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Updated: Oct 21, 2025

Modeling Spontaneous Metastatic Renal Cell Carcinoma mRCC in Mice Following Nephrectomy
Published on: April 29, 2014
KPNA2 promotes renal cell carcinoma proliferation and metastasis via NPM
Song Zheng1, Xiaofan Li2,3, Ting Deng4
1Department of Urology, Fujian Medical University Union Hospital, Fuzhou, China.
Abstract:
Karyopherin α2 (KPNA2), involved in nucleocytoplasmic transport, has been reported to be up-regulated in tumorigenesis. However, comprehensive studies of KPNA2 functions in renal cell carcinoma (RCC) are still lacking. In this study, we aim to investigate the roles of KPNA2 in kidney tumour development. Our results showed that down-regulation of KPNA2 inhibited the proliferation and invasion of kidney tumour cell cells in vitro, while the cell cycle arrest and cellular apoptosis were induced once KPNA2 was silenced. Repression of KPNA2 was proved to be efficient to repress tumorigenesis and development of kidney tumour in in nude mice. Furthermore, one related participator, NPM, was identified based on Co-IP/MS and bioinformatics analyses. The up-regulation of NPM attenuates the efficiency of knockdown KPNA2. These results indicated that KPNA2 may regulate NPM to play a crucial role for kidney tumour development.
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