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- Nordstrom, M, et al.
(författare)
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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
- 1999
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Ingår i: Oncology Research. - 0965-0407 .- 1555-3906. ; 11:11-12, s. 539-544
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Tidskriftsartikel (refereegranskat)abstract
- 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.
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- Wendt, M, et al.
(författare)
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Long-Term Survival and Recurrence in Oropharyngeal Squamous Cell Carcinoma in Relation to Subsites, HPV, and p16-Status
- 2021
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Ingår i: Cancers. - : MDPI AG. - 2072-6694. ; 13:11
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Tidskriftsartikel (refereegranskat)abstract
- Long-term survival data in relation to sub-sites, human papillomavirus (HPV), and p16INK4a (p16) for patients with oropharyngeal squamous cell carcinoma (OPSCC) is still sparse. Furthermore, reports have indicated atypical and late recurrences for patients with HPV and p16 positive OPSCC. Therefore, we assessed long-term survival and recurrence in relation to oropharyngeal subsite and HPV/p16 status. A total of 529 patients with OPSCC, diagnosed in the period 2000–2010, with known HPVDNA and p16-status, were included. HPV/p16 status and sub-sites were correlated to disease-free and overall survival (DFS and OS respectively). The overexpression of p16 (p16+) is associated with significantly better long-term OS and DFS in tonsillar and base of tongue carcinomas (TSCC/BOTSCC), but not in patients with other OPSCC. Patients with HPVDNA+/p16+ TSCC/BOTSCC presented better OS and DFS compared to those with HPVDNA−/p16− tumors, while those with HPVDNA−/p16+ cancer had an intermediate survival. Late recurrences were rare, and significantly more frequent in patients with p16− tumors, while the prognosis after relapse was poor independent of HPVDNA+/−/p16+/− status. In conclusion, patients with p16+ OPSCC do not have more late recurrences than p16−, and a clear prognostic value of p16+ was only observed in TSCC/BOTSCC. Finally, the combination of HPVDNA and p16 provided superior prognostic information compared to p16 alone in TSCC/BOTSCC.
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