• 한국축산식품학회지
• /
• 제25권2호
• /
• pp.250-256
• /
• 2005

To investigate the effect of bovine colostral whey fractions on in vitro proliferation of mouse splenocytes, polypeptide fractions were separated from acid whey into 3 fractions depending on molecular weight by ultrafiltration: Fraction I, which contains the polypeptide larger than 10,000 Da, Fraction n, which contains the polypeptide ranging from 1,000 Da to 10,000 Da and Fraction III, which contains the polypeptide smaller than 1,000 Da. Fraction II showed the highest proliferative effect of mouse splenocytes among the colostral whey fractions and this proliferative activity increased in dose dependent manner. Unheated Fraction II and Fraction III showed significantly (p<0.01) higher proliferative effects than others but heated Fraction II showed the highest enhancing effect of mouse splenocyte among heated whey fractions (p<0.01). The supplementation of Fraction II and Fraction m showed greater proliferative effect of mouse splenocytes stimulated by concanavalin A (Con A) than that of whole whey or Fraction L Proliferative effect of mouse splenocytes stimulated by phytohemagglutinin (PHA) was the highest when Fraction II was supplemented Proliferative effect of the colostral whey fractions on mouse splenocytes by stimulation of lipopolysaccharide (LPS) was markedly enhanced by supplementation of Fraction II and Fraction m compared with whole whey and Fraction L It was estimated that colostral whey fraction containing IGF-I positively affected proliferation of mouse splenocyte.

• Fisheries and Aquatic Sciences
• /
• 제24권8호
• /
• pp.284-295
• /
• 2021

Red sea cucumber Stichopus japonicus is an invertebrate animal inhabiting in coasts of Korea, China, and Japan. They are traditionally used for food and medicine and well known for their distinctive biologically and pharmacologically important compounds. We investigated the effect of amyloglucosidase (AMG) enzymatic extracts of S. japonicus (AESJ) on the proliferation and cytokine secretion of murine splenocytes stimulated with concanavalin A (Con A). AESJ enhanced the proliferation of splenocytes and the production of IL-2 (Th1 cytokine), IL-1β (Th1 promoting cytokine), and IL-4, IL-10 (Th2 type cytokines) when treated alone. However, under Con A stimulation, AESJ suppressed the proliferation of splenocytes, attenuated the secretion of IL-2, IL-4, IL-10, and enhanced IL-1β secretion. These results suggest that AESJ exhibits immunomodulatory effect by moderating the proliferation of splenocytes and the secretion of IL-2, IL-1β, IL-4, and IL-10 differently depending on the absence and presence of Con A stimulation. These data evidence the immunomodulatory potential of AESJ, which can be further developed into a functional food mediating homeostasis.

• 한국미생물·생명공학회지
• /
• 제36권2호
• /
• pp.135-141
• /
• 2008

함초(Salicornia herbacea)는 염습 지대에서 자생하는 명아주과에 속하는 일년초 식물로서 우리말로는 퉁퉁마디라고 불리우며, 식용과 약용으로 이용되고 있다. 건조된 함초로부터 열수 추출을 하여 조추출물(CSP)을 얻었으며, 조추출물을 한외 여과 및 gel 여과를 통해 다당체I(SP I)과 다당체 II(SP II)를 얻었다. 이렇게 얻은 함초 추출물들은 마우스 면역 조절 활성을 확인하는데 사용되었고, 실험은 시험관 내 실험과 생체 내 실험으로 나누어 진행되었다. 시험관 내 실험에서는 $7{\sim}8$주 된 Balb/c 마우스로부터 비장 세포와 T 세포를 분리하여 시료를 농도별(0.5, 1, 2, 4 mg/mL)로 처리한 후 일정 시간 배양하여 MTS assay를 통해 세포 증식능을 확인한 결과, 비장 세포와 T 세포에서 각각 4 mg/mL 농도로 24시간 배양한 경우 시료를 처리하지 않은 대조군에 비하여 SP I이 3.2, 3.5배로 유의적인 세포 증식 활성을 나타내었다. 생체 내 실험에서는 $7{\sim}8$주 된 Balb/c마우스를 대조군과 투여군으로 나누어 7일 동안 경구 투여를 실시하였는데, 실험 종료 후 비장 세포를 적출하여 mitogen을 이용한 세포 증식능을 확인한 결과, SP I을 경구 투석한 비장 세포가 가장 높은 세포 증식능을 보였다. 즉, 함초로부터 조추출물과 다당체를 획득하여 이들에 대한 면역 활성능을 확인한 결과, 조추출물과 다당체에서 면역 세포 활성 증강 효과를 보였는데, 조추출물보다 다당체에서 더 높은 활성을 보였다. 따라서 함초 다당체는 면역 증강 활성을 가진 바이오 헬스 소재로 개발될 수 있을 것으로 기대된다.

• 한국약용작물학회지
• /
• 제15권1호
• /
• pp.38-45
• /
• 2007

한국산 겨우살이 (Viscum album L)는 면역조절작용이 있음이 밝혀졌다. 본 연구에서 한국산 겨우살이 열탕추출물 M11C (non-lectin components)가 비장세포를 활성화시켜 $IL-1\beta$를 생산 분비하게 하는지를 조사하였다. 비장세포를 M11C로 자극한 후, 배양액을 수집 혹은 세포 용해물을 수거해 $IL-1\beta$ 분비와 전사량을 ELISA, immunoblotting, RT-PCR로 검사했었다. 비장세포로부터 $IL-1\beta$ 분비와 전사 효과에 있어서 M11C는 농도 의존성과 자극시간 의존성을 보였다. 비장세포로부터 최대의 $IL-1\beta$ 분비를 위한 M11C의 최대의 농도와 자극시간은 각각 $200{\mu}g/m\ell$와 8시간 이었다. 그리고 최대 $IL-1\beta$ mRNA 전사를 위한 M11C의 최대의 농도와 자극시간은 각각 $200{\mu}g/m\ell$와 4시간 이었다. 최대의 전사시간은 최대의 분비시간보다 4시간 빨리 도달된 것으로 나타났다. 이러한 최대의 $IL-1\beta$ 분비효과가 당분해효소인 Viscozyme L에 의해 완전히 저해되었다. 이는 M11C (non-lectin components)의 구성물질 들 중 다당체 혹은 올리고당들이 $IL-1\beta$ 생산 분비를 유도하는 주된 물질임을 말해주고 있다.

• 동의생리병리학회지
• /
• 제16권1호
• /
• pp.186-191
• /
• 2002

The purpose of this study is to prove the efficacy of KamiBohuh-tang(KBT) on immunoregulation and the possibility of KBT as an immunoadjuvant. KBT with solid feed was administered orally once a day for 7 days to an experimental group, a solution of salt and solid feed without KBT to a control group. After a week T cell, B cell, cytokines, nitric oxide and phagocytic activity are measured. KBT enhanced the proliferation of splenocytes and the subpopulation of Th cells in splenic T-Iymphocytes, but did not affect the proliferation of thymocytes. KBT decreased the subpopulation of T-Iymphocytes in splenocytes. KBT enhanced the production of interferon-γ. interleukin-2, interleukin-4 in mice serum and the phagocytic activity in peritoneal macrophages but it suppressed the production of nitric oxide. These results suggest that KBT is a potent prescription on immune response via the increase of the proliferation of splenocytes, the production of cytokines from splenic Th cells and the phagocytic activity in vivo.

• Biomolecules & Therapeutics
• /
• 제9권3호
• /
• pp.194-200
• /
• 2001

Phellinus linteus (PL)-hot water extract (PL-W) or- methanol extract (PL-M) was orally administered alone (single dose of 400, 800, 1600 mg/kg; 800 mg/kg/day for 5 days) or with cyclophosphamide (CY, 20 mg/kg, i.p.) to female ICR mice. Within PL alone-treated group, WBC and plaque forming cells (PFC) to SRBC were slightly and significantly enhanced when compared with control group. The relative thymus and spleen weights, WBC and PFC numbers were significantly decreased by the treatment of CY, whereas those values were markedly increased by the concomitant treatment of CY and PL when compared with CY administration alone. To assess the effects of PL and/or CY on the mitogen response of splenocytes io LPS, mouse splenocytes were stimulated with or without LPS in the presence of various concentration of PL and/or CY in vitro and splenocytes proliferation (SP) was measured by MTT assay. PL alone increased both SP and LPS- stimulated SP. Moreover, SP and LPS-induced SP suppressed by the treatment of CY alone were significantly restored by PL-treatment. These activities were higher by PL-M than by PL-W, These results indicated that PL was able to increase humoral immunity and to inhibit immunotoxicity induced by CY.

• Biomolecules & Therapeutics
• /
• 제15권4호
• /
• pp.230-234
• /
• 2007

In anti-cancer therapies, radiotherapy and chemotherapy show a superior inhibition effect on cancer cell growth, but those are very toxic to normal tissues and organs. Particularly, drugs for neutropenia, one of chemotherapy agents, which suppress the function of bone marrow, are needed to be controlled in terms of their dosage and therapy period because of their side effect. Phellinus linteus polysaccharide (PL) has been reported to increase the number of splenocytes and bone marrow cells. PL has been shown to decrease the side effects of cyclophosphamide (CYC) treatment to the cancer patients. PL showed no effects in semisolid clonogenic assay, suggesting that PL doesn't contain substantial compounds to substitute for colony stimulating factors (CSFs). On the other hand, PL increased the expression of SCF, IL-3, GM-CSF, TPO genes. These results indicate that PL may promote the growth and proliferation of splenocytes and bone marrow cells through indirect or CSFs-dependent pathway, which may lead to a hematopoiesis.

• Biomolecules & Therapeutics
• /
• 제16권4호
• /
• pp.403-409
• /
• 2008

Eclipta prostrata grows abundantly in the tropical and the sub-tropical parts of the world including most part of the Korean Peninsula. The plant has been traditionally used for the treatment of a number of inflammatory diseases including hepatitis and enteritis but the nature of its immuno-modulating activity needs more studies. In this study, water-soluble sugar-containing fractions were purified from the herb and their effects on the culture of mouse splenocytes were examined. One of the fractions significantly suppressed apoptosis of the splenocytes in culture, which involves the gene expression regulation of a number of cytokines and cytokine receptors including MIP1-$\beta$. This study could explain an immunological activity of Eclipta prostrata and would lead to identify an immuno-active compound from the plant.

• 약학회지
• /
• 제49권1호
• /
• pp.92-96
• /
• 2005

In order to investigate the effects of bisphenol A (BPA) on cell mediated immune reaction in vitro we examined the allogenic mixed lymphocyte reaction (MLR), splenocytes proliferation (SP) to T cell mitogens and IFN-${\gamma}\;production$. Splenocytes of Balb/c mice ($1.5{\times}10^5$ cells/well) were co-cultured with different numbers of mitomycin C-treated mature dentritic cells (DCs) in presence of BPA (25, 50, 100 ${\mu}M$) and $[^{3}H]$thymidine incorporation (cpm) was measured by scintilation counting. Splenocytes ($2{\times}10^6$ cells/well) were cultured with mitogens, Con A ($2\;{\mu}g/ml$), PHA ($5\;{\mu}g/ml$) and IL-2 ($0.1\;{\mu}g/ml$), or PMA ($5\;{\mu}g/ml$) and INO ($1\;{\mu}g/ml$) in presence of BPA (1, 10, 25, 50, 100 ${\mu}M$) and SP was assessed by MTT assay. $IFN-{\gamma}$ levels in culture supernant were determined by ELISA. At low concentration, BPA slightly increased MLR, SP and $IFN-{\gamma}$ levels, but at higher concentration it showed significant inhibitory effects on these immunological parameters. These results indicate that BPA is able to alternate cell-mediated immune reaction.

• 동의생리병리학회지
• /
• 제20권1호
• /
• pp.125-130
• /
• 2006

The purpose of this research was to investigate the effects of Bopaewon-tang (BT) on immune reaction in mice. BT (500 mg/kg, p.o.) increased the viability of thymocytes, but decreased the viability of splenocytes in vivo. BT enhanced the population of $CD4^+$cells in thymocytes and enhanced the population of $Thy1^+$ cells in splenocytes and splenic $CD8^+$ cells. Also, BT decreased the production of IL-4 from splenocytes. Furthermore, BT enhanced the production of nitric oxide and the phagocytic activity of peritoneal macrophages. These results suggest that BT enhances the immune response via activation of thymocytes and macrophages.