Cytoplasmic intermediate filaments revealed as dynamic and multipurpose scaffolds.
Intermediate filaments are cytoskeletal polymers encoded by a large family of differentially expressed genes that provide crucial structural support in the cytoplasm and nucleus of higher eukaryotes. Perturbation of their function accounts for several genetically determined diseases in which fragile cells cannot sustain mechanical and non-mechanical stresses. Recent studies shed light on how this structural support is modulated to meet the changing needs of cells, and reveal a novel role whereby intermediate filaments influence cell growth and death through dynamic interactions with non-structural proteins.
Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. coulombe@jhmi.edu
Pierre A
PA
Coulombe
Pauline
P
Wong
D000818:Animals; D001704:Biopolymers; D016923:Cell Death; D002455:Cell Division; D003593:Cytoplasm / Q000378:metabolism; D003595:Cytoplasmic Streaming / Q000502:physiology*; D006801:Humans; D007381:Intermediate Filament Proteins / Q000378:metabolism; D007382:Intermediate Filaments / Q000737:chemistry / Q000378:metabolism*; D008954:Models, Biological; D020409:Molecular Motor Proteins / Q000502:physiology*; D013314:Stress, Mechanical
D001704:Biopolymers; D007381:Intermediate Filament Proteins; D020409:Molecular Motor Proteins