Chemical control of protein stability and function in living mice.

Chemical control of protein stability and function in living mice.
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DOI:
10.1038/nm.1754
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发表时间:
2008-10
期刊:
影响因子:
82.9
通讯作者:
Thorne, Steve H.
Thorne, Steve H.
中科院分区:
医学1区
文献类型:
--
作者:
Banaszynski, Laura A.;Sellmyer, Mark A.;Contag, Christopher H.;Wandless, Thomas J.;Thorne, Steve H.

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Conditional control of protein function in vivo offers tremendous potential for deconvoluting the roles of individual proteins in complex systems. We recently developed a method in which a small protein domain termed a destabilizing domain confers instability to fusion protein partners in cultured cells. Instability is reversed when a cell-permeable small molecule binds to this domain. Here we describe the use of this system to regulate protein function in living mammals. We demonstrate regulation of secreted proteins and their biological activity, with conditional secretion of an immunomodulatory cytokine resulting in tumor burden reduction in mouse models. Additionally, we use this approach to control the function of a specific protein following systemic delivery of its gene to a tumor, suggesting uses for enhancing the specificity and efficacy of targeted gene-based therapies. This method represents a novel strategy to regulate protein function in living organisms with an extraordinary level of control.
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