Abstract
We have synthesized BiNiX, a caged methylxanthine agonist for the ryanodine receptor (RyR)the major calcium channel that mediates Ca2+ release from intracellular Ca2+ stores in electrically excitable cells. BiNiX is easily loaded into living cells through incubation with its acetoxymethyl (AM) ester. Delivery of focused UV light pulses to the loaded cell releases paraxanthine focally and rapidly to activate RyRs to release Ca2+, thus elevating intracellular Ca2+ concentration to initiate Ca2+-dependent signaling cascades. We demonstrate the biological utility of BiNiX in heart muscle cells by showing that local intracellular photolysis of BiNiX triggers Ca2+ release and consequent muscle contraction.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
