Endotoxins are lipopolysaccharides anchored at the outer membrane of gram-negative bacteria. These pyrogenic compounds can be introduced in pharmaceutical products during their manufacture and could induce severe physiological reactions in humans. This is why endotoxins are dosed, in order to assure
Last updated on: 28-09-2023 - 11:59
Contact: Flore Laurent
Organisation: Sciensano
Status: Internally validated, Validated by an external party (e.g. OECD, EURL ECVAM,…)
The purpose of the present development is to use avian MoDCs to implement a cellular platform to increase understanding of the immune responses induced by various antigens of interest (e.g. vaccine candidates) and evaluate their immunogenic potential. Considering the difficulty to work on dendritic
Last updated on: 03-02-2023 - 08:51
For the risk assessment of compounds migrating from food contact materials (FCM), information on the exposure to the migrant as well as its possible hazards is needed. To support the evaluation of both starting products and NIAS from plastic FCM, the VERMEER FCM tool has been developed within the
Last updated on: 29-11-2022 - 14:46
The in vitro micronucleus test is a genotoxicity test for the detection of micronuclei in the cytoplasm of interphase cells and has been described in detail in OECD TG 487. Micronuclei may originate from acentric chromosome fragments (i.e. lacking a centromere), or whole chromosomes that
Last updated on: 23-11-2022 - 16:31
Contact: Birgit Mertens
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: 03-11-2022 - 07:25
Contact: Jessie Neuckermans
Organisation: Vrije Universiteit Brussel (VUB)
Status: Still in development, History of use, Internally validated
In silico tools are computer-assisted methodologies with a high-throughput that allow to predict the toxic potential of compounds without experimental testing. Consequently, in silico tools are time-, cost- and animal-saving in nature. The most commonly used methods are (quantitative) structure
Last updated on: 24-03-2022 - 11:25
The tetanus neurotoxin (TeNT) is one of the most toxic proteins known to man, which prior to the use of the vaccine against the TeNT producing bacteria Clostridium tetani, resulted in a 20% mortality rate upon infection. The clinical detrimental effects of tetanus have decreased immensely since the
Last updated on: 22-03-2022 - 16:49
The CALUX method is an in vitro bioassay that uses reporter gene cell lines that have been stably transfected with a luciferase reporter gene under the control of relevant receptor specific DNA response element. This enables the screening for chemicals that can bind to specific receptors and
Last updated on: 16-03-2022 - 14:47
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 concentration
Last updated on: 28-02-2022 - 11:04
Contact: Robim Rodrigues
Organisation: Vrije Universiteit Brussel (VUB)
Status: Published in peer reviewed journal, Validated by an external party (e.g. OECD, EURL ECVAM,…)
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 is
Last updated on: 22-02-2022 - 10:59
Contact: Bart Desmedt
Organisation: Sciensano
Status: History of use, Internally validated, Validated by an external party (e.g. OECD, EURL ECVAM,…)
