Volume 6, Issue 3 2100752
Research Article

Single-Cell RNA Sequencing Reveals the Temporal Diversity and Dynamics of Cardiac Immunity after Myocardial Infarction

Kaiyu Jin

Kaiyu Jin

Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Shan Gao

Shan Gao

First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, 300193 China

National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193 China

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Penghui Yang

Penghui Yang

Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Rongfang Guo

Rongfang Guo

Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

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Dan Li

Dan Li

First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, 300193 China

National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193 China

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Yunsha Zhang

Yunsha Zhang

School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193 China

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Xiaoyan Lu

Corresponding Author

Xiaoyan Lu

Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

E-mail: [email protected]; [email protected]; [email protected]

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Guanwei Fan

Corresponding Author

Guanwei Fan

First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, 300193 China

National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193 China

State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617 China

E-mail: [email protected]; [email protected]; [email protected]

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Xiaohui Fan

Corresponding Author

Xiaohui Fan

Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058 China

State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617 China

Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, 310058 China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 13 January 2022
Citations: 20

Abstract

Myocardial infarction (MI) is strongly associated with the temporal regulation of cardiac immunity. However, a variety of current clinical trials have failed because of the lack of post-MI immunomodulating/anti-inflammatory targets. Single-cell RNA sequencing analysis of the cardiac Cd45+ immune cell at 0, 3, 7, and 14 d after injury in a mouse left anterior descending coronary artery ligation model is performed. Major immune cell populations, distinct subsets, and dynamic changes are identified. Macrophages (Mø) are most abundant, peaking at 3 d after infarction. Mø-5 and Mø-6 are the predominant infiltrated subsets at this time point, with strong expression of inflammatory factors. Further analysis demonstrates that suppressing these sets attenuated pathological MI progression by preventing subsequent leukocyte extravasation and adverse remodeling. Abundant apoptotic neutrophils and a profibrotic macrophage subset on days 7 and 14, respectively, are also detected. These results provide a basis for developing cell type- and time-specific interventions in MI.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are openly available in Gene Expression Omnibus (GEO) at https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE163465, reference number 163465.

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