A photoconvertible fluorescent reporter to track chaperone-mediated autophagy.
A photoconvertible fluorescent reporter to track chaperone-mediated autophagy.
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DOI:
10.1038/ncomms1393
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发表时间:
2011-07-12
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
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Chaperone-mediated autophagy (CMA) is a selective mechanism for the degradation of soluble proteins in lysosomes. CMA contributes to cellular quality control and is activated as part of the cellular response to different stressors. Defective CMA has been identified in aging and different age-related diseases. Until now, CMA activity could only be measured in vitro upon isolation of lysosomes. Here we report the development of a photoconvertible fluorescent reporter that allows monitoring of CMA activity in living cells. Activation of CMA increases the association of the reporter with lysosomes which are visualized as a change in the intracellular fluorescence. The CMA reporter can be utilized in a broad variety of cells and is suitable for high-content microscopy. Using this reporter, we find that levels of basal and inducible CMA activity are cell-type dependent and we have identified an upregulation of this pathway in response to the catalytic inhibition of the proteasome.
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影响因子:
5.3
作者:
Bandyopadhyay, Urmi;Kaushik, Susmita;Cuervo, Ana Maria
通讯作者:
Cuervo, Ana Maria
影响因子:
82.9
作者:
通讯作者:
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影响因子:
10.9
作者:
Cuervo, Ana Maria
通讯作者:
Cuervo, Ana Maria
影响因子:
--
作者:
Perry, Cynthia N.;Kyoi, Shiori;Hariharan, Nirmala;Takagi, Hiromitsu;Sadoshima, Junichi;Gottlieb, Roberta A.
通讯作者:
Gottlieb, Roberta A.
影响因子:
3.3
作者:
Kaushik, Susmita;Massey, Ashish C.;Cuervo, Ana Maria
通讯作者:
Cuervo, Ana Maria