Sun-Young Kong1, Sokbom Kang. 1. Hematologic Malignancy Branch & Department of Laboratory Medicine, Center for Clinical Services, Goyang, Korea.
Abstract
OBJECTIVE: The aim of the current study is to test whether immortalized B-lymphocyte cell line via Ebstein-Barr virus (EBV) transformation is feasible and can be an unlimited source of genome wide study. METHODS: We obtained peripheral whole blood from 5 ovarian cancer patients and immortalized the B-cell lines using EBV transformation. The success rate was analyzed and the bio-identity of the genome was performed using human leukocyte antigen (HLA) identity test. RESULTS: EBV transformation was successful in all 5 cases (95% confidence interval, 46.3% to 100%). After cryopreservation of EBV-transformed B-cell lines and subsequent thawing, we observed that all cell lines were viable and proliferative. To check bio-identity, HLA-A, B, and DR were tested between the genome of the original samples and the transformed samples. The HLA typing revealed that all observed HLA-A, B, and DR type was identical in 5 cases before and after EBV-transformation. CONCLUSION: The current results suggest that EBV-transformation of peripheral blood is an efficient tool in genome banking. The EBV-transformed B-cell lines may be a valuable resource of genome in multi-center translational research by the Korean Gynecologic Oncology Group.
OBJECTIVE: The aim of the current study is to test whether immortalized B-lymphocyte cell line via Ebstein-Barr virus (EBV) transformation is feasible and can be an unlimited source of genome wide study. METHODS: We obtained peripheral whole blood from 5 ovarian cancerpatients and immortalized the B-cell lines using EBV transformation. The success rate was analyzed and the bio-identity of the genome was performed using human leukocyte antigen (HLA) identity test. RESULTS: EBV transformation was successful in all 5 cases (95% confidence interval, 46.3% to 100%). After cryopreservation of EBV-transformed B-cell lines and subsequent thawing, we observed that all cell lines were viable and proliferative. To check bio-identity, HLA-A, B, and DR were tested between the genome of the original samples and the transformed samples. The HLA typing revealed that all observed HLA-A, B, and DR type was identical in 5 cases before and after EBV-transformation. CONCLUSION: The current results suggest that EBV-transformation of peripheral blood is an efficient tool in genome banking. The EBV-transformed B-cell lines may be a valuable resource of genome in multi-center translational research by the Korean Gynecologic Oncology Group.
Entities:
Keywords:
Cryopreservation; DNA storage; EBV transformation; Epidemiology; Genomics
Authors: Richard B Hayes; Craig O Smith; Wen-Yi Huang; Yvonne Read; William C Kopp Journal: Cancer Epidemiol Biomarkers Prev Date: 2002-11 Impact factor: 4.254
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