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Generation of hiPSC-derived low threshold mechanoreceptors containing axonal termini resembling bulbous sensory nerve endings and expressing Piezo1 and Piezo2

  • Shuyong Zhu*
  • , Nancy Stanslowsky
  • , Jorge Fernández-Trillo
  • , Tamrat M. Mamo
  • , Pengfei Yu
  • , Norman Kalmbach
  • , Birgit Ritter
  • , Reto Eggenschwiler
  • , Werner J.D. Ouwendijk
  • , David Mzinza
  • , Likai Tan
  • , Andreas Leffler
  • , Michael Spohn
  • , Richard J.P. Brown
  • , Kai A. Kropp
  • , Volkhard Kaever
  • , Teng Cheong Ha
  • , Pratibha Narayanan
  • , Adam Grundhoff
  • , Reinhold Förster
  • Axel Schambach, Georges M.G.M. Verjans, Manuela Schmidt, Andreas Kispert, Tobias Cantz, Ana Gomis, Florian Wegner, Abel Viejo-Borbolla*
*Corresponding author for this work
  • Hannover Medical School
  • CSIC
  • Heinrich Pette Institute - Leibniz Institute for Experimental Virology
  • Paul-Ehrlich-Institut
  • Max Planck Institute of Experimental Medicine
  • Harvard Medical School

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)
150 Downloads (Pure)

Abstract

Somatosensory low threshold mechanoreceptors (LTMRs) sense innocuous mechanical forces, largely through specialized axon termini termed sensory nerve endings, where the mechanotransduction process initiates upon activation of mechanotransducers. In humans, a subset of sensory nerve endings is enlarged, forming bulb-like expansions, termed bulbous nerve endings. There is no in vitro human model to study these neuronal endings. Piezo2 is the main mechanotransducer found in LTMRs. Recent evidence shows that Piezo1, the other mechanotransducer considered absent in dorsal root ganglia (DRG), is expressed at low level in somatosensory neurons. We established a differentiation protocol to generate, from iPSC-derived neuronal precursor cells, human LTMR recapitulating bulbous sensory nerve endings and heterogeneous expression of Piezo1 and Piezo2. The derived neurons express LTMR-specific genes, convert mechanical stimuli into electrical signals and have specialized axon termini that morphologically resemble bulbous nerve endings. Piezo2 is concentrated within these enlarged axon termini. Some derived neurons express low level Piezo1, and a subset co-express both channels. Thus, we generated a unique, iPSCs-derived human model that can be used to investigate the physiology of bulbous sensory nerve endings, and the role of Piezo1 and 2 during mechanosensation.

Original languageEnglish
Article number102535
JournalStem Cell Research
Volume56
DOIs
Publication statusPublished - Oct 2021

Bibliographical note

Funding Information:
This work was supported by N-RENNT of the Ministry of Science and Culture of Lower Saxony to A.V.B., by a Marie Curie Career Integration Grant to A.V.B. (FP7-PEOPLE-2013-CIG, project number 631792, acronym INMA), by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC 2155 “RESIST” – Project ID 39087428, by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - SFB-900 – 158989968 to R.F. (B1) and A.V.B. (B9), and by a Spanish Government project to A.G. (PID2019-108194RB-I00).

Funding Information:
We thank Ulrich Martin and Alexandra Haase (LEBAO, Hannover Medical School) for providing the iPSC line. We are thankful to Annette Garbe for performing LC-MS/MS quantification of neurotransmitters. We thank Martin Messerle (Hannover Medical School) for the ARPE-19 cells. We thank Emanuel Wyler (Max-Delbr?ck-Center for Molecular Medicine), Simon Krooss, Jens Bohne and Beate Sodeik (Hannover Medical School) for scientific advice. We thank Rudolf Bauerfeind, Michaela Kreienmeyer (Hannover Medical School) and Erik von Stedingk (BITPLANE), for technical support and Thomas Schulz (Hannover Medical School) for providing reagents. We are thankful to the Netherlands Brain Bank, Netherlands Institute for Neuroscience, Amsterdam, for providing the brain samples and bio samples. We are thankful to Miguel A. Valverde (Universitat Pompeu Fabra, Spain) for the pLKO1-Piezo2 shRNA and pLKO1-scramble shRNA plasmids. The raw and processed RNA-seq data has been submitted to Gene Expression Omnibus (GEO) as a GEO project and will be openly available.

Publisher Copyright:
© 2021 The Author(s)

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