Advanced in vitro exposure systems.

28. Mar. 2018

Characterization of a Vitrocell VC1 Using Nicotine Dosimetry: An Essential Component Toward Standardized In Vitro Aerosol Exposure of Tobacco and Next Generation Nicotine Delivery Products

DOI: 10.1089/aivt.2018.0001
Holger Behrsing,1 Mario Aragon,1 Jason Adamson,2 Devin Sheehan,1 Marianna Gaca,2 Rodger Curren,1 and Erin Hill1
1Respiratory Toxicology, Institute for In Vitro Sciences, Inc., Gaithersburg, Maryland.
2R&D, British American Tobacco, Southampton, United Kingdom.

The study shows an assessment of VC1 aerosol generation that was conducted by measuring puff-by-puff in vitro nicotine concentration of 3R4F cigarettes (ISO and HCI regimes), e-cigarette (CRM81 puffing profile), and THP (HCIm regime). The aerosols were applied to in vitro or ex vivo cellular and tissue systems that model the respiratory tract, such as reconstructed human airways (RHuA), which are grown at the air–liquid interface (ALI). Additionally a comparison between the Vitrocell VC1 (U.S. Laboratory) and the VC10 (UK Laboratory) Smoking Robot was done.

 

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11. Mar. 2018

A setup to test toxicity of alcohol inhalation from consumer products

User Group Meeting 2018

Dr. Monique Manche1, Dr. Fabrice Nesslany2, Tobias Krebs3
1Laboratoires Anios, 59260 Lille-Hellemmes, France
2Laboratoire de toxicologie génétique, Institut Pasteur de Lille, 59000 Lille, France
3VITROCELL Systems GmbH, 79183 Waldkirch, Germany

 

Genotoxicity tests (in vitro micronucleus test and comet assay) have been conducted on p53 competent pulmonary cells, with alcohol administration as vapours to obtain data under conditions more representative of actual exposure conditions via the pulmonary route.

 

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11. Mar. 2018

VITROCELL® Cloud MAX

User Group Meeting 2018

Patrick Weindl1, Dr. Otmar Schmid2,

1VITROCELL Systems GmbH, 79183 Waldkirch, Germany
2Helmholtz Center Munich, Germany

The poster shows the design for smallest nebulization volumes and high deposition efficiency.

 

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11. Mar. 2018

Update: Deposition Enhancement via Thermophoresis

User Group Meeting 2018

Dr. Dirk Brossell

Federal Institute for Occupational Safety and Health (BAuA), Unit 4.5, 10317 Berlin, Germany

The poster demonstrates the particle deposition via thermal precipitation (particle precipitation by thermophoresis) on cells hosted at the air-liquid interface (ALI).
Advantages of thermophoresis
• Diffusion-like mechanism, gentle particle deposition 
• Independent from particle size (for nanoparticles)
• Homogenous deposition density profile 
• No need to manipulate aerosol properties for deposition (charge, size)

 

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11. Mar. 2018

Characterization of a Vitrocell VC1 Using Nicotine Dosimetry: An Essential Component Towards Standardised In Vitro Aerosol Exposure of Tobacco and Next Generation Nicotine Delivery Products

IIVS at SOT 2018

D. Sheehan1, M. Aragon1, J. Adamson2, M. Gaca2, H. Raabe1, and H. Behrsing1.
1Institute for In Vitro Sciences, Inc., Gaithersburg, MD; and 2British American Tobacco, Southampton, United Kingdom.

This study demonstrates successful Vitrocell VC1 aerosol generation and delivery across multiple nicotine product categories (3R4F cigarette smoke, e-liquid and THP), as characterised using nicotine as a dosimetry marker. The data suggests the VC1 can reproducibly generate and deliver tobacco product and NGP aerosols for future in vitro assessment and matches the performance of reported exposure systems.

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11. Mar. 2018

VITROCELL® 6/48: Changeover set for 24-well sized inserts

User Group Meeting 2018

Tobias Krebs

VITROCELL Systems GmbH, 79183 Waldkirch, Germany 

 

The poster shows the VITROCEL® 48 exposure system with a 6- and a 24-well setup.

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11. Mar. 2018

VITROCELL® Powder Chamber

User Group Meeting 2018

Katharina Knoth1, Marius Hittinger1, Tobias Krebs2

1PharmBioTec GmbH, Science Park 1, 66123 Saarbrücken, Germany  

2VITROCELL Systems GmbH, 79183 Waldkirch, Germany

The poster shows two customer examples for exposures to smallest quantities of dry powders.

 

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11. Mar. 2018

VITROCELL® Cloud SEQ

User Group Meeting 2018

Patrick Weindl, Oliver Wisser

VITROCELL Systems GmbH, 79183 Waldkirch, Germany

The VITROCELL® Cloud SEQ represents another evolution of the well-known Cloud systems. Keeping functional process parameters according to established devices like the VITROCELL® Cloud 6, 12 or 24 it is meant to enhance those devices even further. lt offers the possibility to sequentially expose rows of inserts to create dose-response curves while keeping the concentration of nebulized liquid at the same level and the cell-cultures under highly comparable conditions.


 

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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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11. Mar. 2018

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

User Group Meeting 2018

Chary A.1,2, 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 Department of Environmental Research and Innovation, 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.

Aim
- Adapt a 3D-coculture system previously developed by us (Klein et al. 2013) allowing the study of respiratory sensitization processes by including dendritic cells, which have a crucial role in sensitization
- Find markers for the assessment of the respiratory sensitizing potential of inhaled compounds by measuring the activation of DCs as well as the release of cytokines

 

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