期刊
FEBS LETTERS
卷 510, 期 3, 页码 175-180出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-5793(01)03248-3
关键词
antisense oligonucleotide; double strand; cell aggregation; G-quartet; neurite; platelet
Oligonucleotides induce various cellular responses which are not due to the blockade of protein synthesis by an antisense mechanism. Oligonucleotides presenting double-stranded or G-quartet structures (ribo- or deoxyribonucleotides, phosphodiester or phosphorothioated) induce retraction of neurites and aggregation of chicken retinal cells within 10-20 h. This effect is reversible, non-toxic; it appears to require internalization and can be mimicked by treatment of the cells with an RGDS peptide. The oligonucleotides appear to trigger a cascade of intracellular events, affecting the adhesive properties of integrins. In addition, a subset of oligonucleotides induced platelet aggregation, probably through their interaction with membrane receptors. Recognition of these effects is important for the design and interpretation of antisense experiments. (C) 2002 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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