Evidence map›Paper›PMID 10198064›Full record

ArticleMolecular biology of the cell1999

Dynamics of a chemoattractant receptor in living neutrophils during chemotaxis.

G Servant, O D Weiner, E R Neptune, J W Sedat, H R Bourne

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 230 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Perspective on Interdisciplinary Approaches on Chemotaxis.Angewandte Chemie (International ed. in English) · 2025
    Review
  4. Article
  5. Article
  6. [Advancement in neutrophil-based drug delivery systems].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. The principles of directed cell migration.Nature reviews. Molecular cell biology · 2021
    Review
  11. Article
  12. Cadherin puncta are interdigitated dynamic actin protrusions necessary for stable cadherin adhesion.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Analysis of barotactic and chemotactic guidance cues on directional decision-making ofProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. The LTBJournal of cell science · 2018
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Microfluidic gradient device for studying mesothelial cell migration and the effect of chronic carbon nanotube exposure.Journal of micromechanics and microengineering : structures, devices, and systems · 2015
    Article

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

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 2 institutions in 1 country.

G ServantDepartments of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, California 94143, USA.
O D Weiner
E R Neptune
J W Sedat
H R Bourne
Cellular Research (United States) · USUniversity of California, San Francisco · US

Funding

MOLECULAR BASIS OF RECEPTOR-CYCLASE COUPLINGR01GM027800 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BOURNE, HENRY R · 1985 to 2006
$4.4M
Study of Diploid Interphase and Anaphase ChromosomesR01GM025101 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SEDAT, JOHN W · 1985 to 2006
$4.1M
G PROTEIN SUBUNITS--CELL BIOLOGY AND SIGNALINGR01CA054427 · NCI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BOURNE, HENRY R · 1992 to 2001
$528k
MOLECULAR BASIS OF RECEPTOR/CYCLASE COUPLINGR37GM027800 · NIGMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BOURNE, HENRY R · 1990 to 1999
–
NCI NIH HHS CA-54427NIGMS NIH HHS GM-25101NIGMS NIH HHS GM-27800NIGMS NIH HHS R01 GM025101NIGMS NIH HHS R01 GM027800NIGMS NIH HHS R37 GM027800
6 · The paper itself

Abstract

Persistent directional movement of neutrophils in shallow chemotactic gradients raises the possibility that cells can increase their sensitivity to the chemotactic signal at the front, relative to the back. Redistribution of chemoattractant receptors to the anterior pole of a polarized neutrophil could impose asymmetric sensitivity by increasing the relative strength of detected signals at the cell's leading edge. Previous experiments have produced contradictory observations with respect to receptor location in moving neutrophils. To visualize a chemoattractant receptor directly during chemotaxis, we expressed a green fluorescent protein (GFP)-tagged receptor for a complement component, C5a, in a leukemia cell line, PLB-985. Differentiated PLB-985 cells, like neutrophils, adhere, spread, and polarize in response to a uniform concentration of chemoattractant, and orient and crawl toward a micropipette containing chemoattractant. Recorded in living cells, fluorescence of the tagged receptor, C5aR-GFP, shows no apparent increase anywhere on the plasma membrane of polarized and moving cells, even at the leading edge. During chemotaxis, however, some cells do exhibit increased amounts of highly folded plasma membrane at the leading edge, as detected by a fluorescent probe for membrane lipids; this is accompanied by an apparent increase of C5aR-GFP fluorescence, which is directly proportional to the accumulation of plasma membrane. Thus neutrophils do not actively concentrate chemoattractant receptors at the leading edge during chemotaxis, although asymmetrical distribution of membrane may enrich receptor number, relative to adjacent cytoplasmic volume, at the anterior pole of some polarized cells. This enrichment could help to maintain persistent migration in a shallow gradient of chemoattractant.

Indexed as

Antigens, CDCell AdhesionCell LineCell PolarityChemotaxis, LeukocyteComplement C5aGreen Fluorescent ProteinsHumansLeukemiaLuminescent ProteinsNeutrophilsN-Formylmethionine Leucyl-PhenylalanineReceptor, Anaphylatoxin C5aReceptors, ComplementReceptors, Formyl PeptideReceptors, ImmunologicAntigens, CDComplement C5aGreen Fluorescent ProteinsLuminescent ProteinsN-Formylmethionine Leucyl-PhenylalanineReceptor, Anaphylatoxin C5aReceptors, ComplementReceptors, Formyl PeptideReceptors, ImmunologicReceptors, PeptideRecombinant Fusion Proteins

Identifiers

PMID10198064
PMCPMC25243
OpenAlexW2085929514

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.