光遺傳激活的抗體可用於內源性蛋白調節
作者:
小柯機器人發布時間:2019/10/15 12:54:47
韓國科學技術學院Won Do Heo和Byung Ouk Park等研究人員合作研發了光遺傳激活的細胞內抗體,從而用於直接調節內源性蛋白。相關論文2019年10月14日在線發表在《自然—方法學》上。
研究人員報導了由分開的抗體片段和藍光誘導性異源二聚化結構域組成的光遺傳學激活的細胞內抗體(光抗體)。研究人員通過從先前開發的細胞內抗體中產生若干種抗體來擴展了這種光抗體平臺,並證明了凝溶膠蛋白和β2-腎上腺素能受體(β2AR)光抗體的光激活分別抑制了內源性凝溶膠蛋白活性和β2AR信號傳導。
研究人員表示,細胞內抗體已成為用於成像、調節和中和內源性靶蛋白的強大工具。
附:英文原文
Title: Optogenetic activation of intracellular antibodies for direct modulation of endogenous proteins
Author: Daseuli Yu, Hansol Lee, Jongryul Hong, Hyunjin Jung, YoungJu Jo, Byung-Ha Oh, Byung Ouk Park, Won Do Heo
Issue&Volume: 2019-10-14
Abstract:
Intracellular antibodies have become powerful tools for imaging, modulating and neutralizing endogenous target proteins. Here, we describe an optogenetically activated intracellular antibody (optobody) consisting of split antibody fragments and blue-light inducible heterodimerization domains. We expanded this optobody platform by generating several optobodies from previously developed intracellular antibodies, and demonstrated that photoactivation of gelsolin and β2-adrenergic receptor (β2AR) optobodies suppressed endogenous gelsolin activity and β2AR signaling, respectively.
DOI: 10.1038/s41592-019-0592-7
Source: https://www.nature.com/articles/s41592-019-0592-7