Immunohistochemical expression of superoxide dismutase (MnSOD) anti-oxidant enzyme in invasive breast carcinoma
dc.contributor.author | Tsanou, E. | en |
dc.contributor.author | Ioachim, E. | en |
dc.contributor.author | Briassoulis, E. Ch | en |
dc.contributor.author | Damala, K. | en |
dc.contributor.author | Charchanti, A. | en |
dc.contributor.author | Karavasilis, V. | en |
dc.contributor.author | Pavlidis, Nicholas | en |
dc.contributor.author | Agnantis, Niki J. | en |
dc.creator | Tsanou, E. | en |
dc.creator | Ioachim, E. | en |
dc.creator | Briassoulis, E. Ch | en |
dc.creator | Damala, K. | en |
dc.creator | Charchanti, A. | en |
dc.creator | Karavasilis, V. | en |
dc.creator | Pavlidis, Nicholas | en |
dc.creator | Agnantis, Niki J. | en |
dc.date.accessioned | 2018-06-22T09:53:24Z | |
dc.date.available | 2018-06-22T09:53:24Z | |
dc.date.issued | 2004 | |
dc.identifier.uri | https://gnosis.library.ucy.ac.cy/handle/7/41817 | |
dc.description.abstract | The most important cellular protective mechanisms against oxidative stress are antioxidant enzymes. Their action is based on decomposal of reactive oxygen species (ROS) and their transformation to H2O2. Within the mitochondria manganese superoxide dismutase (MnSOD) affords the major defense against ROS. In this study we investigated tissue sections from 101 breast carcinomas for the immunohistochemical expression of MnSOD protein and these results were assessed in relation to various clinicopathological parameters, in order to clarify the prognostic value of this enzyme. The possible relationship to hormone receptor content, anti-apoptotic protein bcl-2, p53 and cell proliferation was also estimated. High expression levels were observed, as 79/101 (78,2%) cases expressed strong immunoreactivity. In this study MnSOD increased in a direct relationship with tumor grade and is therefore inversely correlated with differentiation (p=0.0004). Furthermore, there was a strong positive correlation between MnSOD expression and p53 protein immunoreactivity (p=0.0029). The prognostic impact of MnSOD expression in determining the risk of recurrence and overall survival with both univariate (long-rang test) and multivariate (Cox regression) methods of analysis was statistically not significant. These results indicate that neoplastic cells in breast carcinomas retain their capability to produce MnSOD and thus protected from the possible cellular damage provoked by reactive oxygen species. In addition, MnSOD content varies according to the degree of differentiation of breast carcinoma. | en |
dc.language.iso | eng | en |
dc.source | Histology and histopathology | en |
dc.subject | Article | en |
dc.subject | Human | en |
dc.subject | Tamoxifen | en |
dc.subject | Humans | en |
dc.subject | Adult | en |
dc.subject | Breast neoplasms | en |
dc.subject | Controlled study | en |
dc.subject | Female | en |
dc.subject | Major clinical study | en |
dc.subject | Cancer survival | en |
dc.subject | Neoplasm staging | en |
dc.subject | Prognosis | en |
dc.subject | Human tissue | en |
dc.subject | Statistical significance | en |
dc.subject | Carcinoma | en |
dc.subject | Correlation analysis | en |
dc.subject | Multivariate logistic regression analysis | en |
dc.subject | Immunohistochemistry | en |
dc.subject | Protein bcl 2 | en |
dc.subject | Protein expression | en |
dc.subject | Cell division | en |
dc.subject | Cell proliferation | en |
dc.subject | Protein p53 | en |
dc.subject | Tumor suppressor protein p53 | en |
dc.subject | Neoplasm invasiveness | en |
dc.subject | Breast cancer | en |
dc.subject | Breast carcinoma | en |
dc.subject | Cancer grading | en |
dc.subject | Reactive oxygen metabolite | en |
dc.subject | Cell damage | en |
dc.subject | Proto-oncogene proteins c-bcl-2 | en |
dc.subject | Hormone receptor | en |
dc.subject | Immunoreactivity | en |
dc.subject | Cell differentiation | en |
dc.subject | Cohort studies | en |
dc.subject | Invasive carcinoma | en |
dc.subject | Lymph nodes | en |
dc.subject | Age distribution | en |
dc.subject | Recurrence risk | en |
dc.subject | Antioxidants | en |
dc.subject | Carcinoma cell | en |
dc.subject | Mnsod | en |
dc.subject | Oncological parameters | en |
dc.subject | Oxidative stress | en |
dc.subject | Superoxide dismutase | en |
dc.title | Immunohistochemical expression of superoxide dismutase (MnSOD) anti-oxidant enzyme in invasive breast carcinoma | en |
dc.type | info:eu-repo/semantics/article | |
dc.description.volume | 19 | |
dc.description.issue | 3 | |
dc.description.startingpage | 807 | |
dc.description.endingpage | 813 | |
dc.author.faculty | Ιατρική Σχολή / Medical School | |
dc.author.department | Ιατρική Σχολή / Medical School | |
dc.type.uhtype | Article | en |
dc.contributor.orcid | Pavlidis, Nicholas [0000-0002-2195-9961] | |
dc.contributor.orcid | Karavasilis, V. [0000-0002-5806-9399] | |
dc.gnosis.orcid | 0000-0002-2195-9961 | |
dc.gnosis.orcid | 0000-0002-5806-9399 |
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