Mousa, Y., H, A., Ibrahim, D., Ahmed, M. (2022). Immunohistochemical Expression of Epithelial and Stromal Annexin A2 (ANXA2) in Colorectal Adenocarcinoma. test, 89(2), 7894-7901. doi: 10.21608/ejhm.2022.277383
Yasmen Mohamed Mousa; Abdelbary E. H; Doaa Abdelaziz Ibrahim; Mona Mostafa Ahmed. "Immunohistochemical Expression of Epithelial and Stromal Annexin A2 (ANXA2) in Colorectal Adenocarcinoma". test, 89, 2, 2022, 7894-7901. doi: 10.21608/ejhm.2022.277383
Mousa, Y., H, A., Ibrahim, D., Ahmed, M. (2022). 'Immunohistochemical Expression of Epithelial and Stromal Annexin A2 (ANXA2) in Colorectal Adenocarcinoma', test, 89(2), pp. 7894-7901. doi: 10.21608/ejhm.2022.277383
Mousa, Y., H, A., Ibrahim, D., Ahmed, M. Immunohistochemical Expression of Epithelial and Stromal Annexin A2 (ANXA2) in Colorectal Adenocarcinoma. test, 2022; 89(2): 7894-7901. doi: 10.21608/ejhm.2022.277383

Immunohistochemical Expression of Epithelial and Stromal Annexin A2 (ANXA2) in Colorectal Adenocarcinoma

The Egyptian Journal of Hospital Medicine
Article 268, Volume 89, Issue 2, October 2022, Pages 7894-7901    PDF (762.42 K)
Document Type: Original Article
DOI: 10.21608/ejhm.2022.277383
Authors
Yasmen Mohamed Mousa; Abdelbary E. H; Doaa Abdelaziz Ibrahim; Mona Mostafa Ahmed
Abstract
Background: Colorectal cancer (CRC), the third leading cause of cancer death worldwide, shows rising incidence in developing countries. A combination of environmental and genetic/epigenetic factors contribute to CRC development. Adenocarcinoma not otherwise specified (NOS) is the most common histopathologic subtype. Annexin A2 (ANXA2) is a calcium-regulated phospholipid-binding protein. Objective: Evaluation of the ANXA2 immunohistochemical (IHC) expression in colorectal adenocarcinoma compared to normal mucosaand adenoma and investigating its association with clinicopathological parameters in CRC and adenoma cases.
 Materials and Methods: This retrospective study included 108 formalin-fixed, paraffin-embedded tissue blocks divided into three groups: adenocarcinoma, normal mucosa, and adenoma. Immunohistochemical staining by ANXA2 antibody was done, followed by semiquantitative evaluation of staining and correlation with clinicopathological data.
 Results: High ANXA2 expression was significantly increased in CRC compared to normal mucosa and adenoma. Correlation of epithelial and stromal ANXA2 expression with clinicopathological parameters showed a significant association with aggressive cancer phenotypes including higher grade (P =0.003 and<0.001), large size (P = 0.006 and<0.001), deeper depth of invasion (P = 0.003 but 0.084 in stroma), advanced stage (P <0.001 for both), lymph node metastasis (P= 0.001 and <0.001), low lymphocytic infiltration (P <0.001 for both) and high tumor budding grade (P = 0.005 and <0.001). Conclusion: The association of Annexin A2 with aggressive tumor characteristics points to its potential involvement in tumor development, invasion, and metastasis.
 
 
Keywords
Annexin A2; Colorectal cancer; Immunohistochemistry
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