Evidence map›Paper›PMID 28137793›Full record

ArticleDiabetes2017

Increase in Pancreatic Proinsulin and Preservation of β-Cell Mass in Autoantibody-Positive Donors Prior to Type 1 Diabetes Onset.

Teresa Rodriguez-Calvo, Jose Zapardiel-Gonzalo, Natalie Amirian, Ericka Castillo, Yasaman Lajevardi, Lars Krogvold, Knut Dahl-Jørgensen, Matthias G von Herrath

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
10.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

78 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Dual CD8 and TCR editing in regulatory T cells mediates HLA-A2-restricted tissue-specific homing.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
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  11. Vaccines · 2025
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  17. Article
  18. Circulating pancreatic enzyme levels are a causal biomarker of type 1 diabetes.medRxiv : the preprint server for health sciences · 2024
    Article
  19. β-Cell Heterogeneity and Plasticity.Advances in anatomy, embryology, and cell biology · 2024
    Review
  20. Article

18 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Teresa Rodriguez-CalvoType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA.
Jose Zapardiel-GonzaloType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA.
Natalie AmirianType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA.
Ericka CastilloType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA.
Yasaman LajevardiType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA.
Lars KrogvoldDivision of Paediatric and Adolescent Medicine, Oslo University Hospital, and Faculty of Medicine, University of Oslo, Oslo, Norway.
Knut Dahl-JørgensenDivision of Paediatric and Adolescent Medicine, Oslo University Hospital, and Faculty of Medicine, University of Oslo, Oslo, Norway.
Matthias G von HerrathType 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA matthias@lji.org mtvh@novonordisk.com.
La Jolla Institute for Immunology · USUniversity of Oslo · NONovo Nordisk (United States) · US

Funding

Specificity, Phenotype and Function of Pancreatic CD8 T Cells in Human Type 1 DiabetesR01AI092453 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Estefania Quesada Masachs · 2011 to 2026
$5.7M
NIAID NIH HHS R01 AI092453
6 · The paper itself

Abstract

Type 1 diabetes is characterized by the loss of insulin production caused by β-cell dysfunction and/or destruction. The hypothesis that β-cell loss occurs early during the prediabetic phase has recently been challenged. Here we show, for the first time in situ, that in pancreas sections from autoantibody-positive (Ab+) donors, insulin area and β-cell mass are maintained before disease onset and that production of proinsulin increases. This suggests that β-cell destruction occurs more precipitously than previously assumed. Indeed, the pancreatic proinsulin-to-insulin area ratio was also increased in these donors with prediabetes. Using high-resolution confocal microscopy, we found a high accumulation of vesicles containing proinsulin in β-cells from Ab+ donors, suggesting a defect in proinsulin conversion or an accumulation of immature vesicles caused by an increase in insulin demand and/or a dysfunction in vesicular trafficking. In addition, islets from Ab+ donors were larger and contained a higher number of β-cells per islet. Our data indicate that β-cell mass (and function) is maintained until shortly before diagnosis and declines rapidly at the time of clinical onset of disease. This suggests that secondary prevention before onset, when β-cell mass is still intact, could be a successful therapeutic strategy.

Indexed as

AdultAutoantibodiesCase-Control StudiesDiabetes Mellitus, Type 1FemaleFluorescent Antibody TechniqueHumansInsulin-Secreting CellsMaleMicroscopy, ConfocalMiddle AgedPancreasPrediabetic StateProinsulinTransport VesiclesYoung AdultAutoantibodiesProinsulin

Identifiers

PMID28137793
PMCPMC5399615
OpenAlexW2581716463

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.