Marijan, S, Mastelić, A, Markotić, A, Režić-Mužinić, N, Vučenović, N, Barker, D, Pilkington, LI, Reynisson, J and Čulić, VČ (2021) Thieno[2,3-b]Pyridine Derivative Targets Epithelial, Mesenchymal and Hybrid CD15s+ Breast Cancer Cells. Medicines, 8 (7). ISSN 2305-6320

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The adhesion of cancer cells to vascular endothelium is a critical process in hematogenous metastasis and might be similar to the recruitment of leukocytes at the site of inflammation. It is mediated by E-selectin and its ligands, of which the most stereospecific is a glycoconjugate sialyl Lewis x (CD15s), which may be expressed as an oligosaccharide branch of the CD44 glycoprotein, as well as a self-contained glycosphingolipid. It is also known that increased sialylation of glycoconjugates is a feature of malignant cells. The aim of the study was to analyse the effect of a novel thieno[2,3-b]pyridine, compound 1, in MDA-MB-231 triple-negative breast cancer cells (TNBCs) upon CD15s and CD44 expression in different cell subpopulations using flow cytometry. CD15s expression was compared between mesenchymal-like cancer stem cells (CSC, CD44+CD24-), epithelial cells without CD44 (CD44-CD24+ and CD44-CD24-), and CD44+CD24+ cells that exhibit mesenchymal and epithelial features. In addition, expression of CD44 in CD15s+CSC and CD15s-CSC was determined. Compound 1 significantly decreased the percentage of CD15s+CSC, CD15s+CD44+CD24+, and CD15s+CD44- subpopulations, as well as the expression of CD15s in CD44+CD24+ and CD44- cells, and therefore shows potential as a treatment for TNBC.

Item Type: Article
Additional Information: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Subjects: R Medicine > R Medicine (General)
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
R Medicine > RM Therapeutics. Pharmacology
Divisions: Faculty of Medicine and Health Sciences > School of Pharmacy and Bioengineering
Related URLs:
Depositing User: Symplectic
Date Deposited: 30 Sep 2021 14:02
Last Modified: 30 Sep 2021 14:02

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