https://doi.org/10.1007/s00204-019-02565-9

Anita R. Iskandar, Filippo Zanetti, Diego Marescotti, Bjorn Titz, Alain Sewer, Athanasios Kondylis, Patrice Leroy, Vincenzo Belcastro, Laura Ortega Torres, Stefano Acali, Shoaib Majeed, Sandro Steiner, Keyur Trivedi, Emmanuel Guedj, Celine Merg, Thomas Schneider, Stefan Frentzel, Florian Martin, Nikolai V. Ivanov, Manuel C. Peitsch, Julia Hoeng

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

Previous experimental setups shows the effects of e-liquids on cell viability (first layer), followed by investigating the potential mechanisms of toxicity elicited by e-liquids (second layer) and finally assessing the impacts of aerosols (third layer). In this present work shows how the three-layer framework is leveraged to evaluate the potential toxicity and biological effects of the MESH Classic Tobacco and Base e-liquids/aerosols compared with those of 3R4F CS.

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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 <sup>2,7

1</sup>The 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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DOI:10.1007/s11739-019-02055-x
Filippo Zanetti¹, Athanasios Kondylis¹, Florian Martin¹, Patrice Leroy¹, Shoaib Majeed¹, Sandro Steiner¹, Yang Xiang¹, Laura Ortega Torres¹, Keyur Trivedi¹, Emmanuel Guedj¹, Celine Merg¹, Stefan Frentzel1, Nikolai V. Ivanov¹, Utkarsh Doshi², Kyeonghee Monica Lee², Willie J. McKinneyJr², Manuel C. Peitsch¹, Julia Hoeng¹

¹ Philip Morris International R&D, Philip Morris Products S.A.NeuchâtelSwitzerland
² Altria Client Services LLCRichmondUSA

Human organotypic buccal and small airway cultures were exposed in two independent exposure systems (Vitrocell® 24/48), one for 3R4F reference cigarette smoke and the other for e-cigarette aerosol exposures to summarize the exposure-induced impacts into four main cellular processes: the cell fate, cell proliferation, cell stress, and inflammatory process.

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Autoren:
Hillemann, L.; Stintz, M.; Streibel, T.; Zimmermann, R.; Öder, S.; Kasurinen, S.; di Bucchianico, S.; Kanashova, T.; Dittmar, G.; Konzack, D.; Große, S.; Rudolph, A.; Berger, M.; Krebs, T.; Saraji-Bozorgzad, M. R.; Walte, A.

Die Wirkung von Emissionen aus dem Trennen von Carbonbeton werden in einer Kombination aus Trennstaubgenerator, Verdünnungssystem und Expositionssystem an Zellkulturen (A549 und THP-1) gegenüber den entstehenden Stäuben bestimmt (Zytotoxizität).

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https://doi.org/10.3390/pharmaceutics10020056 

Julia Metz ^1,2, Katharina Knoth ¹, Henrik Groß ¹, Claus-Michael Lehr ^1,2,3, Carolin Stäbler ⁴, Udo Bock ⁵, and Marius Hittinger ^1
1Department of Drug Delivery, PharmBioTec GmbH, 66123 Saarbrücken, Germany
²Department of Biopharmaceutics and Pharmaceutical Technology, Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
³Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), 66123 Saarbrücken, Germany
⁴Department of Scientific Affairs Consumer Health, Bayer Vital GmbH, 51368 Leverkusen, Germany
⁵Bock Project Management, 54456 Tawern, Germany

In this study two innovative in vitro techniques were combined: The Vitrocell® Powder Chamber and the human cell based MucilAir™ system. Their combined use allows the investigation of the effect of aerosolized pollen and appropriate drugs on a human mucosal tissue, a similar scenario finding in humans. The release of pro-inflammatory cytokines (IL-6, IL-8, and TNF-α) was quantified as an initial cellular response to pollen contact and to confirm the protective effect of drugs.

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