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  • 1
    Keywords: human ; neoplasms ; CLASSIFICATION ; EPIDEMIOLOGY ; NEW-YORK ; RISK ; SAMPLE ; SAMPLES ; INFECTION ; ASSOCIATION ; antibodies ; antibody ; virus ; LYMPHOMA ; ASSAY ; AGE ; LYMPHOCYTES ; case-control studies ; PREVALENCE ; EUROPE ; B-CELL LYMPHOMA ; HUMAN-IMMUNODEFICIENCY-VIRUS ; SERUM ; ADULT ; case-control study ; MALIGNANT-LYMPHOMA ; MIXED CRYOGLOBULINEMIA ; RECIPIENTS ; non-Hodgkin lymphoma ; analysis ; methods ; SUBTYPES ; ASSAYS ; USA ; B-CELL ; MALIGNANT-LYMPHOMAS ; LOW-GRADE ; non Hodgkin lymphoma ; VIRUS CORE PROTEIN ; CONSORTIUM ; red ; INTERLYMPH
    Abstract: Background & Aims: increasing evidence points towards a role of hepatitis C virus (HCV) infection in causing malignant lymphomas. We pooled case-control study data to provide robust estimates of the risk of non-Hodgkin's lymphoma (NHL) subtypes after HCV infection. Methods: The analysis included 7 member studies from the International Lymphoma Epidemiology Consortium (InterLymph) based in Europe, North America, and Australia. Adult cases of NHL (n = 4784) were diagnosed between 1988 and 2004 and controls (n = 6269) were matched by age, sex, and study center. All studies used third-generation enzyme-linked immunosorbent assays to test for antibodies against HCV in serum samples. Participants who were human immunodeficiency virus positive or were organ-transplant recipients were excluded. Results: HCV infection was detected in 172 NHL cases (3.60%) and in 169 (2.70%) controls (odds ratio [OR], 1.78; 95% confidence interval [CI], 1.40 -2.25). In subtype-specific analyses, HCV prevalence was associated with marginal zone lymphoma (OR, 2.47; 95% CI, 1.44-4.23), diffuse large B-cell lymphoma (OR, 2.24; 95% CI, 1.682.99), and lymphoplasmacytic lymphoma (OR, 2.57; 95% CI, 1.14-5.79). Notably, risk estimates were not increased for follicular lymphoma (OR, 1.02; 95% CI, 0.65-1.60). Conclusions: These results confirm the association between HCV infection and NHL and specific B-NHL subtypes (diffuse large B-cell lymphoma, marginal zone lymphoma, and lymphoplasmacytic lymphoma)
    Type of Publication: Journal article published
    PubMed ID: 18387498
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  • 2
    Keywords: carcinoma ; RISK ; SAMPLES ; INFECTION ; antibodies ; LYMPHOMA ; CANCERS ; EPILYMPH ; MCPYV
    Abstract: Merkel cell polyomavirus (MCPyV) has been suspected to cause chronic lymphocytic leukaemia (CLL) but previous data are inconsistent. We measured seroreactivities of nine polyomaviruses (MCPyV, BKPyV, JCPyV, LPyV, KIPyV, WUPyV, HPyV-6, HPyV-7 and TSPyV) in 359 CLL cases and 370 controls using bead-based multiplex serology technology. We additionally tested two herpesviruses (HSV-1 and CMV). Associations between disease and viral seroreactivities were assessed using logistic regression. All human viruses showed high seroprevalences (69-99 %) against structural proteins in controls but significantly lower viral seroprevalences in cases (58-94 %; OR range = 0.21-0.70, P value 〈 0.05), except for MCPyV (OR = 0.79, 95 % CI = 0.54-1.16). Lower seroreactivity levels were observed among CLL subjects, with significant differences already observed at early stages of disease, unrelated to treatment status. Seroreactivities against polyomavirus related oncoproteins were almost null. Our data suggest no association for MCPyV polyomavirus with CLL development and an unlikely association for other polyomaviruses tested.
    Type of Publication: Journal article published
    PubMed ID: 25920529
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  • 3
    Keywords: CANCER ; EXPRESSION ; Germany ; neoplasms ; DIAGNOSIS ; POPULATION ; RISK ; DISTINCT ; PROTEIN ; PROTEINS ; SAMPLE ; SAMPLES ; PATIENT ; RESPONSES ; INFECTION ; SERA ; ANTIGEN ; ANTIGENS ; T-CELL ; antibodies ; antibody ; ENTRY ; virus ; LYMPHOMA ; MALIGNANCIES ; PATTERNS ; AGE ; COUNTRIES ; DIVERSITY ; CANCER-PATIENTS ; case-control studies ; ANTIBODY-RESPONSES ; EPITOPE ; EPITOPES ; SERIES ; IMBALANCES ; CANCER PATIENTS ; EPSTEIN-BARR-VIRUS ; HODGKINS-DISEASE ; FOLLICULAR LYMPHOMA ; SERUM ; ELISA ; Epstein-Barr virus ; MALIGNANCY ; ONCOLOGY ; DISORDERS ; case control study ; case-control study ; SUBSET ; PATTERN ; BZLF1 ; VIRUS-INFECTION ; EBV INFECTION ; LEVEL ; case control studies ; INTERVAL ; analysis ; EVENTS ; leukaemia ; USA ; LOSSES ; EBV ; EVALUATE ; odds ratio ; RISK-FACTOR ; B-CELL ; case control ; CELL LYMPHOMAS ; Epstein Barr virus ; LATENT INFECTION ; MONONUCLEOSIS
    Abstract: Epstein-Barr Virus (EBV) is consistently associated with distinct lymphoproliferative malignancies and aberrant EBV antibody patterns are found in most EBV cancer patients. We evaluate the detection of an abnormal reactive serological pattern to EBV (ab_EBV) infection and the risk of lymphoma in a multicentric case-control study. Serum samples were collected at study entry from 1,085 incident lymphoma cases from Spain, France, Germany, Czech Republic, Italy and 1,153 age, sex and country matched controls. EBV immunoglobulin G (IgG) serostatus was evaluated through a peptide-based ELISA combining immunodominant epitopes of EBNA1 (BKRF1) and VCA-p18 (BFRF3). Further, immunoblot analysis was performed to evaluate distinct antibody diversity patterns to EBV early antigens (EA), besides EBNA1, VCA-p18, VCA-p40 (BdRF1) and Zebra (BZLF1). Patients with chronic active EBV infection and aberrant EBV activity were characterized as having an abnormal reactive pattern (ab_EBV). Ab EBV was observed in 20.9% of 2,238 included subjects with an increased proportion of cases presenting ab_EBV as compared to the control population (23.9% vs. 18.0% p = 0.001). Ab_EBV positivity was a risk factor for all lymphomas combined (odds ratio [OR] = 1.42, 95% confidence interval [CI]=1.15-1.74), and specifically for chronic lymphocytic leukaemia (OR = 2.96, 95%CI = 2.22-3.95). Lower levels of ab EBV were observed for follicular lymphoma (OR = 0.38, 95%-CI = 0.15-0.98). EBV may be involved in a larger subset of lymphomas among clinically immunocompetent subjects than previously thought, probably explained by an underlying loss of immune control of EBV latent infection. Ab_EBV is a useful too] to explore EBV imbalances preceeding or paralleling possible EBV associated oncogenic events. (C) 2007 Wiley-Liss, Inc
    Type of Publication: Journal article published
    PubMed ID: 17557295
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  • 4
    Keywords: CANCER ; CELLS ; DISEASE ; EPIDEMIOLOGY ; RISK ; INFECTION ; ASSOCIATION ; LYMPHOMA ; EPSTEIN-BARR-VIRUS ; serology ; BLOOD-DONORS ; human herpes virus 8 ; HUMAN-HERPESVIRUS-8 SEROPREVALENCE ; Kaposi's sarcoma-associated herpes virus
    Abstract: BACKGROUND: Kaposi's sarcoma-associated herpes virus is associated with primary effusion lymphoma and multicentric Castleman's disease. METHODS: Seropositivity to lytic and latent Kaposi's sarcoma herpes virus (KSHV) antigens were examined in 2083 lymphomas and 2013 controls from six European countries. RESULTS: Antibodies against KSHV latent and lytic antigens were detectable in 4.5% and 3.4% of controls, respectively, and 3.6% of cases (P〉0.05). The KSHV seropositivity was associated with splenic marginal zone lymphoma (SMZL) (odds ratio (OR)=4.11, 95% confidence interval (CI)=1.57-10.83) and multiple myeloma (OR=0.31, 95% CI=0.11-0.85). CONCLUSION: The KSHV is unlikely to contribute importantly to lymphomagenesis among immunocompetent subjects. However, the observed association with SMZL may underline a chronic antigen mechanism in its aetiology.
    Type of Publication: Journal article published
    PubMed ID: 21952625
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  • 5
    Keywords: Germany ; human ; MODEL ; EXPOSURE ; HEPATOCELLULAR-CARCINOMA ; HISTORY ; RISK ; RNA ; INFECTION ; FAMILY ; T cell ; T-CELL ; ASSOCIATION ; POLYMORPHISMS ; virus ; LYMPHOMA ; MALIGNANCIES ; AGE ; family history ; etiology ; COUNTRIES ; leukemia ; PATHOGENESIS ; REPLICATION ; case-control studies ; INDIVIDUALS ; PREVALENCE ; INTERVIEW ; MULTICENTER ; B-CELL LYMPHOMA ; immunoassay ; NON-HODGKINS-LYMPHOMA ; SERUM ; MALIGNANCY ; case-control study ; RE ; FAMILIES ; VIRUS-INFECTION ; LYMPHOPROLIFERATIVE DISORDERS ; MIXED CRYOGLOBULINEMIA ; METAANALYSIS ; case control studies ; INTERVAL ; ENZYME ; SUBTYPES ; LYMPHOMAS ; SIZE ; FAMILY-HISTORY ; EUROPEAN COUNTRIES ; odds ratio ; B-CELL ; EXPOSURES ; MULTICENTER CASE-CONTROL ; RARE ; SAMPLE-SIZE ; HCV INFECTION
    Abstract: Background & Aims: Increasing evidence points toward a role of hepatitis C virus (HCV) infection in the etiology of malignant lymphomas. However, previous epidemiologic studies were limited in size to establish an association between HCV infection and specific lymphoma subtypes. We performed a large, multicenter, case-control study to address this question. Methods: The study comprised 5 European countries and included newly diagnosed cases of any lymphoid malignancy recruited between 1998 and 2004. Controls were matched to cases by 5-year age group, sex, and study center. In-person interviews were conducted to collect data on demographic, medical, and family history as well as environmental exposures. Serum samples of 1807 cases and 1788 controls (excluding human immunodeficiency virus-positive and organ-transplantation subjects) were screened for HCV infection using an enzyme immunoassay. Positive as well as randomly selected negative samples were subjected to HCV RNA detection and HCV genotyping. Results: HCV infection was detected in 53 (2.9%) lymphoma cases and in 41 (2.3%) control subjects (odds ratio [OR], 1.42; 95% confidence interval [CI]: 0.93-2.15). Restricted to individuals who tested positive for HCV-RNA (indicating persistent infection and active viral replication), the OR was 1.82 (95% CI: 1.13-2.91). In subtype-specific analyses, HCV prevalence was associated with diffuse large B-cell lymphoma (OR, 2.19; 95% CI: 1.23-3.91) but not with chronic lymphocytic leukemia or follicular, Hodgkin's, or T-cell lymphoma. The sample size was not sufficient to derive any conclusions for rare lymphoma entities such as splenic marginal zone lymphoma. Conclusions: These results support a model that chronic HCV replication contributes to lymphomagenesis and establish a specific role of HCV infection in the pathogenesis of diffuse large B-cell lymphoma
    Type of Publication: Journal article published
    PubMed ID: 17087949
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