Abstract
Multiple myeloma (MM) is a neoplasm of a terminally differentiated B-cell. Human myeloma cell lines were shown to be suitable model systems for use in various fields of the biological sciences. Within the last 20 years more than 100 cell lines have been established. So-called ‘mdeloma cell lines’ have been previously reported and are still widely used which are in reality Epstein-Barr virus (EBV-positive Blymphoblastoid cell lines. The presence of the EBV-genome in residual normal B-cells provides them with a selective growth advantage after explantation. Cell lines represent an extremely important resource for research in a variety of fields and disciplines. AS the cell lines are used as in vitro model systems in lieu of primary material, it is crucial that the cells in the culture flasks faithfully correspond to the purported objects of study. On closer examination, the use of false cell lines may be seen to invalidate a significant percentage of scientific work, or at least cast doubts on the relevance of these in vitro results to the cell type or tumor in vivo. Ultimately, use of cross-contaminated cell lines is a waste of human and material resources. Henceforth, it should be mandatory to prove the proper derivation of each new cell line by comparing DNA fingerprints or karyotypes of the patient’s primary cells and the cultured cells. The availability of well characterized and authenticated bona fide MM cell lines is of great importance for the study of the biology, etiology and treatment of the disease.
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Drexler, H.G., Matsuo, Y. & Macleod, R.A.F. Persistent use of false myeloma cell lines. Hum Cell 16, 101–105 (2003). https://doi.org/10.1111/j.1749-0774.2003.tb00140.x
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DOI: https://doi.org/10.1111/j.1749-0774.2003.tb00140.x