Developing of inducible cell lines for study gene gain of function

Bosnakovski, Darko and Mitanoska, Ana and Michael, Kyba (2013) Developing of inducible cell lines for study gene gain of function. In: Working Group Meeting Chemical Approaches to Targeting Drug Resistance in Cancer Stem Cells, 21–22 Feb 2013, Porto, Portugal.

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Many biological problems are amenable to comparative gain of function experimental approaches. Conventional approach by introducing expression vector at random integration sites are confounded by expression variation. Besides in mouse embryonic stem cells, gene targeting by homologous recombination is not possible in most cell lines. We developed novel expression system based on conditional Tet-on regulation with selectable Cre/Lox cassette exchange in a single-copy integration vector. We demonstrated method for generation of cell lines with highly efficient inducible cassette exchange target loci. This system can be introduce in cell lines despite of their origin, differentiation stage or proliferation ability. Our system is ideal for comparative gain of function studies, such as comparing phenotypic effects of various genes, or evaluating mutants of a given gene. The conditional nature of the expression system facilitates work with genes with toxic phenotypes that would affect generation of stable cell lines. The most important is to generate clonal cell line in which there is single inducible locus, which is expressed robustly, it is not silenced, and it is not leaky. In this presentation we will show successful generation of various inducible cell lines, including human embryonic stem cell line, and we will discuss the possibility of using our system for modifying various cancer cell lines.

Item Type: Conference or Workshop Item (Speech)
Subjects: Natural sciences > Biological sciences
Divisions: Faculty of Medical Science
Depositing User: Darko Bosnakovski
Date Deposited: 24 Jan 2014 11:59
Last Modified: 24 Jan 2014 11:59

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