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Published on: July 31, 2016
Intraperitoneal perfusion of cytokine-induced killer cells with local hyperthermia for advanced hepatocellular
Xiao-Pu Wang1, Meng Xu, Hong-Fei Gao
1Department of Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510620, Guangdong Province, China.
Aim:
To study the effect and tolerance of intraperitoneal perfusion of cytokine-induced killer (CIK) cells in combination with local radio frequency (RF) hyperthermia in patients with advanced primary hepatocellular carcinoma (HCC).
Methods:
Patients with advanced primary HCC were included in this study. CIK cells were perfused intraperitoneal twice a week, using 3.2 × 10⁹ to 3.6 × 10⁹ cells each session. Local RF hyperthermia was performed 2 h after intraperitoneal perfusion. Following an interval of one month, the next course of treatment was administered. Patients received treatment until disease progression. Tumor size, immune indices (CD3⁺, CD4⁺, CD3⁺CD8⁺, CD3⁺CD56⁺), alpha-fetoprotein (AFP) level, abdominal circumference and adverse events were recorded. Time to progression and overall survival (OS) were calculated.
Results:
From June 2010 to July 2011, 31 patients diagnosed with advanced primary HCC received intraperitoneal perfusion of CIK cells in combination with local RF hyperthermia in our study. Patients received an average of 4.2 ± 0.6 treatment courses (range, 1-8 courses). Patients were followed up for 8.3 ± 0.7 mo (range, 2-12 mo). Following combination treatment, CD4⁺, CD3⁺CD8⁺ and CD3⁺CD56⁺ cells increased from 35.78% ± 3.51%, 24.61% ± 4.19% and 5.94% ± 0.87% to 45.83% ± 2.48% (P = 0.016), 39.67% ± 3.38% (P = 0.008) and 10.72% ± 0.67% (P = 0.001), respectively. AFP decreased from 167.67 ± 22.44 to 99.89 ± 22.05 ng/mL (P = 0.001) and abdominal circumference decreased from 97.50 ± 3.45 cm to 87.17 ± 4.40 cm (P = 0.002). The disease control rate was 67.7%. The most common adverse events were low fever and slight abdominal erubescence, which resolved without treatment. The median time to progression was 6.1 mo. The 3-, 6- and 9-mo and 1-year survival rates were 93.5%, 77.4%, 41.9% and 17.4%, respectively. The median OS was 8.5 mo.
Conclusion:
Intraperitoneal perfusion of CIK cells in combination with local RF hyperthermia is safe, can efficiently improve immunological status, and may prolong survival in HCC patients.
