Evidence map›Paper›PMID 21984810›Full record

ArticleJournal of cell science2011

A Rab11a-enriched subapical membrane compartment regulates a cytoskeleton-dependent transcytotic pathway in secretory epithelial cells of the lacrimal gland.

Shi Xu, Maria Edman, Mubashera S Kothawala, Guoyong Sun, Lilian Chiang, Austin Mircheff, Lixin Zhu, Curtis Okamoto, Sarah Hamm-Alvarez

Open access · greenAbstract read
In one paragraph

Article in Journal of cell science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Molecular Regulatory Mechanism of Exocytosis in the Salivary Glands.International journal of molecular sciences · 2018
    Review
  6. Article
  7. Article
  8. Membrane Transport across Polarized Epithelia.Cold Spring Harbor perspectives in biology · 2017
    Review
  9. Review
  10. Article
  11. Tear-mediated delivery of nanoparticles through transcytosis of the lacrimal gland.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Article
  12. Article
  13. Article
  14. Article
  15. 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

9 authors at 2 institutions in 1 country.

Shi XuDepartment of Pharmacology and Pharmaceutical Sciences, 1985 Zonal Avenue, USC School of Pharmacy, University of Southern California, Los Angeles, CA 90033, USA.
Maria Edman
Mubashera S Kothawala
Guoyong Sun
Lilian Chiang
Austin Mircheff
Lixin Zhu
Curtis Okamoto
Sarah Hamm-Alvarez
University of Southern California · USUniversity at Buffalo, State University of New York · US

Funding

Research Supplements to Promote DiversityR01EY011386 · NEI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HAMM-ALVAREZ, SARAH F · 1996 to 2025
$9.3M
Trafficking of plgR in Lacrimal GlandR01EY016985 · NEI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HAMM-ALVAREZ, SARAH F · 2006 to 2010
$1.5M
NEI NIH HHS EY016985NEI NIH HHS R01 EY011386NEI NIH HHS R01 EY016985
6 · The paper itself

Abstract

Despite observations that the lacrimal gland has been identified as the principal source of dimeric immunoglobulin A (dIgA) in tears, the mechanism used by lacrimal gland acinar cells (LGACs) to transcytose dIgA produced by interstitial plasma cells is not well-characterized. This study identifies a transcytotic pathway in LGACs regulated by Rab11a for polymeric immunoglobulin receptor (pIgR) and dIgA. EGFP-tagged Rab11a expressed in primary LGACs labeled a unique membrane compartment of comparable localization to endogenous Rab11a beneath the apical plasma membrane. This compartment was enriched in pIgR and clearly distinct from the regulated secretory pathway. Comparison of dIgA uptake in LGACs expressing wild type and dominant negative EGFP-Rab11a showed that the rapid exocytosis of dIgA was inhibited in acini expressing the dominant-negative protein, which additionally redistributed subapical pIgR. The trafficking of EGFP-Rab11a-enriched vesicles was regulated by microtubule-based and myosin Vb motors at distinct steps. Our data suggest that Rab11a is a crucial regulator of dIgA trafficking in primary acinar secretory epithelial cells and further support a role for microtubules, cytoplasmic dynein, actin filaments and myosin Vb in the maintenance of the Rab11a compartment in this primary secretory epithelial cell.

Indexed as

TranscytosisAcinar CellsAnimalsCell CompartmentationCell MembraneCytoskeletonFemaleGene Expression RegulationImmunoglobulin ALacrimal ApparatusMutationrab11 GTP-Binding ProteinsRabbitsrab GTP-Binding ProteinsReceptors, Polymeric ImmunoglobulinTearsImmunoglobulin Arab11 GTP-Binding Proteinsrab GTP-Binding ProteinsReceptors, Polymeric Immunoglobulin

Identifiers

PMID21984810
PMCPMC3196860
OpenAlexW1983785286

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.