PMID- 31981812 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20221207 IS - 1532-2777 (Electronic) IS - 0306-9877 (Linking) VI - 137 DP - 2020 Apr TI - TINAG mutation as a genetic cause of pectus excavatum. PG - 109557 LID - S0306-9877(19)31255-1 [pii] LID - 10.1016/j.mehy.2020.109557 [doi] AB - To investigate the possible involvement of germline mutations in pectus excavatum (PE). We investigated a four-generation pedigree with PE. Whole-exome sequencing (WES)was performed to identify potential mutations for PE formation. Sanger sequencing was used to validate these mutations. hFOB1.19 cell proliferation was measured with a Celigo imaging cytometry system. There were four PE patients in this four-generation pedigree. In the four patients, we identified a novel heterozygous stop-gain variant in Tubulointerstitial Nephritis Antigen (TINAG) through exome sequencing: c.G2A, p.W2*. This mutation was validated by Sanger sequencing. Knockdown of TINAG inhibited the proliferation of hFOB1.19 cells. Based on these results, we hypothesize that the TINAG c.G2A mutation is a loss-of-functionmutationthat reduces TINAG expression. Increasing TINAG warrants further investigation as a potential novel anabolic mechanism of PE treatment. CI - Copyright (c) 2020 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Tong, Xing AU - Tong X AD - Department of Pathology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Li, Guangbin AU - Li G AD - Department of Thoracic Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. FAU - Feng, Yu AU - Feng Y AD - Department of Thoracic Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China. Electronic address: fengyu1@suda.edu.cn. LA - eng PT - Journal Article DEP - 20200108 PL - United States TA - Med Hypotheses JT - Medical hypotheses JID - 7505668 RN - 0 (Cell Adhesion Molecules) RN - 0 (TINAG protein, human) SB - IM MH - Cell Adhesion Molecules/*genetics MH - *Funnel Chest/genetics MH - Heterozygote MH - Humans MH - Mutation MH - Pedigree MH - Exome Sequencing OTO - NOTNLM OT - Mutation OT - Pectus excavatum OT - TINAG OT - Whole-exome sequencing EDAT- 2020/01/26 06:00 MHDA- 2021/05/15 06:00 CRDT- 2020/01/26 06:00 PHST- 2019/12/16 00:00 [received] PHST- 2020/01/05 00:00 [accepted] PHST- 2020/01/26 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/01/26 06:00 [entrez] AID - S0306-9877(19)31255-1 [pii] AID - 10.1016/j.mehy.2020.109557 [doi] PST - ppublish SO - Med Hypotheses. 2020 Apr;137:109557. doi: 10.1016/j.mehy.2020.109557. Epub 2020 Jan 8.