@article{TylekSchillingSchlegelmilchetal.2019,
  author    = {Tylek, Tina and Schilling, Tatjana and Schlegelmilch, Katrin and Ries, Maximilian and Rudert, Maximilian and Jakob, Franz and Groll, J{\"u}rgen},
  title     = {Platelet lysate outperforms FCS and human serum for co-culture of primary human macrophages and hMSCs},
  series = {Scientific Reports},
  volume    = {9},
  journal   = {Scientific Reports},
  doi       = {10.1038/s41598-019-40190-9},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-229174},
  year      = {2019},
  abstract  = {In vitro co-cultures of different primary human cell types are pivotal for the testing and evaluation of biomaterials under conditions that are closer to the human in vivo situation. Especially co-cultures of macrophages and mesenchymal stem cells (MSCs) are of interest, as they are both present and involved in tissue regeneration and inflammatory reactions and play crucial roles in the immediate inflammatory reactions and the onset of regenerative processes, thus reflecting the decisive early phase of biomaterial contact with the host. A co-culture system of these cell types might thus allow for the assessment of the biocompatibility of biomaterials. The establishment of such a co-culture is challenging due to the different in vitro cell culture conditions. For human macrophages, medium is usually supplemented with human serum (hS), whereas hMSC culture is mostly performed using fetal calf serum (FCS), and these conditions are disadvantageous for the respective other cell type. We demonstrate that human platelet lysate (hPL) can replace hS in macrophage cultivation and appears to be the best option for co-cultivation of human macrophages with hMSCs. In contrast to FCS and hS, hPL maintained the phenotype of both cell types, comparable to that of their respective standard culture serum, as well as the percentage of each cell population. Moreover, the expression profile and phagocytosis activity of macrophages was similar to hS.},
  language  = {en}
}
@article{HochleitnerJuengstBrownetal.2015,
  author    = {Hochleitner, Gernot and J{\"u}ngst, Tomasz and Brown, Toby D and Hahn, Kathrin and Moseke, Claus and Jakob, Franz and Dalton, Paul D and Groll, J{\"u}rgen},
  title     = {Additive manufacturing of scaffolds with sub-micron filaments via melt electrospinning writing},
  series = {Biofabrication},
  volume    = {7},
  journal   = {Biofabrication},
  number    = {3},
  doi       = {10.1088/1758-5090/7/3/035002},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-254053},
  year      = {2015},
  abstract  = {The aim of this study was to explore the lower resolution limits of an electrohydrodynamic process combined with direct writing technology of polymer melts. Termed melt electrospinning writing, filaments are deposited layer-by-layer to produce discrete three-dimensional scaffolds for in vitro research. Through optimization of the parameters (flow rate, spinneret diameter, voltage, collector distance) for poly-ϵ-caprolactone, we could direct-write coherent scaffolds with ultrafine filaments, the smallest being 817 ± 165 nm. These low diameter filaments were deposited to form box-structures with a periodicity of 100.6 ± 5.1 μm and a height of 80 μm (50 stacked filaments; 100 overlap at intersections). We also observed oriented crystalline regions within such ultrafine filaments after annealing at 55 °C. The scaffolds were printed upon NCO-sP(EO-stat-PO)-coated glass slide surfaces and withstood frequent liquid exchanges with negligible scaffold detachment for at least 10 days in vitro.},
  language  = {en}
}