Cited by 399Pancreatic function and diabetesTissue Engineering and Regenerative MedicineHydrogels: synthesis, properties, applications

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Preventing hypoxia-induced cell death in beta cells and islets via hydrolytically activated, oxygen-generating biomaterials

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Pedraza, Eileen, Coronel, Maria M., Fraker, Christopher A., Ricordi, Camillo, Stabler, Cherie L.·2012·Proceedings of the National Academy of Sciences

Abstract

A major hindrance in engineering tissues containing highly metabolically active cells is the insufficient oxygenation of these implants, which results in dying or dysfunctional cells in portions of the graft. The development of methods to increase oxygen availability within tissue-engineered implants, particularly during the early engraftment period, would serve to allay hypoxia-induced cell death. Herein, we designed and developed a hydrolytically activated oxygen-generating biomaterial in the form of polydimethylsiloxane (PDMS)-encapsulated solid calcium peroxide, PDMS-CaO 2 . Encapsulation of solid peroxide within hydrophobic PDMS resulted in sustained oxygen generation, whereby a single disk generated oxygen for more than 6 wk at an average rate of 0.026 mM per day. The ability of this oxygen-generating material to support cell survival was evaluated using a β cell line and pancreatic rat islets. The presence of a single PDMS-CaO 2 disk eliminated hypoxia-induced cell dysfunction and death for both cell types, resulting in metabolic function and glucose-dependent insulin secretion comparable to that in normoxic controls. A single PDMS-CaO 2 disk also sustained enhanced β cell proliferation for more than 3 wk under hypoxic culture conditions. Incorporation of these materials within 3D constructs illustrated the benefits of these materials to prevent the development of detrimental oxygen gradients within large implants. Mathematical simulations permitted accurate prediction of oxygen gradients within 3D constructs and highlighted conditions under which supplementation of oxygen tension would serve to benefit cellular viability. Given the generality of this platform, the translation of these materials to other cell-based implants, as well as ischemic tissues in general, is envisioned.

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  1. 10.1002/med.20047 · DOI
  2. 10.1126/science.1147949 · DOI
  3. 10.1073/pnas.0507681102 · DOI
  4. 10.1096/fasebj.2.2.3342967 · DOI
  5. 10.1074/jbc.M110.194738 · DOI
  6. 10.2337/diab.42.1.12 · DOI
  7. 10.1007/s00268-006-0719-8 · DOI
  8. 10.1111/j.1600-6143.2006.01541.x · DOI
  9. 10.1097/01.tp.0000203858.41105.88 · DOI
  10. 10.1096/fj.02-1041fje · DOI
  11. 10.1161/01.RES.0000126411.29641.08 · DOI
  12. 10.1007/BF00505826 · DOI
  13. 10.1016/j.biomaterials.2007.07.003 · DOI
  14. 10.1016/j.biomaterials.2008.09.065 · DOI
  15. 10.1089/ten.2006.12.337 · DOI · Paper page
  16. 10.1055/s-0030-1267916 · DOI
  17. 10.1111/j.1749-6632.1999.tb08497.x · DOI
  18. 10.1016/j.jhazmat.2007.07.096 · DOI
  19. 10.2337/diab.46.11.1733 · DOI
  20. 10.1016/0376-7388(95)00229-4 · DOI
  21. 10.1111/j.1749-6632.1968.tb20277.x · DOI
  22. 10.1016/S0142-9612(00)00282-9 · DOI
  23. A Colas, J Curtis, Medical applications of silicones. Biomaterials Science, An Introduction to Materials in Medicine, eds B Ratner, A Hoffman, F Schoen, J Lemons (Elsevier, 2nd Ed, Burlington, MA), pp. 697–707 (2004).

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Metadata

Authors
Pedraza, E., Coronel, M. M., Fraker, C. A., Ricordi, C., & Stabler, C. L.
Affiliations
  • University of Miami (US)
  • Diabetes Research Institute and
Venue
Proceedings of the National Academy of Sciences
Published
2012-02-27
Volume
109
Issue
11
Pages
4245-4250
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2109949410
Cited by
399
References
27
Citations by year
2026: 15 · 2025: 21 · 2024: 27 · 2023: 44 · 2022: 25 · 2021: 48 · 2020: 33 · 2019: 38 · 2018: 30 · 2017: 34 · 2016: 26 · 2015: 12 · 2014: 19 · 2013: 25 · 2012: 2
FWCI
18.89
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Defense
  • Diabetes Research Institute Foundation
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DP2DK083096)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pancreatic function and diabetes
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Materials Science › Biomaterials › Hydrogels: synthesis, properties, applications
Keywords
hypoxia, calcium peroxide, polydimethylsiloxane encapsulation, pancreatic beta cells, pancreatic islets, tissue engineering, oxygen gradients, cell survival, glucose-dependent insulin secretion, beta-cell proliferation
MeSH terms
Animals, Biocompatible Materials, Cell Survival, Dimethylpolysiloxanes, Hydrolysis, Oxides, Oxygen, Sepharose, Time Factors, Cell Hypoxia, Cell Death, Calcium Compounds, Coculture Techniques, Cell Proliferation, Insulin-Secreting Cells, Mice, Rats

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