CD5 expression in marginal zone lymphoma predicts differential response to rituximab or bendamustine/rituximab

We examined outcomes of 244 patients with marginal zone lymphoma (MZL) diagnosed in 2010-2020, of which 25 (10%) expressed CD5. CD5 expression was present in 22% of splenic, 8% of nodal, and 5% of extranodal MZL, and showed frequent blood/bone marrow involvement, elevated lactate dehydrogenase, and TP53 deletions. CD5 expression was not associated with progression-free or overall survival, but it conferred a significantly higher risk of histologic transformation (22% versus 4% at 5 years, p = 0.002). Among patients receiving first-line rituximab monotherapy, CD5 expression was associated with lower response rate (30% versus 77%, p = 0.006), PFS (25% versus 45% at 3 years, p = 0.003) and OS (44% versus 77%, p = 0.010), whereas CD5 status did not significantly affect outcomes of patients receiving bendamustine with rituximab (P for interaction = 0.012 for progression-free survival). CD5-positive MZL may have a propensity to leukemic dissemination, histologic transformation, and may derive benefit from first-line bendamustine/rituximab rather than rituximab alone.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:63

Enthalten in:

Leukemia & lymphoma - 63(2022), 1 vom: 01. Jan., Seite 31-42

Sprache:

Englisch

Beteiligte Personen:

Hsu, Andrew [VerfasserIn]
Kurt, Habibe [VerfasserIn]
Zayac, Adam S [VerfasserIn]
Olszewski, Adam J [VerfasserIn]

Links:

Volltext

Themen:

4F4X42SYQ6
981Y8SX18M
Bendamustine
Bendamustine Hydrochloride
CD5 expression
Journal Article
Marginal zone lymphoma
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Rituximab

Anmerkungen:

Date Completed 07.03.2022

Date Revised 07.03.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/10428194.2021.1973670

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM330104799