Highlights ■ Colorectal carcinoma originates from within cancer stem cells of the large intestine. ■ Tissue levels of ALDH1-2 and LGR5 proteins were  associated with greater tumor aggressiveness. ■ Discovery of signaling pathways can improve cancer treatments that control cancer stem cells. ABSTRACT Objective: To investigate the association of CD44, CD133, ALDH1-2, and LGR5 expression with clinicopathological tumor variables. Methods: Twenty-eight adult patients with colorectal carcinoma who underwent curative surgery were included in the study. Paraffin-embedded samples were subjected to […]

RESUMO Objetivo Avaliar a imunoexpressão da proteína survivina nos carcinomas ductais in situ de mama de baixo e de alto graus. Métodos Fragmentos de tecido mamários obtidos por biópsia incisional e procedimentos cirúrgicos de 37 mulheres acometidas por carcinoma ductal in situ de mama foram subdivididos em dois grupos: Grupo A, formado por mulheres com carcinoma ductal in situ de baixo grau; e Grupo B, por mulheres com carcinoma ductal in situ de alto grau. A pesquisa de expressão da […]