YUMM5.2 Mouse Melanoma Cell Line

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The YUMM cell lines recapitulate genetic drivers found in many human melanomas. YUMM5.2 cells are syngenic with C57BL/6 and retain markers of the Braf/Pten mouse model.

The YUMM5.2 mouse melanoma cell line was derived from a 4-hydroxytamoxifen-induced melanoma tumor in a female C57BL/6 mouse into which mutations from the Braf/Pten genetically-engineered mouse model had been introduced via backcrossing. The YUMM5.2 cell line harbors the Braf V600E mutation and is homozygous negative for Cdkn2.1?

The promise of immune-based therapies for cancer diagnoses and increasingly successful application of these approaches have emphasized the need for immunocompetent models for examination of immunological responses to cancer cells. Immunocompetent genetically-engineered mouse models with distinct genetic drivers of melanoma are essential for identifying potential immunotherapies, but are limited by the need to maintain colonies of multiple genotypes necessary to generate mouse models with appropriate genetic backgrounds.YUMM5.2 cells are syngenic with the immunocompetent C57BL/6 mouse background and maintain genetic markers of the Braf/Pten mouse model. Approximately half of all melanomas contain Braf mutations, of which the V600E mutation comprises 90% of cases, while the tumor suppressor p53 is inactivated in 90% of melanomas. The YUMM5.2 cell line harbors the activating Braf V600E mutation and is negative for p53. The YUMM5.2 mouse melanoma cell line represents a valuable tool for investigating tumor biology and developing therapeutic approaches for melanomas with this highly prevalent mutational profile. ​Mutation: BrafV600E/wt p53−/−References:1. Meeth K et al. (2016) The YUMM lines: a series of congenic mouse melanoma cell lines with defined genetic alterations. Pigment Cell Melanoma Res 29(5): 590-597.2. Dankort D et al. (2009) Braf(V600E) cooperates with Pten loss to induce metastatic melanoma. Nat Genet. 41(5): 544-552.

Store in liquid nitrogen. The cells can be cultured for at least 10 passages after initial thawing without significantly affecting the cell marker expression and functionality.