Background:Altered Toll-like receptor (TLR) expression levels and/or mutations in its signaling pathway (such as MyD88 mutation) contribute to the pathogenesis of lymphoproliferative disorders (LPD). CD180 is an orphan member of the TLR family that modulates the signaling of several TLRs, but only limited studies have evaluated its expression by flow cytometry (FCM) in LPD. Methods: Using a multiparameter FCM approach, biologists have assessed CD180 mean fluorescence intensity (MFI) in lymph nodes (LNs) and peripheral blood (PB) samples obtained from patients with follicular lymphoma (FL; LN/PB, n=44/n=15), chronic lymphocytic leukemia (CLL, n=26/n=21), mantle cell lymphoma (MCL, n=13/n=17), and marginal zone lymphoma (MZL, n=16/n=12). Specimens from non-tumoral PB and LN (n=8/n=12) were used as controls.
Study Type
OBSERVATIONAL
Enrollment
184
Immunophenotype Analysis by Flow Cytometry of lymph nodes samples at inclusion
Using a multiparameter FCM approach, biologists assessed the CD180 expression by our routine antigen panel in LN suspensions as well as in PB samples. Samples were analyzed on a BD FACSCanto II cytometer (BD FACS DIVA software; Becton Dickinson, San Jose, CA).
Time frame: At inclusion, day 0.
Immunophenotype Analysis by Flow Cytometry of peripheral blood samples at inclusion
Using a multiparameter FCM approach, biologists assessed the CD180 expression by our routine antigen panel in LN suspensions as well as in PB samples. Samples were analyzed on a BD FACSCanto II cytometer (BD FACS DIVA software; Becton Dickinson, San Jose, CA).
Time frame: At inclusion, day 0.
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