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http://dx.doi.org/10.7314/APJCP.2015.16.6.2419

Continuous DC-CIK Infusions Restore CD8+ Cellular Immunity, Physical Activity and Improve Clinical Efficacy in Advanced Cancer Patients Unresponsive to Conventional Treatments  

Zhao, Yan-Jie (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Jiang, Ni (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Song, Qing-Kun (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Wu, Jiang-Ping (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Song, Yu-Guang (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Zhang, Hong-Mei (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Chen, Feng (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Zhou, Lei (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Wang, Xiao-Li (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Zhou, Xin-Na (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Yang, Hua-Bing (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Ren, Jun (Cancer Center, Beijing Shijitan Hospital, Capital Medical University, Beijing Key Lab of Therapeutic Cancer Vaccines)
Lyerly, Herbert Kim (Department of Surgery, Duke University Medical Center)
Publication Information
Asian Pacific Journal of Cancer Prevention / v.16, no.6, 2015 , pp. 2419-2423 More about this Journal
Abstract
Background: There are few choices for treatment of advanced cancer patients who do not respond to or tolerate conventional anti-cancer treatments. Therefore this study aimed to deploy the benefits and clinical efficacy of continuous dendritic cell-cytokine induced killer cell infusions in such patients. Materials and Methods: A total of 381 infusions (from 67 advanced cases recruited) were included in this study. All patients underwent peripheral blood mononuclear cell apheresis for the following cellular therapy and dendritic cells-cytokine induced killer cells were expanded in vitro. Peripheral blood T lymphocyte subsets were quantified through flow cytometry to address the cellular immunity status. Clinical efficacy and physical activities were evaluated by RECIST criteria and Eastern Cooperative Oncology Group scores respectively. Logistic regression model was used to estimate the association between cellular infusions and clinical benefits. Results: An average of $5.7{\pm}2.94{\times}10^9$ induced cells were infused each time and patients were exposed to 6 infusions. Cellular immunity was improved in that cytotoxic $CD8^+CD28^+$ T lymphocytes were increased by 74% and suppressive $CD8^+CD28^-$ T lymphocytes were elevated by 16% (p<0.05). Continuous infusion of dendritic cells-cytokine induced killer cells was associated with improvement of both patient status and cellular immunity. A median of six infusions were capable of reducing risk of progression by 70% (95%CI 0.10-0.91). Every elevation of one ECOG score corresponded to a 3.90-fold higher progression risk (p<0.05) and 1% increase of $CD8^+CD28^-$ T cell proportion reflecting a 5% higher risk of progression (p<0.05). Conclusions: In advanced cancer patients, continuous dendritic cell-cytokine induced killer cell infusions are capable of recovering cellular immunity, improving patient status and quality of life in those who are unresponsive to conventional cancer treatment.
Keywords
DC-CIKs; ECOG scores; cell immunity; clinical efficacy;
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