HLA - A B DR Loci Typing by PCR (Donor & Recipient)

What is HLA - A B DR Loci Typing PCR Duo test?

HLA - A B DR Loci Typing PCR Duo test determines a person’s HLA types at three key loci—Class I (HLA‑A, HLA‑B) and Class II (HLA‑DR, typically DRB1). “PCR Duo” typically implies testing a pair of individuals (e.g., a potential donor–recipient duo) or running two loci sets in a streamlined workflow, to quickly establish compatibility at HLA‑A, ‑B, and ‑DR for clinical decision-making.

Why consider HLA - A B DR Loci Typing PCR Duo test?

The HLA-A, B, and DR loci typing PCR Duo test is crucial for organ and bone marrow transplants as it helps identify compatible donors and recipients by matching human leukocyte antigens (HLAs). This matching minimizes the risk of graft rejection and improves the success rate of transplants.

• Matching at HLA‑A, ‑B, and ‑DR is central to transplant compatibility, with fewer mismatches generally linked to better graft outcomes in kidney transplantation; HLA‑DR matching is particularly impactful in many datasets.

• PCR‑based typing supports timely virtual crossmatch by providing donor HLA types that can be compared against a recipient’s HLA antibody profile, accelerating decisions and organ allocation while mitigating immunologic risk.
• While high‑resolution (two‑field) typing improves precision and donor‑specific antibody assessment, rapid PCR‑SSP at A/B/DR remains useful for initial matching, urgent decisions, and confirmation steps in many labs.

Who should get tested for HLA - A B DR Loci Typing PCR Duo test?

• Solid-organ transplant candidates and their potential living donors who need timely HLA matching information at A, B, and DR to guide compatibility and allocation decisions.
• Deceased-donor transplant workflows requiring prompt donor typing at critical loci (A, B, DR) to enable virtual crossmatch and rapid recipient selection.
• Centers performing preliminary or confirmatory HLA typing where PCR‑SSP-based, low/intermediate‑resolution results at A/B/DR are operationally advantageous, with escalation to high‑resolution as needed.

More Information

Other Names – HLA Typing, Human Leukocyte Antigen, HLA Typing 3 Loci, HLA Typing by NGS, Solid Organ Transplantation, Kidney Transplant, Stem cell transplant, Bone marrow transplant

 Human leukocyte antigens are of three main types. Class I HLA antigens include HLA-A, B, and C molecules; class II, which includes HLA-DR, -DQ, and -DP loci, are on antigen-presenting cells; and class III contains genes for proteins that have immune functionality. HLA class I typing is used to identify HLA-matched platelets for alloimmunized refractory patients and identify presence of HLA antigens associated with a number of diseases or as drug hypersensitivity markers class I HLA antigens include A, B, and C loci.