Rational design of small molecule inhibitors targeting RhoA subfamily Rho GTPases.
Rational design of small molecule inhibitors targeting RhoA subfamily Rho GTPases.
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DOI:
10.1016/j.chembiol.2012.05.009
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发表时间:
2012-06-22
影响因子:
--
通讯作者:
Zheng Y
中科院分区:
文献类型:
--
作者:
Shang X;Marchioni F;Sipes N;Evelyn CR;Jerabek-Willemsen M;Duhr S;Seibel W;Wortman M;Zheng Y
Rho GTPases have been implicated in diverse cellular functions and are potential therapeutic targets. By virtual screening, we have identified a Rho specific inhibitor, Rhosin. Rhosin contains two-aromatic rings tethered by a linker, and it binds to the surface area sandwiching Trp58 of RhoA with a submicromolar Kd and effectively inhibits GEF-catalyzed RhoA activation. In cells Rhosin specifically inhibited RhoA activity and RhoA-mediated cellular function without affecting Cdc42 or Rac1 signaling activities. By suppressing RhoA or RhoC activity Rhosin could inhibit mammary sphere formation by breast cancer cells, suppress invasion of mammary epithelial cells, and induce neurite outgrowth of PC12 cells in synergy with NGF. Thus, the rational designed RhoA subfamily specific small molecule inhibitor is useful for studying the physiological and pathologic roles of Rho GTPase.
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