title: Circadian clocks and tumor biology: what is to learn from human skin biopsies?
abstract: Some of the components of the circadian molecular clock have been shown to link directly to tumor suppression. Most studies on human tumorous biopsies with consistently down-regulated clock gene expression suggested a protective role for these genes against cancer formation. To highlight some limitations of this hypothesis we review these data in light of recent evidences from animal research, epidemiologic studies, and clinical data on skin tumors. We emphasize the role of circadian rhythmic orchestration in cellular metabolism with a potential in cancer development.
authors.affiliation: Department of Dermatology, Medical School, University of Pécs, H-7624 Pécs, Kodály Z.u. 20, Hungary. zsuzsanna.lengyel@aok.pte.hu
authors.forename: Zsuzsanna
authors.initials: Z
authors.lastname: Lengyel
authors.forename: Zita
authors.initials: Z
authors.lastname: Battyáni
authors.forename: György
authors.initials: G
authors.lastname: Szekeres
authors.forename: Valér
authors.initials: V
authors.lastname: Csernus
authors.forename: András D
authors.initials: AD
authors.lastname: Nagy
mesh_terms: D057906:Circadian Clocks / Q000502:physiology*; D006801:Humans; D008545:Melanoma / Q000378:metabolism; D012878:Skin Neoplasms / Q000378:metabolism*