Polycomb-associated non-coding RNAS
First Claim
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1. A method of producing an oligonucleotide for inducing expression of a non-imprinted target gene, the method comprising:
- i) performing an immunoprecipitation assay using an antibody directed against PRC2 to immunoprecipitate a PRC2-binding RNA from a cell, wherein the PRC2-binding RNA is not ANRIL lncRNA, is transcribed from a sequence of the chromosomal locus of the non-imprinted target gene and inhibits expression of the target gene in the cell, wherein the immunoprecipitation assay comprises;
a) providing a sample comprising RNA bound nuclear proteins from the cell;
b) contacting the sample with an antibody directed against PRC2 under conditions sufficient to form complexes between the antibody and PRC2; and
c) isolating the complexes, wherein the isolated complexes comprise the PRC2-binding RNA bound to PRC2;
ii) detecting a PRC2-binding region of the PRC2-binding RNA by subjecting the PRC2-binding RNA of the isolated complexes to a sequencing assay, wherein the PRC2 binding region is detected as a nucleotide sequence of the PRC2-binding RNA that is protected from nucleases during the immunoprecipitation assay; and
iii) producing an isolated oligonucleotide of 8 to 40 nucleotides in length having a region of complementarity that is complementary with at least 5 contiguous nucleotides of the PRC2-binding region of the PRC2-binding RNA, wherein the oligonucleotide induces expression of the non-imprinted target gene.
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Abstract
This invention relates to long non-coding RNAs (lncRNAs), libraries of those ncRNAs that bind chromatin modifiers, such as Polycomb Repressive Complex 2, inhibitory nucleic acids and methods and compositions for targeting lncRNAs.
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Citations
27 Claims
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1. A method of producing an oligonucleotide for inducing expression of a non-imprinted target gene, the method comprising:
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i) performing an immunoprecipitation assay using an antibody directed against PRC2 to immunoprecipitate a PRC2-binding RNA from a cell, wherein the PRC2-binding RNA is not ANRIL lncRNA, is transcribed from a sequence of the chromosomal locus of the non-imprinted target gene and inhibits expression of the target gene in the cell, wherein the immunoprecipitation assay comprises; a) providing a sample comprising RNA bound nuclear proteins from the cell; b) contacting the sample with an antibody directed against PRC2 under conditions sufficient to form complexes between the antibody and PRC2; and c) isolating the complexes, wherein the isolated complexes comprise the PRC2-binding RNA bound to PRC2; ii) detecting a PRC2-binding region of the PRC2-binding RNA by subjecting the PRC2-binding RNA of the isolated complexes to a sequencing assay, wherein the PRC2 binding region is detected as a nucleotide sequence of the PRC2-binding RNA that is protected from nucleases during the immunoprecipitation assay; and iii) producing an isolated oligonucleotide of 8 to 40 nucleotides in length having a region of complementarity that is complementary with at least 5 contiguous nucleotides of the PRC2-binding region of the PRC2-binding RNA, wherein the oligonucleotide induces expression of the non-imprinted target gene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of producing an oligonucleotide for inducing expression of a non-imprinted target gene in a cell, the method comprising:
producing an isolated oligonucleotide of 8 to 40 nucleotides in length having a region of complementarity that is complementary with at least 5 contiguous nucleotides of a PRC2-binding RNA that is not ANRIL lncRNA, is transcribed from a sequence of the chromosomal locus of the non-imprinted target gene and that inhibits expression of the target gene, wherein the oligonucleotide is complementary to and bind specifically within a PRC2-binding region of the PRC2-binding RNA, wherein the PRC2-binding region is determined to have a nucleotide sequence that is protected from nucleases during an RNA immunoprecipitation procedure using an antibody directed against PRC2, wherein the oligonucleotide interferes with binding of PRC2 to the PRC2-binding region without inducing degradation of the PRC2-binding RNA, and wherein the oligonucleotide induces expression of the non-imprinted target gene.
Specification