PMID- 29703252 OWN - NLM STAT- MEDLINE DCOM- 20181127 LR - 20181127 IS - 1471-2407 (Electronic) IS - 1471-2407 (Linking) VI - 18 IP - 1 DP - 2018 Apr 27 TI - Investigation of the SLC22A23 gene in laryngeal squamous cell carcinoma. PG - 477 LID - 10.1186/s12885-018-4381-y [doi] LID - 477 AB - BACKGROUND: Laryngeal squamous cell carcinoma (LSCC) is the second most common cancer of the head and neck. In order to identify differentially expressed genes which may have a role in LSCC carcinogenesis, we performed GeneFishing Assay. One of the differentially expressed genes was the SLC22A23 (solute carrier family 22, member 23) gene. SLC22A23 belongs to a family of organic ion transporters that are responsible for the absorption or excretion of many drugs, xenobiotics and endogenous compounds in a variety of tissues. SLC22A23 is expressed in a various tissues but no substrates or functions have been identified for it. Although the exact function is unknown, single nucleotide polymorphisms (SNPs) which are located in SLC22A23 gene were associated with inflammatory bowel disease (IBD), endometriosis-related infertility and the clearance of antipsychotic drugs. On the other hand SLC22A23 is identified as a prognostic gene to predict the recurrence of triple-negative breast cancer. METHODS: To understand the role of the SLC22A23 gene in laryngeal carcinogenesis, we investigated its mRNA expression level in laryngeal tumor tissue and adjacent non-cancerous tissue samples obtained from 83 patients by quantitative real-time PCR. To understand the association between SNPs in SLC22A23 and LSCC, selected genetic variations (rs4959235, rs6923667, rs9503518) were genotyped. RESULTS: We found that SLC22A23 expression was increased in 46 of 83 tumor tissues (55.4%) and was decreased in 30 of 83 (36.1%) tumor tissues compared to normal tissues. 77.2% of patients were homozygote for genotype rs9503518-AA and they most frequently had histological grade 2 and 3 tumors. We also found that rs9503518-AA genotype is associated with increased SLC22A23 expression. CONCLUSIONS: Our results indicate that SLC22A23 may play a role in the development of laryngeal cancer. FAU - Ekizoglu, Seda AU - Ekizoglu S AD - Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul University, Kocamustafapasa, 34098, Istanbul, Turkey. FAU - Seven, Didem AU - Seven D AD - Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul University, Kocamustafapasa, 34098, Istanbul, Turkey. FAU - Ulutin, Turgut AU - Ulutin T AD - Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul University, Kocamustafapasa, 34098, Istanbul, Turkey. FAU - Guliyev, Jalal AU - Guliyev J AD - Cerrahpasa Medical Faculty, Department of Otorhinolaryngology, Istanbul University, Istanbul, Turkey. FAU - Buyru, Nur AU - Buyru N AD - Cerrahpasa Medical Faculty, Department of Medical Biology, Istanbul University, Kocamustafapasa, 34098, Istanbul, Turkey. nbuyru@yahoo.com. LA - eng GR - 49005/Bilimsel Arastirma Projeleri Birimi, Istanbul Universitesi/International GR - 24305/Bilimsel Arastirma Projeleri Birimi, Istanbul Universitesi/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180427 PL - England TA - BMC Cancer JT - BMC cancer JID - 100967800 RN - 0 (Organic Anion Transporters) RN - 0 (SLC22A23 protein, human) SB - IM MH - Aged MH - Alleles MH - Carcinoma, Squamous Cell/*genetics/pathology MH - Female MH - Gene Expression Profiling MH - *Gene Expression Regulation, Neoplastic MH - Gene Frequency MH - Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Laryngeal Neoplasms/*genetics/pathology MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Staging MH - Organic Anion Transporters/*genetics MH - Polymorphism, Single Nucleotide MH - Reproducibility of Results PMC - PMC5921549 OTO - NOTNLM OT - Expression OT - GeneFishing OT - Genotyping OT - Laryngeal cancer OT - SLC22A23 COIS- ETHICS APPROVAL AND CONSENT TO PARTICIPATE: The study was approved by the Cerrahpasa Medical Faculty Ethics Committee (Approval number: 83045809/604.01/02-235,918), and has been performed in accordance with the ethical standarts laid down in the 2013 Declaration of Helsinki. Signed informed consent was obtained from all patients included in the study. COMPETING INTERESTS: The authors declare that they have no competing interest. PUBLISHER'S NOTE: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2018/04/29 06:00 MHDA- 2018/11/28 06:00 PMCR- 2018/04/27 CRDT- 2018/04/29 06:00 PHST- 2017/03/07 00:00 [received] PHST- 2018/04/17 00:00 [accepted] PHST- 2018/04/29 06:00 [entrez] PHST- 2018/04/29 06:00 [pubmed] PHST- 2018/11/28 06:00 [medline] PHST- 2018/04/27 00:00 [pmc-release] AID - 10.1186/s12885-018-4381-y [pii] AID - 4381 [pii] AID - 10.1186/s12885-018-4381-y [doi] PST - epublish SO - BMC Cancer. 2018 Apr 27;18(1):477. doi: 10.1186/s12885-018-4381-y.