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Genome-wide binding and function of isoforms and mutant forms of the Wilms' tumor gene 1 (WT1) protein in leukemic cells.

Acute leukemia is the most common cancer among children but appears also in adults at all ages. Perturbed function of several transcription factors has been implicated in the pathogenesis of leukemia, and among these is the Wilms´ tumor gene 1 protein (WT1). WT1 is commonly overexpressed in leukemia and is also recurrently mutated. In agreement with this, clinical as well as experimental data indicate WT1 as an oncogene. The full transcriptional target repertoire and function of WT1 in leukemia is, however, poorly understood. We hypothesize that certain isoforms and mutant forms of WT1 have specific DNA-binding properties. Thus, the decomposition of the normal isoform-balance, or the mutations recurrently observed in leukemia, would disorient normal transcriptional effects of WT1, contributing to the leukemic phenotype. To seek support for this hypothesis, we investigate the molecular function of different forms of WT1 genome-wide, as well as on specific target genes. We use cellular models allowing isoform- and mutantspecific chromatin immunoprecipitation, followed by deep sequencing (Chip-Seq). For gene-specific analyses, we utilize molecular biology techniques such as promoter reporter and EMSA experiments. Transcriptional effects are investigated by transduction and transcriptional profiling. The results of the investigation will provide novel insights into the pathophysiology of WT1, which could lead to development of improved therapy.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 3 - Good Health and Well-being

UKÄ subject classification

  • Cancer and Oncology


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