Over-expression of Plk4 induces centrosome amplification, loss of primary cilia and associated tissue hyperplasia in the mouse.
Paula A Coelho, Leah Bury, Marta N Shahbazi, Kifayathullah Liakath-Ali, Peri H Tate, Sam Wormald, Christopher J Hindley, Meritxell Huch, Joy Archer, William C Skarnes, Magdalena Zernicka-Goetz, David M Glover
Open Biol | Published : 2015
To address the long-known relationship between supernumerary centrosomes and cancer, we have generated a transgenic mouse that permits inducible expression of the master regulator of centriole duplication, Polo-like-kinase-4 (Plk4). Over-expression of Plk4 from this transgene advances the onset of tumour formation that occurs in the absence of the tumour suppressor p53. Plk4 over-expression also leads to hyperproliferation of cells in the pancreas and skin that is enhanced in a p53 null background. Pancreatic islets become enlarged following Plk4 over-expression as a result of equal expansion of α- and β-cells, which exhibit centrosome amplification. Mice overexpressing Plk4 develop grey hai..View full abstract
Awarded by Wellcome Trust
Awarded by Cancer Research UK
Awarded by Medical Research Council