Circulating tumor cells are cells that detach from the primary tumor site and migrate to the bone marrow or other tissues where they can initiate a metastatic site. Liquid biopsies are an emerging tool in the past decades that enables us to detect Circulating Tumor Cells in patients’ blood. Flow cytometry is a powerful tool used in liquid biopsy diagnostics. This aims to prove the sensitivity and specificity of a flow cytometric panel for the detection of CTCs in breast cancer patients using healthy individuals’ samples as controls. The study was blinded to the data analyzing researcher. Statistical analysis followed and results show 86.9% area under the curve which indicates that the particular method can be very promising for diagnosing breast cancer.
Gupta, G.P. and Massagué, J. (2006) Cancer Metastasis: Building a Framework. Cell, 127, 679-695. https://doi.org/10.1016/j.cell.2006.11.001
Krebs, M.G., et al. (2011) Evaluation and Prognostic Significance of Circulating Tumor Cells in Patients with Non-Small-Cell Lung Cancer. Journal of Clinical Oncology, 29, 1556-1563. https://doi.org/10.1200/JCO.2010.28.7045
Cohen, S.J., et al. (2008) Relationship of Circulating Tumor Cells to Tumor Response, Progression-Free Survival, and Overall Survival in Patients with Metastatic Colorectal Cancer. Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology, 26, 3213-3221. https://doi.org/10.1200/JCO.2007.15.8923
de Bono, J.S., et al. (2008) Circulating Tumor Cells Predict Survival Benefit from Treatment in Metastatic Castration-Resistant Prostate Cancer. Clinical Cancer Research: An Official Journal of the American Association for Cancer Research, 14, 6302-6309. https://doi.org/10.1158/1078-0432.CCR-08-0872
Cristofanilli, M., et al. (2004) Circulating Tumor Cells, Disease Progression, and Survival in Metastatic Breast Cancer. The New England Journal of Medicine, 351, 781-791. https://doi.org/10.1056/NEJMoa040766
Poruk, K.E., et al. (2016) Circulating Tumor Cell Phenotype Predicts Recurrence and Survival in Pancreatic Adenocarcinoma. Annals of Surgery, 264, 1073-1081. https://doi.org/10.1097/SLA.0000000000001600
Jansson, S., Bendahl, P.-O., Larsson, A.-M., Aaltonen, K.E. and Rydén, L. (2016) Prognostic Impact of Circulating Tumor Cell Apoptosis and Clusters in Serial Blood Samples from Patients with Metastatic Breast Cancer in a Prospective Observational Cohort. BMC Cancer, 16, 433. https://doi.org/10.1186/s12885-016-2406-y
Divella, R., et al. (2014) The Presence of Clustered Circulating Tumor Cells (CTCs) and Circulating Cytokines Define an Aggressive Phenotype in Metastatic Colorectal Cancer. Cancer Causes Control, 25, 1531-1541. https://doi.org/10.1007/s10552-014-0457-4
Allard, W.J., et al. (2004) Tumor Cells Circulate in the Peripheral Blood of All Major Carcinomas But Not in Healthy Subjects or Patients with Nonmalignant Diseases. Clinical Cancer Research: An Official Journal of the American Association for Cancer Research, 10, 6897-6904. https://doi.org/10.1158/1078-0432.CCR-04-0378
Chen, L.M., Lazcano, O., Katzmann, J.A., Kimlinger, T.K. and Li, C.Y. (1998) The Role of Conventional Cytology, Immunocytochemistry, and Flow Cytometric DNA Ploidy in Evaluation of Body Cavity Fluids: A Prospective Study of 52 Patients. American Journal of Clinical Pathology, 109, 712-721. https://doi.org/10.1093/ajcp/109.6.712
Schneller, J., Eppich, E., Greenebaum, E., Elequin, F., Sherman, A., Wersto, R. and Koss, L.G. (1987) Flow Cytometry and Feulgen Cytophotometry in Evaluation of Effusions. Cancer, 59, 1307-1313. https://doi.org/10.1002/1097-0142(19870401)59:7 3.0.CO;2-Q
Unger, K.M., Raber, M., Bedrossian, C.W., Stein, D.A. and Barlogie, B. (1983) Analysis of Pleural Effusions Using Automated Flow Cytometry. Cancer, 52, 873-877. https://doi.org/10.1002/1097-0142(19830901)52:5 3.0.CO;2-V
Krishan, A., Ganjei-Azar, P., Jorda, M., Hamelik, R.M., Reis, I.M. and Nadji, M. (2006) Detection of Tumor Cells in Body Cavity Fluids by Flow Cytometric and Immuncytochemical Analysis. Diagnostic Cytopathology, 34, 528-541. https://doi.org/10.1002/dc.20496
Fuchs, E. and Cleveland, D.W. (1998) A Structural Scaffolding of Intermediate Filaments in Health and Disease. Science, 279, 514-519. https://doi.org/10.1126/science.279.5350.514
Pollard, T.D. and Cooper, J.A. (2009) Actin, a Central Player in Cell Shape and Movement. Science, 326, 1208-1212. https://doi.org/10.1126/science.1175862
Herrmann, H., Strelkov, S.V., Burkhard, P. and Aebi, U. (2009) Intermediate Filaments: Primary Determinants of Cell Architecture and Plasticity. Journal of Clinical Investigation, 119, 1772-1783. https://doi.org/10.1172/JCI38214
Anderson, J.M., Heindl, L.M., Bauman, P.A., Ludi, C.W., Dalton, W.S. and Cress, A.E. (1996) Cytokeratin Expression Results in a Drug-Resistant Phenotype to Six Different Chemotherapeutic Agents. Clinical Cancer Research, 2, 97-105.
Nakano, A., Harada, T., Morikawa, S. and Kato, Y. (1990) Expression of Leukocyte Common Antigen (CD45) on Various Human Leukemia/Lymphoma Cell Lines. Acta Pathologica Japonica, 40, 107-115. https://doi.org/10.1111/j.1440-1827.1990.tb01549.x
Liu, L. and Shi, G.-P. (2012) CD31: Beyond a Marker for Endothelial Cells. Cardiovascular Research, 9, 3-5. https://doi.org/10.1093/cvr/cvs108
Siegel, R.L., Miller, K.D. and Jemal, A. (2019) Cancer Statistics, 2019. CA: A Cancer Journal for Clinicians, 69, 7-34. https://doi.org/10.3322/caac.21551
Shyamala, K., Girish, H.C. and Murgod, S. (2014) Risk of Tumor Cell Seeding through Biopsy and Aspiration Cytology. Journal of International Society of Preventive and Community Dentistry, 4, 5-11. https://doi.org/10.4103/2231-0762.129446
Alimirzaie, S., Bagherzadeh, M. and Akbari, M.R. (2019) Liquid Biopsy in Breast Cancer: A Comprehensive Review. Clinical Genetics, 95, 643-660. https://doi.org/10.1111/cge.13514
Marrugo-Ramírez, J., Mir, M. and Samitier, J. (2018) Blood-Based Cancer Biomarkers in Liquid Biopsy: A Promising Non-Invasive Alternative to Tissue Biopsy. International Journal of Molecular Sciences, 19, 2877. https://doi.org/10.3390/ijms19102877
Cristofanilli, M. (2009) The Biological Information Obtainable from Circulating Tumor Cells. The Breast, 18, S38-S40. https://doi.org/10.1016/S0960-9776(09)70270-X
Riethdorf, S., Fritsche, H., Müller, V., Rau, T., Schindlbeck, C., Rack, B., Janni, W., Coith, C., Beck, K., Janicke, F., Jackson, S., Gornet, T., Cristofanilli, M. and Pantel, K. (2007) Detection of Circulating Tumor Cells in Peripheral Blood of Patients with Metastatic Breast Cancer: A Validation Study of the Cell Search System. Clinical Cancer Research, 13, 920-928. https://doi.org/10.1158/1078-0432.CCR-06-1695