PMID- 10487851 OWN - NLM STAT- MEDLINE DCOM- 19991007 LR - 20181113 IS - 0002-9440 (Print) IS - 1525-2191 (Electronic) IS - 0002-9440 (Linking) VI - 155 IP - 3 DP - 1999 Sep TI - Epstein-Barr virus (EBV) nuclear antigen (EBNA)-4 mutation in EBV-associated malignancies in three different populations. PG - 941-7 AB - Different ethnic groups with a high human leukocyte antigen (HLA)-A11 prevalence have been shown to experience a high rate of Epstein-Barr virus (EBV) infection, EBV-associated malignancies, and Epstein-Barr nuclear antigen (EBNA)-4 mutations. The epitopes 399-408 and 416-424 of EBNA-4 are major antigenic epitopes that elicit an HLA-A11 cytotoxic T lymphocyte (CTL) response to EBV infection. Mutations selectively involving one or more nucleotide residues in these epitopes affect the antigenicity of EBNA-4, because the mutant EBV strains are not recognized by the HLA-A11-restricted CTLs. To investigate these mutations in common EBV-associated malignancies occurring in different populations, we studied the mutation rate of epitopes 399-408 and 416-424 of EBNA-4 in 25 cases of EBV-associated Hodgkin's disease (HD), nine cases of AIDS-related non-Hodgkin's lymphoma, and 37 cases of EBV-associated gastric carcinoma (GC) from the United States, Brazil, and Japan. We found one or more mutations in these two epitopes in 50% (6/12) of United States HD, 15% (2/13) of Brazilian HD, 50% (6/12) United States GC and 28% (7/25) Japanese GC, and 22% (2/9) of United States AIDS-lymphoma. Similar mutations were found in 30% (3/10) of United States reactive, 0% (0/6) of Brazilian reactive, and 25% (2/8) Japanese reactive tissues. The most frequent amino acid substitutions were virtually identical to those seen in previously reported isolates from EBV-associated nasopharyngeal carcinomas and Burkitt's lymphomas occurring in high prevalence HLA-A11 regions. However, only 2/28 (7%) mutations occurred in HLA-A11-positive patients. Our studies suggest that: 1) EBNA-4 mutations are a common phenomenon in EBV-associated HD, GC, and AIDS-lymphoma; 2) the mutation rate does not vary in these geographic areas and ethnic groups; 3) EBNA-4 mutations in EBV-associated United States and Brazilian HD, United States and Japanese GC, and United States AIDS lymphomas are not related to patients' HLA-A11 status. FAU - Chu, P G AU - Chu PG AD - Division of Pathology, City of Hope National Medical Center, Duarte, California 91010-0269, USA. FAU - Chang, K L AU - Chang KL FAU - Chen, W G AU - Chen WG FAU - Chen, Y Y AU - Chen YY FAU - Shibata, D AU - Shibata D FAU - Hayashi, K AU - Hayashi K FAU - Bacchi, C AU - Bacchi C FAU - Bacchi, M AU - Bacchi M FAU - Weiss, L M AU - Weiss LM LA - eng PT - Journal Article PL - United States TA - Am J Pathol JT - The American journal of pathology JID - 0370502 RN - 0 (DNA, Viral) RN - 0 (Epitopes) RN - 0 (Epstein-Barr Virus Nuclear Antigens) RN - 0 (HLA-A Antigens) RN - 0 (HLA-A11 Antigen) SB - IM MH - Amino Acid Sequence MH - Amino Acid Substitution MH - Base Sequence MH - Carcinoma/virology MH - DNA Mutational Analysis MH - DNA, Viral/analysis MH - Epitopes/genetics MH - Epstein-Barr Virus Nuclear Antigens/*genetics MH - HLA-A Antigens/genetics MH - HLA-A11 Antigen MH - Hodgkin Disease/*virology MH - Humans MH - Lymphoma, AIDS-Related/*virology MH - Lymphoma, Non-Hodgkin/*virology MH - Molecular Sequence Data MH - Mutation MH - Polymerase Chain Reaction MH - Stomach Neoplasms/*virology PMC - PMC1866909 EDAT- 1999/09/17 00:00 MHDA- 1999/09/17 00:01 PMCR- 2000/03/01 CRDT- 1999/09/17 00:00 PHST- 1999/09/17 00:00 [pubmed] PHST- 1999/09/17 00:01 [medline] PHST- 1999/09/17 00:00 [entrez] PHST- 2000/03/01 00:00 [pmc-release] AID - S0002-9440(10)65193-0 [pii] AID - 1840 [pii] AID - 10.1016/S0002-9440(10)65193-0 [doi] PST - ppublish SO - Am J Pathol. 1999 Sep;155(3):941-7. doi: 10.1016/S0002-9440(10)65193-0.