β(IV)-spectrin as a stalk cell-intrinsic regulator of VEGF signaling.
β(IV)-spectrin as a stalk cell-intrinsic regulator of VEGF signaling.
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β(iv) - 谱蛋白是VEGF信号的茎细胞内部调节剂。
DOI:
10.1038/s41467-022-28933-1
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发表时间:
2022-03-14
影响因子:
16.6
通讯作者:
Lee NY
中科院分区:
文献类型:
--
作者:
Kwak EA;Pan CC;Ramonett A;Kumar S;Cruz-Flores P;Ahmed T;Ortiz HR;Lochhead JJ;Ellis NA;Mouneimne G;Georgieva TG;Lee YS;Vanderah TW;Largent-Milnes T;Mohler PJ;Hund TJ;Langlais PR;Mythreye K;Lee NY
Defective angiogenesis underlies over 50 malignant, ischemic and inflammatory disorders yet long-term therapeutic applications inevitably fail, thus highlighting the need for greater understanding of the vast crosstalk and compensatory mechanisms. Based on proteomic profiling of angiogenic endothelial components, here we report βIV-spectrin, a non-erythrocytic cytoskeletal protein, as a critical regulator of sprouting angiogenesis. Early loss of endothelial-specific βIV-spectrin promotes embryonic lethality in mice due to hypervascularization and hemorrhagic defects whereas neonatal depletion yields higher vascular density and tip cell populations in developing retina. During sprouting, βIV-spectrin expresses in stalk cells to inhibit their tip cell potential by enhancing VEGFR2 turnover in a manner independent of most cell-fate determining mechanisms. Rather, βIV-spectrin recruits CaMKII to the plasma membrane to directly phosphorylate VEGFR2 at Ser984, a previously undefined phosphoregulatory site that strongly induces VEGFR2 internalization and degradation. These findings support a distinct spectrin-based mechanism of tip-stalk cell specification during vascular development. Defective angiogenesis remains a high source of morbidity in multiple disorders. Here they show that βIV-spectrin, a membrane-associated cytoskeletal protein, is essential for regulation of endothelial tip cell populations and VEGF signaling during sprouting angiogenesis.
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影响因子:
7.8
作者:
Lampugnani, Maria Grazia;Orsenigo, Fabrizio;Gagliani, Maria Cristina;Tacchetti, Carlo;Dejana, Elisabetta
通讯作者:
Dejana, Elisabetta
影响因子:
9.8
作者:
Marziano C;Genet G;Hirschi KK
通讯作者:
Hirschi KK
影响因子:
11.8
作者:
Lanahan, Anthony A.;Hermans, Karlien;Claes, Filip;Kerley-Hamilton, Joanna S.;Zhuang, Zhen W.;Giordano, Frank J.;Carmeliet, Peter;Simons, Michael
通讯作者:
Simons, Michael
影响因子:
16.6
作者:
Aspalter IM;Gordon E;Dubrac A;Ragab A;Narloch J;Vizán P;Geudens I;Collins RT;Franco CA;Abrahams CL;Thurston G;Fruttiger M;Rosewell I;Eichmann A;Gerhardt H
通讯作者:
Gerhardt H
影响因子:
4.8
作者:
Mellberg, Sofie;Dimberg, Anna;Claesson-Welsh, Lena
通讯作者:
Claesson-Welsh, Lena