Functional inhibition of UQCRB suppresses angiogenesis in zebrafish.

As a subunit of mitochondrial complex III, UQCRB plays an important role in complex III stability, electron transport, and cellular oxygen sensing. Herein, we report UQCRB function regarding angiogenesis in vivo with the zebrafish (Danio rerio). UQCRB knockdown inhibited angiogenesis in zebrafish leading to the suppression of VEGF expression. Moreover, the UQCRB-targeting small molecule terpestacin also inhibited angiogenesis and VEGF levels in zebrafish, supporting the role of UQCRB in angiogenesis. Collectively, UQCRB loss of function by either genetic and pharmacological means inhibited angiogenesis, indicating that UQCRB plays a key role in this process and can be a prognostic marker of angiogenesis- and mitochondria-related diseases. Copyright © 2013 Elsevier Inc. All rights reserved.

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Yoon Sun Cho, Hye Jin Jung, Seung Hyeok Seok, Alexander Y Payumo, James K Chen, Ho Jeong Kwon. Functional inhibition of UQCRB suppresses angiogenesis in zebrafish. Biochemical and biophysical research communications. 2013 Apr 19;433(4):396-400

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PMID: 23454382

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