This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Introduction:
Our aim was to determine whether liposomal formulations of short interfering RNA are able to be absorbed by cervicovaginal mucosa in vivo after their local instillation. Methods: The menstrual cycle of the animals were synchronized with progesterone. Two weeks later, we complexed siRNA targeting CCR5 with liposomes. Cervicovaginal tissue was evaluated at variable intervals after administration. We are now assessing CCR5 expression by IHC and PCR. Baseline samples will be compared with those obtained after treatment. In this manner, we will determine whether siRNA can be further developed as a microbicidal drug capable of preventing the mucosal transmission of H
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