Evidence map›Paper›PMID 17562860›Full record

ArticleMolecular and cellular biology2007

Distinct endocytic mechanisms of CD22 (Siglec-2) and Siglec-F reflect roles in cell signaling and innate immunity.

Hiroaki Tateno, Hongyi Li, Melissa J Schur, Nicolai Bovin, Paul R Crocker, Warren W Wakarchuk, James C Paulson

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.

  1. Pooled it
  2. CD22 as a Target for Hematological Malignancies and Autoimmune Diseases.International journal of molecular sciences · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Siglecs in allergy and asthma.Molecular aspects of medicine · 2023
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Durable SARS-CoV-2 B cell immunity after mild or severe disease.The Journal of clinical investigation · 2021
    Article
  16. Article
  17. Article
  18. Durable SARS-CoV-2 B cell immunity after mild or severe disease.medRxiv : the preprint server for health sciences · 2020
    Article
  19. Article
  20. Review

11 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

7 authors at 4 institutions in 4 countries.

Hiroaki TatenoDepartment of Molecular Biology and Molecular and Experimental Medicine, The Scripps Research Institute, San Diego, CA, USA.
Hongyi Li
Melissa J Schur
Nicolai Bovin
Paul R Crocker
Warren W Wakarchuk
James C Paulson
Scripps Research Institute · USInstitute for Biological Sciences · CAInstitute of Bioorganic Chemistry · RUWellcome Trust · GB

Funding

REGULATION OF SIALOSIDE EXPRESSION IN LEUKOCYTESR01AI050143 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI PAULSON, JAMES C · 2003 to 2018
$7.0M
MAMMALIAN SIALIC ACID BINDING PROTEINSR01GM060938 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI PAULSON, JAMES C · 2000 to 2010
$4.0M
NIAID NIH HHS AI050143NIAID NIH HHS R01 AI050143NIGMS NIH HHS GM60938NIGMS NIH HHS R01 GM060938Wellcome Trust
6 · The paper itself

Abstract

Sialic acid-binding immunoglobulin-like lectins (siglecs) are predominately expressed on immune cells. They are best known as regulators of cell signaling mediated by cytoplasmic tyrosine motifs and are increasingly recognized as receptors for pathogens that bear sialic acid-containing glycans. Most siglec proteins undergo endocytosis, an activity tied to their roles in cell signaling and innate immunity. Here, we investigate the endocytic pathways of two siglec proteins, CD22 (Siglec-2), a regulator of B-cell signaling, and mouse eosinophil Siglec-F, a member of the rapidly evolving CD33-related siglec subfamily that are expressed on cells of the innate immune system. CD22 exhibits hallmarks of clathrin-mediated endocytosis and traffics to recycling compartments, consistent with previous reports demonstrating its localization to clathrin domains. Like CD22, Siglec-F mediates endocytosis of anti-Siglec-F and sialoside ligands, a function requiring intact tyrosine-based motifs. In contrast, however, we find that Siglec-F endocytosis is clathrin and dynamin independent, requires ADP ribosylation factor 6, and traffics to lysosomes. The results suggest that these two siglec proteins have evolved distinct endocytic mechanisms consistent with roles in cell signaling and innate immunity.

Indexed as

EndocytosisSignal TransductionActinsADP-Ribosylation Factor 6ADP-Ribosylation FactorsAnimalsAntibodiesAntigens, Differentiation, MyelomonocyticBacteriaCHO CellsCholesterolCricetinaeCricetulusCytoskeletonDynamin IHumansActinsADP-Ribosylation Factor 6ADP-Ribosylation FactorsAntibodiesAntigens, Differentiation, MyelomonocyticARF6 protein, humanArf6 protein, mouseCholesterolDynamin ILigandsN-Acetylneuraminic AcidProtein-Tyrosine KinasesSialic Acid Binding Ig-like Lectin 2Sialic Acid Binding Immunoglobulin-like LectinsSiglecf protein, mouseTyrosine

Identifiers

PMID17562860
PMCPMC1952126
OpenAlexW2130772936

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.