4.5 Article

Influence of stathmin 1 (STMN1) expression on neoangiogenesis in colorectal adenocarcinoma

Journal

PATHOLOGY RESEARCH AND PRACTICE
Volume 238, Issue -, Pages -

Publisher

ELSEVIER GMBH
DOI: 10.1016/j.prp.2022.154057

Keywords

Colorectal cancer; Immunohistochemistry; Stathmin1 expression; VEGF expression; Microvascular density (mvd)

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Stathmin1 expression is closely associated with neoangiogenesis in colorectal adenocarcinoma, with high expression being correlated with severe VEGF expression and high microvascular density index (mvdIDX). Based on Stathmin1 expression, patients at increased risk for metastatic disease can be differentiated.
Stathmin1 is a microtubular regulatory protein. The expression disorders of this protein result in significant changes in cell migration, invasion, adhesion and colony formation in many malignant tumors. The aim of our research was to investigate the effects of Stathmin1 expression on neoangiogenesis in colorectal adenocarcinoma. Biopsy material that was obtained by the resection of colorectal carcinoma was used. The experimental group consisted of operative biopsies of colorectal cancer (n = 72), and the control group (n = 72) consisted of biopsies of adjacent non-tumor colon tissue. The biopsy material was taken from an operative preparation submitted to the Department of Pathology. After histopathological treatment, classical Hematoxylin-Eosin and immunohis-tochemical ABC methods with anti-Stathmin1, anti-VEGF and anti CD105 antibodies were applied on 4 mu m thick sections. High expression of Stathmin1 is associated with severe (91.9%) and moderate (8.1%) expression of VEGF in a significantly high number of cases. This relation is defined by a highly significant correlation coef-ficient (r = 0.768; p = 0.000). High expression of Stathmin1 is associated with a high microvascular density index (mvdIDX) in a significant number of cases (73.0%) while low expression of Stathmin1 is in relation with low mvdIDX in a significant 73.7% of cases. This relationship is also defined by a highly significant correlation coefficient (r = 0.566; p = 0.000). ROC analysis showed that the sensitivity for Stathmin1 was 97.4% and the specificity was 91.4%. Based on Stathmin1 expression, it is possible to differentiate patients with increased risk for metastatic disease. The highly significant association of Stathmin1 expression with VEGF expression and microvascular density (MVD) suggests that Stathmin1 may be a serious candidate for therapeutic target.

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