Institute for Biological Interfaces of Engineering

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  • [Three dimensional bioprinting technology of human dental pulp cells mixtures]
    Fri, 12 Sep 2014 08:43:55 EST
  • OBJECTIVE: To explore the three dimensional(3D)bioprinting technology, using human dental pulp cells (hDPCs) mixture as bioink and to lay initial foundations for the application of the 3D bioprinting technology in tooth regeneration. METHODS: Imageware 11.0 computer software was used to aid the design of the 3D biological printing blueprint. Sodium alginate-gelatin hydrosol was prepared and mixed with in vitro isolated hDPCs. The mixture contained 20 g/L sodium alginate and 80 g/L gelatin with c...

  • Microfluidics-based laser cell-micropatterning system
    Fri, 12 Sep 2014 08:43:55 EST
  • The ability to place individual cells into an engineered microenvironment in a cell-culture model is critical for the study of in vivo relevant cell-cell and cell-extracellular matrix interactions. Microfluidics provides a high-throughput modality to inject various cell types into a microenvironment. Laser guided systems provide the high spatial and temporal resolution necessary for single-cell micropatterning. Combining these two techniques, the authors designed, constructed, tested and evaluat...

  • Organoid Cultures Derived from Patients with Advanced Prostate Cancer
    Fri, 12 Sep 2014 08:43:54 EST
  • The lack of in vitro prostate cancer models that recapitulate the diversity of human prostate cancer has hampered progress in understanding disease pathogenesis and therapy response. Using a 3D organoid system, we report success in long-term culture of prostate cancer from biopsy specimens and circulating tumor cells. The first seven fully characterized organoid lines recapitulate the molecular diversity of prostate cancer subtypes, including TMPRSS2-ERG fusion, SPOP mutation, SPINK1 overexpress...

  • Folate-Targeted Multifunctional Amino Acid-Chitosan Nanoparticles for Improved Cancer Therapy
    Fri, 12 Sep 2014 08:43:54 EST
  • PURPOSE: Tumor targeting nanomaterials have potential for improving the efficiency of anti-tumoral therapeutics. However, the evaluation of their biological performance remains highly challenging. In this study we describe the synthesis of multifunctional nanoparticles decorated with folic acid-PEG and dual amino acid-modified chitosan (CM-PFA) complexed with DNA and their evaluation in organotypic 2D co-cultures of cancer-normal cells and also on 3D multicellular tumor spheroids models. METHODS...

  • The Influence of IL-10 and TNFalpha on Chondrogenesis of Human Mesenchymal Stromal Cells in Three-Dimensional Cultures
    Fri, 12 Sep 2014 08:43:53 EST
  • Chondrogenic differentiated mesenchymal stromal cells (MSCs) are a promising cell source for articular cartilage repair. This study was undertaken to determine the effectiveness of two three-dimensional (3D) culture systems for chondrogenic MSC differentiation in comparison to primary chondrocytes and to assess the effect of Interleukin (IL)-10 and Tumor Necrosis Factor (TNF)alpha on chondrogenesis by MSCs in 3D high-density (H-D) culture. MSCs were isolated from femur spongiosa, characterized u...

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