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KMID : 0545119940040030195
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Journal of Microbiology and Biotechnology
1994 Volume.4 No. 3 p.195 ~ p.199
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Immunostimulation Effects of Cell Wall Components Isolated from Lactobacillus plantarum
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Kang, Kwan Yueb
Park, Sung Ho/Choe, Tae Boo
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Abstract
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Immunostimulation effects of the cell wall components isolated from Lactobacillus plantarum were investigated by studying the macrophage´s tumorcidal activity, splenocyte proliferation, anticomplementary activity and the inhibition of peritoneal tumor cell growth measured with ICR mice inoculated with sarcoma 180. The immunopotentiating cell wall components were a complex of peptidoglycan and exopolysaccharides. The tumorcidal activity of macrophage against Yac1 and B16 tumor cells was enhanced when the cell wall components were added into the macrophage´s culture medium. They also stimulated splenocytes to proliferate up to the same level as when the concanavalin A was added into the splenocyte´s culture medium. The complementary activity was inhibited by 50% when the cell wall components were incubated with the sheep red blood cells treated with hemolysin and guinea pig complement. This result confirmed that the cell wall components had an antitumor effect, because the anticomplementary activity is usually accompanied by an antitumor activity at the same time. This fact was confirmed again by the inhibition of the growth of sarcoma 180 when the cell wall components were injected intraperitoneally into ICR mice inoculated with sarcoma 180. As a result, it is concluded that the cell wall components isolated from Lactobacillus plantarum had multifunctional immunostimulation effects in vitro and in vivo.
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