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Zhu Y, Chai XX, Zhao Y, Feng Q, Dong R, Shi MJ, Zhou J, Zhao Y, Peng J, Tian Y, Chen G, Luo C, Sheng J. Saturated fatty acids synergizes cadmium to induce macrophages M1 polarization and hepatic inflammation. Ecotoxicol Environ Saf 2023; 259:115040. [PMID: 37235898 DOI: 10.1016/j.ecoenv.2023.115040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023]
Abstract
Exposure to the toxic metal cadmium (Cd) is a well-established risk factor for hepatic inflammation, but it remains unclear how metabolic components, such as different fatty acids (FAs), interact with Cd to influence this process. Understanding these interactions is essential for identifying potential preventative and therapeutic targets for this disorder. To address this question, we conducted in vitro and in vivo studies to investigate the combinatorial effect of Cd and saturated FAs on hepatic inflammation. Specifically, we assessed the cytotoxicity of Cd on macrophages and their polarization and inflammatory activation upon co-exposure to Cd and saturated FAs. Our results showed that while saturated FAs had minimal impact on the cytotoxicity of Cd on macrophages, they significantly collaborated with Cd in predisposing macrophages towards a pro-inflammatory M1 polarization, thereby promoting inflammatory activation. This joint effect of Cd and saturated FAs resulted in persistent inflammation and hepatic steatohepatitis in vivo. In summary, our study identified macrophage polarization as a novel mechanism by which co-exposure to Cd and saturated lipids induces hepatic inflammation. Our findings suggest that intervening in macrophage polarization may be a potential approach for mitigating the adverse hepatic effects of Cd.
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Affiliation(s)
- Yi Zhu
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Xin-Xin Chai
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuanyuan Zhao
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Qiao Feng
- Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Rong Dong
- NHC Key Laboratory of Pulmonary Immunological Diseases (Guizhou Provincial People's Hospital), Guiyang, China
| | - Meng-Jie Shi
- MD-PhD Program, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiang Zhou
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Yurong Zhao
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Junxuan Peng
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Youjia Tian
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Guangdi Chen
- Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China
| | - Chi Luo
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China.
| | - Jinghao Sheng
- Institute of Environmental Medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China; Zhejiang Provincial Key Laboratory of Bioelectromagnetics, Zhejiang University School of Medicine, Hangzhou, China.
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Xu Z, Xi F, Deng X, Ni Y, Pu C, Wang D, Lou W, Zeng X, Su N, Chen C, Zeng Z, Deng L, Jiang M. Osteopontin Promotes Macrophage M1 Polarization by Activation of the JAK1/STAT1/HMGB1 Signaling Pathway in Nonalcoholic Fatty Liver Disease. J Clin Transl Hepatol 2023; 11:273-283. [PMID: 36643029 PMCID: PMC9817049 DOI: 10.14218/jcth.2021.00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 01/18/2023] Open
Abstract
Background and Aims Osteopontin (OPN) is reported to be associated with the pathogenesis of nonalcoholic fatty liver disease (NAFLD). However, the function of OPN in NAFLD is still inconclusive. Therefore, our aim in this study was to evaluate the role of OPN in NAFLD and clarify the involved mechanisms. Methods We analyzed the expression change of OPN in NAFLD by bioinformatic analysis, qRT-PCR, western blotting and immunofluorescence staining. To clarify the role of OPN in NAFLD, the effect of OPN from HepG2 cells on macrophage polarization and the involved mechanisms were examined by FACS and western blotting. Results OPN was significantly upregulated in NAFLD patients compared with normal volunteers by microarray data, and the high expression of OPN was related with disease stage and progression. OPN level was also significantly increased in liver tissue samples of NAFLD from human and mouse, and in HepG2 cells treated with oleic acid (OA). Furthermore, the supernatants of OPN-treated HepG2 cells promoted the macrophage M1 polarization. Mechanistically, OPN activated the janus kinase 1(JAK1)/signal transducers and activators of transcription 1 (STAT1) signaling pathway in HepG2 cells, and consequently HepG2 cells secreted more high-mobility group box 1 (HMGB1), thereby promoting macrophage M1 polarization. Conclusions OPN promoted macrophage M1 polarization by increasing JAK1/STAT1-induced HMGB1 secretion in hepatocytes.
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Affiliation(s)
- Zhihao Xu
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Feiyang Xi
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Xinxin Deng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
- School of Pharmacy, Nanchang University, Nanchang, Jiangxi, China
| | - Yuqi Ni
- Central Laboratory, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Changqin Pu
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Dan Wang
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Weiming Lou
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Xufang Zeng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Ning Su
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Chen Chen
- School of Basic Medical Science, Nanchang University, Nanchang, Jiangxi, China
| | - Ziqiang Zeng
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Libin Deng
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Meixiu Jiang
- The Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi, China
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Chen L, Dai M, Zuo W, Dai Y, Yang Q, Yu S, Huang M, Liu H. NF-κB p65 and SETDB1 expedite lipopolysaccharide-induced intestinal inflammation in mice by inducing IRF7/NLR-dependent macrophage M1 polarization. Int Immunopharmacol 2023; 115:109554. [PMID: 36580757 DOI: 10.1016/j.intimp.2022.109554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 12/04/2022] [Accepted: 12/04/2022] [Indexed: 12/28/2022]
Abstract
Macrophages exhibit distinct phenotypes that are pro-inflammatory (M1) or anti-inflammatory (M2) in response to inflammation. In this study, we tried to identify the roles and mechanisms of interferon regulatory factor 7 (IRF7) in modulating the phenotypes of macrophages in lipopolysaccharide (LPS)-induced intestinal inflammation. The mouse model of intestinal inflammation was induced by lipopolysaccharide (LPS), and mouse bone marrow-derived macrophages (BMDMs) and mouse intestinal epithelial cells were selected for experimental verification in vitro. Results demonstrated that IRF7 was highly expressed in the mouse model of intestinal inflammation, while IRF7 deficiency repressed macrophage M1 polarization and attenuated intestinal inflammation in mice. p65 and SET domain bifurcated 1 (SETDB1) synergistically promoted histone 3 lysine 4 trimethylation (H3K4me3) methylation to elevate IRF7 expression, which activated the Nod-like receptor (NLR) pathway to induce macrophage M1 polarization. Through this mechanism, IRF7 in BMDMs functioned to accelerate intestinal epithelial cell apoptosis and their release of pro-inflammatory proteins. Furthermore, the promoting effect of p65 and SETDB1 on LPS-induced intestinal inflammation was validated in vivo. To sum up, NF-κB p65 and SETDB1 facilitated IRF7-mediated macrophage M1 polarization, thereby aggravating the LPS-induced intestinal inflammation. Hence, this study highlights the appealing value of these factors as anti-inflammatory targets.
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Affiliation(s)
- Li Chen
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China
| | - Maolin Dai
- Department of Anesthesia, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China
| | - Wei Zuo
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China
| | - Yongyu Dai
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China
| | - Qiqi Yang
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China
| | - Shuangjiang Yu
- Department of Neurosurgery, The First Hospital Affiliated to Army Military Medical University (Southwest Hospital), Chongqing 400038, PR China
| | - Min Huang
- Department of Digestion, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, PR China
| | - Hao Liu
- Department of Digestion, Rongchang District People's Hospital of Chongqing, Chongqing 402468, PR China.
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Xia H, Gao M, Chen J, Huang G, Xiang X, Wang Y, Huang Z, Li Y, Su S, Zhao Z, Zeng Q, Ruan Y. M1 macrophage-derived extracellular vesicle containing tsRNA-5006c promotes osteogenic differentiation of aortic valve interstitial cells through regulating mitophagy. PeerJ 2022; 10:e14307. [PMID: 36518291 PMCID: PMC9744173 DOI: 10.7717/peerj.14307] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/05/2022] [Indexed: 12/03/2022] Open
Abstract
Background Osteogenic differentiation of aortic valve interstitial cells (AVICs) plays a key role in the calcific aortic valve disease progression. Extracellular vesicles (EVs)-derived from M1-polarized macrophages (M1-EVs) orchestrated intercellular communication by delivering non-coding RNAs such as tRNA-derived small RNAs (tsRNAs) is crucial for cardiovascular disease. However, the role and mechanism of M1-EVs tsRNAs in osteogenic differentiation of AVICs remains largely unclear. Methods M1-EVs and PBS treated-RAW 264.7 cell-derived EVs (NC-EVs) were incubated with AVICs and subjected to small RNA sequencing. Candidate tsRNA in M1-EVs was silenced to explore their effects on AVIC osteogenic differentiation and mitophagy. Results DiI-labeled M1-EVs were internalized by AVICs, resulting in significantly increased calcium nodule formation and expression of osteogenesis-related genes in AVICs, including RUNX2, BMP2, osteopontin, and SPP1, compared with NC-EVs. Small RNA sequencing revealed that 17 tsRNAs were significantly up-regulated such as tsRNA-5006c, while 28 tsRNAs were significantly down-regulated in M1-EVs compared with NC-EVs. Intriguingly, tsRNA-5006c-deleted M1-EVs treatment significantly reduced calcium nodule formation and expression of osteogenesis-related genes in AVICs relative to control group. Moreover, target genes of tsRNA-5006c were mainly involved in autophagy-related signaling pathways, such as MAPK, Ras, Wnt, and Hippo signaling pathway. Hallmarks of mitophagy activation in AVICs including mitophagosome formation, TMRM fluorescence, expression of LC3-II, BINP3, and PGC1α, were significantly elevated in the M1-EVs group compared with NC-EVs group, whereas M1-EVs tsRNA-5006c inhibitor led to a significant reduction in these indicators. Conclusion M1-EVs carried tsRNA-5006c regulates AVIC osteogenic differentiation from the perspective of mitophagy, and we provide a new target for the prevention and treatment of aortic valve calcification.
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Affiliation(s)
- Hao Xia
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Mingjian Gao
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jun Chen
- Department of Cardiology, Southern University of Science and Technology Hospital, Shenzhen, Guangdong, China
| | - Guanshen Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiuting Xiang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuyan Wang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhaohui Huang
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yongchun Li
- Department of traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shuang Su
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zewei Zhao
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qingchun Zeng
- Department of Cardiology, Southern University of Science and Technology Hospital, Shenzhen, Guangdong, China
| | - Yunjun Ruan
- Department of Geriatrics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Sun S, Wu Y, Maimaitijiang A, Huang Q, Chen Q. Ferroptotic cardiomyocyte-derived exosomes promote cardiac macrophage M1 polarization during myocardial infarction. PeerJ 2022; 10:e13717. [PMID: 35818358 PMCID: PMC9270880 DOI: 10.7717/peerj.13717] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/21/2022] [Indexed: 01/17/2023] Open
Abstract
Ferroptosis is a mode of cell death that occurs in myocardial infarction (MI). Signals emanating from apoptotic cells are able to induce macrophage polarization through exosome-loading cargos, which plays a vital role in the process of disease. However, whether ferroptotic cardiomyocytes derived exosome (MI-Exo) during MI act on macrophage polarization and its mechanism remain unclear. In this study, a MI mouse model was established, and cardiac function evaluation and pathological staining were performed. The effect of MI-Exo on polarization of RAW264.7 cells was assessed by the expression of IL-10 and NOS2. Ferroptosis inhibitor of ferrostatin-1 was used to verify whether MI-Exo function was dependents on ferroptosis. Cardiac function and myocardial histomorphology were markedly impaired and massive immune cell infiltration in MI mice, compared with the sham group. The significantly increased MDA content and Fe2+ accumulation in the heart tissue of MI mice suggested cardiomyocyte ferroptosis. Compared with the sham group, the expression of M1 marker NOS2 was significantly up-regulated and M2 marker IL-10 was significantly down-regulated in the heart tissue of MI mice. Exosome-derived from MI HL-1 cell-treated with ferrostatin-1 (Fer-1-Exo) and MI-Exo were internalized by RAW 264.7 cells. Compared with culture alone, co-cultured with MI-Exo significantly promoted NOS2 expression and suppressed IL-10 expression, and decreased proportion of Arginase-1-labeled M2 macrophages, also inhibited phagocytosis of RAW 264.7 cells. Wnt1 and β-cantenin expression also elevated after treated with MI-Exo. However, co-cultured with Fer-1-Exo significantly reversed the above changes on RAW 264.7 cells induced by MI-Exo. In conclusion, ferroptotic cardiomyocytes-derived exosome crosstalk macrophage to induce M1 polarization via Wnt/β-cantenin pathway, resulting in pathological progress in MI. This understanding provides novel therapeutic target for MI.
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Affiliation(s)
- Shengjia Sun
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yurong Wu
- Nursing Department, Huashan Hospital, Fudan University, Shanghai, China
| | | | - Qingyu Huang
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Qiying Chen
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai, China
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Liu J, Sun Q, Sun M, Lin L, Ren X, Li T, Xu Q, Sun Z, Duan J. Melatonin alleviates PM 2.5-triggered macrophage M1 polarization and atherosclerosis via regulating NOX2-mediated oxidative stress homeostasis. Free Radic Biol Med 2022; 181:166-179. [PMID: 35149217 DOI: 10.1016/j.freeradbiomed.2022.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 12/20/2022]
Abstract
It is reported that oxidative stress homeostasis was involved in PM2.5-induced foam cell formation and progression of atherosclerosis, but the exact molecular mechanism is still unclear. Melatonin is an effective antioxidant that could reverse the cardiopulmonary injury. The main purpose of this study is to investigate the latent mechanism of PM2.5-triggered atherosclerosis development and the protective role of melatonin administration. Vascular Doppler ultrasound showed that PM2.5 exposure reduced aortic elasticity in ApoE-/- mice. Meanwhile, blood biochemical and pathological analysis demonstrated that PM2.5 exposure caused dyslipidemia, elicited oxidative damage of aorta and was accompanied by an increase in atherosclerotic plaque area; while the melatonin administration could effectively alleviate PM2.5-induced macrophage M1 polarization and atherosclerosis in mice. Further investigation verified that NADPH oxidase 2 (NOX2) and mitochondria are two prominent sources of PM2.5-induced ROS production in vascular macrophages. Whereas, the combined use of two ROS-specific inhibitors and adopted with melatonin markedly rescued PM2.5-triggered macrophage M1 polarization and foam cell formation by inhibiting NOX2-mediated crosstalk of Keap1/Nrf2/NF-κB and TLR4/TRAF6/NF-κB signaling pathways. Our results demonstrated that NOX2-mediated oxidative stress homeostasis is critical for PM2.5-induced atherosclerosis and melatonin might be a potential treatment for air pollution-related cardiovascular diseases.
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Affiliation(s)
- Jiangyan Liu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Qinglin Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Mengqi Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Lisen Lin
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Xiaoke Ren
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Tianyu Li
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Qing Xu
- Core Facilities for Electrophysiology, Core Facilities Center, Capital Medical University, Beijing, 100069, PR China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China
| | - Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069, PR China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069, PR China.
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Tang M, Cai J, Wang Y, Huan Z, Yao H, Xu C, Ge X, Song S. Tyrosine kinase nonreceptor 1 (TNK1) knockdown ameliorates hemorrhage shock-induced kidney injury via inhibiting macrophage M1 polarization. 3 Biotech 2021; 11:501. [PMID: 34881164 DOI: 10.1007/s13205-021-03042-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/29/2021] [Indexed: 12/20/2022] Open
Abstract
Hemorrhage shock (HS) is a major threat to patients with trauma and spontaneous bleeding, resulting in multi-organ failure including the kidney. Tyrosine kinase nonreceptor 1 (TNK1) has been shown to be upregulated in the kidney of experimental HS and patients with severe trauma. The study aims to investigate the role of TNK1 and the underlying mechanism in HS-induced kidney injury. A model of HS was established with femoral artery bloodletting, followed by resuscitation in Sprague-Dawley rats. Renal expression of TNK1 was abnormally induced by HS in rats. Knockdown of TNK1 alleviated HS-induced cell apoptosis and the level of proinflammatory cytokines (TNF-α, IL-6 and IL-1β) in the kidney. The expression of M1 macrophage markers (CD86 and iNOS) and the activation of STAT1 were inhibited by TNK1 knockdown in HS rats. In vitro, human monocyte THP-1 cells were treated with 20 ng/mL interferon-gamma plus 100 ng/mL lipopolysaccharide to induce M1 polarization. TNK1 knockdown exerted inhibitory effect on macrophage M1 polarization, M1-type inflammatory cytokine production and STAT1 activation in THP-1 cells. In conclusion, downregulation of TNK1 alleviates HS-induced kidney injury by suppressing macrophage M1 polarization, inflammation and kidney cell apoptosis, in which the deactivation of STAT1 signaling may be involved.
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