Cited by 45Pancreatic function and diabetesPluripotent Stem Cells ResearchDiabetes and associated disorders

Whole-genome CRISPR screening identifies genetic manipulations to reduce immune rejection of stem cell-derived islets

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Sintov, Elad, Nikolskiy, Igor, Barrera, Victor, Hyoje-Ryu Kenty, Jennifer, Atkin, Alexander S., Gerace, Dario, Ho Sui, Shannan J., Boulanger, Kyle +1 more·2022·Stem Cell Reports

Abstract

Human embryonic stem cells (hESCs) provide opportunities for cell replacement therapy of insulin-dependent diabetes. Therapeutic quantities of human stem cell-derived islets (SC-islets) can be produced by directed differentiation. However, preventing allo-rejection and recurring autoimmunity, without the use of encapsulation or systemic immunosuppressants, remains a challenge. An attractive approach is to transplant SC-islets, genetically modified to reduce the impact of immune rejection. To determine the underlying forces that drive immunogenicity of SC-islets in inflammatory environments, we performed single-cell RNA sequencing (scRNA-seq) and whole-genome CRISPR screen of SC-islets under immune interaction with allogeneic peripheral blood mononuclear cells (PBMCs). Data analysis points to "alarmed" populations of SC-islets that upregulate genes in the interferon (IFN) pathway. The CRISPR screen in vivo confirms that targeting IFNγ-induced mediators has beneficial effects on SC-islet survival under immune attack. Manipulating the IFN response by depleting chemokine ligand 10 (CXCL10) in SC-islet grafts confers improved survival against allo-rejection compared with wild-type grafts in humanized mice. These results offer insights into the nature of immune destruction of SC-islets during allogeneic responses and provide targets for gene editing.

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Crossref · 10.1016/j.stemcr.2022.08.002

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  • scRNA-seq and a CRISPR screen of SC-islets transplanted into a humanized mouse model revealed that SC-islets upregulated genes in the interferon (IFN) pathway during graft rejection.

    “Lastly, in a unique approach, scRNA-seq and a CRIPSR screen of SC-islets transplanted into a humanized mouse model revealed that SC-islets upregulated genes in the interferon (IFN) pathway during graft rejection.”
  • Knockout of CXCL10 improved survival during allogeneic transplantation in humanized mice.

    “Knockout of CXCL10, which is induced by IFN signaling and appeared to be essential for early IFN-triggered immune responses in transplanted SC-islets, improved survival during allogeneic transplantation in humanized mice.”

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Authors
Sintov, E., Nikolskiy, I., Barrera, V., Hyoje-Ryu Kenty, J., Atkin, A. S., Gerace, D., Ho Sui, S. J., Boulanger, K., & Melton, D. A.
Affiliations
  • Harvard University (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Sintov, Elad
  • Melton, Douglas A.
Venue
Stem Cell Reports
Publisher
Elsevier BV
Published
2022-09
Volume
17
Issue
9
Pages
1976-1990
ISSN
2213-6711 (ISSN-L)
OpenAlex
W4294190626
Cited by
45
References
75
Citations by year
2026: 10 · 2025: 8 · 2024: 10 · 2023: 14 · 2022: 2
FWCI
8.12
Type
journal article
Language
en
Open access
Locations
  • Stem Cell Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Harvard Stem Cell Institute
  • Harvard Medical School
  • Juvenile Diabetes Research Foundation United States of America (3-PDF-2018-590-A-N)
  • Leona M. and Harry B. Helmsley Charitable Trust (5-SRA-2014-284-Q-R)
  • Broad Institute
  • Harvard University
  • JPB Foundation (1094)
  • Harvard University Harvard Catalyst
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
stem cell-derived islets, allograft rejection, immune rejection, interferon-gamma, interferon pathway, CXCL10, genome editing, CRISPR screen, type 1 diabetes, islet transplantation, humanized mice, islet graft survival, autoimmunity
MeSH terms
Human Embryonic Stem Cells, Animals, Humans, Islets of Langerhans, Leukocytes, Mononuclear, Islets of Langerhans Transplantation, Mice, Clustered Regularly Interspaced Short Palindromic Repeats

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