Description: Mit der Neugestaltung des europäischen Chemikalienrechtes REACH ergibt sich die Notwendigkeit, für alle zu registrierenden Stoffe toxikologische Daten unter Berücksichtigung der Expositionssituation vorzulegen. Ziel des Vorhabens ist daher die Reduktion von Tierversuchen bei der Bestimmung der akuten Zyto- und Gentoxizität von inhalierbaren Industriechemikalien durch eine In-vitro-Methode zur standardisierten Direktexposition von Lungenzellen des Menschen (Zelllinie A549). Die Funktionalität der Methode zur Direktexposition von kultivierten Zellen zur Erfassung akuter Zyto- & Gentoxizität soll erprobt und nachgewiesen werden, wobei der Versuchsaufbau zur Demonstration der Übertragbarkeit zu den Projektpartnern transferiert wird. Partner I realisiert den Versuchsaufbau und Transfer, Einweisung der Kooperationspartner, die chemisch-analytische Kontrolle der Expositionsatmosphäre sowie Koordination des Projektes. Das Verfahren dient im Erfolgsfall zur Erfassung der akuten Toxizität inhalierbarer Stoffe in vitro . Unter Einbeziehung von Tierversuchsdaten (Literatur) soll ein Prädiktionsmodell zur Vorhersage der toxikologischen Wirkung aufgrund von In-vitro-Studien arbeitet werden.
Types:
SupportProgram
Origins:
/Bund/UBA/UFORDAT
Tags:
Inhalation
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Chemikalienrecht
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Genotoxizität
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Akute Toxizität
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Industriechemikalien
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Lunge
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Mensch
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Tierversuch
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Toxizität
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REACH
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Vermeidung von Tierversuchen
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Schadstoff
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Lungenzellen
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Prävalidierung
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Validierung
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Zellkultur, Biotest
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Region:
Niedersachsen
License: cc-by-nc-nd/4.0
Language: Deutsch
Organisations
Time ranges:
2007-10-01 - 2009-09-30
Alternatives
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Language: Englisch/English
Title: Prevalidation study to test the toxic effects of inhalable substances (gases) after direct exposure of human lung cells at the air/liquid interface - Part 1
Description: Prevalidation study to test the toxic effects of inhalable substances (gases) after direct exposure of human lung cells at the air/liquid interface Following the reorganisation of the European chemicals legislation REACH (Registration, Evaluation and Authorisation of Chemicals), toxicological data taking into account the exposure situation need to be provided for all new and existing substances that require registration. For inhalable substances, this requirement can be met only by means of extensive and laborious inhalation toxicological tests, which cannot be accomplished with traditional methods in the foreseeable future. The REACH programme though asks for animal experiments to be avoided as far as possible and, in addition to the sharing of test and experimental data, stipulates the use of alternative testing methods, which, however, are as yet not available in the field of inhalation toxicology. The aim of this project, therefore, is a reduction of animal experiments in the cyto- and genotoxicity assessment of inhalable industrial chemicals by providing an established in vitro method which, in accordance with the in vivo situation, guarantees a standardised direct exposure of human Jung cells (cell line A549) to a native test gas. In view of the risk assessment, investigations using cells from the human respiratory tract are generally favoured in this context. Based on the data material obtained and taking into account existing data from animal experiments (literature data), analyses will be performed regarding the relation between in vitro and in vivo studies and a prediction model (PM) will be developed. In a second phase, the results of this study, which is based on the prevalidation concept of ECVAM, are to be validated according to the scientific requirements of the OECD. A separate application for funding (2 years) will be submitted for this second phase.
https://ufordat.uba.de/UFORDAT/pages/PublicRedirect.aspx?TYP=PR&DSNR=1022336
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