Immune biomarkers of response to immunotherapy in patients with high-risk smoldering myeloma.

ABSTRACT: Patients with smoldering multiple myeloma (SMM) are observed until progression, but early treatment may improve outcomes. We conducted a phase II trial of elotuzumab, lenalidomide, and dexamethasone (EloLenDex) in patients with high-risk SMM and performed single-cell RNA and T cell receptor (TCR) sequencing on 149 bone marrow (BM) and peripheral blood (PB) samples from patients and healthy donors (HDs). We find that early treatment with EloLenDex is safe and effective and provide a comprehensive characterization of alterations in immune cell composition and TCR repertoire diversity in patients. We show that the similarity of a patient's immune cell composition to that of HDs may have prognostic relevance at diagnosis and after treatment and that the abundance of granzyme K (GZMK)⁺

SUBMITTER: Sklavenitis-Pistofidis R 

PROVIDER: S-EPMC10019228 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature