alexa Proliferation of the MAC-T bovine mammary epithelial cell line in the presence of mammary secretion whey proteins.


Journal of Cancer Clinical Trials

Author(s): Rejman JJ, Oliver SP, Muenchen RA, Turner JD, Rejman JJ, Oliver SP, Muenchen RA, Turner JD

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Abstract Development of the MAC-T bovine mammary epithelial cell line by stable transfection with simian virus-40 large T-antigen should greatly assist study of possible intrinsic (local) and extrinsic (systemic) factors regulating bovine mammary epithelial cell development, differentiation, and function. This study evaluated the influence of mammary secretion whey proteins alpha-lactalbumin (ALA), beta-lactoglobulin (BLG), lactoferrin (LF), transferrin (TF) and serum albumin (SA) on MAC-T cell proliferation in the absence and presence of 10\% fetal bovine serum (FBS). Concentration of whey proteins in culture ranged from 0 to 625 micrograms/ml. MAC-T cell proliferation in the absence of FBS was significantly lower than in the presence of 10\% FBS. Alpha-lactalbumin and LF significantly decreased MAC-T proliferation in both the absence and presence of 10\% FBS. Transferrin significantly increased MAC-T cell proliferation only in the absence of FBS. There were no significant differences in MAC-T cell proliferation cultured in the presence of BLG or SA. These experiments illustrate the potential usefulness of MAC-T cells for the study of factors involved in mammary cell proliferation. Results identified ALA, LF and TF as possible intrinsic factors associated with regulation of mammary epithelial cell proliferation.
This article was published in Cell Biol Int Rep and referenced in Journal of Cancer Clinical Trials

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