Cited by 235Immune Cell Function and InteractionLiver physiology and pathologyLiver Diseases and Immunity

CXCR6 marks a novel subset of T-betloEomeshi natural killer cells residing in human liver

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Stegmann, Kerstin A., Robertson, Francis, Hansi, Navjyot, Gill, Upkar, Pallant, Celeste, Christophides, Theodoros, Pallett, Laura J., Peppa, Dimitra +6 more·2016·Scientific Reports

Abstract

Natural killer cells (NK) are highly enriched in the human liver, where they can regulate immunity and immunopathology. We probed them for a liver-resident subset, distinct from conventional bone-marrow-derived NK. CXCR6+ NK were strikingly enriched in healthy and diseased liver compared to blood (p < 0.0001). Human hepatic CXCR6+ NK had an immature phenotype (predominantly CD56 bright CD16−CD57−), and expressed the tissue-residency marker CD69. CXCR6+ NK produced fewer cytotoxic mediators and pro-inflammatory cytokines than the non-liver-specific CXCR6− fraction. Instead CXCR6+ NK could upregulate TRAIL, a key death ligand in hepatitis pathogenesis. CXCR6 demarcated liver NK into two transcriptionally distinct populations: T-bet hi Eomes lo(CXCR6−) and T-bet lo Eomes hi(CXCR6+); the latter was virtually absent in the periphery. The small circulating CXCR6+ subset was predominantly T-bet hi Eomes lo, suggesting its lineage was closer to CXCR6− peripheral than CXCR6+ liver NK. These data reveal a large subset of human liver-resident T-bet lo Eomes hi NK, distinguished by their surface expression of CXCR6, adapted for hepatic tolerance and inducible anti-viral immunity.

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  • The tissue-resident phenotype is represented among CD56 bright cells which constitutively express chemokine receptors CCR5, CXCR6 and the tissue residency marker CD69.

    “The tissue-resident phenotype is represented among the CD56 bright cells which constitutively express the chemokine receptors C-C chemokine receptor (CCR)5, CXCR6 and the tissue residency marker CD69(71).”

    From The liver as a central "hub" of the immune system: pathophysiological implications (2025) · cites this paper as [71]

    In Results and Discussion, the paper reports that CXCR6-positive human liver NK cells are predominantly CD56bright and that 95% co-express CD69 directly ex vivo, consistent with a tissue-resident phenotype. It does not report CCR5 expression in this subset or establish that all three markers are constitutively expressed. (LLM, conf=0.88)

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Authors
Stegmann, K. A., Robertson, F., Hansi, N., Gill, U., Pallant, C., Christophides, T., Pallett, L. J., Peppa, D., Dunn, C., Fusai, G., Male, V., Davidson, B. R., Kennedy, P., & Maini, M. K.
Affiliations
  • University College London (GB)
  • The Royal Free Hospital (GB)
  • Queen Mary University of London (GB)
Corresponding author
Maini, Mala K.
Venue
Scientific Reports
Published
2016-05-23
Volume
6
Issue
1
Pages
26157-26157
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2408392972
Cited by
235
References
30
Citations by year
2026: 7 · 2025: 19 · 2024: 12 · 2023: 14 · 2022: 31 · 2021: 21 · 2020: 30 · 2019: 35 · 2018: 29 · 2017: 28 · 2016: 9
FWCI
20.42
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Queen Mary Research Online (Queen Mary University of London) (submittedVersion, cc-by)
  • Spiral (Imperial College London) (submittedVersion, cc-by)
Funders
  • Wellcome Trust (101849/Z/13/Z)
  • National Institute for Health and Care Research (HTD 556, 10/4001/11)
  • Medical Research Council (MR/M008614/1, MR/M020126/1)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Hepatology › Liver Diseases and Immunity
Keywords
CXCR6, natural killer cells, T-bet, Eomes, CD69, TRAIL, hepatitis, NK cell differentiation, antiviral immunity, CD56bright NK cells, tissue-resident NK cells
MeSH terms
Receptors, CXCR6, T-bet Transcription Factor, Adolescent, Adult, Aged, Female, Humans, Killer Cells, Natural, Liver, Male, Middle Aged, Immunophenotyping, Lymphocyte Subsets, Cytokines, T-Box Domain Proteins, Young Adult

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