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1.
J Immunol ; 195(7): 3001-10, 2015 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-26324771

RESUMEN

IL-23 is the key cytokine that induces the expansion of Th17 cells. It is composed of p19 and p40 subunits of IL-12. The p40 subunit binds competitively to the receptor of IL-23 and blocks its activity. Our aim was to assess the preventive and therapeutic effect of the IL-12p40 homodimer (p40)2 subunit in autoimmune arthritis animal models. In the current study, using IL-1R antagonist-knockout mice and a collagen-induced arthritis model, we investigated the suppressive effect of (p40)2 on inflammatory arthritis. We demonstrated that the recombinant adenovirus-expressing mouse (p40)2 model prevented the development of arthritis when given before the onset of arthritis. It also decreased the arthritis index and joint erosions in the mouse model if transferred after arthritis was established. (p40)2 inhibited the production of inflammatory cytokines and Ag-specific T cell proliferation. It also induced CD4(+)CD25(+)Foxp3 regulatory T (Treg) cells in vitro and in vivo, whereas the generation of retinoic acid receptor-related organ receptor γt and Th17 cells was suppressed. The induction of Treg cells and the suppression of Th17 cells were mediated via activated STAT5 and suppressed STAT3. Our data suggest that (p40)2 suppressed inflammatory arthritis successfully. This could be a useful therapeutic approach in autoimmune arthritis to regulate the Th17/Treg balance and IL-23 signaling.


Asunto(s)
Artritis Experimental/prevención & control , Subunidad p40 de la Interleucina-12/farmacología , Subunidad p19 de la Interleucina-23/inmunología , Linfocitos T Reguladores/inmunología , Células Th17/inmunología , Animales , Artritis Experimental/tratamiento farmacológico , Artritis Experimental/inmunología , Proliferación Celular/efectos de los fármacos , Células Cultivadas , Colágeno/inmunología , Citocinas/biosíntesis , Subunidad p40 de la Interleucina-12/inmunología , Interleucina-17/biosíntesis , Activación de Linfocitos/inmunología , Masculino , Ratones , Ratones Endogámicos DBA , Ratones Noqueados , Miembro 1 del Grupo F de la Subfamilia 1 de Receptores Nucleares/biosíntesis , Multimerización de Proteína , Receptores de Interleucina/inmunología , Receptores Tipo I de Interleucina-1/genética , Factor de Transcripción STAT3/metabolismo , Factor de Transcripción STAT5/metabolismo , Transducción de Señal/inmunología
2.
Clin Exp Immunol ; 169(3): 320-9, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22861372

RESUMEN

In our previous study, we showed that treatment with an anti-interleukin (IL)-12/23p40 antibody inhibits acute cardiac allograft rejection via inhibiting production of interferon (IFN)-γ and IL-17a. However, the impact of this antagonistic anti-p40 antibody on chronic cardiac rejection was unclear. Hearts of B6.C-H2bm12/KhEg mice were transplanted into major histocompatibility complex (MHC) class II-mismatched C57Bl/6J mice (wild-type, γδTCR (-/-) and IL-17(-/-) ), which is an established murine model of chronic allograft rejection without immunosuppression. The mice were treated with control immunoglobulin (Ig)G or 200 µg anti-p40 monoclonal antibody on post-operative days, respectively. Abdominal palpation and echocardiography were used to monitor graft survival. The mice administered with anti-p40 antibody showed a significant promotion in graft survival (median survival time >100 days), and histological analyses revealed that cardiac allograft rejection was attenuated. Quantitative real-time polymerase chain reaction (qRT-PCR) and immunofluorescence analyses demonstrated that anti-p40 antibody down-regulated the level of ingraft cytokine and chemokine expression (IL-6, IFN-γ, IL-17a, CCL2 and CCL20). Flow cytometry analyses showed that γδ T cells are an important ingraft source of IFN-γ and IL-17a and inhibit the production of inflammation cytokine by anti-p40 antibody. Compared with the wild-type group, the graft survival time in the γδ T cell receptor(-/-) and IL-17(-/-) mice was prolonged significantly. Therefore we propose that, in the chronic allograft rejection model, treatment with anti-p40 antibody prolongs graft survival possibly by reducing the amount of reactive inflammatory cells, especially γδ T cells.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Rechazo de Injerto/prevención & control , Trasplante de Corazón , Subunidad p40 de la Interleucina-12/antagonistas & inhibidores , Receptores de Antígenos de Linfocitos T gamma-delta/análisis , Subgrupos de Linfocitos T/inmunología , Animales , Anticuerpos Monoclonales/inmunología , Anticuerpos Monoclonales/farmacología , Quimiocinas/biosíntesis , Quimiocinas/genética , Citocinas/biosíntesis , Citocinas/genética , Evaluación Preclínica de Medicamentos , Fibrosis , Supervivencia de Injerto , Interferón gamma/biosíntesis , Subunidad p40 de la Interleucina-12/inmunología , Interleucina-17/biosíntesis , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Miocardio/inmunología , Miocardio/patología , Organismos Libres de Patógenos Específicos , Subgrupos de Linfocitos T/metabolismo , Trasplante Heterotópico , Trasplante Homólogo
4.
Gastroenterol Hepatol ; 34(8): 546-50, 2011 Oct.
Artículo en Español | MEDLINE | ID: mdl-21665330

RESUMEN

Treatment with anti-tumor necrosis factor (TNF)-α for Crohn's disease is relatively safe, although various cutaneous adverse effects have been reported such as the development or exacerbation of anti-TNF- α-induced psoriasis, which can sometimes lead to treatment withdrawal. Therefore, new alternative treatments with new mechanisms of action are required. Ustekinumab, a monoclonal antibody against the p40 subunit of interleukin 12/23, could induce response in patients with Crohn's disease and has demonstrated efficacy in patients with psoriasis. We present the case of a woman with Crohn's disease who developed psoriasis after treatment with two anti-TNF- α drugs (infliximab and adalimumab). The patient was subsequently treated with ustekinumab with resolution or psoriasis lesions and maintenance of remission of Crohn's disease.


Asunto(s)
Anticuerpos Monoclonales Humanizados/efectos adversos , Anticuerpos Monoclonales/efectos adversos , Anticuerpos Monoclonales/uso terapéutico , Enfermedad de Crohn/tratamiento farmacológico , Erupciones por Medicamentos/etiología , Subunidad p40 de la Interleucina-12/antagonistas & inhibidores , Psoriasis/inducido químicamente , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Adalimumab , Corticoesteroides/administración & dosificación , Corticoesteroides/uso terapéutico , Adulto , Anticuerpos Monoclonales/administración & dosificación , Anticuerpos Monoclonales Humanizados/administración & dosificación , Anticuerpos Monoclonales Humanizados/uso terapéutico , Azatioprina/administración & dosificación , Azatioprina/uso terapéutico , Terapia Combinada , Quimioterapia Combinada , Femenino , Humanos , Inmunosupresores/uso terapéutico , Infliximab , Subunidad p40 de la Interleucina-12/inmunología , Mesalamina/administración & dosificación , Mesalamina/uso terapéutico , Fototerapia , Psoriasis/tratamiento farmacológico , Psoriasis/terapia , Factor de Necrosis Tumoral alfa/inmunología , Ustekinumab
5.
Cell Immunol ; 265(1): 50-6, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20673883

RESUMEN

In this study, we report that a polysaccharide isolated from a Chinese medicinal herb, Zhu Ling (the sclerotium of Polyporus umbellatus (Per) Fr), induces phenotypic and functional maturation of murine bone-derived dendritic cells (BMDCs). Treatment of BMDCs with Polyporus polysaccharide (PPS) resulted in enhanced cell-surface expression of CD86, as well as enhanced production of both interleukin (IL)-12 p40 and IL-10 in a dose-dependent manner. In addition, treatment of BMDCs with PPS resulted in increased T cell-stimulatory capacity and decreased phagocytic ability. PPS-induced production of IL-12 p40 was inhibited by monoclonal antibodies to Toll-like receptor 4 (TLR4). Flow cytometric analysis showed that fluorescence-labeled PPS (f-PPS) bound specifically to BMDCs. This binding was blocked by both unlabeled PPS and anti-TLR4, but not by anti-TLR2 and anti-CR3 monoclonal antibodies. Taken together, our data show that PPS promotes the activation and maturation of murine BMDCs via TLR4.


Asunto(s)
Células de la Médula Ósea/inmunología , Diferenciación Celular/inmunología , Células Dendríticas/inmunología , Polyporus/inmunología , Polisacáridos/farmacología , Receptor Toll-Like 4/inmunología , Animales , Diferenciación Celular/efectos de los fármacos , Medicamentos Herbarios Chinos/farmacología , Femenino , Interleucina-10/inmunología , Subunidad p40 de la Interleucina-12/inmunología , Prueba de Cultivo Mixto de Linfocitos , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos C3H , Ratones Endogámicos C57BL , Polyporus/química , Polisacáridos/aislamiento & purificación
6.
Int Immunopharmacol ; 10(9): 1119-26, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20601178

RESUMEN

Licochalcone, a constituent of licorice, has antitumor, antimicrobial, and anti-inflammatory effects. Recently, licochalcone E was isolated from the roots of Glycyrrhiza inflata and its biological functions are not fully examined. In this study, we investigated its ability to modulate production of IL-12p40, a common subunit of IL-12 and IL-23. Licochalcone E dose-dependently inhibited IL-12p40 production from lipopolysaccharide-stimulated RAW264.7 macrophage cells. The repressive effect was mapped to a region in the IL-12 gene promoter containing a binding site for NF-kappaB. Furthermore, licochalcone E decreased binding to the NF-kappaB site in RAW264.7 macrophage cells. Using a chronic allergic contact dermatitis model induced by repeated application of oxazolone, we showed that licochalcone E inhibited the increased IL-12p40 expression and ear thickness induced by oxazolone. Taken together, licochalcone E inhibits IL-12p40 production and has therapeutic potential to reduce skin inflammation.


Asunto(s)
Chalconas/farmacología , Chalconas/uso terapéutico , Dermatitis Alérgica por Contacto/tratamiento farmacológico , Subunidad p40 de la Interleucina-12/antagonistas & inhibidores , Animales , Antiinflamatorios/inmunología , Células Cultivadas , Chalconas/inmunología , Enfermedad Crónica , Dermatitis Alérgica por Contacto/inmunología , Regulación hacia Abajo , Femenino , Subunidad p40 de la Interleucina-12/inmunología , Macrófagos/efectos de los fármacos , Macrófagos/inmunología , Ratones , Ratones Endogámicos C57BL , FN-kappa B/antagonistas & inhibidores , Oxazolona/efectos adversos , Oxazolona/inmunología , Regiones Promotoras Genéticas/efectos de los fármacos , Regiones Promotoras Genéticas/inmunología
7.
BMC Immunol ; 10: 39, 2009 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-19604415

RESUMEN

BACKGROUND: Propolis, an ancient herbal medicine, has been reported the beneficial effect both in asthma patients and murine model of asthma, but the mechanism was not clearly understood. In this study, the effect of caffeic acid phenethyl ester (CAPE), the most extensively studied components in propolis, on the functions of human monocyte-derived dendritic cells (MoDCs) was investigated. RESULTS: CAPE significantly inhibited IL-12 p40, IL-12 p70, IL-10 protein expression in mature healthy human MoDCs stimulated by lipopolysaccharides (LPS) and IL-12 p40, IL-10, IP-10 stimulated by crude mite extract. CAPE significantly inhibited IL-10 and IP-10 but not IL-12 expression in allergic patients' MoDCs stimulated by crude mite extract. In contrast, the upregulation of costimulatory molecules in mature MoDCs was not suppressed by CAPE. Further, the antigen presenting ability of DCs was not inhibited by CAPE. CAPE inhibited IkappaBalpha phosphorylation and NF-kappaB activation but not mitogen-activated protein kinase (MAPK) family phosphorylation in human MoDCs. CONCLUSION: These results indicated that CAPE inhibited cytokine and chemokine production by MoDCs which might be related to the NF-kappaB signaling pathway. This study provided a new insight into the mechanism of CAPE in immune response and the rationale for propolis in the treatment of asthma and other allergic disorders.


Asunto(s)
Ácidos Cafeicos/farmacología , Células Dendríticas/efectos de los fármacos , Hipersensibilidad/inmunología , Alcohol Feniletílico/análogos & derivados , Própolis/farmacología , Linfocitos T/inmunología , Alérgenos/inmunología , Animales , Quimiocina CXCL10/antagonistas & inhibidores , Quimiocina CXCL10/inmunología , Quimiocina CXCL10/metabolismo , Células Dendríticas/inmunología , Humanos , Hipersensibilidad/metabolismo , Quinasa I-kappa B/antagonistas & inhibidores , Quinasa I-kappa B/inmunología , Quinasa I-kappa B/metabolismo , Interleucina-10/antagonistas & inhibidores , Interleucina-10/inmunología , Interleucina-10/metabolismo , Interleucina-12/antagonistas & inhibidores , Interleucina-12/inmunología , Interleucina-12/metabolismo , Subunidad p40 de la Interleucina-12/antagonistas & inhibidores , Subunidad p40 de la Interleucina-12/efectos de los fármacos , Subunidad p40 de la Interleucina-12/inmunología , Subunidad p40 de la Interleucina-12/metabolismo , Lipopolisacáridos/farmacología , Quinasas de Proteína Quinasa Activadas por Mitógenos/inmunología , Quinasas de Proteína Quinasa Activadas por Mitógenos/metabolismo , FN-kappa B/antagonistas & inhibidores , FN-kappa B/inmunología , FN-kappa B/metabolismo , Alcohol Feniletílico/farmacología , Fosforilación/efectos de los fármacos , Fosforilación/inmunología , Pyroglyphidae/inmunología , Transducción de Señal/efectos de los fármacos , Transducción de Señal/inmunología , Linfocitos T/efectos de los fármacos , Linfocitos T/metabolismo
8.
Curr Opin Investig Drugs ; 8(11): 947-54, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17979029

RESUMEN

Centocor Inc is developing CNTO-1275 (ustekinumab), a subcantaneous mAb against the p40 subunit of IL-12 and IL-23, for the potential treatment of inflammatory diseases such as psoriasis, psoriatic arthritis, multiple sclerosis (MS) and Crohn's disease (CD). In July 2004, a phase II trial for MS had commenced, and by July 2006 this study was no longer recruiting patients. By May 2005, CNTO-1275 was in phase II studies for CD, and by January 2006 the antibody was in phase III studies for psoriasis. In December 2005, a phase II trial in patients with psoriatic arthritis had commenced and had finished recruiting by January 2007.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Enfermedades Autoinmunes/tratamiento farmacológico , Subunidad p40 de la Interleucina-12/inmunología , Animales , Anticuerpos Monoclonales/inmunología , Anticuerpos Monoclonales/farmacología , Anticuerpos Monoclonales Humanizados , Enfermedades Autoinmunes/inmunología , Ensayos Clínicos Fase II como Asunto , Ensayos Clínicos Fase III como Asunto , Evaluación Preclínica de Medicamentos , Humanos , Ustekinumab
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