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Elevated antibody levels to Epstein-Barr virus antigens in patients with hairy cell leukemia compared to controls in relation to exposure to pesticides, organic solvents, animals, and exhausts
Orebro Med Ctr, Dept Oncol, S-70185 Orebro, Sweden Karolinska Inst, Dept Lab Med, S-17576 Stockholm, Sweden Swedish Inst Infect Dis Control, Dept Virol, S-17182 Solna, Sweden Linkoping Univ, Fac Hlth Sci, Div Oncol, S-58183 Linkoping, Sweden.
Orebro Med Ctr, Dept Oncol, S-70185 Orebro, Sweden Karolinska Inst, Dept Lab Med, S-17576 Stockholm, Sweden Swedish Inst Infect Dis Control, Dept Virol, S-17182 Solna, Sweden Linkoping Univ, Fac Hlth Sci, Div Oncol, S-58183 Linkoping, Sweden.
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1999 (English)In: Oncology Research, ISSN 0965-0407, E-ISSN 1555-3906, Vol. 11, no 11-12, 539-544 p.Article in journal (Refereed) Published
Abstract [en]

Epstein-Barr virus (EBV) is a B-lymphotropic human herpes virus infecting B-cells, which has been associated with lymphoid malignancies, above all non-Hodgkin lymphomas (NHL. Severe immunosuppression is the best recognized risk factor for NHL, Many factors in the environment that have been described as risk factors for NHL cause measurable changes in immune functions. Hairy cell leukemia (HCL) is a rare, indolent non-Hodgkin lymphoma, originating from B-lymphocytes, This was a case-control study including 111 male cases with HCL and 400 controls. In a subgroup of 57 cases and 65 controls analysis of antibodies to EBV early antigen, viral capsid antigen, and EBNA-1, measured as P107, was performed. In this study, we confirm other studies describing elevated levels of antibodies to the EBV early antigen (EA) in patients with HCL compared to controls. We found only minor differences in the levels of antibodies to the viral capsid antigen (VCA) and EBNA-1, measured as P107. We found a positive association of a titer to EA IgG greater than or equal to 40 (OR 4.1: CI 1.9-9.5). The ORs were further elevated when subjects with high levels of EA IgG and exposed to environmental agents such as organic solvents, certain pesticides, impregnating agents, animals, and exhausts were compared to those subjects with low levels that were not exposed. Antibody reactivity against the EBV EBNA 1-alanine-glycine repeat (P107 IgG) above the median gave an increased OR for HCL, which further increased in subjects exposed to organic solvents, certain pesticides, impregnating agents, animals, and exhausts. However, the numbers of exposed cases and controls were small in some of the calculations.

Place, publisher, year, edition, pages
1999. Vol. 11, no 11-12, 539-544 p.
Keyword [en]
Epstein-Barr virus (EBV), early antigen (EA), EBNA-1, pesticides, exhausts, animals
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-49683OAI: oai:DiVA.org:liu-49683DiVA: diva2:270579
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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