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Impaired immune function has been implicated in the declining health and higher incidence of cancer in the elderly. However, age-related changes to immunity are not completely understood. Neutrophils and macrophages represent the first line of defence yet their ability to phagocytose pathogens decrease with aging. Cytotoxic T lymphocytes are critical in eliminating tumors, but T cell function is also...
Most cancers emerge in elderly and immune-comprised hosts implying an important role for cancer immune surveillance. Here, we focus on the role of tissue-associated innate immune cells including antigen presenting cells (i.e. dendritic cells and macrophages), myeloid derived suppressor cells and neutrophils in healthy and cancer-bearing elderly hosts. Most cancers, including the cancers that we are...
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