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Article . 2015
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FEBS Letters
Article . 2015 . Peer-reviewed
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FEBS Letters
Article . 2015
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Dynamic subcellular localization of aquaporin‐7 in white adipocytes

Authors: Miyauchi, Takayuki; Yamamoto, Hiroyuki; Abe, Yoichiro; Yoshida, Go J; Rojek, Aleksandra; Sohara, Eisei; Uchida, Shinichi; +2 Authors

Dynamic subcellular localization of aquaporin‐7 in white adipocytes

Abstract

Aquaporin‐7 (AQP7) is expressed in adipose tissue, permeated by water and glycerol, and is involved in lipid metabolism. AQP7‐null mice develop obesity, insulin resistance, and adipocyte hypertrophy. Here, we show that AQP7 is expressed in adipocyte plasma membranes, and is re‐localized to intracellular membranes in response to catecholamine in mouse white adipose tissue. We found that internalization of AQP7 was induced by PKA activation and comparative gene identification 58 (CGI‐58). This relocation was confirmed by functional studies in 3T3‐L1 adipocytes. Collectively, these results suggest that AQP7 makes several contributions to adipocyte metabolism, in both cortical and intracellular membranes.

Keywords

Adipocyte, Lipolysis, Adipocytes, White, 1-Acylglycerol-3-Phosphate O-Acyltransferase, Aquaporins, Cyclic AMP-Dependent Protein Kinases, Immunohistochemistry, Mice, Protein Transport, 3T3-L1 Cells, Animals, Aquaporin-7, Comparative gene identification 58

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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    26
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
26
Top 10%
Average
Top 10%
Green