Evidence map›Paper›PMID 26479922›Full record

ArticleNature medicine2015

Hair follicle-derived IL-7 and IL-15 mediate skin-resident memory T cell homeostasis and lymphoma.

Takeya Adachi, Tetsuro Kobayashi, Eiji Sugihara, Taketo Yamada, Koichi Ikuta, Stefania Pittaluga, Hideyuki Saya, Masayuki Amagai, Keisuke Nagao

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Nature medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05698342 (Tissue-resident Memory T Cells Expression in Melasma), which is not on this map. Cited by 211 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
211citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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.

NCT05698342 completednot on this mapstarted 2021, after this paper: background citation

Tissue-resident Memory T Cells Expression in Melasma

TypeobservationalSponsorUniversidad Autonoma de San Luis PotosíRan2021 to 2022Enrolled20ConditionsMelasma
3 · Its place in the literature

Who cites it

211 citing papers in PubMed, 1 synthesis or guideline pooled it, 312 citations in OpenAlex.

  1. Tissue-Resident Memory T Cells in Skin Diseases: A Systematic Review.International journal of molecular sciences · 2021
    Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Hidden immune memory niches in inflammatory skin diseases.bioRxiv : the preprint server for biology · 2026
    Article
  11. Inflammatory niches as spatial drivers of disease mechanisms and targets for personalized treatment.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
    Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article

151 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

9 authors at 3 institutions in 2 countries.

Takeya AdachiDepartment of Dermatology, Keio University School of Medicine, Tokyo, Japan.
Tetsuro KobayashiDepartment of Dermatology, Keio University School of Medicine, Tokyo, Japan.
Eiji SugiharaDivision of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan.
Taketo YamadaDepartment of Pathology, Keio University School of Medicine, Tokyo, Japan.
Koichi IkutaLaboratory of Biological Protection, Department of Biological Responses, Institute for Virus Research, Kyoto University, Kyoto, Japan.
Stefania PittalugaLaboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.
Hideyuki SayaDivision of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan.ORCID http://orcid.org/0000-0001-6610-1902
Masayuki AmagaiDepartment of Dermatology, Keio University School of Medicine, Tokyo, Japan.
Keisuke NagaoDepartment of Dermatology, Keio University School of Medicine, Tokyo, Japan.ORCID http://orcid.org/0000-0002-7005-3138
Keio University · JPNational Institutes of Health · USKyoto University · JP

Funding

Exploring mechanisms that govern immune homeostasis in skinZIABC011561 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI NAGAO, KEISUKE · 2014 to 2021
$10.1M
Intramural NIH HHS Z99 CA999999Intramural NIH HHS ZIA BC011561
6 · The paper itself

Abstract

The skin harbors a variety of resident leukocyte subsets that must be tightly regulated to maintain immune homeostasis. Hair follicles are unique structures in the skin that contribute to skin dendritic cell homeostasis through chemokine production. We demonstrate that CD4(+) and CD8(+) skin-resident memory T cells (TRM cells), which are responsible for long-term skin immunity, reside predominantly within the hair follicle epithelium of the unperturbed epidermis. TRM cell tropism for the epidermis and follicles is herein termed epidermotropism. Hair follicle expression of IL-15 was required for CD8(+) TRM cells, and IL-7 for CD8(+) and CD4(+) TRM cells, to exert epidermotropism. A lack of either cytokine in the skin led to impaired hapten-induced contact hypersensitivity responses. In a model of cutaneous T cell lymphoma, epidermotropic CD4(+) TRM lymphoma cell localization depended on the presence of hair follicle-derived IL-7. These findings implicate hair follicle-derived cytokines as regulators of malignant and non-malignant TRM cell tissue residence, and they suggest that the cytokines may be targeted therapeutically in inflammatory skin diseases and lymphoma.

Indexed as

AnimalsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCell MovementEpidermisHair FollicleHaptensHomeostasisHumansInterleukin-15Interleukin-7KeratinocytesLangerhans CellsLymphoma, T-Cell, CutaneousMiceSkinHaptensInterleukin-15Interleukin-7

Identifiers

PMID26479922
PMCPMC4636445
OpenAlexW2132921024

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.