PMID- 31028655 OWN - NLM STAT- MEDLINE DCOM- 20200109 LR - 20200309 IS - 2092-9293 (Electronic) IS - 1976-9571 (Linking) VI - 41 IP - 8 DP - 2019 Aug TI - Correlation of constitutive photomorphogenic 1 (COP1) and p27 tumor suppressor protein expression in ovarian cancer. PG - 879-884 LID - 10.1007/s13258-019-00818-6 [doi] AB - BACKGROUND: Constitutive photomorphogenic 1 (COP1) is an E3 ubiquitin ligase that regulates important target proteins for cell growth including p27. The tumor suppressor p27 negatively regulates the cell cycle by inhibiting cyclin-dependent kinase. COP1 negatively regulates p27 stability by mediating its nuclear export and degradation. OBJECTIVE: Even if COP1 and p27 are tightly related and have significant roles in tumor progression, the expression patterns and relationship of both proteins in cancer have not yet been studied. METHOD: We analyzed the expression patterns and relationship between COP1 and p27 using an ovarian cancer tissue microarray by dual immunofluorescence analysis. RESULTS: The expression levels of COP1 and p27 proteins were not significantly different between ovarian cancer tissue and normal control tissue. Other clinical data including age, tumor type, tumor grade, and stage were not significantly related to expression of the two proteins. The co-relationship between COP1 and p27 proteins was significantly high (Pearson correlation coefficient 0.79, p = 8.65 x 10(-22)). CONCLUSIONS: Our results demonstrate that while the expression levels of COP1 and p27 are highly correlated, they are not significantly related to cancer progression in ovarian cancer. FAU - Ko, Eun-Ji AU - Ko EJ AD - Department of Parasitology and Genetics, Kosin University College of Medicine, Busan, Republic of Korea. AD - Department of Biological Sciences, College of Natural Sciences, Pusan National University, Busan, Republic of Korea. FAU - Oh, Young Lim AU - Oh YL AD - Department of Obstetrics and Gynecology, Kosin University College of Medicine, Busan, Republic of Korea. FAU - Kim, Heung Yeol AU - Kim HY AD - Department of Obstetrics and Gynecology, Kosin University College of Medicine, Busan, Republic of Korea. FAU - Eo, Wan Kyu AU - Eo WK AD - Department of Internal Medicine, Kyung Hee University, Seoul, Republic of Korea. FAU - Kim, Hongbae AU - Kim H AD - Department of Obstetrics and Gynecology, Hallym University College of Medicine, Chuncheon, Republic of Korea. FAU - Kim, Ki Hyung AU - Kim KH AD - Department of Obstetrics and Gynecology, Pusan National University School of Medicine, Busan, Republic of Korea. AD - Biomedical Research Institute and Pusan Cancer Center, Pusan National University Hospital, Busan, Republic of Korea. FAU - Koh, Suk Bong AU - Koh SB AD - Department of Obstetrics and Gynecology, School of Medicine, Catholic University of Daegu, Daegu, Republic of Korea. FAU - Ock, Mee Sun AU - Ock MS AD - Department of Parasitology and Genetics, Kosin University College of Medicine, Busan, Republic of Korea. FAU - Choi, Yung Hyun AU - Choi YH AD - Department of Biochemistry, College of Oriental Medicine, Dongeui University, Busan, Republic of Korea. FAU - Kim, Ari AU - Kim A AD - Department of Obstetrics and Gynecology, Chicago Medical School, Rosalind Franklin University of Medicine and Science, Vernon Hills, IL, USA. FAU - Choi, Hyun Ho AU - Choi HH AD - Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. AD - Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China. FAU - Park, Eun Joo AU - Park EJ AD - Department of Obstetrics and Gynecology, Eulji Medical Center, Eulji University, Seoul, Republic of Korea. pej3119@eulji.ac.kr. FAU - Cha, Hee-Jae AU - Cha HJ AUID- ORCID: 0000-0002-6963-2685 AD - Department of Parasitology and Genetics, Kosin University College of Medicine, Busan, Republic of Korea. hcha@kosin.ac.kr. LA - eng PT - Journal Article DEP - 20190426 PL - Korea (South) TA - Genes Genomics JT - Genes & genomics JID - 101481027 RN - 147604-94-2 (Cyclin-Dependent Kinase Inhibitor p27) RN - EC 2.3.2.27 (COP1 protein, human) RN - EC 2.3.2.27 (Ubiquitin-Protein Ligases) SB - IM MH - Cyclin-Dependent Kinase Inhibitor p27/*genetics/metabolism MH - Female MH - *Gene Expression Regulation, Neoplastic MH - Humans MH - Ovarian Neoplasms/genetics/*metabolism MH - Ubiquitin-Protein Ligases/*genetics/metabolism OTO - NOTNLM OT - COP1 OT - Expression OT - Ovarian cancer OT - Tissue microarray OT - p27 EDAT- 2019/04/28 06:00 MHDA- 2020/01/10 06:00 CRDT- 2019/04/28 06:00 PHST- 2019/01/23 00:00 [received] PHST- 2019/04/02 00:00 [accepted] PHST- 2019/04/28 06:00 [pubmed] PHST- 2020/01/10 06:00 [medline] PHST- 2019/04/28 06:00 [entrez] AID - 10.1007/s13258-019-00818-6 [pii] AID - 10.1007/s13258-019-00818-6 [doi] PST - ppublish SO - Genes Genomics. 2019 Aug;41(8):879-884. doi: 10.1007/s13258-019-00818-6. Epub 2019 Apr 26.