Regulation of Neuro-Microenvironment on Mitochondrial Mass of Hematopoietic Stem and Progenitor Cells.
10.19746/j.cnki.issn.1009-2137.2023.06.037
- Author:
Hong-Lin DUAN
1
,
2
;
Tao CHENG
1
,
3
;
Hui CHENG
1
,
4
Author Information
1. State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College
2. Tianjin 300020, China.
3. Tianjin 300020, China,E-mail: chengtao@ihcams.ac.cn.
4. Tianjin 300020, China,E-mail: chenghui@ihcams.ac.cn.
- Publication Type:Journal Article
- Keywords:
hematopoietic stem and progenitor cells;
mitochondrion;
nociceptive nerves;
sympathetic nerve
- MeSH:
Animals;
Mice;
Hematopoietic Stem Cells;
Bone Marrow/metabolism*;
Cell Differentiation;
Mitochondria;
Pharmaceutical Preparations/metabolism*
- From:
Journal of Experimental Hematology
2023;31(6):1838-1844
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To study the effects of the neuro-microenvironment on the mass of mitochondria in hematopoietic stem and progenitor cells (HSPC), and to understand the potential mechanisms how nerve regulates HSPC.
METHODS:6-hydroxydopamine (6-OHDA) and capsaicin were used to interfere with the function of sympathetic nerve and nociceptive nerve in mitochondria-GFP reporter mice, respectively. The fluorescence intensity of GFP in bone marrow and spleen was measured by flow cytometry. The GFP median fluorescence intensity (MFI) of HSPC in normal bone marrow and spleen was analyzed and compared. The changes of the mitochondrial mass in HSPCs in each group after denervation were compared.
RESULTS:Hematopoietic stem cells (HSC) had the highest mito-GFP MFI in steady-state (49 793±1 877), and the mito-GFP MFI gradually decreased during the differentiation of HSCs. Compared with control group, pharmaceutical nociceptive denervation significantly increased the mito-GFP MFI of bone marrow multipotent progenitor-1 (MPP1, 50 751±420 vs 44 020±510) and LKS- cells (15 673±65 vs 13 979±103); pharmaceutical sympathetic denervation significantly reduced the mito-GFP MFI of bone marrow LKS+ cells (21 667±351 vs 29 249±973).
CONCLUSION:Sympathetic and nociceptive nerves can regulate the mass of mitochondria in HSPC and affect the function of HSPCs.
