4.7 Review

Optimizing Calcium Detection Methods in Animal Systems: A Sandbox for Synthetic Biology

Journal

BIOMOLECULES
Volume 11, Issue 3, Pages -

Publisher

MDPI
DOI: 10.3390/biom11030343

Keywords

calcium imaging; calcium indicators; synthetic biology; GECI; calcium dyes

Funding

  1. National Institutes of Health [1R15HD096415-01]

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Novel methods for calcium ion detection have diverse applications in vitro and in vivo, especially when matched with advances in fluorescence imaging techniques. The limitations presented by organic calcium dyes, genetically encoded calcium indicators, and calcium-responsive nanoparticles suggest a potential path for more rapid optimization using a synthetic biology approach. This engineering-oriented discipline can offer a promising toolkit for interfacing with calcium signaling in eukaryotic systems.
Since the 1970s, the emergence and expansion of novel methods for calcium ion (Ca2+) detection have found diverse applications in vitro and in vivo across a series of model animal systems. Matched with advances in fluorescence imaging techniques, the improvements in the functional range and stability of various calcium indicators have significantly enhanced more accurate study of intracellular Ca2+ dynamics and its effects on cell signaling, growth, differentiation, and regulation. Nonetheless, the current limitations broadly presented by organic calcium dyes, genetically encoded calcium indicators, and calcium-responsive nanoparticles suggest a potential path toward more rapid optimization by taking advantage of a synthetic biology approach. This engineering-oriented discipline applies principles of modularity and standardization to redesign and interrogate endogenous biological systems. This review will elucidate how novel synthetic biology technologies constructed for eukaryotic systems can offer a promising toolkit for interfacing with calcium signaling and overcoming barriers in order to accelerate the process of Ca2+ detection optimization.

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