Decline in IGF1 in the bone marrow microenvironment initiates hematopoietic stem cell aging.
Decline in IGF1 in the bone marrow microenvironment initiates hematopoietic stem cell aging.
复制标题
骨髓微环境中IGF1的下降引发造血干细胞衰老。
DOI:
10.1016/j.stem.2021.03.017
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发表时间:
2021-08-05
期刊:
影响因子:
23.9
通讯作者:
Trowbridge JJ
中科院分区:
文献类型:
--
作者:
Young K;Eudy E;Bell R;Loberg MA;Stearns T;Sharma D;Velten L;Haas S;Filippi MD;Trowbridge JJ
Decline in hematopoietic stem cell (HSC) function with age underlies limited healthspan of our blood and immune systems. In order to preserve health into older age, it is necessary to understand the nature and timing of initiating events that cause HSC aging. By performing a cross-sectional study in mice, we discover that hallmarks of aging in HSCs and hematopoiesis begin to accumulate by middle age, and that the bone marrow (BM) microenvironment at middle age induces and is indispensable for hematopoietic aging. Using unbiased approaches, we find decreased levels of the longevity-associated molecule IGF1 in the local middle-aged BM microenvironment is a factor causing HSC aging. Direct stimulation of middle-aged HSCs with IGF1 rescues molecular and functional hallmarks of aging, including restored mitochondrial activity. Thus, while decline in IGF1 supports longevity, our work indicates that this also compromises HSC function and limits hematopoietic healthspan. Young et al. uncover a key role for the bone marrow microenvironment in initiating functional hematopoietic stem cell decline by middle age. Decreased local IGF1 in the middle-aged bone marrow microenvironment induces and is indispensable for hematopoietic stem cell aging.
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影响因子:
29
作者:
Forte D;García-Fernández M;Sánchez-Aguilera A;Stavropoulou V;Fielding C;Martín-Pérez D;López JA;Costa ASH;Tronci L;Nikitopoulou E;Barber M;Gallipoli P;Marando L;Fernández de Castillejo CL;Tzankov A;Dietmann S;Cavo M;Catani L;Curti A;Vázquez J;Frezza C;Huntly BJ;Schwaller J;Méndez-Ferrer S
通讯作者:
Méndez-Ferrer S
影响因子:
23.9
作者:
Florian, Maria Carolina;Doerr, Karin;Niebel, Anja;Daria, Deidre;Schrezenmeier, Hubert;Rojewski, Markus;Filippi, Marie-Dominique;Hasenberg, Anja;Gunzer, Matthias;Scharffetter-Kochanek, Karin;Zheng, Yi;Geiger, Hartmut
通讯作者:
Geiger, Hartmut
DOI:
10.1084/jem.20111490
发表时间:
2011-12-19
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Dykstra B;Olthof S;Schreuder J;Ritsema M;de Haan G
通讯作者:
de Haan G
影响因子:
20.3
作者:
Gekas, Christos;Graf, Thomas
通讯作者:
Graf, Thomas
DOI:
10.1126/science.1172539
发表时间:
2010-04-16
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Fontana L;Partridge L;Longo VD
通讯作者:
Longo VD