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논문 기본 정보

자료유형
학술저널
저자정보
Jo Seon Ha (Department of Food Science and Biotechnology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea) Jo Kyeong Ah (Department of Food Science and Biotechnology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea) Park Soo-yeon (Department of Food Science and Biotechnology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea) Kim Ji Yeon (Department of Food Science and Biotechnology, Seoul National University of Science and Technology, Seoul 01811, Republic of KoreaDepartment of Nano Bio Engineering, Seoul National University)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology Vol.34 No.4
발행연도
2024.4
수록면
880 - 890 (11page)
DOI
10.4014/jmb.2401.01006

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The immunomodulatory effects of Euglena gracilis (Euglena) and its bioactive component, β-1,3- glucan (paramylon), have been clarified through various studies. However, the detailed mechanisms of the immune regulation remain to be elucidated. This study was designed not only to investigate the immunomodulatory effects but also to determine the genetic mechanisms of Euglena and βglucan in cyclophosphamide (CCP)-induced immunosuppressed mice. The animals were orally administered saline, Euglena (800 mg/kg B.W.) or β-glucan (400 mg/kg B.W.) for 19 days, and CCP (80 mg/kg B.W.) was subsequently administered to induce immunosuppression in the mice. The mice exhibited significant decreases in body weight, organ weight, and the spleen index. However, there were significant improvements in the spleen weight and the spleen index in CCP-induced mice after the oral administration of Euglena and β-glucan. Transcriptome analysis of the splenocytes revealed immune-related differentially expressed genes (DEGs) regulated in the Euglena- and β-glucantreated groups. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses indicated that pathways related with interleukin (IL)-17 and cAMP play significant roles in regulating T cells, B cells, and inflammatory cytokines. Additionally, Ptgs2, a major inflammatory factor, was exclusively expressed in the Euglena-treated group, suggesting that Euglena’s beneficial components, such as carotenoids, could regulate these genes by influencing immune lymphocytes and inflammatory cytokines in CCP-induced mice. This study validated the immunomodulatory effects of Euglena and highlighted its underlying mechanisms, suggesting a positive contribution to the determination of phenotypes associated with immune-related diseases and the research and development of immunotherapies.

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