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Definition
The centrosome is a nonmembranous organelle (1–2 μm in diameter) normally localized at the periphery of nucleus, and its primary function is to nucleate and anchor microtubules.
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Structure and Function
The centrosome in mammalian cells consists of a pair of centrioles and the surrounding protein aggregates consisting of a number of different proteins (known as pericentriolar material; PCM). The centrioles in the pair structurally differ from each other; one with a set of appendages at the distal ends (mother centriole) and another without appendages (daughter centriole). These appendages are believed to be important for nucleating and anchoring microtubules. The daughter centriole acquires the appendages in late G2-phase of the cell cycle. As the primary function of the centrosome is to nucleate and anchor microtubules, centrosomes organize the cytoplasmic microtubule network during...
References
Bennett RA, Izumi H, Fukasawa K (2004) Induction of centrosome amplification and chromosome instability in p53-null cells by transient exposure to sub-toxic levels of S-phase targeting anti-cancer drugs. Oncogene 23:6823–6829
Deng CX (2002) Roles of BRCA1 in centrosome duplication. Oncogene 21:6222–6227
Fukasawa K (2005) Centrosome amplification, chromosome instability and cancer development. Cancer Lett 230:6–19
Hinchcliffe EH, Sluder G (2002) Two for two: Cdk2 and its role in centrosome doubling. Oncogene 21:6154–6160
Tarapore P, Fukasawa K (2002) Loss of p53 and centrosome hyperamplification. Oncogene 21:6234–6240
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© 2014 Springer-Verlag Berlin Heidelberg
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Fukasawa, K. (2014). Centrosome. In: Schwab, M. (eds) Encyclopedia of Cancer. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27841-9_1029-2
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DOI: https://doi.org/10.1007/978-3-642-27841-9_1029-2
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Publisher Name: Springer, Berlin, Heidelberg
Online ISBN: 978-3-642-27841-9
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