New transgenic mouse models enabling pan-hematopoietic or selective hematopoietic stem cell depletion in vivo.
New transgenic mouse models enabling pan-hematopoietic or selective hematopoietic stem cell depletion in vivo.
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DOI:
10.1038/s41598-022-07041-6
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发表时间:
2022-02-24
影响因子:
4.6
通讯作者:
Forsberg EC
中科院分区:
文献类型:
--
作者:
Rodriguez Y Baena A;Rajendiran S;Manso BA;Krietsch J;Boyer SW;Kirschmann J;Forsberg EC
Hematopoietic stem cell (HSC) multipotency and self-renewal are typically defined through serial transplantation experiments. Host conditioning is necessary for robust HSC engraftment, likely by reducing immune-mediated rejection and by clearing limited HSC niche space. Because irradiation of the recipient mouse is non-specific and broadly damaging, there is a need to develop alternative models to study HSC performance at steady-state and in the absence of radiation-induced stress. We have generated and characterized two new mouse models where either all hematopoietic cells or only HSCs can be specifically induced to die in vivo or in vitro. Hematopoietic-specific Vav1-mediated expression of a loxP-flanked diphtheria-toxin receptor (DTR) renders all hematopoietic cells sensitive to diphtheria toxin (DT) in “Vav-DTR” mice. Crossing these mice to Flk2-Cre mice results in “HSC-DTR” mice which exhibit HSC-selective DT sensitivity. We demonstrate robust, rapid, and highly selective cell ablation in these models. These new mouse models provide a platform to test whether HSCs are required for long-term hematopoiesis in vivo, for understanding the mechanisms regulating HSC engraftment, and interrogating in vivo hematopoietic differentiation pathways and mechanisms regulating hematopoietic homeostasis.
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影响因子:
5.9
作者:
Poscablo DM;Worthington AK;Smith-Berdan S;Forsberg EC
通讯作者:
Forsberg EC
影响因子:
2.6
作者:
Perez-Cunningham J;Boyer SW;Landon M;Forsberg EC
通讯作者:
Forsberg EC
影响因子:
3.9
作者:
Martin EW;Krietsch J;Reggiardo RE;Sousae R;Kim DH;Forsberg EC
通讯作者:
Forsberg EC
DOI:
10.1084/jem.20072168
发表时间:
2008-05-12
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Benz C;Martins VC;Radtke F;Bleul CC
通讯作者:
Bleul CC
影响因子:
64.8
作者:
Busch, Katrin;Klapproth, Kay;Rodewald, Hans-Reimer
通讯作者:
Rodewald, Hans-Reimer