摘要:
This invention concerns systems for collecting and storing epigenetic and phenotypic information about samples in order to measure and analyse tissue samples and/or cell lines, where the epigenetic parameter is DNA methylation and the phenotypic parameters describe an individual. The method includes parameters such as the diagnosis of diseases and/or drug resistance, wherein the correlation of the epigenetic with the phenotypic parameters is done substantially without human intervention.
摘要:
The invention relates to a method for providing demethylated DNA as a reference material for analyzing cytosine methylations in genomic DNA samples while using complex amplifications. To this end, the following method steps are carried out: a) a genomic DNA sample is amplified with primers that are either very short or degenerated oligonucleotides or oligonucleotides that are complementary to adapters. In the second case, the DNA sample is cut by a restriction enzyme before amplification, and the adapters, understood as short nucleotide fragments of a known sequence, ligate to the ends of the resulting DNA fragments. The amplificates are chemically treated in such a manner that cytosine bases, which are unmethylated at the 5-position, are transformed into uracil, thymine or into another base that is dissimilar to cytosine with regard to hybridization behavior, whereas the 5-methylcytosine bases remain essentially unchanged. This is understood in the following as chemical pretreatment. The chemically pretreated amplificates are, in turn, amplified. To this end, a number of specifically hybridizing oligonucleotides or oligonucleotides that are complementary to the adapters are used as primers. In the latter case, the chemical pretreatment is also carried out.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with cell cycle, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with cell cycle which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with cell cycle.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with metastasis, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with metastasis which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with metastasis.
摘要:
The invention relates to a method for detecting cytosine methylation in DNA samples. The inventive method comprises the following steps: a genomic DNA sample containing DNA to be examined and background DNA is chemically treated in such a way that all non-methylated cytosine bases are converted into uracil, the 5-methylcytosine bases remaining unchanged; the chemically treated DNA samples are amplified using at least two primer oligonucleotides and one polymerase, the DNA to be examined being preferred as a template as opposed to the background DNA; the amplificates are analysed; and the methylation status in the DNA to be examined is inferred from the presence of an amplificate and/or from the analysis of further positions.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with DNA repair, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with DNA repair which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with DNA repair.
摘要:
The invention relates to the chemically modified genomic sequence of the Cdk4 gene, to oligonucleotides and/or PNA oligomers for detecting the cytosine methylation condition of the Cdk4 gene and to a method for determining genetic and/or epigenetic parameters of the Cdk4 gene.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with behavioural disorders, neurological disorders and cancer, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with behavioural disorders, neurological disorders and cancer which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with behavioural disorders, neurological disorders and cancer.