L. M. Lam, J. Dobkin, K. Eckart, Ian Gereg, A. DiSalvo, Amber Nolder, Eman Anis, J. Ellis, Greg Turner, N. Mangalmurti
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Bat Red Blood Cells Express Nucleic Acid–Sensing Receptors and Bind RNA and DNA
RBCs demonstrate immunomodulatory capabilities through the expression of nucleic acid sensors. However, little is known about bat RBCs, and no studies have examined the immune function of bat erythrocytes. In this study, we show that bat RBCs express the nucleic acid–sensing TLRs TLR7 and TLR9 and bind the nucleic acid ligands, ssRNA, and CpG DNA. Collectively, these data suggest that, like human RBCs, bat erythrocytes possess immune function and may be reservoirs for nucleic acids. These findings provide unique insight into bat immunity and may uncover potential mechanisms by which virulent pathogens of humans are concealed in bats.
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