H19 and IGF-2 allele-specific expression in hepatoblastoma
نویسندگان
چکیده
منابع مشابه
Coordinate regulation of Igf-2 and H19 in cultured cells.
The insulin-like growth factor 2 (Igf-2) and H19 genes are physically linked on mouse distal chromosome 7 and are reciprocally imprinted. We investigated the molecular basis of the parental imprints in somatic cell cultures derived from normal embryos or from their littermates with maternal uniparental disomy for distal chromosome 7 (MatDi7). In normal cells, the two genes appeared to respond t...
متن کاملAssociation of H19 promoter methylation with the expression of H19 and IGF-II genes in adrenocortical tumors.
Low H19 and abundant IGF-II expression may have a role in the development of adrenocortical carcinomas. In the mouse, the H19 promoter area has been found to be methylated when transcription of the H19 gene is silent and unmethylated when it is active. We used PCR-based methylation analysis and bisulfite genomic sequencing to study the cytosine methylation status of the H19 promoter region in 1...
متن کاملQuantitative Allele-Specific Expression and DNA Methylation Analysis of H19, IGF2 and IGF2R in the Human Placenta across Gestation Reveals H19 Imprinting Plasticity
Imprinted genes play important roles in placental differentiation, growth and function, with profound effects on fetal development. In humans, H19 and IGF2 are imprinted, but imprinting of IGF2R remains controversial. The H19 non-coding RNA is a negative regulator of placental growth and altered placental imprinting of H19-IGF2 has been associated with pregnancy complications such as preeclamps...
متن کاملVisualizing allele-specific expression in single cells reveals epigenetic mosaicism in an H19 loss-of-imprinting mutant.
Imprinting is a classic mammalian epigenetic phenomenon that results in expression from a single parental allele. Imprinting defects can lead to inappropriate expression from the normally silenced allele, but it remains unclear whether every cell in a mutant organism follows the population average, which would have profound implications for human imprinting disorders. Here, we apply a new fluor...
متن کاملAllele-specific gene expression uncovered.
Genetic variation in populations can result in variation in levels of gene expression but the extent to which this occurs has been unclear. In this article, recent studies of allele-specific expression among autosomal non-imprinted genes are reviewed. These new data provide evidence that differential expression is relatively common and that allelic differences are heritable and can be highly co...
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ژورنال
عنوان ژورنال: British Journal of Cancer
سال: 2000
ISSN: 0007-0920,1532-1827
DOI: 10.1054/bjoc.1999.0992