| Metastasis-focused cell-based SELEX generates aptamers inhibiting cell migration and invasion. | |
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MedLine Citation:
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PMID: 20473891 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Metastasis, the capacity of tumour cells to disseminate and grow at distant sites, is the main factor in cancer mortality. Compounds inhibiting migration and invasion of cancer cells are promising candidates for anticancer therapy strategies. We have generated nuclease-resistant RNA ligands (aptamers) recognizing highly metastatic cells with high affinity and specificity, and inhibiting their migratory and invasive potentials. Aptamers were generated by a cell-based subtractive SELEX technology using isogenic cell lines with similar tumorigenic potentials but opposite metastatic aggressiveness. Two aptamers, E37 and E10, bound specifically to the metastatically aggressive cell line and altered the phosphorylation of several tyrosine kinases. Fluorescent microscopy showed intracellular uptake of E37, in contrast to membrane binding of E10. Both aptamers inhibited migration of tumour cells in culture (50 and 85% inhibition with respect to control pool for E10 and E37, respectively) while only E10 inhibited cell invasion (-75% with respect to control pool). This proof-of-concept study demonstrates the potential of cell-based SELEX to yield ligands that selectively recognize aggressive metastatic cells and inhibit phenotypes linked to metastatic potential. |
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Authors:
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Elina Zueva; Laila Illán Rubio; Frédéric Ducongé; Bertrand Tavitian |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: International journal of cancer. Journal international du cancer Volume: 128 ISSN: 1097-0215 ISO Abbreviation: Int. J. Cancer Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2010-12-24 Completed Date: 2011-01-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0042124 Medline TA: Int J Cancer Country: United States |
Other Details:
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Languages: eng Pagination: 797-804 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 UICC. |
Affiliation:
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Inserm, U1023, 91400 Orsay, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Aptamers, Nucleotide / therapeutic use* Blotting, Western Breast Neoplasms / genetics, pathology*, prevention & control* Cell Adhesion Cell Line, Transformed Cell Movement* Cricetinae Embryo, Mammalian / cytology, metabolism Female Fibroblasts / cytology, metabolism Humans Mesocricetus Mice NIH 3T3 Cells Neoplasm Invasiveness Phosphorylation SELEX Aptamer Technique* Wound Healing |
| Chemical | |
Reg. No./Substance:
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0/Aptamers, Nucleotide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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