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Ubiquitin-specific peptidase 5, a target molecule of vialinin A, is a key molecule of TNF-? production in RBL-2H3 cells.


ABSTRACT: Tumor necrosis factor alpha (TNF-?), a central mediator of the inflammatory response, is released from basophilic cells and other cells in response to a variety of proinflammatory stimuli. Vialinin A is a potent inhibitor of TNF-? production and is released from RBL-2H3 cells. Ubiquitin-specific peptidase 5 (USP5), a deubiquitinating enzyme, was identified as a target molecule of vialinin A and its enzymatic activity was inhibited by vialinin A. Here we report production of TNF-? is decreased in USP5 siRNA-knockdown RBL-2H3 cells, compared with control cells. The finding of the present study strongly suggests that USP5 is one of the essential molecules for the production of TNF-? in RBL-2H3.

SUBMITTER: Yoshioka Y 

PROVIDER: S-EPMC3857809 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Ubiquitin-specific peptidase 5, a target molecule of vialinin A, is a key molecule of TNF-α production in RBL-2H3 cells.

Yoshioka Yasukiyo Y   Ye Yue Qi YQ   Okada Kiyoshi K   Taniguchi Kayoko K   Yoshida Ayaka A   Sugaya Kouichi K   Onose Jun-ichi J   Koshino Hiroyuki H   Takahashi Shunya S   Yajima Arata A   Yajima Shunsuke S   Abe Naoki N  

PloS one 20131204 12


Tumor necrosis factor alpha (TNF-α), a central mediator of the inflammatory response, is released from basophilic cells and other cells in response to a variety of proinflammatory stimuli. Vialinin A is a potent inhibitor of TNF-α production and is released from RBL-2H3 cells. Ubiquitin-specific peptidase 5 (USP5), a deubiquitinating enzyme, was identified as a target molecule of vialinin A and its enzymatic activity was inhibited by vialinin A. Here we report production of TNF-α is decreased in  ...[more]

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