General description
As immune-based therapies in cancer models become more popular and applicable, a further need for immune-competent models has been presented. A wide variety of genetically engineered mouse models have been created to express vital melanoma genotypes. The variety in these models have allowed the study of genetic alterations that are relevant to human melanoma biology. While it is quite useful to have mouse models with genetically defined human melanoma characteristics, it is limited by complex mouse colony maintenance.
The YUMM1.4 cell line was produced to be more experimentally relevant. The cell line was derived by backcrossing important alleles into C57BL/6J mice. The mice were interbred to produce human-relevant genetically defined mouse models that could then be used to generate cell lines. Melanomas were induced by applying 4-hydroxytamoxifen to induce Cre-lox allele recombination. Cells were then mechanically and enzymatically dissociated from the removed tumor. The melanoma lines generated from this procedure retained important human melanoma characteristics useful for studying disease progression.
The YUMM1.4 cell line is driven by Braf activation, Pten inactivation, and Cdkn2a inactivation.1 The cell line is positive for the common melanoma marker, MelanA. The cells are syngeneic with C57BL/6J mice and are very tumorigenic in vivo.
Source
Cell line was derived from a 4-hydroxytamoxifen-induced melanoma tumor in a male C57BL/6 mouse into which mutations from the Braf/Pten genetically-engineered mouse model had been introduced via backcrossing.
References
1. Meeth, K., Wang, J. X., Micevic, G., Damsky, W., & Bosenberg, M. W. (2016). The YUMM lines: a series of congenic mouse melanoma cell lines with defined genetic alterations.Pigment cell & melanoma research,29(5), 590-597.
Application
Each vial contains > 1X106 viable cells.
YUMM1.4 cells are tested negative for infectious diseases by a Mouse Essential CLEAR panel by Charles River Animal Diagnostic Services.
Cells are verified to be of mouse origin and negative for inter-species contamination from rat, chinese hamster, Golden Syrian hamster, human and non-human primate (NHP) as assessed by a Contamination CLEAR panel by Charles River Animal Diagnostic Services.
Cells are negative for mycoplasma contamination.
Features and Benefits
The YUMM1.4 cell line is driven by Braf activation, Pten inactivation, and Cdkn2a inactivation. The cell line is positive for the common melanoma marker, MelanA. The cells are syngeneic with C57BL/6J mice and are very tumorigenic in vivo.
Preparation Note
YUMM1.4 cells should be stored in liquid nitrogen until use. The cells can be cultured for at least 10 passages after initial thawing without significantly affecting the cell marker expression and functionality.
Other Notes
Subject to local law, this product is intended to be sold for internal in vitro research use only subject to terms and conditions found here: www.sigmaaldrich.com/restrictedcelluse. This product may not be: re-engineered or copied; used to make derivatives, modifications or functional equivalents; used to obtain patents or other IP claiming use of the product; used to develop, test, or manufacturer a commercial product; used as a component in a commercial product; resold or licensed; used in any clinical applications or trials; or used in humans. A license or limited commercial use agreement is required for use by any for-profit entity, use in services, and use in sponsored academic research. For information regarding any such use, please contact
[email protected].
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
