Genomics

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SmRNA sequencing analysis to identify p53-dependent non-coding RNA networks in Chronic Lymphocytic Leukemia


ABSTRACT: Mutations of the tumor suppressor p53 lead to chemotherapy resistance and a dismal prognosis in chronic lymphocytic leukemia (CLL). Comparing miRNA/non-coding RNA expression profiles between p53 wild-type and p53 mutant samples in response to DNA damage, we exploit the impaired transcriptional activity of mutant p53 to map out p53 targets in primary CLL by small RNA sequencing. Focusing on miRNAs, we identify a set of p53-dependent miRNAs (miR-182-5p, miR-7-5p, miR-320c/d) in addition to the key p53 target miR-34a. Beyond miRNAs, the long non-coding RNAs (lncRNAs) NEAT1 and lincRNA-p21 are induced in response to DNA damage in the presence of functional p53 but not in CLL with p53 mutation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE66186 | GEO | 2015/05/01

SECONDARY ACCESSION(S): PRJNA276078

REPOSITORIES: GEO

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