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Oncoimmunology. 2017 Jan 03;6(2):e1265719. doi: 10.1080/2162402X.2016.1265719. eCollection 2017.

High baseline levels of interleukin-8 in leukocytes and urine predict tumor recurrence in non-muscle invasive bladder cancer patients receiving bacillus Calmette-Guerin therapy: A long-term survival analysis.

Oncoimmunology

Kai Qu, Jian Gu, Yuanqing Ye, Stephen B Williams, Colin P Dinney, Xifeng Wu, Ashish Kamat

Affiliations

  1. Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China.
  2. Department of Epidemiology, The University of Texas MD Anderson Cancer Center , Houston, TX, USA.
  3. Department of Urology, The University of Texas MD Anderson Cancer Center , Houston, TX, USA.

PMID: 28344874 PMCID: PMC5353920 DOI: 10.1080/2162402X.2016.1265719

Abstract

Bacillus Calmette-Guerin (BCG) therapy for non-muscle invasive bladder cancer (NMIBC) can significantly reduce the risk of recurrence and progression. However, BCG therapy may fail in up to a half of treated patients and may also cause toxicities. Biomarkers to predict the effectiveness of BCG therapy are desired to pre-select patients for BCG therapy to maximize efficacy while avoid unnecessary toxicity. Twelve cytokines were measured in 100 blood and 112 urine samples using cytokine antibody array and correlated with recurrence-free survival in overall and BCG-treated NMIBC patients. Of the 12 cytokines, interleukin (IL) -2, IL-8, IL-10, tumor necrosis factor (TNF)-α, granulocyte-macrophage colony-stimulating factor (GM-CSF) and interferon (IFN)-γ were measurable in more than 30% of peripheral blood leukocyte (PBL) samples. Only IL-8 in PBL was found to be significantly associated with tumor recurrence, especially in those who receiving BCG therapy (hazard ratio [HR] = 4.24; 95% confidence interval [95%CI] = 1.65-10.88;

Keywords: Antibody array; BCG therapy; IL-8; bladder cancer; tumor recurrence

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