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Current HIV Research


ISSN (Print): 1570-162X
ISSN (Online): 1873-4251

Risk of Vertical HIV Transmission Combines the ‘B35-Cw4 Disadvantage’ and the ‘Pattern of Inheritance’ Theories of Progression

Author(s): Antonio Arnaiz-Villena, Jose Manuel Martin-Villa, Jose Tomas Ramos Amador, Almudena Cendoya-Matamoros, Maria Isabel Gonzalez Tome, Jose Maria Rivera and Narcisa Martinez-Quiles

Volume 7, Issue 3, 2009

Page: [314 - 319] Pages: 6

DOI: 10.2174/157016209788348029

Price: $65


Mother-to-child transmission during pregnancy provides a unique system for studying the correlation between HLA phenotype and susceptibility to HIV infection. We studied this relationship in a Spanish cohort. We determined frequencies of HLA class I and II alleles in 120 infants born to HIV-infected mothers and 67 HIV-infected mothers. Although there was no statistical difference in the frequency of HLA-B35 between transmitting and non-transmitting mothers, the allele was more frequent in infected children than in uninfected children. HLA-B35 has been consistently reported as a risk factor in the progression to AIDS. In addition, it has been proposed that whether a given allele can confer susceptibility to, or protection against, progression depends on maternal versus paternal inheritance patterns, since the child inherits a virus that reflects the history of CTL encounters of the mother. Our results on vertical HIV transmission combine for the first time the ‘HLA-B35 disadvantage’ and the ‘pattern of inheritance’ theories.

Keywords: HLA disadvantage, HIV vertical infection, Major Histocompatibility complex, pattern of inheritance, progression to AIDS

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