High-Resolution HLA-A Typing in Normal Iranian Population

Area of Science:

• Immunogenetics
• Population genetics
• Molecular biology

Background:

• Human Leukocyte Antigen (HLA) genes are highly polymorphic and crucial for transplantation matching.
• Establishing HLA registries is essential for identifying compatible donors for patients.
• Understanding HLA allele distribution across diverse populations is vital for effective donor selection.

Purpose of the Study:

• To determine the Human Leukocyte Antigen (HLA) -A allele frequencies in an unrelated Iranian population.
• To provide foundational data for the development of national HLA registries and cord blood banks in Iran.

Main Methods:

• Sequence-based typing was employed for HLA-A locus analysis.
• Polymerase Chain Reaction (PCR) amplification followed by Sanger sequencing was performed.
• Bioinformatic software was utilized for sequence analysis and allele identification.

Main Results:

• The most frequent Human Leukocyte Antigen (HLA) -A alleles identified were A*02:01 (13%) and A*24:02 (12%).
• Several alleles, including A*01:14 and A*02:05, exhibited the lowest frequencies at 1%.

Conclusions:

• This research presents the first report on Human Leukocyte Antigen (HLA) -A allele-level typing in a randomized Iranian population.
• The data generated is valuable for establishing national registries of HLA-typed volunteer marrow donors and local cord blood banks in Iran.