PMID: 9423286Jan 10, 1998Paper

Functional analysis of mouse keratin 8 in polyoma middle T-induced mammary gland tumours

Transgenic Research
H BaribaultN Bakhiet

Abstract

Keratin 8 and 18 are commonly used as tumorigenic markers for various types of carcinomas. They are known to be involved in cell migration, cell invasiveness, plasminogen activity and drug and radiation resistance. To ascertain a potential function for simple epithelium keratins in mammary adenocarcinoma in vivo, keratin-8-deficient mice (mK8) were mated with transgenic mice carrying the middle T oncogene driven by the MMTV promoter. The resulting mK8 knockout and control progeny carrying the middle T transgene developed mammary gland tumours with the same incidence. However, the onset of palpable mammary gland tumours occurred earlier in mK8 mutant than in control mice. This effect was prominent in males where the onset in control animals is delayed overall, because of the lower hormonal inducibility of the MMTV promoter. Metastatic foci were observed in the lungs of all females and of a few males, independently of the genotype. Histological analysis revealed no morphological differences of the tumorigenic cells in primary tumours nor in metastatic foci. As expected, keratin 8 was absent in the mK8 tumours. Keratin 7 (mK7), keratin 18 (mK18) and keratin 19 (mK19) protein were observed in both primary and metastatic foci. These...Continue Reading

Citations

Oct 9, 2004·International Journal of Cancer. Journal International Du Cancer·Kasper AlmholtMorten Johnsen
Sep 1, 2005·Clinical & Experimental Metastasis·Alexander D BorowskyJeffrey P Gregg
May 30, 2013·Breast Cancer Research and Treatment·Julia HobsonMercedes Rincon
Dec 9, 2003·The Journal of Biological Chemistry·Miriam GenslerAxel Ullrich
Sep 3, 2017·Cold Spring Harbor Perspectives in Biology·Fang Cheng, John E Eriksson

❮ Previous
Next ❯

Related Concepts

Related Feeds

BK Virus Infection

BK virus infection is a significant complication of modern immunosuppression used in kidney transplantation. Discover the latest research on BK virus infection here.

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.

Cell Migration

Cell migration is involved in a variety of physiological and pathological processes such as embryonic development, cancer metastasis, blood vessel formation and remoulding, tissue regeneration, immune surveillance and inflammation. Here is the latest research.