• 한국식품영양과학회지
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• 제46권3호
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• pp.306-313
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• 2017

본 연구에서는 전통적인 기능성 식품이자 의약품으로 사용되었던 자죽염(PubS)과 복분자를 조합한 복분자 자죽염(PuBS-R)을 사용해 비특이적, 선천성 면역에 중요한 역할을 하는 대식세포에서의 영향을 확인하였다. PuBS-R은 마우스 대식세포인 Raw264.7 세포에서 $1,000{\mu}g/mL$ 농도처리 시 세포의 증식을 유발하였으며, 그에 반해 PuBS를 $1,000{\mu}g/mL$ 처리 시 유의하게 세포 증식률이 억제되었다. 이어서 면역 관련 사이토카인 $TNF-{\alpha}$, $IFN-{\gamma}$, IL-12, IL-10 등을 유전자 단계와 단백질 단계에서 평가하였다. 그 결과 PuBS-R은 50, 100, $500{\mu}g/mL$에서 유의한 증가율을 보였고, 무엇보다 이것은 PuBS 군에 비해서도 월등한 증가율을 확인할 수 있었다. 마지막으로 마우스의 복강에서 분리한 peritoneal macrophage에 PuBS-R을 처리 후 $TNF-{\alpha}$, $IFN-{\gamma}$, IL-12, IL-10, iNOs를 단백질 단계에서 평가한 결과, Raw264.7 세포에서 얻은 결과와 동일한 결과를 확인할 수 있었다. 이러한 결과로 미루어 보아 PuBS-R은 인체의 대식세포 활성의 증가를 통해 비특이적, 선천성 면역력을 증가시킬 것으로 판단되며, 이러한 결과를 바탕으로 추후 실험동물을 이용한 in vivo 후속 연구를 통해 PuBS-R의 면역증강 기능성 식품 개발이 가능할 것으로 생각된다.

• Journal of Animal Science and Technology
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• 제64권1호
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• pp.166-182
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• 2022

Deer antler velvet is widely used in traditional medicine for its anti-aging, antioxidant, and immunity-enhancing effects. However, few studies have reported on the discovery of probiotic strains for deer antler fermentation to increase functional ingredient absorption. This study evaluated the ability of probiotic lactic acid bacteria to enhance the concentrations of bioactive molecules (e.g., sialic acid and gamma-aminobutyric acid [GABA]) in extracts of deer antler velvet. Seventeen strains of Lactobacillus spp. that were isolated from kimchi and infant feces, including L. sakei, L. rhamnosus, L. brevis, and L. plantarum, and those that improved the life span of Caenorhabditis elegans were selected for evaluation. Of the 17 strains, 2 (L. rhamnosus LFR20-004 and L. sakei LFR20-007) were selected based on data showing that these strains increased both the sialic acid and GABA contents of deer antler extract after fermentation for 2 d and significantly improved the life span of C. elegans. Co-fermentation with both strains further increased the concentrations of sialic acid, GABA, and metabolites such as short-chain fatty acids and amino acids. We evaluated the biological effects of the fermented antler velvet (FAV) on the antibacterial immune response in C. elegans by assessing worm survival after pathogen infection. The survival of the C. elegans conditioned with FAV for 24h was significantly higher compared with that of the control worm group fed only normal feed (non-pathogenic E. coli OP50) exposed to E. coli O157:H7, Salmonella typhi, and Listeria monocytogenes. To evaluate the protective effects of FAV on immune response, cyclophosphamide (Cy), an immune-suppressing agent was treated to in vitro and in vivo. We found that FAV significantly restored viability of mice splenocytes and immune promoting-related cytokines (interleukin [IL]-6, IL-10, inducible nitric oxide synthase [iNOS], interferon [IFN]-γ, and tumor necrosis factor [TNF]-α) were activated compared to non-fermented deer antlers. This finding indicated the protective effect of FAV against Cy-induced cell death and immunosuppressed mice. Taken together, our study suggests that immune-promoting antler velvet can be produced through fermentation using L. rhamnosus LFR20-004 and L. sakei LFR20-007.