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  • Title: Antigen expression patterns of MYC-rearranged versus non-MYC-rearranged B-cell lymphomas by flow cytometry.
    Author: Mandelker DL, Dorfman DM, Li B, Pozdnyakova O.
    Journal: Leuk Lymphoma; 2014 Nov; 55(11):2592-6. PubMed ID: 24397618.
    Abstract:
    B-cell lymphomas with MYC rearrangement are a heterogeneous and unique group of neoplasms that may behave aggressively, especially in conjunction with other oncogenic alterations that cooperate with MYC, warranting early and intensive treatment in a subset of patients. Identification of MYC-rearranged B-cell lymphomas by immunophenotypic analysis could help guide cytogenetic work-up, as well as expedite therapeutic interventions. Using flow cytometry we analyzed the expression of CD10, CD19, CD20, CD38 and CD45 in 53 patients with three distinct neoplasms with MYC rearrangements: Burkitt lymphoma (n = 12), double hit lymphoma (n = 17) and diffuse large B-cell lymphoma (DLBCL) with MYC rearrangement (n = 8). The expression profile of these commonly used antibodies was similar among these three groups. The antigenic pattern of bright CD38 and dim CD45 was unique to the MYC-rearranged neoplasms when compared to non-MYC-rearranged aggressive DLBCL (n = 16), with a combined sensitivity of 67% and specificity of 100%, suggesting a shared underlying biology among these MYC rearranged B-cell lymphomas.
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