Hossain DMS, Pal SK, Moreira D, et al. TLR9-Targeted STAT3 Silencing Abrogates Immunosuppressive Activity of Myeloid-Derived Suppressor Cells from Prostate Cancer Patients. Author manuscript published online first on May 12, 2015; DOI: 10.1158/1078-0432.CCR-14-3145