Your browser doesn't support javascript.
loading
NEDD4L represses prostate cancer cell proliferation via modulating PHF8 through the ubiquitin–proteasome pathway
Feng, Rui; Ouyang, Jun; Li, Zhongxing; Ge, Guangcheng; Wang, Chenghao; Jia, Yuejun.
Afiliación
  • Feng, Rui; The First Affiliated Hospital of Soochow University. Department of Urology. Suzhou. China
  • Ouyang, Jun; The First Affiliated Hospital of Soochow University. Department of Urology. Suzhou. China
  • Li, Zhongxing; Zhenjiang Hospital of Chinese Traditional and Western Medicine. Department of Urology. Zhenjiang. China
  • Ge, Guangcheng; Zhenjiang Hospital of Chinese Traditional and Western Medicine. Department of Urology. Zhenjiang. China
  • Wang, Chenghao; Zhenjiang Hospital of Chinese Traditional and Western Medicine. Department of Urology. Zhenjiang. China
  • Jia, Yuejun; Zhenjiang Hospital of Chinese Traditional and Western Medicine. Department of Urology. Zhenjiang. China
Clin. transl. oncol. (Print) ; 25(1): 243-255, ene. 2023.
Article en En | IBECS | ID: ibc-215838
Biblioteca responsable: ES1.1
Ubicación: ES15.1 - BNCS
ABSTRACT
Purpose Prostate cancer (PC) is a heterogeneous malignancy that greatly threatens man’s health. E3 ubiquitin-protein ligase neural precursor cell expressed developmentally downregulated 4-like (NEDD4L) imparts an regulatory role in various malignancies. This study focused on the modulatory mechanism of NEDD4L in proliferation of prostate cancer cells (PCCs) via regulating histone demethylase plant homeodomain finger protein 8 (PHF8/KDM7B) through the ubiquitin–proteasome system. Methods The expression levels of NEDD4L, PHF8, H3 lysine 9 dimethylation (H3K9me2) and activating transcription factor 2 (ATF2) in PC tissues and cell lines were detected via real-time quantitative polymerase chain reaction and Western blotting. After transfection of pcDNA3.1-NEDD4L, pcDNA3.1-PHF8, and pcDNA3.1-ATF2 into PCCs, cell proliferation was assessed via the cell counting kit-8 and 5-ethynyl-2'-deoxyuridine assays. Interaction between NEDD4L and PHF8 was identified via the protein immunoprecipitation. The ubiquitination level of PHF8 was determined via the ubiquitination detection. The enrichments of H3K9me2 and PHF8 in the ATF2 promotor region were detected via the chromatin-immunoprecipitation assay. Results PHF8 and ATF2 were highly expressed while NEDD4L was poorly expressed in PC tissues and cells. NEDD4L overexpression reduced proliferation of PCCs. NEDD4L induced degradation of PHF8 via ubiquitination. PHF8 limited the enrichment of H3K9me2 in the ATF2 promotor region and enhanced ATF2 transcription. Up regulation of PHF8 or ATF2 abolished the inhibitory role of NEDD4L in proliferation of PCCs. Conclusion NEDD4L facilitated degradation of PHF8 to limit ATF2 transcription, thereby suppressing proliferation of PCCs. (AU)
Asunto(s)
Palabras clave
Buscar en Google
Añadir a Mi BVS
Imprimir
XML

Colección: 06-national / ES Base de datos: IBECS Asunto principal: Neoplasias de la Próstata / Factores de Transcripción Límite: Humans / Male Idioma: En Revista: Clin. transl. oncol. (Print) Año: 2023 Tipo del documento: Article
Buscar en Google
Añadir a Mi BVS
Imprimir
XML

Colección: 06-national / ES Base de datos: IBECS Asunto principal: Neoplasias de la Próstata / Factores de Transcripción Límite: Humans / Male Idioma: En Revista: Clin. transl. oncol. (Print) Año: 2023 Tipo del documento: Article