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. 2020 May 14;120(19):11032–11092. doi: 10.1021/acs.chemrev.9b00789

Table 10. Bioprinting of Pancreatic Islets Implants.

tissue cells composition structure mechanical properties method sequence comments ref
islets (transplant scaffold carrier) β-cell line and human islets alginate, gelatin, HA, matrigel layered 0/90 pattern n/a plunger-driven printing (plotting) cells were mixed with hydrogels and post-cross-linked with different concentrations of CaCl2 for 15–30 min in vitro culture post bioprinting during 14 days; abdominal and subcutaneous implantated in vivo during 7 days (498)
islets (transplant scaffold carrier) primary islets (rat) alginate with (MC) square 9 × 9 mm, strand distance 3 mm, 4 layers, 0/90 n/a pressure-assisted extrusion islets were mixed with alginate/MC, bioprinted, and cross-linked with strontium chloride (SrCl2) an average of 20% of the apoptic cells were observed in the plotted contructs with small variations during 7 days of in vitro culture (500)
islets (transplant scaffold carrier) primary islets (mouse), bone marrow derived endothelial progenitor cells (EPC, mouse) or ECs (MS1, CRL-2279), blood isolated T cells (human) GelMA and alginate blends single-layer 0/90 pattern n/a plunger extrusion-based core: islets with hydrogel blends; shell: EPC with hydrogel blend; constructs were printed and cross-linked with UV during and after printing followed by CaCl2 (10 min) bioprinted constructs cultured for up to 3 days; cell -ree disks implanted subcutaneously for 21 days (502)
pancreatic tumor model human tumor- derived cancer, stellate and ECs alginate-based layered n/a extrusion-based stromal bioink 200 M cells/mL (75% stellate cells + 25% HUVECs); tumor bioink 150 to 300 M cells/mL (75% tumor cells + 25% HUVECs); bioprinting; cross-linking with CaCl2 in vitro and in vivo subcutaneous implantation in immunodeficient mice (503)