title: Cellular Expression of Cyclooxygenase, Aromatase, Adipokines, Inflammation and Cell Proliferation Markers in Breast Cancer Specimen.
abstract: Current evidences suggest that expression of Ki67, cyclooxygenase (COX), aromatase, adipokines, prostaglandins, free radicals, β-catenin and α-SMA might be involved in breast cancer pathogenesis. The main objective of this study was to compare expression/localization of these potential compounds in breast cancer tissues with tissues collected adjacent to the tumor using immunohistochemistry and correlated with clinical pathology. The breast cancer specimens were collected from 30 women aged between 49 and 89 years who underwent breast surgery following cancer diagnosis. Expression levels of molecules by different stainings were graded as a score on a scale based upon staining intensity and proportion of positive cells/area or individually. AdipoR1, adiponectin, Ob-R, leptin, COX-1, COX-2, aromatase, PGF2α, F2-isoprostanes and α-SMA were localised on higher levels in the breast tissues adjacent to the tumor compared to tumor specimens when considering either score or staining area whereas COX-2 and AdipoR2 were found to be higher considering staining intensity and Ki67 on score level in the tumor tissue. There was no significant difference observed on β-catenin either on score nor on staining area and intensity between tissues adjacent to the tumor and tumor tissues. A positive correlation was found between COX-1 and COX-2 in the tumor tissues. In conclusion, these suggest that Ki67, COXs, aromatase, prostaglandin, free radicals, adipokines, β-catenin and α-SMA are involved in breast cancer. These further focus the need of examination of tissues adjacent to tumor, tumor itself and compare them with normal or benign breast tissues for a better understanding of breast cancer pathology and future evaluation of therapeutic benefit.
authors.affiliation: Clermont Université, Université d'Auvergne, UMR 1019, Unité de Nutrition Humaine, CRNH-Auvergne, BP 10448, F-63000, Clermont-Ferrand, France; Oxidative Stress and Inflammation, Department of Public Health and Caring Sciences, Faculty of Medicine, Uppsala University, Uppsala, Sweden.
authors.forename: Samar
authors.initials: S
authors.lastname: Basu
authors.affiliation: Clermont Université, Université d'Auvergne, UMR 1019, Unité de Nutrition Humaine, CRNH-Auvergne, BP 10448, F-63000, Clermont-Ferrand, France.
authors.forename: Kristell
authors.initials: K
authors.lastname: Combe
authors.affiliation: Centre Jean Perrin, Unicancer, F-63000, Clermont-Ferrand, France.
authors.forename: Fabrice
authors.initials: F
authors.lastname: Kwiatkowski
authors.affiliation: Clermont Université, Université d'Auvergne, UMR 1019, Unité de Nutrition Humaine, CRNH-Auvergne, BP 10448, F-63000, Clermont-Ferrand, France.
authors.forename: Florence
authors.initials: F
authors.lastname: Caldefie-Chézet
authors.affiliation: Centre Jean Perrin, Unicancer, F-63000, Clermont-Ferrand, France.
authors.forename: Frédérique
authors.initials: F
authors.lastname: Penault-Llorca
authors.affiliation: Centre Jean Perrin, Unicancer, F-63000, Clermont-Ferrand, France.
authors.forename: Yves-Jean
authors.initials: YJ
authors.lastname: Bignon
authors.affiliation: Clermont Université, Université d'Auvergne, UMR 1019, Unité de Nutrition Humaine, CRNH-Auvergne, BP 10448, F-63000, Clermont-Ferrand, France; Centre Jean Perrin, Unicancer, F-63000, Clermont-Ferrand, France; CHU Clermont-Ferrand, Unité d'exploration nutritionnelle, F-63003, Clermont-Ferrand, France.
authors.forename: Marie-Paule
authors.initials: MP
authors.lastname: Vasson
mesh_terms: D054392:Adipokines / Q000378:metabolism*; D000368:Aged; D000369:Aged, 80 and over; D001141:Aromatase / Q000378:metabolism*; D015415:Biomarkers; D001943:Breast Neoplasms / Q000201:enzymology / Q000378:metabolism* / Q000473:pathology; D049109:Cell Proliferation; D005260:Female; D006801:Humans; D007249:Inflammation / Q000378:metabolism*; D008875:Middle Aged; D011451:Prostaglandin-Endoperoxide Synthases / Q000378:metabolism*
chemical_list: D054392:Adipokines; D015415:Biomarkers; D001141:Aromatase; D011451:Prostaglandin-Endoperoxide Synthases