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Comment
. 2020 Dec;69(12):2575-2577.
doi: 10.2337/dbi20-0039.

There Is Something About Insulin Granules

Affiliations
Comment

There Is Something About Insulin Granules

Bart O Roep. Diabetes. 2020 Dec.
No abstract available

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Figures

Figure 1
Figure 1
Multitasking by insulin granules. Insulin secretory granules (right) are unique features of β-cells (green; left) in pancreatic islets. Light organelles represent immature granules, whereas mature granules are dark and dense spheres containing insulin crystals, which are distinct from somatostatin granules in delta cells (blue). Native proteins as well as posttranscriptionally or posttranslationally modified proteins and sphingolipids have now been identified in these characteristic organelles that act as autoantigenic targets or immune modulators of islet-specific autoreactive CD4 and CD8 T cells. (Electron microscopy graph kindly shared by Dr. Ben Giepmans [2].)

Comment on

References

    1. Hutton JC. The insulin secretory granule. Diabetologia 1989;32:271–281 - PubMed
    1. de Boer P, Pirozzi NM, Wolters AHG, et al. . Large-scale electron microscopy database for human type 1 diabetes. Nat Commun 2020;11:2475. - PMC - PubMed
    1. Roep BO, Arden SD, de Vries RR, Hutton JC. T-cell clones from a type-1 diabetes patient respond to insulin secretory granule proteins. Nature 1990;345:632–634 - PubMed
    1. Roep BO, Kallan AA, Duinkerken G, et al. . T-cell reactivity to beta-cell membrane antigens associated with beta-cell destruction in IDDM. Diabetes 1995;44:278–283 - PubMed
    1. Roep BO, Stobbe I, Duinkerken G, et al. . Auto- and alloimmune reactivity to human islet allografts transplanted into type 1 diabetic patients. Diabetes 1999;48:484–490 - PubMed