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  1. Article

    Open Access

    NHC-gold compounds mediate immune suppression through induction of AHR-TGFβ1 signalling in vitro and in scurfy mice

    Gold compounds have a long history of use as immunosuppressants, but their precise mechanism of action is not completely understood. Using our recently developed liver-on-a-chip platform we now show that gold ...

    **nlai Cheng, Stefanie Haeberle, Iart Luca Shytaj in Communications Biology (2020)

  2. Article

    Open Access

    In vitro metabolic activation of vitamin D3 by using a multi-compartment microfluidic liver-kidney organ on chip platform

    Organ-on-chip platforms provide models that allow the representation of human physiological processes in cell-based miniaturized systems. Potential pre-clinical applications include drug testing and toxicity s...

    Jannick Theobald, Mohamed A. Abu el Maaty, Nico Kusterer in Scientific Reports (2019)

  3. Article

    Open Access

    Golgi stress mediates redox imbalance and ferroptosis in human cells

    Cytotoxic activities of several Golgi-dispersing compounds including AMF-26/M-COPA, brefeldin A and golgicide A have previously been shown to induce autophagy or apoptosis. Here, we demonstrate that these Golg...

    Hamed Alborzinia, Tatiana I. Ignashkova, Francesca R. Dejure in Communications Biology (2018)

  4. Article

    Open Access

    Activation of pro-survival metabolic networks by 1,25(OH)2D3 does not hamper the sensitivity of breast cancer cells to chemotherapeutics

    We have previously identified 1,25-dihydroxyvitamin D3 [1,25(OH)2D3], the bioactive form of vitamin D3, as a potent regulator of energy-utilization and nutrient-sensing pathways in prostate cancer cells. In the c...

    Mohamed A. Abu el Maaty, Yasamin Dabiri, Fadi Almouhanna in Cancer & Metabolism (2018)

  5. No Access

    Article

    Monitoring cytochrome P450 activity in living hepatocytes by chromogenic substrates in response to drug treatment or during cell maturation

    The metabolic activity of hepatocytes is a central prerequisite for drug activity and a key element in drug–drug interaction. This central role in metabolism largely depends on the activity of the cytochrome P...

    Jannick Theobald, **nlai Cheng, Ali Ghanem, Haristi Gaitantzi in Archives of Toxicology (2018)

  6. No Access

    Article

    Porous self-protonating spiropyran-based NIPAAm gels with improved reswelling kinetics

    This study focuses on improving the speed of actuation of poly(N-isopropylacrylamide)-based photoresponsive gels containing copolymerised spiropyran as the photoswitch and acrylic acid as the proton source. The i...

    Bartosz Ziółkowski, Larisa Florea, Jannick Theobald in Journal of Materials Science (2016)