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A regulatory circuitry comprising TP53, miR-29 family, and SETDB1 in non-small cell lung cancer.
Chen, Bifeng; Wang, Jingdong; Wang, Jieling; Wang, Huan; Gu, Xiuli; Tang, Liang; Feng, Xianhong.
Afiliación
  • Chen B; Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China cbifeng@whut.edu.cn xianhong_feng@hotmail.com.
  • Wang J; Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China.
  • Wang J; Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China.
  • Wang H; Department of Biological Science and Technology, School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China.
  • Gu X; Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology.
  • Tang L; Department of Reproductive Genetics, Wuhan Tongji Reproductive Medicine Hospital, Wuhan, China.
  • Feng X; Department of Human Anatomy, Histology and Embryology, Institute of Neuroscience, Changsha Medical University, Changsha, China.
Biosci Rep ; 38(5)2018 10 31.
Article en En | MEDLINE | ID: mdl-30054425
Lung cancer is a malignant tumor with high fatality rate and causes great harm to human economic life. Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. With the rapid development of epigenetic study in the last decade, the understanding of the pathogenesis of lung cancer and the development of personalized treatment of lung cancer are picking up pace. Previous studies showed that miR-29 family members (miR-29s; miR-29a, -29b, and -29c) are down-regulated in most human cancers, including NSCLC, but their biological roles in tumorigenesis and their regulation mechanism are still not fully elucidated. Herein, we reported that the miR-29a, -29b and, -29c were coincidently down-regulated in NSCLC, and the histone H3K9 methyltransferase SET domain, bifurcated 1 (SETDB1) was directly targetted by miR-29s Moreover, SETDB1 negatively regulated the expression of TP53 and overexpression of SETDB1 down-regulating the expression of miR-29s, while TP53 positively regulated the expression of miR-29s and overexpression of TP53 down-regulated the expression of SETDB1. On the other side, as a downstream target of TP53, the H3K9 methyltransferase Suv39h1 was also down-regulated by miR-29s via up-regulating TP53 expression. The further detection of H3K9 methylation status after changes in miR-29s expression revealed that they negatively regulated the levels of H3K9 di- and trimethylation in NSCLC. Collectively, our findings highlight a TP53/miR-29s/SETDB1 regulatory circuitry and assign a role of H3K9 methylation regulator to miR-29s, which may be a potential therapeutic target in the treatment of NSCLC.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteína Metiltransferasas / Proteína p53 Supresora de Tumor / Carcinoma de Pulmón de Células no Pequeñas / MicroARNs / Neoplasias Pulmonares Límite: Humans Idioma: En Revista: Biosci Rep Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Proteína Metiltransferasas / Proteína p53 Supresora de Tumor / Carcinoma de Pulmón de Células no Pequeñas / MicroARNs / Neoplasias Pulmonares Límite: Humans Idioma: En Revista: Biosci Rep Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido