• 제목/요약/키워드: MIF activation

검색결과 12건 처리시간 0.024초

홍화자약침의 윤활관절막내에서의 MIF활성 억제를 통한 LPS 유발 관절염의 치료 효과 (The Treatment Effect of Honghwa-ja Herbal Acupuncture on Inhibitory MIF Activation on Synovial Membrane by LPS-induced Arthritis)

  • 박원;김경호;이창환;이동건;이현진;황지혜;김갑성
    • Journal of Acupuncture Research
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    • 제24권4호
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    • pp.157-166
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    • 2007
  • Objective : The aim of this study was to investigate anti-arthritic effects of Honghwa-ja herbal acupuncture extract through inhibitory MIF activation. Methods: After Rheumatoid arthritis(RA) knee joint was induced by lipopolysaccharide(LPS) in vivo, Honghwa-ja herbal acupuncture solution was applied on $ST_{35}$(犢鼻) and $EX-LE_{202}$(內膝眼) coresponding human body. To research the effect on the expression of MIF, COX-2, MMP-9 mRNA, RT-PCR was performed on LPS-stimulated Raw 264.7 cells. Results: In the Honghwa-ja herbal acupuncture solution treated Raw 264.7 cell, the mRNA expression of cytokines, RA related inflammation factors, such as the MIF, COX-2, and MMP-9 reduced concentration dependently. Positive reaction of RA-related cytokines MIF, $IL-6R-{\alpha}$, STAT3, COX-2, MMP-9 was reduced. Conclusion : Honghwa-ja herbal acupuncture extract has significant protecting ability against acute progressive RA by inhibiting the production of MIF, as a top in cytokines related to inflammation.

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DU-145 전립선 암세포에 있어서 mifepristone과 tamoxifen이 칼슘조절에 미치는 영향 (Effects of Mifepristone and Tamoxifen on Calcium Modulation in DU-145 Prostate Cancer Cells)

  • 김여름;김병기
    • 생명과학회지
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    • 제20권9호
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    • pp.1324-1331
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    • 2010
  • Mifepristone (MIF)와 Tamoxifen (TAM)은 각각 전립선암과 유방암치료제로 오랫동안 사용되고 있다. MIF는 안드로겐수용체(AR) 양성인 세포와 음성이 세포 모두에서 세포사멸을 유도하며, TAM 은, 리간드-수용체작용 기작의 다양한 특성에 의하여 에스트로겐(ER) 양성인 세포뿐 만 아니라 다른 종류의 암세포에서도 세포사멸을 유도하는 것으로 알려져 있다. 본 연구에서는 AR 음성인 DU-145 전립선암세포에 있어서, MIF와 TAM의 세포독성이 세포 내 칼슘농도 변화에 기인된 세포사멸기작에 의한 것임을 보여준다. MIF와 TAM을 처리시 세포성장은 농도와 시간의존적으로 감소하였으며, confocal laser scanning microscopy (CLSM)과 fluorescence-activated cell sorting (FASC)로 세포를 분석한 결과 각각 MIF와 TAM을 2일간 처리한 세포에서 세포사멸이 진행되는 것을 관찰하였다. 세포독성효과를 비교했을 경우, TAM이 MIF 보다 강하게 작용하였다. MIF와 TAM을 처리한 세포 내 칼슘변화 측정 시, 칼슘농도 또한 처리 약물의 농도와 시간 의존적으로 증가하였다. 1.5 mM 칼슘배지와 칼슘제거된 배지에서의 실험결과를 비교한 바, 세포 내 칼슘증가는 외부로부터의 유입에 의한 것으로 생각된다. 세포독성효과와 마찬가지로 칼슘증대 효과 역시 TAM에서 뚜렷하게 나타났다. 수용체 매개 세포사멸기작의 초기에 관여하는 procaspase-8은 MIF 처리 시 뚜렷이 활성화 되었으나, TAM의 경우 활성화가 MIF의 경우에 비해 강하지 못하였다. 그러나, 세포사멸의 중추적인 역할을 하는 caspase-3은 TAM 을 처리한 세포에 있어서 활성 정도가 훨씬 높았다. 세포사멸과정의 중요한 조절 단백질인 Bcl-2 그룹단백질의 발현을 조사해 본 결과, 세포사멸 억제단백질인 Bcl-2의 발현은 MIF, TAM 처리 시 동일하게 감소한 반면, 촉진단백질인 Bax의 발현은 2-3배 가량 증대되었다. 이상의 결과로 보아 MIF와 TAM은 세포 내 칼슘조절을 통하여 세포사멸을 유도하나, 세포사멸의 초기단계는 MIF와 TAM이 서로 다른 경로를 경유할 가능성이 있는 것으로 생각된다.

Structural characterization of As-MIF and hJAB1 during the inhibition of cell-cycle regulation

  • Park, Young-Hoon;Jeong, Suk;Ha, Ki-Tae;Yu, Hak Sun;Jang, Se Bok
    • BMB Reports
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    • 제50권5호
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    • pp.269-274
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    • 2017
  • The biological activities of macrophage migration inhibitory factor (MIF) might be mediated through a classical receptor-mediated or non-classical endocytic pathway. JAB1 (C-Jun activation domain-binding protein-1) promotes the degradation of the tumor suppressor, p53, and the cyclin-dependent kinase inhibitor, p27. When MIF and JAB1 are bound to each other in various intracellular sites, MIF inhibits the positive regulatory effects of JAB1 on the activity of AP-1. The intestinal parasite, Anisakis simplex, has an immunomodulatory effect. The molecular mechanism of action of As-MIF and human JAB1 are poorly understood. In this study, As-MIF and hJAB1 were expressed and purified with high solubility. The structure of As-MIF and hJAB1 interaction was modeled by homology modeling based on the structure of Ace-MIF. This study provides evidence indicating that the MIF domain of As-MIF interacts directly with the MPN domain of hJAB1, and four structure-based mutants of As-MIF and hJAB1 disrupt the As-MIF-hJAB1 interaction.

자하차약침(紫河車藥鍼)의 MIF 활성 억제를 통한 LPS 유발 류마티스성 관절염의 치료 효과 (Effect of Inhibition Macrophage Migration Inhibitory Factor Activation by Hominis Placenta Herbal Acupuncture on Rheumatic Arthritis)

  • 황지혜;조현석;이현진;이동건;정원제;정찬영;김경호
    • Journal of Acupuncture Research
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    • 제25권3호
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    • pp.41-51
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    • 2008
  • Objectives : This study is to evaluate Effect of Inhibition Macrophage Migration Inhibitory Factor(MIF) activation by Hominis Placenta Herbal Acupuncture(HPA) on Rheumatic Arthritis(RA). Hominis Placenta is the placenta of healthy human, which is vital-strengthening medical stuff. In recent years, Hominis Placenta applied to chronic diseases because it makes us more resistance to diseases. Therefore it is supposed that HPA is effective on RA, a kind of autoimmune disease. When RA is induced, MIF is activated, too. MIF affects the process of inflammatory disease including RA. Methods : In order to investigate the effect of Hominis Placenta extraction on MIF(early RA inducing cytokine) and MMP(Matrix Metallo Proteinase)-9 mRNA expression by means of Reverse Transcriptase- Polymerase Chain Reaction(RT-PCR). In this study, we investigated the effect of Hominis Placenta extraction on MIF(early RA inducing cytokine) and MMP-9 mRNA expression by means of RT-PCR. Besides we investigated changing of MIF in synovial membrane and, Interleukin-6 receptor(IL-6R)-$\alpha$(pro-inflammatory cytokine), Signal transducers and activators of transcription(STAT)-3, MMP-9 after treating mouse, which is artificially attacked with RA, with HPA on its $ST_{35}$, LE201 in vivo. Results : 1. As a result of treating Lipopolysaccharide(LPS)-stimulated Raw246.7cell with HPA, MIF(RA related cytokine) and MMP-9 mRNA expression is reduced in vitro. And this reaction is concentration-dependatant. 2. In synovial membrane of the mice treated with HPA, inhibition of MIF, IL-6R-$\alpha$, STAT3 & MMP-9 activation is observed in vivo. Conclusions : From the above results, it might be suggested that HPA mitigate tissue damage originated from RA, because it intercepts the early process of by inhibition MIF activity.

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접골목(接骨木)추출물 및 약침액에 의한 MIF 활성 조절능이 생쥐의 제2형 Collagen 유발 관절염에 미치는 영향 (Effect of Suppressing the Activation of Macrophage Migration Inhibitory Factor by $Sambucus$ $williamsii$ $H_{ANCE}$ Extract & Pharmacopuncture Solution on Type II Collagen-induced Arthritis)

  • 이동건;김은정;이은솔;왕개하;조현석;이승덕;김갑성;김경호
    • Journal of Acupuncture Research
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    • 제29권1호
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    • pp.103-113
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    • 2012
  • Objectives : The purpose of this study is to evaluate effect of suppressing the expression of cyclo-oxygenase-type-2 (COX-2) as a consequence of inhibition macrophage migration inhibitory factor (MIF) activation by $Sambucus$ $williamsii$ $Hance$ (SWH) pharmacopunctureon rheumatoid arthritis (RA). Methods : In vitro test, synoviocytes extracted from type II collagen-induced arthritis (CIA) mouse's knee joint were cultivated After that, each well of synoviocytes was mixed with the extract of SWH at the dosage of $0.4mg/m{\ell}$, $0.6mg/m{\ell}$, $0.8mg/m{\ell}$, and $1.0mg/m{\ell}$ respectively, and cultivated for 24 hours after the addition. Reverse transcriptase - polymerase chain reaction (RT-PCR) is used to investigate the expression of MIF, Tumor necrosis factor (TNF)-${\alpha}$, COX-2 mRNA. $In$ $vivo$ test, thirty DBA female mice were used, and each ten mice were allocated into three group; normal group, CIA-elicitated group, and group treated with SWH pharmacopuncture on it's the point of $ST_{35}$ after CIA elicitation. It is investigated that change of mice foot thickness, histologic change of sliced synovial joint of mouse, and extent change of MIF, TNF-${\alpha}$, COX-2 in synovial membrane. Results : $In$ $vitro$ test, the expressions of cytokine(MIF, TNF-${\alpha}$, COX-2) mRNAs related to RA were dose-dependent decreased. In the SWH pharmacopuncture group, foot thickness and histologic change of sliced synovial joint were decreased comparing with CIA-elicitated group's change. In the SWH pharmacopuncture group, the suppression of MIF, TNF-${\alpha}$, COX-2 in synovial membrane was clearly shown comparing with CIA-elicitated group's change. Conclusions : It might be suggested that SWH pharmacopuncture mitigate tissue damage originated from rheumatoid arthritis by suppressing the expression of COX-2 as a consequence of inhibition MIF activation.

유근피(楡根皮) 약침이 lipopolysaccharide 유발 류마티스 관절염 모델에서 MIF 활성 억제에 미치는 영향 (The Effectiveness of Ulmus Davidiana Planch Herbal Acupuncture to Inhibit MIF Activation on Lipopolysaccharide-induced Rheumatoid Arthritis Model)

  • 변혁;박인식;조현석;김갑성;이승덕
    • Journal of Acupuncture Research
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    • 제23권6호
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    • pp.117-132
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    • 2006
  • Objectives : The purpose of this study is to investigate the effect of Ulmus davidiana Planch herbal acupuncture solution in LPS-stimulated RAW 264.7 cells and mouse knee joints, perfom1ed several experimental items: those are MIF mRNA, MIF, $TNF-{\alpha}$, $NF-{\kappa}B$ p65, iNOS mRNA, iNOS, NO, synovial hyperplasia, angiogenesis and fibrosis. Methods : In order to observe mRAN expression of MIF and iNOS in LPS-stimulated RAW 264.7 cells, RT-PCR was used. NO production in LPS-stimulated RAW 264.7 cells was measured by nitrite assay. All the female BALB/c mice were bred and maintained in pathogen-free mouse colonies and were 6 weeks of age on beginning of the experiment. The experimental model of RA was induced by injection of $50{\mu}g/kg$ LPS. Ulmus davidiana Planch herbal acupuncture solution was injected into either S 35 (犢鼻) or EX-LE 202 (內膝眼) of mice in turn daily for 19 days. Immunohistochemical staining was carried out to assess $TNF-{\alpha}$, $NF-{\kappa}B$ p65 and iNOS expression in synovial membrane. Synovial hyperplasia, angiogenesis and fibrosis in synovial membrane was observed with a microscope. Results : 1. Ulmus davidiana Planch herbal acupuncture solution inhibited mRNA expression of MIF and iNOS in dependence on a density of it in LPS-stimulated RAW 264.7 cells. 2. Ulmus davidiana Planch herbal acupuncture solution decreased synovial hyperplasia, angiogenesis and fibrosis in LPS-stimulated mouse knee joints. 3. Ulmus davidiana Planch herbal acupuncture solution curtailed production of MIF, $TNF-{\alpha}$, $NF-{\kappa}B$ p65, iNOS in LPS-stimulated mouse knee joints. Conclusion : On the basis of these results, It was shown that Ulmus davidiana Planch herbal acupuncture solution is significantly able to inhibit the production of MIF as a top in cytokines related to inflammatory or irrlll1une responses. Our results may provide that Ulmus davidiana Planch herbal acupuncture solution has beneficial effect in not only RA but other inflammatory or immune deases.

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유근피 약침이 제2형 Collagen 관절염에서 MIF 활성 억제 및 T세포 분화 조절에 미치는 영향 (The Effect to Inhibiting MIF Activation and Controlling of T Cell Specialization of Ulmus Davidiana Planchon Herbal Acupuncture on TypeII Collagen-induced Arthritis in Mice)

  • 이창환;조재용;이승덕;김경호;박인식;김갑성
    • Journal of Acupuncture Research
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    • 제25권4호
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    • pp.81-94
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    • 2008
  • Rheumatoid arthritis(RA) is a general, chronic, inflammatory and auto-immune disease and it can lead to joint edema, pain, stiffness which are caused by an inflammation in synovium covering our joints. Ulmus davidiana Planchon is a traditional herb used for the treatment on various inflammations, gastrointestinal trouble, ENT(ear, nose, and throat) disease, edema, cancer etc. and it works effectively on arthritis as well. In these study to search for the treatment efficacy of Ulmus davidiana Planchon in RA, I measure manifestation of cytokine gene in synoviocyte treated with Ulmus davidiana Planchon herbal acupuncture and in EL-4 cell, manifestation of cytokine gene cell related to T-cell. And after Ulmus davidiana Planchon herbal acupuncture treatment in Collagen induced arthritis(CIA) which has been known by a general model of RA, DBA mice, I observed foot thickness, general shape of synovium, early cytokine induce CIA and, generation and mutation of cytokine related to the control of T-cell specialization. It comes to conclusion as belows. 1. In synovium treated with Ulmus davidiana Planchon herbal acupuncture, there was the decrease in MIF mRNA does-dependently. Incase of CIA mice treated with Ulmus davidiana Planchon herbal acupuncture, there were the decrease in the damage in synovium and generation of the MIF which is related to induction of the early RA cytokine and IL-6 proinflammatory cytokine. 2. In case of EL-4 treated with Ulmus davidiana Planchon herbal acupuncture, there were decrease in the manifestation of the IL-2 mRNA, but the increase in the manifestation of the IL-4 does-dependently. 3. In the synovium of CIA mice treated with Ulmus davidiana Planchon herbal acupuncture, there were the decrease in generation of IL-2, IL-12 and CD-28, but the increase in generation of IL-4. These result suggest that Ulmus davidiana Planchon can block the process of the early RA by Inhibiting MIF activation, and mitigate Rheumatoid Arthritis by controlling Tcell specialization.

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In vitro에서 Levamisole이 양식뱀장어의 면역조절작용에 미치는 영향 (Effect of Levamisole on Immunomodulation of Eels (Anguilla japonica) In Vitro)

  • 최민순;박관하;정경민;심현빈;윤성호
    • 한국어병학회지
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    • 제12권1호
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    • pp.16-23
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    • 1999
  • Levamisloe(LMS)이 뱀장어의 면역반응에 미치는 영향을 측정하기 위해서 뱀장어의 혈액 및 신장으로부터 백혈구를 분리하여, 림프구의 증식능, MIF 생산능, 자연살해세포활성능, 탐식세포의 탐식능, superoxide anion, hydrogen peroxide 및 lysozyme 활성능 등을 측정하였다. LMS는 T-cell 마이토젠인 Con A 및 PHA 처리시에는 LMS 농도에 비례감소를 보인 반면에 B-cell 마이토젠인 LPS에는 LMS 처리와는 무관하게 큰 차이를 보이지 않았다. 한편 MIF 및 MAF의 생성에는 LMS 처리 농도에 비례 증가되었다. NK 세포의 활성은 LMS 첨가농도에 비례 증가하였는데, 이는 표적세포에 대한 결합율을 증가시킨 결과 NK 세포의 활성이 증가된 것으로 보인다. LMS는 백혈구의 탐식능, superoxide anion의 생성능, hydrogen peroxide 생성능 및 Iysozyme의 활성을 증가시켰다. 이러한 결과로부터 LMS가 어체의 면역작용에 관여하는 작용기전은 면역 작동세포수의 증가를 촉진시키기보다는 분화를 촉진시켜서 cytokine의 방출증가 및 세포의 기능활성을 증강시킴을 알수 있다.

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녹용약침(鹿茸藥鍼)이 CIA 모델 생쥐의 염증인자 생성억제에 미치는 영향 (The Ability of Cervus Elaphus Sibiricus Herbal Acupuncture to Inhibit the Generation of Inflammatory Enzymes on Collagen-induced Arthritis Mice)

  • 황종순;황지혜;이현진;이동건;강민주;백성욱;조현석;김경호;김갑성
    • Journal of Acupuncture Research
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    • 제24권6호
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    • pp.1-14
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    • 2007
  • Backgrounds : Rheumatoid Arthritis(RA) is known as the chronic inflammatory diseasethat induces persistent inflammation in the joint cavity. The destruction of cartilage occurs as the result of bones destoyed by pannus, several influential cytokines induced by the synovial capsulitis, varieties of proteinases, $O_2$ radicals, and the secondary degenerative changes of articular cartilage. The type 2 collagen-induced arthritis model is used in recent experimental research on rheumatoid arthritis. Cervus elaphus sibiricus (Nockyong) has the effect of relieving pain by nourishing the muscles, joints, and bones. It is also known to be efficacious in promoting and enhancing the immune system. The objective of this study was to investigate the effect of Cervus elaphus sibiricus herbal acupuncture to inhibit the generation of proinflammatory enzyme on type 2 collagen-induced arthritis. I investigated the inhibition of mRNA transcription of MIF(macrophage migration inhibitory factor), $TNF-{\alpha}$(Tumor necrosis $factor-{\alpha}$) and MMP-9 (matrix metalloproteinase-9) of Cervus elaphus sibiricus herbal acupuncture using an in vitro test. Also investigated was the inhibition of differentiation of Th 1 cells and activation of cytokines(MIF, $TNF-{\alpha}$, IL-6, MMP-9), which are known to cause initial RA ,and are also related to the morphology of the synovial membranes of the joint capsule, by an in vivo test, using CIA(collagen induced arthritis) model mice. Materials & methods : The laboratory animals used in this experiment were 4 week-old DBA female mice, weighing approximately 20 grams, and adjusted to the laboratory environment. The experiment was divided into the normal group(NOR)-no treated group, control group(CON)-CIA induced group, and sample group(SAM)-Cervus elaphus sibiricus herbal acupuncture treated group. RA was induced in the mice via injection of $50{\mu}{\ell}$ C II mixed CFA. The Cervus elaphus sibiricus herbal acupuncture solution was applied on $GB_{35}$(陽陵泉) for 26 days from the 3rd day of RA inducement. The concentration of the solution was determined via a MTT assay. To research the effect on the expression of MIF, $TNF-{\alpha}$ and MMP-9 mRNA, RT-PCR was performed on synovial membrane cells from the knee joint of CIA mice. C II induced RA knee joint's histo-chemical synovial membrane was observed using a specimen model via the Hematoxilin and Eosin dying technique. Results : The expression of mRNA of RA-related cytokines such as MIF, $TNF-{\alpha}$, and MMP-9 dosedependently decreased in the cell from the synovial membranes of the joint, which is treated with Cervus elaphus sibiricus herbal acupuncture solution. In mice treated with Cervus elaphus sibiricusherbal acupuncture, the damage of synovial membranes of the joint was lessened, and differentiation of Th 1 cells was suppressed. The activation of RA-related cytokines such as MIF was suppressed, and the generation of $TNF-{\alpha}$ and MMP-9 showed a statistically significant decreas. Conclusions : It is speculated that Cervus elaphus sibiricus herbal acupuncture has the therapeutic effect of palliating the damage of the tissue impaired by RA by inhibition of the initial RA progression and by regulating excessive differentiation of Th 1 cell as it suppresses the generation of RA-related cytokines during the highest stage of RA by acting on pro-inflammatory enzymes.

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자연동(自然銅)이 초기 골절 생쥐 정강이뼈의 Re-modeling에 미치는 영향 (Effects of Administration of Pyritum on Fracture Healing in Mice)

  • 신경민;정찬영;황민섭;이승덕;김경호;김갑성
    • Journal of Acupuncture Research
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    • 제26권5호
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    • pp.65-75
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    • 2009
  • Objectives : Pyrite is one of the important prescriptions that has been used in oriental medicine for healing of fracture. It is reasonable, therefore, to postulate that native copper affects the process of bone metabolism and bone formation. The purpose of this study is to discover the effect of Pyrite on the healing of tibia fracture. Methods : 1. In vitro test : MG-63 cell in human body and the Pyritum in the ratio of 0.5mg/ml, 1.0mg/ml, 1.5mg/ml, 2.0mg/ml were incubated for 24 hours. After 24 hours, RNA was extracted via trizol reagent (Sigma, USA). In order to understand the activation of osteoblast, the level of OPN mRNA, osteopontin, was measured. 2. In vivo tesgroups normal group, control group and experimental group. Left tibia bones of mice in CON and JT groups were fractured by bone cutters. Pyrite was orally administered to the experimental group. After 14 days, each group's tibia specimen was constructed to observe changes in activation of proinflmmatory cytokines in relation to MIF and IL-6. Also, proliferation of osteoblast and osteopontin were measured via changes in levels of OPN and OPN mRNA. Results : In jn-Titro test, the level of OPN mRNA, osteopontin production was remarkably increased in Pyritum-treated MG-63 cells. In in-vitro test, fractured area in external tibia morphology was increased more in the JT group than that of the CON group. Osteogenesis, endochodrial ossification, and osteoid in fractured area were also increased more in the JT group than that of the CON group. Increase in OPN mRNA, osteopontin level and osteoblast's proliferation were observed. Activation of MIF and IL-6 was confirmed from the fracture region. Conclusions : From the result, development of a new stimulator in healing fracture via pyrite is expected.

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