A simple flow cytometry‐based barcode for routine authentication of multiple myeloma and mantle cell lymphoma cell lines

lines are widely used in laboratories for in vitro experi-ments, especially for investigating abnormal hallmarks in can-cer cells and identifying therapeutic targets. Human cell linesare typically derived in academic laboratories from a widerange of cancer samples. To achieve a representation of intra-cancer heterogeneity, several laboratories, including ours, haveestablished cell line collections. However, the establishmentand maintenance of such collections significantly increase therisk of cross-contaminations and misidentification of celllines, leading to the publication of false data/interpretation(1). In addition to the risk of cross-contamination, widelyused cell lines can be described in contrasting manners for aparticular feature (e.g., the JJN3 myeloma cell line appearseither TP53