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Sci J Iran Blood Transfus Organ 2023;20(1): 11-18
Original Article
Evaluation of the development of specific lymphoblastoid cell line producing antibody from B lymphocytes in thalassemia patients immunized against KELL antigen by Epstein-Barr virus Ahmadi Seyd Mohammadi P.1, Sharifi Z.1, Oodi A.1, Milani S.1 1Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran Abstract Background and Objectives Alloimmunization is caused by exposure of B lymphocytes to foreign antigens following incompatible blood transfusions and is associated with many hemolytic complications. One of the ways to detect blood group antigens is monoclonal antibodies. The aim of the present study is transforming of alloimmunized cells against KELL antigen in thalassemia patients by EBV-Transformation method and to produce lymphoblastoid cell line producing anti-KELL antibody. Materials and Methods In an experimental study, peripheral blood mononuclear cells (PBMCs) of 10 thalassemia patients immunized against KELL antigen were isolated by ficoll hypaque method and exposed to EBV-containing supernatant of B95-8 cell line for 4 hours. After one to three weeks, the production of antibody-producing lymphoblastoid clones and the specificity of the antibody were examined by microscopic observation and microhemagglutination method, respectively.
Results The results showed that exposure of PBMCs of thalassemia patients immunized against KELL antigen with EBV viral soup caused the formation of lymphoblastoid clones. Examination of the supernatant of culture of produced clones showed that the antibody produced by these cells were able to identify red blood cells containing KELL antigen and agglutinate them by micro hemagglutination test.
Conclusions Based on the findings, there is a possibility of PBMC transformation in thalassemia patients immunized against KELL antigen and antibody production. Key words:Alloimmunization, Epstein-Barr Virus, B Lymphocytes
Received: 22 May 2022 Accepted: 11 Sep 2022
Correspondence: Milani S., PhD of Medical Biotechnology. Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine. P.O.Box: 14665-1157, Tehran, Iran. Tel: (+9821) 88993778; Fax: (+9821) 88993778 E-mail:
Ahmadi Sead Mohammadi P, Sharifi Z, Oodi A, Milani S. Evaluation of the development of specific lymphoblastoid cell line producing antibody from B lymphocytes in thalassemia patients immunized against KELL antigen by Epstein-Barr virus. Sci J Iran Blood Transfus Organ 2023; 20 (1) :11-18 URL: http://bloodjournal.ir/article-1-1449-en.html