References
1. Liyanage UK, Moore TT, Joo HG, et al. Prevalence of regulatory T cells is increased in peripheral blood and tumor microenvironment of patients with pancreas or breast adenocarcinoma. J Immunol. 2002; 169:2756–2761.
2. Zhao F, Obermann S, von Wasielewski R, et al. Increase in frequency of myeloid-derived suppressor cells in mice with spontaneous pancreatic carcinoma. Immunology. 2009; 128:141–149.
3. Toole BP, Slomiany MG. Hyaluronan: a constitutive regulator of chemoresistance and malignancy in cancer cells. Semin Cancer Biol. 2008; 18:244–250.
4. Shepard HM, Frost GI, Rybak ME, et al. Targeting hyaluronan (HA) in the tumor stroma: translational evaluation of pegylated hyaluronidase (PEGPH20) in animal models and patients with advanced solid tumors. J Clin Oncol. 2012; 30(4_suppl):249.
5. Thompson CB, Shepard HM, O'Connor PM, et al. Enzymatic depletion of tumor hyaluronan induces antitumor responses in preclinical animal models. Mol Cancer Ther. 2010; 9:3052–3064.