Predictive value of mucosal TNF-alpha transcripts in steroid-refractory Crohn's disease patients receiving intensive immunosuppressive therapy
BACKGROUND: Concentrations of proinflammatory cytokines are increased in the intestinal mucosa of patients with active Crohn's disease (CD). In a prospective study we investigated whether cytokines can predict long-term remission (>6 months) in patients with steroid-refractory CD receiving t...
Gespeichert in:
| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2007
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| In: |
Inflammatory bowel diseases
Year: 2007, Jahrgang: 13, Heft: 1, Pages: 65-70 |
| ISSN: | 1536-4844 |
| DOI: | 10.1002/ibd.20012 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1002/ibd.20012
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| Verfasserangaben: | Carsten Schmidt, Thomas Giese, Eva Hermann, Stefan Zeuzem, Stefan C. Meuer, and Andreas Stallmach |
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| 245 | 1 | 0 | |a Predictive value of mucosal TNF-alpha transcripts in steroid-refractory Crohn's disease patients receiving intensive immunosuppressive therapy |c Carsten Schmidt, Thomas Giese, Eva Hermann, Stefan Zeuzem, Stefan C. Meuer, and Andreas Stallmach |
| 264 | 1 | |c 2007 | |
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| 520 | |a BACKGROUND: Concentrations of proinflammatory cytokines are increased in the intestinal mucosa of patients with active Crohn's disease (CD). In a prospective study we investigated whether cytokines can predict long-term remission (>6 months) in patients with steroid-refractory CD receiving treatment with infliximab or cyclophosphamide, followed by azathioprine or methotrexate. METHODS: Cytokine transcripts were quantified using real-time polymerase chain reaction (PCR) in mucosal biopsies from 19 patients with active, steroid-refractory CD before and 8 weeks after initiation of therapy. Patients were treated with cyclophosphamide (monthly treatment of 750 mg cyclophosphamide intravenously) or infliximab (5 mg/kg body weight) and were followed until relapse of the disease. Statistical analysis was performed to identify predictive factors to discriminate between patients with or without long-term remission. RESULTS: Seventeen out of 19 patients achieved remission of the disease, two patients were nonresponders, while six out of 17 patients exhibited an early recurrence. Pretreatment TNF-alpha, IL-18, MRP-14, and IL-8 transcripts were significantly correlated with long-term remission. While several cytokines, most importantly MMP-1, determined after 8 weeks were able to predict patients achieving long-term remission, only a decrease of TNF-alpha levels after 8 weeks was predictive. Overall, statistical analysis identified lower pretreatment TNF-alpha levels as the strongest predictor of long-term remission among baseline variables. CONCLUSIONS: Quantification of mucosal TNF-alpha transcripts prior to therapy allows identification of patients achieving long-term remission upon immunosuppression with infliximab or cyclophosphamide. Real-time PCR might have considerable potential in the analysis of disease activity and subsequent clinical management of patients with immunosuppressive therapies. | ||
| 650 | 4 | |a Adolescent | |
| 650 | 4 | |a Adult | |
| 650 | 4 | |a Antibodies, Monoclonal | |
| 650 | 4 | |a Chemokines | |
| 650 | 4 | |a Crohn Disease | |
| 650 | 4 | |a Cyclophosphamide | |
| 650 | 4 | |a Cytokines | |
| 650 | 4 | |a Drug Resistance | |
| 650 | 4 | |a Female | |
| 650 | 4 | |a Gastrointestinal Agents | |
| 650 | 4 | |a Glucocorticoids | |
| 650 | 4 | |a Humans | |
| 650 | 4 | |a Immunosuppressive Agents | |
| 650 | 4 | |a Infliximab | |
| 650 | 4 | |a Intestinal Mucosa | |
| 650 | 4 | |a Male | |
| 650 | 4 | |a Middle Aged | |
| 650 | 4 | |a Prednisolone | |
| 650 | 4 | |a Remission Induction | |
| 650 | 4 | |a Tumor Necrosis Factor-alpha | |
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| 700 | 1 | |a Meuer, Stefan |d 1951- |e VerfasserIn |0 (DE-588)1020440198 |0 (DE-627)691221286 |0 (DE-576)360422454 |4 aut | |
| 700 | 1 | |a Stallmach, Andreas |e VerfasserIn |4 aut | |
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