SFTPD and prostate neoplasm: In order to evaluate the expression of collectins in prostate tumour pathogenesis, we determined the mRNA levels of Surfactant protein-D (SP-D), Surfactant protein-A (SP-A) and Mannan-binding lectin-A (MBL-A) in the prostate of TRAMP mice during early and late stage of tumour, compared to the age-matched non-transgenic littermates (2M control and 6M control).