The DPRA is an in chemico method which quantifies the remaining concentration of cysteine- or lysine-containing peptide following 24 hours incubation with the test chemical at 252.5ºC. The synthetic peptides contain phenylalanine to aid in the detection. Relative peptide concentration

Last updated on: 17-04-2019 - 13:23

Contact: bart Desmedt
Organisation: Sciensano, Sciensano
Partners: Sciensano
Status: History of use, Internally validated, Validated by an external party (e.g. OECD, EURL ECVAM,…)

The monocyte-activation test (MAT) is used to detect or quantify substances that activate human monocytes or monocytic cells to release endogenous mediators such as pro-inflammatory cytokines, for example tumour necrosis factor alpha (TNFα), interleukin-1 beta (IL-1β) and interleukin-6 (IL-6).

Last updated on: 27-03-2019 - 16:50

Contact: Celine Vanhee
Organisation: Sciensano
Status: Still in development, History of use

The neutral red uptake assay is a cell viability assay that allows in vitro quantification of xenobiotic-induced cytotoxicity. The assay relies on the ability of living cells to incorporate and bind neutral red, a weak cationic dye, in lysosomes. As such, cytotoxicity is expressed as a

Last updated on: 22-03-2019 - 11:27

Contact: Robim Rodrigues
Organisation: Vrije Universiteit Brussel
Status: Published in peer reviewed journal, Validated by an external party (e.g. OECD, EURL ECVAM,…)

The Ames test is a short-term bacterial reverse mutation assay specifically designed to detect a wide range of chemical substances that can produce genetic damage that leads to permanent gene mutations. The test employs several histidine dependent Salmonella strains each carrying different

Last updated on: 20-03-2019 - 17:16

Contact: Roel Anthonissen
Organisation: Sciensano
Status: Published in peer reviewed journal, Validated by an external party (e.g. OECD, EURL ECVAM,…)

E. coli is one of the organisms of choice for the production of recombinant proteins. DH5 alpha cells are commonly used for maintenance, propagation and mutation, whilst BL21(DE3) and C43(DE3) are mainly used for expression of the transgene. The advantage of C43(DE3) is that is used to produce

Last updated on: 20-03-2019 - 15:46

Organisation: Vrije Universiteit Brussel
Status: Still in development, History of use, Internally validated