Evidence map›Paper›PMID 19995951›Full record

ArticleThe Journal of experimental medicine2009

External antigen uptake by Langerhans cells with reorganization of epidermal tight junction barriers.

Akiharu Kubo, Keisuke Nagao, Mariko Yokouchi, Hiroyuki Sasaki, Masayuki Amagai

Abstract read
In one paragraph

Article in The Journal of experimental medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 205 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
205citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

205 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Merkel cell polyomavirus and Langerhans cell neoplasm.Cell communication and signaling : CCS · 2018
    Pooled it
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  13. Polymorphic light eruption shows aberrant expression of epidermal tight junction proteins in unexposed and UVR-exposed skin: an experimental study.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Article
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145 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.

Akiharu KuboDepartment of Dermatology, School of Medicine, Keio University, Tokyo 160-8582, Japan. akiharu@a5.keio.jp
Keisuke Nagao
Mariko Yokouchi
Hiroyuki Sasaki
Masayuki Amagai

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Outermost barriers are critical for terrestrial animals to avoid desiccation and to protect their bodies from foreign insults. Mammalian skin consists of two sets of barriers: stratum corneum (SC) and tight junctions (TJs). How acquisition of external antigens (Ags) by epidermal Langerhans cells (LCs) occur despite these barriers has remained unknown. We show that activation-induced LCs elongate their dendrites to penetrate keratinocyte (KC) TJs and survey the extra-TJ environment located outside of the TJ barrier, just beneath the SC. Penetrated dendrites uptake Ags from the tip where Ags colocalize with langerin/Birbeck granules. TJs at KC-KC contacts allow penetration of LC dendrites by dynamically forming new claudin-dependent bicellular- and tricellulin-dependent tricellular TJs at LC-KC contacts, thereby maintaining TJ integrity during Ag uptake. Thus, covertly under keratinized SC barriers, LCs and KCs demonstrate remarkable cooperation that enables LCs to gain access to external Ags that have violated the SC barrier while concomitantly retaining TJ barriers to protect intra-TJ environment.

Indexed as

AnimalsAntigensEndocytosisEpidermisFemaleImaging, Three-DimensionalLangerhans CellsMiceMice, Inbred C57BLOvalbuminTight JunctionsAntigensOvalbumin

Identifiers

PMID19995951
PMCPMC2806471

What OpenQuestion holds

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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.