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Updated: Dec 16, 2025
Author Spotlight: Manipulating Signaling in Zebrafish Embryos to Decode Cell Fate Decisions
Published on: October 27, 2023
The signaling protein CD38 is essential for early embryonic development
Dev Churamani1, Timothy J Geach, Latha Ramakrishnan
1Department of Cell and Developmental Biology, University College London, Anatomy Building, Gower Street, London WC1E 6BT, United Kingdom.
The study reveals that CD38 (an ADP-ribosyl cyclase) is crucial for embryonic development in Xenopus laevis. Inhibiting CD38 disrupts key developmental processes, leading to embryonic death, highlighting its essential regulatory role.
Area of Science:
- Developmental Biology
- Molecular Biology
- Biochemistry
Background:
- CD38 is a multifunctional protein with ADP-ribosyl cyclase activity, involved in calcium signaling.
- Known roles of CD38 include immune responses and insulin secretion, but its embryonic function is unknown.
Purpose of the Study:
- To identify and functionally characterize CD38 in Xenopus laevis, a model for vertebrate development.
- To investigate the role of CD38 during embryonic development.
Main Methods:
- Identification and functional expression of Xenopus laevis CD38.
- Analysis of CD38 expression and ADP-ribosyl cyclase activity during development.
- Chemical and molecular inhibition of CD38 activity.
Main Results:
- CD38 expression and ADP-ribosyl cyclase activity are developmentally regulated.
- Inhibition of CD38 disrupted anterior-posterior axis elongation and skeletal muscle differentiation.
- CD38 inhibition led to embryonic lethality.
Conclusions:
- CD38 plays a critical, previously unrecognized role in vertebrate embryonic development.
- ADP-ribosyl cyclase activity mediated by CD38 is essential for normal embryogenesis.
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