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Molecular genetics of pre-B acute lymphoblastic leukemia sister cell lines during disease progression - RNA-seq


ABSTRACT: Retaining the mutational pattern of tumors, immortalized cell lines represent excellent tools for the molecular study of genetic aberrations. Tumors can consist of subclones which develop under selective forces driven by mutational alterations. This explains why after therapy, relapsed clones can be genetically distinct from clones at diagnosis. We analyzed the mutational patterns of pairs of cell lines raised at early and late phases of development from patients with a hematopoietic tumor named pre-B acute lymphoblastic leukemia (ALL). All cell lines tested showed mutations that typically occur in this tumor. We also observed clonal differences in sister cell lines, genetic aberrations developing during disease progression. Especially noteworthy was the presence of two mutations which are hitherto undescribed in cell lines.

INSTRUMENT(S): Illumina HiSeq 2500

ORGANISM(S): Homo sapiens

SUBMITTER: Claudia Pommerenke 

PROVIDER: E-MTAB-11038 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Molecular Genetics of Pre-B Acute Lymphoblastic Leukemia Sister Cell Lines during Disease Progression.

Quentmeier Hilmar H   Pommerenke Claudia C   Drexler Hans G HG  

Current issues in molecular biology 20211130 3


For many years, immortalized tumor cell lines have been used as reliable tools to understand the function of oncogenes and tumor suppressor genes. Today, we know that tumors can comprise subclones with common and with subclone-specific genetic alterations. We sequenced DNA and RNA of sequential sister cell lines obtained from patients with pre-B acute lymphoblastic leukemia at different phases of the disease. All five pairs of cell lines carry alterations that are typical for this disease: loss  ...[more]

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