Evidence map›Paper›PMID 28179456›Full record

ArticleMolecular biology of the cell2017

Kinetics of milk lipid droplet transport, growth, and secretion revealed by intravital imaging: lipid droplet release is intermittently stimulated by oxytocin.

Andrius Masedunskas, Yun Chen, Rebecca Stussman, Roberto Weigert, Ian H Mather

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

43 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
  2. Milkability in dam-calf contact systems.Translational animal science · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Transporters and drug secretion into human breast milk.Expert opinion on drug metabolism & toxicology · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Multiphoton intravital microscopy of rodents.Nature reviews. Methods primers · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
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

5 authors at 1 institution in 1 country.

Andrius MasedunskasLaboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
Yun ChenLaboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
Rebecca StussmanLaboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
Roberto WeigertLaboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
Ian H MatherIntracellular Membrane Trafficking Section, National Institute of Craniofacial and Dental Research, National Institutes of Health, Bethesda, MD 20892 imather@umd.edu.
National Institutes of Health · US

Funding

Molecular mechanisms of membrane remodelingZIABC011682 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI WEIGERT, ROBERTO · 2016 to 2025
$17.5M
The Mechanism of Milk Lipid SecretionR01HD048588 · NICHD · UNIV OF MARYLAND, COLLEGE PARK · PI MATHER, IAN HEYWOOD · 2006 to 2009
$1.1M
NICHD NIH HHS R01 HD048588
6 · The paper itself

Abstract

The lipid droplet (LD) fraction of milk has attracted special attention because it supplies preformed lipids for neonatal development, and the assembled LDs are secreted by a unique apocrine mechanism. Because many aspects of this key process remain uncharacterized, we developed a facile method for the intravital imaging of mammary cells in transgenic mice that express fluorescently tagged marker proteins. Using these techniques, we describe the first kinetic analysis of LD growth and secretion at peak lactation in real time. LD transit from basal to apical regions was slow (0-2 μm/min) and frequently intermittent. Droplets grew by the fusion of preexisting droplets, with no restriction on the size of fusogenic partners. Most droplet expansion took several hours and occurred in apical nucleation centers, either close to or in association with the apical surface. Droplets even continued to expand as they were emerging from the cell. Contrary to expectations, LDs attached to the apical plasma membrane but still associated with the cytoplasm were released after oxytocin-mediated contraction of the myoepithelium. Thus milk LD secretion is an intermittently regulated process. This novel procedure will have broad application for investigating trafficking events within the mammary epithelium in real time.

Indexed as

AnimalsCell MembraneEpithelial CellsFemaleIntravital MicroscopyKineticsLactationLipid DropletsLipid MetabolismLipidsMammary Glands, AnimalMiceMilkOxytocinLipidsOxytocin

Identifiers

PMID28179456
PMCPMC5385942
OpenAlexW2587095560

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.