1
|
Xia H, Duan J, Li M, Chen N, Zhong W, Zhou Y, Chen R, Yuan W. CD137 Signaling Mediates Pulmonary Artery Endothelial Cell Proliferation Under Hypoxia By Regulating Mitochondrial Dynamics. J Cardiovasc Transl Res 2024; 17:859-869. [PMID: 38347336 DOI: 10.1007/s12265-024-10493-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: 10/17/2023] [Accepted: 01/31/2024] [Indexed: 09/04/2024]
Abstract
Altered mitochondrial dynamics affect pulmonary artery endothelial cells (PAECs) proliferation, contributing to the development of pulmonary hypertension. CD137 signaling promotes mitochondrial fission. We hypothesize CD137 signaling is involved in the excessive proliferation of PAECs. The levels of CD137 protein were increased in the lung tissue of hypoxic mice and hypoxic-stimulated PAECs. Activation of CD137 signal in hypoxic-PAECs upregulated the levels of hypoxia-inducible factor-2α (HIF-2α), glucose transporters type 4, the lactate transporter monocarboxylate transporter 4, key glycolysis rate-limiting enzymes and promoted mitochondrial division; moreover, increased glucose uptake, lactic acid and ATP production and proliferative cells were observed in these PAECs. Whereas, knockdown HIF-2α reversed CD137 signal-mediated effects in PAECs mentioned above. Compared with wild-type mice, the proliferation of PAECs and the percentage of vascular lateral wall thickness decreased in CD137 knockout mice. Together, CD137 signal participated in pulmonary vascular remodeling through the regulation of mitochondrial dynamics dependent on HIF-2α in PAECs.
Collapse
Affiliation(s)
- Hao Xia
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Junying Duan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Mei Li
- Department of Pathology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Nan Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wei Zhong
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ye Zhou
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Rui Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Wei Yuan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| |
Collapse
|
2
|
Liu BH, Xu CZ, Liu Y, Lu ZL, Fu TL, Li GR, Deng Y, Luo GQ, Ding S, Li N, Geng Q. Mitochondrial quality control in human health and disease. Mil Med Res 2024; 11:32. [PMID: 38812059 PMCID: PMC11134732 DOI: 10.1186/s40779-024-00536-5] [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: 11/10/2023] [Accepted: 05/07/2024] [Indexed: 05/31/2024] Open
Abstract
Mitochondria, the most crucial energy-generating organelles in eukaryotic cells, play a pivotal role in regulating energy metabolism. However, their significance extends beyond this, as they are also indispensable in vital life processes such as cell proliferation, differentiation, immune responses, and redox balance. In response to various physiological signals or external stimuli, a sophisticated mitochondrial quality control (MQC) mechanism has evolved, encompassing key processes like mitochondrial biogenesis, mitochondrial dynamics, and mitophagy, which have garnered increasing attention from researchers to unveil their specific molecular mechanisms. In this review, we present a comprehensive summary of the primary mechanisms and functions of key regulators involved in major components of MQC. Furthermore, the critical physiological functions regulated by MQC and its diverse roles in the progression of various systemic diseases have been described in detail. We also discuss agonists or antagonists targeting MQC, aiming to explore potential therapeutic and research prospects by enhancing MQC to stabilize mitochondrial function.
Collapse
Affiliation(s)
- Bo-Hao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen-Zhen Xu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zi-Long Lu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ting-Lv Fu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Rui Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu Deng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Qing Luo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Song Ding
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| |
Collapse
|
3
|
Zang G, Chen Y, Guo G, Wan A, Li B, Wang Z. Protective Effect of CD137 Deficiency Against Postinfarction Cardiac Fibrosis and Adverse Cardiac Remodeling by ERK1/2 Signaling Pathways. J Cardiovasc Pharmacol 2024; 83:446-456. [PMID: 38416872 DOI: 10.1097/fjc.0000000000001549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/29/2024] [Indexed: 03/01/2024]
Abstract
ABSTRACT Myocardial fibrosis, a common complication of myocardial infarction (MI), is characterized by excessive collagen deposition and can result in impaired cardiac function. The specific role of CD137 in the development of post-MI myocardial fibrosis remains unclear. Thus, this study aimed to elucidate the effects of CD137 signaling using CD137 knockout mice and in vitro experiments. CD137 expression levels progressively increased in the heart after MI, particularly in myofibroblast, which play a key role in fibrosis. Remarkably, CD137 knockout mice exhibited improved cardiac function and reduced fibrosis compared with wild-type mice at day 28 post-MI. The use of Masson's trichrome and picrosirius red staining demonstrated a reduction in the infarct area and collagen volume fraction in CD137 knockout mice. Furthermore, the expression of alpha-smooth muscle actin and collagen I, key markers of fibrosis, was decreased in heart tissues lacking CD137. In vitro experiments supported these findings because CD137 depletion attenuated cardiac fibroblast differentiation, and migration, and collagen I synthesis. In addition, the administration of CD137L recombinant protein further promoted alpha-smooth muscle actin expression and collagen I synthesis, suggesting a profibrotic effect. Notably, the application of an inhibitor targeting the extracellular signal-regulated kinase 1/2 (ERK1/2) signaling pathway attenuated the profibrotic effects of CD137L. To conclude, this study provides evidence that CD137 plays a significant role in promoting myocardial fibrosis after MI. Inhibition of CD137 signaling pathways may hold therapeutic potential for mitigating pathological cardiac remodeling and improving post-MI cardiac function.
Collapse
MESH Headings
- Animals
- Fibrosis
- Myocardial Infarction/pathology
- Myocardial Infarction/metabolism
- Myocardial Infarction/genetics
- Myocardial Infarction/enzymology
- Myocardial Infarction/physiopathology
- Ventricular Remodeling/drug effects
- Mice, Knockout
- Tumor Necrosis Factor Receptor Superfamily, Member 9/metabolism
- Tumor Necrosis Factor Receptor Superfamily, Member 9/genetics
- Mice, Inbred C57BL
- Disease Models, Animal
- Male
- Collagen Type I/metabolism
- Collagen Type I/genetics
- Myofibroblasts/metabolism
- Myofibroblasts/pathology
- Myofibroblasts/enzymology
- MAP Kinase Signaling System
- Myocardium/pathology
- Myocardium/metabolism
- Myocardium/enzymology
- 4-1BB Ligand/metabolism
- 4-1BB Ligand/genetics
- Mitogen-Activated Protein Kinase 3/metabolism
- Mitogen-Activated Protein Kinase 1/metabolism
- Actins/metabolism
- Cells, Cultured
- Signal Transduction
- Cell Movement
- Mice
- Ventricular Function, Left
- Cell Differentiation
- Myocytes, Cardiac/pathology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/drug effects
Collapse
Affiliation(s)
- Guangyao Zang
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang, China; and
| | - Yiliu Chen
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang, China; and
| | - Ge Guo
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang, China; and
| | - Aijun Wan
- Department of Basic Medical Sciences, School of Nursing, Zhenjiang College, Zhenjiang, China
| | - Bo Li
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang, China; and
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang, China; and
| |
Collapse
|
4
|
Luo W, Du C, Huang H, Kong J, Ge Z, Lin L, Wang H. The Role of Macrophage Death in Periodontitis: A Review. Inflammation 2024:10.1007/s10753-024-02015-4. [PMID: 38691250 DOI: 10.1007/s10753-024-02015-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 01/21/2024] [Accepted: 03/28/2024] [Indexed: 05/03/2024]
Abstract
Periodontitis, an infectious inflammatory disease influenced by various factors, disrupts the delicate balance between the host microbiota and immunity. The resulting excessive immune response exacerbates the progressive destruction of the supporting periodontal tissue. Macrophages are essential elements of the host innate immune system. They are pivotal components in the periodontal immune microenvironment and actively participate in both physiological and pathological processes of periodontal tissue. When confronted with periodontitis-related irritant factors, macrophages may differentiate to pro- or anti-inflammatory subtypes that affect tissue homeostasis. Additionally, macrophages may die in response to bacterial infections, potentially affecting the severity of periodontitis. This article reviews the typical mechanisms underlying macrophage death and its effects on periodontitis. We describe five forms of macrophage death in periodontitis: apoptosis, pyroptosis, necroptosis, ferroptosis, and ETosis. Our review of macrophage death in the pathophysiology of periodontitis enhances comprehension of the pathogenesis of periodontitis that will be useful for clinical practice. Although our review elucidates the complex mechanisms by which macrophage death and inflammatory pathways perpetuate periodontitis, unresolved issues remain, necessitating further research.
Collapse
Affiliation(s)
- Wen Luo
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China
| | - Chengying Du
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China
| | - Hsiuwei Huang
- School of Stomatology, China Medical University, North Second Road 92, Shenyang, 110002, Liaoning Province, China
| | - Jie Kong
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China
| | - Ziming Ge
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China
| | - Li Lin
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China.
| | - Hongyan Wang
- Department of Periodontology, School of Stomatology, China Medical University, Nanjing North Street 117, Shenyang, 110000, Liaoning Province, China.
| |
Collapse
|
5
|
Beg MA, Huang M, Vick L, Rao KNS, Zhang J, Chen Y. Targeting mitochondrial dynamics and redox regulation in cardiovascular diseases. Trends Pharmacol Sci 2024; 45:290-303. [PMID: 38458847 DOI: 10.1016/j.tips.2024.02.001] [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: 01/10/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/10/2024]
Abstract
Accumulating evidence highlights the pivotal role of mitochondria in cardiovascular diseases (CVDs). Understanding the molecular mechanisms underlying mitochondrial dysfunction is crucial for developing targeted therapeutics. Recent years have seen substantial advancements in unraveling mitochondrial regulatory pathways in both normal and pathological states and the development of potent drugs. However, specific delivery of drugs into the mitochondria is still a challenge. We present recent findings on regulators of mitochondrial dynamics and reactive oxygen species (ROS), critical factors influencing mitochondrial function in CVDs. We also discuss advancements in drug delivery strategies aimed at overcoming the technical barrier in targeting mitochondria for CVD treatment.
Collapse
Affiliation(s)
| | - Minqi Huang
- HD Biosciences Inc. a WuXi AppTec company, San Diego, CA 92121, USA
| | - Lance Vick
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - K N Shashanka Rao
- Joint Department of Biomedical Engineering, Medical College of Wisconsin & Marquette University, Milwaukee, WI 53226, USA
| | - Jue Zhang
- Versiti Blood Research Institute, Milwaukee, WI 53226, USA
| | - Yiliang Chen
- Versiti Blood Research Institute, Milwaukee, WI 53226, USA; Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| |
Collapse
|
6
|
Zhou G, Liu Y, Wu H, Zhang D, Yang Q, Li Y. Research Progress on Histone Deacetylases Regulating Programmed Cell Death in Atherosclerosis. J Cardiovasc Transl Res 2024; 17:308-321. [PMID: 37821683 DOI: 10.1007/s12265-023-10444-z] [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: 05/07/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
Histone deacetylases (HDACs) are epigenetic modifying enzyme that is closely related to chromatin structure and gene transcription, and numerous studies have found that HDACs play an important regulatory role in atherosclerosis disease. Apoptosis, autophagy and programmed necrosis as the three typical programmed cell death modalities that can lead to cell loss and are closely related to the developmental process of atherosclerosis. In recent years, accumulating evidence has shown that the programmed cell death mediated by HDACs is increasingly important in the pathophysiology of atherosclerosis. This paper first gives a brief overview of HDACs, the mechanism of programmed cell death, and their role in atherosclerosis, and then further elaborates on the role and mechanism of HDACs in regulating apoptosis, autophagy, and programmed necrosis in atherosclerosis, respectively, to provide new effective measures and theoretical basis for the prevention and treatment of atherosclerosis.
Collapse
Affiliation(s)
- Gang Zhou
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China
- Department of Central Experimental Laboratory, Yichang Central People's Hospital, Yichang, 443003, China
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China
| | - Yanfang Liu
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China
- Department of Central Experimental Laboratory, Yichang Central People's Hospital, Yichang, 443003, China
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China
| | - Hui Wu
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China.
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China.
- Department of Cardiology, Yichang Central People's Hospital, Yiling Road 183, Yichang, 443003, Hubei, China.
| | - Dong Zhang
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China
- Department of Central Experimental Laboratory, Yichang Central People's Hospital, Yichang, 443003, China
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China
| | - Qingzhuo Yang
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China
- Department of Central Experimental Laboratory, Yichang Central People's Hospital, Yichang, 443003, China
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China
| | - Yi Li
- Institute of Cardiovascular Disease, China Three Gorges University, Yichang, 443003, China
- Department of Central Experimental Laboratory, Yichang Central People's Hospital, Yichang, 443003, China
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, 443003, China
| |
Collapse
|
7
|
Qiu F, Liu Y, Liu Y, Zhao Z, Zhou L, Chen P, Du Y, Wang Y, Sun H, Zeng C, Wang X, Liu Y, Pan H, Ke C. CD137L Inhibition Ameliorates Hippocampal Neuroinflammation and Behavioral Deficits in a Mouse Model of Sepsis-Associated Encephalopathy. Neuromolecular Med 2023; 25:616-631. [PMID: 37796401 PMCID: PMC10721669 DOI: 10.1007/s12017-023-08764-z] [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: 05/17/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
Anxiety manifestations and cognitive dysfunction are common sequelae in patients with sepsis-associated encephalopathy (SAE). Microglia-mediated inflammatory signaling is involved in anxiety, depression, and cognitive dysfunction during acute infection with bacterial lipopolysaccharide (LPS). However, the molecular mechanisms underlying microglia activation and behavioral and cognitive deficits in sepsis have not been in fully elucidated. Based on previous research, we speculated that the CD137 receptor/ligand system modulates microglia function during sepsis to mediate classical neurological SAE symptoms. A murine model of SAE was established by injecting male C57BL/6 mice with LPS, and cultured mouse BV2 microglia were used for in vitro assays. RT-qPCR, immunofluorescence staining, flow cytometry, and ELISA were used to assess microglial activation and the expression of CD137L and inflammation-related cytokines in the mouse hippocampus and in cultured BV2 cells. In addition, behavioral tests were conducted in assess cognitive performance and behavioral distress. Immunofluorescence and RT-qPCR analyses showed that hippocampal expression of CD137L was upregulated in activated microglia following LPS treatment. Pre-treatment with the CD137L neutralizing antibody TKS-1 significantly reduced CD137L levels, attenuated the expression of M1 polarization markers in microglia, and inhibited the production of TNF-α, IL-1β, and IL-6 in both LPS-treated mice and BV2 cells. Conversely, stimulation of CD137L signaling by recombinant CD137-Fc fusion protein activated the synthesis and release of pro-inflammatory cytokines in cultures BV2 microglia. Importantly, open field, elevated plus maze, and Y-maze spontaneous alternation test results indicated that TKS-1 administration alleviated anxiety-like behavior and spatial memory decline in mice with LPS-induced SAE. These findings suggest that CD137L upregulation in activated microglia critically contributes to neuroinflammation, anxiety-like behavior, and cognitive dysfunction in the mouse model of LPS-induced sepsis. Therefore, therapeutic modulation of the CD137L/CD137 signaling pathway may represent an effective way to minimize brain damage and prevent cognitive and emotional deficits associated with SAE.
Collapse
Affiliation(s)
- Fang Qiu
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, China
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yueming Liu
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China
| | - Yang Liu
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China
| | - Zhuyun Zhao
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China
| | - Lile Zhou
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China
| | - Pengfei Chen
- Department of Traumatic Orthopedics, Shenzhen Longhua District Central Hospital, Shenzhen, China
| | - Yunbo Du
- Department of Critical Care Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Yanmei Wang
- Department of Critical Care Medicine, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Huimin Sun
- Department of Medical Laboratory, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Changchun Zeng
- Department of Medical Laboratory, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Xiaokang Wang
- Department of Pharmacy, Shenzhen Longhua District Central Hospital, Shenzhen, Guangdong, China
| | - Yuqiang Liu
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518025, Guangdong, China.
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, China.
| | - Changneng Ke
- Department of Burn and Plastic Surgery, Shenzhen Longhua District Central Hospital, Shenzhen, 518110, Guangdong, China.
| |
Collapse
|
8
|
Huang Y, Li S, He S, Li Y, He Q, Wu Y. Chlamydia psittaci inclusion membrane protein CPSIT_0842 induces macrophage apoptosis through MAPK/ERK-mediated autophagy. Int J Biochem Cell Biol 2023; 157:106376. [PMID: 36716815 DOI: 10.1016/j.biocel.2023.106376] [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: 06/01/2022] [Revised: 12/20/2022] [Accepted: 01/26/2023] [Indexed: 01/29/2023]
Abstract
Chlamydia psittaci is a multi-host zoonotic pathogen, which mainly infects poultry and inflicts an appreciable economic burden on the livestock farming industry. C. psittaci inclusion membrane proteins are uniquely positioned at the host-pathogen interface and are important virulence proteins. We have previously confirmed that Incs regulate host cell survival to help Chlamydia sp. evade host-cell-mediated defense mechanisms. However, the role of the Inc, CPSIT_0842, in the regulation of cell death following the establishment of persistent C. psittaci infection remains unknown. This study explored the effect of CPSIT_0842 on the crosstalk between the autophagic and apoptotic pathways in macrophages. Results showed that CPSIT_0842 initiated autophagy and blocked autophagic flux in human macrophages, as indicated by autophagy-related protein LC3-II, Beclin-1, and p62 upregulation, autophagosome accumulation, and lysosomal protein LAMP1 diminution. We also showed that the disruption of autophagic flux had a regulatory effect on CPSIT_0842-induced apoptosis. Moreover, the suppression of autophagy initiation by 3-methyladenine attenuated CPSIT_0842-induced apoptosis. By contrast, the induction of autophagic flux by rapamycin did not significantly affect CPSIT_0842-induced apoptosis. Taken together, these findings demonstrate that CPSIT_0842 induced macrophage apoptosis by initiating incomplete autophagy through the MAPK/ERK/mTOR signaling pathway, which may be instrumental to the ability of C. psittaci to evade the host innate immune response and establish persistent infection. The improved understanding of the autophagic and cell death pathways triggered upon bacterial inclusion will likely help in the development of novel treatment strategies for chlamydia infection.
Collapse
Affiliation(s)
- Yanru Huang
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, Hunan, China
| | - Sijia Li
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, Hunan, China
| | - Siqin He
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, Hunan, China
| | - Yumeng Li
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, Hunan, China; Department of Clinical Laboratory, The First Affiliated Hospital of University of South China, Hengyang 421000, Hunan, China
| | - Qingzhi He
- School of Biotechnology, Guilin Medical University, Guilin 541199, China
| | - Yimou Wu
- Institute of Pathogenic Biology, Hengyang Medical School, University of South China, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, Hunan, China.
| |
Collapse
|
9
|
Kumar Kalvala A, Bagde A, Arthur P, Kumar Surapaneni S, Ramesh N, Nathani A, Singh M. Role of Cannabidiol and Tetrahydrocannabivarin on Paclitaxel-induced neuropathic pain in rodents. Int Immunopharmacol 2022; 107:108693. [PMID: 35303507 PMCID: PMC10791145 DOI: 10.1016/j.intimp.2022.108693] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/26/2022] [Accepted: 03/07/2022] [Indexed: 01/13/2023]
Abstract
The purpose of this study was to evaluate if phytocannabinoids, synthetic cannabidiol (CBD), and tetrahydrocannabivarin (THCV), and their combination, could protect mice from Paclitaxel-induced peripheral neuropathy (PIPN). Six groups of C57BL/6J mice (n = 6) were used in this study. The mice were given paclitaxel (PTX) (8 mg/kg/day, i.p.) on days 1, 3, 5, and 7 to induce neuropathy. Mice were evaluated for behavioral parameters, and dorsal root ganglions (DRG) were collected from the animals and subjected to RNA sequencing and westernblot analysis at the end of the study. On cultured DRGs derived from adult male rats, immunocytochemistry and mitochondrial functional assays were also performed. When compared to individual treatments, the combination of CBD and THCV improved thermal and mechanical neurobehavioral symptoms in mice by twofold. Targets for CBD and THCV therapy were identified by KEGG (RNA sequencing). PTX reduced the expression of p-AMPK, SIRT1, NRF2, HO1, SOD2, and catalase while increasing the expression of PI3K, p-AKT, p-P38 MAP kinase, BAX, TGF-β, NLRP3 inflammasome, and caspase 3 in DRG homogenates of mice. Combination therapy outperformed monotherapy in reversing these protein expressions. The addition of CBD and THCV to DRG primary cultures reduced mitochondrial superoxides while increasing mitochondrial membrane potentials. WAY100135 and rimonabant altered the neuroprotective effects of CBD and THCV respectively by blocking 5-HT1A and CB1 receptors in mice and DRG primary cultures. The entourage effect of CBD and THCV against PIPN appears to protect neurons in mice via 5HT1A and CB1 receptors respectively.
Collapse
Affiliation(s)
- Anil Kumar Kalvala
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Arvind Bagde
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Peggy Arthur
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Sunil Kumar Surapaneni
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Nimma Ramesh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Aakash Nathani
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Mandip Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, 32307, USA.
| |
Collapse
|
10
|
Xu Y, Chen R, Yan J, Zang G, Shao C, Wang Z. CD137 Signal Mediates Cardiac Ischemia-Reperfusion Injury by Regulating the Necrosis of Cardiomyocytes. J Cardiovasc Transl Res 2022; 15:1163-1175. [PMID: 35419772 DOI: 10.1007/s12265-022-10240-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/18/2022] [Indexed: 11/28/2022]
Abstract
The injury of cardiomyocytes after ischemia-reperfusion is the main reason of cardiac dysfunction. Necrosis is one of the methods of programmed cell death and cardiomyocyte necrosis occurs in the process of reperfusion. The activation of CD137 signal is involved in various diseases. In vivo experiments proved that CD137-/- mice have less heart damage than wild-type mice after ischemia-reperfusion. In vitro experiments, we found that after inhibiting the CD137 signal, the degree of necrosis of HL-1 cells was reduced and it was caused by reducing the Ca2 + overload in the mitochondria, which caused the reduction of mPTP opening. Ca2 + overload in mitochondria induced by activation of CD137 signal was caused by increased Ca2 + released into mitochondria by activation of IP3R and increased MCU level. These results indicate that CD137 signaling aggravates cardiac ischemia-reperfusion injury by inducing myocardial cell necrosis.
Collapse
Affiliation(s)
- Yao Xu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Rui Chen
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Jinchuan Yan
- Health Science Center, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Guangyao Zang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Chen Shao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.
| |
Collapse
|
11
|
Zhu YC, Liang B, Gu N. Cellular and Molecular Mechanism of Traditional Chinese Medicine on Ventricular Remodeling. Front Cardiovasc Med 2021; 8:753095. [PMID: 34926607 PMCID: PMC8671630 DOI: 10.3389/fcvm.2021.753095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/25/2021] [Indexed: 12/24/2022] Open
Abstract
Ventricular remodeling is related to the renin-angiotensin-aldosterone system, immune system, and various cytokines involved in inflammation, apoptosis, and cell signal regulation. Accumulated studies have shown that traditional Chinese medicine can significantly inhibit the process of ventricular remodeling, which may be related to the mechanism mentioned above. Here, we conducted a system overview to critically review the cellular and molecular mechanism of traditional Chinese medicine on ventricular remodeling. We mainly searched PubMed for basic research about the anti-ventricular remodeling of traditional Chinese medicine in 5 recent years, and then objectively summarized these researches. We included more than 25 kinds of Chinese herbal medicines including Qi-Li-Qian-Xin, Qi-Shen-Yi-Qi Pill, Xin-Ji-Er-Kang Formula, and Yi-Qi-Wen-Yang Decoction, and found that they can inhibit ventricular remodeling effectively through multi-components and multi-action targets, which are promoting the clinical application of traditional Chinese medicine.
Collapse
Affiliation(s)
- Yong-Chun Zhu
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Bo Liang
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Ning Gu
- Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| |
Collapse
|