Ca(2+) coding and decoding strategies for the specification of neural and renal precursor cells during development

Area of Science:

• Developmental Biology
• Cell Signaling
• Molecular Biology

Background:

• Intracellular calcium (Ca2+) rise is a known trigger for stem cell differentiation.
• Precise Ca2+ signaling mechanisms in pleiotropic developmental effects remain poorly understood.

Purpose of the Study:

• To compare Ca2+ signaling events in neural determination (neural induction) and kidney development (nephrogenesis).
• To elucidate the role of Ca2+ influx and transients in precursor cell determination and differentiation.

Main Methods:

• Comparative analysis of Ca2+ signaling pathways in neural and kidney development.
• Identification of Ca2+ target genes in neural induction.
• Investigation of Kcnip family proteins in Ca2+-mediated transcriptional control.

Main Results:

• Ca2+ influx and transients are necessary and sufficient for neural and renal precursor determination and differentiation.
• New Ca2+ target genes identified in neural induction are also present in the pronephros.
• A mechanism involving Kcnip family proteins links Ca2+ signaling to transcriptional control in neurogenesis and nephrogenesis.

Conclusions:

• Ca2+ signaling plays a versatile role as a second messenger in diverse developmental processes like neurogenesis and nephrogenesis.
• The Kcnip family mediates direct transcriptional control by Ca2+ signaling during development.
• Understanding Ca2+ dynamics is key to deciphering stem cell fate determination.