T-regulatory cells suppress anti-tumour immunity in cancer patients and in murine tumour models. Furthermore, their activity is likely to have an effect on the effectiveness of immunotherapeutic treatments for cancer. Here we describe the current status of developing clinical strategies for modulating Treg activity in cancer patients.
The proportion of people surviving pancreatic cancer is extremely low, with just 10% of patients diagnosed with any stage of the disease living beyond 1 year and a 5-year relative survival rate of <5%. The lack of effective therapy is one the main reason for such a bleak outlook. Herein, we report on a patient with pancreatic adenocarcinoma and metastatic disease treated with a combination regimen of gemcitabine and lenalidomide, without major complications. We also present in vitro data that highlight a hyper-additive effect of the two drugs when used in combination. To date, 33 months after diagnosis, the patient remains well and continues in full-time employment.
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