The congress will offer a change to tackle with the burning chemical safety challenges of the next decade. The theme of the Congress is “Toxicology – Science Providing Solutions”.

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Weber P. ¹, Chary A.^1,2, Saibene M. ¹, Serchi T.1, Cambier S.¹ , Moschini E.¹, Contal S.¹, Hennen J.², Ezendam J.³, Blömeke B.², Gutleb A.C.^1
1 Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), Luxembourg. 
² Department of Environmental Toxicology, Trier University, Germany.
³Centre for Environmental Protection, National Institute for Public Health and the Environment (RIVM), The Netherlands.

The Aim of this study is the adaptation of a 3D-co-culture system previously developed by Klein et al.2013. Inclusion of dendritic cells to study respiratory sensitization processes and identification and evaluation of markers to assess the respiratory sensitizing potential of inhaled compounds.

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This conference will provide a great platform to communicate with academic experts, industrial leaders, media giants, and regulation officials. Please join us in Nanjing for better indoor environemnt!

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DOI: 10.1016/j.tiv.2019.03.030
Méausoone C¹, El Khawaja R¹, Tremolet G¹, Siffert S¹, Cousin R¹, Cazier F², Billet S¹, Courcot D³, Landkocz Y¹.
¹ UCEIV - EA4492, Unité de Chimie Environnementale et Interactions sur le Vivant, SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, Dunkerque, France.
² Centre Commun de Mesure, Université du Littoral Côte d'Opale, Dunkerque, France.
³ UCEIV - EA4492, Unité de Chimie Environnementale et Interactions sur le Vivant, SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, Dunkerque, France.. Electronic address: dominique.courcot@univ-littoral.fr.

BEAS-2B cells were exposed using an Air-Liquid Interface (ALI) System (Vitrocell®) to gaseous flows of toluene vapors and outflow after catalytic oxidation of toluene. After exposure to gaseous flow, cytotoxicity, inflammatory response and Xenobiotic Metabolism Enzymes (XME) gene expression were investigated.

Highlights
• Toxicity of toluene increases with time when cells are repeatedly exposed.
• Toxicological analysis helps for validation of catalysts used in treatment of VOCs.
• Cellular response supports the identification of chemically undetected by-products.

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Anita R. Iskandar, Filippo Zanetti, Athanasios Kondylis, Florian Martin, Alain Sewer, Laura Ortega Torres, Shoaib Majeed, Sandro Steiner, Emmanuel Guedj, Celine Merg, Thomas Schneider, Keyur Trivedi, Stefan Frentzel, Nikolai V. Ivanov, Manuel C. Peitsch, Julia Hoeng

PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland

The impacts of an acute exposure to cigarette smoke (CS) and to aerosol from a novel electronic cigarette (EC) device using MESH™ technology were assessed using human organotypic buccal epithelial cultures and small airway epithelial cultures. A paired design was implemented: in parallel to the exposure to CS or EC aerosol, cultures were also exposed to air in the same exposure module. Tissue damage was not seen in cultures exposed to the IQOS MESH™ Classic Tobacco aerosol despite resulting in greater concentrations of deposited nicotine. In buccal cultures, CS and IQOS MESH™ Classic Tobacco aerosol elicited different infammatory response.

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