OBJECTIVE: Superoxide dismutase-2 (SOD2) is considered one of the most important antioxidant enzymes that regulate cellular redox state in normal and tumorigenic cells. Overexpression of this enzyme may be involved in carcinogenesis, particularly in lung, gastric, colorectal and breast cancer. METHODS: In the present study, we have evaluated SOD2 protein levels by immunohistochemistry (IHC) in 331 cervical histological samples including 31 low-grade cervical intraepithelial neoplasia (LSIL), 51 high-grade cervical intraepithelial neoplasia (HSIL), 197 squamous cervical carcinomas (SCC) and 52 cervical adenocarcinomas (ADENO). RESULTS: We observed that SOD2 staining increases with cervical disease severity. Intense SOD2 staining was found in 13% of LSIL, 25.5% of HSIL and 40% of SCC. Moreover, 65.4% of ADENO exhibited intense SOD2 staining. CONCLUSIONS: Differences in the expression of SOD2 could potentially be used as a biomarker for the characterization of different stages of cervical disease.
OBJECTIVE:Superoxide dismutase-2 (SOD2) is considered one of the most important antioxidant enzymes that regulate cellular redox state in normal and tumorigenic cells. Overexpression of this enzyme may be involved in carcinogenesis, particularly in lung, gastric, colorectal and breast cancer. METHODS: In the present study, we have evaluated SOD2 protein levels by immunohistochemistry (IHC) in 331 cervical histological samples including 31 low-grade cervical intraepithelial neoplasia (LSIL), 51 high-grade cervical intraepithelial neoplasia (HSIL), 197 squamous cervical carcinomas (SCC) and 52 cervical adenocarcinomas (ADENO). RESULTS: We observed that SOD2 staining increases with cervical disease severity. Intense SOD2 staining was found in 13% of LSIL, 25.5% of HSIL and 40% of SCC. Moreover, 65.4% of ADENO exhibited intense SOD2 staining. CONCLUSIONS: Differences in the expression of SOD2 could potentially be used as a biomarker for the characterization of different stages of cervical disease.
Authors: Lara Termini; José H Fregnani; Enrique Boccardo; Walter H da Costa; Adhemar Longatto-Filho; Maria A Andreoli; Maria C Costa; Ademar Lopes; Isabela W da Cunha; Fernando A Soares; Luisa L Villa; Gustavo C Guimarães Journal: BMC Clin Pathol Date: 2015-03-03
Authors: Maria Cecília Ramiro Talarico; Rafaella Almeida Lima Nunes; Gabriela Ávila Fernandes Silva; Larissa Bastos Eloy da Costa; Marcella Regina Cardoso; Sérgio Carlos Barros Esteves; Luis Otávio Zanatta Sarian; Luiz Carlos Zeferino; Lara Termini Journal: Antioxidants (Basel) Date: 2021-05-05