Heat shock proteins, or stress proteins, are molecular chaperones resp
onsible for protein processing and protection against cellular injury
through the prevention of inappropriate peptide interactions. The dist
ribution of individual stress proteins varies between regions of the k
idney and within subcellular compartments both in normal and pathologi
cal conditions. Novel molecular chaperones have been identified in ren
al medullary cells which are unique, among mammalian cells, in routine
ly facing osmotic stress. Heat shock proteins can participate in renal
injury as antigenic targets, but their primary role is beneficial, an
d these proteins may function by interacting with the cytoskeleton to
protect against and assist recovery from cellular injury. Curr Opin Ne
phrol Hypertens 7:407-412. (C) 1998 Lippincott-Raven Publishers.