Oligonucleotide analogs capable of passive cell membrane permeation
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United States of America Patent
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May 27, 1997
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app pub date -
Apr 14, 1992
filing date -
Apr 14, 1992
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Abstract
Oligonucleotides that are capable of passive diffusion across cell membranes are disclosed. These oligonucleotides contain at least two nucleotide residues and show a log distribution coefficient in octanol:water of about 0.0-2.5 and a solubility in water of at least 0.001 .mu.g/mL. In preferred embodiments, either at least 80% of the internucleotide linkages are non-ionic, or at least 80% of the bases contain lipophilic hydrocarbyl substitutions, or a combination of these sums to 80%. These oligonucleotides may be conjugated to label and used to visualize cells.
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