Gravity changes during animal development affect IgM heavy-chain transcription and probably lymphopoiesis

Research output: Contribution to journalArticle

Authors

  • Cécile Huin-Schohn
  • Nathan Guéguinou
  • Véronique Schenten
  • Matthieu Bascove
  • Guillemette Gauquelin Koch
  • Sarah Baatout
  • Eric Tschirhart
  • Jean-Pol Frippiat

Institutes & Expert groups

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DOI

Abstract

Our previous research demonstrated that spaceflight conditions affect antibody production in response to an antigenic stimulation in adult amphibians. Here, we investigated whether antibody synthesis is affected when animal development occurs onboard a space station. To answer this question, embryos of the Iberian ribbed newt, Pleurodeles waltl, were sent to the International Space Station (ISS) before the initiation of immunoglobulin heavy-chain expression. Thus, antibody synthesis began in space. On landing, we determined the effects of spaceflight on P. waltl development and IgM heavy-chain transcription. Results were compared with those obtained using embryos that developed on Earth. We find that IgM heavy-chain transcription is doubled at landing and that spaceflight does not affect P. waltl development and does not induce inflammation. We also recreated the environmental modifications encountered by the embryos during their development onboard the ISS. This strategy allowed us to demonstrate that gravity change is the factor responsible for antibody heavy-chain transcription modifications that are associated with NF-_B mRNA level variations. Taken together, and given that the larvae were not immunized, these data suggest a modification of lymphopoiesis when gravity changes occur during ontogeny.

Details

Original languageEnglish
Pages (from-to)333-341
JournalThe FASEB Journal
Volume27
Issue number1
DOIs
Publication statusPublished - Jan 2013

Keywords

  • humoral immune system, antibody, B lymphocyte

ID: 122197