Association Between Bruton's Tyrosine Kinase Gene Overexpression and Risk of Lymphoma in Primary Sjögren's Syndrome

淋巴瘤 医学 内科学 肿瘤科 免疫学 胃肠病学 癌症研究
作者
Pierre‐Marie Duret,Cédric Schleiss,Lou Kawka,Nicolás Meyer,Tao Ye,Alain Saraux,Valérie Devauchelle‐Pensec,Raphaèle Séror,C. Larroche,Aleth Perdriger,Jean Sibilia,Laurent Vallat,Luc‐Matthieu Fornecker,Gaétane Nocturne,Xavier Mariette,Jacques‐Eric Gottenberg
出处
期刊:Arthritis & rheumatology [Wiley]
卷期号:75 (10): 1798-1811 被引量:3
标识
DOI:10.1002/art.42550
摘要

Objective We undertook this study to analyze whole blood gene expression and to investigate the role of B cell genes in primary Sjögren's syndrome–related non‐Hodgkin lymphoma (primary SS‐NHL). Methods Peripheral whole blood samples were collected from 345 well‐phenotyped patients with primary SS enrolled in the prospective Assessment of Systemic Signs and Evolution in Sjögren's Syndrome (ASSESS) cohort. Transcriptomic analysis was performed using human Clariom S Arrays (Affymetrix). In our primary analysis, we considered patients with incident lymphoma (i‐primary SS‐NHL) as the case group and all patients without lymphoma as the comparison group. In our sensitivity analyses, we considered all patients with primary SS‐NHL, including those with a history of lymphoma (h‐primary SS‐NHL), as the case group and primary SS patients without lymphoma, stratified on their risk factors of lymphoma, as the comparison group. Results Twenty‐one patients with primary SS‐NHL (including 8 with i‐primary SS‐NHL and 13 h‐primary SS‐NHL) were eligible for transcriptomic analysis; we compared these patients to 324 primary SS controls without lymphoma, including 110 with moderate to severe disease activity and 61 with no risk factor of lymphoma. Functional clustering analyses revealed an enrichment of genes related to innate and adaptive immunity, including B cell–related genes. Bruton's tyrosine kinase (BTK) and a proliferation‐inducing ligand (APRIL) genes were overexpressed before the occurrence of lymphoma in patients with incident lymphoma compared with patients without lymphoma. In sensitivity analyses, BTK was consistently up‐regulated across all comparisons performed. BTK expression was associated with risk of lymphoma on multivariate analyses, which considered 9 validated predictors of lymphoma in primary SS. Conclusion BTK and APRIL were overexpressed in the peripheral blood of primary SS patients prior to lymphoma. The association between BTK, APRIL, and primary SS‐NHL requires confirmation in other prospective cohorts. image
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