title: Transcription factor NF‑YA promotes a malignant phenotype by upregulating fatty acid synthase expression.
abstract: Recent studies have revealed that increased expression of the alpha subunit of nuclear transcription factor Y (NF‑YA) is associated with the malignant phenotype of various tumors. However, whether elevated expression of NF‑YA promotes a malignant phenotype in osteosarcoma (OS), and the molecular mechanisms underlying this predicted effect is currently unknown. In the present study, small hairpin RNA (shRNA)‑mediated knockdown of endogenous NF‑YA significantly inhibited the migration and invasion capabilities of OS cells in vitro, whereas ectopic expression of NF‑YA increased the migration and invasion capabilities of these cells. In addition, the induction of upregulated NF‑YA expression on the malignant phenotype of OS cells was attenuated by silencing fatty acid synthase (FASN) expression. Furthermore, the expression level of FASN was increased by upregulating NF‑YA, while decreased FASN expression was observed following NF‑YA silencing in OS cells. The results of the present study suggest that NF‑YA may promote a malignant phenotype in OS cells, in part, by activating the FASN signaling pathway, which may represent a promising target for the management of OS.
authors.affiliation: Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Guo
authors.affiliation: Department of Orthopedics, The Central People's Hospital of Ji'an City, Ji'an, Jiangxi 343000, P.R. China.
authors.forename: Ling Min
authors.initials: LM
authors.lastname: Kong
authors.affiliation: Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330004, P.R. China.
authors.forename: Ai Fen
authors.initials: AF
authors.lastname: Peng
authors.affiliation: Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Xin Hua
authors.initials: XH
authors.lastname: Long
authors.affiliation: Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Shu
mesh_terms: D015415:Biomarkers; D023081:CCAAT-Binding Factor / Q000378:metabolism*; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics; D064429:Fatty Acid Synthases / Q000235:genetics*; D015870:Gene Expression; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D009369:Neoplasms / Q000235:genetics* / Q000378:metabolism*; D010641:Phenotype; D034741:RNA, Small Interfering / Q000235:genetics; D014162:Transfection
chemical_list: D015415:Biomarkers; D023081:CCAAT-Binding Factor; C492061:NFYA protein, human; D034741:RNA, Small Interfering; D064429:Fatty Acid Synthases