Klf5 controls bone marrow homing of stem cells and progenitors through Rab5-mediated β1/β2-integrin trafficking.
Klf5 controls bone marrow homing of stem cells and progenitors through Rab5-mediated β1/β2-integrin trafficking.
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DOI:
10.1038/ncomms2645
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发表时间:
2013
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
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Kruppel-like factor 5 (Klf5) regulates pluripotent stem cell self-renewal but its role in somatic stem cells is unknown. Here we show that Klf5 deficient haematopoietic stem cells and progenitors (HSC/P) fail to engraft after transplantation. This HSC/P defect is associated with impaired bone marrow homing and lodging and decreased retention in bone marrow, and with decreased adhesion to fibronectin and expression of membrane-bound β1/β2-integrins. In vivo inducible gain-of-function of Klf5 in HSCs increases HSC/P adhesion. The expression of Rab5 family members, mediators of β1/β2-integrin recycling in the early endosome, is decreased in Klf5Δ/Δ HSC/Ps. Klf5 binds directly to the promoter of Rab5a/b and overexpression of Rab5b rescues the expression of activated β1/β2-integrins, adhesion and bone marrow homing of Klf5Δ/Δ HSC/Ps. Altogether, these data indicate that Klf5 is indispensable for adhesion, homing, lodging and retention of HSC/Ps in the bone marrow through Rab5-dependent post-translational regulation of β1/β2 integrins.
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影响因子:
2.7
作者:
Humbert, Magali;Halter, Veronika;Tschan, Mario P.
通讯作者:
Tschan, Mario P.
DOI:
10.1111/j.1600-0854.2012.01327.x
发表时间:
2012-04
期刊:
Traffic (Copenhagen, Denmark)
影响因子:
--
作者:
Arjonen A;Alanko J;Veltel S;Ivaska J
通讯作者:
Ivaska J
影响因子:
12.8
作者:
BOGGS, DR
通讯作者:
BOGGS, DR
影响因子:
5.7
作者:
Bella, J;Berman, HM
通讯作者:
Berman, HM
影响因子:
21.3
作者:
Jiang, Jianming;Chan, Yun-Shen;Ng, Huck-Hui
通讯作者:
Ng, Huck-Hui