TY - JOUR
T1 - The material state of centrosomes
T2 - lattice, liquid, or gel?
AU - Woodruff, Jeffrey B.
N1 - Publisher Copyright:
© 2020 The Author(s)
PY - 2021/2
Y1 - 2021/2
N2 - Centrosomes are micron-scale structures that nucleate microtubule arrays for chromosome segregation and mitotic spindle positioning. For these jobs, centrosomes must be dynamic enough to grow, yet stable enough to resist microtubule-mediated forces. How do centrosomes achieve such seemingly contradictory features? While much is understood about the molecular parts of centrosomes, very little is known about their functional material properties. Two prevalent hypotheses pose that the centrosome is either a liquid droplet or a solid lattice. However, many material states exist between a pure Newtonian liquid and a crystalline solid, and it is not clear where centrosomes lie along this spectrum. Furthermore, broad terms like “liquid” or “solid” do not reveal functional properties like strength, ductility, elasticity, and toughness, which are more relevant to understand how centrosomes resist forces. This review covers recent findings and new rheology techniques that reveal the material characteristics of centrosomes and how they are regulated.
AB - Centrosomes are micron-scale structures that nucleate microtubule arrays for chromosome segregation and mitotic spindle positioning. For these jobs, centrosomes must be dynamic enough to grow, yet stable enough to resist microtubule-mediated forces. How do centrosomes achieve such seemingly contradictory features? While much is understood about the molecular parts of centrosomes, very little is known about their functional material properties. Two prevalent hypotheses pose that the centrosome is either a liquid droplet or a solid lattice. However, many material states exist between a pure Newtonian liquid and a crystalline solid, and it is not clear where centrosomes lie along this spectrum. Furthermore, broad terms like “liquid” or “solid” do not reveal functional properties like strength, ductility, elasticity, and toughness, which are more relevant to understand how centrosomes resist forces. This review covers recent findings and new rheology techniques that reveal the material characteristics of centrosomes and how they are regulated.
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U2 - 10.1016/j.sbi.2020.10.001
DO - 10.1016/j.sbi.2020.10.001
M3 - Review article
C2 - 33248427
AN - SCOPUS:85096830522
SN - 0959-440X
VL - 66
SP - 139
EP - 147
JO - Current Opinion in Structural Biology
JF - Current Opinion in Structural Biology
ER -