Date:1/26/2012

. This anti-tumor immune memory is thought to play a major role in preventing tumor relapse. For larger tumors, Ad5 therapy alone controls tumor growth only transiently. However, Ad5 therapy followed by treatment with agonistic anti-4-1BB (cluster differentiation 137, CD137) antibody, a potent enhancer of the specific CD8+ T cell response, resulted in complete rejection of all transplanted tumors, demonstrating that promotion of T cell responses against tumors could enhance the therapeutic effects of oncolytic adenovirus.

In summary, this study provides insight into the antitumor mechanisms of oncolytic adenovirus, in addition to their direct oncolytic effect. Meanwhile, this study proposes a new and more effective therapeutic regime for cancer treatment using a combination therapy of oncolytic adenovirus and immunotherapy.

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Contact: Wang Shengdian sdwang@moon.ibp.ac.cn 0086-106-488-8493 Science in China Press Source:Eurekalert

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