Aggressive Phenotype of Cells Disseminated Via Hematogenous and Lymphatic Route in Breast Cancer Patients
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Intratumoral heterogeneity of breast cancer remains a major challenge in successful treatment. Failure of cancer therapies can also be accredited to inability to systemically eradicate cancer stem cells (CSCs). Recent evidence points to the role of epithelial-mesenchymal transition (EMT) in expanding the pool of tumor cells with CSCs features. Thus, we assessed expression level as well as heterogeneity of CSCs markers in primary tumors (PT), lymph node metastasis (LNM), and circulating tumor cells (CTCs)-enriched blood fractions in order to correlate them with signs of EMT activation as well as clinicopathological data of breast cancer patients. Level of CSCs markers (ALDH1, CD44, CD133, OCT-4, NANOG) and EMT markers was quantified in PT (N=107), LNM (N=56), and CTCs-enriched blood fractions (N=85). Heterogeneity of CSCs markers expression within each PT and LNM was assessed by calculating Gini Index. Percentage of ALDH1-positive cells was elevated in PT in comparison to LNM (P = .005). However, heterogeneity of the four CSCs markers: ALDH1 (P = .019), CD133 (P = .009), OCT-4 (P = .027), and CD44 (P < .001) was decreased in LNM. Samples classified as mesenchymal (post-EMT) showed elevated expression of CSCs markers (OCT-4 and CD44 in PT; OCT-4 in LNM; ALDH1, OCT-4, NANOG, CD44 in CTCs). Patients with mesenchymal-like CTCs had worse prognosis than patients with epithelial-like or no CTCs (P = .0025). CSCs markers are enriched in PT, LNM, and CTCs with mesenchymal features, but their heterogeneity is decreased in metastatic lymph nodes. Mesenchymal CTCs phenotype correlates with poor prognosis of the patients.
Isolation of Viable Epithelial and Mesenchymal Circulating Tumor Cells from Breast Cancer Patients.
Topa J, Zaczek A, Markiewicz A Methods Mol Biol. 2024; 2752:43-52.
PMID: 38194026 DOI: 10.1007/978-1-0716-3621-3_3.
Muchlinska A, Wenta R, Scinska W, Markiewicz A, Suchodolska G, Senkus E Cancers (Basel). 2023; 15(16).
PMID: 37627197 PMC: 10453498. DOI: 10.3390/cancers15164169.
Ramos I, da Silva M, Lopes J, Cruz J, Alves F, Rego J Molecules. 2023; 28(14).
PMID: 37513459 PMC: 10385350. DOI: 10.3390/molecules28145587.
Wang L, Ding D Am J Transl Res. 2023; 15(1):502-510.
PMID: 36777844 PMC: 9908443.
Breast cancer circulating tumor cells with mesenchymal features-an unreachable target?.
Topa J, Gresner P, Zaczek A, Markiewicz A Cell Mol Life Sci. 2022; 79(2):81.
PMID: 35048186 PMC: 8770434. DOI: 10.1007/s00018-021-04064-6.