Evidence map›Paper›PMID 23113614›Full record

ArticleImmunology2013

The phagocytic capacity and immunological potency of human dendritic cells is improved by α2,6-sialic acid deficiency.

M Guadalupe Cabral, Zélia Silva, Dário Ligeiro, Elsa Seixas, Hélio Crespo, Mylène A Carrascal, Mariana Silva, Ana R Piteira, Paulo Paixão, Joseph T Lau and 1 more

Open access · greenAbstract read
In one paragraph

Article in Immunology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

23 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Exploring Siglecs: Potential Modulators of Immune Cells in Food Allergy and Therapeutic Applications.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2025
    Review
  3. Article
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  5. Review
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  7. Article
  8. Review
  9. Sialic acid blockade in dendritic cells enhances CD8Cellular and molecular life sciences : CMLS · 2022
    Article
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  11. Article
  12. Review
  13. Review
  14. Article
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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

11 authors at 2 institutions in 2 countries.

M Guadalupe CabralCEDOC, Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal.
Zélia Silva
Dário Ligeiro
Elsa Seixas
Hélio Crespo
Mylène A Carrascal
Mariana Silva
Ana R Piteira
Paulo Paixão
Joseph T Lau
Paula A Videira
Universidade Nova de Lisboa · PTRoswell Park Comprehensive Cancer Center · US

Funding

Two-Spirit Films in Indigenous Cancer HealthP30CA016056 · NCI · ROSWELL PARK CANCER INSTITUTE CORP · PI Dean G. Tang · 1985 to 2026
$116.6M
REGULATION OF LACTOSAMINYL GLYCAN BIOSYNTHESIS IN HEMATOPOIETIC CELLSP01HL107146 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI LAU, JOSEPH TY · 2011 to 2017
$17.7M
ST6Gal Sialyltransferase in Innate and Adaptive Immune ResponseR01AI056082 · NIAID · ROSWELL PARK CANCER INSTITUTE CORP · PI LAU, JOSEPH TY · 2006 to 2015
$3.6M
NCI NIH HHS CA16056NCI NIH HHS P30 CA016056NHLBI NIH HHS P01 HL107146NHLBI NIH HHS P01HL107146NIAID NIH HHS R01 AI056082NIAID NIH HHS R01AI38193
6 · The paper itself

Abstract

Dendritic cells (DCs) play an essential role in immunity against bacteria by phagocytosis and by eliciting adaptive immune responses. Previously, we demonstrated that human monocyte-derived DCs (MDDCs) express a high content of cell surface α2,6-sialylated glycans. However, the relative role of these sialylated structures in phagocytosis of bacteria has not been reported. Here, we show that treatment with a sialidase significantly improved the capacity of both immature and mature MDDCs to phagocytose Escherichia coli. Desialylated MDDCs had a significantly more mature phenotype, with higher expression of MHC molecules and interleukin (IL)-12, tumour necrosis factor-α, IL-6 and IL-10 cytokines, and nuclear factor-κB activation. T lymphocytes primed by desialylated MDDCs expressed more interferon-γ when compared with priming by sialylated MDDCs. Improved phagocytosis required E. coli sialic acids, indicating a mechanism of host-pathogen interaction dependent on sialic acid moieties. The DCs harvested from mice deficient in the ST6Gal.1 sialyltransferase showed improved phagocytosis capacity, demonstrating that the observed sialidase effect was a result of the removal of α2,6-sialic acid. The phagocytosis of different pathogenic E. coli isolates was also enhanced by sialidase, which suggests that modifications on MDDC sialic acids may be considered in the development of MDDC-based antibacterial therapies. Physiologically, our findings shed new light on mechanisms that modulate the function of both immature and mature MDDCs, in the context of host-bacteria interaction. Hence, with particular relevance to DC-based therapies, the engineering of α2,6-sialic acid cell surface is a novel possibility to fine tune DC phagocytosis and immunological potency.

Indexed as

AnimalsCells, CulturedCytoskeletal ProteinsDendritic CellsEscherichia coliHumansMiceMice, KnockoutN-Acetylneuraminic AcidPhagocytosisrho GTP-Binding ProteinsCytoskeletal ProteinsN-Acetylneuraminic Acidrho GTP-Binding Proteins

Identifiers

PMID23113614
PMCPMC3573277
OpenAlexW1968478527

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.