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DoorlessCarp🐭's avatar

Thank you.

The deliberate contaminant dsRNA, TH2 & IgE:

Activation of Antiviral Protein Kinase Leads to Immunoglobulin E Class Switching in Human B Cells

"... Here, we provide molecular evidence for the roles of viral infection and of activation of the antiviral protein kinase (PKR) (double-stranded-RNA [dsRNA]-activated protein kinase) in the induction of IgE class switching. The presence of dsRNA, a known component of viral infection and an activator of PKR, induced IgE class switching as detected by the expression of germ line ɛ in the human Ramos B-cell line. Furthermore, dsRNA treatment of Ramos cells resulted in the activation of PKR and in vivo activation of the NF-κB complex."

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC124593/

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