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Cryopreservation of Mouse Embryos by Ethylene Glycol-Based Vitrification
JoVE 3155 11/18/2011

Oct 2006 p27 KO mouse


mouse_of_month_200610

p27 KO mouse
Big mouse with multiple tumor

BRC No. 01878_B6;129P2-Cdkn1btm1Kin
Targeted mutation : p27Kip1, Chr 6
Gene Symbol : Cdkn1b (OMIM600778)
Research Application : Cell Cycle and Tumor Biology
mn0610_0101
(upper) p27 KO mouse
(right) Pathological abnormality in the retina
of p27 KO mouse. Allows indicate the invaded outer
granular layer cells into the rods and cones.
mn0610_0102

 

  p27Kip1 is one of the the inhibitor for a series of cyclin and cyclin-dependent kinase (CDK) complex which plays a central role in the regulation of cell cycle progression. p27Kip1-deficient mice display a variety of abnormalities such as increased body size with their enlarged organs and disorganized layer pattern in retina (Figure right). About half of mutants develop tumors originating from the intermediate lobe of pituitary gland by 12 weeks of age. This strain is useful for cell cycle research and tumor biology.

 

Depositor : Dr. Kei-ichi Nakayama
(Kyushu University)
Reference :  Nakayama, K., Ishida, N., Shirane, M., Inomata, A., Shishido, N., Horii, I., Loh, D. Y., and Nakayama, K.
Mice lacking p27(Kip1) display increased body size, multiple organ hyperplasia, retinal dysplasia, and pituitary tumors.
Cell. 1996 May 31;85(5):707-20.