Cited by 65Pancreatic function and diabetesPluripotent Stem Cells ResearchDiabetes and associated disorders

Mitigating Ischemic Injury of Stem Cell-Derived Insulin-Producing Cells after Transplant

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Faleo, Gaetano, Russ, Holger A., Wisel, Steven, Parent, Audrey V., Nguyen, Vinh, Nair, Gopika G., Freise, Jonathan E., Villanueva, Karina E. +3 more·2017·Stem Cell Reports

Abstract

The advent of large-scale in vitro differentiation of human stem cell-derived insulin-producing cells (SCIPC) has brought us closer to treating diabetes using stem cell technology. However, decades of experiences from islet transplantation show that ischemia-induced islet cell death after transplant severely limits the efficacy of the therapy. It is unclear to what extent human SCIPC are susceptible to ischemia. In this study, we show that more than half of SCIPC die shortly after transplantation. Nutrient deprivation and hypoxia acted synergistically to kill SCIPC in vitro. Amino acid supplementation rescued SCIPC from nutrient deprivation, likely by providing cellular energy. Generating SCIPC under physiological oxygen tension of 5% conferred hypoxia resistance without affecting their differentiation or function. A two-pronged strategy of physiological oxygen acclimatization during differentiation and amino acid supplementation during transplantation significantly improved SCIPC survival after transplant.

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Crossref · 10.1016/j.stemcr.2017.07.012

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  • For SC-islet transplantations in mice, site and dose influence cure efficacy, with placement underneath the kidney capsule producing much better results than subcutaneous infusions.

    “For SC-islet transplantations, site and dose have been shown to influence cure efficacy in mice, with placement underneath the highly-vascularized kidney capsule producing much better results than subcutaneous infusions.143,150”

    From Developments in stem cell-derived islet replacement therapy for treating type 1 diabetes (2023) · cites this paper as [143]

    The Results section, “Attrition of SCIPC and Mature Islet Grafts after Transplant” (page unavailable), reports better SCIPC graft survival under the highly vascularized kidney capsule than at a subcutaneous site. But it measured graft survival in non-diabetic mice, not cure efficacy, and does not establish an effect of transplant dose on cure. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Transplantation of SC-islets into mice has demonstrated that a significant portion of the cells can die shortly after transplantation due to the synergistic effects of nutrient deprivation and hypoxia.

    “Similar to primary islet infusion, transplantation of SC-islets into mice has demonstrated that a significant portion of the cells can die shorty after transplantation due to the synergistic effects of nutrient deprivation and hypoxia.143”

    From Developments in stem cell-derived islet replacement therapy for treating type 1 diabetes (2023) · cites this paper as [143]

    The Results section, “Attrition of SCIPC and Mature Islet Grafts after Transplant,” reports that approximately 50% of SCIPC graft mass was lost within one week of transplantation into mice. The Results section, “Impact of Hypoxia on SCIPC and Islet Viability,” shows synergistic cell death from nutrient deprivation and hypoxia in vitro. The Discussion says these factors are likely major contributors to death after transplantation, but does not demonstrate that their synergy caused the observed loss in mice. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • To improve SC-islet resistance to low oxygen conditions following transplantation, stem cells were differentiated under hypoxic conditions.

    “For example, to improve SC-islet resistance to low oxygen conditions following transplantation, stem cells were differentiated under hypoxic conditions.143”
  • Transplanting preconditioned SC-islets in combination with supplemental amino acids drastically improved SC-islet survival within the first several weeks.

    “Transplanting these preconditioned SC-islets in combination with supplemental amino acids to mitigate nutrient deprivation drastically improved SC-islet survival within the first several weeks, highlighting how cell-targeted interventions can improve graft outcomes.”

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Authors
Faleo, G., Russ, H. A., Wisel, S., Parent, A. V., Nguyen, V., Nair, G. G., Freise, J. E., Villanueva, K. E., Szot, G. L., Hebrok, M., & Tang, Q.
Affiliations
University of California, San Francisco (US)
Corresponding author
Tang, Qizhi
Venue
Stem Cell Reports
Publisher
Elsevier BV
Published
2017-09
Volume
9
Issue
3
Pages
807-819
ISSN
2213-6711 (ISSN-L)
OpenAlex
W2744100033
Cited by
65
References
65
Citations by year
2026: 8 · 2025: 10 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 9 · 2020: 7 · 2019: 5 · 2018: 7
FWCI
5.32
Type
journal article
Language
en
Open access
Locations
  • Stem Cell Reports (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-nd)
Funders
  • Foundation for Diabetes Research
  • American Diabetes Association (1-15-BS-179)
  • Larry Hillblom Foundation Fellowship
  • UCSF Program for Breakthrough Biomedical Research
  • JDRF (3-2012-266)
  • Eli and Edy the Broad Regeneration Medicine and Stem Cell Fellowship (T32AI125222)
  • NIH (DK105831, DK108666, P30DK063720)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
Keywords
islet transplantation, ischemic injury, hypoxia, nutrient deprivation, amino acid supplementation, oxygen partial pressure, cell survival, diabetes treatment, islet cell death
MeSH terms
Amino Acids, Animals, Humans, Ischemia, Mice, Inbred C57BL, Oxygen, Stem Cells, Tissue Survival, Cell Hypoxia, Islets of Langerhans Transplantation, Cell Death, Pyruvic Acid, Cytoprotection, Stem Cell Transplantation, Insulin-Secreting Cells, TOR Serine-Threonine Kinases

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