G. Raimondi, M. S. Turner, A. W. Thomson and P. A. Morel, “Naturally Occurring Regulatory T Cells: Recent Insights in Health and Disease,” Critical Reviews in Immunology, Vol. 27, No. 1, 2007, pp. 61-95.
 A. S. Yang and E. C. Lattime, “Tumor-Induced Interleukin 10 Suppresses the Ability of Splenic Dendritic Cells to Stimulate CD4 and CD8 T-Cell Responses,” Cancer Research, Vol. 63, No. 9, 2003, pp. 2150-2157.
 A. S. Yang, C. E. Monken and E. C. Lattime, “Intratumoral Vaccination with Vaccinia-Expressed Tumor Antigen and Granulocyte Macrophage Colony-Stimulating Factor Overcomes Immunological Ignorance to Tumor Antigen,” Cancer Research, Vol. 63, No. 20, 2003, pp. 6956-6961.
 R. Audran, K. Peter, J. Dannull, et al., “Encapsulation of Peptides in Biodegradable Microspheres Prolongs Their MHC Class-I Presentation by Dendritic Cells and Macrophages in Vitro,” Vaccine, Vol. 21, No. 11-12, 2003, 1250-1255.
 H. Shen, A. L. Ackerman, V. Cody, et al., “Enhanced and Prolonged Cross-Presentation Following Endosomal Escape of Exogenous Antigens Encapsulated in Biodegradable Nanoparticles,” Immunology, Vol. 117, No. 1, 2006, pp. 78-88.
 S. Hamdy, A. Haddadi, R. W. Hung and A. Lavasanifar, “Targeting Dendritic Cells with Nano-Particulate PLGA Cancer Vaccine Formulations,” Advanced Drug Delivery Reviews, Vol. 63, no. 10-11, 2011, pp. 943-955.
 Y. Waeckerle-Men, E. U. Allmen, B. Gander, et al., “Encapsulation of Proteins and Peptides into Biodegradable Poly(D,L-lactide-co-glycolide) Microspheres Prolongs and Enhances Antigen Presentation by Human Dendritic Cells,” Vaccine, Vol. 24, No. 11, 2006, pp. 1847-1857.
 K. Nikitczuk, E. Lattime, R. Schloss and M. Yarmush, “Analysis of Dendritic Cell Stimulation Utilizing a Multi-Faceted Nanopolymer Deliver System and the Immune Modulator 1-Methyl Tryptophan,” Nano LIFE, Vol. 1, No. 3, 2010, pp. 1-12.
 M. Diwan, P. Elamanchili, H. Lane, et al. “Biodegradable Nanoparticle Mediated Antigen Delivery to Human Cord Blood Derived Dendritic Cells for Induction of Primary T Cell Responses,” Journal of Drug Targeting, Vol. 11, No. 8-10, 2003, pp. 495-507.
 K. D. Newman, P. Elamanchili, G. S. Kwon and J. Samuel, “Uptake of Poly(D,L-lactic-co-glycolic acid) Microspheres by Antigen-Presenting Cells in Vivo,” Journal of Biomedical Materials Research, Vol. 60, No. 3, 2002, pp. 480-486.
 M. Mueller, E. Schlosser, B. Gander and M. Groettrup, “Tumor Eradication by Immunotherapy with Biodegradable PLGA Microspheres—An Alternative to Incomplete Freund ’s adjuvant,” International Journal of Cancer, Vol. 129, No. 2, 2011, pp. 407-416.
 T. Sato, P. McCue, K. Masuoka, et al. “Interleukin 10 Production by Human Melanoma,” Clinical Cancer Research: An Official Journal of the American Association for Cancer Research, Vol. 2, No. 8, 1996; 1383-1390.
 B. K. Halak, H. C. Maguire Jr. and E. C. Lattime, “Tumor-Induced Interleukin-10 Inhibits Type 1 Immune Responses Directed at a Tumor Antigen as Well as a Non-Tumor Antigen Present at the Tumor Site,” Cancer Research, Vol. 59, No. 4, 1999; 911-917.
 D. I. Gabrilovich, H. L. Chen, K. R. Girgis et al., “Production of Vascular Endothelial Growth Factor by Human Tumors Inhibits the Functional Maturation of Dendritic Cells,” Nature Medicine, Vol. 2, No. 10, 1996, pp. 1096-1103.
 V. C. Liu, L. Y. Wong, T. Jang, et al., “Tumor Evasion of the Immune System by Converting CD4+CD25-T Cells into CD4+CD25+T Regulatory Cells: Role of Tumor-Derived TGF-Beta,” Journal of Immunology, Vol. 178, No. 5, 2007, pp. 2883-2892.
 K. A. Athanasiou, G. G. Niederauer and C. M. Agrawal, “Sterilization, Toxicity, Biocompatibility and Clinical Applications of Polylactic Acid/Polyglycolic Acid Copolymers,” Biomaterials, Vol. 17, No. 2, 1996, pp. 93-102.
 J. Tel, A. J. Lambeck, L. J. Cruz, et al., “Human Plasmacytoid Dendritic Cells Phagocytose, Process, and Present Exogenous Particulate Antigen,” Journal of Immunology, Vol. 184, No. 8, 2010, pp. 4276-4283.
 W. Ma, T. Smith, V. Bogin, et al., “Enhanced Presentation of MHC Class Ia, Ib and Class II-Restricted Peptides Encapsulated in Biodegradable Nanoparticles: A Promising Strategy for Tumor Immunotherapy,” Journal of Translational Medicine, Vol. 9, 2011, pp. 34.
 P. Elamanchili, M. Diwan, M. Cao and J. Samuel, “Characterization of Poly(D,L-lactic-co-glycolic acid) Based Nanoparticulate System for Enhanced Delivery of Antigens to Dendritic Cells,” Vaccine, Vol. 22, No. 19, 2004, pp. 2406-2412.
 Z. Zhang, S. Tongchusak, Y. Mizukami, et al., “Induction of Anti-Tumor Cytotoxic T Cell Responses through PLGA-Nanoparticle Mediated Antigen Delivery,” Biomaterials, Vol. 32, No. 14, 2011, pp. 3666-3678.
 D. T. O’Hagan, H. Jeffery and S. S. Davis, “Long-Term Antibody Responses in Mice Following Subcutaneous Immunization with Ovalbumin Entrapped in Biodegradable Microparticles,” Vaccine, Vol. 11, No. 9, 1993, pp. 965-969.
 Y. Men, C. Thomasin, H. P. Merkle, et al., “A Single Administration of Tetanus Toxoid in Biodegradable Microspheres Elicits T cell and Antibody Responses Similar or Superior to Those Obtained with Aluminum Hydroxide,” Vaccine, Vol. 13, No. 7, 1995, pp. 683-689.
 K. J. Maloy, A. M. Donachie, D. T. O’Hagan and A. M. Mowat, “Induction of Mucosal and Systemic Immune Responses by Immunization with Ovalbumin Entrapped in Poly(lactide-co-glycolide) Microparticles,” Immunology, Vol. 81, No. 4, 1994, pp. 661-667.
 A. Moore, P. McGuirk, S. Adams et al., “Immunization with a Soluble Recombinant HIV Protein Entrapped in Biodegradable Microparticles Induces HIV-Specific CD8+ Cytotoxic T Lymphocytes and CD4+ Th1 Cells,” Vaccine, Vol. 13, No. 18, 1995, pp. 1741-1749.
 Z. Qin, J. Schwartzkopff, F. Pradera, et al., “A Critical Requirement of Interferon Gamma-Mediated Angiostasis for Tumor Rejection by CD8+T Cells,” Cancer Research, Vol. 63, No. 14, 2003, pp. 4095-4100.
 W. H. Schmiegel, J. Caesar, H. Kalthoff, et al., “Antiproliferative Effects Exerted by Recombinant Human Tumor Necrosis Factor-Alpha (TNF-Alpha) and Interferon-Gamma (IFN-Gamma) on Human Pancreatic Tumor Cell Lines,” Pancreas, Vol. 3, No. 2, 1988, pp. 180-188.
 J. E. Eyles, Z. C. Carpenter, H. O. Alpar, E. D. Williamson, “Immunological Aspects of Polymer Microsphere Vaccine Delivery Systems,” Journal of Drug Targeting, Vol. 11, No. 8-10, 2003, pp. 509-514.