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Zhou Y, Yao Z, Lin Y, Zhang H. From Tyrosine Kinases to Tyrosine Phosphatases: New Therapeutic Targets in Cancers and Beyond. Pharmaceutics 2024; 16:888. [PMID: 39065585 DOI: 10.3390/pharmaceutics16070888] [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: 04/25/2024] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs) regulate the level of tyrosine phosphorylation in proteins. PTKs are key enzymes that catalyze the transfer of an ATP phosphoric acid to a tyrosine residue on target protein substrates. Protein tyrosine phosphatases (PTPs) are responsible for the dephosphorylation of tyrosine residues and play a role in countering PTK overactivity. As widespread oncogenes, PTKs were once considered to be promising targets for therapy. However, tyrosine kinase inhibitors (TKIs) now face a number of challenges, including drug resistance and toxic side effects. Treatment strategies now need to be developed from a new perspective. In this review, we assess the current state of TKIs and highlight the role of PTPs in cancer and other diseases. With the advances of allosteric inhibition and the development of multiple alternative proprietary drug strategies, the reputation of PTPs as "undruggable" targets has been overturned, and they are now considered viable therapeutic targets. We also discuss the strategies and prospects of PTP-targeted therapy, as well as its future development.
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Affiliation(s)
- Yu Zhou
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, MOE Key Laboratory of Tumor Molecular Biology, and Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Zhimeng Yao
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, MOE Key Laboratory of Tumor Molecular Biology, and Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
- Department of Urology Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510660, China
| | - Yusheng Lin
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, MOE Key Laboratory of Tumor Molecular Biology, and Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou 510660, China
| | - Hao Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, MOE Key Laboratory of Tumor Molecular Biology, and Institute of Precision Cancer Medicine and Pathology, School of Medicine, Jinan University, Guangzhou 510632, China
- Department of Pathology, Gongli Hospital of Shanghai Pudong New Area, Shanghai 200135, China
- Zhuhai Institute of Jinan University, Zhuhai 511436, China
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2
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Zhai Z, Wang W, Chai Z, Yuan Y, Zhu Q, Ge J, Li Z. A ratiometric fluorescence platform based on WS 2 QDs/CoOOH nanosheet system for α-glucosidase activity detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 310:123959. [PMID: 38290280 DOI: 10.1016/j.saa.2024.123959] [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: 11/18/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/01/2024]
Abstract
In this study, we have constructed a ratiometric fluorescence sensor for sensitive sensing of α-glucosidase activity based on WS2 QDs/ CoOOH nanosheet system. In this system, as an oxidase-imimicking nanomaterial, CoOOH nanosheet could convert o-phenylenediamine into 2,3-diaminophenazine (DAP), which had a high fluorescence emission at 575 nm. The DAP subsequently could quench the fluorescence of WS2 QDs via the inner filter effect (IFE). L-Ascorbic acid-2-O-α-D-glucopyranose could be hydrolyzed by α-glucosidase to yield ascorbic acid. CoOOH nanosheet can be converted to Co2+ ions by ascorbic acid, leading to the fluorescence decrease of DAP and the fluorescence recovery of WS2 QDs. Therefore, a novel ratio fluorescence sensing strategy was established for α-glucosidase detection based on WS2 QDs/CoOOH nanosheet system. This WS2 QDs/CoOOH nanosheet system has a low detection limit of 0.009 U/mL for α-Glu assay. The proposed strategy succeeded in detecting α-Glu in human serum samples.
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Affiliation(s)
- Zhiyao Zhai
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China
| | - Weixia Wang
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China
| | - Ziwei Chai
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yating Yuan
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China
| | - Qianqian Zhu
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China
| | - Jia Ge
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China.
| | - Zhaohui Li
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou University, Zhengzhou 450001, PR China.
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3
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Gone GB, Go G, Nam G, Jeong W, Kim H, Lee S, Chung SJ. Exploring the Anti-Diabetic Potential of Quercetagitrin through Dual Inhibition of PTPN6 and PTPN9. Nutrients 2024; 16:647. [PMID: 38474775 DOI: 10.3390/nu16050647] [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: 01/29/2024] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Protein tyrosine phosphatases (PTPs) are pivotal contributors to the development of type 2 diabetes (T2DM). Hence, directing interventions towards PTPs emerges as a valuable therapeutic approach for managing type 2 diabetes. In particular, PTPN6 and PTPN9 are targets for anti-diabetic effects. Through high-throughput drug screening, quercetagitrin (QG) was recognized as a dual-target inhibitor of PTPN6 and PTPN9. We observed that QG suppressed the catalytic activity of PTPN6 (IC50 = 1 μM) and PTPN9 (IC50 = 1.7 μM) in vitro and enhanced glucose uptake by mature C2C12 myoblasts. Additionally, QG increased the phosphorylation of adenosine monophosphate-activated protein kinase (AMPK) and insulin-dependent phosphorylation of Akt in mature C2C12 myoblasts. It further promoted the phosphorylation of Akt in the presence of palmitic acid, suggesting the attenuation of insulin resistance. In summary, our results indicate QG's role as a potent inhibitor targeting both PTPN6 and PTPN9, showcasing its potential as a promising treatment avenue for T2DM.
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Affiliation(s)
- Geetanjali B Gone
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Geonhui Go
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gibeom Nam
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Woojoo Jeong
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyemin Kim
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Soah Lee
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sang J Chung
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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4
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Li LZ, Chen L, Tu YL, Dai XJ, Xiao SJ, Shi JS, Li YJ, Yang XS. Six New Phenolic Glycosides from the Seeds of Moringa oleifera Lam. and Their α-Glucosidase Inhibitory Activity. Molecules 2023; 28:6426. [PMID: 37687255 PMCID: PMC10489651 DOI: 10.3390/molecules28176426] [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: 07/15/2023] [Revised: 08/26/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
Plant-derived phytochemicals have recently drawn interest in the prevention and treatment of diabetes mellitus (DM). The seeds of Moringa oleifera Lam. are widely used in food and herbal medicine for their health-promoting properties against various diseases, including DM, but many of their effective constituents are still unknown. In this study, 6 new phenolic glycosides, moringaside B-G (1-6), together with 10 known phenolic glycosides (7-16) were isolated from M. oleifera seeds. The structures were elucidated by 1D and 2D NMR spectroscopy and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) data analysis. The absolute configurations of compounds 2 and 3 were determined by electronic circular dichroism (ECD) calculations. Compounds 2 and 3 especially are combined with a 1,3-dioxocyclopentane moiety at the rhamnose group, which are rarely reported in phenolic glycoside backbones. A biosynthetic pathway of 2 and 3 was assumed. Moreover, all the isolated compounds were evaluated for their inhibitory activities against α-glucosidase. Compounds 4 and 16 exhibited marked activities with IC50 values of 382.8 ± 1.42 and 301.4 ± 6.22 μM, and the acarbose was the positive control with an IC50 value of 324.1 ± 4.99 μM. Compound 16 revealed better activity than acarbose.
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Affiliation(s)
- Lin-Zhen Li
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; (L.-Z.L.); (L.C.); (Y.-L.T.); (X.-J.D.); (S.-J.X.)
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, China;
| | - Liang Chen
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; (L.-Z.L.); (L.C.); (Y.-L.T.); (X.-J.D.); (S.-J.X.)
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guizhou Medical University, Guiyang 550004, China
| | - Yang-Li Tu
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; (L.-Z.L.); (L.C.); (Y.-L.T.); (X.-J.D.); (S.-J.X.)
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guizhou Medical University, Guiyang 550004, China
| | - Xiang-Jie Dai
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; (L.-Z.L.); (L.C.); (Y.-L.T.); (X.-J.D.); (S.-J.X.)
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guizhou Medical University, Guiyang 550004, China
| | - Sheng-Jia Xiao
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; (L.-Z.L.); (L.C.); (Y.-L.T.); (X.-J.D.); (S.-J.X.)
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guizhou Medical University, Guiyang 550004, China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi 563000, China
| | - Yong-Jun Li
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guizhou Medical University, Guiyang 550004, China
| | - Xiao-Sheng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, China;
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Tang XE, Cheng YQ, Tang CK. Protein tyrosine phosphatase non-receptor type 2 as the therapeutic target of atherosclerotic diseases: past, present and future. Front Pharmacol 2023; 14:1219690. [PMID: 37670950 PMCID: PMC10475599 DOI: 10.3389/fphar.2023.1219690] [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: 05/09/2023] [Accepted: 08/03/2023] [Indexed: 09/07/2023] Open
Abstract
Tyrosine-protein phosphatase non-receptor type 2(PTPN2), an important member of the protein tyrosine phosphatase family, can regulate various signaling pathways and biological processes by dephosphorylating receptor protein tyrosine kinases. Accumulating evidence has demonstrated that PTPN2 is involved in the occurrence and development of atherosclerotic cardiovascular disease. Recently, it has been reported that PTPN2 exerts an anti-atherosclerotic effect by regulating vascular endothelial injury, monocyte proliferation and migration, macrophage polarization, T cell polarization, autophagy, pyroptosis, and insulin resistance. In this review, we summarize the latest findings on the role of PTPN2 in the pathogenesis of atherosclerosis to provide a rationale for better future research and therapeutic interventions.
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Affiliation(s)
- Xiao-Er Tang
- Department of Pathophysiology, Shaoyang University, Shaoyang, Hunan, China
| | - Ya-Qiong Cheng
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China
| | - Chao-Ke Tang
- Institute of Cardiovascular Research, Key Laboratory for Atherosclerology of Hunan Province, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China
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Ahn D, Kwon J, Song S, Lee J, Yoon S, Chung SJ. Methyl Syringate Stimulates Glucose Uptake by Inhibiting Protein Tyrosine Phosphatases Relevant to Insulin Resistance. Life (Basel) 2023; 13:1372. [PMID: 37374154 DOI: 10.3390/life13061372] [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: 05/09/2023] [Revised: 05/31/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Several protein tyrosine phosphatases (PTPs), particularly PTPN1, PTPN2, PTPN6, PTPN9, PTPN11, PTPRS, and DUSP9, are involved in insulin resistance. Therefore, these PTPs could be promising targets for the treatment of type 2 diabetes. Our previous studies revealed that PTPN2 and PTPN6 are potential antidiabetic targets. Therefore, the identification of dual-targeting inhibitors of PTPN2 and PTPN6 could be a potential therapeutic strategy for the treatment or prevention of type 2 diabetes. In this study, we demonstrate that methyl syringate inhibits the catalytic activity of PTPN2 and PTPN6 in vitro, indicating that methyl syringate acts as a dual-targeting inhibitor of PTPN2 and PTPN6. Furthermore, methyl syringate treatment significantly increased glucose uptake in mature 3T3-L1 adipocytes. Additionally, methyl syringate markedly enhanced phosphorylation of adenosine monophosphate-activated protein kinase (AMPK) in 3T3L1 adipocytes. Taken together, our results suggest that methyl syringate, a dual-targeting inhibitor of PTPN2 and PTPN6, is a promising therapeutic candidate for the treatment or prevention of type 2 diabetes.
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Affiliation(s)
- Dohee Ahn
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jihee Kwon
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Songyi Song
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jooyoung Lee
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sunyoung Yoon
- Department of Cosmetic Science, Kwangju Women's University, Gwangju 62396, Republic of Korea
| | - Sang J Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Yao FH, Liang X, Lu XH, Cheng X, Luo LX, Qi SH. Pyrrospirones K-Q, Decahydrofluorene-Class Alkaloids from the Marine-Derived Fungus Penicillium sp. SCSIO 41512. JOURNAL OF NATURAL PRODUCTS 2022; 85:2071-2081. [PMID: 35930265 DOI: 10.1021/acs.jnatprod.2c00473] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Seven new decahydrofluorene-class alkaloids, pyrrospirones K-Q (1-7), together with six known analogues (8-13) were isolated from the marine-derived fungal strain Penicillium sp. SCSIO 41512. Their structures were determined by extensive spectroscopic analysis, and their absolute configurations were established by single-crystal X-ray diffraction analysis and quantum chemical calculations of electronic circular dichroism spectra. Compounds 1 and 3 possess a novel decahydrofluorene-class alkaloid skeleton with a 6/5/6/8/5/6/13 and a 6/5/6/5/6/13 polycyclic system, respectively. Biologically, 13 displayed significant inhibitory activity against protein tyrosine phosphatases CD45, TCPTP, SHP1, and PTP1B with IC50 values of 8.1-17.8 μM, and 1, 2, 5, 8-10, 12, and 13 showed antibacterial activity against six pathogens. Their structure-activity relationship is also discussed.
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Affiliation(s)
- Fei-Hua Yao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Liang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
| | - Xin-Hua Lu
- New Drug Research Development Center of North China Pharmaceutical Group Corporation, Shijiazhuang, 0521655, China
| | - Xia Cheng
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lian-Xiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Shu-Hua Qi
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou, 510301, Guangdong, China
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
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Computation Screening of Multi-Target Antidiabetic Properties of Phytochemicals in Common Edible Mediterranean Plants. PLANTS 2022; 11:plants11131637. [PMID: 35807588 PMCID: PMC9269125 DOI: 10.3390/plants11131637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/09/2022] [Accepted: 06/16/2022] [Indexed: 11/16/2022]
Abstract
Diabetes mellitus is a metabolic disease and one of the leading causes of deaths worldwide. Numerous studies support that the Mediterranean diet has preventive and treatment effects on diabetes. These effects have been attributed to the special bioactive composition of Mediterranean foods. The objective of this work was to decipher the antidiabetic activity of Mediterranean edible plant materials using the DIA-DB inverse virtual screening web server. A literature review on the antidiabetic potential of Mediterranean plants was performed and twenty plants were selected for further examination. Subsequently, the most abundant flavonoids, phenolic acids, and terpenes in plant materials were studied to predict their antidiabetic activity. Results showed that flavonoids are the most active phytochemicals as they modulate the function of 17 protein-targets and present high structural similarity with antidiabetic drugs. Their antidiabetic effects are linked with three mechanisms of action, namely (i) regulation of insulin secretion/sensitivity, (ii) regulation of glucose metabolism, and (iii) regulation of lipid metabolism. Overall, the findings can be utilized to understand the antidiabetic activity of edible Mediterranean plants pinpointing the most active phytoconstituents.
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Ahn D, Kim J, Nam G, Zhao X, Kwon J, Hwang JY, Kim JK, Yoon SY, Chung SJ. Ethyl Gallate Dual-Targeting PTPN6 and PPARγ Shows Anti-Diabetic and Anti-Obese Effects. Int J Mol Sci 2022; 23:ijms23095020. [PMID: 35563411 PMCID: PMC9105384 DOI: 10.3390/ijms23095020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 02/04/2023] Open
Abstract
The emergence of the high correlation between type 2 diabetes and obesity with complicated conditions has led to the coinage of the term “diabesity”. AMP-activated protein kinase (AMPK) activators and peroxisome proliferator-activated receptor (PPARγ) antagonists have shown therapeutic activity for diabesity, respectively. Hence, the discovery of compounds that activate AMPK as well as antagonize PPARγ may lead to the discovery of novel therapeutic agents for diabesity. In this study, the knockdown of PTPN6 activated AMPK and suppressed adipogenesis in 3T3-L1 cells. By screening a library of 1033 natural products against PTPN6, we found ethyl gallate to be the most selective inhibitor of PTPN6 (Ki = 3.4 μM). Subsequent assay identified ethyl gallate as the best PPARγ antagonist (IC50 = 5.4 μM) among the hit compounds inhibiting PTPN6. Ethyl gallate upregulated glucose uptake and downregulated adipogenesis in 3T3-L1 cells as anticipated. These results strongly suggest that ethyl gallate, which targets both PTPN6 and PPARγ, is a potent therapeutic candidate to combat diabesity.
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Affiliation(s)
- Dohee Ahn
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Jinsoo Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Gibeom Nam
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Xiaodi Zhao
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Jihee Kwon
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea;
| | - Ji Young Hwang
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Jae Kwan Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
| | - Sun-Young Yoon
- Department of Cosmetic Science, Kwangju Women’s University, Gwangju 62396, Korea;
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (D.A.); (J.K.); (G.N.); (X.Z.); (J.Y.H.); (J.K.K.)
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea;
- Correspondence: ; Tel.: +82-31-290-7703
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Kim J, Son J, Ahn D, Nam G, Zhao X, Park H, Jeong W, Chung SJ. Structure-Activity Relationship of Synthetic Ginkgolic Acid Analogs for Treating Type 2 Diabetes by PTPN9 Inhibition. Int J Mol Sci 2022; 23:ijms23073927. [PMID: 35409287 PMCID: PMC8999917 DOI: 10.3390/ijms23073927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023] Open
Abstract
Ginkgolic acid (C13:0) (GA), isolated from Ginkgo biloba, is a potential therapeutic agent for type 2 diabetes. A series of GA analogs were designed and synthesized for the evaluation of their structure–activity relationship with respect to their antidiabetic effects. Unlike GA, the synthetic analog 1e exhibited improved inhibitory activity against PTPN9 and significantly stimulated glucose uptake via AMPK phosphorylation in differentiated 3T3-L1 adipocytes and C2C12 myotubes; it also induced insulin-dependent AKT activation in C2C12 myotubes in a concentration-dependent manner. Docking simulation results showed that 1e had a better binding affinity through a unique hydrophobic interaction with a PTPN9 hydrophobic groove. Moreover, 1e ameliorated palmitate-induced insulin resistance in C2C12 cells. This study showed that 1e increases glucose uptake and suppresses palmitate-induced insulin resistance in C2C12 myotubes via PTPN9 inhibition; thus, it is a promising therapeutic candidate for treating type 2 diabetes.
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Affiliation(s)
- Jinsoo Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (J.K.); (D.A.); (G.N.); (X.Z.)
| | - Jinyoung Son
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea; (J.S.); (H.P.); (W.J.)
| | - Dohee Ahn
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (J.K.); (D.A.); (G.N.); (X.Z.)
| | - Gibeom Nam
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (J.K.); (D.A.); (G.N.); (X.Z.)
| | - Xiaodi Zhao
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (J.K.); (D.A.); (G.N.); (X.Z.)
| | - Hyuna Park
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea; (J.S.); (H.P.); (W.J.)
| | - Woojoo Jeong
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea; (J.S.); (H.P.); (W.J.)
| | - Sang J. Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (J.K.); (D.A.); (G.N.); (X.Z.)
- Department of Biopharmaceutical Convergence, Sungkyunkwan University, Suwon 16419, Korea; (J.S.); (H.P.); (W.J.)
- Correspondence:
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11
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Terminalin from African Mango (Irvingia gabonensis) Stimulates Glucose Uptake through Inhibition of Protein Tyrosine Phosphatases. Biomolecules 2022; 12:biom12020321. [PMID: 35204821 PMCID: PMC8869479 DOI: 10.3390/biom12020321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 02/01/2023] Open
Abstract
Protein tyrosine phosphatases (PTPs), along with protein tyrosine kinases, control signaling pathways involved in cell growth, metabolism, differentiation, proliferation, and survival. Several PTPs, such as PTPN1, PTPN2, PTPN9, PTPN11, PTPRS, and DUSP9, disrupt insulin signaling and trigger type 2 diabetes, indicating that PTPs are promising drug targets for the treatment or prevention of type 2 diabetes. As part of an ongoing study on the discovery of pharmacologically active bioactive natural products, we conducted a phytochemical investigation of African mango (Irvingia gabonensis) using liquid chromatography–mass spectrometry (LC/MS)-based analysis, which led to the isolation of terminalin as a major component from the extract of the seeds of I. gabonensis. The structure of terminalin was characterized by spectroscopic methods, including one-dimensional (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR) and high-resolution (HR) electrospray ionization (ESI) mass spectroscopy. Moreover, terminalin was evaluated for its antidiabetic property; terminalin inhibited the catalytic activity of PTPN1, PTPN9, PTPN11, and PTPRS in vitro and led to a significant increase in glucose uptake in differentiated C2C12 muscle cells, indicating that terminalin exhibits antidiabetic effect through the PTP inhibitory mechanism. These findings suggest that terminalin derived from African mango could be used as a functional food ingredient or pharmaceutical supplement for the prevention of type 2 diabetes.
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Yoon SY, Ahn D, Kim JK, Seo SO, Chung SJ. Nepetin Acts as a Multi-Targeting Inhibitor of Protein Tyrosine Phosphatases Relevant to Insulin Resistance. Chem Biodivers 2021; 19:e202100600. [PMID: 34725898 DOI: 10.1002/cbdv.202100600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/01/2021] [Indexed: 11/11/2022]
Abstract
Protein tyrosine phosphatases (PTPs) are essential modulators of signal transduction pathways and has been implicated in many human diseases such as cancer, diabetes, obesity, autoimmune disorders, and neurological diseases, indicating that PTPs are next-generation drug targets. Since PTPN1, PTPN2, and PTPN11 have been reported to be negative regulators of insulin action, the identification of PTP inhibitors may be an effective strategy to develop therapeutic agents for the treatment of type 2 diabetes. In this study, we observed for the first time that nepetin inhibits the catalytic activity of PTPN1, PTPN2, and PTPN11 in vitro, indicating that nepetin acts as a multi-targeting inhibitor of PTPN1, PTPN2, and PTPN11. Furthermore, treatment of mature 3T3-L1 adipocytes with 20 μM nepetin stimulates glucose uptake through AMPK activation. Taken together, our findings provide evidence that nepetin, a multi-targeting inhibitor of PTPN1, PTPN2, and PTPN11, could be a promising therapeutic candidate for the treatment of type 2 diabetes.
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Affiliation(s)
- Sun-Young Yoon
- Department of Cosmetic Science, Kwangju Women's University, Gwangju, 62396, Republic of Korea
| | - Dohee Ahn
- Department of Biopharmaceutical Convergence and School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jae Kwan Kim
- Department of Biopharmaceutical Convergence and School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seung-Oh Seo
- Department of Biopharmaceutical Convergence and School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sang J Chung
- Department of Biopharmaceutical Convergence and School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
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