Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 440500
Title Assessment of the usefulness of the murine cytotoxic T cell line CTLL-2 for immunotoxicity screening by transcriptomics
Author(s) Schmeits, P.C.; Volger, O.L.; Zandvliet, E.T.; Loveren, H. van; Peijnenburg, A.; Hendriksen, P.J.
Source Toxicology Letters 217 (2013)1. - ISSN 0378-4274 - p. 1 - 13.
Department(s) BU Toxicology, Novel Foods & Agrochains
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) ribotoxic stress-response - activated protein-kinase - tri-n-butyltin - proinflammatory gene-expression - oxidative-phosphorylation - organotin compounds - in-vitro - deoxynivalenol don - heme oxygenase - rat thymocytes
Abstract A toxicogenomics approach was applied to assess the usefulness of the mouse cytotoxic T cell line CTLL-2 for in vitro immunotoxicity testing. CTLL-2 cells were exposed for 6 h to two model immunotoxic compounds: (1) the mycotoxin deoxynivalenol (DON, 1 and 2 µM), a ribotoxic stress inducer, and (2) the organotin compound tributyltin oxide (TBTO, 100 and 200 nM), an endoplasmic reticulum (ER) stress inducer. Effects on whole-genome mRNA expression were assessed by microarray analysis. The biological interpretation of the microarray data indicated that TBTO (200 nM) induced genes involved in T cell activation, ER stress, NF¿B activation and apoptosis, which agreed very well with results obtained before on TBTO exposed Jurkat cells and mouse primary thymocytes. Remarkably, DON (2 µM) downregulated genes involved in T cell activation, ER stress and apoptosis, which is opposite to results obtained before for DON-exposed Jurkat cells and mouse primary thymocytes. Furthermore, the results for DON in CTLL-2 cells are also opposite to the results obtained for TBTO in CTLL-2 cells. In agreement with the lack of induction of ER stress and apoptosis, viability assays showed that CTLL-2 cells are much more resistant to the toxicity of DON than Jurkat cells and primary thymocytes. We propose that CTLL-2 cells lack the signal transduction that induces ER stress and apoptosis in response to ribotoxic stress. Based on the results for TBTO and DON, the CTLL-2 cell line does not yield an added value for immunotoxicity compared to the human Jurkat T cell line
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