PMID- 28138695 OWN - NLM STAT- MEDLINE DCOM- 20170713 LR - 20170713 IS - 1791-3004 (Electronic) IS - 1791-2997 (Linking) VI - 15 IP - 3 DP - 2017 Mar TI - Involvement of retinoblastoma-associated protein 48 during photodynamic therapy of cervical cancer cells. PG - 1393-1400 LID - 10.3892/mmr.2017.6151 [doi] AB - 5-Aminolevulinic acid-mediated photodynamic therapy (ALA‑PDT) is an effective treatment option for cervical intraepithelial neoplasia, the precancerous lesion of cervical cancer, and early cervical cancer, particularly for young or nulliparous women who want to remain fertile. A previous report described the involvement of histone deacetylases (HDAC) during ALA‑PDT mediated apoptosis in the cerebral cortex of a mouse model. Retinoblastoma‑associated protein 48 (RbAp48), a highly abundant component of HDACs, is a critical mediator that controls the transforming activity of human papillomavirus 16 in cervical cancer cells. The aim of the present study was to investigate the involvement of RbAp48 in ALA‑PDT‑induced cell death in cervical cancer cells. RbAp48 was significantly upregulated in cervical cancer cell lines treated with ALA‑PDT, including SiHa and HeLa cells. To establish the relevance of RbAp48 and the efficacy of ALA‑PDT in cervical cancer cells, the effect of ALA‑PDT was investigated in SiHa or HeLa cells following the depletion of RbAp48 by small interfering RNA (siRNA). Reduction of RbAp48 led to the reduced suppression of proliferation and apoptosis induced by ALA‑PDT in cervical cancer cells, which was associated with a reduction in tumor suppressor protein 53 (p53), retinoblastoma (Rb), apoptosis‑related enzyme caspase‑3, and increased levels of the oncogenic genes, human papillomavirus E6 and E7. These results provide evidence that RbAp48 is an important contributor to the efficacy of ALA‑PDT in cervical cancer cells. RbAp48 may be a therapeutic target that may help to improve the treatment of cervical cancer. FAU - Wu, Shuxia AU - Wu S AD - Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China. FAU - Wang, Lijun AU - Wang L AD - Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China. FAU - Ren, Xingye AU - Ren X AD - Department of Gynecology and Obstetrics, The Fifth People's Hospital of Jinan, Jinan, Shandong 250021, P.R. China. FAU - Pan, Yulu AU - Pan Y AD - Department of Gynecology and Obstetrics, The Fifth People's Hospital of Jinan, Jinan, Shandong 250021, P.R. China. FAU - Peng, Yan AU - Peng Y AD - Department of Gynecology and Obstetrics, The Fifth People's Hospital of Jinan, Jinan, Shandong 250021, P.R. China. FAU - Zou, Xiaoyan AU - Zou X AD - Department of Gynecology and Obstetrics, The Fifth People's Hospital of Jinan, Jinan, Shandong 250021, P.R. China. FAU - Shi, Cuige AU - Shi C AD - National Research Institute of Family Planning, Beijing 100081, P.R. China. FAU - Zhang, Youzhong AU - Zhang Y AD - Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China. LA - eng PT - Journal Article DEP - 20170126 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Photosensitizing Agents) RN - 0 (RNA, Messenger) RN - 0 (RNA, Small Interfering) RN - 0 (Retinoblastoma-Binding Protein 4) SB - IM MH - Animals MH - Apoptosis/drug effects/genetics/radiation effects MH - Cell Line, Tumor MH - Female MH - Gene Expression Regulation, Neoplastic/drug effects/radiation effects MH - Gene Silencing MH - HeLa Cells MH - Humans MH - *Light MH - Mice MH - *Photochemotherapy MH - Photosensitizing Agents/*pharmacology MH - RNA Interference MH - RNA, Messenger/genetics/metabolism MH - RNA, Small Interfering MH - Retinoblastoma-Binding Protein 4/*genetics/metabolism EDAT- 2017/02/01 06:00 MHDA- 2017/07/14 06:00 CRDT- 2017/02/01 06:00 PHST- 2015/11/14 00:00 [received] PHST- 2016/11/24 00:00 [accepted] PHST- 2017/02/01 06:00 [pubmed] PHST- 2017/07/14 06:00 [medline] PHST- 2017/02/01 06:00 [entrez] AID - 10.3892/mmr.2017.6151 [doi] PST - ppublish SO - Mol Med Rep. 2017 Mar;15(3):1393-1400. doi: 10.3892/mmr.2017.6151. Epub 2017 Jan 26.