Circulating immune markers and risks of non‐Hodgkin lymphoma subtypes: A pooled analysis

Abstract

Although prediagnostic circulating concentrations of the immune activation markers soluble CD27 (sCD27), sCD30 and chemokine ligand‐13 (CXCL13) have been associated with non‐Hodgkin lymphoma (NHL) risk, studies have been limited by sample size in associations with NHL subtypes. We pooled data from eight nested case‐control studies to investigate subtype‐specific relationships for these analytes. Using polytomous regression, we calculated odds ratios (ORs) with 95% confidence intervals (CIs) relating study‐specific analyte tertiles to selected subtypes vs controls (n = 3310): chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL; n = 623), diffuse large B cell lymphoma (DLBCL; n = 621), follicular lymphoma (FL; n = 398), marginal zone lymphoma (MZL; n = 138), mantle cell lymphoma (MCL; n = 82) and T cell lymphoma (TCL; n = 92). We observed associations with DLBCL for elevated sCD27 [OR for third vs first tertile (ORT3) = 2.2, 95% CI = 1.6‐3.1], sCD30 (ORT3 = 2.0, 95% CI = 1.6‐2.5) and CXCL13 (ORT3 = 2.3, 95% CI = 1.8‐3.0). We also observed associations with sCD27 for CLL/SLL (ORT3 = 3.3, 95% CI = 2.4‐4.6), MZL (ORT3 = 7.7, 95% CI = 3.0‐20.1) and TCL (ORT3 = 3.4, 95% CI = 1.5‐7.7), and between sCD30 and FL (ORT3 = 2.7, 95% CI = 2.0‐3.5). In analyses stratified by time from phlebotomy to case diagnosis, the sCD27‐TCL and all three DLBCL associations were equivalent across both follow‐up periods (<7.5, ≥7.5 years). For other analyte‐subtype comparisons, associations were stronger for the follow‐up period closer to phlebotomy, particularly for indolent subtypes. In conclusion, we found robust evidence of an association between these immune markers and DLBCL, consistent with hypotheses that mechanisms related to immune activation are important in its pathogenesis. Our other findings, particularly for the rarer subtypes MZL and TCL, require further investigation.

Implicación de la expresión condicional de HGAL en modelos murinos de linfoma de células grandes B difuso

“…Aunque se desconoce con exactitud la causa de esta patología, sí se sabe que tiene su raíz en una célula linfoide, generalmente madura, cuyo estadio de desarrollo se detiene y comienza a dividirse de forma descontrolada dando lugar a una posterior hipertrofia del órgano del que forma parte 25,53 . El hecho de que el tejido linfático, que forma parte de aparato circulatorio, se extienda por todo el organismo conlleva la posibilidad del desarrollo de la enfermedad en, prácticamente, cualquier parte de este, pudiendo diseminarse a otras regiones corporales 54 .…”