Wenfang Zheng, Qifeng Luo, Xuehui Wang, Xiqian Zhou, Danrong Ye, Kaiyao Hua, Lin Fang
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引用次数: 0
Abstract
Triple-negative breast cancer (TNBC) was a subtype of breast cancer with high rate of metastasis and poor prognosis. Thus, it is urgent to explore the underlying mechanism of TNBC metastasis and seek for potential therapeutic targets to improve the prognosis of TNBC patients. Here we reported that nuclear autoantigenic sperm protein (NASP) was highly expressed in TNBC and related to poor prognosis of TNBC patients. NASP acted as an oncogene that promoted the progression and metastasis of TNBC. Mechanistically, high expression of NASP in TNBC was induced by SRSF1-mediated stabilization of NASP mRNA. NASP interacted with USP15 and facilitated its activity, which resulted in the deubiquitylation and stabilization of YAP by erasing K48-linked polyubiquitination. Moreover, in vivo studies validated the role of NASP in stimulating TNBC growth and metastasis. Altogether, NASP promoted TNBC progression and metastasis by stabilizing YAP in a USP15-dependent way. It might provide new insights and potential therapeutic targets for preventing TNBC metastasis and improving the prognosis of TNBC patients.
期刊介绍:
The International Journal of Biological Sciences is a peer-reviewed, open-access scientific journal published by Ivyspring International Publisher. It dedicates itself to publishing original articles, reviews, and short research communications across all domains of biological sciences.