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Zhu Y, Chai Y, Su Z, Qi W, Yin M, Li L, Wei M, Ge J, Wang H, Jiao Z, Bei Y. Danlou Tablet Protects Against Myocardial Infarction Through Promoting eNOS-Dependent Endothelial Protection and Angiogenesis. J Cardiovasc Transl Res 2024; 17:403-416. [PMID: 37784003 DOI: 10.1007/s12265-023-10437-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 09/04/2023] [Indexed: 10/04/2023]
Abstract
Myocardial infarction (MI) is one of the leading causes of death worldwide. Danlou tablet (Dan) is an effective traditional Chinese medicine for cardiac protection, although the underlying mechanism was not fully understood. In this study, we used a murine MI model and demonstrated that Dan administration effectively attenuated myocardial apoptosis, cardiac remodeling, and heart failure post MI. Dan increased CD31-positive capillaries in MI hearts, and reduced the apoptosis and oxidative stress in human umbilical vein endothelial cells after oxygen-glucose deprivation stress, simultaneously with the activated HIF-1α/VEGFA/eNOS signaling. Moreover, inhibition of eNOS by L-NAME attenuated Dan-induced protection against MI, and abolished its effect in promoting angiogenesis and reducing endothelial apoptosis and oxidative stress. Collectively, Dan is beneficial to promote eNOS-dependent endothelial protection and angiogenesis thus protecting against MI. A deep understanding of Dan-induced protection might help promote clinical usage of Dan in MI treatment.
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Affiliation(s)
- Yujiao Zhu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
| | - Yibo Chai
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Zhuhua Su
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Weitong Qi
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Mingming Yin
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Lin Li
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Meng Wei
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Jun Ge
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Hongyun Wang
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China.
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China.
| | - Zheng Jiao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Yihua Bei
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China.
- Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China.
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5
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Qu W, Zhou X, Jiang X, Xie X, Xu K, Gu X, Na R, Piao M, Xi X, Sun N, Wang X, Peng X, Xu J, Tian J, Zhang J, Guo J, Zhang M, Zhang Y, Pan Z, Wang K, Yu B, Sun B, Li S, Tian J. Long Noncoding RNA Gpr137b-ps Promotes Advanced Atherosclerosis via the Regulation of Autophagy in Macrophages. Arterioscler Thromb Vasc Biol 2023; 43:e468-e489. [PMID: 37767704 DOI: 10.1161/atvbaha.123.319037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Current therapies cannot completely reverse advanced atherosclerosis. High levels of amino acids, induced by Western diet, stimulate mTORC1 (mammalian target of rapamycin complex 1)-autophagy defects in macrophages, accelerating atherosclerotic plaque progression. In addition, autophagy-lysosomal dysfunction contributes to plaque necrotic core enlargement and lipid accumulation. Therefore, it is essential to investigate the novel mechanism and molecules to reverse amino acid-mTORC1-autophagy signaling dysfunction in macrophages of patients with advanced atherosclerosis. METHODS We observed that Gpr137b-ps (G-protein-coupled receptor 137B, pseudogene) was upregulated in advanced atherosclerotic plaques. The effect of Gpr137b-ps on the progression of atherosclerosis was studied by generating advanced plaques in ApoE-/- mice with cardiac-specific knockout of Gpr137b-ps. Bone marrow-derived macrophages and mouse mononuclear macrophage cell line RAW264.7 cells were subjected to starvation or amino acid stimulation to study amino acid-mTORC1-autophagy signaling. Using both gain- and loss-of-function approaches, we explored the mechanism of Gpr137b-ps-regulated autophagy. RESULTS Our results demonstrated that Gpr137b-ps deficiency led to enhanced autophagy in macrophages and reduced atherosclerotic lesions, characterized by fewer necrotic cores and less lipid accumulation. Knockdown of Gpr137b-ps increased autophagy and prevented amino acid-induced mTORC1 signaling activation. As the downstream binding protein of Gpr137b-ps, HSC70 (heat shock cognate 70) rescued the impaired autophagy induced by Gpr137b-ps. Furthermore, Gpr137b-ps interfered with the HSC70 binding to G3BP (Ras GTPase-activating protein-binding protein), which tethers the TSC (tuberous sclerosis complex) complex to lysosomes and suppresses mTORC1 signaling. In addition to verifying that the NTF2 (nuclear transport factor 2) domain of G3BP binds to HSC70 by in vitro protein synthesis, we further demonstrated that HSC70 binds to the NTF2 domain of G3BP through its W90-F92 motif by using computational modeling. CONCLUSIONS These findings reveal that Gpr137b-ps plays an essential role in the regulation of macrophage autophagy, which is crucial for the progression of advanced atherosclerosis. Gpr137b-ps impairs the interaction of HSC70 with G3BP to regulate amino acid-mTORC1-autophagy signaling, and these results provide a new potential therapeutic direction for the treatment of advanced atherosclerosis.
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Affiliation(s)
- Wenbo Qu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xin Zhou
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xinjian Jiang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xianwei Xie
- Department of Cardiology, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, China (X. Xie)
| | - Kaijian Xu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xia Gu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Ruisi Na
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Heilongjiang, China (R.N.)
| | - Minghui Piao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xiangwen Xi
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Na Sun
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xueyu Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Xiang Peng
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Junyan Xu
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China (J.X.)
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Key Laboratory of Emergency and Trauma, Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, China (J.X., J.G.)
| | - Jiangtian Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Jian Zhang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology (J.Z.)
| | - Junli Guo
- Key Laboratory of Tropical Cardiovascular Diseases Research of Hainan Province, Cardiovascular Diseases Institute of the First Affiliated Hospital, Key Laboratory of Emergency and Trauma, Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, China (J.X., J.G.)
| | - Maomao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Yao Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Zhenwei Pan
- College of Pharmacy (Z.P., B.S.), Harbin Medical University, China
| | - Kun Wang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, China (K.W.)
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
| | - Bin Sun
- College of Pharmacy (Z.P., B.S.), Harbin Medical University, China
| | - Shuijie Li
- Department of Biopharmaceutical Sciences, College of Pharmacy (S.L.), Harbin Medical University, China
- State Key Laboratory of Frigid Zone Cardiovascular Diseases Harbin Medical University, China (S.L.)
- Department of Biopharmaceutical Sciences, College of Pharmacy Harbin Medical University, China (S.L.)
| | - Jinwei Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, China (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian)
- The Key Laboratory of Myocardial Ischemia, Ministry of Education (W.Q., X.Z., X.J., K.X., X.G., M.P., X. Xi, N.S., X.W., X.P., Jiangtian Tian, M.Z., Y.Z., B.Y., Jinwei Tian), Harbin Medical University, China
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8
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Liu C, Chen H, Liu Y, Huang H, Yu W, Du T, Long X, Chen X, Chen Z, Guo S, Li J, Jiang Z, Wang L, Lu C. Immunity: Psoriasis comorbid with atherosclerosis. Front Immunol 2022; 13:1070750. [PMID: 36591241 PMCID: PMC9798109 DOI: 10.3389/fimmu.2022.1070750] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
Psoriasis is an immune-mediated, persistent inflammatory disease with a genetic predisposition, and the involvement of multiple organs in psoriasis remains indicative of systemic disease. Atherosclerosis (AS) is a common complication of patients with severe or prolonged psoriasis. The specific pathogenesis of psoriasis is still unclear. Current studies suggest that psoriasis is a polygenic genetic disease with the interaction of multiple factors such as heredity and environment. Keratinocytes are proliferated through immune-mediated inflammatory pathway, which leads to cell activation, infiltration of dermis cells and release of inflammatory factors. Activation of inflammatory cells and pro-inflammatory factors play an important role in the progression of psoriasis and atherosclerosis. Studies have found that there is a close relationship between psoriasis and atherosclerosis, and systemic inflammation may be the common feature of psoriasis and AS. This paper attempts to explore the possibility of the relationship between psoriasis and atherosclerotic comorbidities from the aspects of potential epidemiology and immune mechanism, in order to provide some reference for the subsequent scientific research.
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Affiliation(s)
- Chunping Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong-Hong Kong- Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China,State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, Macau SAR, China
| | - Huiqi Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Yanjiao Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Haiding Huang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Wanling Yu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Tingting Du
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Xinyao Long
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Xinming Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Zhijun Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Sien Guo
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Jinxin Li
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Zebo Jiang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, China,*Correspondence: Zebo Jiang, ; Lei Wang, ; Chuanjian Lu,
| | - Lei Wang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China,*Correspondence: Zebo Jiang, ; Lei Wang, ; Chuanjian Lu,
| | - Chuanjian Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong-Hong Kong- Macau Joint Lab on Chinese Medicine and Immune Disease Research, The Second Affilliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Guangdong Academy of Chinese Medicine Sciences, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China,*Correspondence: Zebo Jiang, ; Lei Wang, ; Chuanjian Lu,
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9
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Qin X, He W, Yang R, Liu L, Zhang Y, Li L, Si J, Li X, Ma K. Inhibition of Connexin 43 reverses ox-LDL-mediated inhibition of autophagy in VSMC by inhibiting the PI3K/Akt/mTOR signaling pathway. PeerJ 2022; 10:e12969. [PMID: 35313522 PMCID: PMC8934045 DOI: 10.7717/peerj.12969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 01/30/2022] [Indexed: 01/11/2023] Open
Abstract
Background Oxidized low-density lipoproteins (ox-LDL) may induce foam cell formation from the vascular smooth muscle cell (VSMC) by inhibiting VSMC autophagy. This process accelerates the formation of atherosclerosis (AS). Connexin 43 (Cx43), which is the most widely distributed connexin in VSMC is associated with autophagy. However, the mechanism of action and the involvement of Cx43 in ox-LDL-inhibited VSMC autophagy remain unclear. Methods The primary VSMC were obtained and identified, before primary VSMC were pretreated with an inhibitor (Cx43-specific inhibitor Gap26 and PI3K inhibitor LY294002) and stimulated with ox-LDL. Results Ox-LDL not only inhibited autophagy in VSMC via downregulation of autophagy-related proteins (such as Beclin 1, LC3B, p62), but also increased Cx43 protein levels. Then we added Gap26 to VSMC in the ox-LDL+Gap26 group, in which autophagy-related proteins were increased and the accumulation of lipid droplets was reduced. These result suggested that an enhanced level of autophagy and an alleviation of lipid accumulation might be caused by inhibiting Cx43 in VSMC. The phosphorylation levels of PI3K, AKT, mTOR were increased by ox-LDL, thus down-regulating autophagy-related proteins. However, this situation was partially reversed by the Gap26. Moreover, Cx43 expression were decreased by LY294002 in ox-LDL-induced VSMCs. Conclusion Inhibiting Cx43 may activate VSMC autophagy to inhibit foam cell formation by inhibiting the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Xuqing Qin
- Shihezi University School of Medicine, Department of Physiology, Shihezi, Xinjiang, China
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
| | - Wenjun He
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
- Shihezi University School of Medicine, Department of Pathophysiology, Shihezi, Xinjiang, China
| | - Rui Yang
- Shihezi University School of Medicine, Department of Physiology, Shihezi, Xinjiang, China
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
| | - Luqian Liu
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
- Shihezi University School of Medicine, Department of Pathophysiology, Shihezi, Xinjiang, China
| | - Yingying Zhang
- Shihezi University School of Medicine, Department of Physiology, Shihezi, Xinjiang, China
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
| | - Li Li
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
| | - Junqiang Si
- Shihezi University School of Medicine, Department of Physiology, Shihezi, Xinjiang, China
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
| | - Xinzhi Li
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
- Shihezi University School of Medicine, Department of Pathophysiology, Shihezi, Xinjiang, China
| | - Ketao Ma
- Shihezi University School of Medicine, Department of Physiology, Shihezi, Xinjiang, China
- Ministry of Education, Shihezi University School of Medicine, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi, Xinjiang, China
- First Affiliated Hospital, Shihezi University School of Medicine, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi, Xinjiang, China
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