{
  "id": 8318449,
  "title": "Bridging scale-up to transplantation: pluripotent stem cell-derived pancreatic islet encapsulation in emulsion-generated high concentration alginate beads",
  "url": "https://urgent.news/2026/09/18/bridging-scale-up-to-transplantation-pluripotent-stem-cell-derived",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-18T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.12.751148v1?rss=1"
  },
  "original_language": "en",
  "account": "The research focuses on developing a method for biomanufacturing pancreatic islet-like cell clusters (SC-islets) derived from pluripotent stem cells. These SC-islets hold promise as a cellular therapy for type 1 diabetes. However, producing them in bioreactors to meet the demand for transplantation is fraught with challenges.\n\nA significant hurdle is the potential for hydrodynamic damage and cellular agglomeration during scale-up when cultured in suspension. To address this, the researchers previously devised an emulsion-based process to encapsulate murine pancreatic beta cells in high-concentration alginate beads, which enhanced graft survival in allogeneic recipients.\n\nIn this study, the team presents a comprehensive pipeline for scaling up the microencapsulation of SC-islets. They aimed to demonstrate that this encapsulation would prevent cellular agglomeration, lessen mechanical stress, and preserve the differentiation potential of the cells throughout the scale-up process. Their hypothesis was supported by the results.\n\nWhen Stage 6 SC-islets were encapsulated, it effectively prevented cellular agglomeration during extended suspension culture lasting 25 days. The encapsulated cells also showed a higher cell recovery rate of 91% plus or minus 3% compared to the non-encapsulated aggregates with 60% plus or minus 10%. Importantly, no significant differences were observed in glucose-stimulated insulin secretion between encapsulated and non-encapsulated cells.\n\nThe researchers then matured Stage 7 SC-islets in the bioreactor and transplanted them either as encapsulated islets via the intraperitoneal route or as free SC-islets under the kidney capsule. Both transplantation routes resulted in glucose-responsive human C-peptide secretion and maintained functional status in vivo for up to 98 days.\n\nThe study effectively establishes a scalable and robust encapsulation platform that supports SC-islet maturation and transplantation, providing a generalizable strategy for scaling up and transplanting encapsulated organoid systems.",
  "summary": "Pluripotent stem cell-derived pancreatic islet-like cell clusters (SC-islets) have emerged as potential cellular therapy for type 1 diabetes. While SC-islets can theoretically be produced in bioreactors to meet transplantation needs of many recipients per batch, biomanufacturing and translational challenges remain. SC-islet can be cultured in suspension using stirred tank or vertical wheel…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}