Current research into prostate cancer increasingly demands greater inp
ut from pathologists. There is a requirement for improved morphologica
l assessment, classification and grading of neoplasia. The provision o
f optimally preserved material and establishment of tissue 'banks' is
vital to facilitate molecular biological analysis. Microdissection of
archival material can provide a source of relatively pure DNA and mRNA
which can be further amplified by PCR/RT-PCR. This enables allelic im
balance, point mutations and other genetic abnormalities to be demonst
rated. In-situ hybridization for mRNA is feasible on fixed tissues and
allows precise localization of gene expression on complex tissues or
for labile gene products. Experimental models including transgenic mic
e and in-vitro co-culture systems require sophisticated morphological
analysis. Experts in morphological analysis are essential members of b
asic scientific and translational research teams.