Biophysical differences between chronic myelogenous leukemic quiescent and proliferating stem/progenitor cells
| Autor: | Maxim Dokukin, Igor M. Sokolov, Nataliia Guz, Sapan J. Patel, Bayard D. Clarkson |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Pathology medicine.medical_specialty Biomedical Engineering CD34 Pharmaceutical Science Medicine (miscellaneous) Bioengineering macromolecular substances Biology Article 03 medical and health sciences Myelogenous 0302 clinical medicine Single-cell analysis Leukemia Myelogenous Chronic BCR-ABL Positive hemic and lymphatic diseases medicine Humans General Materials Science Progenitor cell Atomic force microscopy Myeloid leukemia Protein-Tyrosine Kinases 030104 developmental biology 030220 oncology & carcinogenesis Imatinib Mesylate Neoplastic Stem Cells Molecular Medicine Stem cell Tyrosine kinase |
| Zdroj: | Nanomedicine: Nanotechnology, Biology and Medicine. 12:2429-2437 |
| ISSN: | 1549-9634 |
| DOI: | 10.1016/j.nano.2016.06.016 |
| Popis: | The treatment of chronic myeloid leukemia (CML), a clonal myeloproliferative disorder has improved recently, but most patients have not yet been cured. Some patients develop resistance to the available tyrosine kinase treatments. Persistence of residual quiescent CML stem cells (LSCs) that later resume proliferation is another common cause of recurrence or relapse of CML. Eradication of quiescent LSCs is a promising approach to prevent recurrence of CML. Here we report on new biophysical differences between quiescent and proliferating CD34+ LSCs, and speculate how this information could be of use to eradicate quiescent LSCs. Using AFM measurements on cells collected from four untreated CML patients, substantial differences are observed between quiescent and proliferating cells in the elastic modulus, pericellular brush length and its grafting density at the single cell level. The higher pericellular brush densities of quiescent LSCs are common for all samples. The significance of these observations is discussed. |
| Databáze: | OpenAIRE |
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