PMID- 33997905 OWN - NLM STAT- MEDLINE DCOM- 20220325 LR - 20220325 IS - 1460-2083 (Electronic) IS - 0964-6906 (Linking) VI - 30 IP - 15 DP - 2021 Jul 9 TI - Modeling gap junction beta 2 gene-related deafness with human iPSC. PG - 1429-1442 LID - 10.1093/hmg/ddab097 [doi] AB - There are >120 forms of non-syndromic deafness associated with identified genetic loci. In particular, mutation of the gap junction beta 2 gene (GJB2), which encodes connexin (CX)26 protein, is the most frequent cause of hereditary deafness worldwide. We previously described an induction method to develop functional CX26 gap junction-forming cells from mouse-induced pluripotent stem cells (iPSCs) and generated in vitro models for GJB2-related deafness. However, functional CX26 gap junction-forming cells derived from human iPSCs or embryonic stem cells (ESCs) have not yet been reported. In this study, we generated human iPSC-derived functional CX26 gap junction-forming cells (iCX26GJCs), which have the characteristics of cochlear supporting cells. These iCX26GJCs had gap junction plaque-like formations at cell-cell borders and co-expressed several markers that are expressed in cochlear supporting cells. Furthermore, we generated iCX26GJCs derived from iPSCs from two patients with the most common GJB2 mutation in Asia, and these cells reproduced the pathology of GJB2-related deafness. These in vitro models may be useful for establishing optimal therapies and drug screening for various mutations in GJB2-related deafness. CI - (c) The Author(s) 2021. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Fukunaga, Ichiro AU - Fukunaga I AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Oe, Yoko AU - Oe Y AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Danzaki, Keiko AU - Danzaki K AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Ohta, Sayaka AU - Ohta S AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Chen, Cheng AU - Chen C AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Shirai, Kyoko AU - Shirai K AD - Department of Otolaryngology, Head and Neck Surgery, Tokyo Medical University, Tokyo 1600023, Japan. FAU - Kawano, Atsushi AU - Kawano A AD - Department of Otolaryngology, Head and Neck Surgery, Tokyo Medical University, Tokyo 1600023, Japan. FAU - Ikeda, Katsuhisa AU - Ikeda K AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. FAU - Kamiya, Kazusaku AU - Kamiya K AD - Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, Tokyo 1138421, Japan. LA - eng PT - Journal Article PL - England TA - Hum Mol Genet JT - Human molecular genetics JID - 9208958 RN - 0 (Connexins) RN - 0 (GJB2 protein, human) RN - 127120-53-0 (Connexin 26) SB - IM MH - Cochlea/metabolism MH - Connexin 26/genetics/*metabolism MH - Connexins/genetics MH - Deafness/*genetics/metabolism MH - Gap Junctions/*genetics MH - Hearing Loss, Sensorineural/genetics MH - Humans MH - Induced Pluripotent Stem Cells/metabolism MH - Models, Biological MH - Mutation EDAT- 2021/05/18 06:00 MHDA- 2022/03/26 06:00 CRDT- 2021/05/17 06:29 PHST- 2020/08/21 00:00 [received] PHST- 2021/03/29 00:00 [revised] PHST- 2021/03/31 00:00 [accepted] PHST- 2021/05/18 06:00 [pubmed] PHST- 2022/03/26 06:00 [medline] PHST- 2021/05/17 06:29 [entrez] AID - 6276067 [pii] AID - 10.1093/hmg/ddab097 [doi] PST - ppublish SO - Hum Mol Genet. 2021 Jul 9;30(15):1429-1442. doi: 10.1093/hmg/ddab097.