Establishment and characterization of multiple myeloma cell lines from a single patient’s disease course immortalizes clonal heterogeneity

Multiple myeloma (MM) is an incurable plasma cell neoplasm characterized by diverse and complex genetic abnormalities, including translocations of immunoglobulin (Ig) genes and a hyperdiploid karyotype. Much of our current understanding of MM genetics, epigenetics, pathogenesis and response/resistance to myeloma directed therapies originated from studies on human MM-derived cell lines (HMCL). In this study, we conducted an integrated multi-omics analysis in five hyperdiploid cell lines established from serial samples from a single relapsed/refractory hyperdiploid MM patient, enabling detailed characterization of the genetic landscape and molecular alterations through disease progression.