Cited by 84Immune cells in cancerTelomeres, Telomerase, and SenescenceMesenchymal stem cell research

Myeloid-derived suppressor cells (MDSC): an important partner in cellular/tissue senescence

Salminen, Antero, Kauppinen, Anu, Kaarniranta, Kai·2018·Biogerontology

Abstract

The aging process is associated with a low-grade chronic inflammation and the accumulation of senescent cells into tissues. Diverse stresses can trigger cellular senescence, a cell fate characterized by cell-cycle arrest and flat morphology. Oncogenic signaling can also induce cellular senescence which has been termed oncogene-induced senescence (OIS). Senescent cells display a pro-inflammatory phenotype which has been called the senescence-associated secretory phenotype (SASP). The secretomes associated with SASP contain colony-stimulating factors and chemokines which stimulate the generation of myeloid-derived suppressor cells (MDSC) by enhancing myelopoiesis in bone marrow and spleen. Enhanced myelopoiesis and increased level of MDSCs have been observed in bone marrow, spleen, and blood in both tumor-bearing and aged mice. Immunosuppressive MDSCs are recruited via chemotaxis into inflamed tissues where they proliferate and consequently suppress acute inflammatory reactions by inhibiting the functions of distinct components of innate and adaptive immunity. For instance, MDSCs stimulate the activity of immunosuppressive regulatory T-cells (Tregs). They also increase the expression of amino acid catabolizing enzymes and the secretion of anti-inflammatory cytokines, e.g. IL-10 and TGF-β, and reactive oxygen species (ROS). On the other hand, the accumulation of MDSCs into tissues exerts harmful effects in chronic pathological disorders, e.g. tumors and many age-related diseases, since the immunosuppression induced by MDSCs impairs the clearance of senescent and cancer cells and also disturbs the maintenance of energy metabolism and tissue proteostasis. The co-operation between senescent cells and immunosuppressive MDSCs regulates not only tumorigenesis and chronic inflammatory disorders but it also might promote inflammaging during the aging process.

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Crossref · 10.1007/s10522-018-9762-8

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  • Many factors in the tumor microenvironment, including cAMP, glucose competition, and oncogenic stress, can induce senescence of T cells, macrophages, natural killer cells, and dendritic cells.

    “The role of immunosenescence in tumors is sophisticated: the many factors involved include cAMP, glucose competition, and oncogenic stress in the tumor microenvironment, which can induce the senescence of T cells, macrophages, natural killer cells, and dendritic cells.”

    From Immunosenescence: a key player in cancer development (2020) · cites this paper as [58]

  • Tumor cells activate the PKA-CREB and P38 pathways by producing cAMP, thereby causing DNA damage and senescence of T cells.

    “In addition, tumor cells activate the PKA-CREB and P38 pathways by producing cAMP, thereby causing DNA damage and senescence of T cells [51, 53, 58–63].”

    From Immunosenescence: a key player in cancer development (2020) · cites this paper as [58]

  • Increased levels of myeloid-derived suppressor cells are observed in the bone marrow, blood, and spleen of tumor-bearing aged mice; this accumulation plays a detrimental role because MDSC-induced immunosuppression impairs senescence and tumor cell clearance and interferes with energy metabolism and maintenance of tissue protein homeostasis.

    “Furthermore, increased levels of myeloid-derived suppressor cells (MDSCs) are observed in the bone marrow, blood, and spleen of tumor-bearing aged mice; this accumulation plays a detrimental role because MDSC-induced immunosuppression impairs senescence and tumor cell clearance and interferes with energy metabolism and maintenance of tissue protein homeostasis [58].”

    From Immunosenescence: a key player in cancer development (2020) · cites this paper as [58]

  • SASP-expressing senescent cells secrete chemokines and cytokines, which recruit MDSCs to local regions and result in immune escape and tumor cell metastasis.

    “SASP-expressing senescent cells secrete several kinds of chemokines and cytokines, which recruit MDSCs to local regions and result in immune escape and tumor cell metastasis [58].”

    From Immunosenescence: a key player in cancer development (2020) · cites this paper as [58]

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Authors
Salminen, A., Kauppinen, A., & Kaarniranta, K.
Affiliations
University of Eastern Finland (FI)
Corresponding author
Salminen, Antero
Venue
Biogerontology
Published
2018-06-29
Volume
19
Issue
5
Pages
325-339
ISSN
  • 1389-5729 (ISSN-L)
  • 1573-6768
OpenAlex
W2810097944
Cited by
84
References
151
Citations by year
2026: 8 · 2025: 11 · 2024: 18 · 2023: 8 · 2022: 13 · 2021: 11 · 2020: 12 · 2019: 2 · 2018: 1
FWCI
0.67
Type
journal article
Language
en
Open access
closed
Locations
  • Biogerontology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Terveyden Tutkimuksen Toimikunta (AK297267, AK307341, KK296840)
  • Kuopion Yliopistollinen Sairaala (KK5503743)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
myeloid-derived suppressor cells, cellular senescence, tissue senescence, inflammaging, senescence-associated secretory phenotype, oncogene-induced senescence, myelopoiesis, immunosuppression, regulatory T cells, IL-10, TGF-beta, reactive oxygen species, chronic inflammation, age-related diseases, tumor immunosuppression, energy metabolism, proteostasis
MeSH terms
Myeloid-Derived Suppressor Cells, Aging, Humans, Inflammation, Signal Transduction, Cellular Senescence, Oxidative Stress

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