Abstract：
:CD73 is a membrane-bound enzyme that catalyzes the extracellular conversion of adenosine monophosphate to adenosine. Adenosine is thought to play a role in promoting tumor growth and survival together with suppressing the host immune responses, which contribute to the multistep process of tumorigenesis. Here, we studied the expression of this antigen in chronic lymphocytic leukemia (CLL). The expression of CD73 was analyzed by multiparametric flow cytometry on normal and pathological B-cells from peripheral blood and bone marrow samples from 71 patients with CLL. Pathological B-cells expressed significantly lower levels of CD73 than normal B-cells (p<0.01). Patients with splenomegaly showed a higher expression of CD73 on pathological B-cells than patients without splenomegaly (p<0.05). The expression of CD73 also correlated with beta-2-microglobulin levels (p<0.05). Clinically, patients with higher levels of CD73 versus those with lower expression presented with shorter overall survival (median OS of 65 vs. 113 months, p<0.05). Our data indicate that CD73 may play a role in CLL pathophysiology, is correlated with poor clinical and biological prognostic factors and may be of potential value as a prognostic marker and therapeutic target.
journal_name
Neoplasmajournal_title
Neoplasmaauthors
Kicova M,Michalova Z,Coma M,Gabzdilova J,Dedinska K,Guman T,Bernatova S,Hajikova M,Giertlova M,Veselinyova D,Sarissky Mdoi
10.4149/neo_2020_190826N822subject
Has Abstractpub_date
2020-07-01 00:00:00pages
933-938issue
4eissn
0028-2685issn
1338-4317pii
190826N822journal_volume
67pub_type
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