CD40LG and neoplasm: Vaccinated (+control) mice showed a different percentual composition of isotypes IgG (IgG1 25%; IgG2a 40%; IgG2b 12%) and IgM (23%) as compared to tumour-bearing mice in non-RT and RT groups (IgG1 19 ±1.2%; IgG2a 34 ±0.8%; IgG2b 17 ±0.5%; IgM 30 ±1.5%) (Fig 4B).