Lost in translocation: the functions of the 18-kD translocator protein.
Lost in translocation: the functions of the 18-kD translocator protein.
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DOI:
10.1016/j.tem.2015.04.001
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发表时间:
2015-07
期刊:
影响因子:
--
通讯作者:
Banati RB
中科院分区:
文献类型:
--
作者:
Gut P;Zweckstetter M;Banati RB
Recent knock-out studies of the 18 kDa-translocator-protein (TSPO) report normal or latent phenotypes, raising doubts about the protein’s purported role in steroidogenesis and the validity of earlier data, notably in regard to the specificity and selectivity of TSPO-binding drugs. Here, we summarize available protein structural data and based on these suggest regulatory functions of TSPO and its putative endogenous ligands. We illustrate with examples the inherent limits of inference in loss-of-function studies and discuss the challenge in defining gene ‘functions’ that are emergent properties of complex interactions. To the call to reduce the risk of late-stage failure in clinical trials through better characterization of target/off-target effects of TSPO-binding drugs, now fascilitated by the use of TSPO null-background animals, we add a call for a more differentiated understanding of the ill-defined term ‘neuroinflammation’ that currently underpins the argument for TSPO as a diagnostic or therapeutic target
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