期刊
BIOMED RESEARCH INTERNATIONAL
卷 2016, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2016/7123587
关键词
-
资金
- National Science Council, Taiwan [99-2314-B-009-001, 98-2314-B-038-030-001, 96-2314-B-385-001]
beta-Lactoglobulin (LG) is suspected to enhance ormodulate humanimmune responses. Moreover, LGis also hypothesized to increase human cell proliferation. However, these potential functions of LG have not been directly or thoroughly addressed. In this study, we demonstrated that LG is a potent stimulator of cell proliferation using a hybridoma cell (a splenocyte fused with amyeloma cell) model. LG's ability to promote cell proliferation was lost when the protein is denatured. To further investigate the influence of LG's conformation on cell proliferation, we chemically modified LG by either carboxymethylation (CM) or acetylation and observed significantly reduced cell proliferation when the protein structure was altered. Furthermore, we proved that LG enhances cell proliferation via receptor-mediated membrane IgM receptor. These data indicated that nondenatured LG is the major component in milk that modulates cell proliferation. Collectively, our study showed that LG plays a key role in enhancing immune responses by promoting cell proliferation through IgM receptor.
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