Evidence map›Paper›PMID 35957816›Full record

ReviewFrontiers in endocrinology2022

Alpha-cell paracrine signaling in the regulation of beta-cell insulin secretion.

Marlena M Holter, Mridusmita Saikia, Bethany P Cummings

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
12.6field-weighted citation impact, top 1% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. GLP-1 receptor agonism: a transformative approach for managing type-2 diabetes and obesity.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2025
    Review
  11. Article
  12. Glucagon-like peptide-1.Trends in endocrinology and metabolism: TEM · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Marlena M HolterDepartment of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States.
Mridusmita SaikiaDepartment of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States.
Bethany P CummingsSchool of Medicine, Department of Surgery, Center for Alimentary and Metabolic Sciences, University of California, Davis, Sacramento, CA, United States.
Cornell University · USUniversity of California, Davis · US

Funding

Translational Research CoreP30DK020541 · NIDDK · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI STREAMSON C CHUA · 2015 to 2026
$27.7M
Defining alpha-cell proglucagon processing for type 2 diabetes treatmentR56DK124853 · NIDDK · UNIVERSITY OF CALIFORNIA AT DAVIS · PI CUMMINGS, BETHANY PAIGE · 2020 to 2020
$387k
Defining alpha-cell PC1/3 expression regulation for type 2 diabetesF30DK126538 · NIDDK · CORNELL UNIVERSITY · PI HOLTER, MARLENA META · 2020 to 2023
$165k
NIDDK NIH HHS F30 DK126538NIDDK NIH HHS P30 DK020541NIDDK NIH HHS R56 DK124853
6 · The paper itself

Abstract

As an incretin hormone, glucagon-like peptide 1 (GLP-1) lowers blood glucose levels by enhancing glucose-stimulated insulin secretion from pancreatic beta-cells. Therapies targeting the GLP-1 receptor (GLP-1R) use the classical incretin model as a physiological framework in which GLP-1 secreted from enteroendocrine L-cells acts on the beta-cell GLP-1R. However, this model has come into question, as evidence demonstrating local, intra-islet GLP-1 production has advanced the competing hypothesis that the incretin activity of GLP-1 may reflect paracrine signaling of GLP-1 from alpha-cells on GLP-1Rs on beta-cells. Additionally, recent studies suggest that alpha-cell-derived glucagon can serve as an additional, albeit less potent, ligand for the beta-cell GLP-1R, thereby expanding the role of alpha-cells beyond that of a counterregulatory cell type. Efforts to understand the role of the alpha-cell in the regulation of islet function have revealed both transcriptional and functional heterogeneity within the alpha-cell population. Further analysis of this heterogeneity suggests that functionally distinct alpha-cell subpopulations display alterations in islet hormone profile. Thus, the role of the alpha-cell in glucose homeostasis has evolved in recent years, such that alpha-cell to beta-cell communication now presents a critical axis regulating the functional capacity of beta-cells. Herein, we describe and integrate recent advances in our understanding of the impact of alpha-cell paracrine signaling on insulin secretory dynamics and how this intra-islet crosstalk more broadly contributes to whole-body glucose regulation in health and under metabolic stress. Moreover, we explore how these conceptual changes in our understanding of intra-islet GLP-1 biology may impact our understanding of the mechanisms of incretin-based therapeutics.

Indexed as

IncretinsParacrine CommunicationGlucagon-Like Peptide 1GlucoseInsulinInsulin SecretionGlucagon-Like Peptide 1GlucoseIncretinsInsulinalpha-cellbeta-cellGLP-1glucagoninsulinparacrine signaling

Identifiers

PMID35957816
PMCPMC9360487
OpenAlexW4287877231

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.