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Zhu Q, Yuan C, Wang D, Tu B, Chen W, Dong X, Wu K, Tao L, Ding Y, Xiao W, Hu L, Gong W, Li Z, Lu G. The TRIM28/miR133a/CD47 axis acts as a potential therapeutic target in pancreatic necrosis by impairing efferocytosis. Mol Ther 2024; 32:3025-3041. [PMID: 38872307 DOI: 10.1016/j.ymthe.2024.06.005] [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: 07/15/2023] [Revised: 04/05/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024] Open
Abstract
Efferocytosis, the clearance of apoptotic cells by macrophages, plays a crucial role in inflammatory responses and effectively prevents secondary necrosis. However, the mechanisms underlying efferocytosis in acute pancreatitis (AP) remain unclear. In this study, we demonstrated the presence of efferocytosis in injured human and mouse pancreatic tissues. We also observed significant upregulation of CD47, an efferocytosis-related the "do not eat me" molecule in injured acinar cells. Subsequently, we used CRISPR-Cas9 gene editing, anti-adeno-associated virus (AAV) gene modification, and anti-CD47 antibody to investigate the potential therapeutic role of AP. CD47 expression was negatively regulated by upstream miR133a, which is controlled by the transcription factor TRIM28. To further investigate the regulation of efferocytosis and reduction of pancreatic necrosis in AP, we used miR-133a-agomir and pancreas-specific AAV-shTRIM28 to modulate CD47 expression. Our findings confirmed that CD47-mediated efferocytosis is critical for preventing pancreatic necrosis and suggest that targeting the TRIM28-miR133a-CD47 axis is clinically relevant for the treatment of AP.
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Affiliation(s)
- Qingtian Zhu
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Chenchen Yuan
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Dan Wang
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Bo Tu
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Weiwei Chen
- Department of Gastroenterology, Clinical Medical College, Yangzhou University, Yangzhou 225000, China
| | - Xiaowu Dong
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Keyan Wu
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Lide Tao
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Yanbing Ding
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Weiming Xiao
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China
| | - Lianghao Hu
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China.
| | - Weijuan Gong
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China.
| | - Zhaoshen Li
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China.
| | - Guotao Lu
- Pancreatic Center, Department of Gastroenterology, Yangzhou Key Laboratory of Pancreatic Disease, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou 225000, China.
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Liao YS, Zhang TC, Tang YQ, Yu P, Liu YN, Yuan J, Zhao L. Electroacupuncture reduces inflammatory damage following cerebral ischemia-reperfusion by enhancing ABCA1-mediated efferocytosis in M2 microglia. Mol Brain 2024; 17:61. [PMID: 39223647 PMCID: PMC11367741 DOI: 10.1186/s13041-024-01135-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 08/16/2024] [Indexed: 09/04/2024] Open
Abstract
Ischemic stroke (IS) is a severe cerebrovascular disease with high disability and mortality rates, where the inflammatory response is crucial to its progression and prognosis. Efferocytosis, the prompt removal of dead cells, can reduce excessive inflammation after IS injury. While electroacupuncture (EA) has been shown to decrease inflammation post-ischemia/reperfusion (I/R), its link to efferocytosis is unclear. Our research identified ATP-binding cassette transporter A1 (Abca1) as a key regulator of the engulfment process of efferocytosis after IS by analyzing public datasets and validating findings in a mouse model, revealing its close ties to IS progression. We demonstrated that EA can reduce neuronal cell death and excessive inflammation caused by I/R. Furthermore, EA treatment increased Abca1 expression, prevented microglia activation, promoted M2 microglia polarization, and enhanced their ability to phagocytose injured neurons in I/R mice. This suggests that EA's modulation of efferocytosis could be a potential mechanism for reducing cerebral I/R injury, making regulators of efferocytosis steps a promising therapeutic target for EA benefits.
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Affiliation(s)
- Yu-Sha Liao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Tie-Chun Zhang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Yu-Qi Tang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Pei Yu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Ya-Ning Liu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Jing Yuan
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China.
- Key Laboratory of Acupuncture for Senile Disease (Chengdu University of TCM), Ministry of Education, Chengdu, 611137, Sichuan, China.
| | - Ling Zhao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China.
- Key Laboratory of Acupuncture for Senile Disease (Chengdu University of TCM), Ministry of Education, Chengdu, 611137, Sichuan, China.
- Clinical Research Center for Acupuncture and Moxibustion in Sichuan Province, Chengdu, 610075, China.
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Lysakova EV, Shumeev AN, Chuvpilo SA, Laktyushkin VS, Arsentieva NA, Bobrov MY, Rybtsov SA. Quantitative Analysis of Phagocytosis in Whole Blood Using Double Staining and Visualization. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:923-932. [PMID: 38880652 DOI: 10.1134/s0006297924050122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/09/2024] [Accepted: 02/19/2024] [Indexed: 06/18/2024]
Abstract
Phagocytosis is an essential innate immunity function in humans and animals. A decrease in the ability to phagocytize is associated with many diseases and aging of the immune system. Assessment of phagocytosis dynamics requires quantification of bacteria inside and outside the phagocyte. Although flow cytometry is the most common method for assessing phagocytosis, it does not include visualization and direct quantification of location of bacteria. Here, we used double-labeled Escherichia coli cells to evaluate phagocytosis by flow cytometry (cell sorting) and confocal microscopy, as well as employed image cytometry to provide high-throughput quantitative and spatial recognition of the double-labeled E. coli associated with the phagocytes. Retention of pathogens on the surface of myeloid and lymphoid cells without their internalization was suggested to be an auxiliary function of innate immunity in the fight against infections. The developed method of bacterial labeling significantly increased the accuracy of spatial and quantitative measurement of phagocytosis in whole blood and can be recommended as a tool for phagocytosis assessment by image cytometry.
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Affiliation(s)
- Elena V Lysakova
- Immunobiology and Biomedicine Division, Center for Genetics and Life Sciences, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia
| | - Alexander N Shumeev
- Resource Center for Cell Technologies and Immunology, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia
| | - Sergei A Chuvpilo
- Immunobiology and Biomedicine Division, Center for Genetics and Life Sciences, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia
| | - Viktor S Laktyushkin
- Resource Center for Cell Technologies and Immunology, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia
| | | | - Mikhail Yu Bobrov
- Immunobiology and Biomedicine Division, Center for Genetics and Life Sciences, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia
| | - Stanislav A Rybtsov
- Resource Center for Cell Technologies and Immunology, Sirius University of Science and Technology, Sirius, Krasnodar Region, 354340, Russia.
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Yuan J, Liao YS, Zhang TC, Tang YQ, Yu P, Liu YN, Cai DJ, Yu SG, Zhao L. Integrating Bulk RNA and Single-Cell Sequencing Data Unveils Efferocytosis Patterns and ceRNA Network in Ischemic Stroke. Transl Stroke Res 2024:10.1007/s12975-024-01255-8. [PMID: 38678526 DOI: 10.1007/s12975-024-01255-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/17/2024] [Accepted: 04/18/2024] [Indexed: 05/01/2024]
Abstract
Excessive inflammatory response following ischemic stroke (IS) injury is a key factor affecting the functional recovery of patients. The efferocytic clearance of apoptotic cells within ischemic brain tissue is a critical mechanism for mitigating inflammation, presenting a promising avenue for the treatment of ischemic stroke. However, the cellular and molecular mechanisms underlying efferocytosis in the brain after IS and its impact on brain injury and recovery are poorly understood. This study explored the roles of inflammation and efferocytosis in IS with bioinformatics. Three Gene Expression Omnibus Series (GSE) (GSE137482-3 m, GSE137482-18 m, and GSE30655) were obtained from NCBI (National Center for Biotechnology Information) and GEO (Gene Expression Omnibus). Differentially expressed genes (DEGs) were processed for GSEA (Gene Set Enrichment Analysis), GO (Gene Ontology Functional Enrichment Analysis), and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses. Efferocytosis-related genes were identified from the existing literature, following which the relationship between Differentially Expressed Genes (DEGs) and efferocytosis-related genes was examined. The single-cell dataset GSE174574 was employed to investigate the distinct expression profiles of efferocytosis-related genes. The identified hub genes were verified using the dataset of human brain and peripheral blood sample datasets GSE56267 and GSE122709. The dataset GSE215212 was used to predict competing endogenous RNA (ceRNA) network, and GSE231431 was applied to verify the expression of differential miRNAs. At last, the middle cerebral artery (MCAO) model was established to validate the efferocytosis process and the expression of hub genes. DEGs in two datasets were significantly enriched in pathways involved in inflammatory response and immunoregulation. Based on the least absolute shrinkage and selection operator (LASSO) analyses, we identified hub efferocytosis-related genes (Abca1, C1qc, Ptx3, Irf5, and Pros1) and key transcription factors (Stat5). The scRNA-seq analysis showed that these hub genes were mainly expressed in microglia and macrophages which are the main cells with efferocytosis function in the brain. We then identified miR-125b-5p as a therapeutic target of IS based on the ceRNA network. Finally, we validated the phagocytosis and clearance of dead cells by efferocytosis and the expression of hub gene Abca1 in MCAO mice models.
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Affiliation(s)
- Jing Yuan
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Yu-Sha Liao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Tie-Chun Zhang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Yu-Qi Tang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Pei Yu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Ya-Ning Liu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Ding-Jun Cai
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Shu-Guang Yu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Ling Zhao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan Province, China.
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5
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Xie XD, Dong SS, Liu RJ, Shi LL, Zhu T. Mechanism of Efferocytosis in Determining Ischaemic Stroke Resolution-Diving into Microglia/Macrophage Functions and Therapeutic Modality. Mol Neurobiol 2024:10.1007/s12035-024-04060-4. [PMID: 38409642 DOI: 10.1007/s12035-024-04060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/17/2024] [Indexed: 02/28/2024]
Abstract
After ischaemic cerebral vascular injury, efferocytosis-a process known as the efficient clearance of apoptotic cells (ACs) by various phagocytes in both physiological and pathological states-is crucial for maintaining central nervous system (CNS) homeostasis and regaining prognosis. The mechanisms of efferocytosis in ischaemic stroke and its influence on preventing inflammation progression from secondary injury were still not fully understood, despite the fact that the fundamental process of efferocytosis has been described in a series of phases, including AC recognition, phagocyte engulfment, and subsequent degradation. The genetic reprogramming of macrophages and brain-resident microglia after an ischaemic stroke has been equated by some researchers to that of the peripheral blood and brain. Based on previous studies, some molecules, such as signal transducer and activator of transcription 6 (STAT6), peroxisome proliferator-activated receptor γ (PPARG), CD300A, and sigma non-opioid intracellular receptor 1 (SIGMAR1), were discovered to be largely associated with aspects of apoptotic cell elimination and accompanying neuroinflammation, such as inflammatory cytokine release, phenotype transformation, and suppressing of antigen presentation. Exacerbated stroke outcomes are brought on by defective efferocytosis and improper modulation of pertinent signalling pathways in blood-borne macrophages and brain microglia, which also results in subsequent tissue inflammatory damage. This review focuses on recent researches which contain a number of recently discovered mechanisms, such as studies on the relationship between benign efferocytosis and the regulation of inflammation in ischaemic stroke, the roles of some risk factors in disease progression, and current immune approaches that aim to promote efferocytosis to treat some autoimmune diseases. Understanding these pathways provides insight into novel pathophysiological processes and fresh characteristics, which can be used to build cerebral ischaemia targeting techniques.
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Affiliation(s)
- Xiao-Di Xie
- Department of Pathophysiology, School of Basic Medicine, Institute of Neuroregeneration & Neurorehabilitation, Qingdao University, No. 308 Ningxia Road, Qingdao, China
| | - Shan-Shan Dong
- Department of Pathophysiology, School of Basic Medicine, Institute of Neuroregeneration & Neurorehabilitation, Qingdao University, No. 308 Ningxia Road, Qingdao, China
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ru-Juan Liu
- Department of Pathophysiology, School of Basic Medicine, Institute of Neuroregeneration & Neurorehabilitation, Qingdao University, No. 308 Ningxia Road, Qingdao, China
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Liu-Liu Shi
- Department of Pathophysiology, School of Basic Medicine, Institute of Neuroregeneration & Neurorehabilitation, Qingdao University, No. 308 Ningxia Road, Qingdao, China
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ting Zhu
- Department of Pathophysiology, School of Basic Medicine, Institute of Neuroregeneration & Neurorehabilitation, Qingdao University, No. 308 Ningxia Road, Qingdao, China.
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6
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Pan Q, Chen C, Yang YJ. Top Five Stories of the Cellular Landscape and Therapies of Atherosclerosis: Current Knowledge and Future Perspectives. Curr Med Sci 2024; 44:1-27. [PMID: 38057537 DOI: 10.1007/s11596-023-2818-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/22/2023] [Indexed: 12/08/2023]
Abstract
Atherosclerosis (AS) is characterized by impairment and apoptosis of endothelial cells, continuous systemic and focal inflammation and dysfunction of vascular smooth muscle cells, which is documented as the traditional cellular paradigm. However, the mechanisms appear much more complicated than we thought since a bulk of studies on efferocytosis, transdifferentiation and novel cell death forms such as ferroptosis, pyroptosis, and extracellular trap were reported. Discovery of novel pathological cellular landscapes provides a large number of therapeutic targets. On the other side, the unsatisfactory therapeutic effects of current treatment with lipid-lowering drugs as the cornerstone also restricts the efforts to reduce global AS burden. Stem cell- or nanoparticle-based strategies spurred a lot of attention due to the attractive therapeutic effects and minimized adverse effects. Given the complexity of pathological changes of AS, attempts to develop an almighty medicine based on single mechanisms could be theoretically challenging. In this review, the top stories in the cellular landscapes during the initiation and progression of AS and the therapies were summarized in an integrated perspective to facilitate efforts to develop a multi-targets strategy and fill the gap between mechanism research and clinical translation. The future challenges and improvements were also discussed.
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Affiliation(s)
- Qi Pan
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China
| | - Cheng Chen
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China
| | - Yue-Jin Yang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China.
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7
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Garcia-Bonilla L, Shahanoor Z, Sciortino R, Nazarzoda O, Racchumi G, Iadecola C, Anrather J. Analysis of brain and blood single-cell transcriptomics in acute and subacute phases after experimental stroke. Nat Immunol 2024; 25:357-370. [PMID: 38177281 DOI: 10.1038/s41590-023-01711-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 11/13/2023] [Indexed: 01/06/2024]
Abstract
Cerebral ischemia triggers a powerful inflammatory reaction involving peripheral leukocytes and brain resident cells that contribute to both tissue injury and repair. However, their dynamics and diversity remain poorly understood. To address these limitations, we performed a single-cell transcriptomic study of brain and blood cells 2 or 14 days after ischemic stroke in mice. We observed a strong divergence of post-ischemic microglia, monocyte-derived macrophages and neutrophils over time, while endothelial cells and brain-associated macrophages showed altered transcriptomic signatures at 2 days poststroke. Trajectory inference predicted the in situ trans-differentiation of macrophages from blood monocytes into day 2 and day 14 phenotypes, while neutrophils were projected to be continuously de novo recruited from the blood. Brain single-cell transcriptomes from both female and male aged mice were similar to that of young male mice, but aged and young brains differed in their immune cell composition. Although blood leukocyte analysis also revealed altered transcriptomes after stroke, brain-infiltrating leukocytes displayed higher transcriptomic divergence than their circulating counterparts, indicating that phenotypic diversification occurs within the brain in the early and recovery phases of ischemic stroke. A portal ( https://anratherlab.shinyapps.io/strokevis/ ) is provided to allow user-friendly access to our data.
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Affiliation(s)
- Lidia Garcia-Bonilla
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
| | - Ziasmin Shahanoor
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Rose Sciortino
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Omina Nazarzoda
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Gianfranco Racchumi
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Costantino Iadecola
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Josef Anrather
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
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8
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Koizumi H, Nakahashi-Oda C, Lyu W, Yamashita-Kanemaru Y, Tabuchi K, Shibuya K, Shibuya A. Development of Monoclonal Antibodies Specific to Either CD300A R111 or CD300A Q111 or Both. Monoclon Antib Immunodiagn Immunother 2023; 42:182-185. [PMID: 37902989 DOI: 10.1089/mab.2023.0017] [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] [Indexed: 11/01/2023] Open
Abstract
CD300A is a member of the CD300 immunoglobulin (Ig)-like receptor family consisting of eight molecules in humans, all of which contain one Ig-like domain in the extracellular portion. Upon binding its ligand phosphatidylserine or phosphatidylethanolamine, CD300A mediates an inhibitory signal through the immunoreceptor tyrosine-based inhibitory motif in the cytoplasmic portion. The CD300 family molecules are highly homologous to each other. In addition, CD300A has a single nucleotide polymorphism (rs2272111), which is a nonsense mutation encoding glutamine (CD300AQ111) instead of arginine (CD300AR111) at residue 111 in the Ig-like domain of CD300A. In this study, we successfully generated monoclonal antibodies (mAbs) specific to either CD300AR111 or CD300AQ111 or both. These mAbs are useful for the analysis of CD300A genotype by flow cytometry and the development of an antibody drug for the treatment of various diseases.
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Affiliation(s)
- Hitoshi Koizumi
- Department of Immunology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
- Department of Otolaryngology-Head and Neck Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Chigusa Nakahashi-Oda
- Department of Immunology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
- R&D Center for Innovative Drug Discovery, University of Tsukuba, Ibaraki, Japan
| | - Wenxin Lyu
- Department of Immunology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | | | - Keiji Tabuchi
- Department of Otolaryngology-Head and Neck Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazuko Shibuya
- Department of Immunology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
- R&D Center for Innovative Drug Discovery, University of Tsukuba, Ibaraki, Japan
| | - Akira Shibuya
- Department of Immunology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
- TNAX Biopharma Corporation, Tsukuba, Ibaraki, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), Tsukuba, Japan
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Shook PL, Singh M, Singh K. Macrophages in the Inflammatory Phase following Myocardial Infarction: Role of Exogenous Ubiquitin. BIOLOGY 2023; 12:1258. [PMID: 37759657 PMCID: PMC10526096 DOI: 10.3390/biology12091258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
Cardiovascular disease (CVD) is one of the leading causes of death worldwide. One of the most common implications of CVD is myocardial infarction (MI). Following MI, the repair of the infarcted heart occurs through three distinct, yet overlapping phases of inflammation, proliferation, and maturation. Macrophages are essential to the resolution of the inflammatory phase due to their role in phagocytosis and efferocytosis. However, excessive and long-term macrophage accumulation at the area of injury and dysregulated function can induce adverse cardiac remodeling post-MI. Ubiquitin (UB) is a highly evolutionarily conserved small protein and is a normal constituent of plasma. Levels of UB are increased in the plasma during a variety of pathological conditions, including ischemic heart disease. Treatment of mice with UB associates with decreased inflammatory response and improved heart function following ischemia/reperfusion injury. This review summarizes the role of macrophages in the infarct healing process of the heart post-MI, and discusses the role of exogenous UB in myocardial remodeling post-MI and in the modulation of macrophage phenotype and function.
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Affiliation(s)
- Paige L. Shook
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (P.L.S.); (M.S.)
| | - Mahipal Singh
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (P.L.S.); (M.S.)
| | - Krishna Singh
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA; (P.L.S.); (M.S.)
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
- James H. Quillen Veterans Affairs Medical Center, Mountain Home, TN 37684, USA
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Cheng J, Wang W, Xia Y, Li Y, Jia J, Xiao G. Regulators of phagocytosis as pharmacologic targets for stroke treatment. Front Pharmacol 2023; 14:1122527. [PMID: 37601043 PMCID: PMC10433754 DOI: 10.3389/fphar.2023.1122527] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 07/20/2023] [Indexed: 08/22/2023] Open
Abstract
Stroke, including ischemic and hemorrhagic stroke, causes massive cell death in the brain, which is followed by secondary inflammatory injury initiated by disease-associated molecular patterns released from dead cells. Phagocytosis, a cellular process of engulfment and digestion of dead cells, promotes the resolution of inflammation and repair following stroke. However, professional or non-professional phagocytes also phagocytose stressed but viable cells in the brain or excessively phagocytose myelin sheaths or prune synapses, consequently exacerbating brain injury and impairing repair following stroke. Phagocytosis includes the smell, eating and digestion phases. Notably, efficient phagocytosis critically depends on phagocyte capacity to take up dead cells continually due to the limited number of phagocytes vs. dead cells after injury. Moreover, phenotypic polarization of phagocytes occurring after phagocytosis is also essential to the proresolving and prorepair properties of phagocytosis. Much has been learned about the molecular signals and regulatory mechanisms governing the sense and recognition of dead cells by phagocytes during the smell and eating phase following stroke. However, some key areas remain extremely understudied, including the mechanisms involved in digestion regulation, continual phagocytosis and phagocytosis-induced phenotypic switching following stroke. Here, we summarize new discoveries related to the molecular mechanisms and multifaceted effects of phagocytosis on brain injury and repair following stroke and highlight the knowledge gaps in poststroke phagocytosis. We suggest that advancing the understanding of poststroke phagocytosis will help identify more biological targets for stroke treatment.
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Affiliation(s)
- Jian Cheng
- Clinical Research Center of Neurological Disease, The Second Affiliated Hospital of Soochow University, Suzhou, China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of Neuroscience, Soochow University, Suzhou, China
| | - Wei Wang
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yiqing Xia
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Institute of Neuroscience, Soochow University, Suzhou, China
| | - Yi Li
- Academy of Pharmacy, Xi’an Jiaotong-Liverpool University, Suzhou, China
| | - Jia Jia
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Guodong Xiao
- Suzhou Clinical Research Center of Neurological Disease, Department of Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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11
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Zou D, Yang P, Liu J, Dai F, Xiao Y, Zhao A, Huang N. Constructing Mal-Efferocytic Macrophage Model and Its Atherosclerotic Spheroids and Rat Model for Therapeutic Evaluation. Adv Biol (Weinh) 2023; 7:e2200277. [PMID: 36721069 DOI: 10.1002/adbi.202200277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/27/2022] [Indexed: 02/02/2023]
Abstract
Efferocytosis, responsible for apoptotic cell clearance, is an essential factor against atherosclerosis. It is reported that efferocytosis is severely impaired in fibroatheroma, especially in vulnerable thin cap fibroatheroma. However, there is a shortage of studies on efferocytosis defects in cell and animal models. Here, the impacts of oxidized low density lipoprotein (ox-LDL) and glut 1 inhibitor (STF31) on efferocytosis of macrophages are studied, and an evaluation system is constructed. Through regulating the cell ratios and stimulus, three types of atherosclerotic spheroids are fabricated, and a necrotic core emerges with surrounding apoptotic cells. Rat models present a similar phenomenon in that substantial apoptotic cells are uncleared in time in vulnerable plaque, and the model period is shortened to 7 weeks. Mechanism studies reveal that ox-LDL, through mRNA and miRNA modulation, downregulates efferocytosis receptor (PPARγ/LXRα/MerTK), internalization molecule (SLC29a1), and upregulates the competitive receptor CD300a that inhibits efferocytosis receptor-ligand binding process. The foam cell differentiation has also confirmed that CD36 and Lp-PLA2 levels are significantly elevated, and macrophages present an interesting transition into prothrombic phenotype. Collectively, the atherosclerotic models featured by efferocytosis defect provide a comprehensive platform to evaluate the efficacy of medicine and biomaterials for atherosclerosis treatment.
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Affiliation(s)
- Dan Zou
- Key Laboratory for Advanced Technologies of Materials, Ministry of Education, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- 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, Chengdu, 610031, P. R. China
- School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, P. R. China
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12
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Garcia-Bonilla L, Shahanoor Z, Sciortino R, Nazarzoda O, Racchumi G, Iadecola C, Anrather J. Brain and blood single-cell transcriptomics in acute and subacute phases after experimental stroke. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.31.535150. [PMID: 37066298 PMCID: PMC10103945 DOI: 10.1101/2023.03.31.535150] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Cerebral ischemia triggers a powerful inflammatory reaction involving both peripheral leukocytes and brain resident cells. Recent evidence indicates that their differentiation into a variety of functional phenotypes contributes to both tissue injury and repair. However, the temporal dynamics and diversity of post-stroke immune cell subsets remain poorly understood. To address these limitations, we performed a longitudinal single-cell transcriptomic study of both brain and mouse blood to obtain a composite picture of brain-infiltrating leukocytes, circulating leukocytes, microglia and endothelium diversity over the ischemic/reperfusion time. Brain cells and blood leukocytes isolated from mice 2 or 14 days after transient middle cerebral artery occlusion or sham surgery were purified by FACS sorting and processed for droplet-based single-cell transcriptomics. The analysis revealed a strong divergence of post-ischemic microglia, macrophages, and neutrophils over time, while such diversity was less evident in dendritic cells, B, T and NK cells. Conversely, brain endothelial cells and brain associated-macrophages showed altered transcriptomic signatures at 2 days post-stroke, but low divergence from sham at day 14. Pseudotime trajectory inference predicted the in-situ longitudinal progression of monocyte-derived macrophages from their blood precursors into day 2 and day 14 phenotypes, while microglia phenotypes at these two time points were not connected. In contrast to monocyte-derived macrophages, neutrophils were predicted to be continuously de-novo recruited from the blood. Brain single-cell transcriptomics from both female and male aged mice did not show major changes in respect to young mice, but aged and young brains differed in their immune cell composition. Furthermore, blood leukocyte analysis also revealed altered transcriptomes after stroke. However, brain-infiltrating leukocytes displayed higher transcriptomic divergence than their circulating counterparts, indicating that phenotypic diversification into cellular subsets occurs within the brain in the early and the recovery phase of ischemic stroke. In addition, this resource report contains a searchable database https://anratherlab.shinyapps.io/strokevis/ to allow user-friendly access to our data. The StrokeVis tool constitutes a comprehensive gene expression atlas that can be interrogated at the gene and cell type level to explore the transcriptional changes of endothelial and immune cell subsets from mouse brain and blood after stroke.
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Affiliation(s)
- Lidia Garcia-Bonilla
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Ziasmin Shahanoor
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Rose Sciortino
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Omina Nazarzoda
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Gianfranco Racchumi
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Costantino Iadecola
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
| | - Josef Anrather
- The Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY 10021
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13
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Shichita T, Ooboshi H, Yoshimura A. Neuroimmune mechanisms and therapies mediating post-ischaemic brain injury and repair. Nat Rev Neurosci 2023; 24:299-312. [PMID: 36973481 DOI: 10.1038/s41583-023-00690-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2023] [Indexed: 03/29/2023]
Abstract
The nervous and immune systems control whole-body homeostasis and respond to various types of tissue injury, including stroke, in a coordinated manner. Cerebral ischaemia and subsequent neuronal cell death activate resident or infiltrating immune cells, which trigger neuroinflammation that affects functional prognosis after stroke. Inflammatory immune cells exacerbate ischaemic neuronal injury after the onset of brain ischaemia; however, some of the immune cells thereafter change their function to neural repair. The recovery processes after ischaemic brain injury require additional and close interactions between the nervous and immune systems through various mechanisms. Thus, the brain controls its own inflammation and repair processes after injury via the immune system, which provides a promising therapeutic opportunity for stroke recovery.
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Affiliation(s)
- Takashi Shichita
- Stroke Renaissance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.
- Department of Neuroinflammation and Repair, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.
- Core Research for Evolutionary Medical Science and Technology (CREST), Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.
| | - Hiroaki Ooboshi
- Section of Internal Medicine, Department of Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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14
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Shi J, Wu X, Wang Z, Li F, Meng Y, Moore RM, Cui J, Xue C, Croce KR, Yurdagul A, Doench JG, Li W, Zarbalis KS, Tabas I, Yamamoto A, Zhang H. A genome-wide CRISPR screen identifies WDFY3 as a regulator of macrophage efferocytosis. Nat Commun 2022; 13:7929. [PMID: 36566259 PMCID: PMC9789999 DOI: 10.1038/s41467-022-35604-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 12/13/2022] [Indexed: 12/25/2022] Open
Abstract
Phagocytic clearance of dying cells, termed efferocytosis, is essential for maintaining tissue homeostasis, yet our understanding of efferocytosis regulation remains incomplete. Here we perform a FACS-based, genome-wide CRISPR knockout screen in primary mouse macrophages to search for novel regulators of efferocytosis. The results show that Wdfy3 knockout in macrophages specifically impairs uptake, but not binding, of apoptotic cells due to defective actin disassembly. Additionally, WDFY3 interacts with GABARAP, thus facilitating LC3 lipidation and subsequent lysosomal acidification to permit the degradation of apoptotic cell components. Mechanistically, while the C-terminus of WDFY3 is sufficient to rescue the impaired degradation induced by Wdfy3 knockout, full-length WDFY3 is required to reconstitute the uptake of apoptotic cells. Finally, WDFY3 is also required for efficient efferocytosis in vivo in mice and in vitro in primary human macrophages. This work thus expands our knowledge of the mechanisms of macrophage efferocytosis, as well as supports genome-wide CRISPR screen as a platform for interrogating complex functional phenotypes in primary macrophages.
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Affiliation(s)
- Jianting Shi
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Xun Wu
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Ziyi Wang
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Fang Li
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Yujiao Meng
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
- Beijing University of Chinese Medicine, Beijing, China
| | - Rebecca M Moore
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Jian Cui
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Chenyi Xue
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Katherine R Croce
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Arif Yurdagul
- Department of Molecular & Cellular Physiology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, LA, USA
| | - John G Doench
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Wei Li
- Center for Genetic Medicine Research, Children's National Hospital, Washington, DC, USA
- Department of Genomics and Precision Medicine, George Washington University, Washington, DC, USA
| | - Konstantinos S Zarbalis
- University of California at Davis, Department of Pathology and Laboratory Medicine, Sacramento, CA, 95817, USA
- Shriners Hospitals for Children Northern California, Sacramento, CA, 95817, USA
- UC Davis MIND Institute, Sacramento, CA, 95817, USA
| | - Ira Tabas
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Department of Medicine, Columbia University, New York, NY, USA
- Department of Physiology and Cellular Biophysics, Columbia University, New York, NY, USA
| | - Ai Yamamoto
- Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
| | - Hanrui Zhang
- Cardiometabolic Genomics Program, Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA.
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15
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Murata R, Kinoshita S, Matsuda K, Kawaguchi A, Shibuya A, Shibuya K. G307S DNAM-1 Mutation Exacerbates Autoimmune Encephalomyelitis via Enhancing CD4+ T Cell Activation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:ji2200608. [PMID: 36426998 DOI: 10.4049/jimmunol.2200608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/12/2022] [Indexed: 02/17/2024]
Abstract
Although rs763361, which causes a nonsynonymous glycine-to-serine mutation at residue 307 (G307S mutation) of the DNAX accessory molecule-1 (DNAM-1) immunoreceptor, is a single-nucleotide polymorphism associated with autoimmune disease susceptibility, little is known about how the single-nucleotide polymorphism is involved in pathogenesis. In this study, we established human CD4+ T cell transfectants stably expressing wild-type (WT) or G307S DNAM-1 and showed that the costimulatory signal from G307S DNAM-1 induced greater proinflammatory cytokine production and cell proliferation than that from wild-type DNAM-1. The G307S mutation also enhanced the recruitment of the tyrosine kinase Lck and augmented p-Tyr322 of DNAM-1. We also established a mouse myelin Ag-specific CD4+ T cell transfectant stably expressing the chimeric DNAM-1 (chDNAM-1) consisting of the extracellular, transmembrane, and a part of intracellular regions of mouse DNAM-1 (residues 1-285) fused with the part of the intracellular region (residues 286-336) of human WT or G307S chDNAM-1. Adoptive transfer of the mouse T cell transfectant expressing the G307S chDNAM-1 into mice exacerbated experimental autoimmune encephalomyelitis compared with the transfer of cells expressing the WT chDNAM-1. These findings suggest that rs763361 is a gain-of-function mutation that enhances DNAM-1-mediated costimulatory signaling for proinflammatory responses.
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Affiliation(s)
- Rikito Murata
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- PhD Program in Human Biology, University of Tsukuba, Tsukuba, Japan
| | - Shota Kinoshita
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- PhD Program in Human Biology, University of Tsukuba, Tsukuba, Japan
| | - Kenshiro Matsuda
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
| | - Atsushi Kawaguchi
- Infection Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan; and
| | - Akira Shibuya
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
- R&D Center for Innovative Drug Discovery, University of Tsukuba, Tsukuba, Japan
| | - Kazuko Shibuya
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
- R&D Center for Innovative Drug Discovery, University of Tsukuba, Tsukuba, Japan
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16
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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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