• Journal of Acupuncture Research
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• 제19권6호
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• pp.155-170
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• 2002

면역억제와 면역항진의 작용을 지닌 녹용(鹿茸)약침의 실험쥐에서의 type II collagen(CII)으로 유발된 관절염(CIA)에 대한 효과를 연구하였다. 본 실험에서 녹용(鹿茸)약침군과 생리식염수군을 대조군으로 하여 실험쥐에게 약침시술을 하였다. 녹용(鹿茸)약침이 CII에 작용하는 세포반응에 대한 효과를 검정하였는데, 대조군에서는 CII 유발주사 후 24일에 관절염이 관찰되었고, CIA의 정도가 점차적으로 심해졌다. 생리식염수 처리군과 비교해 24일 동안 하루에 한번 $50{\mu}g/kg$ 이상 용량의 녹용(鹿茸)약침은 CII 처리 T cell의 interleukin 2(IL-2)와 interferon-${\gamma}$($IFN-{\gamma}$) 생산능력을 억제했다. 또한 녹용(鹿茸)약침은 CII처리 임파절과 대식세포의 tumor necrosis facter ${\alpha}$($TNF-{\alpha}$)의 생산을 억제했다. 한편 CIA에 대한 약침효능의 지표는 녹용(鹿茸)약침을 14일간 하루에 한번씩 처리하면서, 소의 CII로 3주 간격으로 2번 유발접종을 실시하여 검정하였다. 첫 CII 유발접종과 동시에 일일 투여량 $100{\mu}g/kg$으로 14일간의 녹용(鹿茸)약침이 항체형성과 CII에 대한 지연형 과민성 뿐만 아니라 관절염의 증가도 막아주었다. 녹용(鹿茸)약침을 관절염 유발성 CII의 2차 접종과 동시에 시술한 결과, 관절염과 CII에 대한 면역반응을 억제하였다. 이에 저자는 CII로 유발된 관절염에 대한 녹용(鹿茸)약침의 억제효과에 대하여 보고하는 바이다.

• BMB Reports
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• 제49권6호
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• pp.331-336
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• 2016

In murine collagen-induced arthritis (CIA), self-reactive T cells can recognize peptide antigens derived from type-II collagen (CII). Activation of T cells is an important mediator of autoimmune diseases. Thus, T cells have become a focal point of study to treat autoimmune diseases. In this study, we evaluated the efficacy of recombinant MHC class II molecules in the regulation of antigen-specific T cells by using a self peptide derived from CII (CII260-274; IAGFKGEQGPKGEPG) linked to mouseI-A^q in a murine CIA model. We found that recombinant I-A^q/CII260-274 molecules could be recognized by CII-specific T cells and inhibit the same T cells in vitro. Furthermore, the development of CIA in mice was successfully prevented by in vivo injection of recombinant I-A^q/CII260-274 molecules. Thus, treatment with recombinant soluble MHC class II molecules in complex with an immunodominant self-peptide might offer a potential therapeutic for chronic inflammation in autoimmune disease such as rheumatoid arthritis.

• 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.

• IMMUNE NETWORK
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• 제3권3호
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• pp.248-254
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• 2003

Oral administration of antigen has long been used in the induction of immune tolerance in various animal models of autoimmune diseases including rheumatoid arthritis (RA). Alleveation of arthritogenic symptoms has been reported from RA patients who received oral administration of type II collagen (CII) without side effects, however its rather inconsistent therapeutic efficacy and variation among patients calls for more detailed investigation on the mechanism of oral tolerance to be settled as regular treatment for RA. In an attempt to understand the immunogenic processes underpinning tolerance induction by orally administered CII, we analyzed changes in the expression of costimulatory molecules and STAT/SOCS signaling messengers in the mouse model of collagen induced arthritis (CIA). We found thatin the spleen of CIA mice, that has been undergone repeated oral feeding of CII prior to the induction of arthritis, showed increased promortion of CTLA4 expressing lymphocytes than in the spleen of PBS fed control. On the other hand, cells expressing CD28 or ICOS were decreased in the spleen of tolerized mice. Tolerance induction by oral CII administration also enhanced the expression of STAT6 in both RNA and protein level, while not affecting the expression of STAT3. The expression of SOCS3, which hasbeen known to transmit STAT-mediated signals from Th2 type cytokines, remained unchanged in the spleen of tolerized mice. Interestingly transcript of SOCS1, which has been associated with Th1 related pathways, was only visible in the spleen of tolerized but not of control mice, suggesting that as in the case of IL-6 signaling, it may exert a feed back inhibition toward the Th1 type stimulation.

• IMMUNE NETWORK
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• 제1권1호
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• pp.61-69
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• 2001

Background: To determine the molecular structure of type II collagen-specific T-cell receptors associated with rheumatoid arthritis (RA). Methods: We generated CII-specific T-cell lines of 8 RA patients by prolonged in vitro culture with bovine CII (bCII) and the immunogenic peptide (256-270) of human CII. The proliferation response towards CII stimulation was measured from the uptake of 3H-thymidine. Changes in the secretion of Th 1 and Th2 cytokines in the culture supernatent were measured by ELISA. The TCR clonotypes of these T-cells were examined by RT-PCR/SSCP analyses of all 22 $V_{\beta}$ chains. Results: T-cells from patients' tissue exhibited strong proliferation index upon CII stimulation, which was maintained up to 6 months in the culture. The secretion of INF-$\gamma$from these T-cells increased along with the duration of culture time, while the amount of IL-4 production did not show significant changes. The SSCP band patterns of patients' T-cells appear as discrete bands unlike the smeary streak produced from normal samples. Some SSCP bands, each representing selected expansion of a TCR containing certain subtype of $V_{\beta}$ peptides, appeared to be identical in more than one patients. Among these, the expansion of SSCP band representing the $V_{\beta}$ 14 CDR3 region persisted after switching the antigen to the immunogenic human peptide (256-270). Conclusion: CII-reactive T-cells expressing distinct CDR3 motifs are selectively expanded in the peripheral blood and synovial fluid of RA patients, and their persistent proliferation upon CII stimulation, as well as the production Th 1-type cytokines, may play pivotal roles in RA pathogenesis.

• IMMUNE NETWORK
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• 제3권1호
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• pp.1-7
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• 2003

Type II collagen (CII), major component of hyaline cartilage, has been considered as an auto-antigen in rheumatoid arthritis (RA). However, the clinical and biological significances with regard to the CII autoimmunity need to be clarified in human RA. The presence of antibodies to CII has been identified in sera, synovial fluid, and cartilage of patients with RA. In our study, the increased titer of IgG anti-CII in sera was well correlated with C-reactive protein, suggesting that this antibody may reflect the inflammatory status of RA. The titer of anti-CII antibodies (anti-CII Abs) tended to be higher in early stages of diseases. In our extending study, among 997 patients with RA, 269 (27.0%) were positive for circulatory IgG antibody to CII, those levels were fluctuated over time. It is hard to assess the significant amount of T cell responses to CII and CII (255~274) in RA. By using a sensitive method of antigen specific mixed lymphocyte culture, we can detect the presence of CII-reactive T cells in peripheral blood mononuclear cells of RA patients. Sixty seven (46.9%) of 143 patients showed positive CII reactive T cell responses to CII or CII (255~274). The frequencies of CII reactive T cells were more prominent in inflamed synovial fluid (SF) than in peripheral blood. These T cells could be clonally expanded after consecutive stimulation of CII with feeding of autologous irradiated antigen presenting cells (APC). Moreover, the production of Th1-related cytokine, such as IFN-${\gamma}$, was strongly up-regulated by CII reactive T cells. These data suggest that T cells responding to CII, which are probably presenting the IFN-${\gamma}$ producing cells, may play an important role in the perpetuation of inflammatory process in RA. To evaluate the effector function of CII reactive T cells, we investigated the effect of CII reactive T cells and fibroblasts-like synoviocytes (FLS) interaction on the production of pro-inflammatory cytokines. When the CII reactive T cells were co-cultured with FLS, the production of IL-15 and TNF-${\alpha}$ from FLS were significantly increased (2 to 3 fold increase) and this increase was clearly presented in accord to the expansion of CII reactive T cells. In addition, the production of IFN-${\gamma}$ and IL-17, T cell derived cytokines, were also increased by the co-incubation of CII reactive T cells with FLS. We also examined the impact of CII reactive T cells on chemokines production. When FLS were co-cultured with CII stimulated T cells, the production of IL-8, MCP-1, and MIP-1${\alpha}$ were significantly enhanced. The increased production of these chemokines was strongly correlated with increase the frequency of CII reactive T cells. Conclusively, immune response to CII was frequently found in RA. Activated T cells in response to CII contributed to increase the production of proinflammatory cytokines and chemokines, which were critical for inflammatory responses in RA. The interaction of CII-reactive T cells with FLS further augmented this phenomenon. Taken together, our recent studies have suggested that autoimmunity to CII could play a crucial role not only in the initiation but amplification/perpetuation of inflammatory process in human RA.

• Journal of Acupuncture Research
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• 제22권2호
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• pp.33-41
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• 2005

Objective : The effect of Ulmus davidiana Planch(UD), which has long been known to have anti-inflammation and protective effects on damaged tissue, inflammation and bone among other functions, on the development of type II collagen (CII)-induced arthritis (CIA) in rats was studied. Methods : Male rats were immunized with an emulsion of $200\;{\mu}g$ of CII and complete Freund's adjuvant (CFA). The rats were then given intraperitoneal stimulation of Ulmus davidiana Planch herbal acupuncture(UDHA)or saline during the experiment. When compared with rats treated with saline as control, UDHA at doses of more than $20{\mu}g/100\;g$ rat once a day for 7 days inhibited the ability of inguinal lymph node cells to produce T cell cytokines interleukin-2, interleukin-6, $IFN-{\gamma}$ when the cells were obtained from rats 14 days after immunization and cultured in vitro with CII. Results : When rats were injected intraperitoneally, UD -treated group and control group rats did not differ significantly when low doses of UD was given to rats. Conclusion : The recommended dose of UD in the management and treatment of rat CIA will be more than $20{\mu}g/100\;g$, which is two-firth of human therapeutic dose. From the results, it was concluded that the effect of UDHA is dependent of dosage.

• 한국약용작물학회지
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• 제28권6호
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• pp.471-480
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• 2020

Background: The roots of Cirsium japonicum var. ussuriense (RCJ) have been used as traditional medicine in Korea for hematuria and hematemesis. These extracts exert anti-oxidative and anti-inflammatory effects by scavenging for free radical and regulating the inflammatory response. However, the effect of RCJ on rheumatoid arthritis (RA) has not been elucidated. Thus, we evaluated the water extract of RCJ (WRCJ) using type II collagen-induced RA models. Methods and Results: RA was induced by immunization with type II collagen. All experimental materials were orally administered daily for three weeks. The positive control group was administered with 0.2 mg/kg methotrexate (n = 7), while the experimental group was administered with WRCJ (100 or 500 mg/kg, n = 7). Serum levels of TNF-alpha, Interleukin 6 (IL-6), and type II collagen IgG (CII) were measured using ELISA. Administration of 500 mg/kg WRCJ decreased the levels of TNF-alpha, IL-6, and CII. Moreover, WRCJ treatment diminished swelling of hind legs and infiltration of inflammatory cells in RA models' synovial membrane. Conclusions: These results indicate that WRCJ could improve RA, reduce inflammatory indicators and synovial inflammation. However, further experiments are required to determine how WRCJ can influence the signal transduction pathway in RA.

• 대한본초학회지
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• 제27권3호
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• pp.1-6
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• 2012

Objectives : The present study was undertaken to evaluate whether Atractylodis Rhizoma Alba ethanol (ARA-E) extract, which is the pericarp of $Atractylodes$ $japonica$ Koidz. has an effect on collagen-induced arthritis (CIA) in mice. Methods : Male DBA/1J mice were induced by intradermal injection of bovine collagen-II in Freund's incomplete adjuvant (IFA). The CIA mice in the onset of arthritis were treated daily with oral administration of ARA-E extract at dose of 50 mg/kg/bw for 28 days. Arthritis index, histopathological changes and the levels of anti-type II collagen (CII) IgG and inflammatory cytokine, TNF-${\alpha}$ in sera of mice were measured to evaluate the antiarthritic effect of ARA-E. Results : ARA-E extract significantly decreased the arthritic scores and inhibited pathological changes of knee joint tissues in CIA mice. ARA-E extract also significantly decreased the serum levels of anti-CII IgG and TNF-${\alpha}$ in CIA mice. These results indicate that ARA-E extract may effectively prevent arthritic damages in CIA mice, at least partially, by inhibiting the production of autoantibodies and inflammatory cytokine. Conclusions : This studies suggest that ARA-E has a therapeutic potential in inflammatory joint diseases such as rheumatoid arthritis.

• IMMUNE NETWORK
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• 제3권2호
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• pp.136-144
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• 2003

Oral administration of antigen has long been considered as a promising alternative for the treatment of chronic autoimmune diseases including rheumatoid arthritis (RA), and oral application of type II collagen (CII) has been proven to improve pathogenic symptoms in RA patients without problematic side effects. To further current understandings about the immune suppression mechanisms mediated by orally administered antigens, we examined the changes in IgG subtypes, T-cell proliferative response, and proportion of interleukin (IL)-10 producing Th subsets in a time course study of collagen induced arthritis (CIA) animal models. We found that joint inflammation in CIA mouse peaked at 5 weeks after first immunization with CII, which was significantly subdued in mice pre-treated by repeated oral administration of CII. Orally tolerized mice also showed increase in their serum level of IgG1, while the level of IgG2a was decreased. T-cell proliferation upon CII stimulation was also suppressed in lymph nodes of mice given oral administration of CII compared to non-tolerized controls. When cultured in vitro in the presence of CII, T-cells isolated from orally tolerized mice presented higher proportion of $CD4^+IL-10^+$ subsets compared to non-tolerized controls. Interestingly, such increase in IL-10 producing cells were obvious first in Peyer's patch, then by 5 weeks after immunization, in mesenteric lymph node and spleen instead. This result indicates that a particular subset of T-cells with immune suppressive functions might have migrated from the original contact site with CII to inflamed joints via peripheral blood after 5 weeks post immunization.