Potential clinical impact of T-cell lymphocyte kinetics monitoring in patients with B cell precursors acute lymphoblastic leukemia treated with blinatumomab: a single-center experience

نویسندگان

چکیده

Blinatumomab is a bispecific anti-CD3 and anti-CD19 antibody that acts as T-cell engager: by binding CD19+ lymphoblasts, blinatumomab recruits cytotoxic CD3+ T-lymphocytes to target the cancer cells. Here we describe seven different patients affected B-cell precursor acute lymphoblastic leukemia (Bcp-ALL) treated with blinatumomab, on which evaluated potential association between amount of T-cells subsets deep molecular response after first cycle, identified complete remission in absence minimal residual disease (CR/MRD). The immune-system effector cells studied were CD3+, CD4+ memory (T4-EM), CD8+ (T8-EM), T-regulatory (T-reg) lymphocytes, myeloid-derived suppressor (MDSC). Measurements performed peripheral blood using flow cytometry at baseline cycle blinatumomab. results show higher proportion achieved MRD negativity more frequently no statistically significant difference (p=0.06) without differences subpopulation count following treatment. These extremely preliminary data could potentially pave way for future studies, including larger less heterogeneous cohorts, order assess kinetics specific set synergy effects targeting (MDSC), commonly known have an immune evasion mechanism Bcp-ALL.

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ژورنال

عنوان ژورنال: Frontiers in Immunology

سال: 2023

ISSN: ['1664-3224']

DOI: https://doi.org/10.3389/fimmu.2023.1195734