Technology Platform: ChemStress Fingerprinting

The ChemStress Fingerprinting plate simulates the biological and environmental stresses a cell clone encounters in a bioreactor. Each of the wells of the ChemStress Fingerprinting 96-well plate are pre-coated with multiple small molecule chemicals, which re-create the environmental and biological stresses of a bioreactor. Each chemical has been carefully selected to challenge a particular aspect of a cell clones biochemistry. Some of these challenges include: Nutrient Starvation; Oxidative Stress; pH, Osmolarity and Toxicity. For example, Brefeldin A inhibits protein transport and is a lactone antibiotic.

Process Control with ChemStress Fingerprinting


How To Generate A ChemStress Fingerprint

An individual cell clone is grown in the ChemStress plate for 3 days. After exposure to the chemical stressors, clonal growth and product titre are measured in response to each of the chemical stressors. This is read on a plate reader and analysed using the Valitacell software 'ValitaAPP'. ValitaAPP performs the analysis of a cell clones growth and titre profile using product-specific algorithms. This makes up a clones ChemStresss Fingerprint, and this fingerprint is unique to an individual cell clone or a media batch. 


1) An individual cell clone is grown in the ChemStress plate for 3 days and exposed to the numerous small molecule chemicals 2) A clones growth and productivity are measured on a plate reader 3) ValitaAPP software applies product-specific algorithms to analyse the growth and titre data and a ChemStress fingerprint is generated.