, 700000, Viet Nam.
| | - Phung Hien Le
- College of Science and Engineering, Flinders University, Sturt Rd, Bedford Park, South Australia, 5042, Australia.
| | - Thi Hong Tuoi Do
- Department of Pharmacology, Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, 700000, Viet Nam.
| | - Thi Thu Huong Nguyen
- Faculty of Pharmacy, Hong Bang International University (HIU), Ho Chi Minh City, 700000, Viet Nam.
| | - Van Minh Le
- National Institute of Medicinal Materials (NIMM), Hanoi, 100000, Viet Nam; Research Center of Ginseng and Medicinal Materials (CGMM), National Institute of Medicinal Materials, Ho Chi Minh City, 700000, Viet Nam.
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Jiao B, Zhang W, Zhang C, Zhang K, Cao X, Yu S, Zhang X. Protein tyrosine phosphatase 1B contributes to neuropathic pain by aggravating NF-κB and glial cells activation-mediated neuroinflammation via promoting endoplasmic reticulum stress. CNS Neurosci Ther 2024; 30:e14609. [PMID: 38334011 PMCID: PMC10853896 DOI: 10.1111/cns.14609] [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: 10/24/2023] [Revised: 12/16/2023] [Accepted: 01/05/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Neuropathic pain is a prevalent and highly debilitating condition that impacts millions of individuals globally. Neuroinflammation is considered a key factor in the development of neuropathic pain. Accumulating evidence suggests that protein tyrosine phosphatase 1B (PTP1B) plays a crucial role in regulating neuroinflammation. Nevertheless, the specific involvement of PTP1B in neuropathic pain remains largely unknown. This study aims to examine the impact of PTP1B on neuropathic pain and unravel the underlying molecular mechanisms implicated. METHODS In the current study, we evaluated the paw withdrawal threshold (PWT) of male rats following spared nerve injury (SNI) to assess the presence of neuropathic pain. To elucidate the underlying mechanisms, western blotting, immunofluorescence, and electron microscopy techniques were employed. RESULTS Our results showed that SNI significantly elevated PTP1B levels, which was accompanied by an increase in the expression of endoplasmic reticulum (ER) stress markers (BIP, p-PERK, p-IRE1α, and ATF6) and phosphorylated NF-κB in the spinal dorsal horn. SNI-induced mechanical allodynia was impaired by the treatment of intrathecal injection of PTP1B siRNA or PTP1B-IN-1, a specific inhibitor of PTP1B. Moreover, the intrathecal administration of PTP1B-IN-1 effectively suppressed the expression of ER stress markers (BIP, p-PERK/p-eIF2α, p-IRE1α, and ATF6), leading to the inhibition of NF-κB, microglia, and astrocytes activation, as well as a decrease in pro-inflammatory cytokines, including TNF-α, IL-6, and IL-1β. However, these effects were reversed by intrathecal administration of tunicamycin (Tm, an inducer of ER stress). Additionally, intrathecal administration of Tm in healthy rats resulted in the development of mechanical allodynia and the activation of NF-κB-mediated neuroinflammatory signaling. CONCLUSIONS The upregulation of PTP1B induced by SNI facilitates the activation of NF-κB and glial cells via ER stress in the spinal dorsal horn. This, in turn, leads to an increase in the production of pro-inflammatory cytokines, thereby contributing to the development and maintenance of neuropathic pain. Therefore, targeting PTP1B could be a promising therapeutic strategy for the treatment of neuropathic pain.
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Affiliation(s)
- Bo Jiao
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Wencui Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Caixia Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Kaiwen Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Xueqin Cao
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Shangchen Yu
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
| | - Xianwei Zhang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina
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Song Q, Ma H, Zhu L, Qi Z, Lan Z, Liu K, Zhang H, Wang K, Wang N. Upregulation of PTPN1 aggravates endotoxemia-induced cardiac dysfunction through inhibiting mitophagy. Int Immunopharmacol 2024; 126:111315. [PMID: 38043267 DOI: 10.1016/j.intimp.2023.111315] [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: 09/28/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVES To investigate the role of protein tyrosine phosphatase non-receptor type 1 (PTPN1) in mitophagy during sepsis and its underlying mechanisms and determine the therapeutic potential of PTPN1 inhibitors in endotoxemia-induced cardiac dysfunction. METHODS A mouse model of endotoxemia was established by administering an intraperitoneal injection of lipopolysaccharide (LPS). The therapeutic effect of targeting PTPN1 was evaluated using its inhibitor Claramine (CLA). Mitochondrial structure and function as well as the expression of mitophagy-related proteins were evaluated. Rat H9c2 cardiomyocytes were exposed to mouse RAW264.7 macrophage-derived conditioned medium. Cryptotanshinone, a specific p-STAT3 (Y705) inhibitor, was used to confirm the role of STAT3 in PTPN1-mediated mitophagy following LPS exposure. Electrophoretic mobility shift and dual luciferase reporter assays were performed to discern the mechanisms by which STAT3 regulated the expression of PINK1 and PRKN. RESULTS CLA alleviated LPS-induced myocardial damage, cardiac dysfunction, and mitochondrial injury and dysfunction in the mouse heart. PTPN1 upregulation exacerbated LPS-induced mitochondrial injury and dysfunction in H9c2 cardiomyocytes, but inhibited LPS-induced mitophagy. LPS promoted the interaction between PTPN1 and STAT3 and reduced STAT3 phosphorylation at Tyr705 (Y705), which was required to inhibit mitophagy by PTPN1. Upon LPS stimulation, PTPN1 negatively regulated the transcription of PINK1 and PRKN through dephosphorylation of STAT3 at Y705. STAT3 regulated the transcription of PINK1 and PRKN by binding to STAT3-responsive elements in their promoters. CONCLUSION PTPN1 upregulation aggravates endotoxemia-induced cardiac dysfunction by impeding mitophagy through dephosphorylation of STAT3 at Y705 and negative regulation of PINK1 and PRKN transcription.
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Affiliation(s)
- Qixiang Song
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Heng Ma
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Lili Zhu
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Zehong Qi
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Zijun Lan
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Ke Liu
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - Huali Zhang
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China
| | - KangKai Wang
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China.
| | - Nian Wang
- Department of Pathophysiology, School of Basic Medical Science, Central South University, 110 Xiangya Road, Changsha 410083, China; Key Laboratory of Sepsis Translational Medicine of Hunan, Central South University, 110 Xiangya Road, Changsha 410083, China.
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Trifonov RE, Ostrovskii VA. Tetrazoles and Related Heterocycles as Promising Synthetic Antidiabetic Agents. Int J Mol Sci 2023; 24:17190. [PMID: 38139019 PMCID: PMC10742751 DOI: 10.3390/ijms242417190] [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: 11/02/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Tetrazole heterocycle is a promising scaffold in drug design, and it is incorporated into active pharmaceutical ingredients of medications of various actions: hypotensives, diuretics, antihistamines, antibiotics, analgesics, and others. This heterocyclic system is metabolically stable and easily participates in various intermolecular interactions with different biological targets through hydrogen bonding, conjugation, or van der Waals forces. In the present review, a systematic analysis of the activity of tetrazole derivatives against type 2 diabetes mellitus (T2DM) has been performed. As it was shown, the tetrazolyl moiety is a key fragment of many antidiabetic agents with different activities, including the following: peroxisome proliferator-activated receptors (PPARs) agonists, protein tyrosine phosphatase 1B (PTP1B) inhibitors, aldose reductase (AR) inhibitors, dipeptidyl peptidase-4 (DPP-4) inhibitors and glucagon-like peptide 1 (GLP-1) agonists, G protein-coupled receptor (GPCRs) agonists, glycogen phosphorylases (GP) Inhibitors, α-glycosidase (AG) Inhibitors, sodium glucose co-transporter (SGLT) inhibitors, fructose-1,6-bisphosphatase (FBPase) inhibitors, IkB kinase ε (IKKε) and TANK binding kinase 1 (TBK1) inhibitors, and 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1). In many cases, the tetrazole-containing leader compounds markedly exceed the activity of medications already known and used in T2DM therapy, and some of them are undergoing clinical trials. In addition, tetrazole derivatives are very often used to act on diabetes-related targets or to treat post-diabetic disorders.
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Affiliation(s)
- Rostislav E. Trifonov
- Department of Chemistry and Technology of Nitrogen-Containing Organic Compounds, Saint Petersburg State Institute of Technology (Technical University), St. Petersburg 190013, Russia
| | - Vladimir A. Ostrovskii
- Department of Chemistry and Technology of Nitrogen-Containing Organic Compounds, Saint Petersburg State Institute of Technology (Technical University), St. Petersburg 190013, Russia
- Saint Petersburg Federal Research Center of the Russian Academy of Sciences (SPC RAS), St. Petersburg 199178, Russia
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Yang Q, Wei Z, Wei X, Zhang J, Tang Y, Zhou X, Liu P, Dou C, Luo F. The age-related characteristics in bone microarchitecture, osteoclast distribution pattern, functional and transcriptomic alterations of BMSCs in mice. Mech Ageing Dev 2023; 216:111877. [PMID: 37820882 DOI: 10.1016/j.mad.2023.111877] [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: 09/01/2023] [Revised: 09/25/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
Deteriorated age-related bone loss is the hallmarks of skeletal aging. However, how the aging of bone marrow mesenchymal stem cells (BMSCs) and osteoclasts are linked to the bone microstructure degeneration is not yet very clear. In this study, the characteristics of age-related bone loss, distribution patterns of osteoclasts, functional and transcriptomic alterations of BMSCs, hub genes responsible for BMSCs senescence, were analyzed. Our study revealed an age-related declined trends in trabecular and cortical bones of femur, tibia and lumbar vertebra in mice, which was accompanied by a shift from the trabecular to cortical bones in osteoclasts. Additionally, middle-aged or aged mice exhibited remarkably reduced dynamic bone formation capacities, along with reversed osteogenic-adipogenic differentiation potentials in BMSCs. Finally, transcriptomic analysis indicated that aging-related signaling pathways were significantly activated in BMSCs from aged mice (e.g., cellular senescence, p53 signaling pathway, etc.). Also, weighted correlation network analysis (WGCNA) and venn diagram analysis based on our RNA-Seq data and GSE35956 dataset revealed the critical role of PTPN1 in BMSCs senescence. Targeted inhibition of PTP1B with AAV-Ptpn1-RNAi dramatically postponed age-related bone loss in middle-aged mice. Collectively, our study has uncovered the age-dependent cellular characteristics in BMSCs and osteoclasts underlying progressive bone loss with advancing age.
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Affiliation(s)
- QianKun Yang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - ZhiYuan Wei
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - XiaoYu Wei
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jie Zhang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yong Tang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xiang Zhou
- Cadet Brigade 4, College of Basic Medicine, Army Medical University, The Third Military Medical University, Chongqing, China
| | - Pan Liu
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Ce Dou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Fei Luo
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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11
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Miao J, Dong J, Miao Y, Bai Y, Qu Z, Jassim BA, Huang B, Nguyen Q, Ma Y, Murray AA, Li J, Low PS, Zhang ZY. Discovery of a selective TC-PTP degrader for cancer immunotherapy. Chem Sci 2023; 14:12606-12614. [PMID: 38020389 PMCID: PMC10646932 DOI: 10.1039/d3sc04541b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/22/2023] [Indexed: 12/01/2023] Open
Abstract
T-cell protein tyrosine phosphatase (TC-PTP), encoded by PTPN2, has emerged as a promising target for cancer immunotherapy. TC-PTP deletion in B16 melanoma cells promotes tumor cell antigen presentation, while loss of TC-PTP in T-cells enhances T-cell receptor (TCR) signaling and stimulates cell proliferation and activation. Therefore, there is keen interest in developing TC-PTP inhibitors as novel immunotherapeutic agents. Through rational design and systematic screening, we discovered the first highly potent and selective TC-PTP PROTAC degrader, TP1L, which induces degradation of TC-PTP in multiple cell lines with low nanomolar DC50s and >110-fold selectivity over the closely related PTP1B. TP1L elevates the phosphorylation level of TC-PTP substrates including pSTAT1 and pJAK1, while pJAK2, the substrate of PTP1B, is unaffected by the TC-PTP degrader. TP1L also intensifies interferon gamma (IFN-γ) signaling and increases MHC-I expression. In Jurkat cells, TP1L activates TCR signaling through increased phosphorylation of LCK. Furthermore, in a CAR-T cell and KB tumor cell co-culture model, TP1L enhances CAR-T cell mediated tumor killing efficacy through activation of the CAR-T cells. Thus, we surmise that TP1L not only provides a unique opportunity for in-depth interrogation of TC-PTP biology but also serves as an excellent starting point for the development of novel immunotherapeutic agents targeting TC-PTP.
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Affiliation(s)
- Jinmin Miao
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Jiajun Dong
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Yiming Miao
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Yunpeng Bai
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Zihan Qu
- Department of Chemistry, Purdue University West Lafayette IN 47907 USA
| | - Brenson A Jassim
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Bo Huang
- Department of Chemistry, Purdue University West Lafayette IN 47907 USA
| | - Quyen Nguyen
- Department of Chemistry, Purdue University West Lafayette IN 47907 USA
| | - Yuan Ma
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Allison A Murray
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Jinyue Li
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
| | - Philip S Low
- Department of Chemistry, Purdue University West Lafayette IN 47907 USA
- Institute for Cancer Research, Purdue University West Lafayette IN 47907 USA
- Institute for Drug Discovery, Purdue University West Lafayette IN 47907 USA
| | - Zhong-Yin Zhang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette IN 47907 USA
- Department of Chemistry, Purdue University West Lafayette IN 47907 USA
- Institute for Cancer Research, Purdue University West Lafayette IN 47907 USA
- Institute for Drug Discovery, Purdue University West Lafayette IN 47907 USA
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12
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Shu L, Du C, Zuo Y. Abnormal phosphorylation of protein tyrosine in neurodegenerative diseases. J Neuropathol Exp Neurol 2023; 82:826-835. [PMID: 37589710 DOI: 10.1093/jnen/nlad066] [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] [Indexed: 08/18/2023] Open
Abstract
Neurodegenerative diseases, including Alzheimer disease, Parkinson disease, amyotrophic lateral sclerosis, and multiple sclerosis, are chronic disorders of the CNS that are characterized by progressive neuronal dysfunction. These diseases have diverse clinical and pathological features and their pathogenetic mechanisms are not yet fully understood. Currently, widely accepted hypotheses include the accumulation of misfolded proteins, oxidative stress from reactive oxygen species, mitochondrial dysfunction, DNA damage, neurotrophin dysfunction, and neuroinflammatory processes. In the CNS of patients with neurodegenerative diseases, a variety of abnormally phosphorylated proteins play important roles in pathological processes such as neuroinflammation and intracellular accumulation of β-amyloid plaques and tau. In recent years, the roles of abnormal tyrosine phosphorylation of intracellular signaling molecules regulated by protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs) in neurodegenerative diseases have attracted increasing attention. Here, we summarize the roles of signaling pathways related to protein tyrosine phosphorylation in the pathogenesis of neurodegenerative diseases and the progress of therapeutic studies targeting PTKs and PTPs that provide theoretical support for future studies on therapeutic strategies for these devastating and important neurodegenerative diseases.
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Affiliation(s)
- Lijuan Shu
- Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
- Department of Obstetrics and Gynecology Intensive Care Unit, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Chunfu Du
- Department of Neurosurgery, Ya'an People's Hospital, Ya'an, China
| | - Yunxia Zuo
- Department of Anesthesiology, West China Hospital, Sichuan University & The Research Units of West China (2018RU012), Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
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Sulyman AO, Fulcher J, Crossley S, Fatokun AA, Olorunniji FJ. Shikonin and Juglone Inhibit Mycobacterium tuberculosis Low-Molecular-Weight Protein Tyrosine Phosphatase a (Mt-PTPa). BIOTECH 2023; 12:59. [PMID: 37754203 PMCID: PMC10526854 DOI: 10.3390/biotech12030059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 08/21/2023] [Accepted: 09/12/2023] [Indexed: 09/28/2023] Open
Abstract
Low-molecular-weight protein tyrosine phosphatases (LMW-PTPs) are involved in promoting the intracellular survival of Mycobacterium tuberculosis (Mtb), the causative organism of tuberculosis. These PTPs directly alter host signalling pathways to evade the hostile environment of macrophages and avoid host clearance. Among these, protein tyrosine phosphatase A (Mt-PTPa) is implicated in phagosome acidification failure, thereby inhibiting phagosome maturation to promote Mycobacterium tuberculosis (Mtb) survival. In this study, we explored Mt-PTPa as a potential drug target for treating Mtb. We started by screening a library of 502 pure natural compounds against the activities of Mt-PTPa in vitro, with a threshold of 50% inhibition of activity via a <500 µM concentration of the candidate drugs. The initial screen identified epigallocatechin, myricetin, rosmarinic acid, and shikonin as hits. Among these, the naphthoquinone, shikonin (5, 8-dihydroxy-2-[(1R)-1-hydroxy-4-methyl-3-pentenyl]-1,4-naphthoquinone), showed the strongest inhibition (IC50 33 µM). Further tests showed that juglone (5-hydroxy-1,4-naphthalenedione), another naphthoquinone, displayed similar potent inhibition of Mt-PTPa to shikonin. Kinetic analysis of the inhibition patterns suggests a non-competitive inhibition mechanism for both compounds, with inhibitor constants (Ki) of 8.5 µM and 12.5 µM for shikonin and juglone, respectively. Our findings are consistent with earlier studies suggesting that Mt-PTPa is susceptible to specific allosteric modulation via a non-competitive or mixed inhibition mechanism.
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Affiliation(s)
- Abdulhakeem O. Sulyman
- Department of Biochemistry, Faculty of Pure and Applied Sciences, Kwara State University, Malete 241103, Nigeria
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Jessie Fulcher
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Samuel Crossley
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Amos A. Fatokun
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Femi J. Olorunniji
- School of Pharmacy & Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
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14
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Bhowmik P, Baezid HM, Arabi II. Assessment of antidiabetic activity of three Phenylspirodrimanes from fungus Stachybotrys chartarum MUT 3308 by ADME, QSAR, molecular docking and molecular dynamics simulation studies against protein tyrosine phosphatase 1B (PTP1B). J Biomol Struct Dyn 2023:1-15. [PMID: 37698508 DOI: 10.1080/07391102.2023.2256410] [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: 05/29/2023] [Accepted: 08/24/2023] [Indexed: 09/13/2023]
Abstract
Phenylspirodrimanes (PSD) are the sesquiterpene quinone type meroterpenoids found in nature. PSDs are found to exhibit inhibitory activity against immunocomplex diseases, and tyrosine kinase receptors. Three of the different PSDs C1, C2, and C3 that have been reported to be isolated from the sponge-associated fungus Stachybotrys chartarum MUT 3308 are selected for studying their possible inhibitory effect against type 2 diabetes mellitus. Mechanistically, blocking protein tyrosine phosphatase 1B (PTP1B) helps to reduce the insulin resistance induction caused by the high expression of PTP1B. The QSAR, ADME, toxicity (T) study was carried out to predict the pharmacokinetic properties and the biological activities of the PSDs. PASS prediction web tool was used to find and select the target proteins 1NNY, and 2HNP. According to the molecular docking simulations, C1 and C2 showed better binding affinity of -8.5 kcal/mol, and -8.1 kcal/mol respectively against 1NNY compared to the control ligand. RMSD, RMSF, Rg, and SASA analysis revealed that both C1, and C2 showed better stability, minor conformational changes, and minor fluctuation upon binding to PTP1B. Protein contact analysis was carried out to validate the residues that are in contact with the ligands according to molecular docking studies. Overall, C1, and C2 could be proposed as novel natural hits to be developed and small modifications of these PSDs could result in inducing the binding affinity significantly, although experimental validation is required for further evaluation of the work.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Prasenjit Bhowmik
- Department of Chemistry-BMC, Biochemistry, Disciplinary Domain of Science and Technology, Uppsala University, Uppsala, Sweden
- Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong, Bangladesh
- Department of Textile Engineering, Green University of Bangladesh, Narayanganj, Bangladesh
| | - Hossain Mohammad Baezid
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Ishmam Ibnul Arabi
- Department of Chemistry, Faculty of Science, University of Chittagong, Chittagong, Bangladesh
- Department of Textile Engineering, Green University of Bangladesh, Narayanganj, Bangladesh
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15
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Yang Q, Zou Y, Wei X, Ye P, Wu Y, Ai H, Zhang Z, Tan J, Zhou J, Yang Y, Dai Q, Dou C, Luo F. PTP1B knockdown alleviates BMSCs senescence via activating AMPK-mediated mitophagy and promotes osteogenesis in senile osteoporosis. Biochim Biophys Acta Mol Basis Dis 2023:166795. [PMID: 37385514 DOI: 10.1016/j.bbadis.2023.166795] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
The senescence of bone marrow mesenchymal stem cells (BMSCs) is the basis of senile osteoporosis (SOP). Targeting BMSCs senescence is of paramount importance for developing anti-osteoporotic strategy. In this study, we found that protein tyrosine phosphatase 1B (PTP1B), an enzyme responsible for tyrosine dephosphorylation, was significantly upregulated in BMSCs and femurs with advancing chronological age. Therefore, the potential role of PTP1B in BMSCs senescence and senile osteoporosis was studied. Firstly, significantly upregulated PTP1B expression along with impaired osteogenic differentiation capacity was observed in D-galactose (D-gal)-induced BMSCs and naturally-aged BMSCs. Furthermore, PTP1B silencing could effectively alleviate senescence, improve mitochondrial dysfunction, and restore osteogenic differentiation in aged BMSCs, which was attributable to enhanced mitophagy mediated by PKM2/AMPK pathway. In addition, hydroxychloroquine (HCQ), an autophagy inhibitor, significantly reversed the protective effects from PTP1B knockdown. In SOP animal model, transplantation of LVsh-PTP1B-transfected D-gal-induced BMSCs harvested double protective effects, including increased bone formation and reduced osteoclastogenesis. Similarly, HCQ treatment remarkably suppressed osteogenesis of LVsh-PTP1B-transfected D-gal-induced BMSCs in vivo. Taken together, our data demonstrated that PTP1B silencing protects against BMSCs senescence and mitigates SOP via activating AMPK-mediated mitophagy. Targeting PTP1B may represent a promising interventional strategy to attenuate SOP.
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Affiliation(s)
- QianKun Yang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - YuChi Zou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - XiaoYu Wei
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Peng Ye
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - YuTong Wu
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - HongBo Ai
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Zhao Zhang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China; Orthopedics Department, The General Hospital of Western Theater Command PLA, Chengdu 610083, Sichuan Province, China
| | - JiuLin Tan
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Jiangling Zhou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - YuSheng Yang
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - QiJie Dai
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Ce Dou
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China
| | - Fei Luo
- National & Regional United Engineering Lab of Tissue Engineering, Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, 400038, China.
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16
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Maccari R, Ottanà R. Can Allostery Be a Key Strategy for Targeting PTP1B in Drug Discovery? A Lesson from Trodusquemine. Int J Mol Sci 2023; 24:ijms24119621. [PMID: 37298571 DOI: 10.3390/ijms24119621] [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: 04/28/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is an enzyme crucially implicated in aberrations of various signaling pathways that underlie the development of different human pathologies, such as obesity, diabetes, cancer, and neurodegenerative disorders. Its inhibition can prevent these pathogenetic events, thus providing a useful tool for the discovery of novel therapeutic agents. The search for allosteric PTP1B inhibitors can represent a successful strategy to identify drug-like candidates by offering the opportunity to overcome some issues related to catalytic site-directed inhibitors, which have so far hampered the development of drugs targeting this enzyme. In this context, trodusquemine (MSI-1436), a natural aminosterol that acts as a non-competitive PTP1B inhibitor, appears to be a milestone. Initially discovered as a broad-spectrum antimicrobial agent, trodusquemine exhibited a variety of unexpected properties, ranging from antidiabetic and anti-obesity activities to effects useful to counteract cancer and neurodegeneration, which prompted its evaluation in several preclinical and clinical studies. In this review article, we provide an overview of the main findings regarding the activities and therapeutic potential of trodusquemine and their correlation with PTP1B inhibition. We also included some aminosterol analogues and related structure-activity relationships that could be useful for further studies aimed at the discovery of new allosteric PTP1B inhibitors.
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Affiliation(s)
- Rosanna Maccari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Rosaria Ottanà
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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17
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Zhang M, Liu C, Zhao L, Zhang X, Su Y. The Emerging Role of Protein Phosphatase in Regeneration. Life (Basel) 2023; 13:life13051216. [PMID: 37240861 DOI: 10.3390/life13051216] [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: 03/31/2023] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Maintaining normal cellular behavior is essential for the survival of organisms. One of the main mechanisms to control cellular behavior is protein phosphorylation. The process of protein phosphorylation is reversible under the regulation of protein kinases and protein phosphatases. The importance of kinases in numerous cellular processes has been well recognized. In recent years, protein phosphatases have also been demonstrated to function actively and specifically in various cellular processes and thus have gained more and more attention from researchers. In the animal kingdom, regeneration frequently occurs to replace or repair damaged or missing tissues. Emerging evidence has revealed that protein phosphatases are crucial for organ regeneration. In this review, after providing a brief overview of the classification of protein phosphatases and their functions in several representative developmental processes, we highlight the critical roles that protein phosphatases play in organ regeneration by summarizing the most recent research on the function and underlying mechanism of protein phosphatase in the regeneration of the liver, bone, neuron, and heart in vertebrates.
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Affiliation(s)
- Meiling Zhang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Chenglin Liu
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Long Zhao
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Xuejiao Zhang
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- College of Fisheries, Ocean University of China, Qingdao 266003, China
| | - Ying Su
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
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18
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Ferreira V, Folgueira C, García-Altares M, Guillén M, Ruíz-Rosario M, DiNunzio G, Garcia-Martinez I, Alen R, Bookmeyer C, Jones JG, Cigudosa JC, López-Larrubia P, Correig-Blanchar X, Davis RJ, Sabio G, Rada P, Valverde ÁM. Hypothalamic JNK1-hepatic fatty acid synthase axis mediates a metabolic rewiring that prevents hepatic steatosis in male mice treated with olanzapine via intraperitoneal: Additional effects of PTP1B inhibition. Redox Biol 2023; 63:102741. [PMID: 37230004 DOI: 10.1016/j.redox.2023.102741] [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: 04/21/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
Olanzapine (OLA), a widely used second-generation antipsychotic (SGA), causes weight gain and metabolic alterations when administered orally to patients. Recently, we demonstrated that, contrarily to the oral treatment which induces weight gain, OLA administered via intraperitoneal (i.p.) in male mice resulted in body weight loss. This protection was due to an increase in energy expenditure (EE) through a mechanism involving the modulation of hypothalamic AMPK activation by higher OLA levels reaching this brain region compared to those of the oral treatment. Since clinical studies have shown hepatic steatosis upon chronic treatment with OLA, herein we further investigated the role of the hypothalamus-liver interactome upon OLA administration in wild-type (WT) and protein tyrosine phosphatase 1B knockout (PTP1B-KO) mice, a preclinical model protected against metabolic syndrome. WT and PTP1B-KO male mice were fed an OLA-supplemented diet or treated via i.p. Mechanistically, we found that OLA i.p. treatment induces mild oxidative stress and inflammation in the hypothalamus in a JNK1-independent and dependent manner, respectively, without features of cell dead. Hypothalamic JNK activation up-regulated lipogenic gene expression in the liver though the vagus nerve. This effect concurred with an unexpected metabolic rewiring in the liver in which ATP depletion resulted in increased AMPK/ACC phosphorylation. This starvation-like signature prevented steatosis. By contrast, intrahepatic lipid accumulation was observed in WT mice treated orally with OLA; this effect being absent in PTP1B-KO mice. We also demonstrated an additional benefit of PTP1B inhibition against hypothalamic JNK activation, oxidative stress and inflammation induced by chronic OLA i.p. treatment, thereby preventing hepatic lipogenesis. The protection conferred by PTP1B deficiency against hepatic steatosis in the oral OLA treatment or against oxidative stress and neuroinflammation in the i.p. treatment strongly suggests that targeting PTP1B might be also a therapeutic strategy to prevent metabolic comorbidities in patients under OLA treatment in a personalized manner.
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Affiliation(s)
- Vitor Ferreira
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain
| | - Cintia Folgueira
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029, Madrid, Spain
| | - María García-Altares
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain; Rovira I Virgili University, Department of Electronic Engineering, Tarragona, Spain
| | - Maria Guillén
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain
| | | | - Giada DiNunzio
- Center for Neurosciences and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, Cantanhede, Portugal
| | - Irma Garcia-Martinez
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain
| | - Rosa Alen
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain
| | - Christoph Bookmeyer
- Rovira I Virgili University, Department of Electronic Engineering, Tarragona, Spain
| | - John G Jones
- Center for Neurosciences and Cell Biology, University of Coimbra, UC-Biotech, Biocant Park, Cantanhede, Portugal
| | | | - Pilar López-Larrubia
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain
| | - Xavier Correig-Blanchar
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain; Rovira I Virgili University, Department of Electronic Engineering, Tarragona, Spain; Institut D'Investigacio Sanitària Pere Virgili (IISPV), Tarragona, Spain
| | - Roger J Davis
- Program in Molecular Medicine, Chan Medical School, University of Massachusetts, Worcester, USA
| | - Guadalupe Sabio
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029, Madrid, Spain
| | - Patricia Rada
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain.
| | - Ángela M Valverde
- Instituto de Investigaciones Biomedicas Alberto Sols (IIBM), CSIC-UAM, Madrid, Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), ISCIII, Spain.
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Neha, Parvez S. Emerging therapeutics agents and recent advances in drug repurposing for Alzheimer's disease. Ageing Res Rev 2023; 85:101815. [PMID: 36529440 DOI: 10.1016/j.arr.2022.101815] [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: 08/21/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
Alzheimer's disease (AD) is a multivariate and diversified disease and affects the most sensitive areas of the brain, the cerebral cortex, and the hippocampus. AD is a progressive age-related neurodegenerative disease most often associated with memory deficits and cognition that get more worsen over time. The central theory on the pathophysiological hallmark features of AD is characterized by the accumulation of amyloid β (Aβ) peptides, also associated with tau proteins (τ) dysfunctioning which leads to distorted microtubular structure, affects the cholinergic system, and mitochondrial biogenesis. This review emphasizes how simple it is to find novel treatments for AD and focuses on several recently developed medications through repurposing that can speed up traditional drug development.
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Affiliation(s)
- Neha
- Department of Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Suhel Parvez
- Department of Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India.
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