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Li C, Mao Y, Liu Y, Hu J, Su C, Tan H, Hou X, Ou M. Machine learning-based integration develops a multiple programmed cell death signature for predicting the clinical outcome and drug sensitivity in colorectal cancer. Anticancer Drugs 2024:00001813-990000000-00320. [PMID: 39132895 DOI: 10.1097/cad.0000000000001654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Tumorigenesis and treatment are closely associated with various programmed cell death (PCD) patterns. However, the coregulatory role of multiple PCD patterns in colorectal cancer (CRC) remains unknown. In this study, we developed a multiple PCD index (MPCDI) based on 19 PCD patterns using two machine learning algorithms for risk stratification, prognostic prediction, construction of nomograms, immune cell infiltration analysis, and chemotherapeutic drug sensitivity analysis. As a result, in the TCGA-COAD, GSE17536, and GSE29621 cohorts, the MPCDI can effectively distinguished survival outcomes in CRC patients and served as an independent factor for CRC patients. We then explored the immune infiltration landscape in two groups using the nine algorithms and found more overall immune infiltration in the high-MPCDI group. TIDE scores suggested that the increased immune evasion potential and immune checkpoint inhibition therapy may be less effective in the high-MPCDI group. Immunophenoscores indicated that anti-PD1, anti-cytotoxic T-lymphocyte associated antigen 4 (anti-CTLA4), and anti-PD1-CTLA4 combination therapies are less effective in the high-MPCDI group. In addition, the high-MPCDI group was more sensitive to AZD1332, Foretinib, and IGF1R_3801, and insensitive to AZD3759, AZD5438, AZD6482, Erlotinib, GSK591, IAP_5620, and Picolinici-acid, which suggests that the MPCDI can guide drug selection for CRC patients. As a new clinical classifier, the MPCDI can more accurately distinguish CRC patients who benefit from immunotherapy and develop personalized treatment strategies for CRC patients.
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Affiliation(s)
- Chunhong Li
- Central Laboratory, The Second Affiliated Hospital of Guilin Medical University
- Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University
| | - Yuhua Mao
- Department of Obstetrics, The Second Affiliated Hospital of Guilin Medical University
| | - Yi Liu
- Department of Obstetrics, The Second Affiliated Hospital of Guilin Medical University
| | - Jiahua Hu
- Central Laboratory, The Second Affiliated Hospital of Guilin Medical University
- Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University
| | - Chunchun Su
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guilin Medical University and
| | - Haiyin Tan
- School of Medical Laboratory Medicine, Guilin Medical University, Guilin, China
| | - Xianliang Hou
- Central Laboratory, The Second Affiliated Hospital of Guilin Medical University
- Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University
| | - Minglin Ou
- Central Laboratory, The Second Affiliated Hospital of Guilin Medical University
- Guangxi Health Commission Key Laboratory of Glucose and Lipid Metabolism Disorders, The Second Affiliated Hospital of Guilin Medical University
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陈 秀, 王 瑞, 单 红, 周 平, 李 蓉. [Quercetin Alleviates H 2O 2-Induced Oxidative Stress Damage to Human Endometrial Stromal Cells by Inhibiting the p38 MAPK/NOX4 Signaling Pathway]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:552-558. [PMID: 38948281 PMCID: PMC11211778 DOI: 10.12182/20240560107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Indexed: 07/02/2024]
Abstract
Objective This study aims to systematically evaluate the protective role of quercetin (QCT), a naturally occurring flavonoid, against oxidative damage in human endometrial stromal cells (HESCs) induced by hydrogen peroxide (H2O2). Oxidative stress, such as that induced by H2O2, is known to contribute significantly to cellular damage and has been implicated in various reproductive health issues. The study is focused on investigating how QCT interacts with specific molecular pathways to mitigate this damage. Special attention was given to the p38 MAPK/NOX4 signaling pathway, which is crucial to the regulation of oxidative stress responses in cellular systems. By elucidating these mechanisms, the study seeks to confirm the potential of QCT not only as a protective agent against oxidative stress but also as a therapeutic agent that could be integrated in treatments of conditions characterized by heightened oxidative stress in endometrial cells. Methods I n vitro cultures of HESCs were treated with QCT at different concentrations (0, 10, 20, and 40 μmol/L) for 24 h to verify the non-toxic effects of QCT on normal endometrial cells. Subsequently, 250 μmol/L H2O2 was used to incubate the cells for 12 h to establish an H2O2-induced HESCs injury model. HESCs were pretreated with QCT for 24 h, which was followed by stimulation with H2O2. Then, CCK-8 assay was performed to examine the cell viability and to screen for the effective intervention concentration. HESCs were divided into 3 groups, the control group, the H2O2 model group, and the H2O2+QCT group. Intracellular levels of reactive oxygen species (ROS) were precisely quantified using the DCFH-DA fluorescence assay, a method known for its accuracy in detecting and quantifying oxidative changes within the cell. The mitochondrial membrane potential was determined by JC-1 staining. Annexin Ⅴ/PI double staining and flow cytometry were performed to determine the effect of QCT on H2O2-induced apoptosis of HESCs. Furthermore, to delve deeper into the cellular mechanisms underlying the observed effects, Western blot analysis was conducted to measure the expression levels of the critical proteins involved in oxidative stress response, including NADPH oxidase 4 (NOX4), p38 mitogen-activated protein kinase (p38 MAPK), and phosphorylated p38 MAPK (p-p38 MAPK). This analysis helps increase understanding of the specific intracellular signaling pathways affected by QCT treatment, giving special attention to its potential for modulation of the p38 MAPK/NOX4 pathway, which plays a significant role in cellular defense mechanisms against oxidative stress. Results In this study, we started off by assessing the toxicity of QCT on normal endometrial cells. Our findings revealed that QCT at various concentrations (0, 10, 20, and 40 μmol/L) did not exhibit any cytotoxic effects, which laid the foundation for further investigation into its protective roles. In the H2O2-induced HESCs injury model, a significant reduction in cell viability was observed, which was linked to the generation of ROS and the resultant oxidative damage. However, pretreatment with QCT (10 μmol/L and 20 μmol/L) significantly enhanced cell viability after 24 h (P<0.05), with the 20 μmol/L concentration showing the most substantial effect. This suggests that QCT can effectively reverse the cellular damage caused by H2O2. Furthermore, the apoptosis assays demonstrated a significant increase in the apoptosis rates in the H2O2 model group compared to those in the control group (P<0.01). However, co-treatment with QCT significantly reversed this trend (P<0.05), indicating QCT's potential protective role in mitigating cell apoptosis. ROS assays showed that, compared to that in the control group, the average fluorescence intensity of ROS in the H2O2 model group significantly increased (P<0.01). QCT treatment significantly reduced the ROS fluorescence intensity in the H2O2+QCT group compared to the that in the H2O2 model group, suggesting an effective alleviation of oxidative damage (P<0.05). JC-1 staining for mitochondrial membrane potential changes revealed that compared to that in the control, the proportion of cells with decreased mitochondrial membrane potential significantly increased in the H2O2 model group (P<0.01). However, this proportion was significantly reduced in the QCT-treated group compared to that of the H2O2 model group (P<0.05). Finally, Western blot analysis indicated that the expression levels of NOX4 and p-p38 MAPK proteins were elevated in the H2O2 model group compared to those of the control group (P<0.05). Following QCT treatment, these protein levels significantly decreased compared to those of the H2O2 model group (P<0.05). These results suggest that QCT may exert its protective effects against oxidative stress by modulating the p38 MAPK/NOX4 signaling pathway. Conclusion QCT has demonstrated significant protective effects against H2O2-induced oxidative damage in HESCs. This protection is primarily achieved through the effective reduction of ROS accumulation and the inhibition of critical signaling pathways involved in the oxidative stress response, notably the p38 MAPK/NOX4 pathway. The results of this study reveal that QCT's ability to modulate these pathways plays a key role in alleviating cellular damage associated with oxidative stress conditions. This indicates not only its potential as a protective agent against cellular oxidative stress, but also highlights its potential for therapeutic applications in treating conditions characterized by increased oxidative stress in the endometrium, thereby offering the prospect of enhancing reproductive health. Future studies should explore the long-term effects of QCT and its clinical efficacy in vivo, thereby providing a clear path toward its integration into therapeutic protocols.
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Affiliation(s)
- 秀楠 陈
- 北京大学第三医院 生殖医学中心 (北京 100191)Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - 瑞琦 王
- 北京大学第三医院 生殖医学中心 (北京 100191)Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - 红英 单
- 北京大学第三医院 生殖医学中心 (北京 100191)Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - 平 周
- 北京大学第三医院 生殖医学中心 (北京 100191)Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - 蓉 李
- 北京大学第三医院 生殖医学中心 (北京 100191)Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
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Wu LF, Zhou Y, Wang DP, Zhang JJ, Zheng ZF, Guo J, Shen J, Shi JY, Liu QH, Wang XN, Wang HX, Du WJ, Li ML, Cao JM. Nerve growth factor (Ngf) gene-driven semaphorin 3a (Sema3a) expression exacerbates thoracic aortic aneurysm dissection in mice. J Hypertens 2024; 42:816-827. [PMID: 38165021 DOI: 10.1097/hjh.0000000000003647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Thoracic aortic aneurysm and dissection (TAAD) is a life-threatening disease and currently there is no pharmacological therapy. Sympathetic nerve overactivity plays an important role in the development of TAAD. Sympathetic innervation is mainly controlled by nerve growth factor (NGF, a key neural chemoattractant) and semaphoring 3A (Sema3A, a key neural chemorepellent), while the roles of these two factors in aortic sympathetic innervation and especially TAAD are unknown. We hypothesized that genetically manipulating the NGF/Sema3A ratio by the Ngf -driven Sema3a expression approach may reduce aortic sympathetic nerve innervation and mitigate TAAD progression. A mouse strain of Ngf gene-driven Sema3a expression (namely NgfSema3a/Sema3a mouse) was established by inserting the 2A-Sema3A expression frame to the Ngf terminating codon using CRISPR/Cas9 technology. TAAD was induced by β-aminopropionitrile monofumarate (BAPN) both in NgfSema3a/Sema3a mice and wild type (WT) littermates. Contrary to our expectation, the BAPN-induced TAAD was severer in NgfSema3a/Sema3a mice than in wild-type (WT) mice. In addition, NgfSema3a/Sema3a mice showed higher aortic sympathetic innervation, inflammation and extracellular matrix degradation than the WT mice after BAPN treatment. The aortic vascular smooth muscle cells isolated from NgfSema3a/Sema3a mice and pretreated with BAPN in vivo for two weeks showed stronger capabilities of proliferation and migration than that from the WT mice. We conclude that the strategy of Ngf -driven Sema3a expression cannot suppress but worsens the BAPN-induced TAAD. By investigating the aortic phenotype of NgfSema3a/Sema3a mouse strain, we unexpectedly find a path to exacerbate BAPN-induced TAAD which might be useful in future TAAD studies.
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Affiliation(s)
- Li-Fei Wu
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
- Department of Pathophysiology, Shanxi Medical University
| | - Ying Zhou
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
| | - De-Ping Wang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
| | - Jiao-Jiao Zhang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
| | - Zhi-Fa Zheng
- Department of Cardiovascular Surgery, Shanxi Bethune Hospital
| | - Jia Guo
- Center for Hypertension Care, Shanxi Medical University First Hospital
| | - Jing Shen
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
| | - Jian-Yun Shi
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
| | - Qing-Hua Liu
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Pathophysiology, Shanxi Medical University
| | - Xue-Ning Wang
- Department of Cardiovascular Surgery, Shanxi Bethune Hospital
| | - Hai-Xiong Wang
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan
| | - Wen-Jing Du
- State Key Laboratory of Medical Molecular Biology, Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing
| | - Miao-Ling Li
- Key Laboratory of Medical Electrophysiology at Southwest Medical University, Ministry of Education, and the Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Ji-Min Cao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education
- Department of Physiology, Shanxi Medical University
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Gao Y, Lu X, Zhang G, Liu C, Sun S, Mao W, Jiang G, Zhou Y, Zhang N, Tao S, Chen M, Chen S, Zhang L. DRD4 alleviates acute kidney injury by suppressing ISG15/NOX4 axis-associated oxidative stress. Redox Biol 2024; 70:103078. [PMID: 38354631 PMCID: PMC10876914 DOI: 10.1016/j.redox.2024.103078] [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: 11/21/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024] Open
Abstract
Acute kidney injury (AKI) is a life-threatening health condition associated with increasing morbidity and mortality. Despite extensive research on the mechanisms underlying AKI, effective clinical tools for prediction and treatment remain scarce. Oxidative stress and mitochondrial damage play a critical role in AKI and dopamine D4 receptor (DRD4) has been confirmed to be associated with oxidative stress. In this study, we hypothesized that DRD4 could attenuate AKI through its antioxidative and antiapoptotic effects. In vivo, DRD4 was remarkably decreased in the kidneys of mice subjected to ischemia/reperfusion injury (IRI) or cisplatin treatment. Notably, DRD4 significantly attenuated nephrotoxicity by suppressing oxidative stress and enhancing mitochondrial bioenergetics through the downregulation of reactive oxygen species (ROS) generation and NADPH oxidase 4 (NOX4) expression. In vitro, DRD4 demonstrated the ability to ameliorate oxidative stress-induced apoptosis in HK-2 cells subjected to hypoxia/reoxygenation- or cisplatin treatment. Transcriptome sequencing revealed that, mechanistically, DRD4 reduced the expression of its downstream target, interferon-stimulated gene 15 (ISG15), suppressing NOX4 ISGylation, enhancing the ubiquitination of NOX4, leading to its degradation, and ultimately counteracting oxidative stress-induced AKI. Altogether, these findings underscore the significance of DRD4 in AKI and elucidate DRD4 as a potential protectant against IRI or cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Yue Gao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Xun Lu
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Guangyuan Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Chunhui Liu
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Si Sun
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Weipu Mao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Guiya Jiang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Yu Zhou
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China
| | - Nieke Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Shuchun Tao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Ming Chen
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
| | - Shuqiu Chen
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
| | - Lei Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
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Qin HJ, He SY, Shen K, Lin QR, Hu YJ, Chen ZL, Yu B, Jiang N. Melatonin, a potentially effective drug for the treatment of infected bone nonunion. J Pineal Res 2024; 76:e12914. [PMID: 37753741 DOI: 10.1111/jpi.12914] [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: 05/30/2023] [Revised: 09/07/2023] [Accepted: 09/09/2023] [Indexed: 09/28/2023]
Abstract
Osteomyelitis (OM), characterized by heterogeneity and complexity in treatment, has a high risk of infection recurrence which may cause limb disability. Management of chronic inactive osteomyelitis (CIOM) without typical inflammatory symptoms is a great challenge for orthopedic surgeons. On the basis of data analysis of 1091 OM cases, we reported that latent osteogenic decline in CIOM patients was the main cause of secondary surgery. Our research shows that impairment of osteoblasts capacity in CIOM patients is associated with ferroptosis of osteoblasts caused by internalization of Staphylococcus aureus. Further studies show that melatonin could alleviate ferroptosis of osteoblasts in infected states through Nox4/ROS/P38 axis and protect the osteogenic ability of CIOM patients. Knockout of NADPH oxidase 4 (Nox4) in vivo could effectively relieve ferroptosis of osteoblasts in the state of infection and promote osteogenesis. Through a large number of clinical data analyses combined with molecular experiments, this study clarified that occult osteogenic disorders in CIOM patients were related to ferroptosis of osteoblasts. We revealed that melatonin might be a potential therapeutic drug for CIOM patients and provided a new insight for the treatment of OM.
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Affiliation(s)
- Han-Jun Qin
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Si-Ying He
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ke Shen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qing-Rong Lin
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yan-Jun Hu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zi-Lin Chen
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Nan Jiang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Wu H, Chen L, Lu K, Liu Y, Lu W, Jiang J, Weng C. HMGB2 Deficiency Mitigates Abdominal Aortic Aneurysm by Suppressing Ang-II-Caused Ferroptosis and Inflammation via NF- κβ Pathway. Mediators Inflamm 2023; 2023:2157355. [PMID: 38148870 PMCID: PMC10751175 DOI: 10.1155/2023/2157355] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/13/2023] [Accepted: 10/20/2023] [Indexed: 12/28/2023] Open
Abstract
Background Ferroptosis is a new form of cell death, which is closely related to the occurrence of many diseases. Our work focused on the mechanism by which HMGB2 regulate ferroptosis and inflammation in abdominal aortic aneurysm (AAA). Methods Reverse transcription-quantitative polymerase chain reaction and western blot were utilized to assess HMGB2 levels. CCK-8 and flow cytometry assays were utilized to measure cell viability and apoptosis. We detected reactive oxygen species generation, Fe2+ level, and ferroptosis-related protein levels in Ang-II-treated VSMCs, which were typical characteristics of ferroptosis. Finally, the mice model of AAA was established to verify the function of HMGB2 in vivo. Results Increased HMGB2 level was observed in Ang-II-treated VSMCs and Ang-II-induced mice model. HMGB2 depletion accelerated viability and impeded apoptosis in Ang-II-irritatived VSMCs. Moreover, HMGB2 deficiency neutralized the increase of ROS in VSMCs caused by Ang-II. HMGB2 silencing considerably weakened Ang-II-caused VSMC ferroptosis, as revealed by the decrease of Fe2+ level and ACSL4 and COX2 levels and the increase in GPX4 and FTH1 levels. Furthermore, the mitigation effects of shHMGB2 on Ang-II-induced VSMC damage could be counteracted by erastin, a ferroptosis agonist. Mechanically, HMGB2 depletion inactivated the NF-κβ signaling in Ang-II-treated VSMCs. Conclusions Our work demonstrated that inhibition of HMGB2-regulated ferroptosis and inflammation to protect against AAA via NF-κβ signaling, suggesting that HMGB2 may be a potent therapeutic agent for AAA.
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Affiliation(s)
- Hao Wu
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Legao Chen
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Kaiping Lu
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Yi Liu
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Weiqin Lu
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Jinsong Jiang
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
| | - Chao Weng
- Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, 158 Shangtang Road, Hangzhou, Zhejiang, China
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Haddish K, Yun JW. Dopamine receptor D4 (DRD4) negatively regulates UCP1- and ATP-dependent thermogenesis in 3T3-L1 adipocytes and C2C12 muscle cells. Pflugers Arch 2023; 475:757-773. [PMID: 37103560 DOI: 10.1007/s00424-023-02816-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/05/2023] [Accepted: 04/20/2023] [Indexed: 04/28/2023]
Abstract
The activation of beige fat and muscle tissues is an interesting and encouraging target for therapeutic intervention in obesity owing to their remarkable lipolytic activity and energy-consuming futile cycles. This study examined the effect of dopamine receptor D4 (DRD4) on lipid metabolisms as well as UCP1- and ATP-dependent thermogenesis in Drd4-silenced 3T3-L1 adipocytes and C2C12 muscle cells. Silencing of Drd4, followed by quantitative real-time PCR, immunoblot analysis, immunofluorescence, and staining methods, were applied to evaluate the effects of DRD4 on diverse target genes and proteins of both cells. The findings showed that DRD4 was expressed in the adipose and muscle tissues of normal and obese mice. Furthermore, the knockdown of Drd4 upregulated the expression of brown adipocyte-specific genes and proteins while downregulating lipogenesis and the adipogenesis marker proteins. Drd4 silencing also upregulated the expression of key signaling molecules involved in ATP-dependent thermogenesis in both cells. This was further elucidated by mechanistic studies showing that a Drd4 knockdown mediates UCP1-dependent thermogenesis via the cAMP/PKA/p38MAPK pathway in 3T3-L1 adipocytes and UCP1-independent thermogenesis via the cAMP/SLN/SERCA2a pathway in C2C12 muscle cells. In addition, siDrd4 also mediates myogenesis via the cAMP/PKA/ERK1/2/Cyclin D3 pathway in C2C12 muscle cells. Silencing of Drd4 promotes β3-AR-dependent browning in 3T3-L1 adipocytes and α1-AR/SERCA-based thermogenesis through an ATP-consuming futile process in C2C12 muscle cells. Understanding the novel functions of DRD4 on adipose and muscle tissues in terms of its ability to enhance energy expenditure and regulate whole-body energy metabolism will aid in developing novel obesity intervention techniques.
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Affiliation(s)
- Kiros Haddish
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Jong Won Yun
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
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Sun L, Li X, Luo Z, Li M, Liu H, Zhu Z, Wang J, Lu P, Wang L, Yang C, Wang T, He H, Li M, Shu C, Li J. Purinergic receptor P2 × 7 contributes to abdominal aortic aneurysm development via modulating macrophage pyroptosis and inflammation. Transl Res 2023:S1931-5244(23)00042-7. [PMID: 36967061 DOI: 10.1016/j.trsl.2023.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 04/17/2023]
Abstract
The purinergic receptor P2 × 7 has been established as an important mediator of inflammation and participates in a variety of cardiovascular diseases including atherosclerosis, however, its role in abdominal aortic aneurysms (AAA) remains unclear. In this study, we demonstrate that P2 × 7 plays essential roles in AAA development via modulating macrophage pyroptosis and inflammation. P2 × 7 is highly expressed in human AAA specimen, as well as in experimental murine AAA lesions (both CaCl2-and Angiotensin Ⅱ-induced AAA models), and it mainly confines in macrophages. Furthermore, P2 × 7 deficiency or pharmacological inhibition with its antagonist could significantly attenuate aneurysm formation in experimental murine AAA models, while P2 × 7 agonist could promote AAA development. The caspase-I activity, matrix metalloproteinase (MMP) activity, reactive oxygen species (ROS) production and pro-inflammatory gene expression were significant reduced in experimental AAA lesions in mice with P2 × 7 deficiency or inhibition. Mechanistically, macrophage P2 × 7 can mediate the activation of NLRP3 inflammasome and activate its downstream caspase-1 to initiate the pyroptosis pathway. After caspase-1 activation, it further cleaves pro-interleukin (IL)-1β and gasdermin D (GSDMD). Consequently, the N-terminal fragment of GSDMD forms pores on the cell membrane, leading to macrophage pyroptosis and release of the pro-inflammatory factor IL-1β. The resulting vascular inflammation further leads to the upregulation of MMP and ROS, thereby promoting AAA development. In summary, these data identify P2 × 7-mediated macrophage pyroptosis signaling pathway as a novel contributory mechanism of AAA formation.
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Affiliation(s)
- Likun Sun
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China; Department of Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xin Li
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Zhongchen Luo
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Maohua Li
- Molecular Biology Research Center, School of Life Science, Central South University, Changsha, 410012, China
| | - Hongyu Liu
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Zhaowei Zhu
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Junwei Wang
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Peng Lu
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Lunchang Wang
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Chenzi Yang
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Tun Wang
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Hao He
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Ming Li
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China
| | - Chang Shu
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China; Center of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
| | - Jiehua Li
- Department of Vascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China; Vascular Diseases Institute of Central South University, Changsha, 410011, China.
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Liu R, Huang SS, Shi H, Chang S, Ge J. Alpha-lipoic acid protects against aortic aneurysm and dissection by improving vascular smooth muscle cell function. Life Sci 2022; 311:121159. [DOI: 10.1016/j.lfs.2022.121159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/26/2022] [Accepted: 11/05/2022] [Indexed: 11/10/2022]
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10
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Byrne SE, Vishwakarma N, Sriramula S, Katwa LC. Dopamine receptor 3: A mystery at the heart of cardiac fibrosis. Life Sci 2022; 308:120918. [PMID: 36041503 DOI: 10.1016/j.lfs.2022.120918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 07/27/2022] [Accepted: 08/24/2022] [Indexed: 10/31/2022]
Abstract
Dopamine receptors have been extensively studied in the mammalian brain and spinal cord, as dopamine is a vital determinant of bodily movement, cognition, and overall behavior. Thus, dopamine receptor antagonist antipsychotic drugs are commonly used to treat multiple psychiatric disorders. Although less discussed, these receptors are also expressed in other peripheral organ systems, such as the kidneys, eyes, gastrointestinal tract, and cardiac tissue. Consequently, therapies for certain psychiatric disorders which target dopamine receptors could have unidentified consequences on certain functions of these peripheral tissues. The existence of an intrinsic dopaminergic system in the human heart remains controversial and debated within the literature. Therefore, this review focuses on literature related to dopamine receptors within cardiac tissue, specifically dopamine receptor 3 (D3R), and summarizes the current state of knowledge while highlighting areas of research which may be lacking. Additionally, recent findings regarding crosstalk between D3R and dopamine receptor 1 (D1R) are examined. This review discusses the novel concept of understanding the role of the loss of function of D3R may play in collagen accumulation and cardiac fibrosis, eventually leading to heart failure.
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Affiliation(s)
- Shannon E Byrne
- Department of Physiology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Nandini Vishwakarma
- Department of Physiology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Srinivas Sriramula
- Department of Pharmacology and Toxicology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA
| | - Laxmansa C Katwa
- Department of Physiology, Brody School of Medicine at East Carolina University, Greenville, NC 27834, USA.
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11
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Stofkova A, Zloh M, Andreanska D, Fiserova I, Kubovciak J, Hejda J, Kutilek P, Murakami M. Depletion of Retinal Dopaminergic Activity in a Mouse Model of Rod Dysfunction Exacerbates Experimental Autoimmune Uveoretinitis: A Role for the Gateway Reflex. Int J Mol Sci 2021; 23:ijms23010453. [PMID: 35008877 PMCID: PMC8745287 DOI: 10.3390/ijms23010453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 12/20/2022] Open
Abstract
The gateway reflex is a mechanism by which neural inputs regulate chemokine expression at endothelial cell barriers, thereby establishing gateways for the invasion of autoreactive T cells into barrier-protected tissues. In this study, we hypothesized that rod photoreceptor dysfunction causes remodeling of retinal neural activity, which influences the blood–retinal barrier and the development of retinal inflammation. We evaluated this hypothesis using Gnat1rd17 mice, a model of night blindness with late-onset rod-cone dystrophy, and experimental autoimmune uveoretinitis (EAU). Retinal remodeling and its effect on EAU development were investigated by transcriptome profiling, target identification, and functional validation. We showed that Gnat1rd17 mice primarily underwent alterations in their retinal dopaminergic system, triggering the development of an exacerbated EAU, which was counteracted by dopamine replacement with L-DOPA administered either systemically or locally. Remarkably, dopamine acted on retinal endothelial cells to inhibit NF-κB and STAT3 activity and the expression of downstream target genes such as chemokines involved in T cell recruitment. These results suggest that rod-mediated dopamine release functions in a gateway reflex manner in the homeostatic control of immune cell entry into the retina, and the loss of retinal dopaminergic activity in conditions associated with rod dysfunction increases the susceptibility to autoimmune uveitis.
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Affiliation(s)
- Andrea Stofkova
- Department of Physiology, Third Faculty of Medicine, Charles University, Ke Karlovu 4, 120 00 Prague, Czech Republic; (M.Z.); (D.A.); (I.F.)
- Correspondence: ; Tel.: +420-224-902-718
| | - Miloslav Zloh
- Department of Physiology, Third Faculty of Medicine, Charles University, Ke Karlovu 4, 120 00 Prague, Czech Republic; (M.Z.); (D.A.); (I.F.)
| | - Dominika Andreanska
- Department of Physiology, Third Faculty of Medicine, Charles University, Ke Karlovu 4, 120 00 Prague, Czech Republic; (M.Z.); (D.A.); (I.F.)
| | - Ivana Fiserova
- Department of Physiology, Third Faculty of Medicine, Charles University, Ke Karlovu 4, 120 00 Prague, Czech Republic; (M.Z.); (D.A.); (I.F.)
- Department of Pathophysiology, Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague, Czech Republic
| | - Jan Kubovciak
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic;
| | - Jan Hejda
- Department of Health Care and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3105, 272 01 Kladno, Czech Republic; (J.H.); (P.K.)
| | - Patrik Kutilek
- Department of Health Care and Population Protection, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna Sq. 3105, 272 01 Kladno, Czech Republic; (J.H.); (P.K.)
| | - Masaaki Murakami
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-0815, Japan;
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