eISSN: 1732-2707
ISSN: 1730-1270
HIV & AIDS Review. International Journal of HIV-Related Problems
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2/2016
vol. 15
 
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abstract:
Case report

Genetic diagnosis of seronegative (HIV−) partner of female patient with AIDS in the context of HIV transmission

Katarzyna Zwolińska
,
Katarzyna Fleischer-Stępniewska
,
Brygida Knysz
,
Olga Błachowicz
,
Egbert Piasecki

Volume 15, Issue 2, 2016, Pages 97–100
Online publish date: 2016/06/27
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Aim

Complex genetic diagnosis of seronegative (HIV−) long-term partner of female patient with AIDS C3 in the context of HIV transmission. Case report and literature review.



Background

HIV infection was excluded in 47-year-old man, a long-term sexual partner of female patient diagnosed with AIDS C3. The risk of HIV infection was estimated as high.



Objective

We focused on the genetic diagnosis of serodiscordant couple. We determined the presence of CCR5-Δ32, CCR2-64I, HLA-B, killer cell immunoglobulin-like receptor (KIR) and their ligand genes and human endogenous retroviruses K113 and K115.



Methods

Genotyping was performed using PCR methods.



Results

Analysis of partner's genotype revealed the presence of CCR5-Δ32/Δ32 and KIR genes encoding activating receptors (KIR2DS1, 2DS5, 3DS1), features associated with reduced risk of HIV transmission. Similarities in patient's and her partner's HLA (HLA-B*51) and similar inhibitory KIR repertoire and their ligands (KIR2DL1+HLA-C2, KIR2DL3+HLA-C1, KIR3DL1+HLA-B Bw4-80Ile) could favor the transmission of the virus.



Conclusion

Genetic diagnosis is not routinely recommended, observation of exposed and uninfected individuals would allow to implement new knowledge into more effective care.
keywords:

CCR5-Δ32; HIV transmission; HLA-B; Killer cell immunoglobulin-like receptors

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