Study of Endogenous CRAC Channels in Human Mast Cells Using an Adenoviral Delivery System to Transduce Cells with Orai-Targeting shRNAs or with cDNAs Expressing Dominant-Negative Orai Channel Mutations.

Abstract excerpt

We describe two methods to study CRAC channel function in human lung mast cells. Both methods involve suppression of endogenous channel function. In the first we use Orai-targeting shRNAs to knock down Orai channel mRNA transcripts. In the second we overexpress dominant-negative mutants of the three members of the Orai channel family. To overcome the poor transfection efficiency of mast cells, we employ an...

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