Molecular chaperones are intracellular protein-folding proteins which
form part of an ancient cellular response to stress called the heat sh
ock response. They have been the focus for attention during the last d
ecade because of the discovery of their vital role in cell functioning
. In very recent years additional roles for these 'topologically-activ
e' proteins in the process of tissue pathology and its treatment have
been indicated and are reviewed.