Cited by 149Immune Cell Function and InteractionTGF-β signaling in diseasesCancer Immunotherapy and Biomarkers

Impairment of NKG2D-Mediated Tumor Immunity by TGF-β

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Lazarova, Mariya, Steinle, Alexander·2019·Frontiers in Immunology

Abstract

Transforming growth factor-β (TGF-β) suppresses innate and adaptive immune responses via multiple mechanisms. TGF-β also importantly contributes to the formation of an immunosuppressive tumor microenvironment thereby promoting tumor growth. Amongst others, TGF-β impairs tumor recognition by cytotoxic lymphocytes via NKG2D. NKG2D is a homodimeric C-type lectin-like receptor expressed on virtually all human NK cells and cytotoxic T cells, and stimulates their effector functions upon engagement by NKG2D ligands (NKG2DL). While NKG2DL are mostly absent from healthy cells, their expression is induced by cellular stress and malignant transformation, and, accordingly, frequently detected on various tumor cells. Hence, the NKG2D axis is thought to play a decisive role in cancer immunosurveillance and, obviously, often is compromised in clinically apparent tumors. There is mounting evidence that TGF-β, produced by tumor cells and immune cells in the tumor microenvironment, plays a key role in blunting the NKG2D-mediated tumor surveillance. Here, we review the current knowledge on the impairment of NKG2D-mediated cancer immunity through TGF-β and discuss therapeutic approaches aiming at counteracting this major immune escape pathway. By reducing tumor-associated expression of NKG2DL and blinding cytotoxic lymphocytes through down-regulation of NKG2D, TGF-β is acting upon both sides of the NKG2D axis severely compromising NKG2D-mediated tumor rejection. Consequently, novel therapies targeting the TGF-β pathway are expected to reinvigorate NKG2D-mediated tumor elimination and thereby to improve the survival of cancer patients.

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Crossref · 10.3389/fimmu.2019.02689

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  • In the osteosarcoma microenvironment, NK cells were suppressed, but TGF-β expression increased.

    “In the osteosarcoma microenvironment, NK cells were suppressed, but TGF-β expression increased.”

    From Advances on immunotherapy for osteosarcoma (2024) · cites this paper as [69]

    The TGF-β-Mediated Immunosuppression section says TGF-β inhibits NK-cell functions, and the NKG2D-axis section links increased tumor-associated TGF-β with impaired NK cells in several malignancies. The paper does not establish increased TGF-β expression or suppressed NK cells specifically in the osteosarcoma microenvironment (searched: osteosarcoma). No page numbers were available in our copy. (LLM, conf=0.87)

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Authors
Lazarova, M., & Steinle, A.
Affiliations
Goethe University Frankfurt (DE)
Corresponding author
Steinle, Alexander
Venue
Frontiers in Immunology
Published
2019-11-15
Volume
10
Pages
2689-2689
ISSN
1664-3224 (ISSN-L)
OpenAlex
W2986121805
Cited by
149
References
153
Citations by year
2026: 16 · 2025: 20 · 2024: 19 · 2023: 23 · 2022: 20 · 2021: 33 · 2020: 17 · 2019: 1
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Publication Server of Goethe University Frankfurt am Main (Goethe University Frankfurt) (submittedVersion, cc-by)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
NKG2D, TGF-beta, NKG2D ligands, tumor surveillance, tumor microenvironment, natural killer cells, cytotoxic T lymphocytes, immune evasion, cancer immunotherapy
MeSH terms
Animals, Humans, Transforming Growth Factor beta, Tumor Escape, NK Cell Lectin-Like Receptor Subfamily K, Tumor Microenvironment

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