Abstract
About 90% of people infected with Human T lymphotropic virus type-1 (HTLV-1) virus are asymptomatic, so it can be said that the prevalence of this virus is not completely clear. During chronic infection, the expression of programmed cell death-1 (PD-1) protein increases and causes exhausted phenotype in T cells. Considering the role of host genetics and immune responses in HTLV-1 infection, in this case–control study, included 81 asymptomatic carriers (ACs) and 162 healthy controls (HCs), rs11568821 and rs41386349 polymorphisms of PD-1 gene were evaluated by Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method which investigated by one primer pair for both polymorphisms also, proviral load (PVL) measured by quantitative real-time PCR (Q-RT-PCR). The results showed that the mutant allele of rs11568821 (A) and rs41386349 (T) polymorphisms is associated with an increase in HTLV-1 infection significantly (p = 0.019 and p = 0.000 respectively). But there was no significant relationship between PVL and polymorphisms.
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Abbreviations
- ACs:
-
Asymptomatic carriers
- ATL:
-
Adult-T-cell Leukemia
- GAPDH:
-
Glyceraldehyde 3-phosphate dehydrogenase
- HAM:
-
HTLV-1associated myelopathy
- HBV:
-
Hepatitis B virus
- HBZ:
-
HTLV-1 basic leucine zipper protein
- HCs:
-
Healthy controls
- HCV:
-
Hepatitis C virus
- HTLV-1:
-
Human T lymphotropic virus type-1
- PBMCs:
-
Peripheral blood mononuclear cells
- PCR-RFLP:
-
Restriction fragment length polymorphism-PCR
- PD-1:
-
Programmed cell death -1
- PVL:
-
Proviral load
- RUNX-1:
-
Runt-related transcriptional factor 1
- Q-RT-PCR:
-
Quantitative real-time PCR
- TAX:
-
Transactivator protein
- Tregs:
-
Regulatory T cells
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We gratefully appreciate the financial and counsel support of the virology lab of High Institute for Research and Education in Transfusion Medicine, Blood Transfusion Research Center
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Hezave, Y.A., Sharifi, Z. & Kermani, F.R. Analysis of Programmed Cell Death-1 (PD-1) Gene Variations (re11568821 and rs41386349) in HTLV-1 Infection Using One Primer Pair and Proviral Load. J Mol Evol 91, 562–566 (2023). https://doi.org/10.1007/s00239-023-10104-5
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DOI: https://doi.org/10.1007/s00239-023-10104-5