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  • Title: Prognostic value of a T helper 1 urinary cytokine response after intravesical bacillus Calmette-Guerin treatment for superficial bladder cancer.
    Author: Saint F, Patard JJ, Maille P, Soyeux P, Hoznek A, Salomon L, Abbou CC, Chopin DK.
    Journal: J Urol; 2002 Jan; 167(1):364-7. PubMed ID: 11743357.
    Abstract:
    PURPOSE: Interleukin (IL)-2 and interferon-gamma are released during T helper 1 lymphocyte responses, while IL-10 is released during T helper 2 responses. We evaluated the prognostic value of urinary IL-2, interferon-gamma and IL-10 levels in patients with superficial bladder cancer treated with bacillus Calmette-Guerin (BCG) instillation. METHODS: Urinary IL-2, interferon-gamma and IL-10 were measured by enzyme-linked immunosorbent assay in 37 patients receiving BCG for stages Ta/T1 superficial bladder cancer, and carcinoma in situ. Measurements were made after instillations 5 and 6 during a course of 6 weekly instillations of 150 mg. BCG, Pasteur strain. Correlations of cytokine levels with the clinical outcome were evaluated using the log rank test. RESULTS: Median followup was 29 months. Patients with urinary IL-2 less than 27 pg./micromol. creatinine were significantly more likely to have recurrences than those with higher values (log rank test p = 0.0009). Urinary IL-10 and interferon-gamma levels had no apparent impact on the risk of recurrence or progression. CONCLUSION: Urinary IL-2 levels may serve to identify patients at risk for bladder cancer recurrence after a single course of BCG and, thus, to tailor individual treatment.
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