کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5560043 1403307 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The current limitations of in vitro genotoxicity testing and their relevance to the in vivo situation
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
The current limitations of in vitro genotoxicity testing and their relevance to the in vivo situation
چکیده انگلیسی


- Various origins of misleading predictive results with in vitro genotoxicity tests (metabolic activation system, cell type …).
- Knowledge of actual limitations of in vitro genotoxicity test systems to avoid or reduce misleading interpretations.
- Knowledge of the underlying mechanism(s) of genotoxicity action to assess the level of relevance for the in vivo situation.

The standard regulatory core battery of genotoxicity tests generally includes 2 or 3 validated tests with at least one in vitro test in bacteria and one in vitro test on cell cultures. However, limitations in in vitro genotoxicity testing may exist at many levels. The knowledge of the underlying mechanisms of genotoxicity is particularly useful to assess the level of relevance for the in vivo situation. In order to avoid wrong conclusions regarding the actual genotoxicity status of any test substance, it appears very important to be aware of the various origins of related bias leading to 'false positives and negatives' by using in vitro methods. Among these, mention may be made on the metabolic activation system, experimental (extreme) conditions, specificities of the test systems implemented, cell type used etc. The knowledge of the actual 'limits' of the in vitro test systems used is clearly an advantage and may contribute to avoid some pitfalls in order to better assess the level of relevance for the in vivo situation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Chemical Toxicology - Volume 106, Part B, August 2017, Pages 609-615
نویسندگان
,