13.11.2019

Expansion and differentiation of human hepatocyte-derived liver progen... Cell Research 29, 2019

What is it that makes stem cells such an attractive option for drug discovery studies? One of the main reasons is that they make a much better model of human disease and drug reactions than animal models. The development of an in vitro experimental setting to generate human liver progenitors either from hepatocytes or from cholangiocytes will be of great importance. Fu et al. report an approach for efficient expansion and differentiation of human hepatocyte-derived liver progenitor-like cells in vitro that relies on active SIRT...

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12.11.2019

Saporin-conjugated tetramers identify efficacious anti-HIV CD8+ T-cell... PLoS One, 2017

Abstract Antigen-specific T-cells are highly variable, spanning potent antiviral efficacy and damaging auto-reactivity. In virus infections, identifying the most efficacious responses is critical to vaccine design. However, current methods depend on indirect measures or on ex vivo expanded CTL clones. We here describe a novel application of cytotoxic saporin-conjugated tetramers to kill antigen-specific T-cells without significant off-target effects. The relative efficacy of distinct antiviral C...

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08.11.2019

Structural determination of the large photosystem II–light-harvesting... The Journal of Biological Chemistry 294, 2019

Abstract In photosynthetic organisms, photosystem II (PSII) is a large membrane protein complex, consisting of a pair of core complexes surrounded by an array of variable numbers of light-harvesting complex (LHC) II proteins. Previously reported structures of the PSII–LHCII supercomplex of the green alga Chlamydomonas reinhardtii exhibit significant structural heterogeneity, but recently improved purification methods employing ionic amphipol A8-35 have enhanced supercomplex stability, providing opportunities for dete...

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