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The effect of bovine β-casein (1-28) purified from commercial casein phosphopeptide preparations on human T, B, and monocyte cell lines was evaluated. Beta-casein (1-28) enhanced the proliferation of the following: T cell lines HUT-78, Jurkat Clone E6-1, and MOLT-4; B cell lines BALL, KHM-1B, and U266B1; and monocyte cell lines U937 and HL-60. Moreover, β-casein (1-28) stimulated IgA production by KHM-1B over 96 h of culture. Semiquantitative reverse transcriptional-polymerase chain reaction analysis indicated that β-casein (1-28) enhanced mRNA expression of interleukin (IL)-6 in U266B1 and KHM-1B. These results suggest that β-casein (1-28) exerts a mitogenic effect on human T, B, and monocyte cells, and an IgA-enhancing effect on B cells.
- Bioscience, Biotechnology, and Biochemistry
Bioscience, Biotechnology, and Biochemistry 68(10), 2091-2095, 2004-10-23
Japan Society for Bioscience, Biotechnology, and Agrochemistry