Evidence map›Paper›PMID 34292976›Full record

ArticlePloS one2021

Microtubules and Gαo-signaling modulate the preferential secretion of young insulin secretory granules in islet β cells via independent pathways.

Ruiying Hu, Xiaodong Zhu, Mingyang Yuan, Kung-Hsien Ho, Irina Kaverina, Guoqiang Gu

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
  2. Review
  3. Roles of molecular motors in insulin-secreting beta cells.Current opinion in cell biology · 2025
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Insulin secretion hot spots in pancreatic β cells as secreting adhesions.Frontiers in cell and developmental biology · 2023
    Article
  9. Review
  10. Review
  11. Microtubules in Pancreatic β Cells: Convoluted Roadways Toward Precision.Frontiers in cell and developmental biology · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Ruiying HuDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.
Xiaodong ZhuDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.
Mingyang YuanDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.
Kung-Hsien HoDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.
Irina KaverinaDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.
Guoqiang GuDepartment of Cell and Developmental Biology, The Program of Developmental Biology and the Center for Stem Cell Biology, Vanderbilt University, Nashville, TN, United States of America.ORCID 0000-0003-0772-9139
Vanderbilt University · US

Funding

Microtubule Regulation of Pancreatic Beta Cell Function and DiabetesR01DK106228 · NIDDK · VANDERBILT UNIVERSITY · PI Guoqiang Gu, William Holmes · 2016 to 2026
$6.4M
The Mechanisms of Islet Cell Specification and DifferentiationR01DK065949 · NIDDK · VANDERBILT UNIVERSITY · PI GU, GUOQIANG · 2004 to 2017
$4.4M
Dynamic architecture of microtubule networksR35GM127098 · NIGMS · VANDERBILT UNIVERSITY · PI Irina Kaverina · 2018 to 2026
$4.1M
The DNA methylome-based regulation of functional beta-cell massR01DK125696 · NIDDK · VANDERBILT UNIVERSITY · PI Guoqiang Gu · 2020 to 2026
$3.4M
Spatial Regulation of Cytoskeletal AsymmetryR01GM078373 · NIGMS · VANDERBILT UNIVERSITY · PI KAVERINA, IRINA · 2008 to 2017
$3.2M
NIDDK NIH HHS R01 DK065949NIDDK NIH HHS R01 DK106228NIDDK NIH HHS R01 DK125696NIGMS NIH HHS R01 GM078373NIGMS NIH HHS R35 GM127098
6 · The paper itself

Abstract

For sustainable function, each pancreatic islet β cell maintains thousands of insulin secretory granules (SGs) at all times. Glucose stimulation induces the secretion of a small portion of these SGs and simultaneously boosts SG biosynthesis to sustain this stock. The failure of these processes, often induced by sustained high-insulin output, results in type 2 diabetes. Intriguingly, young insulin SGs are more likely secreted during glucose-stimulated insulin secretion (GSIS) for unknown reasons, while older SGs tend to lose releasability and be degraded. Here, we examine the roles of microtubule (MT) and Gαo-signaling in regulating the preferential secretion of young versus old SGs. We show that both MT-destabilization and Gαo inactivation results in more SGs localization near plasma membrane (PM) despite higher levels of GSIS and reduced SG biosynthesis. Intriguingly, MT-destabilization or Gαo-inactivation results in higher secretion probabilities of older SGs, while combining both having additive effects on boosting GSIS. Lastly, Gαo inactivation does not detectably destabilize the β-cell MT network. These findings suggest that Gαo and MT can modulate the preferential release of younger insulin SGs via largely parallel pathways.

Indexed as

Insulin SecretionAnimalsCell MembraneCells, CulturedCellular SenescenceGlucoseGTP-Binding Protein alpha Subunits, Gi-GoInsulin-Secreting CellsMiceMice, Inbred ICRMice, KnockoutMicrotubulesNocodazoleSecretory VesiclesSignal TransductionGlucoseGTP-Binding Protein alpha Subunits, Gi-GoNocodazole

Identifiers

PMID34292976
PMCPMC8297875
OpenAlexW3184079044

What Socratic 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 Socratic graph.