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Activation of Macrophage by Polysaccharide Isolated from Salicornia herbacea L.

임진수 1 Seog-Ki Lee 1 장인엽 2 하현철 2 임 용 3 김한용 4 박경한 5 윤상필 6

1조선대학교 의과대학 흉부외과학교실
2조선대학교 의과대학 해부학교실
3조선대학교 의과대학 미생물학교실
4서남대학교 의과대학 성형외과학교실
5강원대학교 의과대학 해부학교실
6서남대학교 의과대학 해부학교실

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ABSTRACT

Salicornia herbacea L. is one of the halophytes that can grow in salt marshes, or salt fields along the seashores in Korea. The objective of this study is to investigate the mechanism by which Salicornia Polysaccharide, (SPS) activates macrophages. To analyze macrophage activation and iNOS gene expression, we performed nitrite generation assay, immunohistochemistry, and reverse transcriptase-polymerase chain reaction. A polysaccharide isolated from the Salicornia herbacea L. significantly induces nitric oxide (NO). Immunohistochemical staining of inducible NO synthase (iNOS) showed that the increase of NO was due to the induction of iNOS production. RT-PCR analysis showed that SPS produced significant induction of iNOS gene expression. Immunohistochemical staining of p65 showed that SPS produced strong induction of NF-κB/Rel nuclear translocation. Electrophoretic mobility shift assay further confirmed the activation of NF-κB/Rel by SPS. In conclusion, we demonstrate that SPS stimulates the macrophages to express iNOS gene via the activation of NF-κB/Rel.

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* References for papers published after 2023 are currently being built.