title: Human papillomavirus infection and expression of ATPase family AAA domain containing 3A, a novel anti-autophagy factor, in uterine cervical cancer.
abstract: Our aim was to determine the association of human papillomavirus (HPV) infection with the expression of ATPase family AAA domain containing 3A (ATAD3A), an anti-autophagy factor, in uterine cervical cancer (UCC). The HPV genotype was determined by an Easychip HPV blot assay. ATAD3A expression was determined by immunohistochemical staining. High-risk HPV (hrHPV) was detected in 184 (88.9%) of 207 UCC cases. ATAD3A expression was detected in 164 (79.2%) UCC cases. A significant correlation was found between ATAD3A expression and the presence of hrHPV (p<0.001), FIGO stage (p=0.014), lymph node involvement (p=0.001), c-MET expression (p<0.001), interleukin-8 (p=0.03) and patient survival (p=0.0016). Interestingly, silencing of E6/E7 expression decreased ATAD3A expression and cell survival. Moreover, knockdown of ATAD3A (ATAD3Akd) expression or addition of resveratrol, increased cellular autophagy and apoptosis and reduced drug resistance. Resveratrol reduced ATAD3A expression, and increased abrasion of the mitochondrial outer membrane as well as numbers of autophagosomes, the phenomena that were frequently found in ATAD3Akd cells. In conclusion, our results show that HPV infection correlates with increased ATAD3A expression and drug resistance in UCC. Persistent HPV infection may stabilize ATAD3A expression to inhibit cell autophagy and apoptosis as well as to increase drug resistance.
authors: Department of Obstetrics and Gynecology, National Taiwan University Hospital Hsin Chu Branch, Hsin Chu, Taiwan, ROC.
authors: Tai-Chang
authors: TC
authors: Chen
authors: Yao-Ching
authors: YC
authors: Hung
authors: Tze-Yi
authors: TY
authors: Lin
authors: Hui-Wen
authors: HW
authors: Chang
authors: I-Ping
authors: IP
authors: Chiang
authors: Yueh-Ying
authors: YY
authors: Chen
authors: Kuan-Chih
authors: KC
authors: Chow
mesh_terms: D000074183:ATPases Associated with Diverse Cellular Activities; D000251:Adenosine Triphosphatases / Q000235:genetics / Q000378:metabolism*; D045744:Cell Line, Tumor; D005260:Female; D005838:Genotype; D006801:Humans; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism*; D024101:Mitochondrial Proteins / Q000235:genetics / Q000378:metabolism*; D030361:Papillomavirus Infections / Q000378:metabolism*; D034741:RNA, Small Interfering; D002583:Uterine Cervical Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000821:virology*
chemical_list: C549686:ATAD3A protein, human; D008565:Membrane Proteins; D024101:Mitochondrial Proteins; D034741:RNA, Small Interfering; D000251:Adenosine Triphosphatases; D000074183:ATPases Associated with Diverse Cellular Activities