Publications by authors named "Alexandra H Springwald"

Article Synopsis
  • The study explores how loading siRNA into gelatin microparticles (cGM) can enhance targeted therapies for bone health.
  • The researchers combined these siRNA-loaded cGM with human mesenchymal stem cells (hMSC) to create microtissues, leading to increased alkaline phosphatase activity after silencing chordin, which inhibits bone formation.
  • The microtissues showed improved bone-related activity in a co-culture model with blood cells, suggesting they could potentially promote bone growth and maintain bone health.
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The aim of this study was the evaluation of cross-linked gelatin microparticles (cGM) as substrates for osteogenic cell culture to assemble 3D microtissues and their use as delivery system for siRNA to cells in these assemblies. In a 2D transwell cultivation system, we found that cGM are capable to accumulate calcium ions from the surrounding medium. Such a separation of cGM and SaOS-2 ​cells consequently led to a suppressed matrix mineral formation in the SaOS-2 culture on the well bottom of the transwell system.

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Toward the next generation of nerve guidance conduits (NGCs), novel biomaterials and functionalization concepts are required to address clinical demands in peripheral nerve regeneration (PNR). As a biological polymer with bioactive motifs, gelatinous peptides are promising building blocks. In combination with an anhydride-containing oligomer, a dual-component hydrogel system (cGEL) was established.

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