Tammy Maxwell

Learn More
Several reports have demonstrated that tumours are not intrinsically resistant to the immune response. However, neoplasias commonly fail to initiate and maintain adequate immunity. A number of factors have been implicated in causing the failure, including aberrant antigen processing by tumour cells, anergy or deletion of T cells, and recruitment of(More)
Dendritic cell (DC) defects are an important component of immunosuppression in cancer. Here, we assessed whether cancer could affect circulating DC populations and its correlation with tumor progression. The blood DC compartment was evaluated in 136 patients with breast cancer, prostate cancer, and malignant glioma. Phenotypic, quantitative, and functional(More)
Dendritic cells (DCs) are key antigen-presenting cells that play an essential role in initiating and directing cellular and humoral immunity, including anti-tumor responses. Due to their critical role in cancer, induction of DC apoptosis may be one of the central mechanisms used by tumors to evade immune recognition. Spontaneous apoptosis of blood DCs(More)
The generation of antitumour immunity depends on the nature of dendritic cell (DC)-tumour interactions. These have been studied mostly by using in vitro-derived DC which may not reflect the natural biology of DC in vivo. In breast cancer, only one report has compared blood DC at different stages and no longitudinal evaluation has been performed. Here we(More)
The circumsporozoite (CS) is the most abundant surface protein of the Plasmodium sporozoite, and is also present early in the liver stage of the infection. Following successful protective experiments in mice and monkeys, the synthetic 102-mer malaria vaccine polypeptide representing the C-terminal region of the CS of Plasmodium falciparum was tested in a(More)
Dendritic cells (DC) have been implicated in the defective function of the immune system during cancer progression. We have demonstrated that patients with cancer have fewer myeloid (CD11c+) and plasmacytoid (CD123(hi)) DC and a concurrent accumulation of CD11c(-)CD123- immature cells expressing HLA-DR (DR(+)IC). Notably, DR(+)IC from cancer patients have a(More)
  • 1