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Liu K, Li Y, Yin F, Wu X, Zhang X, Jiang D, Wang J, Zhang Z, Wang R, Chen C, Han Y. Elucidating thoracic aortic dissection pathogenesis: The interplay of m1A-related gene expressions and miR-16-5p/YTHDC1 Axis in NLRP3-dependent pyroptosis. Int J Biol Macromol 2024; 274:133293. [PMID: 38925173 DOI: 10.1016/j.ijbiomac.2024.133293] [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: 01/21/2024] [Revised: 05/23/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024]
Abstract
The underlying molecular mechanisms of thoracic aortic dissection (TAD) remain incompletely understood. Recent insights into RNA methylation and microRNA-mediated gene regulation offer new avenues for exploring how these processes contribute to the pathophysiology of TAD, particularly through the modulation of pyroptosis and smooth muscle cell viability. This research aimed to elucidate the interplay of m1A-related gene expressions and miR-16-5p/YTHDC1 Axis in NLRP3-dependent pyroptosis, a mechanism implicated in the pathogenesis of TAD. We collected tissue samples from 28 human TAD patients and 8 healthy aortic group, as well as utilized a mouse model to replicate the disease. A combination of computational, in vitro, and in vivo methods was applied, including CIBERSORTx analysis, Pearson correlation, gene transfection using antagomiR-16-5p, siRNA, and several staining as well as cell culture techniques. Our analysis indicated two differentially expressed genes, ALKBH2 and YTHDC1. We found significant upregulation of has-miR-16-5p and downregulation of YTHDC1 at mRNA level in AD samples. Immune cell infiltration in TAD samples was examined using the CIBERSORTx database. We confirmed that YTHDC1 was a target of miR-16-5p, as evidenced by an inhibitory effect on luciferase activity. Inhibition of miR-16-5p enhanced SMC proliferation and promoted cell viability whilst downregulating NLRP3-pyroptosis. YTHDC1 expression was increased, and NLRP3-pyroptosis expressions were inhibited, suggesting miR-16-5p/YTHDC1 axis may involve the NLRP3-pyroptosis of the SMC. In vivo analyses confirmed the prevention of NLRP3-pyroptosis in middle layer of the thoracic aorta, implying that the miR-16-5p/YTHDC1 axis regulated SMC proliferation via NLRP3-pyroptosis signaling. Our findings underscored the anti-pyroptotic role of miR-16-5p/YTHDC1 axis in the pathogenesis of TAD, suggesting a potential therapeutic strategy via targeting YTHDC1 and suppressing miR-16-5p to inhibit NLRP3-dependent pyroptosis. Although further investigation is needed, these results relating to SMC proliferation are a significant step forward in understanding TAD.
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Affiliation(s)
- Kun Liu
- Department of Cardiac Surgery, Affiliated Hospital, Guizhou Medical University, Guiyang, China
| | - Yuemeng Li
- Department of Vascular Surgery, Central Hospital of Dalian University of Technology, Dalian, China
| | - Fanxing Yin
- School of Life and Pharmaceutical Science, Dalian University of Technology, Panjin, China
| | - Xiaoyu Wu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoxu Zhang
- School of Life and Pharmaceutical Science, Dalian University of Technology, Panjin, China
| | - Deying Jiang
- Department of Vascular Surgery, Central Hospital of Dalian University of Technology, Dalian, China
| | - Jian Wang
- School of Life and Pharmaceutical Science, Dalian University of Technology, Panjin, China
| | - Zhaoxuan Zhang
- School of Life and Pharmaceutical Science, Dalian University of Technology, Panjin, China
| | - Ruihua Wang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, Brisbane, QLD, Australia
| | - Yanshuo Han
- Department of Vascular Surgery, Central Hospital of Dalian University of Technology, Dalian, China; School of Life and Pharmaceutical Science, Dalian University of Technology, Panjin, China.
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Chen F, Liu J, Liu K, Tian L, Li X, Zhu X, Chen X, Zhang X. Osteo-immunomodulatory effects of macrophage-derived extracellular vesicles treated with biphasic calcium phosphate ceramics on bone regeneration. Biomed Mater 2024; 19:045025. [PMID: 38815599 DOI: 10.1088/1748-605x/ad5242] [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: 01/31/2024] [Accepted: 05/30/2024] [Indexed: 06/01/2024]
Abstract
Literature on osteoimmunology has demonstrated that macrophages have a great influence on biomaterial-induced bone formation. However, there are almost no reports clarifying the osteo-immunomodulatory capacity of macrophage-derived extracellular vesicles (EVs). This study comprehensively investigated the effects of EVs derived from macrophages treated with biphasic calcium phosphate (BCP) ceramics (BEVs) on vital events associated with BCP-induced bone formation such as immune response, angiogenesis, and osteogenesis. It was found that compared with EVs derived from macrophages alone (control, CEVs), BEVs preferentially promoted macrophage polarization towards a wound-healing M2 phenotype, enhanced migration, angiogenic differentiation, and tube formation of human umbilical vein endothelial cells, and induced osteogenic differentiation of mesenchymal stem cells. Analysis of 15 differentially expressed microRNAs (DEMs) related to immune, angiogenesis, and osteogenesis suggested that BEVs exhibited good immunomodulatory, pro-angiogenic, and pro-osteogenic abilities, which might be attributed to their specific miRNA cargos. These findings not only deepen our understanding of biomaterial-mediated osteoinduction, but also suggest that EVs derived from biomaterial-treated macrophages hold great promise as therapeutic agents with desired immunomodulatory capacity for bone regeneration.
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Affiliation(s)
- Fuying Chen
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Jiajun Liu
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Keting Liu
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Luoqiang Tian
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Department of Biomedical Engineering, Sichuan University, Chengdu, People's Republic of China
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Zhang J, Gu L, Jiang Y, Ma Y, Zhang Z, Shen S, Shen S, Peng Q, Xiao W. Artesunate-Nanoliposome-TPP, a Novel Drug Delivery System That Targets the Mitochondria, Attenuates Cisplatin-Induced Acute Kidney Injury by Suppressing Oxidative Stress and Inflammatory Effects. Int J Nanomedicine 2024; 19:1385-1408. [PMID: 38371457 PMCID: PMC10871145 DOI: 10.2147/ijn.s444076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/25/2024] [Indexed: 02/20/2024] Open
Abstract
Background Acute kidney injury (AKI) is a syndrome, posing a substantial healthcare burden. The pathological basis of AKI is associated with inflammation and oxidative stress which cause additional damage to mitochondria. Artesunate (ATS) is a derivative of artemisinin isolated from Artemisia annua L. that is an effective treatment for malaria and favored for the prevention and treatment of kidney diseases. However, there are still challenges related to its efficacy, including poor water solubility, limited oral bioavailability and short half-life. Liposome-based nanoparticles are used for drug delivery due to their ideal biocompatibility and their ability to improve the bioavailability of specific drugs and enhance drug efficacy. Methods In this study, a novel TPP-based natural ATS-nanoliposome, namely T-A-Ls, was applied for the treatment of AKI. ATS was encapsulated with or without triphenylphosphonium (TPP)-modified nanoliposomes. AKI was induced by cisplatin in C57BL/6J mice and a cisplatin-induced injury model was generated in HK-2 cells in vitro. Blood urea nitrogen (BUN), serum creatinine (Scr) measurements and section staining were utilized to assess renal protective effect of T-A-Ls. Inflammatory-related factors and proteins were quantified via Elisa, Immunofluorescence and Western Blot (WB). The anti-mitochondrial oxidative stress effect of T-A-Ls was determined by ROS, JC-1 and oxygen consumption rate (OCR) kits. Immunohistochemistry and WB were conducted to measure associated protein expressions. In vivo biodistribution and the concentration of T-A-Ls in kidney were also explored. Results T-A-Ls exhibited good oxidative resistance, preferential renal uptake, mitochondrial targeting, and it ameliorated kidney injury in cisplatin-induced AKI mice. Mitochondrial dysfunction, ATP production and respiratory capacity were improved in damaged HK-2 cells; ROS content decreased while mitochondrial membrane potential recovered. T-A-Ls exerted renal protection by inhibiting inflammation and reducing oxidative stress; these effects were mediated by a downregulation in the expression of RAGE and iNOS and an upregulation in both Nrf2 and HO-1. Conclusion T-A-Ls could improve the delivery of ATS to the kidney, offering a promising avenue to treat AKI.
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Affiliation(s)
- Jiaxing Zhang
- Institute of Digestive Disease, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People’s Hospital, Qingyuan, Guang Dong, People’s Republic of China
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guang Dong, People’s Republic of China
| | - Liwei Gu
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Yumao Jiang
- Gannan Medical University, Ganzhou, Jiang Xi, People’s Republic of China
| | - Yun Ma
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, Guang Dong, People’s Republic of China
| | - Ziyue Zhang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Shengnan Shen
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Shuo Shen
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Qing Peng
- Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, People’s Republic of China
| | - Wei Xiao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guang Dong, People’s Republic of China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
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Artesunate Alleviates Hyperoxia-Induced Lung Injury in Neonatal Mice by Inhibiting NLRP3 Inflammasome Activation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023; 2023:7603943. [PMID: 36785753 PMCID: PMC9922194 DOI: 10.1155/2023/7603943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/25/2022] [Accepted: 11/24/2022] [Indexed: 02/06/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease in preterm infants that may cause persistent lung injury. Artesunate exhibits excellent anti-inflammatory in lung injury caused by various factors. This study aimed to investigate the effect of the artesunate on hyperoxia-induced lung injury in neonatal mice and its mechanism. A BPD model of hyperoxic lung injury in neonatal mice was established after hyperoxia (75% oxygen) exposure for 14 days, and part of the mice received intraperitoneal injections of the artesunate. H&E staining was used to observe the pathology of lung tissue, and the degree of oxidative stress in the lung tissue was determined by commercial kits. The levels of inflammatory cytokines in the serum and lung tissues of neonatal mice were detected by an enzyme-linked immunosorbent assay. Immunohistochemical experiments were performed to further evaluate the expression of IL-1β. The real-time quantitative polymerase chain reaction was used to determine the mRNA level of the NLRP3 inflammasome. The western blot assay was used to measure the levels of NLRP3 inflammasome and NF-κB pathway-related proteins. Artesunate ameliorated weight loss and lung tissue injury in neonatal mice induced by hyperoxia. The level of malondialdehyde was decreased, while the activity of superoxide dismutase and the level of glutathione increased after artesunate treatment. Artesunate reduced the level of inflammation cytokines TNF-α, IL-6, and IL-1β in the serum and lung. Moreover, artesunate inhibited the mRNA expression and protein levels of NLRP3, ASC, and caspase-1, as well as the phosphorylation of the NF-κB and IκBα. Our findings suggest that artesunate treatment can attenuate hyperoxia-induced lung injury in BPD neonatal mice by inhibiting the activation of NLRP3 inflammasome and the phosphorylation of the NF-κB pathway.
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Srivastava S, Garg I, Singh Y, Meena R, Ghosh N, Kumari B, Kumar V, Eslavath MR, Singh S, Dogra V, Bargotya M, Bhattar S, Gupta U, Jain S, Hussain J, Varshney R, Ganju L. Evaluation of altered miRNA expression pattern to predict COVID-19 severity. Heliyon 2023; 9:e13388. [PMID: 36743852 PMCID: PMC9889280 DOI: 10.1016/j.heliyon.2023.e13388] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 01/20/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Outbreak of COVID-19 pandemic in December 2019 affected millions of people globally. After substantial research, several biomarkers for COVID-19 have been validated however no specific and reliable biomarker for the prognosis of patients with COVID-19 infection exists. Present study was designed to identify specific biomarkers to predict COVID-19 severity and tool for formulating treatment. A small cohort of subjects (n = 43) were enrolled and categorized in four study groups; Dead (n = 16), Severe (n = 10) and Moderate (n = 7) patients and healthy controls (n = 10). Small RNA sequencing was done on Illumina platform after isolation of microRNA from peripheral blood. Differential expression (DE) of miRNA (patients groups compared to control) revealed 118 down-regulated and 103 up-regulated known miRNAs with fold change (FC) expression ≥2 folds and p ≤ 0.05. DE miRNAs were then subjected to functional enrichment and network analysis. Bioinformatic analysis resulted in 31 miRNAs (24 Down-regulated; 7 up-regulated) significantly associated with COVID-19 having AUC>0.8 obtained from ROC curve. Seventeen out of 31 DE miRNAs have been linked to COVID-19 in previous studies. Three miRNAs, hsa-miR-147b-5p and hsa-miR-107 (down-regulated) and hsa-miR-1299 (up-regulated) showed significant unique DE in Dead patients. Another set of 4 miRNAs, hsa-miR-224-5p (down-regulated) and hsa-miR-4659b-3p, hsa-miR-495-3p and hsa-miR-335-3p were differentially up-regulated uniquely in Severe patients. Members of three miRNA families, hsa-miR-20, hsa-miR-32 and hsa-miR-548 were significantly down-regulated in all patients group in comparison to healthy controls. Thus a distinct miRNA expression profile was observed in Dead, Severe and Moderate COVID-19 patients. Present study suggests a panel of miRNAs which identified in COVID-19 patients and could be utilized as potential diagnostic biomarkers for predicting COVID-19 severity.
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Affiliation(s)
- Swati Srivastava
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India,Corresponding author
| | - Iti Garg
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India,Corresponding author
| | - Yamini Singh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Ramesh Meena
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Nilanjana Ghosh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Babita Kumari
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Vinay Kumar
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Malleswara Rao Eslavath
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Sayar Singh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Vikas Dogra
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Mona Bargotya
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Sonali Bhattar
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Utkarsh Gupta
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Shruti Jain
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Javid Hussain
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Rajeev Varshney
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Lilly Ganju
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
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Zhou P, Ma YY, Zhao XN, Hua F. Phytochemicals as potential target on thioredoxin-interacting protein (TXNIP) for the treatment of cardiovascular diseases. Inflammopharmacology 2023; 31:207-220. [PMID: 36609715 DOI: 10.1007/s10787-022-01130-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/27/2022] [Indexed: 01/09/2023]
Abstract
Cardiovascular diseases (CVDs) are currently the major cause of death and morbidity on a global scale. Thioredoxin-interacting protein (TXNIP) is a marker related to metabolism, oxidation, and inflammation induced in CVDs. The overexpression of TXNIP is closely related to the occurrence and development of CVDs. Hence, TXNIP inhibition is critical for reducing the overactivation of its downstream signaling pathway and, as a result, myocardial cell damage. Due to the chemical variety of dietary phytochemicals, they have garnered increased interest for CVDs prevention and therapy. Phytochemicals are a source of medicinal compounds for a variety of conditions, which aids in the development of effective and safe TXNIP-targeting medications. The objective of this article is to find and virtual screen novel safe, effective, and economically viable TXNIP inhibitors from flavonoids, phenols, and alkaloids derived from foods and plants. The results of the docking study revealed that silibinin, rutin, luteolin, baicalin, procyanidin B2, hesperetin, icariin, and tilianin in flavonoids, polydatin, resveratrol, and salidroside in phenols, and neferine in alkaloids had the highest Vina scores, indicating that these compounds are the active chemicals on TXNIP. In particular, silibinin can be utilized as a lead chemical in the process of structural alteration. These dietary phytochemicals may aid in the discovery of lead compounds for the development of innovative TXNIP agents for the treatment of cardiovascular disease.
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Affiliation(s)
- Peng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, People's Republic of China
| | - Yao-Yao Ma
- Department of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, People's Republic of China
| | - Xiao-Ni Zhao
- Department of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, People's Republic of China
| | - Fang Hua
- School of Pharmacy, Anhui Xinhua University, Hefei, Anhui, People's Republic of China.
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NLRP3 Inflammasome in Atherosclerosis: Putting Out the Fire of Inflammation. Inflammation 2023; 46:35-46. [PMID: 35953687 DOI: 10.1007/s10753-022-01725-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/25/2022] [Accepted: 07/29/2022] [Indexed: 11/05/2022]
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease with thickening or hardening of the arteries, which led to the built-up of plaques in the inner lining of an artery. Among all the clarified pathogenesis, the over-activation of inflammatory reaction is one of the most acknowledged one. The nucleotide-binding domain leucine-rich repeat (NLR) and pyrin domain containing receptor 3 (NLRP3) inflammasome, as a vital and special form of inflammation and innate immunity, has been widely revealed to participate in the onset and development of AS. This review will introduce the process of the pathogenesis and progression of AS, and will describe the biological features of the NLRP3 inflammasome. Furthermore, the role of the NLRP3 inflammasome in AS and the possible mechanisms will be discussed. In addition, several kinds of agents with the effect of anti-atherosclerotic taking advantage of the NLRP3 inflammasome intervention will be described and discussed in detail, including natural compounds (baicalin, dihydromyricetin, luteolin, 5-deoxy-rutaecarpine (R3) and Salvianolic acid A, etc.), microRNAs (microRNA-30c-5p, microRNA-9, microRNA-146a-5p, microRNA-16-5p and microRNA-181a, etc.), and autophagy regulators (melatonin, dietary PUFA and arglabin, etc.). We aim to provide novel insights in the exploration of the specific mechanisms of AS and the development of new treatments of AS.
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Zou D, Yang P, Liu J, Dai F, Xiao Y, Zhao A, Huang N. Exosome-Loaded Pro-efferocytic Vascular Stent with Lp-PLA 2-Triggered Release for Preventing In-Stent Restenosis. ACS NANO 2022; 16:14925-14941. [PMID: 36066255 DOI: 10.1021/acsnano.2c05847] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The efferocytosis defect is regarded as a pivotal event of atherosclerosis. The failure to clear apoptotic cells in atherosclerotic plaques under vascular stents causes a failure to resolve the inflammation underneath. However, efferocytosis repair is still confined to nonstenting therapeutics. Here, we identified a pro-efferocytotic agent and accordingly developed a bioresponsive pro-efferocytotic vascular stent aimed for poststenting healing. Exosomes derived from mesenchymal stem cells were found to be able to regulate efferocytosis via SLC2a1, STAT3/RAC1, and CD300a pathways and modulate foam cell formation processes through a CD36-mediated pathway. Pro-efferocytotic exosomes were encapsulated into liposome-based multivesicular chambers and grafted onto vascular stents. The multivesicular vesicles were able to release exosomes under the Lp-PLA2 environment. Compared to bare metal stents, exosome-stents in the presence of Lp-PLA2 enhanced the ratio of apoptotic cell clearance and reduced the neointimal thickness in the mal-efferocytotic rat model. Overall, we identified a pro-efferocytic agent─exosomes that are able to regulate target cells via multiple signaling pathways and are good candidates to serve complex pathological environments, and this bioresponsive pro-efferocytotic vascular stent is an attractive approach for prevention of poststenting complications.
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Affiliation(s)
- Dan Zou
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Ping Yang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Jianan Liu
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Fanfan Dai
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Yangyang Xiao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Ansha Zhao
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
| | - Nan Huang
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P.R. China
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