Mesenchymal stem cells shift the pro-inflammatory phenotype of neutrophils to ameliorate acute lung injury.


Journal

Stem cell research & therapy
ISSN: 1757-6512
Titre abrégé: Stem Cell Res Ther
Pays: England
ID NLM: 101527581

Informations de publication

Date de publication:
08 08 2023
Historique:
received: 18 10 2022
accepted: 31 07 2023
medline: 10 8 2023
pubmed: 9 8 2023
entrez: 8 8 2023
Statut: epublish

Résumé

Mesenchymal stem cell (MSC) treatment plays a major role in the management of acute lung injury (ALI), and neutrophils are the initial line of defense against ALI. However, the effect of MSCs on neutrophils in ALI remains mostly unknown. We investigated the characteristics of neutrophils in lung tissue of ALI mice induced by lipopolysaccharide after treatment with MSCs using single-cell RNA sequencing. Neutrophils separated from lung tissue in ALI were co-cultured with MSCs, and then samples were collected for reverse transcription-polymerase chain reaction and flow cytometry. During inflammation, six clusters of neutrophils were identified, annotated as activated, aged, and circulatory neutrophils. Activated neutrophils had higher chemotaxis, reactive oxygen species (ROS) production, and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase scores than aged neutrophils. Circulatory neutrophils occurred mainly in healthy tissue and were characterized by higher expression of Cxcr2 and Sell. Activated neutrophils tended to exhibit higher expression of Cxcl10 and Cd47, and lower expression of Cd24a, while aged neutrophils expressed a lower level of Cd47 and higher level of Cd24a. MSC treatment shifted activated neutrophils toward an aged neutrophil phenotype by upregulating the expression of CD24, thereby inhibiting inflammation by reducing chemotaxis, ROS production, and NADPH oxidase. We identified the immunosuppressive effects of MSCs on the subtype distribution of neutrophils and provided new insight into the therapeutic mechanism of MSC treatment in ALI.

Sections du résumé

BACKGROUND
Mesenchymal stem cell (MSC) treatment plays a major role in the management of acute lung injury (ALI), and neutrophils are the initial line of defense against ALI. However, the effect of MSCs on neutrophils in ALI remains mostly unknown.
METHODS
We investigated the characteristics of neutrophils in lung tissue of ALI mice induced by lipopolysaccharide after treatment with MSCs using single-cell RNA sequencing. Neutrophils separated from lung tissue in ALI were co-cultured with MSCs, and then samples were collected for reverse transcription-polymerase chain reaction and flow cytometry.
RESULTS
During inflammation, six clusters of neutrophils were identified, annotated as activated, aged, and circulatory neutrophils. Activated neutrophils had higher chemotaxis, reactive oxygen species (ROS) production, and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase scores than aged neutrophils. Circulatory neutrophils occurred mainly in healthy tissue and were characterized by higher expression of Cxcr2 and Sell. Activated neutrophils tended to exhibit higher expression of Cxcl10 and Cd47, and lower expression of Cd24a, while aged neutrophils expressed a lower level of Cd47 and higher level of Cd24a. MSC treatment shifted activated neutrophils toward an aged neutrophil phenotype by upregulating the expression of CD24, thereby inhibiting inflammation by reducing chemotaxis, ROS production, and NADPH oxidase.
CONCLUSION
We identified the immunosuppressive effects of MSCs on the subtype distribution of neutrophils and provided new insight into the therapeutic mechanism of MSC treatment in ALI.

Identifiants

pubmed: 37553691
doi: 10.1186/s13287-023-03438-w
pii: 10.1186/s13287-023-03438-w
pmc: PMC10408228
doi:

Substances chimiques

CD47 Antigen 0
Reactive Oxygen Species 0
Lipopolysaccharides 0

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

197

Informations de copyright

© 2023. BioMed Central Ltd., part of Springer Nature.

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Auteurs

Bing Feng (B)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Xudong Feng (X)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Yingduo Yu (Y)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Haoying Xu (H)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Qingqing Ye (Q)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.
Key Laboratory of Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, 79 Qingchun Rd, Hangzhou, 310003, China.

Ruitian Hu (R)

Department of Chemistry, Duke University, 124 Science Drive, Durham, NC, 27708, USA.

Xinru Fang (X)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Feiqiong Gao (F)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Jian Wu (J)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Qiaoling Pan (Q)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Jiong Yu (J)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Guanjing Lang (G)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Lanjuan Li (L)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China.
Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, Shandong, China.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China.

Hongcui Cao (H)

State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou, 310003, China. hccao@zju.edu.cn.
National Clinical Research Center for Infectious Diseases, 79 Qingchun Rd., Hangzhou, 310003, China. hccao@zju.edu.cn.
Key Laboratory of Diagnosis and Treatment of Aging and Physic-Chemical Injury Diseases of Zhejiang Province, 79 Qingchun Rd, Hangzhou, 310003, China. hccao@zju.edu.cn.

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