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Johnson Chacko L, Lahlou H, Steinacher C, Assou S, Messat Y, Dudás J, Edge A, Crespo B, Crosier M, Sergi C, Schrott-Fischer A, Zine A. Transcriptome-Wide Analysis Reveals a Role for Extracellular Matrix and Integrin Receptor Genes in Otic Neurosensory Differentiation from Human iPSCs. Int J Mol Sci 2021; 22:10849. [PMID: 34639189 PMCID: PMC8509699 DOI: 10.3390/ijms221910849] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/24/2021] [Accepted: 09/29/2021] [Indexed: 12/27/2022] Open
Abstract
We analyzed transcriptomic data from otic sensory cells differentiated from human induced pluripotent stem cells (hiPSCs) by a previously described method to gain new insights into the early human otic neurosensory lineage. We identified genes and biological networks not previously described to occur in the human otic sensory developmental cell lineage. These analyses identified and ranked genes known to be part of the otic sensory lineage program (SIX1, EYA1, GATA3, etc.), in addition to a number of novel genes encoding extracellular matrix (ECM) (COL3A1, COL5A2, DCN, etc.) and integrin (ITG) receptors (ITGAV, ITGA4, ITGA) for ECM molecules. The results were confirmed by quantitative PCR analysis of a comprehensive panel of genes differentially expressed during the time course of hiPSC differentiation in vitro. Immunocytochemistry validated results for select otic and ECM/ITG gene markers in the in vivo human fetal inner ear. Our screen shows ECM and ITG gene expression changes coincident with hiPSC differentiation towards human otic neurosensory cells. Our findings suggest a critical role of ECM-ITG interactions with otic neurosensory lineage genes in early neurosensory development and cell fate determination in the human fetal inner ear.
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Affiliation(s)
- Lejo Johnson Chacko
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (L.J.C.); (C.S.); (J.D.)
| | - Hanae Lahlou
- Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA 02101, USA; (H.L.); (A.E.)
| | - Claudia Steinacher
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (L.J.C.); (C.S.); (J.D.)
| | - Said Assou
- IRMB, Univ Montpellier, INSERM, CHU Montpellier, 34000 Montpellier, France;
| | - Yassine Messat
- LBN, Laboratory of Bioengineering and Nanoscience, Univ Montpellier, 34090 Montpellier, France;
| | - József Dudás
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (L.J.C.); (C.S.); (J.D.)
| | - Albert Edge
- Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA 02101, USA; (H.L.); (A.E.)
| | - Berta Crespo
- UCL Great Ormond Street Institute of Child Health, University College London, London WC1 N1EH, UK;
| | - Moira Crosier
- Human Development Biology Resource, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle NE1 4EP, UK;
| | - Consolato Sergi
- Anatomic Pathology Division, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON K1H 8L1, Canada;
| | - Anneliese Schrott-Fischer
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (L.J.C.); (C.S.); (J.D.)
| | - Azel Zine
- LBN, Laboratory of Bioengineering and Nanoscience, Univ Montpellier, 34090 Montpellier, France;
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