Abstract:
:Human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) strategies with proven in vivo efficacy rely on antiretroviral drugs, creating the potential for drug resistance and complicated treatment options in individuals who become infected. Moreover, on-demand products are currently missing from the PrEP development portfolio. Griffithsin (GRFT) is a non-antiretroviral HIV entry inhibitor derived from red algae with an excellent safety profile and potent activity in vitro. When combined with carrageenan (CG), GRFT has strong activity against herpes simplex virus-2 (HSV-2) and human papillomavirus (HPV) in vitro and in vivo. Here, we report that GRFT/CG in a freeze-dried fast dissolving insert (FDI) formulation for on-demand use protects rhesus macaques from a high dose vaginal SHIV SF162P3 challenge 4 h after FDI insertion. Furthermore, the GRFT/CG FDI also protects mice vaginally against HSV-2 and HPV pseudovirus. As a safe, potent, broad-spectrum, on-demand non-antiretroviral product, the GRFT/CG FDI warrants clinical development.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Derby N,Lal M,Aravantinou M,Kizima L,Barnable P,Rodriguez A,Lai M,Wesenberg A,Ugaonkar S,Levendosky K,Mizenina O,Kleinbeck K,Lifson JD,Peet MM,Lloyd Z,Benson M,Heneine W,O'Keefe BR,Robbiani M,Martinelli E,Graspergdoi
10.1038/s41467-018-06349-0subject
Has Abstractpub_date
2018-09-24 00:00:00pages
3881issue
1issn
2041-1723pii
10.1038/s41467-018-06349-0journal_volume
9pub_type
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