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Research areas
    ADME-Tox
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Tebubio's blog - Acting and reacting in life sciences and biotechnologies
  • Home
  • Research areas
    • ADME-Tox
    • Biomarkers
    • Cell Biology and Signalling
    • Cell Sourcing – Cell Culture Technologies
    • Drug Discovery
    • Gene Expression – Molecular Biology
    • Stem Cells
    • Supplying Discovery Tools
  • Contact us
  • Meet the authors
Supplying Discovery Tools

Adenovirus-based KO

22/11/2019 by Dimitri Szymczak, PhD No Comments

Knock-out of a gene of interest is a useful gene-editing strategy to validate a gene function, to develop a synthetic lethality model or directly mimic a cancer cell in drug screening. Unfortunately, non-dividing cells and hard-to-transfect cells are a major challenge for such genome-editing. However, there is an ideal solution that deserves to be more popular, the use of adenovirus.

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Supplying Discovery Tools

New – you know CRISPR, now it’s Prime Editing

28/10/2019 by Dimitri Szymczak, PhD No Comments

This month, a new leap forward in gene editing has been published in Nature under the title ‘Search-and-replace genome editing without double-strand breaks or donor DNA’. DOI: 10.1038/s41586-019-1711-4. Let’s take a look at prime editing to get a clear overview.

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Supplying Discovery Tools

Gene knock-out in hard-to-transfect cells

22/10/2019 by Dimitri Szymczak, PhD No Comments

Gene knock-out, which is gene editing leading to loss of function, just requires delivering into cells the 2 CRISPR system actors: the CAS9 endonuclease and the specific guide RNA to target the gene of interest. Thus, simple transfection of CleanCap CAS9 mRNA and gRNA followed by cell isolation with the smart aliquotor is a convenient and robust method. Howevery, what can you do if the cells are hard-to-transfect?

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Supplying Discovery Tools

New ATM and ATR inhibitor biomarker – How to study key sensors of DNA damage

19/02/2019 by Dimitri Szymczak, PhD No Comments

Gemma N. Jones et al has recently published in the British Journal of Cancer an article revealing pRAD50 (Ser635) as a pharmacodynamic biomarker of ATM (AZD0156) and ATR inhibitors (AZD6738) to treat cancers. doi:10.1038/s41416-018-0286-4

Key sensors of DNA damage such as ATM and ATR are targets of choice for drug discovery. A useful screening method is based on synthetic lethality. The pre-screening can be done on convenient HeLa cells.

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