PMID- 29854282 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240326 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 9 IP - 32 DP - 2018 Apr 27 TI - LSCC SNP variant regulates SOX2 modulation of VDAC3. PG - 22340-22352 LID - 10.18632/oncotarget.24918 [doi] AB - Lung squamous cell carcinoma (LSCC) is a genomically complex malignancy with no effective treatments. Recent studies have found a large number of DNA alterations such as SOX2 amplification in LSCC patients. As a stem cell transcription factor, SOX2 is important for the maintenance of pluripotent cells and may play a role in cancer. To study the downstream mechanisms of SOX2, we employed expression quantitative trait loci (eQTLs) technology to investigate how the presence of SOX2 affects the expression of target genes. We discovered unique eQTLs, such as rs798827-VDAC3 (FDR p-value = 0.0034), that are only found in SOX2-active patients but not in SOX2-inactive patients. SNP rs798827 is within strong linkage disequilibrium (r(2) = 1) to rs58163073, where rs58163073 [T] allele increases the binding affinity of SOX2 and allele [TA] decreases it. In our analysis, SOX2 silencing downregulates VDAC3 in two LSCC cell lines. Chromatin conformation capturing data indicates that this SNP is located within the same Topologically Associating Domain (TAD) of VDAC3, further suggesting SOX2's role in the regulation of VDAC3 through the binding of rs58163073. By first subgrouping patients based on SOX2 activity, we made more relevant eQTL discoveries and our analysis can be applied to other diseases. FAU - Chyr, Jacqueline AU - Chyr J AD - Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA. AD - School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX 77030, USA. FAU - Guo, Dongmin AU - Guo D AD - Center for Bioinformatics and Systems Biology, Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA. FAU - Zhou, Xiaobo AU - Zhou X AD - Center for Bioinformatics and Systems Biology, Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA. AD - School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX 77030, USA. LA - eng GR - R01 GM123037/GM/NIGMS NIH HHS/United States GR - U01 AR069395/AR/NIAMS NIH HHS/United States GR - U01 CA166886/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20180427 PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 PMC - PMC5976468 OTO - NOTNLM OT - SNP OT - SOX2 OT - eQTL OT - lung cancer OT - topologically associating domain COIS- CONFLICTS OF INTEREST The authors declare no conflicts of interest. EDAT- 2018/06/02 06:00 MHDA- 2018/06/02 06:01 PMCR- 2018/04/27 CRDT- 2018/06/02 06:00 PHST- 2017/06/21 00:00 [received] PHST- 2018/02/28 00:00 [accepted] PHST- 2018/06/02 06:00 [entrez] PHST- 2018/06/02 06:00 [pubmed] PHST- 2018/06/02 06:01 [medline] PHST- 2018/04/27 00:00 [pmc-release] AID - 24918 [pii] AID - 10.18632/oncotarget.24918 [doi] PST - epublish SO - Oncotarget. 2018 Apr 27;9(32):22340-22352. doi: 10.18632/oncotarget.24918. eCollection 2018 Apr 27.