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Ri-Wen, Yang YH, Zhang TN, Liu CF, Yang N. Targeting epigenetic and post-translational modifications regulating pyroptosis for the treatment of inflammatory diseases. Pharmacol Res 2024; 203:107182. [PMID: 38614373 DOI: 10.1016/j.phrs.2024.107182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Inflammatory diseases, including infectious diseases, diabetes-related diseases, arthritis-related diseases, neurological diseases, digestive diseases, and tumor, continue to threaten human health and impose a significant financial burden despite advancements in clinical treatment. Pyroptosis, a pro-inflammatory programmed cell death pathway, plays an important role in the regulation of inflammation. Moderate pyroptosis contributes to the activation of native immunity, whereas excessive pyroptosis is associated with the occurrence and progression of inflammation. Pyroptosis is complicated and tightly controlled by various factors. Accumulating evidence has confirmed that epigenetic modifications and post-translational modifications (PTMs) play vital roles in the regulation of pyroptosis. Epigenetic modifications, which include DNA methylation and histone modifications (such as methylation and acetylation), and post-translational modifications (such as ubiquitination, phosphorylation, and acetylation) precisely manipulate gene expression and protein functions at the transcriptional and post-translational levels, respectively. In this review, we summarize the major pathways of pyroptosis and focus on the regulatory roles and mechanisms of epigenetic and post-translational modifications of pyroptotic components. We also illustrate these within pyroptosis-associated inflammatory diseases. In addition, we discuss the effects of novel therapeutic strategies targeting epigenetic and post-translational modifications on pyroptosis, and provide prospective insight into the regulation of pyroptosis for the treatment of inflammatory diseases.
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Affiliation(s)
- Ri-Wen
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yu-Hang Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Tie-Ning Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Chun-Feng Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Ni Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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2
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Wang G, Ma TY, Huang K, Zhong JH, Lu SJ, Li JJ. Role of pyroptosis in diabetic cardiomyopathy: an updated review. Front Endocrinol (Lausanne) 2024; 14:1322907. [PMID: 38250736 PMCID: PMC10796545 DOI: 10.3389/fendo.2023.1322907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/06/2023] [Indexed: 01/23/2024] Open
Abstract
Diabetic cardiomyopathy (DCM), one of the common complications of diabetes, presents as a specific cardiomyopathy with anomalies in the structure and function of the heart. With the increasing prevalence of diabetes, DCM has a high morbidity and mortality worldwide. Recent studies have found that pyroptosis, as a programmed cell death accompanied by an inflammatory response, exacerbates the growth and genesis of DCM. These studies provide a theoretical basis for exploring the potential treatment of DCM. Therefore, this review aims to summarise the possible mechanisms by which pyroptosis promotes the development of DCM as well as the relevant studies targeting pyroptosis for the possible treatment of DCM, focusing on the molecular mechanisms of NLRP3 inflammasome-mediated pyroptosis, different cellular pyroptosis pathways associated with DCM, the effects of pyroptosis occurring in different cells on DCM, and the relevant drugs targeting NLRP3 inflammasome/pyroptosis for the treatment of DCM. This review might provide a fresh perspective and foundation for the development of therapeutic agents for DCM.
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Affiliation(s)
- Gan Wang
- Department of Cardiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China
| | - Tian-Yi Ma
- Department of Cardiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China
| | - Kang Huang
- Department of Cardiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China
| | - Jiang-Hua Zhong
- Department of Cardiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China
| | - Shi-Juan Lu
- Department of Cardiology, Haikou Affiliated Hospital of Central South University Xiangya School of Medicine, Haikou, Hainan, China
| | - Jian-Jun Li
- State Key Laboratory of Cardiovascular Diseases, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Chen X, Zhang T, Ren X, Wei Y, Zhang X, Zang X, Ju X, Qin C, Xu D. CHKB-AS1 enhances proliferation and resistance to NVP-BEZ235 of renal cancer cells via regulating the phosphorylation of MAP4 and PI3K/AKT/mTOR signaling. Eur J Med Res 2023; 28:588. [PMID: 38093375 PMCID: PMC10720114 DOI: 10.1186/s40001-023-01558-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023] Open
Abstract
Targeted therapy is pivotal in renal carcinoma treatment, and the dual-inhibitor NVP-BEZ235 has emerged as a promising candidate in preliminary studies. Its effectiveness against renal carcinoma and the mechanisms underlying potential resistance, however, warrant further exploration. This study aims to elucidate these aspects, enhancing our understanding of NVP-BEZ235's future clinical utility. To investigate resistance mechanisms, renal cancer cell lines were exposed to progressively increasing concentrations of NVP-BEZ235, leading to the development of stable resistance. These resistant cells underwent extensive RNA-sequencing analysis. We implemented gene interference techniques using plasmid vectors and lentivirus and conducted regular IC50 assessments. To pinpoint the role of LncRNAs, we utilized FISH and immunofluorescence staining assays, supplemented by RNA pull-down and RIP assays to delineate interactions between LncRNA and its RNA-binding protein (RBP). Further, Western blotting and qRT-PCR were employed to examine alterations in signaling pathways, with an animal model providing additional validation. Our results show a marked increase in the IC50 of NVP-BEZ235 in resistant cell lines compared to their parental counterparts. A significant revelation was the role of LncRNA-CHKB-AS1 in mediating drug resistance. We observed dysregulated expression of CHKB-AS1 in both clinical samples of clear cell renal cell carcinoma (ccRCC) and cell lines. In vivo experiments further substantiated our findings, showing that CHKB-AS1 overexpression significantly enhanced tumor growth and resistance to NVP-BEZ235 in a subcutaneous tumorigenesis model, as evidenced by increased tumor volume and weight, whereas CHKB-AS1 knockdown led to a marked reduction in these parameters. Critically, CHKB-AS1 was identified to interact with MAP4, a key regulator in the phosphorylation of the PI3k/Akt/mTOR pathway. This interaction contributes to a diminished antitumor effect of NVP-BEZ235, highlighting the intricate mechanism through which CHKB-AS1 modulates drug resistance pathways, potentially impacting therapeutic strategies against renal carcinoma.
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Affiliation(s)
- Xinglin Chen
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Pudong New District, Shanghai, 201203, China
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China
| | - Tongtong Zhang
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Pudong New District, Shanghai, 201203, China
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China
| | - Xiaohan Ren
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China
| | - Yuang Wei
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China
| | - Xu Zhang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China
| | - Xinyue Zang
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Pudong New District, Shanghai, 201203, China
| | - Xiran Ju
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Pudong New District, Shanghai, 201203, China.
| | - Chao Qin
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, 210029, Jiangsu Province, China.
| | - Dongliang Xu
- Urology Centre, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 528 Zhangheng Road, Pudong New District, Shanghai, 201203, China.
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SHI X, WANG L, HU J, ZHANG L, WANG J. Effect of Naoluoxintong formula and its split prescriptions on cerebral vascular regeneration in rats with the cerebral ischemia-reperfusion. J TRADIT CHIN MED 2023; 43:1140-1149. [PMID: 37946476 PMCID: PMC10623265 DOI: 10.19852/j.cnki.jtcm.20221230.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 09/27/2022] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To observe regulatory effect of Naoluoxintong formula (, NLXT) and its split prescriptions on vascular regeneration of rats suffering from cerebral ischemia-reperfusion (IR) syndrome of Qi deficiency with blood stasis (QDBS). METHODS NLXT is the representative prescription of Yiqi Huoxue Tongluo decoction, and NLXT is divided into Yiqi herbs and Huoxue Tongluo herbs according to their efficacies. One hundred and eight specific-pathogen-free, clean-grade, Sprague-Dawley male rats were selected to prepare the classical rat model with QDBS due to middle artery ischemia-reperfusion using the multi-factor compound simulation approach. The animals were classified into sham operation (S), model (M), Nimodping (NMDP), NLXT, YQ and HXTL groups, each having 18 rats. Cerebral ischemia was reperfused after 2 h, and 24 h later, they were administered traditional Chinese medicine treatment for 14 d twice a day. Angiogenesis changes after NLXT administration to middle cerebral artery occlusion-reperfusion (MCAO/R) rats with QDBS were analyzed using the neurological deficit score and hematoxylin-eosin staining. Cerebral infarct area by 2,3,5-Triphenyltetrazolium chloride was detected, and the ultrastructure of the blood vessel in the ischemic frontoparietal cortex was observed by transmission electron microscopy. Angiopoietin 1 (Ang1), angiopoietin 2 (Ang2), vascular endothelial growth factor A (VEGFA), vascular endothelial growth factor receptor 2 (VEGFR2), platelet endothelial cell adhesion molecule-1 (CD31), angiopoietin receptor 2 (Tie2), and P38 mitogen-activated protein kinase (MAPK) protein levels in the frontal and parietal cortex were quantified by immunofluorescence, reverse transcription-polymerase chain reaction, and Western blotting assays. RESULTS Relative to the S group, VEGFA and VEGFR2 levels in the frontal and parietal cortex of group M were increased, and Ang1, Ang2, Tie2, CD31, and p38 MAPK levels remarkably increased (P < 0.05); cerebral infarct area was significant and pathological morphology and ultrastructure damage was obvious. Relative to the group M, VEGFA, VEGFR2, CD31, Ang1, Ang2, and Tie2 expression of group NLXT and NMDP remarkably elevated (P < 0.05) and infarct focus, pathological morphology and ultrastructure were significantly improved; VEGFA and VEGFR2 levels in the groups YQ and HXTL increased, and Ang1, Ang2, CD31, and Tie2 levels remarkably increased (P < 0.05); p38 MAPK levels in the three treatment groups decreased (P < 0.05). Relative to the group NLXT, the expression levels of p38 MAPK in group YQ and group HXTL were significantly increased, and the expression levels of other indicators were significantly decreased (P < 0.05). CONCLUSION NLXT can promote the angiogenesis of the rat model of MCAO/R with QDBS by activating VEGFA and inhibiting P38 MAPK, and the effect is better than that of split prescription groups.
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Affiliation(s)
- Xiao SHI
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Lina WANG
- 2 Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jianpeng HU
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Limiao ZHANG
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jin WANG
- 1 Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
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Luo A, Jia Y, Hao R, Yu Y, Zhou X, Gu C, Ren M, Tang H. Quantitative Proteomic and Phosphoproteomic Profiling of Lung Tissues from Pulmonary Arterial Hypertension Rat Model. Int J Mol Sci 2023; 24:ijms24119629. [PMID: 37298580 DOI: 10.3390/ijms24119629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a rare but fatal disease characterized by elevated pulmonary vascular resistance and increased pressure in the distal pulmonary arteries. Systematic analysis of the proteins and pathways involved in the progression of PAH is crucial for understanding the underlying molecular mechanism. In this study, we performed tandem mass tags (TMT)-based relative quantitative proteomic profiling of lung tissues from rats treated with monocrotaline (MCT) for 1, 2, 3 and 4 weeks. A total of 6759 proteins were quantified, among which 2660 proteins exhibited significant changes (p-value < 0.05, fold change < 0.83 or >1.2). Notably, these changes included several known PAH-related proteins, such as Retnla (resistin-like alpha) and arginase-1. Furthermore, the expression of potential PAH-related proteins, including Aurora kinase B and Cyclin-A2, was verified via Western blot analysis. In addition, we performed quantitative phosphoproteomic analysis on the lungs from MCT-induced PAH rats and identified 1412 upregulated phosphopeptides and 390 downregulated phosphopeptides. Pathway enrichment analysis revealed significant involvement of pathways such as complement and coagulation cascades and the signaling pathway of vascular smooth muscle contraction. Overall, this comprehensive analysis of proteins and phosphoproteins involved in the development and progression of PAH in lung tissues provides valuable insights for the development of potential diagnostic and treatment targets for PAH.
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Affiliation(s)
- Ang Luo
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Yangfan Jia
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Rongrong Hao
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Yafang Yu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Xia Zhou
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Chenxin Gu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Meijuan Ren
- Life Science Research Core Service, Northwest A&F University, Xianyang 712100, China
| | - Haiyang Tang
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
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6
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Feng Y, Zhang Q, He Y, Huang Y, Zhang J, Zhang D, Huang Y, Hu J, Lei X, Li L. Mitophagy associated self-degradation of phosphorylated MAP4 guarantees the migration and proliferation responses of keratinocytes to hypoxia. Cell Death Discov 2023; 9:168. [PMID: 37198170 DOI: 10.1038/s41420-023-01465-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 05/19/2023] Open
Abstract
Our previous study has announced that phosphorylated microtubule-associated protein 4 (p-MAP4) accelerated keratinocytes migration and proliferation under hypoxia through depolymerizing microtubules. However, p-MAP4 should exhibit inhibitory effects on wound healing, for it also impaired mitochondria. Thus, figuring out the outcome of p-MAP4 after it impaired mitochondria and how the outcome influenced wound healing were far-reaching significance. Herein, the results revealed that p-MAP4 might undergo self-degradation through autophagy in hypoxic keratinocytes. Next, p-MAP4 activated mitophagy which was unobstructed and was also the principal pathway of its self-degradation triggered by hypoxia. Moreover, both Bcl-2 homology 3 (BH3) and LC3 interacting region (LIR) domains had been verified in MAP4, and they endowed MAP4 with the capability to synchronously function as a mitophagy initiator and a mitophagy substrate receptor. And, mutating any one of them ruined hypoxia-induced self-degradation of p-MAP4, resulting in destroyed proliferation and migration responses of keratinocytes to hypoxia. Our findings unviewed that p-MAP4 experienced mitophagy-associated self-degradation through utilizing its BH3 and LIR domains under hypoxia. As a result, the mitophagy-associated self-degradation of p-MAP4 guaranteed the migration and proliferation responses of keratinocytes to hypoxia. Together, this research provided a bran-new pattern of proteins in regulating wound healing, and offered a new direction for intervening wound healing.
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Affiliation(s)
- Yanhai Feng
- Army 953 Hospital, Shigatse Branch of Xinqiao Hospital, Third Military Medical University (Army Medical University), Shigatse, China
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qiong Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yongqing He
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yao Huang
- Army 953 Hospital, Shigatse Branch of Xinqiao Hospital, Third Military Medical University (Army Medical University), Shigatse, China
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Junhui Zhang
- Department of Geriatric Oncology, Department of Palliative care, Department of Clinical nutrition, Chongqing University Cancer Hospital, Chongqing, China
| | - Dongxia Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yuesheng Huang
- Department of Wound Repair, Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, China
| | - Jiongyu Hu
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Endocrinology Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xia Lei
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lingfei Li
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
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Hou J, Yuan Y, Chen P, Lu K, Tang Z, Liu Q, Xu W, Zheng D, Xiong S, Pei H. Pathological Roles of Oxidative Stress in Cardiac Microvascular Injury. Curr Probl Cardiol 2022; 48:101399. [PMID: 36103941 DOI: 10.1016/j.cpcardiol.2022.101399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 01/06/2023]
Abstract
Cardiac microvascular injury can be a fundamental pathological process that causes high incidence cardiovascular diseases such heart failure, diabetic cardiomyopathy, and hypertension. It is also an independent risk factor for cardiovascular disease. Oxidative stress is a significant pathological process in which the body interferes with the balance of the endogenous antioxidant defense system by producing reactive oxygen species, leading to property changes and dysfunction. It has been demonstrated that oxidative stress is one of the major causes of cardiac microvascular disease. Therefore, additional investigation into the relationship between oxidative stress and cardiac microvascular injury will direct clinical management in the future. In order to give suggestions and support for future in-depth studies, we give a basic overview of the cardiac microvasculature in relation to physiopathology in this review. We also summarize the role of oxidative stress of mitochondrial and non-mitochondrial origin in cardiac microvascular injury and related drug studies.
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Affiliation(s)
- Jun Hou
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Yuan Yuan
- Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Peiwen Chen
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Keji Lu
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Zhaobing Tang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Qing Liu
- Department of medical engineering, The 950th Hospital of PLA, Yecheng 844900, China
| | - Wu Xu
- Department of Urology, The Fifth Afliated Hospital of Southern Medical University, Guangzhou 510900, China
| | - Dezhi Zheng
- Department of Cardiovascular Surgery, the 960th Hospital of the PLA Joint Logistic Support Force, Jinan 250031, China
| | - Shiqiang Xiong
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Haifeng Pei
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China.
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8
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The Role of NLRP3 Inflammasome in Diabetic Cardiomyopathy and Its Therapeutic Implications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3790721. [PMID: 36111168 PMCID: PMC9470324 DOI: 10.1155/2022/3790721] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022]
Abstract
Diabetic cardiomyopathy (DCM) is a serious complication of diabetes mellitus (DM). However, the precise molecular mechanisms remain largely unclear, and it is still a challenging disease to diagnose and treat. The nucleotide-binding oligomerization domain and leucine-rich repeat pyrin 3 domain (NLRP3) inflammasome is a critical part of the innate immune system in the host to defend against endogenous danger and pathogenic microbial infections. Dysregulated NLRP3 inflammasome activation results in the overproduction of cytokines, primarily IL-1β and IL-18, and eventually, inflammatory cell death-pyroptosis. A series of studies have indicated that NLRP3 inflammasome activation participates in the development of DCM, and that corresponding interventions could mitigate disease progression. Accordingly, this narrative review is aimed at briefly summarizing the cell-specific role of the NLRP3 inflammasome in DCM and provides novel insights into developing DCM therapeutic strategies targeting the NLRP3 inflammasome.
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9
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Li L, Feng Y, Zhang J, Zhang Q, Ren J, Sun C, Li S, Lei X, Luo G, Hu J, Huang Y. Microtubule associated protein 4 phosphorylation-induced epithelial-to-mesenchymal transition of podocyte leads to proteinuria in diabetic nephropathy. Cell Commun Signal 2022; 20:115. [PMID: 35902952 PMCID: PMC9331595 DOI: 10.1186/s12964-022-00883-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 04/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) involves various structural and functional changes because of chronic glycemic assault and kidney failure. Proteinuria is an early clinical manifestation of DN, but the associated pathogenesis remains elusive. This study aimed to investigate the role of microtubule associated protein 4 (MAP4) phosphorylation (p-MAP4) in proteinuria in DN and its possible mechanisms. METHODS In this study, the urine samples of diabetic patients and kidney tissues of streptozotocin (STZ)-induced diabetic mice were obtained to detect changes of p-MAP4. A murine model of hyperphosphorylated MAP4 was established to examine the effect of MAP4 phosphorylation in DN. Podocyte was applied to explore changes of kidney phenotypes and potential mechanisms with multiple methods. RESULTS Our results demonstrated elevated content of p-MAP4 in diabetic patients' urine samples, and increased kidney p-MAP4 in streptozocin (STZ)-induced diabetic mice. Moreover, p-MAP4 triggered proteinuria with aging in mice, and induced epithelial-to-mesenchymal transition (EMT) and apoptosis in podocytes. Additionally, p-MAP4 mice were much more susceptible to STZ treatment and showed robust DN pathology as compared to wild-type mice. In vitro study revealed high glucose (HG) triggered elevation of p-MAP4, rearrangement of microtubules and F-actin filaments with enhanced cell permeability, accompanied with dedifferentiation and apoptosis of podocytes. These effects were significantly reinforced by MAP4 hyperphosphorylation, and were rectified by MAP4 dephosphorylation. Notably, pretreatment of p38/MAPK inhibitor SB203580 reinstated all HG-induced pathological alterations. CONCLUSIONS The findings indicated a novel role for p-MAP4 in causing proteinuria in DN. Our results indicated the therapeutic potential of MAP4 in protecting against proteinuria and related diseases. Video Abstract.
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Affiliation(s)
- Lingfei Li
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yanhai Feng
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Junhui Zhang
- Endocrinology Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Qiong Zhang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Cheng Sun
- Department of Ophthalmology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Shujing Li
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xia Lei
- Department of Dermatology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Gaoxing Luo
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China. .,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| | - Jiongyu Hu
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China. .,Endocrinology Department, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| | - Yuesheng Huang
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China. .,State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China. .,Department of Wound Repair, Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, China.
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10
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Abstract
Heart disease remains the leading cause of morbidity and mortality worldwide. With the advancement of modern technology, the role(s) of microtubules in the pathogenesis of heart disease has become increasingly apparent, though currently there are limited treatments targeting microtubule-relevant mechanisms. Here, we review the functions of microtubules in the cardiovascular system and their specific adaptive and pathological phenotypes in cardiac disorders. We further explore the use of microtubule-targeting drugs and highlight promising druggable therapeutic targets for the future treatment of heart diseases.
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Affiliation(s)
- Emily F Warner
- Department of Medicine, University of Cambridge, Addenbrookes Hospital, United Kingdom (E.F.W., X.L.)
| | - Yang Li
- Department of Cardiovascular Surgery, Zhongnan Hospital, Wuhan University School of Medicine, People's Republic of China (Y.L.)
| | - Xuan Li
- Department of Medicine, University of Cambridge, Addenbrookes Hospital, United Kingdom (E.F.W., X.L.)
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