Advanced in vitro exposure systems.

11. Mar. 2018

New Products at VITROCELL® User Group Meeting 2018

10 March 2018, Grand Hyatt San Antonio, Texas, USA

Following the VITROCELL® User Group Meeting 2017 in Baltimore, international scientists from Canada, Europe, Japan and USA reconvened in March 2018.

The informal event organized into short presentations and posters was followed by open discussions. It was an excellent opportunity to discuss the latest developments of VITROCELL®, to exchange your experience in working with the equipment and to meet other fellow researchers. The meeting took place prior to the international Society of Toxicology 57th Annual Meeting and ToxExpo, March 11 – 15, 2018, in San Antonio, USA - one of the largest international conferences related to toxicology.

Focus of the event was to share VITROCELL® activities since the last meeting, to exchange latest research results, to give an update on VITROCELL’s participation in major research programs as well as the presentation of new products for 2018.

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12. Jun. 2019

Molecular Signature of Asthma-Enhanced Sensitivity to CuO Nanoparticle Aerosols from 3D Cell Model

DOI: 10.1021/acsnano.9b01823

Ingeborg Kooter1, Marit Ilves 2, Mariska Gröllers-Mulderij 1, Evert Duistermaat 3, Peter C. Tromp 1, Frieke Kuper 1, Pia Kinaret 4,5, Kai Savolainen 6, Dario Greco 4,5, Piia Karisola 2, Joseph Ndika 2, and Harri Alenius 2,7

1The Netherlands Organization for Applied Scientific Research, TNO, P.O. Box 80015, Utrecht 3584 CB, The Netherlands
2Human Microbiome Research, Faculty of Medicine, University of Helsinki, P.O. Box 21, Helsinki 00290, Finland
3Triskelion B.V., P.O. Box 844, Zeist 3704 HE, The Netherlands
4Faculty of Medicine and Life Sciences, University of Tampere, Tampere FI-33014, Finland
5Institute of Biotechnology, University of Helsinki, P.O. Box 56, Helsinki 00014, Finland
6Finnish Institute of Occupational Health, P.O. Box 40, Helsinki 00014, Finland
7Institute of Environmental Medicine, Karolinska Institutet, P.O. Box 210, Stockholm SE-17176, Sweden

3D human bronchial epithelial cells were cultured at the air−liquid interface that mimics relevant inhalatory exposure were exposed to aerosols of pristine (nCuO) and carboxylated (nCuOCOOH) copper oxide nanoparticles. This paper shows that the existence of asthma enhances sensitivity of the airways to nanoparticle aerosols, possibly as a combined result of a hyperactive airway and inefficient mucociliary clearance mechanisms in asthmatics. The test results are shown in cell viabilty (LDH), Inflammation (IL6, IL8, MCP1) and Transcroptomics.

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6. Jun. 2019

12th International Particle Toxicology Conference (IPTC 2019)

September 11–13, 2019. Salzburg, Austria

The IPTC series of conferences brings together experts on particle toxicology. The audience is worldwide and all types of particles are considered. The conference covers basic research issues, but has a strong focus on applications of particle toxicology, which are in work place safety, environmental safety, consumer safety, medical and diagnostic developments and other fields.

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Categories: Exhibitions

Tags: congress

29. May. 2019

55th Congress of the European Societies of Toxicology (EUROTOX)

September 8–11, 2019. Helsinki, Finland

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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Categories: Exhibitions

Tags: congress

27. May. 2019

Characterization of the Vitrocell® Cloud SEQ 24 System and its Application in Exposure to Aerosolized Bortezomib and Ibuprofen

S. Steiner1, Sandra Ferreira1, Moran Morelli1, Audrey Baldi1, Arkadiusz K. Kuczaj1, Stefan Frentzel1, Marco van der Toorn1, Manuel Peitsch1, Julia Hoeng1
1 PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland

This poster shows the investigation how aerosols are delivered within the Cloud SEQ 24 and how cell cultures respond to exposures in the system. Ibuprofen and Bortezomib was exposed to three dimensional organotypic tissue cultures of the human bronchial epithelium and biological endpoints were measured: Cytotoxicity, Interleukin 8 and Proteasome activity.

 

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25. May. 2019

In vitro model for the prediction of respiratory sensitization of inhaled chemicals and protein allergens

ISAM, Montreux, 25 – 29 May 2019

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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Categories: Publications

Tags: VITROCELL Cloud

29. Apr. 2019

ISAM-Congress

May 25–29, 2019. Montreux, Switzerland

The congress will bring together about 400 international attendees at one of the largest pulmonary drug delivery and respiratory health conferences.

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Categories: Exhibitions

Tags: congress

29. Apr. 2019

IEHB Conference

May 10-12, 2019. Nanjing, China

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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Categories: Exhibitions

Tags: congress

5. Apr. 2019

Assessing the respiratory toxicity of dihydroxyacetone using an in vitro human airway epithelial tissue model

https://doi.org/10.1016/j.tiv.2019.04.007
Yiying Wanga, Qiangen Wub, Levan Muskhelishvilic, Kelly Davisc, Matthew Bryantb, Xuefei Caoa
a Division of Genetic and Molecular Toxicology, National Center for Toxicological Research, Jefferson, AR 72079, United States of America
b Division of Biochemistry Toxicology, National Center for Toxicological Research, Jefferson, AR 72079, United States of America
c Toxicologic Pathology Associates, Jefferson, AR 72079, United States of America

Unintentional exposure of respiratory mucosal surfaces to DHA aerosols is highly possible during sunless tanning sessions, a possibility for which it is not approved. In this study, the potential respiratory toxicity of DHA using the ALI airway tissue model is evaluated. To mimic in vivo exposure conditions, a liquid aerosol generation and exposure system was used and exposed ALI cultures to a range of non-cytotoxic doses of DHA aerosols at the air-liquid interface.


 

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22. Mar. 2019

In vitro toxicological evaluation of emissions from catalytic oxidation removal of industrial VOCs by air/liquid interface (ALI) exposure system in repeated mode.

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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