가토 신피질 절편에서 Uric Acid 이동

이성태(Yee, Sung-Tae),임채준(Lim, Chae-Joon),우재석(Woo, Jae-Suk),김용근(Kim, Yong-Keun) 대한생리학회 1987 대한생리학회지 Vol.21 No.2

Uric acid transport across the basolateral membrane of renal proximal tubules was studied in rabbit kidney cortical slices. Uric acid uptake was greater under O₂ atmosphere compared to under N₂ atmosphere, and was increased with Na²⁺} concentration in incubation medium. Uric acid inhibited PAH uptake but not TEA uptake and did trans-stimulated PAH efflux. PAH also inhibited uric acid uptake. Uric acid uptake was inhibited by harmaline, ouabin, SITS, DIDS and pyrazinoic acid. The inhibition of PAH uptake by these inhibitors also was reasonably comparable to that of uric acid uptake. These results suggest that uric acid was transported across the basolateral membrane of renal tubule by a carrier-mediated process which was by a common transport system with PAH in rabbit.

일부 한약재의 생쥐 대식세포 일산화질소와 TNF - α생산 유도

이성태(Sung-Tae Yee),정영란(Young-Ran Jeong),하미혜(Mee-Hye Ha),김성호(Sung-Ho Kim),변명우(Myung-Woo Byun),조성기(Sung-Kee Jo) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.2

본 실험에서는 일산화질소(nitric oxide)와 TNF-α생산에 미치는 8가지 종류의 한약재를 조사하였다. 생쥐 대식세포주(RAW264.7)에 한약재 추출물인 당귀, 어성초, 오가피, 황기 등 4가지 종류의 한약재를 IFN-γ와 처리했을 때 NO와 TNF-α생산은 IFN-γ와 추출물 농도에 의존적으로 유도되었지만, 이들 한약재만을 단독으로 처리했을 때는 NO와 TNF-α생산을 유도하지 못하였다. 이런 결과는 세포주가 아닌 복강 대식세포에서도 동일하게 NO와 TNF-α생성에 대한 상승효과가 나타났다. 최적 농도는 추출물이 100 μg/mL일 때, IFN-γ의 농도가 100 U/mL일 때였다. 그리고 NO 합성효소인 iNOS의 mRNA 발현양도 증가시켰다. 이때 IFN-γ와 추출물로 유도된 NO는 NOS 억제제인 N^GMMA에 의해 억제되었다. 이러한 추출물의 NO 생산 유도는 TNF-α 생산을 증가시킨 결과로 인한 간접적인 효과로 생각된다. 이상의 결과로 당귀, 어성초, 오가피, 황기 추출물을 IFN-γ와 동시에 처리하였을 때 생쥐 대식세포주와 복강 대식세포의 iNOS, NO,TNF-α합성를 유도하는 것으로 나타났다. In this experiment, we show the effects of herbal plant extracts on the production of nitric oxide (NO) and TNF-α. The extracts of Angelica gigas, Astragalus membranaceus, Acanthopanax sessiliflorus and Houttuynia cordata had no effect on NO synthesis by itself in mouse macrophage cell line (RAW264.7). However, the stimulation with these extracts in the presence of murine interferon-γ (mIFN-γ) resulted in increased NO synthesis. When these extracts were used in combination with mIFN-γ, there were a marked cooperative induction of NO and TNF-α synthesis in a dose-dependent manner. The same results were obtained in the mouse peritoneal macrophages used. The optimal concentration of these extracts on NO synthesis was shown at 100 μg/mL with 100 U/mL of mIFN-γ. NO synthesis was inhibited by N^G -monomethyl-L-arginine. When cell lines were treated with extracts, the expression of inducible NO synthetase (iNOS) was markedly increased in RT-PCR analysis. In addition, synergy between mIFN- γ and extracts was dependent on extracts-induced tumor necrosis factor-α (TNF-α). Theses results suggest that water extracts of herbal plants can induce iNOS, NO and TNF-α synthesis of mouse macrophage cell line (RAW264.7) and peritoneal macrophages in combination with mIFN-γ.

감초로 배양한 표고버섯 균사체 추출물이 항암 효과 및 알레르기 억제 효과 검증

배만종,이성태,예은주,Bae, Man-Jong,Yee, Sung-Tae,Ye, Eun-Ju 동아시아식생활학회 2007 동아시아식생활학회지 Vol.17 No.1

This study investigated the effects of mycelia of Lentinus edodes mushroom-cultured Glycyrrihiza radix(LMG) on cancer cell lines and sarcoma 180(S-180), as well as on human mast cells. In an anti-cancer tests using Hep3B(hepatic cancer cell), MCF-7(breast cancer), and HeLa(uterine cancer) cells, LMG extract exhibited greater anti-proliferation effects than Glycyrrihiza glabra(GG) extract. LMG extract multiplication restraining effects were 60% that of ethanol at 3 mg/mL extract also displayed tumor suppressive effects in mice injected with S-180 cells. The growth-inhibition rates against tumor cells were 56% for LMG and 37% for GG. When LMG was added to human mast cells, the Intensity of RT-PCR products using primers($FC{\varepsilon}RI\;c-kit$) decreased. significantly compared with that of control. These results suggest that Lentinus edodes Mushroom-Cultured Glycyrrhiza glabra has an anti-proliferation effects against cancer cell lines(Hep3B, MCF-7 and HeLa) and S-180 tumors and will be also beneficial in treating allergic reactions.

백작약 조다당분획에 의한 B 세포 증식의 특성

박혜란,함연호,이성태,백상기,조성기,Park, Hae-Ran,Ham, Yeon-Ho,Yee, Sung-Tae,Paik, Sang-Gi,Jo, Sung-Kee 대한면역학회 2001 Immune Network Vol.1 No.2

Background : Paeonia japonica Miyabe is a medicinal plant which has been widely used as a component of blood-building decoctions (Chinese medicinal concept : Bu-Xie). The immunopharmacological characteristics of the extract of Paeonia japonica (PJ) were investigated. Methods : The effects of fractions of PJ extract on lymphocyte proliferation were measured by $H^3$-thymidine incorporation assay. The proliferated lymphocyte subsets were analyzed in flow cytometry. The subset cell populations of spleen cells were separated by magnetic cell separation system, and their proliferation by the extract were investigated. The effect of the extract on antibody production was determined in mice challenged with sheep red blood cells (SRBC) using hemolytic plaque forming cell assay. Results : Spleen cells were proliferated by water extract of PJ. Polysaccharide fraction (PJ-P) of the extract was most active in the proliferation. It was found in flow cytometry that the lymphocyte subset proliferated by PJ-P was B cell population. Among the separated subset cell populations, T cell-depleted cell population and macrophage-depleted cell population were most proliferated by PJ-P. However, positively selected populations of B cells and T cells were not proliferated by PJ-P. These results indicate that B cell proliferation by PJ-P may require the assistance of macrophages or T cells. These results suggest that firstly PJ-P may stimulate macrophages or T cells, and then B cells are activated. The number of antibody-secreting cells was increased by administration of PJ-P in mice immunized with SRBC as a T-dependent antigen. Conclusion : These results suggest that macrophages and accessory cells are directly activated by PJ-P and then helper T cells and B cells are indirectly activated. As the results, immune responses might be coordinately improved. In conclusion, PJ-P, a polysaccharide of P. japonica, may be a characteristic immunostimulator, which is analogous to polysaccharides such as lentinan, PSK and ginsan.

마우스 비장내 수은의 미세구조적 위치

조현욱,김명훈,이성태,Cho, Hyun-Wook,Kim, Myung-Hoon,Yee, Sung-Tae 한국현미경학회 1998 Applied microscopy Vol.28 No.4

The autometallographic method was used to demonstrate the localization of mercury deposits in spleen of mouse. The mercury deposits were identified with the light and electron mocroscope. Mice were treated with methylmercuric chloride in the drinking water (demineralized water) for 40 days. Control and mercury treated groups showed no significant differences in mean body weight and spleen weight per one mouse. Mercury grains were appeared in the germinal center of white pulp consist of a preponderancing lymphocytes, not in red pulp and capsule. At the ultrastructural level, mercury deposits were restricted to lysosomes of macrophage and lymphocyte. Specially, volume in lysosomes of the macrophage was increased. These results suggest that mercury localization in lysosomes is associated with the change of immune activity.

뽕잎발효차 제조에 따른 in vivo 상에서의 S-180 항암 및 항알레르기 효과

예은주(Eun-Ju Ye),이성태(Sung-Tae Yee),배만종(Man-Jong Bae) 한국식품영양과학회 2010 한국식품영양과학회지 Vol.39 No.3

본 연구는 식용식물로의 가치뿐만 아니라 약용으로 가치가 인정되는 뽕잎에 미생물 생균제를 이용한 뽕잎발효차 개발을 통하여 기능성 소재 개발 및 새로운 제품 개발의 방안을 제시하고자 뽕잎차 및 뽕잎발효차 추출물의 S-180 고형암, 항알레르기 활성을 비교분석 하였다. in vivo 상에서 S-180 고형암 억제 효과는 뽕잎차에서 16.67%, 뽕잎발효차에서 17.78%로 나타났다. 뽕잎차 및 뽕잎발효차 추출물의 항알레르기 효과를 검증한 결과 두 군 모두 에탄올 추출물보다 열수 추출물이 히스타민 분비 억제에 더 효과적이었고, HMC-1의 염증성 cytokine을 측정한 결과 추출물 군에서는 에탄올 추출물이 열수 추출물보다 염증성 cytokine의 억제율이 더 높았고 뽕잎발효차군이 뽕잎차군에 비해 더 효과적이었다. 뽕잎발효차 추출물의 기능성이 더 우수한 것은 발효를 통해 생리활성 물질이 생성된 것이 원인으로 사료되며 이 점에 있어 구체적인 연구가 필요하다고 판단된다. The principal objective of this study was to compare and analyze the qualitative properties of MLT (mulberry leaf tea) and FMLT (fermented mulberry leaf tea) on the basis of the anti-cancer and anti-allergy activities of various extracts. The inhibitory effect against S-180 solid cancer in vivo were measured as 16.67% for FMLT and 17.78% for MLT. When the anti-allergy effects of the extracts of MLT and FMLT were evaluated, the hot water extract was shown to block histamine secretion more effectively than the ethanol extract for both groups. Furthermore, when the levels of the inflammatory cytokine of HMC-1 were measured, the ethanol extract was found to inhibit the inflammatory cytokine more effectively than the hot water extract, and the FMLT group was more effective than the MLT group.

일부 한약재의 수지상세포 활성화 효과

김도순,박정은,조현욱,주우홍,이성태,Kim, Do-Soon,Park, Jung-Eun,Cho, Hyun-Wook,Joo, Woo-Hong,Yee, Sung-Tae 한국생명과학회 2007 생명과학회지 Vol.17 No.3

본 실험에서는 일부 한약재를 이용하여 수지상세포의 활성화에 미치는 영향을 알아보았다. 그 결과, 실험에 사용한 여섯 가지 한약재 중 선별된 천궁과 당귀는 수지상세포의 항원 제시 능력에 영향을 미쳐, T 세포 증식 반응을 증가시켰고, IL-2와 IFN-r의 분비를 증가시키는 것으로 나타났다. 또한 이러한 T 세포의 활성은 수지상세포의 세포표면 단백질인 MHC classII와 CD86, 그리고 CD11c의 발현 증가에 의한 것임을 확인 할 수 있었다. 이상의 실험 결과, 본 실험에서 선별된 천궁과 당귀는 수지상세포를 활성화시키는 효과가 있는 것으로 생각된다. Dendritic cells (DCs) play a pivotal roles in the initiation of T cell-mediated immune responses, making them an attractive in immuno vaccines. Angelica gigas and Cnidium officinale were a medicinal herb widely used in Asian countries. In this study, we examined the effects of A. gigas and C. officinale extracts on the DCs functional maturation and phono-type. Immature DCs were cultured in the presence of GM-CSF and IL-4, and the generated immature DCs were stimulated with OVA in the presence or absence A. gigas and C. officinale extracts, respectively, for 24 hours. The antigen-presenting capacity of A. gigas and C. officinale extracts-treated DCs as analyzed by $CD4^+$ helper T cell clone (OVA-specific) proliferation and cytokines (IL-2 and $IFN-{\gamma}$) production were significantly increased. But A. gigas and C. officinale extracts were not directly effected $CD4^+$ helper T cell clone function. Also, the expression of surface co-stimulatory molecules, including major histocompatibility complex (MHC) class II, CD86 and CD11c, is increased on DCs that were stimulated with A. gigas and C. officinale extracts. These results indicate the immunomodulatory properties of A. gigas and C. officinale extracts, which might be medical supplies or health foods.

번행초 추출물의 항염증 및 종양억제 효과

최혜정 ( Hye Jung Choi ),이성태 ( Sung Tae Yee ),권기석 ( Gi Seok Kwon ),주우홍 ( Woo Hong Joo ) 한국미생물생명공학회(구 한국산업미생물학회) 2015 한국미생물·생명공학회지 Vol.43 No.4

본 연구에서는 번행초의 추출물과 분획물의 항염증 효과 및 항암 활성에 대해 연구하였다. 번행초의 항염증 활성은 1 μg/ml LPS로 유도되는 NO 및 IL-1β의 생성이 억제됨을 통해 확인되었다. IL-6 및 TNF-α도 1 μg/ml LPS로 자극된 RAW264.7 세포에서 다당류 추출물을 처리한 후 생성이 감소되었다. 나아가 HX 분획물은 GM-CSF의 생성을 강력하게 억제하는 것으로 확인되었다. 또한 Sarcoma 180을 미리 주사한 ICR 마우스에 MeOH과 다당 추출물을 100 mg/kg/day 복강내 투여시 16.67%의 수명 연장 효과가 관찰되었다. 이상의 결과는 번행초를 이용하여 효과적인 항염증 및 항암제 개발을 위한 사전조사로써 중요한 결과를 제공한다. We examined the anti-inflammatory effect and anti-tumor activity of Tetragonia tetragonioides crude extracts and fractions. The anti-inflammatory activity of T. tetragonioides was exuded through the inhibition of lipopolysaccharide (LPS, 1 μg/ml), induced nitric oxide (NO) and interleukin (IL)-1β production. The production of IL-6 and tumor necrosis factor (TNF)-α also decreased in LPS induced RAW264.7 cells after treatment with polysaccharide (PS) fraction. Furthermore, the hexane (HX) fraction strongly inhibited the granulocytes macrophage-colony stimulating factor (GM-CSF) production. In ICR mice previously inoculated with Sarcoma 180, the life prolongation effects were 16.67% with an intraperitoneal injection of methanol (MeOH) extract and polysaccharide fraction at a dose of 100 mg/kg/day. The results are an important preliminary step toward the development of effective anti-inflammatory and anti-tumor agents using T. tetragonioides.

여지초의 in vitro항암효과 및 면역세포 활성화에 미치는 영향

배만종,예은주,김수정,김재명,이성태,박은미,Bae, Man-Jong,Ye, Eung-Ju,Kim, Soo-Jung,Kim, Jae-Myoung,Yee, Sung-Tae,Park, Eun-Mi 한국식품영양과학회 2007 한국식품영양과학회지 Vol.36 No.4

본 연구에서는 여지초의 cell line상에서의 항암효과(in vitro) 및 면역세포 활성화에 미치는 영향을 검토하여 다음과 같은 결과를 얻었다. 인체유래 위암세포주인 AGS의 형태변화는 여지초 물과 60% 에탄을 추출물 처리 시 농도에 비례하여 세포의 밀도가 감소하였고 세포의 원형화나 손실이 증가하였다. 암세포 주의 증식에 미치는 영향은 AGS의 경우 농도에 비례하여 암세포 증식 억제율이 나타났으며, 물 추출물 $1,000{\mu}g/mL$에서 43.3%, $3,000{\mu}g/mL$에서 69.7%, 60% 에탄을 추출물 $1,000{\mu}g/mL$에서 37.3%, $3,000{\mu}g/mL$에서 75.8%의 억제율을 나타내었다. 여지초 추출물이 비장세포 증식에 미치는 영향은 여지초 물 추출물은 $30{\mu}g/mL$, 60% 에탄을 추출물은 $10{\mu}g/mL$에서 각각 25.0%와 43.2%의 증식반응 증가가 나타났으며, $300{\mu}g/mL$에서는 비장세포의 증식이 무처리 대조군에 비해 낮은 경향을 나타내었다. 여지초 추출물이 비장세포의 사이토카인 생산에 미치는 영향은 IL-2의 경우 여지초 물 추출물 $1{\mu}g/mL$처리군에서 $20.75{\pm}3.54pg/mL$, 60% 에탄을 추출물은 $100{\mu}g/mL$ 처리군에서 $20.75{\pm}7.07pg/mL$로서 $15.75{\pm}7.07 pg/mL$인 무처리 대조군에 비해 모두 31.7%의 증가를 나타내었다 IL-6 분비량 또한 물 추출물 $1{\mu}g/mL$에서 $31.75{\pm}15.91 pg/mL$, 60% 에탄을 추출물 $10{\mu}g/mL$에서 $14.25{\pm}1.77pg/mL$로서 무처리 대조군에 비해 유의한 증가를 보였다. 그리고 물과 60% 에탄을 추출물 모두 $10{\mu}g/mL$에서 무처리 대조군에 비해 각각 69.6%, 25.3%의 $TNF-{\alpha}$ 생산 증가를 유도하였다. This study was designed to investigate the effect of Plebeiae Herba (Salvia plebeia R. Br.) on the proliferation of AGS cell lines and the activation of splenocytes. In an anti-cancer test using AGS cells, water and ethanol extracts of Plebeiae Herba inhibited the growth of AGS cell lines and morphological changes were also observed in a dose-dependent manner. Water extract of Plebeiae Herba showed growth-inhibitory effect of 43.3% at $1,000{\mu}g/mL$ and 69.7% at $3,000{\mu}g/mL$. Ethanol extracts of Plebeiae Herba showed growth-inhibitory effect of approximately 37.3% for $1,000{\mu}g/mL$ and 75.8% for $3,000{\mu}g/mL$. The Plebeiae Herba induced the proliferation of spleen cells and increased interleukin (IL)-2, interleukin (IL)-6 and tumor necrosis factor $(TNF)-{\alpha}$. In conclusion, these results suggest that the Plebeiae Herba seems to have antiproliferationg effect against the AGS cell and acts as a potent immunomodulator.

스트렙토조토신으로 유도한 당뇨 마우스에서 번행초 다당 추출물의 항당뇨 효과

최혜정(Hye Jung Choi),이성태(Sung-Tae Yee),주우홍(Woo Hong Joo) 한국생명과학회 2017 생명과학회지 Vol.27 No.5

번행초는 주요 화합물인 수용성 다당류와 cerebroside의 작용에 기인하여 기대되는 항궤양성 약용작물이다. 스트렙토조토신 유도 당뇨마우스에서 번행초의 다당 추출물(TPE)의 항당뇨 효과는 이전에 보고된 바가 없다. 본 연구는 체중 1 kg 당 65 mg의 스트렙토조토신을 복강에 주사하여 확립된 당뇨 마우스에서 TPE의 항당뇨효과를 측정하기 위해 실시하였다. 100 mg 농도의 TPE를 3주간 투여했을 때, 당뇨 마우스의 체중은 유지되었으며, 혈당, 중성지방, 그리고 lactate dehydrogenase, alkaline phosphatase 및 glutamic pyruvic transaminase가 낮은 수준으로 감소함이 관찰되었다. 또한 내당능 실험에서도 TPE의 투여는 대조군인 당뇨 마우스에 비해 혈당수준을 현저하게 감소시켰으며, 실험 가능한 거의 모든 생화학적 요인을 당뇨마우스에 비해 낮은 수준으로 회복시켰다. 따라서 전통적인 약용작물인 번행초의 잠재적인 항당뇨 효능을 본 연구에서 처음으로 증명하였다. Tetragonia tetragonioides seems to be a promising antiulcer medicinal plant due to the presence of water-soluble polysaccharide and cerebroside as its major constituents. There have been no previous studies using T. tetragonioides polysaccharide extract (TPE) to assess its antidiabetic effect in streptozotocin (STZ)-induced diabetes in mice. This study was designed to evaluate the antidiabetic effect of TPE in diabetic mice, which was established by one-week intraperitoneal injection of 65 mg/kg STZ. After three weeks of TPE treatment at a dose of 100 mg/kg, a maintenance of body weight, a decrement in plasma glucose, and low levels of triglyceride, lactate dehydrogenase, alkaline phosphatase, and glutamic pyruvic transaminase were observed in diabetic mice. Furthermore, the ingestion of TPE lowered the blood glucose levels during the oral glucose tolerance test (OGTT) and restored most of the tested parameters to their normal levels. Therefore, the antidiabetic potential of T. tetragonioides has been demonstrated for the first time by our research.