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Ju Y, Shen T, Guo Z, Kong Y, Huang Y, Hu J. Vitronectin promotes insulin resistance in trophoblast cells by activating JNK in gestational diabetes mellitus. Cell Biol Int 2024. [PMID: 38654431 DOI: 10.1002/cbin.12167] [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: 08/18/2023] [Revised: 03/13/2024] [Accepted: 04/12/2024] [Indexed: 04/26/2024]
Abstract
Gestational diabetes mellitus (GDM) is a common disorder in the clinic, which may lead to severe detrimental outcomes both for mothers and infants. However, the underlying mechanisms for GDM are still not clear. In the present study, we performed label-free proteomics using placentas from GDM patients and normal controls. Vitronectin caused our attention among differentially expressed proteins due to its potential role in the pathological progression of GDM. Vitronectin was increased in the placentas of GDM patients, which was confirmed by Western blot analysis. Vitronectin represses insulin signal transduction in trophoblast cells, whereas the knockdown of vitronectin further potentiates insulin-evoked events. Neutralization of CD51/61 abolishes the repressed insulin signal transduction in vitronectin-treated trophoblast cells. Moreover, vitronectin activates JNK in a CD51/61-depedent manner. Inhibition of JNK rescues impaired insulin signal transduction induced by vitronectin. Overall, our data indicate that vitronectin binds CD51/61 in trophoblast cells to activate JNK, and thus induces insulin resistance. In this regard, increased expression of vitronectin is likely a risk factor for the pathological progression of GDM. Moreover, blockade of vitronectin production or its receptors (CD51/61) may have therapeutic potential for dealing with GDM.
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Affiliation(s)
- Yuejun Ju
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
- Department of Endocrinology, Changshu No.2 People's Hospital, Affiliated Changshu Hospital of Nantong University, Changshu, Jiangsu, P.R. China
| | - Ting Shen
- Department of Endocrinology, Changshu No.2 People's Hospital, Affiliated Changshu Hospital of Nantong University, Changshu, Jiangsu, P.R. China
| | - Zhanhong Guo
- Department of Endocrinology, Changshu No.2 People's Hospital, Affiliated Changshu Hospital of Nantong University, Changshu, Jiangsu, P.R. China
| | - Yinghong Kong
- Department of Endocrinology, Changshu No.2 People's Hospital, Affiliated Changshu Hospital of Nantong University, Changshu, Jiangsu, P.R. China
| | - Yun Huang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Ji Hu
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
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2
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Chen J, Ni X, Yang J, Yang H, Liu X, Chen M, Sun C, Wang Y. Cartilage stem/progenitor cells-derived exosomes facilitate knee cartilage repair in a subacute osteoarthritis rat model. J Cell Mol Med 2024; 28:e18327. [PMID: 38661437 PMCID: PMC11044818 DOI: 10.1111/jcmm.18327] [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: 12/11/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024] Open
Abstract
Cartilage defects in the knee are often associated with the progression of degenerative osteoarthritis (OA), and cartilage repair is a useful strategy for managing this disease. However, cartilage repair is challenging because of the unique environment within the tissue. Recently, stem cell-based therapies have shed new light on this issue. In this study, we prepared exosomes (EXOs) from cartilage stem/progenitor cells (CSPCs) and found that treatment with EXOs increased the viability, migration, and proliferation of cultured primary chondrocytes. In a subacute OA rat model, the application of EXOs facilitated cartilage regeneration as evidenced by histological staining. Exosomal protein analysis together with bioinformatics suggested that cyclin-dependent kinase 9 (CDK9) is a key factor for chondrocyte growth and migration. Functional studies confirmed this prediction, that is, inhibiting CDK9 reduced the beneficial effects induced by EXOs in primary chondrocytes; while overexpression of CDK9 recapitulated the EXOs-induced phenotypes. RNA-Seq data showed that a set of genes involved in cell growth and migration were up-regulated by EXOs in chondrocytes. These changes could be partially reproduced by CDK9 overexpression. Overall, our data suggest that EXOs derived from primary CSPCs hold great therapeutic potential for treating cartilage defect-associated disorders such as degenerative OA, and that CDK9 is a key factor in this process.
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Affiliation(s)
- Jing Chen
- Department of OrthopedicsAffiliated Hospital of Nantong University, Nantong UniversityNantongJiangsu ProvinceChina
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐innovation Center of NeuroregenerationNantong UniversityNantongJiangsu ProvinceChina
| | - Xiaohui Ni
- Department of OrthopedicsDafeng People's HospitalYanchengJiangsu ProvinceChina
| | - Jian Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐innovation Center of NeuroregenerationNantong UniversityNantongJiangsu ProvinceChina
| | - Hongwei Yang
- Department of OrthopedicsAffiliated Nantong Hospital 3 of Nantong UniversityNantongJiangsu ProvinceChina
| | - Xiaoyu Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐innovation Center of NeuroregenerationNantong UniversityNantongJiangsu ProvinceChina
| | - Minhao Chen
- Department of OrthopedicsAffiliated Hospital of Nantong University, Nantong UniversityNantongJiangsu ProvinceChina
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co‐innovation Center of NeuroregenerationNantong UniversityNantongJiangsu ProvinceChina
| | - Youhua Wang
- Department of OrthopedicsAffiliated Hospital of Nantong University, Nantong UniversityNantongJiangsu ProvinceChina
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Qian L, Zhu Y, Deng C, Liang Z, Chen J, Chen Y, Wang X, Liu Y, Tian Y, Yang Y. Peroxisome proliferator-activated receptor gamma coactivator-1 (PGC-1) family in physiological and pathophysiological process and diseases. Signal Transduct Target Ther 2024; 9:50. [PMID: 38424050 PMCID: PMC10904817 DOI: 10.1038/s41392-024-01756-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/13/2024] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
Peroxisome proliferator-activated receptor gamma coactivator-1 (PGC-1) family (PGC-1s), consisting of three members encompassing PGC-1α, PGC-1β, and PGC-1-related coactivator (PRC), was discovered more than a quarter-century ago. PGC-1s are essential coordinators of many vital cellular events, including mitochondrial functions, oxidative stress, endoplasmic reticulum homeostasis, and inflammation. Accumulating evidence has shown that PGC-1s are implicated in many diseases, such as cancers, cardiac diseases and cardiovascular diseases, neurological disorders, kidney diseases, motor system diseases, and metabolic disorders. Examining the upstream modulators and co-activated partners of PGC-1s and identifying critical biological events modulated by downstream effectors of PGC-1s contribute to the presentation of the elaborate network of PGC-1s. Furthermore, discussing the correlation between PGC-1s and diseases as well as summarizing the therapy targeting PGC-1s helps make individualized and precise intervention methods. In this review, we summarize basic knowledge regarding the PGC-1s family as well as the molecular regulatory network, discuss the physio-pathological roles of PGC-1s in human diseases, review the application of PGC-1s, including the diagnostic and prognostic value of PGC-1s and several therapies in pre-clinical studies, and suggest several directions for future investigations. This review presents the immense potential of targeting PGC-1s in the treatment of diseases and hopefully facilitates the promotion of PGC-1s as new therapeutic targets.
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Affiliation(s)
- Lu Qian
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Yanli Zhu
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Chao Deng
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Zhenxing Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East, Zhengzhou, 450052, China
| | - Junmin Chen
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Ying Chen
- Department of Hematology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Xue Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Yanqing Liu
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Ye Tian
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China
| | - Yang Yang
- Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, The Affiliated Hospital of Northwest University, Northwest University, Xi'an, 710021, China.
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, China.
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Ma J, Wu Y, Cen L, Wang Z, Jiang K, Lian B, Sun C. Cold-inducible lncRNA266 promotes browning and the thermogenic program in white adipose tissue. EMBO Rep 2023; 24:e55467. [PMID: 37824433 PMCID: PMC10702832 DOI: 10.15252/embr.202255467] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 10/14/2023] Open
Abstract
Cold-induced nonshivering thermogenesis has contributed to the improvement of several metabolic syndromes caused by obesity. Several long noncoding RNAs (lncRNAs) have been shown to play a role in brown fat biogenesis and thermogenesis. Here we show that the lncRNA lnc266 is induced by cold exposure in inguinal white adipose tissue (iWAT). In vitro functional studies reveal that lnc266 promotes brown adipocyte differentiation and thermogenic gene expression. At room temperature, lnc266 has no effects on white fat browning and systemic energy consumption. However, in a cold environment, lnc266 promotes white fat browning and thermogenic gene expression in obese mice. Moreover, lnc266 increases core body temperature and reduces body weight gain. Mechanistically, lnc266 does not directly regulate Ucp1 expression. Instead, lnc266 sponges miR-16-1-3p and thus abolishes the repression of miR-16-1-3p on Ucp1 expression. As a result, lnc266 promotes preadipocyte differentiation toward brown-like adipocytes and stimulates thermogenic gene expression. Overall, lnc266 is a cold-inducible lncRNA in iWAT, with a key role in white fat browning and the thermogenic program.
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Affiliation(s)
- Jinyu Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
| | - Yuting Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
| | - Lixue Cen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
| | - Zhe Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
| | - Ketao Jiang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
| | - Bolin Lian
- School of Life SciencesNantong UniversityNantongChina
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory of Research and Evaluation of Tissue Engineering Technology Products, School of MedicineNantong UniversityNantongChina
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5
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Zhao Y, Liu J, Liu S, Yang P, Liang Y, Ma J, Mao S, Sun C, Yang Y. Fibroblast exosomal TFAP2C induced by chitosan oligosaccharides promotes peripheral axon regeneration via the miR-132-5p/CAMKK1 axis. Bioact Mater 2023; 26:249-263. [PMID: 36936807 PMCID: PMC10020534 DOI: 10.1016/j.bioactmat.2023.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/03/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Chitosan and its degradation product, oligosaccharides, have been shown to facilitate peripheral nerve regeneration. However, the underlying mechanisms are not well understood. In this study, we analyzed the protein expression profiles in sciatic nerves after injury using proteomics. A group of proteins related to exosome packaging and transport is up-regulated by chitosan oligosaccharides (COS), implying that exosomes are involved in COS-induced peripheral nerve regeneration. In fact, exosomes derived from fibroblasts (f-EXOs) treated with COS significantly promoted axon extension and regeneration. Exosomal protein identification and functional studies, revealed that TFAP2C is a key factor in neurite outgrowth induced by COS-f-EXOs. Furthermore, we showed that TFAP2C targets the pri-miRNA-132 gene and represses miR-132-5p expression in dorsal root ganglion neurons. Camkk1 is a downstream substrate of miR-132-5p that positively affects axon extension. In rats, miR-132-5p antagomir stimulates CAMKK1 expression and improves axon regeneration and functional recovery in sciatic nerves after injury. Our data reveal the mechanism for COS in axon regeneration, that is COS induce fibroblasts to produce TFAP2C-enriched EXOs, which are then transferred into axons to promote axon regeneration via miR-132-5p/CAMKK1. Moreover, these results show a new facet of fibroblasts in axon regeneration in peripheral nerves.
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Affiliation(s)
- Yahong Zhao
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Jina Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Sha Liu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Panpan Yang
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Yunyun Liang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Jinyu Ma
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Susu Mao
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
- Corresponding author.
| | - Yumin Yang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, Jiangsu, 226001, China
- Corresponding author.
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Yang M, Pan M, Huang D, Liu J, Guo Y, Liu Y, Zhang W. Glucagon Promotes Gluconeogenesis through the GCGR/PKA/CREB/PGC-1α Pathway in Hepatocytes of the Japanese Flounder Paralichthys olivaceus. Cells 2023; 12:cells12071098. [PMID: 37048171 PMCID: PMC10093564 DOI: 10.3390/cells12071098] [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: 02/02/2023] [Revised: 03/25/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
In order to investigate the mechanism of glucagon regulation of gluconeogenesis, primary hepatocytes of the Japanese flounder (Paralichthys olivaceus) were incubated with synthesized glucagon, and methods based on inhibitors and gene overexpression were employed. The results indicated that glucagon promoted glucose production and increased the mRNA levels of glucagon receptor (gcgr), guanine nucleotide-binding protein Gs α subunit (gnas), adenylate cyclase 2 (adcy2), protein kinase A (pka), cAMP response element-binding protein 1 (creb1), peroxisome proliferator-activated receptor-γ coactivator 1α (pgc-1α), phosphoenolpyruvate carboxykinase 1 (pck1), and glucose-6-phosphatase (g6pc) in the hepatocytes. An inhibitor of GCGR decreased the mRNA expression of gcgr, gnas, adcy2, pka, creb1, pgc-1α, pck1, g6pc, the protein expression of phosphorylated CREB and PGC-1α, and glucose production. The overexpression of gcgr caused the opposite results. An inhibitor of PKA decreased the mRNA expression of pgc-1α, pck1, g6pc, the protein expression of phosphorylated-CREB, and glucose production in hepatocytes. A CREB-targeted inhibitor significantly decreased the stimulation by glucagon of the mRNA expression of creb1, pgc-1α, and gluconeogenic genes, and glucose production decreased accordingly. After incubating the hepatocytes with an inhibitor of PGC-1α, the glucagon-activated mRNA expression of pck1 and g6pc was significantly down-regulated. Together, these results demonstrate that glucagon promotes gluconeogenesis through the GCGR/PKA/CREB/PGC-1α pathway in the Japanese flounder.
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Affiliation(s)
- Mengxi Yang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
- Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Fisheries College, Hunan Agricultural University, Changsha 410128, China
| | - Mingzhu Pan
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
| | - Dong Huang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
| | - Jiahuan Liu
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
| | - Yanlin Guo
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
| | - Yue Liu
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
| | - Wenbing Zhang
- The Key Laboratory of Aquaculture Nutrition and Feeds (Ministry of Agriculture and Rural Affairs), The Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
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Liu X, Guan J, Wu Z, Xu L, Sun C. The TGR5 Agonist INT-777 Promotes Peripheral Nerve Regeneration by Activating cAMP-dependent Protein Kinase A in Schwann Cells. Mol Neurobiol 2023; 60:1901-1913. [PMID: 36593434 DOI: 10.1007/s12035-022-03182-x] [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: 06/26/2022] [Accepted: 12/15/2022] [Indexed: 01/04/2023]
Abstract
Schwann cell (SC) myelination is a pivotal event in the normal physiological functioning of the peripheral nervous system (PNS), where myelination is finely controlled by a series of factors within SCs to ensure timely onset and correct myelin thickness for saltatory conduction. Among these, cyclic AMP (cAMP) is a promising factor for driving myelin gene expression in SCs. It has been shown that TGR5 activation is often associated with increased production of cAMP. Therefore, we speculated that the G-protein-coupled receptor (TGR5) might be involved in the PNS myelination. To test this hypothesis, sciatic nerve crush-injured mice were treated with INT-777, a specific agonist of TGR5, which significantly improved remyelination and functional recovery. Furthermore, rats that underwent sciatic nerve transection were treated with INT-777, which also promoted nerve regeneration and functional recovery. In primary SCs, the stimulatory effect of INT-777 on myelin gene expression was largely counteracted by H89, a potent inhibitor of cAMP-dependent protein kinase A (PKA). Additionally, INT-777 stimulated cell migration was blunted in the presence of H89. Overall, these data indicate that INT-777 is capable of promoting peripheral nerve regeneration and functional recovery after injury, and these benefits are likely due to the activation of the TGR5/cAMP/PKA axis. As such, INT-777, together with other TGR5 agonists, may hold great therapeutic potential for treating peripheral nerve injury.
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Affiliation(s)
- Xiaoyu Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neurogeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Jindong Guan
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neurogeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Zhiguan Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neurogeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Lingchi Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neurogeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China.
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neurogeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China.
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8
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Exosomes from Inflamed Macrophages Promote the Progression of Parkinson's Disease by Inducing Neuroinflammation. Mol Neurobiol 2023; 60:1914-1928. [PMID: 36596964 DOI: 10.1007/s12035-022-03179-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023]
Abstract
Inflammation is a common feature both for Parkinson's disease (PD) and obesity-associated metabolic syndromes. Inflammation mediated by inflamed macrophages in white adipose tissue plays a pivotal role for the pathogenesis of metabolic syndromes. Exosomes are important carriers connecting peripheral tissues and the central nervous system (CNS). Therefore, we speculate that exosomes derived from inflamed macrophages may be involved in the pathological progression of PD. Here, we prepared exosomes from lipopolysaccharide (LPS) or interferon gamma (IFNγ) treated macrophages (inflamed macrophages) and examined their potential roles in PD. Our data showed that exosomes from inflamed macrophages stimulate proinflammatory cytokine expression in primary microglia and astrocytes. In vivo, inflamed macrophage exosomes induce behavioral defects in mice as evidenced by shortened duration in the rotarod test and prolonged latency in the pole test. The treatment of exosomes also reduces tyrosine hydroxylase (TH) positive cells in the substantia nigra pars compacta (SNpc) and striatum. All these PD-like phenotypes are likely due to the activation of microglia and astrocytes induced by exosomes from inflamed macrophages. Exosome sequencing, together with bioinformatics analysis and functional studies, revealed that exosomal miRNAs such as miR-155-5p are likely a key factor for inducing an inflammatory response in glial cells. These results indicate that exosomes derived from inflamed macrophages are likely a causative factor for developing PD. In this regard, inflamed macrophage exosomes might be a linker transducing the peripheral tissue inflammation into the CNS.
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Wang S, Zhao Y, Yang J, Liu S, Ni W, Bai X, Yang Z, Zhao D, Liu M. Ginseng polysaccharide attenuates red blood cells oxidative stress injury by regulating red blood cells glycolysis and liver gluconeogenesis. JOURNAL OF ETHNOPHARMACOLOGY 2023; 300:115716. [PMID: 36122792 DOI: 10.1016/j.jep.2022.115716] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Panax ginseng C.A. Mey (PG) is famous for "Qi-tonifying" effect, which has a medicinal history of more than 2 millennia. Modern pharmacology has confirmed that the "Qi-tonifying" effect of PG may be closely related to its pharmacological properties such as anti-oxidation, antineoplastic and treatment of cardiovascular disease. As one of the earliest cells affected by oxidative stress, RBCs are widely used in the diagnosis of diseases. Ginseng polysaccharide (GPS), is one of the major active components of PG, which plays an important role in resisting oxidative stress, affecting energy metabolism and other effects. However, the molecular mechanism explaining the "Qi-tonifying" effect of GPS from the perspective of RBCs oxidative damage has not been reported. AIM OF THE STUDY This study aimed to investigate the protective effect of GPS on oxidatively damaged RBCs using in vitro and in vivo models and explore the molecular mechanisms from the perspective of glycolysis and gluconeogenesis pathways. To provides a theoretical basis for the future research of antioxidant drugs. MATERIALS AND METHODS Established three different in vitro and in vivo research models: an in vitro model of RBCs exposed to hydrogen peroxide (H2O2) (40 mM), an in vivo model of RBCs from rats subjected to exhaustive swimming, and an in vitro model of BRL-3A cells exposed to H2O2 (25 μM). All three models were also tested in the presence of different concentrations of GPS. RESULTS The findings showed that GPS was the most potent antagonist of H2O2-induced hemolysis and redox inbalance in RBCs. In exhaustive exercise rats, GPS ameliorated RBVs hemolysis, including reducing whole-blood viscosity (WBV), improving deformability, oxygen-carrying and -releasing capacities, which was related to the enhancing of antioxidant capacity. Moreover, GPS promoted RBCs glycolysis in rats with exhaustive exercise by recovering the activities of glycolysis-related enzymes and increasing band 3 protein expression, thereby regulating the imbalance of energy metabolism caused by oxidative stress. Furthermore, we demonstrated that GPS improved antioxidant defense system, enhanced energy metabolism, and regulated gluconeogenesis via activating PPAR gamma co-activator 1 alpha (PGC-1α) pathway in H2O2-exposed BRL-3A cells. Mechanistically, GPS promoted glycolysis and protected RBCs from oxidative injury was partly dependent on the regulation of gluconeogenesis, as inhibition of gluconeogenesis by metformin (Met) attenuates the regulation of antioxidant enzymes and key enzymes of glycolytic by GPS in exhaustive exercise rats. CONCLUSION This study demonstrates that GPS protects RBCs from oxidative stress damage by promoting RBCs glycolysis and liver gluconeogenesis pathways. These results may contribute to the study of new RBCs treatments to boost antioxidant capacity and protect RBCs against oxidative stress.
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Affiliation(s)
- Siming Wang
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Yuchu Zhao
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Junjie Yang
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Shichao Liu
- Academic Affairs Office, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Weifeng Ni
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Xueyuan Bai
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Ze Yang
- School of Pharmacy, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Daqing Zhao
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
| | - Meichen Liu
- Northeast Asian Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, 1035 Boshuo Road, Changchun, Jilin, 130117, China.
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10
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Pacifico R, Del Gaudio N, Bove G, Altucci L, Siragusa L, Cruciani G, Ruvo M, Bellavita R, Grieco P, Adamo MFA. Discovery of a new class of triazole based inhibitors of acetyl transferase KAT2A. J Enzyme Inhib Med Chem 2022; 37:1987-1994. [PMID: 35880250 PMCID: PMC9331200 DOI: 10.1080/14756366.2022.2097447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
We have recently developed a new synthetic methodology that provided both N-aryl-5-hydroxytriazoles and N-pyridine-4-alkyl triazoles. A selection of these products was carried through virtual screening towards targets that are contemporary and validated for drug discovery and development. This study determined a number of potential structure target dyads of which N-pyridinium-4-carboxylic-5-alkyl triazole displayed the highest score specificity towards KAT2A. Binding affinity tests of abovementioned triazole and related analogs towards KAT2A confirmed the predictions of the in-silico assay. Finally, we have run in vitro inhibition assays of selected triazoles towards KAT2A; the ensemble of binding and inhibition assays delivered pyridyl-triazoles carboxylates as the prototype of a new class of inhibitors of KAT2A.
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Affiliation(s)
- Roberta Pacifico
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Nunzio Del Gaudio
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Guglielmo Bove
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lucia Altucci
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | | | - Gabriele Cruciani
- Laboratory for Chemometrics and Molecular Modeling, Department of Chemistry, Biology, and Biotechnology, University of Perugia, Perugia, Italy
| | - Menotti Ruvo
- Institute of Biostructures and Bioimaging, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Rosa Bellavita
- Department of Pharmacy, School of Medicine, University of Naples 'Federico II', Naples, Italy
| | - Paolo Grieco
- Department of Pharmacy, School of Medicine, University of Naples 'Federico II', Naples, Italy
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
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11
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PCAF Accelerates Vascular Senescence via the Hippo Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1200602. [PMID: 36246398 PMCID: PMC9560818 DOI: 10.1155/2022/1200602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/13/2022] [Accepted: 08/30/2022] [Indexed: 11/18/2022]
Abstract
P300/CBP-Associated Factor (PCAF), one of the histone acetyltransferases (HATs), is known to be involved in cell growth and/or differentiation. PCAF is reported to be involved in atherosclerotic plaques and neointimal formation. However, its role in cellular senescence remains undefined. We investigated the potential mechanism for PCAF-mediated cellular senescence. Immunohistochemical (IHC) analysis showed PCAF was distinctly increased in the endothelia of aorta in aged mice. Palmitate acid (PA) or X radiation significantly induced the expression of senescence-associated markers and PCAF in human umbilical vein endothelial cells (HUVECs). PCAF silence in PA-treated HUVECs significantly rescued senescence-associated phenotypes, while PCAF overexpression accelerated it. Additionally, our results showed that Yes1 Associated Transcriptional Regulator (YAP) that acts as end effector of the Hippo signaling pathway is crucial in PCAF-mediated endothelial senescence. YAP activity declining was observed in aged vascular endothelia. Overexpression of YAP partially ameliorated PCAF-induced endothelial senescence. In vivo, endothelial-(EC-) specific PCAF downregulation in aged mice using adeno-associated virus revealed less vascular senescence-associated phenotypes. These results suggested that PCAF mediated endothelial senescence through the Hippo signaling pathway, implying that PCAF may become a potential target for the prevention and treatment of vascular aging.
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12
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Wang R, Yuan W, Li L, Lu F, Zhang L, Gong H, Huang X. Resveratrol ameliorates muscle atrophy in chronic kidney disease via the axis of SIRT1/FoxO1. Phytother Res 2022; 36:3265-3275. [PMID: 35606908 DOI: 10.1002/ptr.7499] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/28/2022] [Accepted: 05/05/2022] [Indexed: 11/10/2022]
Abstract
Chronic kidney disease (CKD) is often associated with muscle atrophy. However, the underlying molecular mechanisms are still not well understood. Here, we treated 5/6-nephrectomized (5/6Nx) rats with resveratrol and found that this treatment greatly improves renal function as evidenced by reduced proteinuria and cystatin C. Moreover, resveratrol ameliorates renal fibrosis by reducing transforming growth factor β (TGF-β) and connective tissue growth factor (CTGF). Meanwhile, muscle atrophy in these 5/6Nx rats was largely attenuated by resveratrol. Immunoprecipitation revealed that SIRT1 physically interacts with FoxO1 in muscle, and this interaction was weakened in 5/6Nx rats. As a consequence, acetylated FoxO1 was increased in muscle of 5/6Nx rats. The application of resveratrol markedly reverses this trend. These data point out that SIRT1 is a key factor for linking renal disease and muscle atrophy. Indeed, both renal dysfunction and muscle atrophy were further aggravated by 5/6Nx in Sirt1+/- mice. Taken together, our data indicate that SIRT1 plays a pivotal role in muscle atrophy in CKD, and FoxO1 might be a substrate of SIRT1 in this process. Furthermore, resveratrol, together with other agonists of SIRT1, may hold great therapeutic potentials for treating CKD and its related muscle atrophy.
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Affiliation(s)
- Ruiting Wang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Weidong Yuan
- Department of Nephrology, People's Hospital of Haimen District, Nantong, China
| | - Lu Li
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Fei Lu
- Department of Nephrology, People's Hospital of Haimen District, Nantong, China
| | - Lingling Zhang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Haifeng Gong
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
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13
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Qin L, Yao W, Wang T, Jin T, Guo B, Wen S, Huang F. Targeting gut microbiota-derived butyrate improves hepatic gluconeogenesis through the cAMP-PKA-GCN5 pathway in late pregnant sows. Food Funct 2022; 13:4360-4374. [PMID: 35355044 DOI: 10.1039/d2fo00094f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Short chain fatty acids (SCFAs) produced by gut microbiota affected hepatic glucose metabolism via the gut-liver axis. The present study aimed to investigate the effects of butyrate produced by gut microbiota on hepatic gluconeogenesis in late-pregnancy sows. A total of 240 primiparous sows in late pregnancy were tested for blood glucose using a glucose meter before feeding and grouped according to their blood glucose level as follows: 0-3.0 mmol L-1 (low blood glucose group, LG group) and 3.1-5.0 mmol L-1 (normal blood glucose group, NG group). Colonic SCFAs and microbiota, SCFAs in the portal vein and liver, and acetylation and phosphorylation levels in the liver samples were analyzed. Hepatocytes from pregnant sows were examined for the effect of butyrate on hepatic glucose gluconeogenesis. In vivo experiments showed that the reproductive performance, serum glucose metabolism index, colonic butyrate and butyrate-producing bacteria decreased in the LG group compared with the NG group. Correlation analysis found a positive correlation among colonic butyrate, butyrate-producing bacteria and the serum glucose metabolism index. Moreover, the hepatic cAMP concentration, PKA activity, GCN5 phosphorylation, and the expression of G6P and PEPCK were decreased and PGC1-α acetylation was increased in the LG group compared with the NG group. In vitro, sodium butyrate significantly stimulated the cAMP concentration, PKA activity, GCN5 phosphorylation, and the expression of G6P and PEPCK and inhibited PGC-1α acetylation in the LG group of hepatocytes from late-pregnancy sows. Interestingly, another in vivo experiment showed that dietary 1-kestose, a natural regulator of gut bacteria, significantly increased butyrate and butyrate-producing bacteria, and improved the reproductive performance and serum glucose metabolism index in late-pregnancy sows. Taken together, we found that targeting gut microbiota-derived butyrate could improve hepatic gluconeogenesis through the cAMP-PKA-GCN5 pathway in late-pregnancy sows.
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Affiliation(s)
- Longshan Qin
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Weilei Yao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Tongxin Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Taimin Jin
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Baoyin Guo
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Shu Wen
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Feiruo Huang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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14
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Wang Y, Li L, Wu Y, Zhang S, Ju Q, Yang Y, Jin Y, Shi H, Sun C. CD44 deficiency represses neuroinflammation and rescues dopaminergic neurons in a mouse model of Parkinson's disease. Pharmacol Res 2022; 177:106133. [PMID: 35182746 DOI: 10.1016/j.phrs.2022.106133] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/02/2022] [Accepted: 02/13/2022] [Indexed: 02/07/2023]
Abstract
CD44 is a transmembrane protein that transduces extracellular stimuli to immune response. Neuroinflammation is a causative factor in neurodegenerative diseases, such as Parkinson's disease (PD). Owing to its role in inflammation, this study investigated whether CD44 is involved in the pathological progression of PD. Our data showed that CD44 deficiency largely abolished proinflammatory cytokine expression in primary microglia and astrocytes. In PD model mice, CD44 knockout improved behavioral defects, prevented TH loss in the SNpc and striatum, and blocked activation of microglia and astrocytes. Moreover, CD44 neutralization by anti-CD44 antibody recapitulated the phenotypes observed in CD44 knockout mice. Mechanistically, CD44 neutralization blocked TLR4 expression and NF-κB p65 nuclear translocation induced by lipopolysaccharide in BV2 cells. Overall, our results indicate that CD44 deficiency has a beneficial role against PD, which is likely due to repression of the TLR4/NF-κB axis, leading to reduced neuroinflammation. Therefore, CD44 might be a therapeutic target for the development of anti-PD agents.
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Affiliation(s)
- Yuejun Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Li Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Yuting Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Shouping Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Qianqian Ju
- Department of Cardiothoracic Surgery, Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Diseases, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China; Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yinuo Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Yan Jin
- School of Life Sciences, Nantong University, Nantong, China.
| | - Hui Shi
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education; Co-innovation Center of Neuroregeneration; NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China; Department of Cardiothoracic Surgery, Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Diseases, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China.
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15
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Yang Y, Zhang S, Guan J, Jiang Y, Zhang J, Luo L, Sun C. SIRT1 attenuates neuroinflammation by deacetylating HSPA4 in a mouse model of Parkinson's disease. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166365. [PMID: 35158021 DOI: 10.1016/j.bbadis.2022.166365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/21/2022] [Accepted: 02/07/2022] [Indexed: 02/08/2023]
Abstract
As a deacetylase, SIRT1 plays essential roles in various physiological events, from development to lifespan regulation. SIRT1 has been shown neuroprotective effects in neurodegeneration disorders such as Parkinson's disease (PD). However, the underlying molecular mechanisms are still not well understood. Here, we generated transgenic mice with increased expression of Sirt1 in the brain and examined the potential roles of SIRT1 in PD. Our data showed that SIRT1 repressed proinflammatory cytokine expression both in microglia and astrocytes. In MPTP induced PD model mice, lower levels of microglia and astrocyte activation were observed in SIRT1 transgenic mice. Moreover, the tyrosine hydroxylase (TH) loss in the substantia nigra pars compacta (SNpc) and striatum induced by MPTP was also attenuated by SIRT1. As a consequence, the behavioral defects induced by MPTP were largely prevented in SIRT1 transgenic mice. Mechanistically, SIRT1 interacts with heat shock 70 kDa protein 4 (HSPA4) and deacetylates it at 305, 351 and 605 lysine residues. This deacetylation modification induces the nuclear translocation of HSPA4 and thus to repress proinflammatory cytokine expression. On the contrary, mutated HSPA4, in which 305/351/605 lysine residues were replaced with arginine, was mainly localized in the cytoplasm and losses its repression on proinflammatory cytokine expression. Taken together, our data indicate that SIRT1 plays beneficial roles in PD model mice, which is likely due to, at least in part, its anti-inflammation activity in glial cells by deacetylating HSPA4. Furthermore, HSPA4 might be a druggable target for developing novel agents for treating neuroinflammation associated disorders such as PD.
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Affiliation(s)
- Yinuo Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Shouping Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Jindong Guan
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Yuhui Jiang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Jing Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Lan Luo
- Department of Geriatrics, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, China.
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China; Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China.
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16
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Wang R, Kairen C, Li L, Zhang L, Gong H, Huang X. Overexpression of NDUFV1 alleviates renal damage by improving mitochondrial function in unilateral ureteral obstruction model mice. Cell Biol Int 2021; 46:381-390. [PMID: 34936716 DOI: 10.1002/cbin.11736] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/27/2021] [Accepted: 12/04/2021] [Indexed: 12/30/2022]
Abstract
Mitochondrial homeostasis plays essential role for the proper functioning of the kidney. NADH-ubiquinone oxidoreductase core subunit V1 (NDUFV1) is an enzyme in the complex I of electron transport chain (ETC) in mitochondria. In the present study, we examined the effects of NDUFV1 on renal function in unilateral ureteral obstruction (UUO) model mice. Our data showed that increased expression of NDUFV1 improves kidney function as evidenced by the decreases in blood urea nitrogen and serum creatinine in UUO mice. Moreover, NDUFV1 also maintains renal structures and alleviates renal fibrosis induced by UUO surgery. Mechanistically, NDUFV1 mitigates the increased oxidative stress in the kidney in UUO model mice. Meanwhile, increased expression of NDUFV1 in the kidney improves the integrity of the complex I and potentiates the complex I activity. Overall, these results indicate that the ETC complex I plays a beneficial role against renal dysfunction induced by acute kidney injury such as UUO. Therefore, NDUFV1 might be a druggable target for developing agents for dealing with disabled mitochondria-associated renal diseases.
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Affiliation(s)
- Ruiting Wang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Chen Kairen
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lu Li
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lingling Zhang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Haifeng Gong
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
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17
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Lim Y, Jeong A, Kwon DH, Lee YU, Kim YK, Ahn Y, Kook T, Park WJ, Kook H. P300/CBP-Associated Factor Activates Cardiac Fibroblasts by SMAD2 Acetylation. Int J Mol Sci 2021; 22:9944. [PMID: 34576109 PMCID: PMC8472677 DOI: 10.3390/ijms22189944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/31/2021] [Accepted: 09/10/2021] [Indexed: 01/07/2023] Open
Abstract
Various heart diseases cause cardiac remodeling, which in turn leads to ineffective contraction. Although it is an adaptive response to injury, cardiac fibrosis contributes to this remodeling, for which the reactivation of quiescent myofibroblasts is a key feature. In the present study, we investigated the role of the p300/CBP-associated factor (PCAF), a histone acetyltransferase, in the activation of cardiac fibroblasts. An intraperitoneal (i.p.) injection of a high dose (160 mg/kg) of isoproterenol (ISP) induced cardiac fibrosis and reduced the amount of the PCAF in cardiac fibroblasts in the mouse heart. However, the PCAF activity was significantly increased in cardiac fibroblasts, but not in cardiomyocytes, obtained from ISP-administered mice. An in vitro study using human cardiac fibroblast cells recapitulated the in vivo results; an treatment with transforming growth factor-β1 (TGF-β1) reduced the PCAF, whereas it activated the PCAF in the fibroblasts. PCAF siRNA attenuated the TGF-β1-induced increase in and translocation of fibrosis marker proteins. PCAF siRNA blocked TGF-β1-mediated gel contraction and cell migration. The PCAF directly interacted with and acetylated mothers against decapentaplegic homolog 2 (SMAD2). PCAF siRNA prevented TGF-β1-induced phosphorylation and the nuclear localization of SMAD2. These results suggest that the increase in PCAF activity during cardiac fibrosis may participate in SMAD2 acetylation and thereby in its activation.
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Affiliation(s)
- Yongwoon Lim
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- BK21 Plus Center for Creative Biomedical Scientists, Chonnam National University, Gwangju 61469, Korea
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea
| | - Anna Jeong
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- BK21 Plus Center for Creative Biomedical Scientists, Chonnam National University, Gwangju 61469, Korea
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University, Hwasun 58128, Korea
| | - Duk-Hwa Kwon
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- BK21 Plus Center for Creative Biomedical Scientists, Chonnam National University, Gwangju 61469, Korea
| | - Yeong-Un Lee
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- Health and Environment Research Institute of Gwangju, 584, Mujin-daero, Seo-gu, Gwangju 61954, Korea
| | - Young-Kook Kim
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- BK21 Plus Center for Creative Biomedical Scientists, Chonnam National University, Gwangju 61469, Korea
- Department of Biochemistry, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea
| | - Youngkeun Ahn
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- Department of Cardiology, Chonnam National University Hospital, Gwangju 61469, Korea
| | - Taewon Kook
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- College of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Korea;
| | - Woo-Jin Park
- College of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Korea;
| | - Hyun Kook
- Department of Pharmacology, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.L.); (A.J.); (D.-H.K.); (Y.-U.L.); (T.K.)
- Basic Research Laboratory for Vascular Remodeling, Chonnam National University Medical School, Hwasun 58128, Jeollanamdo, Korea; (Y.-K.K.); (Y.A.)
- BK21 Plus Center for Creative Biomedical Scientists, Chonnam National University, Gwangju 61469, Korea
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18
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Yuan J, Ju Q, Zhu J, Jiang Y, Yang X, Liu X, Ma J, Sun C, Shi J. RASSF9 promotes NSCLC cell proliferation by activating the MEK/ERK axis. Cell Death Discov 2021; 7:199. [PMID: 34341331 PMCID: PMC8329231 DOI: 10.1038/s41420-021-00583-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/04/2021] [Accepted: 07/14/2021] [Indexed: 12/24/2022] Open
Abstract
The RAS-associated domain family 9 (RASSF9), a RAS-associated domain family gene, is expressed in a variety of tissues. However, its roles in tumorigenesis, particularly in non-small cell lung cancer (NSCLC), are still not understood well. In the present study, we aimed to examine the potential roles of RASSF9 in NSCLC and the underlying mechanisms. Our data showed that RASSF9 expression was upregulated in NSCLC tissues and cell lines. Increased expression of RASSF9 promotes NSCLC cell proliferation. On the contrary, knockdown of RASSF9 represses cell proliferation. Moreover, the effects of RASSF9 on NSCLC cell proliferation were further confirmed in vivo by using a subcutaneous tumor model. Mechanistically, pharmacological intervention studies revealed that the MEK/ERK axis is targeted by RASSF9 for transducing its regulatory roles on NSCLC cell proliferation. Collectively, our data indicate that RASSF9 plays a key role in tumorigenesis of NSCLC by stimulating tumor cell proliferation, which relies on activation of the MEK/ERK axis. Thus, RASSF9 might be a druggable target for developing novel agents for treating NSCLC.
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Affiliation(s)
- Jun Yuan
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China
| | - Qianqian Ju
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China.,Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Jun Zhu
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China
| | - Yun Jiang
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China
| | - Xuechao Yang
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoyu Liu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Jinyu Ma
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Cheng Sun
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China. .,Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China. .,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.
| | - Jiahai Shi
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Nantong Clinical Medical Research Center of Cardiothoracic Disease, and Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, China.
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19
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Garcinol promotes hepatic gluconeogenesis by inhibiting P300/CBP-associated factor in late-pregnant sows. Br J Nutr 2021; 126:1-8. [PMID: 32967737 DOI: 10.1017/s000711452000375x] [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] [Indexed: 11/06/2022]
Abstract
Disorder of hepatic glucose metabolism is the characteristic of late-pregnant sows. The purpose of our study was to look into the mechanism of garcinol on the improvement of hepatic gluconeogenic enzyme in late-pregnant sows. Thirty second- and third-parity sows (Duroc × Yorkshire × Landrace, n 10/diet) were fed a basal diet (control) or that diet supplemented with 100 mg/kg (Low Gar) or 500 mg/kg (High Gar) garcinol from day 90 of gestation to the end of farrowing. The livers were processed to measure enzymatic activity. Hepatocytes from pregnant sows were transfected with P300/CBP-associating factor (PCAF) small interfering RNA (siRNA) or treated with garcinol. Dietary garcinol had no effect on average daily feed intake, body weight (BW), backfat and BW gain of late-pregnant sows. Garcinol promoted plasma glucose levels in pregnant sows and newborn piglets. Garcinol up-regulated hepatic gluconeogenic enzyme expression and decreased PCAF activity. Garcinol had no effect on the expression of PPAR-γ co-activator 1α (PGC-1α) and Forkhead box O1 (FOXO1) but significantly increased their activity and decreased their acetylation in late-pregnant sows. Transfection of PCAF siRNA to hepatocytes of pregnant sows increased PGC-1α and FOXO1 activities. Furthermore, in hepatocytes of pregnant sows, garcinol treatment also up-regulated the activities of PGC-1α and FOXO1 and inhibited the acetylation of PGC-1α and FOXO1. Garcinol improves hepatic gluconeogenic enzyme expression in late-pregnant sows, and this may be due to the mechanism of down-regulating the acetylation of PGC-1α and FOXO1 induced by PCAF in isolated hepatocytes.
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20
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Chen Y, Jiang Y, Yang Y, Huang X, Sun C. SIRT1 Protects Dopaminergic Neurons in Parkinson's Disease Models via PGC-1α-Mediated Mitochondrial Biogenesis. Neurotox Res 2021; 39:1393-1404. [PMID: 34251648 DOI: 10.1007/s12640-021-00392-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/19/2021] [Accepted: 07/01/2021] [Indexed: 11/25/2022]
Abstract
SIRT1 is a deacetylase with multiple physiological functions by targeting histones and non-histone proteins. It has been shown that SIRT1 activation is involved in neuroprotection in Parkinson's disease (PD) models. In the present study, we provided direct evidences showing the neuroprotective roles of SIRT1 in dopaminergic neurons. Our data showed that increased expression of SIRT1 plays beneficial roles against MPP+ insults in SH-SY5Y cells and primary dopaminergic neurons, including increased cell viability, reduced LDH release, improved the mitochondrial membrane potential (MMP), and attenuated cell apoptosis. On the contrary, knockdown of SIRT1 further aggravated cell injuries induced by MPP+. Moreover, mutated SIRT1 without deacetylase activity (SIRT1 H363Y) failed to protect dopaminergic neurons from MPP+ injuries. Mechanistically, SIRT1 improved PGC-1α expression and mitochondrial biogenesis. Knockdown of PGC-1α almost completely abolished the neuroprotective roles of SIRT1 in SH-SY5Y cells. Collectively, our data indicate that SIRT1 has neuroprotective roles in dopaminergic neurons, which is dependent upon PGC-1α-mediated mitochondrial biogenesis. These findings suggest that SIRT1 may hold great therapeutic potentials for treating dopaminergic neuron loss associated disorders such as PD.
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Affiliation(s)
- Yu Chen
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Yuhui Jiang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Yinuo Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China
| | - Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, China
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, 19 Qixiu Road, Nantong, China.
- Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, Institute of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, 20 Xishi Road, Nantong, China.
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21
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Liu Y, Yang H, Liu X, Gu H, Li Y, Sun C. Protein acetylation: a novel modus of obesity regulation. J Mol Med (Berl) 2021; 99:1221-1235. [PMID: 34061242 DOI: 10.1007/s00109-021-02082-2] [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: 09/28/2020] [Revised: 03/09/2021] [Accepted: 04/21/2021] [Indexed: 11/27/2022]
Abstract
Obesity is a chronic epidemic disease worldwide which has become one of the important public health issues. It is a process that excessive accumulation of adipose tissue caused by long-term energy intake exceeding energy expenditure. So far, the prevention and treatment strategies of obesity on individuals and population have not been successful in the long term. Acetylation is one of the most common ways of protein post-translational modification (PTM). It exists on thousands of non-histone proteins in almost every cell chamber. It has many influences on protein levels and metabolome levels, which is involved in a variety of metabolic reactions, including sugar metabolism, tricarboxylic acid cycle, and fatty acid metabolism, which are closely related to biological activities. Studies have shown that protein acetylation levels are dynamically regulated by lysine acetyltransferases (KATs) and lysine deacetylases (KDACs). Protein acetylation modifies protein-protein and protein-DNA interactions and regulates the activity of enzymes or cytokines which is related to obesity in order to participate in the occurrence and treatment of obesity-related metabolic diseases. Therefore, we speculated that acetylation was likely to become effective means of controlling obesity in the future. In consequence, this review focuses on the mechanisms of protein acetylation controlled obesity, to provide theoretical basis for controlling obesity and curing obesity-related diseases, which is a significance for regulating obesity in the future. This review will focus on the role of protein acetylation in controlling obesity.
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Affiliation(s)
- Yuexia Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hong Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xuanchen Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Huihui Gu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Yizhou Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chao Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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22
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Hu J, Xia X, Zhao Q, Li S. Lysine acetylation of NKG2D ligand Rae-1 stabilizes the protein and sensitizes tumor cells to NKG2D immune surveillance. Cancer Lett 2021; 502:143-153. [PMID: 33279621 PMCID: PMC10142196 DOI: 10.1016/j.canlet.2020.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 02/08/2023]
Abstract
Shedding, loss of expression, or internalization of natural killer group 2, member D (NKG2D) ligands from the tumor cell surface leads to immune evasion, which is associated with poor prognosis in patients with cancer. In many cancers, matrix metalloproteinases cause the proteolytic shedding of NKG2D ligands. However, it remained unclear how to protect NKG2D ligands from shedding. Here, we showed that the shedding of the mouse NKG2D ligand Rae-1 can be prevented by two critical acetyltransferases, GCN5 and PCAF, which acetylate the lysine residues of Rae-1 to avoid shedding both in vitro and in vivo. In contrast, mutations at lysines 80 and 87 of Rae-1 abrogated this acetylation and thereby desensitized tumor cells to NKG2D-dependent immune surveillance. Notably, the protein levels of GCN5 correlated with the expression levels of the human NKG2D ligand ULPB1 in a human tumor tissue microarray and, more importantly, with prolonged overall survival in many cancers. Our results suggest that the acetylation of Rae-1 protein at lysines 80 and 87 by GCN5 and PCAF protects Rae-1 from shedding so as to activate NKG2D-dependent immune surveillance. This discovery may shed light on new targets for NKG2D immunotherapy in cancer treatment.
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Affiliation(s)
- Jiemiao Hu
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 853, Houston, TX, 77030, USA
| | - Xueqing Xia
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 853, Houston, TX, 77030, USA
| | - Qingnan Zhao
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 853, Houston, TX, 77030, USA
| | - Shulin Li
- Division of Pediatrics, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 853, Houston, TX, 77030, USA.
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23
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Li P, Liu Y, Qin X, Chen K, Wang R, Yuan L, Chen X, Hao C, Huang X. SIRT1 attenuates renal fibrosis by repressing HIF-2α. Cell Death Discov 2021; 7:59. [PMID: 33758176 PMCID: PMC7987992 DOI: 10.1038/s41420-021-00443-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/30/2021] [Accepted: 02/26/2021] [Indexed: 12/27/2022] Open
Abstract
Sirtuin 1 (SIRT1) is a nicotinamide adenine dinucleotide (NAD+)-dependent deacetylase belonging to class III histone deacetylases. Previous studies have shown that SIRT1 is involved in kidney physiology regulation and protects the kidney from various pathological factors. However, the underlying mechanisms behind its function have yet to be fully elucidated. In our study, we found that ablation of Sirt1 in renal interstitial cells resulted in more severe renal damage and fibrosis in unilateral ureteral obstruction (UUO) model mice. We also observed that hypoxia-inducible factor (HIF)-2α expression was increased in Sirt1 conditional knockout mice, suggesting that HIF-2α might be a substrate of SIRT1, mediating its renoprotective roles. Therefore, we bred Hif2a deficient mice and subjected them to renal trauma through UUO surgery, ultimately finding that Hif2a ablation attenuated renal fibrogenesis induced by UUO injury. Moreover, in cultured NRK-49F cells, activation of SIRT1 decreased HIF-2α and fibrotic gene expressions, and inhibition of SIRT1 stimulated HIF-2α and fibrotic gene expressions. Co-immunoprecipitation analysis revealed that SIRT1 directly interacted with and deacetylated HIF-2α. Together, our data indicate that SIRT1 plays a protective role in renal damage and fibrosis, which is likely due to inhibition of HIF-2α.
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Affiliation(s)
- Peipei Li
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China
| | - Yue Liu
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, 8 Jianshe Road, 226300, Nantong, Jiangsu, China
| | - Xiaogang Qin
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, 8 Jianshe Road, 226300, Nantong, Jiangsu, China
| | - Kairen Chen
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China
| | - Ruiting Wang
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China
| | - Li Yuan
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China
| | - Xiaolan Chen
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China
| | - Chuanming Hao
- Division of Nephrology, Huashan Hospital, and Nephrology Research Institute, Fudan University, 12 Urumqi Middle Road, Shanghai, China
| | - Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, 20 Xisi Road, 226001, Nantong, Jiangsu, China.
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24
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Maude H, Sanchez-Cabanillas C, Cebola I. Epigenetics of Hepatic Insulin Resistance. Front Endocrinol (Lausanne) 2021; 12:681356. [PMID: 34046015 PMCID: PMC8147868 DOI: 10.3389/fendo.2021.681356] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/20/2021] [Indexed: 01/14/2023] Open
Abstract
Insulin resistance (IR) is largely recognized as a unifying feature that underlies metabolic dysfunction. Both lifestyle and genetic factors contribute to IR. Work from recent years has demonstrated that the epigenome may constitute an interface where different signals may converge to promote IR gene expression programs. Here, we review the current knowledge of the role of epigenetics in hepatic IR, focusing on the roles of DNA methylation and histone post-translational modifications. We discuss the broad epigenetic changes observed in the insulin resistant liver and its associated pathophysiological states and leverage on the wealth of 'omics' studies performed to discuss efforts in pinpointing specific loci that are disrupted by these changes. We envision that future studies, with increased genomic resolution and larger cohorts, will further the identification of biomarkers of early onset hepatic IR and assist the development of targeted interventions. Furthermore, there is growing evidence to suggest that persistent epigenetic marks may be acquired over prolonged exposure to disease or deleterious exposures, highlighting the need for preventative medicine and long-term lifestyle adjustments to avoid irreversible or long-term alterations in gene expression.
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Affiliation(s)
| | | | - Inês Cebola
- *Correspondence: Hannah Maude, ; Inês Cebola,
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25
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Fiorentino F, Mai A, Rotili D. Lysine Acetyltransferase Inhibitors From Natural Sources. Front Pharmacol 2020; 11:1243. [PMID: 32903408 PMCID: PMC7434864 DOI: 10.3389/fphar.2020.01243] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/29/2020] [Indexed: 12/22/2022] Open
Abstract
Acetylation of histone and non-histone protein lysine residues has been widely described as a critical modulator of several cell functions in humans. Lysine acetyltransferases (KATs) catalyse the transfer of acetyl groups on substrate proteins and are involved in multiple physiological processes such as cell signalling, metabolism, gene regulation, and apoptosis. Given the pivotal role of acetylation, the alteration of KATs enzymatic activity has been clearly linked to various cellular dysfunctions leading to several inflammatory, metabolic, neurological, and cancer diseases. Hence, the use KAT inhibitors (KATi) has been suggested as a potentially successful strategy to reverse or prevent these conditions. To date, only a few KATi have proven to be potential drug candidates, and there is still a keen interest in designing molecules showing drug-like properties from both pharmacodynamics and pharmacokinetics point of view. Increasing literature evidence has been highlighting natural compounds as a wide source of molecular scaffolds for developing therapeutic agents, including KATi. In fact, several polyphenols, catechins, quinones, and peptides obtained from natural sources (including nuts, oils, root extracts, and fungi metabolites) have been described as promising KATi. Here we summarize the features of this class of compounds, describing their modes of action, structure-activity relationships and (semi)-synthetic derivatives, with the aim of assisting the development of novel more potent, isoform selective and drug-like KATi.
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Affiliation(s)
| | - Antonello Mai
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, Italy
| | - Dante Rotili
- Department of Chemistry and Technology of Drugs, Sapienza University of Rome, Rome, Italy
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26
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Zhang Y, Jiang K, Xie G, Ding J, Peng S, Liu X, Sun C, Tang X. FGF21 impedes peripheral myelin development by stimulating p38 MAPK/c-Jun axis. J Cell Physiol 2020; 236:1345-1361. [PMID: 32657446 DOI: 10.1002/jcp.29942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/18/2020] [Accepted: 07/02/2020] [Indexed: 01/13/2023]
Abstract
Fibroblast growth factor 21 (FGF21) as a metabolic stress hormone, is mainly secreted by the liver. In addition to its well-defined roles in energy homeostasis, FGF21 has been shown to promote remyelination after injury in the central nervous system. In the current study, we sought to examine the potential roles of FGF21 in the peripheral nervous system (PNS) myelination. In the PNS myelin development, Fgf21 expression was reversely correlated with myelin gene expression. In cultured primary Schwann cells (SCs), the application of recombinant FGF21 greatly attenuates myelination-associated gene expression, including Oct6, Krox20, Mbp, Mpz, and Pmp22. Accordingly, the injection of FGF21 into neonatal rats markedly mitigates the myelination in sciatic nerves. On the contrary, the infusion of the anti-FGF21 antibody accelerates the myelination. Mechanistically, both extracellular signal-regulated kinase (ERK) and p38 mitogen-activated protein kinase (MAPK) were stimulated by FGF21 in SCs and sciatic nerves. Following experiments including pharmaceutical intervention and gene manipulation revealed that the p38 MAPK/c-Jun axis, rather than ERK, is targeted by FGF21 for mediating its repression on myelination in SCs. Taken together, our data provide a new aspect of FGF21 by acting as a negative regulator for the myelin development process in the PNS via activation of p38 MAPK/c-Jun.
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Affiliation(s)
- Yunzhong Zhang
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China.,School of Medicine, Nantong University, Nantong, Jiangsu, China
| | - Ketao Jiang
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Guoqing Xie
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Jie Ding
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Su Peng
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Xiaoyu Liu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
| | - Xin Tang
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregenetation, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, Jiangsu, China
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27
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Lu YF, Xu XP, Lu XP, Zhu Q, Liu G, Bao YT, Wen H, Li YL, Gu W, Zhu WG. SIRT7 activates p53 by enhancing PCAF-mediated MDM2 degradation to arrest the cell cycle. Oncogene 2020; 39:4650-4665. [PMID: 32404984 PMCID: PMC7286819 DOI: 10.1038/s41388-020-1305-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 02/04/2023]
Abstract
Sirtuin 7 (SIRT7), an NAD+-dependent deacetylase, plays vital roles in energy sensing, but the underlying mechanisms of action remain less clear. Here, we report that SIRT7 is required for p53-dependent cell-cycle arrest during glucose deprivation. We show that SIRT7 directly interacts with p300/CBP-associated factor (PCAF) and the affinity for this interaction increases during glucose deprivation. Upon binding, SIRT7 deacetylates PCAF at lysine 720 (K720), which augments PCAF binding to murine double minute (MDM2), the p53 E3 ubiquitin ligase, leading to accelerated MDM2 degradation. This effect results in upregulated expression of the cell-cycle inhibitor, p21Waf1/Cip1, which further leads to cell-cycle arrest and decreased cell viability. These data highlight the importance of the SIRT7–PCAF interaction in regulating p53 activity and cell-cycle progression during conditions of glucose deprivation. This axis may represent a new avenue to design effective therapeutics based on tumor starvation.
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Affiliation(s)
- Ya-Fei Lu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Xiao-Peng Xu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Xiao-Peng Lu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Qian Zhu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Ge Liu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Yan-Tao Bao
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - He Wen
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China
| | - Ying-Lu Li
- Institute for Cancer Genetics, College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA.
| | - Wei Gu
- Institute for Cancer Genetics, College of Physicians and Surgeons, Columbia University, New York, NY, 10032, USA
| | - Wei-Guo Zhu
- Guangdong Key Laboratory of Genome Instability and Human Disease, Shenzhen University International Cancer Center, Department of Biochemistry and Molecular Biology, Shenzhen University School of Medicine, Shenzhen, 518055, China. .,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China. .,Peking University-Tsinghua University Center for Life Sciences, Beijing, 100871, China.
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FGF21 Protects Dopaminergic Neurons in Parkinson's Disease Models Via Repression of Neuroinflammation. Neurotox Res 2020; 37:616-627. [PMID: 31997152 DOI: 10.1007/s12640-019-00151-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/08/2019] [Accepted: 12/11/2019] [Indexed: 12/15/2022]
Abstract
Fibroblast growth factor21 (FGF21), a member of the FGF family, plays multiple biological functions including anti-inflammation, anti-oxidative stress, and anti-apoptosis. It has been shown that FGF21 protects cells from acute injury in several kinds of cells such as islet β-cells, endothelial cells, cardiomyocytes, and dopaminergic neurons. However, whether FGF21 plays neuroprotective roles against Parkinsonian syndrome in vivo has not been elucidated. Our results showed that FGF21 markedly improves cell survival in MPP+-treated SH-SY5Y cells and primary dopaminergic neurons. Furthermore, we treated MPTP-induced Parkinson's disease (PD) model mice with the recombinant FGF21 via intranasal pathway. The results showed that FGF21 treatment significantly improves behavioral performances and prevents tyrosine hydroxylase (TH) loss in the substantia nigra par compacta (SNpc) and striatum. Mechanistically, FGF21 stimulates the AMPK/PGC-1α axis to promote mitochondrial functions. Moreover, FGF21 attenuates microglia and astrocyte activation induced by MPTP, leading to a low level of inflammation in the brain. Our data indicate that FGF21 prevents dopaminergic neuron loss and shows beneficial effects against MPTP-induced PD syndrome in mice, indicating it might be a potent candidate for developing novel drugs to deal with PD.
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Emamgholipour S, Ebrahimi R, Bahiraee A, Niazpour F, Meshkani R. Acetylation and insulin resistance: a focus on metabolic and mitogenic cascades of insulin signaling. Crit Rev Clin Lab Sci 2020:1-19. [DOI: 10.1080/10408363.2019.1699498] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Solaleh Emamgholipour
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reyhane Ebrahimi
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Bahiraee
- Department of Medical Genetics, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Farshad Niazpour
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Meshkani
- Department of Clinical Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Li P, Song X, Zhang D, Guo N, Wu C, Chen K, Liu Y, Yuan L, Chen X, Huang X. Resveratrol improves left ventricular remodeling in chronic kidney disease via Sirt1-mediated regulation of FoxO1 activity and MnSOD expression. Biofactors 2020; 46:168-179. [PMID: 31688999 DOI: 10.1002/biof.1584] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/12/2019] [Indexed: 12/20/2022]
Abstract
Left ventricular remodeling commonly complicates end-stage renal disease following chronic kidney disease (CKD). This study investigated the therapeutic efficacy of resveratrol (RSV), a polyphenolic compound, on left ventricular remodeling in subtotal nephrectomy rats and sought to uncover the underlying molecular mechanisms. Subtotal nephrectomy caused renal dysfunction, such as gradual increases in serum creatinine and blood urea nitrogen, glomerular sclerosis, and tubulointerstitial fibrosis. In addition, subtotal nephrectomy also resulted in significant increases in myocyte cross-sectional area, interstitial and perivascular fibrosis, and left ventricular dilatation. All these detrimental effects were alleviated in the presence of RSV. Mechanistically, RSV treatment led to the upregulation of manganese-containing superoxide dismutase (MnSOD) in the heart. Coimmunoprecipitation studies showed that silent information regulator 1 (Sirt1) bound forkhead box protein O1 (FoxO1) and thus reduced acetylated FoxO1. RSV strengthened this interaction between Sirt1 and FoxO1. Loss of one allele of Sirt1 aggravated renal damage, myocyte hypertrophy, and interstitial fibrosis in nephrectomized mice. Taken together, our data show that Sirt1 is an important mediator for the protective roles of RSV on renal and heart damage in CKD rodent model, and FoxO1 and MnSOD are likely downstream targets of Sirt1. Therefore, Sirt1 might be a potential therapeutic target for the treatment of left ventricular remodeling caused by CKD.
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Affiliation(s)
- Peipei Li
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xiaoli Song
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, Jiangsu, China
| | - Dingwu Zhang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Naifeng Guo
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Chuwen Wu
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Kairen Chen
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Yue Liu
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, Jiangsu, China
| | - Li Yuan
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xiaolan Chen
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
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31
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Chen D, Lu D, Liu H, Xue E, Zhang Y, Shang P, Pan X. Pharmacological blockade of PCAF ameliorates osteoarthritis development via dual inhibition of TNF-α-driven inflammation and ER stress. EBioMedicine 2019; 50:395-407. [PMID: 31735552 PMCID: PMC6921217 DOI: 10.1016/j.ebiom.2019.10.054] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/16/2019] [Accepted: 10/28/2019] [Indexed: 01/10/2023] Open
Abstract
Background Epigenetic mechanisms have been reported to play key roles in osteoarthritis (OA) development. P300/CBP-associated factor (PCAF) is a member of the histone acetyltransferases, which exhibits a strong relationship with endoplasmic reticulum (ER) stress and transcription factor nuclear factor kappa B (NF-κB) signals. Salidroside, a natural histone acetylation inhibitor, showed its anti-inflammatory and anti-apoptotic effects in lipopolysaccharide (LPS)-stimulated microglia cells in our previous study. However, whether Sal has a protective effect against OA remains unknown, and its relationships to PCAF, NF-κB, and the ER stress pathway should be explored further. Methods We identified the role of PCAF in the pathogenesis of OA and determined the chondroprotective effect of Sal on both tumor necrosis factor alpha (TNF-α)-treated human chondrocytes and a destabilized medial meniscus (DMM) mouse OA model. Findings We found increased PCAF expression in human OA cartilage and TNF-α-driven chondrocytes. Meanwhile, silencing of PCAF attenuated nuclear p65 and C/EBP homologous protein levels in chondrocytes upon TNF-α stimulation. Furthermore, Sal was found to specifically bind to the inhibitory site of the PCAF protein structure, which subsequently reversed the TNF-α-induced activation of NF-κB signal and ER stress-related apoptosis in chondrocytes. In addition, the protective effect of Sal and its inhibitory effects on PCAF as well as inflammatory- and ER stress-related markers were also observed in the mouse DMM model. Interpretation Pharmacological blockade of PCAF by Sal ameliorates OA development via inhibition of inflammation and ER stress, which makes Sal a promising therapeutic agents for the treatment of OA.
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Affiliation(s)
- Deheng Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China
| | - Di Lu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China
| | - Haixiao Liu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China
| | - Enxing Xue
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China
| | - Yu Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China
| | - Ping Shang
- Department of Rehabilitation, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China.
| | - Xiaoyun Pan
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China; Bone Research Institute, The Key Orthopaedic Laboratory of Zhejiang Province, 109, Xueyuanxi road, Wenzhou, Zhejiang 325027, China.
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32
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Huang X, Xue H, Ma J, Zhang Y, Zhang J, Liu Y, Qin X, Sun C. Salidroside ameliorates Adriamycin nephropathy in mice by inhibiting β-catenin activity. J Cell Mol Med 2019; 23:4443-4453. [PMID: 30993911 PMCID: PMC6533469 DOI: 10.1111/jcmm.14340] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/21/2019] [Accepted: 04/01/2019] [Indexed: 01/08/2023] Open
Abstract
Salidroside is a major phenylethanoid glycoside in Rhodiola rosea L., a traditional Chinese medicine, with multiple biological activities. It has been shown that salidroside possesses protective effects for alleviating diabetic renal dysfunction, contrast‐induced‐nephropathy and other kidney diseases. However, the involved molecular mechanism was still not understood well. Herein, we examined the protective effects of salidroside in mice with Adriamycin (ADR)‐induced nephropathy and the underlying molecular mechanism. The results showed that salidroside treatment ameliorates proteinuria; improves expressions of nephrin and podocin; and reduces kidney fibrosis and glomerulosclerosis induced by ADR. Mechanistically, ADR induces a robust accumulation of β‐catenin in the nucleus and stimulates its downstream target gene expression. The application of salidroside largely abolishes the nuclear translocation of β‐catenin and thus inhibits its activity. Furthermore, the activation of β‐catenin almost completely counteracts the protective roles of salidroside in ADR‐injured podocytes. Taken together, our data indicate that salidroside ameliorates proteinuria, renal fibrosis and podocyte injury in ADR nephropathy, which may rely on inhibition of β‐catenin signalling pathway.
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Affiliation(s)
- Xinzhong Huang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Haiyan Xue
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Jinyu Ma
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
| | | | - Jing Zhang
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
| | - Yue Liu
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, China
| | - Xiaogang Qin
- Department of Nephrology, Traditional Chinese Medicine Hospital of Tongzhou District, Nantong, China
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Nantong University, Nantong, China
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Savoia M, Cencioni C, Mori M, Atlante S, Zaccagnini G, Devanna P, Di Marcotullio L, Botta B, Martelli F, Zeiher AM, Pontecorvi A, Farsetti A, Spallotta F, Gaetano C. P300/CBP‐associated factor regulates transcription and function of isocitrate dehydrogenase 2 during muscle differentiation. FASEB J 2018; 33:4107-4123. [DOI: 10.1096/fj.201800788r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Matteo Savoia
- Division of Cardiovascular EpigeneticsDepartment of CardiologyGoethe University Frankfurt am Main Germany
| | - Chiara Cencioni
- Internal Medicine Clinic IIIDepartment of CardiologyGoethe University Frankfurt am Main Germany
| | - Mattia Mori
- Department of Biotechnology, Chemistry, and PharmacyUniversity of Siena Siena Italy
| | - Sandra Atlante
- Division of Cardiovascular EpigeneticsDepartment of CardiologyGoethe University Frankfurt am Main Germany
| | - Germana Zaccagnini
- Molecular Cardiology LaboratoryIstituto di Ricovero e Cura a Carattere Scientifico Policlinico San Donato, San Donato Milanese Milan Italy
| | - Paolo Devanna
- Neurogenetics of Vocal Communication GroupMax Plank Institute for Psycholinguistics Nijmegen The Netherlands
| | - Lucia Di Marcotullio
- Department of Molecular MedicineSapienza University of Rome Rome Italy
- Istituto Pasteur–Fondazione Cenci BolognettiUniversity La Sapienza Rome Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del FarmacoSapienza University of Rome Rome Italy
| | - Fabio Martelli
- Molecular Cardiology LaboratoryIstituto di Ricovero e Cura a Carattere Scientifico Policlinico San Donato, San Donato Milanese Milan Italy
| | - Andreas M. Zeiher
- Internal Medicine Clinic IIIDepartment of CardiologyGoethe University Frankfurt am Main Germany
| | - Alfredo Pontecorvi
- Institute of Medical PathologyUniversità Cattolica del Sacro Cuore di Roma Rome Italy
- Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico Rome Italy
| | - Antonella Farsetti
- National Research CouncilInstitute of Cell Biology and Neurobiology, Monterotondo Rome Italy
| | - Francesco Spallotta
- Division of Cardiovascular EpigeneticsDepartment of CardiologyGoethe University Frankfurt am Main Germany
| | - Carlo Gaetano
- Laboratorio di EpigeneticaIstituti Clinici Scientifici Maugeri Pavia Italy
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Wang T, Yao W, Shao Y, Zheng R, Huang F. PCAF fine-tunes hepatic metabolic syndrome, inflammatory disease, and cancer. J Cell Mol Med 2018; 22:5787-5800. [PMID: 30216660 PMCID: PMC6237576 DOI: 10.1111/jcmm.13877] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 08/07/2018] [Indexed: 02/07/2023] Open
Abstract
The P300/CBP‐associating factor (PCAF), a histone acetyltransferase, is involved in metabolic and pathogenic diseases, particularly of the liver. The effects of PCAF on fine‐tuning liver diseases are extremely complex and vary according to different pathological conditions. This enzyme has dichotomous functions, depending on differently modified sites, which regulate the activities of various enzymes, metabolic functions, and gene expression. Here, we summarize the most recent findings on the functions and targets of PCAF in various metabolic and immunological processes in the liver and review these new discoveries and models of PCAF biology in three areas: hepatic metabolic syndrome, inflammatory disease, and cancer. Finally, we discuss the potential implications of these findings for therapeutic interventions in liver diseases.
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Affiliation(s)
- Tongxin Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Weilei Yao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yafei Shao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ruilong Zheng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Feiruo Huang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
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35
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Suryanarayanan V, Rajavel T, Devi KP, Singh SK. Structure based identification and biological evaluation of novel and potent inhibitors of PCAF catalytic domain. Int J Biol Macromol 2018; 120:823-834. [PMID: 30118769 DOI: 10.1016/j.ijbiomac.2018.08.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 12/14/2022]
Abstract
p300/CBP Associated Factor (PCAF), a GNAT family member protein, represent a valid target for therapeutic interventions since its dysfunction has implicated in variety of diseases like cancer, diabetes, inflammatory diseases, etc. Despite its potential for therapeutics, only a small number of PCAF inhibitors were reported. Hence, in this study, the catalytic domain of PCAF was explored to screen novel, potent and cell permeable inhibitor from three small molecule databases like Life Chemical, Maybridge and Chembridge by using Structure Based Virtual Screening (SBVS) method. Further, Induced Fit Docking, Binding Free Energy calculation, Single Point Energy calculation and Molecular Dynamics Simulation were performed on selected hits. In silico results revealed that F2209-0381 has higher binding energy of -109.722 and have greater cell permeability (QPPCaco = 1456.764; QPPMDCK = 742.941) than rest of hits. Cytotoxicity effect and protein expression analysis of F2209-0381 on A549 cells reveals that it exhibited strong inhibition with IC50 value of 58.31 μg/ml and significantly reduced the expression of PCAF after 72 h time point. Thus, this study warrants that F2209-0381 could become a novel, potent and cell permeable drug of PCAF thereby it could combat its mediated diseases.
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Affiliation(s)
- Venkatesan Suryanarayanan
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Tamilselvam Rajavel
- Department of Biotechnology, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India
| | - Sanjeev Kumar Singh
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi 630 004, Tamil Nadu, India.
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36
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Lysine acetyltransferase inhibitors: structure-activity relationships and potential therapeutic implications. Future Med Chem 2018; 10:1067-1091. [PMID: 29676588 DOI: 10.4155/fmc-2017-0244] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Lysine acetylation is a post-translational modification of both histone and nonhistone proteins that is catalyzed by lysine acetyltransferases and plays a key role in numerous biological contexts. The dysregulation of this enzyme activity is implicated in many human pathologies such as cancer, neurological and inflammatory disorders. Many lysine acetyltransferase inhibitors (KATi) have been developed so far, but there is still the need for new, more potent, metabolically stable and selective KATi as chemical tools for studying KAT biology and/or as potential therapeutic agents. This review will examine the features of KAT enzymes and related diseases, with particular emphasis on KATi (bisubstrate analogs, natural compounds and synthetic derivatives), analyzing their mechanism of action, structure-activity relationships, pharmacokinetic/pharmacodynamic properties and potential future applications.
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Bondy-Chorney E, Denoncourt A, Sai Y, Downey M. Nonhistone targets of KAT2A and KAT2B implicated in cancer biology 1. Biochem Cell Biol 2018; 97:30-45. [PMID: 29671337 DOI: 10.1139/bcb-2017-0297] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Lysine acetylation is a critical post-translation modification that can impact a protein's localization, stability, and function. Originally thought to only occur on histones, we now know thousands of nonhistone proteins are also acetylated. In conjunction with many other proteins, lysine acetyltransferases (KATs) are incorporated into large protein complexes that carry out these modifications. In this review we focus on the contribution of two KATs, KAT2A and KAT2B, and their potential roles in the development and progression of cancer. Systems biology demands that we take a broad look at protein function rather than focusing on individual pathways or targets. As such, in this review we examine KAT2A/2B-directed nonhistone protein acetylations in cancer in the context of the 10 "Hallmarks of Cancer", as defined by Hanahan and Weinberg. By focusing on specific examples of KAT2A/2B-directed acetylations with well-defined mechanisms or strong links to a cancer phenotype, we aim to reinforce the complex role that these enzymes play in cancer biology.
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Affiliation(s)
- Emma Bondy-Chorney
- Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada.,Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada
| | - Alix Denoncourt
- Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada.,Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada
| | - Yuka Sai
- Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada.,Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada
| | - Michael Downey
- Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada.,Department of Cellular and Molecular Medicine and Ottawa Institute of Systems Biology, 451 Smyth Rd., Ottawa, ON KIH 8M5, Canada
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Peng S, Wang C, Ma J, Jiang K, Jiang Y, Gu X, Sun C. Achyranthes bidentata polypeptide protects dopaminergic neurons from apoptosis in Parkinson's disease models both in vitro and in vivo. Br J Pharmacol 2018; 175:631-643. [PMID: 29181847 DOI: 10.1111/bph.14110] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 11/14/2017] [Accepted: 11/19/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Parkinson's disease (PD) is a neurodegenerative disorder closely associated with dopaminergic neuron loss. It is well documented that Achyranthes bidentata polypeptides (ABPP) are potent neuroprotective agents in several kinds of neurons. Therefore, we proposed that ABPP might play a beneficial role against PD by protecting dopaminergic neurons from apoptosis. EXPERIMENTAL APPROACH SH-SY5Y cells and primary rat dopaminergic neurons were pretreated with ABPP fraction k (ABPPk), a purified fraction of ABPP, and then the cells were exposed to 1-methyl-4-phenylpyridinium iodide (MPP+ ) to induce apoptosis. Cell viability, LDH activity, a Tunel assay and protein levels of Bcl-2 and Bax were analysed. In an in vivo PD model induced by MPTP, ABPPk was intranasally delivered to mice. Behavioural tests, immunohistochemistry, immunostaining, Nissl staining, qRT-PCR and Western blot were employed to evaluate the potential effects of ABPPk on PD in mice. KEY RESULTS The application of ABPPk markedly enhanced the viability of SH-SY5Y cells and primary dopaminergic neurons treated with neurotoxic agent MPP+ . In an in vivo MPTP-induced PD model, ABPPk significantly improved behavioural performances and prevented tyrosine hydroxylase loss in the substantia nigra pars compacta and striatum. Furthermore, we showed that MPTP-induced astrocyte and microglia activation were largely attenuated by ABPPk, leading to low levels of neuroinflammation and a downregulation of the apoptotic signalling pathway. CONCLUSION AND IMPLICATIONS Taken together, our data show that ABPPk protects dopaminergic neurons from apoptosis, suggesting that ABPPk might be an effective intervention for treating the neuron loss associated with disorders such as PD.
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Affiliation(s)
- Su Peng
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Caiping Wang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Jinyu Ma
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Ketao Jiang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Yuhui Jiang
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Xiaosong Gu
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
| | - Cheng Sun
- Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, China
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39
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Peng S, Xu L, Ma JY, Gu XS, Sun C. Achyranthes bidentata polypeptide protects dopaminergic neurons from apoptosis induced by rotenone and 6-hydroxydopamine. Neural Regen Res 2018; 13:1981-1987. [PMID: 30233073 PMCID: PMC6183036 DOI: 10.4103/1673-5374.239446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
It has been well documented that Achyranthes bidentata polypeptides (ABPPs) are potent neuroprotective agents in several types of neurons. However, whether ABPPs protect dopaminergic neurons from apoptosis induced by neurotoxins is still unknown. This study was designed to observe the effect of ABPPk, a purified fraction of ABPPs, on apoptosis of dopaminergic neurons. SH-5YHY cells and primary dopaminergic neurons were pre-treated with ABPPk (25, 50, or 100 ng/mL) for 12 hours. Cells were then exposed to 6-hydroxydopamine (50 or 150 μM) or rotenone (50 or 200 μM) for 36 hours to induce cell apoptosis. Our results demonstrate that ABPPk markedly increased viability in SH-SY5Y cells and primary dopaminergic neurons, decreased lactate dehydrogenase activity and number of apoptotic dopaminergic neurons, elevated mitochondrial membrane potential, and increased Bcl-2/Bax ratio. These findings suggest that ABPPk protects dopaminergic neurons from apoptosis, and that ABPPk treatment might be an effective intervention for treating dopaminergic neuronal loss associated with disorders such as Parkinson's disease.
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Affiliation(s)
- Su Peng
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Li Xu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Jin-Yu Ma
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Xiao-Song Gu
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province and Ministry of Education, Co-Innovatioin Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
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40
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Dent JR, Martins VF, Svensson K, LaBarge SA, Schlenk NC, Esparza MC, Buckner EH, Meyer GA, Hamilton DL, Schenk S, Philp A. Muscle-specific knockout of general control of amino acid synthesis 5 (GCN5) does not enhance basal or endurance exercise-induced mitochondrial adaptation. Mol Metab 2017; 6:1574-1584. [PMID: 29111103 PMCID: PMC5699915 DOI: 10.1016/j.molmet.2017.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 09/29/2017] [Accepted: 10/10/2017] [Indexed: 12/17/2022] Open
Abstract
Objective Lysine acetylation is an important post-translational modification that regulates metabolic function in skeletal muscle. The acetyltransferase, general control of amino acid synthesis 5 (GCN5), has been proposed as a regulator of mitochondrial biogenesis via its inhibitory action on peroxisome proliferator activated receptor-γ coactivator-1α (PGC-1α). However, the specific contribution of GCN5 to skeletal muscle metabolism and mitochondrial adaptations to endurance exercise in vivo remain to be defined. We aimed to determine whether loss of GCN5 in skeletal muscle enhances mitochondrial density and function, and the adaptive response to endurance exercise training. Methods We used Cre-LoxP methodology to generate mice with muscle-specific knockout of GCN5 (mKO) and floxed, wildtype (WT) littermates. We measured whole-body energy expenditure, as well as markers of mitochondrial density, biogenesis, and function in skeletal muscle from sedentary mice, and mice that performed 20 days of voluntary endurance exercise training. Results Despite successful knockdown of GCN5 activity in skeletal muscle of mKO mice, whole-body energy expenditure as well as skeletal muscle mitochondrial abundance and maximal respiratory capacity were comparable between mKO and WT mice. Further, there were no genotype differences in endurance exercise-mediated mitochondrial biogenesis or increases in PGC-1α protein content. Conclusion These results demonstrate that loss of GCN5 in vivo does not promote metabolic remodeling in mouse skeletal muscle. Development of a novel muscle-specific GCN5 knockout (mKO) mouse model. GCN5 mKO does not affect body composition or 24 h whole-body metabolism. GCN5 mKO mice do not exhibit changes in basal mitochondrial abundance or respiratory capacity. Exercise-induced mitochondrial biogenesis in skeletal muscle is not enhanced in GCN5 mKO mice.
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Affiliation(s)
- Jessica R Dent
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, UK
| | - Vitor F Martins
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA; Biomedical Sciences Graduate Program, University of California, La Jolla, San Diego, CA, USA
| | - Kristoffer Svensson
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA
| | - Samuel A LaBarge
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA
| | - Noah C Schlenk
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA
| | - Mary C Esparza
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA
| | - Elisa H Buckner
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA
| | - Gretchen A Meyer
- Program in Physical Therapy, Washington University School of Medicine, St Louis, MO, USA
| | | | - Simon Schenk
- Department of Orthopaedic Surgery, University of California, La Jolla, San Diego, CA, USA; Biomedical Sciences Graduate Program, University of California, La Jolla, San Diego, CA, USA.
| | - Andrew Philp
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, UK.
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41
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Nie L, Yuan XL, Jiang KT, Jiang YH, Yuan J, Luo L, Cui SW, Sun C. Salsalate Activates Skeletal Muscle Thermogenesis and Protects Mice from High-Fat Diet Induced Metabolic Dysfunction. EBioMedicine 2017; 23:136-145. [PMID: 28801239 PMCID: PMC5605325 DOI: 10.1016/j.ebiom.2017.08.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 12/30/2022] Open
Abstract
Salsalate plays beneficial roles for ameliorating hyperglycemia and dyslipidemia in type 2 diabetes patients, but the underlying mechanisms are still poorly understood. In this study, by administering salsalate to mice fed with high fat diet and examining how salsalate rectifies metabolic dysfunction in these obese mice, we found that salsalate stimulated body temperature and attenuated body weight gain without affecting food intake. Our results showed that salsalate application decreased lipid accumulation in liver and epididymal white adipose tissue (eWAT), inhibited hepatic gluconeogenesis and improved insulin signaling transduction in eWAT. In addition, salsalate increased the expression of genes related to glucose and fatty acid transport and oxidation in skeletal muscle. Our results also showed that expression of genes in mitochondrial uncoupling and mitochondrial electron transport are strengthened by salsalate. Moreover, sarcolipin (Sln) and sarcoplasmic reticulum Ca2 + ATPase 2 (Serca2) in skeletal muscle were enhanced in salsalate-treated mice. Together, our data suggest that the beneficial metabolic effects of salsalate may depend, at least in part, on skeletal muscle thermogenesis via activation of mitochondrial uncoupling and the axis of Sln/Serca2a. Salsalate improves metabolic dysfunction in high-fat diet induced obese mice. Salsalate stimulates energy expenditure by activating skeletal muscle thermogenesis.
It has been well documented that salicylate-based compounds play beneficial roles for treating obesity-related metabolic syndromes and enhanced energy expenditure was thought to be one of the underlying mechanisms. However, the tissues targeted by salicylate for energy expenditure and the involved mechanisms are still not clear. Our data show that, by activating mitochondrial uncoupling and the axis of Sln/Serca2, salsalate stimulates skeletal muscle thermogenesis in high-fat diet induced obese mice. Therefore, we suggest skeletal muscle thermogenesis may account for salsalate-induced energy expenditure and its beneficial metabolic effects in type 2 diabetes patients.
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Affiliation(s)
- Li Nie
- Department of Endocrinology and Metabolic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Xin-Lu Yuan
- Department of Endocrinology and Metabolic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Ke-Tao Jiang
- Key Laboratory for Neuroregeneration of Jiangsu Province, Ministry of Education, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China
| | - Yu-Hui Jiang
- Key Laboratory for Neuroregeneration of Jiangsu Province, Ministry of Education, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China
| | - Jin Yuan
- Department of Endocrinology and Metabolic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Lan Luo
- Department of Geratology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Shi-Wei Cui
- Department of Endocrinology and Metabolic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China.
| | - Cheng Sun
- Key Laboratory for Neuroregeneration of Jiangsu Province, Ministry of Education, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China.
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42
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Metabolism and chromatin dynamics in health and disease. Mol Aspects Med 2017; 54:1-15. [DOI: 10.1016/j.mam.2016.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 09/22/2016] [Accepted: 09/27/2016] [Indexed: 01/04/2023]
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43
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Sharabi K, Lin H, Tavares CDJ, Dominy JE, Camporez JP, Perry RJ, Schilling R, Rines AK, Lee J, Hickey M, Bennion M, Palmer M, Nag PP, Bittker JA, Perez J, Jedrychowski MP, Ozcan U, Gygi SP, Kamenecka TM, Shulman GI, Schreiber SL, Griffin PR, Puigserver P. Selective Chemical Inhibition of PGC-1α Gluconeogenic Activity Ameliorates Type 2 Diabetes. Cell 2017; 169:148-160.e15. [PMID: 28340340 PMCID: PMC5398763 DOI: 10.1016/j.cell.2017.03.001] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 12/22/2016] [Accepted: 02/27/2017] [Indexed: 01/27/2023]
Abstract
Type 2 diabetes (T2D) is a worldwide epidemic with a medical need for additional targeted therapies. Suppression of hepatic glucose production (HGP) effectively ameliorates diabetes and can be exploited for its treatment. We hypothesized that targeting PGC-1α acetylation in the liver, a chemical modification known to inhibit hepatic gluconeogenesis, could be potentially used for treatment of T2D. Thus, we designed a high-throughput chemical screen platform to quantify PGC-1α acetylation in cells and identified small molecules that increase PGC-1α acetylation, suppress gluconeogenic gene expression, and reduce glucose production in hepatocytes. On the basis of potency and bioavailability, we selected a small molecule, SR-18292, that reduces blood glucose, strongly increases hepatic insulin sensitivity, and improves glucose homeostasis in dietary and genetic mouse models of T2D. These studies have important implications for understanding the regulatory mechanisms of glucose metabolism and treatment of T2D.
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Affiliation(s)
- Kfir Sharabi
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Hua Lin
- Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Clint D J Tavares
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - John E Dominy
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Joao Paulo Camporez
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Rachel J Perry
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Roger Schilling
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Amy K Rines
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Jaemin Lee
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02130, USA
| | - Marc Hickey
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Melissa Bennion
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Michelle Palmer
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Partha P Nag
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | | | - José Perez
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | | | - Umut Ozcan
- Division of Endocrinology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02130, USA
| | - Steve P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Theodore M Kamenecka
- Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Gerald I Shulman
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA; Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT 06510, USA; Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06510, USA
| | | | - Patrick R Griffin
- Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL 33458, USA
| | - Pere Puigserver
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
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Abstract
Insulin resistance is one of the defining features of type 2 diabetes and the metabolic syndrome and accompanies many other clinical conditions, ranging from obesity to lipodystrophy to glucocorticoid excess. Extraordinary efforts have gone into defining the mechanisms that underlie insulin resistance, with most attention focused on altered signalling as well as mitochondrial and endoplasmic reticulum stress. Here, nuclear mechanisms of insulin resistance, including transcriptional and epigenomic effects, will be discussed. Three levels of control involving transcription factors, transcriptional cofactors, and chromatin-modifying enzymes will be considered. Well-studied examples of the first include PPAR-γ in adipose tissue and the glucocorticoid receptor and FoxO1 in a variety of insulin-sensitive tissues. These proteins work in concert with cofactors such as PGC-1α and CRTC2, and chromatin-modifying enzymes including DNA methyltransferases and histone acetyltransferases, to regulate key genes that promote insulin-stimulated glucose uptake, gluconeogenesis or other pathways that affect systemic insulin action. Furthermore, genetic variation associated with increased risk of type 2 diabetes is often related to altered transcription factor binding, either by affecting the transcription factor itself, or more commonly by changing the binding affinity of a noncoding regulatory region. Finally, several avenues for therapeutic exploitation in the battle against metabolic disease will be discussed, including small-molecule inhibitors and activators of these factors and their related pathways.
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Affiliation(s)
- E D Rosen
- Division of Endocrinology and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
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45
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Liu X, Zhao Y, Peng S, Zhang S, Wang M, Chen Y, Zhang S, Yang Y, Sun C. BMP7 retards peripheral myelination by activating p38 MAPK in Schwann cells. Sci Rep 2016; 6:31049. [PMID: 27491681 PMCID: PMC4974506 DOI: 10.1038/srep31049] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 07/13/2016] [Indexed: 11/09/2022] Open
Abstract
Schwann cell (SC) myelination is pivotal for the proper physiological functioning of the nervous system, but the underlying molecular mechanism remains less well understood. Here, we showed that the expression of bone morphogenetic protein 7 (BMP7) inversely correlates with myelin gene expression during peripheral myelination, which suggests that BMP7 is likely a negative regulator for myelin gene expression. Our experiments further showed that the application of BMP7 attenuates the cAMP induced myelin gene expression in SCs. Downstream pathway analysis suggested that both p38 MAPK and SMAD are activated by exogenous BMP7 in SCs. The pharmacological intervention and gene silence studies revealed that p38 MAPK, not SMAD, is responsible for BMP7-mediated suppression of myelin gene expression. In addition, c-Jun, a potential negative regulator for peripheral myelination, was up-regulated by BMP7. In vivo experiments showed that BMP7 treatment greatly impaired peripheral myelination in newborn rats. Together, our results established that BMP7 is a negative regulator for peripheral myelin gene expression and that p38 MAPK/c-Jun axis might be the main downstream target of BMP7 in this process.
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Affiliation(s)
- Xiaoyu Liu
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Yahong Zhao
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Su Peng
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Shuqiang Zhang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Meihong Wang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Yeyue Chen
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China
| | - Shan Zhang
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, China
| | - Yumin Yang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Cheng Sun
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, P.R. China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, P.R. China
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46
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Liu X, Peng S, Zhao Y, Zhao T, Wang M, Luo L, Yang Y, Sun C. AMPK Negatively Regulates Peripheral Myelination via Activation of c-Jun. Mol Neurobiol 2016; 54:3554-3564. [DOI: 10.1007/s12035-016-9913-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 05/03/2016] [Indexed: 12/21/2022]
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47
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Wang M, Luo L, Yao L, Wang C, Jiang K, Liu X, Xu M, Shen N, Guo S, Sun C, Yang Y. Salidroside improves glucose homeostasis in obese mice by repressing inflammation in white adipose tissues and improving leptin sensitivity in hypothalamus. Sci Rep 2016; 6:25399. [PMID: 27145908 PMCID: PMC4857131 DOI: 10.1038/srep25399] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 04/14/2016] [Indexed: 12/21/2022] Open
Abstract
Salidroside is a functionally versatile natural compound from the perennial flowering plant Rhodiola rosea L. Here, we examined obese mice treated with salidroside at the dosage of 50 mg/kg/day for 48 days. Mice treated with salidroside showed slightly decreased food intake, body weight and hepatic triglyceride content. Importantly, salidroside treatment significantly improved glucose and insulin tolerance. It also increased insulin singling in both liver and epididymal white adipose tissue (eWAT). In addition, salidroside markedly ameliorated hyperglycemia in treated mice, which is likely due to the suppression of gluconeogenesis by salidroside as the protein levels of a gluconeogenic enzyme G6Pase and a co-activator PGC-1α were all markedly decreased. Further analysis revealed that adipogenesis in eWAT was significantly decreased in salidroside treated mice. The infiltration of macrophages in eWAT and the productions of pro-inflammatory cytokines were also markedly suppressed by salidroside. Furthermore, the leptin signal transduction in hypothalamus was improved by salidroside. Taken together, these euglycemic effects of salidroside may due to repression of adipogenesis and inflammation in eWAT and stimulation of leptin signal transduction in hypothalamus. Thus, salidroside might be used as an effective anti-diabetic agent.
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Affiliation(s)
- Meihong Wang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Lan Luo
- Department of Geratology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, PRC
| | - Lili Yao
- Department of Endocrinology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, PRC
| | - Caiping Wang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Ketao Jiang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Xiaoyu Liu
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Muchen Xu
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Ningmei Shen
- School of Medicine, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Shaodong Guo
- Division of Molecular Cardiology, Department of Medicine, College of Medicine, Texas A&M University Health Science Center, USA
| | - Cheng Sun
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
| | - Yumin Yang
- Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong, Jiangsu 226001, PRC
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48
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Simon RP, Robaa D, Alhalabi Z, Sippl W, Jung M. KATching-Up on Small Molecule Modulators of Lysine Acetyltransferases. J Med Chem 2016; 59:1249-70. [PMID: 26701186 DOI: 10.1021/acs.jmedchem.5b01502] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The reversible acetylation of lysines is one of the best characterized epigenetic modifications. Its involvement in many key physiological and pathological processes has been documented in numerous studies. Lysine deacetylases (KDACs) and acetyltransferases (KATs) maintain the acetylation equilibrium at histones but also many other proteins. Besides acetylation, also other acyl groups are reversibly installed at the side chain of lysines in proteins. Because of their involvement in disease, KDACs and KATs were proposed to be promising drug targets, and for KDACs, indeed, five inhibitors are now approved for human use. While there is a similar level of evidence for the potential of KATs as drug targets, no inhibitor is in clinical trials. Here, we review the evidence for the diverse roles of KATs in disease pathology, provide an overview of structural features and the available modulators, including those targeting the bromodomains of KATs, and present an outlook.
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Affiliation(s)
- Roman P Simon
- Institute of Pharmaceutical Sciences, University of Freiburg , Albertstraße 25, Freiburg 79104, Germany
| | - Dina Robaa
- Department of Pharmaceutical Chemistry, University Halle-Wittenberg , Halle/Saale 06120, Germany
| | - Zayan Alhalabi
- Department of Pharmaceutical Chemistry, University Halle-Wittenberg , Halle/Saale 06120, Germany
| | - Wolfgang Sippl
- Department of Pharmaceutical Chemistry, University Halle-Wittenberg , Halle/Saale 06120, Germany
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg , Albertstraße 25, Freiburg 79104, Germany
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49
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Abstract
Reversible acetylation was initially described as an epigenetic mechanism regulating DNA accessibility. Since then, this process has emerged as a controller of histone and nonhistone acetylation that integrates key physiological processes such as metabolism, circadian rhythm and cell cycle, along with gene regulation in various organisms. The widespread and reversible nature of acetylation also revitalized interest in the mechanisms that regulate lysine acetyltransferases (KATs) and deacetylases (KDACs) in health and disease. Changes in protein or histone acetylation are especially relevant for many common diseases including obesity, diabetes mellitus, neurodegenerative diseases and cancer, as well as for some rare diseases such as mitochondrial diseases and lipodystrophies. In this Review, we examine the role of reversible acetylation in metabolic control and how changes in levels of metabolites or cofactors, including nicotinamide adenine dinucleotide, nicotinamide, coenzyme A, acetyl coenzyme A, zinc and butyrate and/or β-hydroxybutyrate, directly alter KAT or KDAC activity to link energy status to adaptive cellular and organismal homeostasis.
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Affiliation(s)
- Keir J Menzies
- Interdisciplinary School of Health Sciences, University of Ottawa, 501 Smyth Road, Ottawa, ON K1H 8L6, Canada
| | - Hongbo Zhang
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, Station 15, 1015 Lausanne, Switzerland
| | - Elena Katsyuba
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, Station 15, 1015 Lausanne, Switzerland
| | - Johan Auwerx
- Laboratory of Integrative and Systems Physiology, École Polytechnique Fédérale de Lausanne, Station 15, 1015 Lausanne, Switzerland
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50
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Cystatin C attenuates insulin signaling transduction by promoting endoplasmic reticulum stress in hepatocytes. FEBS Lett 2015; 589:3938-44. [DOI: 10.1016/j.febslet.2015.11.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 11/11/2015] [Indexed: 12/16/2022]
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