• 한국식품영양과학회지
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• 제21권3호
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• pp.241-246
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• 1992

L-Ascorbic acid (AsA) 생합성이 불가능한 guinea pig을 실험 동물로 하여 collagne 함량이 높은 조직인 폐 및 피부중의 AsA함량과 동일조직중 collagne 함량이 높은 조직인 폐 및 피부중의 AsA 함량과 동일조직중 collagen의 proline잔기의 수산화율을 조사하여 collagne 생합성에 대한 조직중 AsA의 영향에 대해서 알아보았다. Guinea pig(체중 약 250g)를 AsA 무투여군(A), 투여군(B), 300mg/day 투여군(C)으로 나눠 14일간 사육한 후, 마취하에서 개복하여 복부 대동맥으로부터 채혈함과 동시에 간장과 폐를 적출하였으며, 등부위의 피부를 채취하여 분석용 시료로 하였다. 이들 시료로부터 혈청중 alkaline phosphatase (ALP)활성과 각조직중의 AsA 함량, proline 함량 및 그 수산화율, (1-$^{14}$ C) proline 의 incorporation 양을 측정하였다. 그 결과, AsA 토여군인 B, C군의 경우 순조로운 체중증가와 함께 혈청중 ALP활성도 정상값을 나타냈으며 현저한 ALP활성 저하가 관찰되었다. 한편, AsA 함량이 높을수록 (1-14C) proline 의 incorporation 양이 많고 collagne 중의 hydroxyproline 함량도 증가하는 것으로 나타나, 조직중의 collagen합성량과 AsA함량과의 사이에는 높은 상관관계가 존재함이 확인되었다.

• 한국환경성돌연변이발암원학회:학술대회논문집
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• 한국환경성돌연변이발암원학회 2002년도 Molecular and Cellular Response to Toxic Substances
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• pp.80-88
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• 2002

Recent studies demonstrate that collagen IV selectively pro-motes the repair of physiological processes in sublethally injured renal proximal tubular ceils (RPTC). We sought to further define the mechanisms of cell repair by measuring the effects of toxicant injury and stimulation of repair by L-ascorbic acid-2-phosphate (AscP), exogenous collagen IV, or function-stimulating integrin antibodies on the expression and subcellular localization of collagen-binding integrins (CBI) in RPTC. Expression of CBI subunits ${\alpha}_1$, ${\alpha}_2$, and ${\beta}_1$ in RPTC was not altered on day 1 after sublethal injury by S-(1,2-dichlorovinyl)-L-cysteine (DCVC). On day 6, expression of ${\alpha}_1$ and ${\beta}_1$ subunits remained unchanged, whereas a 2.2-fold increase in ${\alpha}_2$ expression was evident in injured RPTC. CBI localization in control RPTC was limited exclusively to the basal membrane. On day 1 after injury, RPTC exhibited a marked inhibition of active $Na^+$ transport and a loss of cell polarity characterized by a decrease in basal CBI localization and the appearance of CBI on the apical membrane. On day 6 after injury, RPTC still exhibited marked inhibition of active $Na^+$ transport and localization of CBI to the apical membrane. However, DCVC-injured RPTC cultured in pharmacological concentrations of AscP (500 ${\mu}$M)or exogenous collagen IV (50 ${\mu}$g/ml) exhibited an increase inactive $Na^+$ transport, relocalization of CBI to the basal membrane, and the disappearance of CBI from the apical membrane on day 6. Function-stimulating antibodies to CBI ${\beta}_1$ did not promote basal relocalization of CBI despite stimulating the repair of $Na^+$/$K^+$-ATPase activity on day 6 after injury. These data demonstrate that DCVC disrupts integrin localization and that physiological repair stimulated by AscP or collagen IV is associated with the basal relocalization of CBI in DCVC-injured RPTC. These data also suggest that CBI-mediated repair of physiological functions may occur independently of integrin relocalization.

• 동의생리병리학회지
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• 제16권4호
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• pp.810-817
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• 2002

This study was carried out to know the effects of sopunghwalhyeoltang-gamibang(hereinafter referred to SPHHT) on the inhibition of arthritis induced by collagen on the mouse. Various experimental were performed in vivo (in DBA/1 J mice which are experimental model of arthritis induced by collagen) to analyse the immunomodulatory effects of SPHHT. The results were obtained as follows: 1. The cytotoxicity against mLFC was not measured in all concentration. 2. The arthritis index, incidence, hind paw edema, delayed-type hypersensitivity reaction, spleen weight were reduced in SPHHT treated group. 3. The expression of CD3 ε +/CD4+, CD3 ε +/CD8+ and CD19+ in peripheral blood mononuclear were reduced in SPHHT treated group. 4. The production of pro-inflammatory cytokines such as IL-6 and TNF-α were significantly reduced in SPHHT treated group. 5. The formation of new bones and synivium were stimulated in SPHHT treated group. Comparison of the results for this study showed that Sopung-hwalhyeoltang-gamibang had immunomodulatory effects. So we expect that Sopunghwalhyeoltang-gamibang should be used as a effective drugs for not only rheumatoid arthritis but also another auto-immune disease. Therefore we have to survey continuously in looking for the effective substance and mechanism in the future.

• Fisheries and Aquatic Sciences
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• 제14권3호
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• pp.174-178
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• 2011

This study aimed to determine the degree of hydrolysis and angiotensin-I-converting enzyme (ACE)-inhibitory activity of Giant Jellyfish Nemopilema nomurai (jellyfish) hydrolysates. The degree of hydrolysis using six proteolytic enzymes (Alcalase, Flavozyme, Neutrase, papain, Protamex, and trypsin) ranged from 13.1-36.8% and the inhibitory activities from 20.46-79.58%. Using papain hydrolysate, we newly isolated and characterized ACE-inhibitory peptides with a molecular weight of 3,000-5,000 Da that originated from jellyfish collagen. The purified peptide (FII-b) was predicted to be produced from an alpha-2 fragment of the type IV collagen of jellyfish. The N-terminal sequence of FII-b was Asp-Pro-Gly-Leu-Glu-Gly-Ala-His-Gly- and showed 87% identity to the collagen type IV alpha-2 fragment of Rattus norvegicus and a predicted protein from Nematostella vectensis, indicating that the ACE-inhibitory peptide originated from the collagen hydrolysate and had an $IC_{50}$ value of 3.8 ${\mu}g$/mL. The primary structure of the fragment is now being studied; this peptide represents an interesting new type of ACE inhibitor and will provide knowledge of the potential applications of jellyfish components as therapies for hypertension.

• Asian Pacific Journal of Cancer Prevention
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• 제15권4호
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• pp.1831-1835
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• 2014

Background: To investigate the relationship between extracellular matrix parameters and texture of prostatic lesions evaluated by transrectal real-time tissue elastography (TRTE). Methods: 120 patients suspicious for prostate cancer underwent TRTE. Targeted biopsies were carried out after 12-core systematic biopsy. Epithelia were stained with hematoxylin-eosin, and Victoria blue and Ponceau S were used to stain elastic-collagen fibers, and picric acid-sirius red for visualization of collagen type I (Col1) and III (Col3). Smooth muscles were visualized by immunohistochemistry. All image analyses were performed in a blind manner using Image Pro Plus 6.0, and the area ratios of epithelium, elastic fibers, collagen fibers and Col1/Col3 were determined. Results: 42 patients with typical elastograms were included in the final data analysis. Significant differences were detected between the benign and malignant groups in the area ratios of epithelium (P = 0.01), smooth muscles and Col1/Col3 (P = 0.04, P = 0.02, respectively). There were no significant differences in the area ratios of epithelium, smooth muscle and elastic fibers between the stiff and soft lesion groups. The area ratio of Col1 was ($0.05{\pm}0.03$) in the stiff group, and ($0.02{\pm}0.01$) in the soft group (P= 0.00). However, the area ratio of Col3 was ($0.03{\pm}0.02$) in the stiff group, and ($0.05{\pm}0.04$) in the soft group (P = 0.16). Col1/Col3 in the stiff group ($1.99{\pm}1.59$) was greater than in the soft group ($0.71{\pm}0.64$) (P = 0.01). Conclusions: Tissue hardness of prostatic tumors was mainly dependent on the Col1 content, Col1/Col3 being higher in malignant than in benign lesions, so the prostate tissue texture can be used as a target for distinguishing between the two with TRTE.

• Journal of Acupuncture Research
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• 제19권2호
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• pp.92-104
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• 2002

Objective : Bee venom (BV) has traditionally been used in Oriental medicine to relieve pain and to treat inflammatory disease such as rheumatoid arthritis (RA). Autoimmunity to type II collagen (CII) may involve in the pathogenesis of RA. This study was performed to evaluate the effect of BV on type II collagen induced arthritis (CIA) with the naked eye, a immunohistochemical method and the examination of histology. Method : Male mice were immunized by subcutaneously injection of an $200{\mu}g$ emulsion mixed with bovine CII and complete Freund's adjuvant (CFA) twice for two weeks. In the control group, normal saline was injected, and in the experimental group, BV was applied. Result : The incidence of arthritis, the mean arthritis index and the number of the arthritic limbs of the BV group were all significantly lower than those of the control group. Among the pro-inflammatory cytokines, the production of $TNF-{\alpha}$ in the BV group was also suppressed compared with the control group, but $IL-1{\beta}$ was not. The examination on the histopathology of joints of CIA mice showed the effect of Bee Venom Herbal Acupuncture on the arthritis. Conculusion : Treatment with BV resulted in inhibition of development of arthritis and immune responses to CII.

• 한국동물생명공학회지
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• 제34권1호
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• pp.20-29
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• 2019

Soy isoflavones have been reported to possess many physiological activities such as antioxidant activity and inhibition of cancer cell proliferation. This study investigated the photoprotective effects of soybean extract in human fibroblast cell line and hairless mice model. Human fibroblast was treated with soybean extract before and after ultraviolet B (UVB; 290-302 nm) irradiation. In the soybean extract treated group, the cells showed better resistance to ultraviolet (UV) than control group. The amount of type I collagen recovered from the soybean treated group was higher than the vehicle group exposed to UV-induced damage. Moreover, increased expression of metalloproteinases-1 as a result of UV irradiation was suppressed by the soybean extract. Female mice were orally administered soybean extract and irradiated with UVB light for 8 weeks. The effects of the soybean extract on the skin appearance, collagen deposition and epidermal thickness in the UV-damaged mouse skin were analyzed using histopathological methods. In soybean extract treated group, the skin had a better morphology than that of the control group. Furthermore, the amount of type I collagen was increased and overexpression of MMP-1 was reduced in the soybean extract group compared to vehicle group. Additionally, up-regulation of pro-inflammatory cytokines induced by UV irradiation was suppressed by dietary soybean extract treatment. It appears that soybean extract had a photoprotective effect, including anti-aging and anti-inflammatory effect, from UV-induced damage in not only human fibroblast, but also hairless mice. We confirmed that these effects were possibly due to promotion of collagen synthesis and inhibition of MMP-1 expression.

• Biomolecules & Therapeutics
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• 제18권3호
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• pp.300-307
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• 2010

Photosensitized peroxidation of membrane lipids has been implicated in skin pathologies such as phototoxicity and premature aging. We have previously reported that syriacusin compounds isolated from Hibiscus Syriacus inhibited lipid peroxidation. Here, we investigated whether syriacusins could be effective inhibitor to skin aging using ultraviolet-irradiated human dermal fibroblast cells (HDFCs). Syriacusins A, B, and C inhibit the activity of human neutrophil elastase (HNE), a serine protease to degrade extracellular matrix (ECM) proteins including elastin, with $IC_{50}s$ of 8.0, 5.2, and $6.1\;{\mu}M$, respectively. No changes in cell viability were detected by syriacusins A and B in UV-B ($10\;mJ/cm^2$) irradiated HDFCs. Matrix metallo-proteinase (MMP)-1 expression in HDFCs was increased by UV-B irradiation. MMP-1 expression in UV-B irradiated HDFCs was decreased by $10\;{\mu}M$ and $20\;{\mu}M$ syriacusin A to 50% and 20% of untreated control, respectively. Syriacusin B treated with $20\;{\mu}M$ reduced MMP-1 expression in UV-B irradiated HDFCs to 60% of untreated control. Syriacusin A also inhibited MMP-2 expression accompanying the increase of type-I pro-collagen in UV-B irradiated HDFCs. These results demonstrate that syriacusin A could be a more effective compound to inhibit skin aging caused by UV irradiation. It suggests that syriacusins A and B might be developed as possible agents to treat or prevent skin aging.

• 대한한의학회지
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• 제39권4호
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• pp.40-50
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• 2018

Objectives: The aim of this study is to investigate anti-inflammatory effects of Kyungheechunggan-tang (KHCGT) on LPS- induced RAW 264.7 cells and LX-2 cells and anti-fibrotic effects of KHCGT on LX-2 cells. Materials and Methods: Three types of KHCGTs (KHCGT-A, -B, and -C) by narrowing down the number of constituent herbs from 9 (KHCGT-A) to 5 (KHCGT-B) and to 3 (KHCGT-C) were developed. To understand pharmacological effects of KHCGT, three types of KHCGTs were treated on RAW 264.7 cells and LX-2 cells. Anti-inflammatory activities of KHCGT were evaluated by ELISA assay for pro-inflammatory cytokines, IL-6, $TNF-{\alpha}$ and IL-10, in LPS-stimulated RAW 264.7 cells and for IL-6 production in LPS-induced LX-2 cells. In addition, anti-fibrotic effects of KHCGT were determined by quantitative real-time PCR assay for fibrosis-related genes, ${\alpha}-SMA$, collagen1A1, TIMP1, MMP-2, in LX-2 cells. Results: KHCGT-A and KHCGT-C showed inhibitory effects on secretion of IL-6 in LPS-stimulated RAW 264.7 cells and LX-2 cells. KHCGT-B and KHCGT-C exhibited inhibitory effects on the expression of pro-inflammatory cytokines such as IL-6, $TNF-{\alpha}$, and IL-10 in LPS-stimulated RAW 264.7 cells. The mRNA expression levels of collagen1A1 and MMP-2 were significantly reduced by KHCGT-C whereas TIMP-1 was suppressed by KHCGT-A and KHCGT-B in LX-2 cells. Among three different formulas, KHCGT-C demonstrated the most remarkable effects on inflammation and fibrosis. Conclusions: In this study, KHCGT showed both anti-inflammatory and anti-fibrotic effects which make it to be a prospective agent for chronic liver diseases with inflammation and fibrosis.

• 대한한방부인과학회지
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• 제22권1호
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• pp.53-78
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• 2009

Purpose: In this study, we investigated the anti-thrombotic and antiinflammatory efficacy of "Gamijoukyungtang(GJKT)". Methods: We studied inhibitory effects of platelet aggregation, FXa activation, $TXB_2$ and $PGE_2$ biosynthesis and suppressive effects of GPIIb/IIIa activity and oxidative damage, pro-inflammatory cytokine reduction effects of 'GJKT(by press extractor)/GJKT-1(by pressless extractor)' in vitro. Also, we studied suppression of pulmonary embolism, AV shunt model in rats and shortening of Rat tail bleeding time in vivo. Results: GJKT/GJKT-1 extract showed inhibitory effects on GPIIb/IIIaactivities and platelet aggregation induced by ADP, epinephrine, collagen and arachidonic acid. They suppressed biosynthesis of $PGE_2$ but GJKT-1 only supressed biosynthesis of $TXB_2$. In FXa assay, they inhibited activation of FXa. they suppressed pulmonary embolism triggered by collagen and epinephrine. In AV shunt model, they decreased the weights of AV shunt thrombus. they inhibited pro-inflammatory cytokines and decreased oxidative damages caused by DPPH. Conclusion: We confirmed the anti-thrombosis, and ant-inflammatory efficacy of 'GJKT(by press extractor)/GJKT-1(by pressless extractor)'.