PMID- 37673757 OWN - NLM STAT- MEDLINE DCOM- 20231206 LR - 20231217 IS - 1473-0502 (Print) IS - 1473-0502 (Linking) VI - 62 IP - 6 DP - 2023 Dec TI - Association of HLA-DRB1 alleles with anti-D alloimmunization in RhD negative pregnant women in India. PG - 103789 LID - S1473-0502(23)00193-3 [pii] LID - 10.1016/j.transci.2023.103789 [doi] AB - BACKGROUND: Human leukocyte antigen (HLA) restriction plays an important role in the susceptibility to alloimmunization against red blood cell (RBC) antigens. The prevalence of anti-D alloimmunization in RhD negative pregnancy is still quite high in our population. Thus, we planned this study to determine the association of HLA-DRB1 alleles with anti-D alloimmunization in RhD negative pregnant women. MATERIAL AND METHODS: RBC antibody screen (ABS) was performed for RhD negative pregnant women attending the antenatal clinic our institute. Those with a negative result were included in the 'non-alloimmunized' (NAL) group ('Control' group), while those with anti-D alloantibody on performing antibody identification were included in the alloimmunized (AL) group of the study (n = 50 each). ABS and identification were done using column agglutination technique. The HLA-DRB1 typing was done by Luminex based reverse sequence specific oligonucleotide probing (SSOP) using commercial kits. The HLA-DRB1 allele frequency was compared in both the groups. RESULTS: There was a significant difference between the two groups in terms of gravida (p < 0.001) and history of anti-D immunoprophylaxis (p < 0.001). The frequency of HLA-DRB1*03 and HLA-DRB1*04 alleles was significantly higher in the AL group than the NAL group: 40 % versus 18 % [Odds Ratio (OR): 3.04, 95 % CI: 1.21-7.6; p = 0.015] for HLA-DRB1*03 alleles and 18 % versus 4 % (OR: 5.27, 95 % CI: 1.08-25.78, p = 0.025) for HLA-DRB1*04 alleles. CONCLUSION: The frequency of HLADRB1*03 and HLADRB1*04 alleles was significantly higher in RhD negative pregnant women alloimmunized with anti-D alloantibody. CI - Copyright (c) 2023 Elsevier Ltd. All rights reserved. FAU - Jain, Ashish AU - Jain A AD - Department of Transfusion Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India. Electronic address: ashishjain16@gmail.com. FAU - Sharma, Ratti Ram AU - Sharma RR AD - Department of Transfusion Medicine, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India. FAU - Minz, Ranjana W AU - Minz RW AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India. FAU - Saha, Subhas Chandra AU - Saha SC AD - Department of Obstetrics and Gynecology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India. LA - eng PT - Journal Article DEP - 20230822 PL - England TA - Transfus Apher Sci JT - Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis JID - 101095653 RN - 0 (HLA-DRB1 Chains) RN - 0 (RHO(D) antibody) RN - 0 (Rho(D) Immune Globulin) RN - 0 (Isoantibodies) MH - Humans MH - Female MH - Pregnancy MH - HLA-DRB1 Chains/genetics MH - *Pregnant Women MH - Alleles MH - *Rho(D) Immune Globulin MH - Isoantibodies MH - Gene Frequency OTO - NOTNLM OT - Anti-D alloimmunization OT - HLA-DRB1 alleles OT - Red cell alloimmunization OT - RhD negative pregnant women COIS- Conflict of interest None. EDAT- 2023/09/07 00:41 MHDA- 2023/12/06 06:42 CRDT- 2023/09/06 21:57 PHST- 2023/04/24 00:00 [received] PHST- 2023/08/03 00:00 [revised] PHST- 2023/08/18 00:00 [accepted] PHST- 2023/12/06 06:42 [medline] PHST- 2023/09/07 00:41 [pubmed] PHST- 2023/09/06 21:57 [entrez] AID - S1473-0502(23)00193-3 [pii] AID - 10.1016/j.transci.2023.103789 [doi] PST - ppublish SO - Transfus Apher Sci. 2023 Dec;62(6):103789. doi: 10.1016/j.transci.2023.103789. Epub 2023 Aug 22.