• 한국자원식물학회지
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• 제23권2호
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• pp.151-156
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• 2010

갈조류 유래 alginate 성분은 간이식술에 있어서 cell microencapsulation시키는 matrix로써 임상적인 응용이 시도되고 있다. 이에 본 연구에서는 alginate의 간세포에 대한 안전성을 평가하기 위하여, 간세포를 자극하는 NO, iNOS, TGF-${\beta}1$, IL-$1{\beta}$의 분비 및 발현량을 측정하였으며, 실험 결과 모두 증가시켰다. Alginate가 간세포를 자극하여 이러한 요소들을 증가시키는 것은 간염 및 간섬유화 등의 간질환을 일으킬 수 있다는 가능성을 제시하고 있으며, 이러한 결과는 간에 적용하는 alginate를 사용시에는 안전성이 요구되는 농도 조절 및 alginate의 자극 효과를 억제할 수 있는 새로운 재료의 첨가 등에 대한 고려를 제시할 수 있을 것으로 사료된다.

• 한국수의병리학회지
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• 제3권1호
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• pp.15-25
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• 1999

To elucidate the mechanism of age-related development in FGS/NgaKIST mice with spontaneous glomerulosclerotic lesion, we examined expression and localization of various cytokine mRNA in the kidney in the progression of diseases. This mouse model is the first to develop spontanously occuring glomerosclerotic lesion in the kidney. In this study, we detected the up-regulation of local cytokine genes such as IL-1$\beta$, IL-2, IL-6, IL-10, TNF-$\alpha$, TGF-$\beta$, and IFN- $\gamma$ in the kidneys. In RT-PCR and Southern blot analysis, we detected gradual expressions of cytokine mRNA of IL-1$\beta$, IL-2, IL-6, IFN- $\gamma$, and TNF $\alpha$ mRNA during the course of disease. Other cytokines including IL -10 and TGF -$\beta$ were found to be appeared the slightly expressed level at 3 to 12 weeks before onset of inflammatory lesion but they are highly expressed at the end-stage of the disease accompaning high proteinurea and wasting. In situ RT-PCR, each cytokine mRNA were specifically localized in a variety of cells including mesangial, endothelial, parietal epithelial, tubular epithelial, arterial muscle cell, and infiltrated inflammatory cells. In addition, TNF - $\alpha$was detected moderately in the visceral and parietal epithelial cell, but weakly in endothelial and mesangial cells, whereas IL-1 $\beta$ and IL -6 were strong in mesangial regions. IL-6 and TNF- $\alpha$ was highly localized in the damaged proximal and collecting tubules. Especially, TGF -$\beta$ mRNA was highly found in mesangial cells within glomerulus and interstitium during the end-stage of this disease.. These results indicate that pro inflammatory cytokines such as IL-1 $\beta$, IL-2, IL-6, and TNF- $\alpha$ were gradually expressed from the early stage of this disease to the end-stage, and that IL-10 and TGF-$\beta$ may be important in the accumulation of extracellular matrix(ECM) within glomerulus and periglomerular fibrosis in the progression of this disease as well as tissue destruction in end-stage of this disease.

• 생명과학회지
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• 제22권7호
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• pp.904-911
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• 2012

야콘(Smallanthus sonchifolius)은 저혈당에 민간요법으로 이용해 오고 있는 구근작물이다. 최근에는 야콘잎이 항산화, 항균, 항진균 활성과 세포보호 기능이 있다고 보고되고 있다. 본 실험에서는 이러한 생리활성을 지니는 야콘잎을 이용하여 흰쥐에 DBTC (8 mg/kg)를 주사하여 췌장염을 유발시킨 후 1% 야콘추출물이 췌장의 섬유화에 미치는 영향을 연구하였다. 유발 21일째 처리군에서 췌장의 실질조직의 많은 부분이 collagen으로 재구성되어 있었으나 유발군에서는 처리군에 비해 현저히 감소되어 있었다. COX-2 발현에서, 대조군은 반응이 나타나지 않거나 매우 약한 반응이었으나, 유발군에서는 14일째 매우 증가되었으며, 특히 21일째는 침윤하고 있는 많은 염증세포에서 COX-2의 발현이 확인되었다. 처리군은 유발군에 비해 발현이 감소되었다. TGF-${\beta}1$ 발현은 21일째 염증세포에서는 유발군이 처리군에 비해 현저한 증가 현상이 나타났으나, 샘꽈리세포에서의 TGF-${\beta}1$의 발현은 처리군에서 증가되었다. VEGF 발현은 TGF-${\beta}1$의 발현과 거의 유사한 경향으로 나타났다. 그러므로 야콘추출물이 DBTC로 유도된 췌장염의 섬유화 진행을 억제하는데 매우 효과적임을 확인하였다.

• 생약학회지
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• 제37권2호통권145호
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• pp.103-109
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• 2006

Advanced glycation end products (AGEs) formation plays an important role in the progression of diabetic complications. To develop effective herbal formulations with suppression of diabetic nephropathy, a common complication in diabetic patients, we evaluated inhibitory activities of KIOM-79, a new herbal prescription, on the formation of AGEs using in vitro and in vivo model systems. Effects of KIOM-79 on the expression of AGEs, RAGEs (receptor for Advanced glycation end products), type IV collagen and renal $TGF-{\beta}1$ mRNA was also examined in streptozotocon (STZ)-induced diabetic rats. STZ-induced diabetic rats were treated orally with KIOM-79 (250 and $500\;kg^{-1}$ once a day for 13 weeks). In vitro system KIOM-79 suppressed the formation of AGEs $(18.12\;{\mu}g/ml)$. In STZ-induced diabetic rats showing accumulation of AGE and RAGE, pathological examination revealed that KIOM-79 prevented AGE and RAGE deposition in the kidney. In STZ induced diabetic rats, the expansion of mesangial matrix and the glomerular tufts seemed to be larger than those in normal rats. Howεver, after administration with KIOM-79, mesangial metrix and glomerular volume were decreased, and overexpression of type IV collagen was also decreased. Overexpression of renal $TGF-{\beta}1$ mRNA was inhibited significantly. These results suggest that the KIOM-79 might be an effective herbal prescription to prevent or alleviate the progression of diabetic nephropathy.

• Journal of Chest Surgery
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• 제44권6호
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• pp.406-412
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• 2011

Background: Development of thoracic aortic aneurysms and aortic dissections (TAAD) is attributed to unbearable wall tension superimposed on defective aortic wall integrity and impaired aortic repair mechanisms. Central to this repair mechanisms are well-balanced and adequately functional cellular components of the aortic wall, including endothelial cells, smooth muscle cells (SMCs), inflammatory cells, and adventitial fibroblasts. Adventitial fibroblasts naturally produce aortic extracellular matrix (ECM), and, when aortic wall is injured, they can be transformed into SMCs, which in turn are involved in aortic remodeling. We postulated the hypothesis that adventitial fibroblasts in patients with TAAD may have defects in ECM production and SMC transformation. Materials and Methods: Adventitial fibroblasts were procured from the adventitial layer of fresh aortic tissues of patients with TAAD (Group I) and of multi-organ donors (Group II), and 4-passage cell culture was performed prior to the experiment. To assess ECM production, cells were treated with TNF-${\alpha}$ (50 pM) and the expression of MMP-2/MMP-3 was analyzed using western blot technique. To assess SMC transformation capacity, cells were treated with TGF-${\beta}1$ and expression of SM ${\alpha}$-actin, SM-MHC, Ki-67 and SM calponin was evaluated using western blot technique. Fibroblasts were then treated with TGF-${\beta}1$ (10 pM) for up to 10 days with TGF-${\beta}1$ supplementation every 2 days, and the proportion of transformed SMC in the cell line was measured using immunofluorescence assay for fibroblast surface antigen every 2 days. Results: MMP-3 expression was significantly lower in group I than in group II. TGF-${\beta}1$-stimulated adventitial fibroblasts in group I expressed less SM ${\alpha}$-actin, SM-MHC, and Ki-67 than in group II. SM-calponin expression was not different between the two groups. Presence of fibroblast was observed on immunofluorescence assay after more than 6 days of TGF-${\beta}1$ treatment in group I, while most fibroblasts were transformed to SMC within 4 days in group II. Conclusion: ECM production and SMC transformation are compromised in adventitial fibroblasts from patients with TAAD. This result suggests that functional restoration of adventitial fibroblasts could well be a novel approach for the prevention and treatment of TAAD.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제33권4호
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• pp.288-296
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• 2007

Distraction osteogenesis(DO) is a technique of lengthning bone including soft tissue by gradual separation of surgically divided bone surfaces. Distraction osteogenesis combination with a compression stimulation(DO-CO) was a new technique by authors to enhance new bone quality and to shorten the consolidation period. The purpose of this study was to compare DO with DO combined with compression force in efficiency by evaluating the expression of TGF-${\beta}1$, osteonectin and BMP-4 on bone regenerate in rabbit mandible. Fourty two rabbits were used for this experiment. On the control group, the distraction was carried out at the rate of 1 mm per day to obtain the amount of 8 mm distraction for 8 days. On the experimental group, the distraction was carried out at the rate of 1 mm per day for 10 days, 3 days-latency period, and then the compression was carried out as counter direction 1 mm per day for 2 days. After 0 day, 5 days, 13 days, 20 days, 27 days, 34 days and 41 days, three rabbits on each group were sacrificed and the distracted portion of mandible were cut and treated for RT-PCR observation. The level of expression of TGF-${\beta}1$ and osteonectin were shown more and longer expression in the experimental group than in the control group. The expression of BMP-4 was maintained with high level during the entire experimental period in both groups. These findings suggested that DO with compression stimulation could be a favorable technique for obtaining a good new bone quality.

• Journal of Chest Surgery
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• 제36권2호
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• pp.109-112
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• 2003

폐 형성에 활성적인 또는 억제적인 기능을 갖고 있다고 알려져 있는 FGF-7 성장인자, BMP수용체 II, 그리고 TGF-$\beta$ 수용체 II 유 전자의 비정상 발현이 폐기포 생성에 관여하는지를 각각의 단일성 클론 항체를 사용하여 수술로 절제된 자연기흉 환자의 폐기포 조직들을 면역조직염색 방법으로 염색하여 관찰하였다. 대상 및 방법: 재발성 또는 지속성 기흉으로 흉강경 또는 개흉술로 폐기포 절제술을 실시한 환자들을 대상으로 하였다. 총 31명의 환자로 15세에서 39세까지 연령분포를 보였으며 남자 30명, 여자 1명이었다. 폐기포 절제는 비디오흉강경이나 소절개개흉술을 통하여 폐기포벽의 손상을 가하지 않게 주의하면서 비디오흉강경용 스태플러(Endo GIA stapler)를 이용하여 절제하였으며 가능한 원형을 유지하여 신선한 상태로 포르마린에 고정하여 면역조직화학적 연구를 위한 표본을 만들었다. 폐기포 조직 슬라이드를 단일클론성 항 TGF-$\beta$ 수용체 II, BMP수용체 II 그리고 FGF-7인자 항체를 이용하여 면역조직학적 염색방법으로 관찰하였다. 결론: 전체 환자 31명중 TGF-$\beta$ 수용체 II항체에 양성 반응을 나타낸 환자수는 모두 24명이었다. 이들 중에는 18명이 강한 양성 반응을 보였고, 6명이 약한 양성 반응을 보였다. 면역조직화학적 염색 결과를 고배율 현미경으로 살펴보면, TGF-$\beta$ 수용체 II의 염색이 기흉과 정상 폐조직 경계 부위에서 특히 강하게 염색됨이 관찰되었다. 이에 반하여, BMP수용체 II 그리고 FGF-7인자의 항체를 이용한 면역조직학적 염색 결과는 모든 환자의 조직들에서 음성으로 관찰되었다. 절론: 폐 조직이 형성될 때, 억제유전자의 역할을 담당하고 있다고 알려진 TGF-$\beta$ 수용체 II의 발현이 증가되면서 폐기포가 생성될 수 있다는 가능성을 제시하였다. 이번 결론은 면역조직학적 염색 실험 결과만으로 밝혀진 사실임으로 좀 더 체계적인 분자생물학적 인 연구가 요구된다.

• 대한화장품학회지
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• 제30권2호
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• pp.221-225
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• 2004

인삼(Panax ginseng C. A Meyer)의 뿌리는 전통적인 항-노화 및 항-주름제로 동양에서 사용되어 왔다. 그러나 인삼의 어떤 성분이 주름 형성을 억제하는데 효과적인지는 아직 밝혀지지 않았다. 최근 인삼의 주요 활성 성분으로 생각되는 ginsenosides가 20가지 이상 분리되었다. 이들 중 본 연구원들은 인삼에 의한 항-주름의 작용기작을 밝히기 위해 세포간질(extracellular matrix, ECM) 물질대사에 있어 ginsenoside Rg3의 진피에서의 효과를 시험하였다. 본 연구에서, ginsenoside Rg3의 항-주름 효과를 연구하기 위해 진피의 세포간질 구성 성분과 성장 인자를 ELISA (enzyme-1in14ed immunosorbent assay) 측정법으로 평가하였다. Ginsenoside Rg3은 human dermal fibroblasts 배양에서 type I procollagen과 fibronectin(FN) 생합성을 농도 증가에 비례하여 촉진시키고(p < 0.05, n=3), 농도에 비례하여 TGF-$\beta$1 수준을 증가 (p < 0.05, n=3) 시키는 것으로 밝혀졌다. RT-PCR 분석에서 AP-1 전사 인자(transcription factor)의 일부인 c-Jun의 mRNA 수준이 human dermal fibroblasts에서 ginsenoside Rg3에 의해 감소되었다. 이들 결과들은 ginsenoside Rg3이 fibroblasts에서 TGF-$\beta$1과 AP-1의 발현을 변화시킴으로써 type I collagen과 FN합성을 촉진시킴을 보여준다.

• 한국식품영양과학회지
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• 제39권10호
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• pp.1452-1458
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• 2010

상처치료 과정 중 ginsenoside Rg1(5,000 ppm, 10,000 ppm) 처리에 의한 효력을 평가하기 위해 SD rats의 등쪽 피부에 biopsy punch를 이용한 4개의 창상을 유발 후, 이 과정에서 일어나는 피부조직의 변화를 관찰하였다. 상처에 Rg1의 도포로 인해 창상치료과정이 활발해짐을 관찰할 수 있었다. Rg1을 처리한 군에서 절개된 상처의 표피화와 수축이 더 빨라졌고 창상면적에 있어서도 양성대조군인 시판연고 도포군과 비교하여 유의하게 줄어들었다. 염색한 조직의 현미경 관찰 결과에서는 정상대조군에서 볼 수 있는 완전한 상피층은 찾을 수 없었으나 Rg1 처리군에서 모낭과 신생혈관이 관찰되었고 상피층의 회복조짐도 관찰되었다. 병변의 TGF-$\beta$ 및 VEGF의 발현량을 조사한 결과 Rg1의 도포에 의하여 더 많은 VEGF의 발현을 유도하고 TGF-$\beta$의 활성화를 차단하여 반흔 형성을 감소시켰다. 이러한 결과를 종합하여 Rg1은 흰쥐의 외과적 창상에 치료효과가 있다고 사료된다.

• 한국동물생명공학회지
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• 제35권4호
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• pp.297-306
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• 2020

The aims of the present study were to confirm that regulation of the PA and environment via TGF-β regulation of sperm by Percoll-separated in porcine uterine epithelial cells. And, it was performed to identify the cytokines (TGF-β1, 2 and 3, TGF-β receptor1 and 2; interleukin, IL-6, IL-8) and PA-related genes (urokinase-PA, uPA; tissue-PA, tPA; PA inhibitor, PAI; uPA-receptor, uPAR) by spermatozoa. The experiment used porcine uterus epithelial cells (pUECs) and uterine tissue epithelial cells, Boar sperm were separated by discontinuous Percoll density gradient (45/90%), and tissues were co-incubated with spermatozoa, followed by real-time PCR. PA activity was measured of sperm by discontinuous Percoll density gradient (45/90%) for 24 hours. To measure viability and acrosome damage of sperm double stained propidium iodide (PI) and SYBR-14 or FITC-PNA were used. In results, binding ratio of Percoll-separated sperm was found no differences, but sperms isolated from 90% Percoll layer reduced PA activity (p < 0.05). when co-cultured sperm selected Percoll in porcine uterus tissues epithelial cells, 90% layer sperm increased TGF-β R1, contrastively tPA and PAI-1 in comparison with control (p < 0.05). 45% sperm was decreased the expression of uPA (p < 0.05). TGF-β decreased PA activity in the supernatant collected from pUECs (p < 0.05). Especially, The group including uPA, PAI-1 were induce sperm intact, while it was reduced in sperm damage when compared to control (p < 0.05). Also, there was no significant difference group of tPA and tPA+I in the dead sperm and acrosome damage compared to control. The expression of tPA and PAI showed a common response. Percoll-separated spermatozoa in 90% layer reduced tPA and IL-related gene mRNA expression. Thus, Percoll-sparated sperm in 90% layer show that it can suppress inflammation through increased expression of TGF-β and downregulation of PA and IL in epithelial cells compared to 45% layer Percoll.