Decoupling the Functional Pleiotropy of Stem Cell Factor by Tuning c-Kit Signaling.
Decoupling the Functional Pleiotropy of Stem Cell Factor by Tuning c-Kit Signaling.
复制标题
通过调节c-Kit信号来解偶联干细胞因子的功能趋向性。
DOI:
10.1016/j.cell.2017.02.011
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发表时间:
2017-03-09
期刊:
影响因子:
64.5
通讯作者:
Garcia KC
中科院分区:
文献类型:
--
作者:
Ho CCM;Chhabra A;Starkl P;Schnorr PJ;Wilmes S;Moraga I;Kwon HS;Gaudenzio N;Sibilano R;Wehrman TS;Gakovic M;Sockolosky JT;Tiffany MR;Ring AM;Piehler J;Weissman IL;Galli SJ;Shizuru JA;Garcia KC
Most secreted growth factors and cytokines are functionally pleiotropic because their receptors are expressed on diverse cell types. While important for normal mammalian physiology, pleiotropy limits the efficacy of cytokines and growth factors as therapeutics. Stem cell factor (SCF) is a growth factor that acts through the c-Kit receptor tyrosine kinase to elicit hematopoietic progenitor expansion, but can be toxic when administered in vivo because it concurrently activates mast cells. We engineered a mechanism-based SCF partial agonist that impaired c-Kit dimerization, truncating downstream signaling amplitude. This SCF variant elicited biased activation of hematopoietic progenitors over mast cells in vitro and in vivo. Mouse models of SCF-mediated anaphylaxis, radioprotection, and hematopoietic expansion revealed that this SCF partial agonist retained therapeutic efficacy while exhibiting virtually no anaphylactic off-target effects. The approach of biasing cell activation by tuning signaling thresholds and outputs has applications to many dimeric receptor-ligand systems.
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影响因子:
5.2
作者:
Gardner, RV;Oliver, P;Astle, CM
通讯作者:
Astle, CM
影响因子:
16.6
作者:
Leibowitz, Brian J.;Wei, Liang;Zhang, Lin;Ping, Xiaochun;Epperly, Michael;Greenberger, Joel;Cheng, Tao;Yu, Jian
通讯作者:
Yu, Jian
影响因子:
4.8
作者:
Hsu, YR;Wu, GM;Langley, KE
通讯作者:
Langley, KE
影响因子:
64.5
作者:
Birnbaum ME;Mendoza JL;Sethi DK;Dong S;Glanville J;Dobbins J;Ozkan E;Davis MM;Wucherpfennig KW;Garcia KC
通讯作者:
Garcia KC
影响因子:
15.9
作者:
Gaudenzio, Nicolas;Sibilano, Riccardo;Galli, Stephen J.
通讯作者:
Galli, Stephen J.