The Oral Mucosa Immune Environment and Oral Transmission of HIV/SIV
Overview
General Surgery
Affiliations
The global spread of human immunodeficiency virus (HIV) is dependent on the ability of this virus to efficiently cross from one host to the next by traversing a mucosal membrane. Unraveling how mucosal exposure of HIV results in systemic infection is critical for the development of effective therapeutic strategies. This review focuses on understanding the immune events associated with the oral route of transmission (via breastfeeding or sexual oral intercourse), which occurs across the oral and/or gastrointestinal mucosa. Studies in both humans and simian immunodeficiency virus (SIV) monkey models have identified viral changes and immune events associated with oral HIV/SIV exposure. This review covers our current knowledge of HIV oral transmission in both infants and adults, the use of SIV models in understanding early immune events, oral immune factors that modulate HIV/SIV susceptibility (including mucosal inflammation), and interventions that may impact oral HIV transmission rates. Understanding the factors that influence oral HIV transmission will provide the foundation for developing immune therapeutic and vaccine strategies that can protect both infants and adults from oral HIV transmission.
Baratella M, Iannone V, Cavarelli M, Foglieni C, Vigano P, Moog C Front Immunol. 2023; 14:1133886.
PMID: 37033941 PMC: 10073423. DOI: 10.3389/fimmu.2023.1133886.
The Contribution of the Human Oral Microbiome to Oral Disease: A Review.
Morrison A, Sarkar S, Umar S, Lee S, Thomas S Microorganisms. 2023; 11(2).
PMID: 36838283 PMC: 9962706. DOI: 10.3390/microorganisms11020318.
Localization of infection in neonatal rhesus macaques after oral viral challenge.
Taylor R, McRaven M, Carias A, Anderson M, Matias E, Arainga M PLoS Pathog. 2021; 17(11):e1009855.
PMID: 34793582 PMC: 8639050. DOI: 10.1371/journal.ppat.1009855.
Pediatric HIV-1 Acquisition and Lifelong Consequences of Infant Infection.
Nelson C, Fouda G, Permar S Curr Immunol Rev. 2020; 15(1):131-138.
PMID: 33223981 PMC: 7678020. DOI: 10.2174/1573395514666180531074047.
Brocca-Cofano E, Xu C, Wetzel K, Cottrell M, Policicchio B, Raehtz K J Virol. 2018; 92(17).
PMID: 29925666 PMC: 6096825. DOI: 10.1128/JVI.00576-18.