Cited by 997Genetics, Aging, and Longevity in Model OrganismsPhagocytosis and Immune RegulationAdvanced Glycation End Products research

Inflammaging and ‘Garb-aging’

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Franceschi, Claudio, Garagnani, Paolo, Vitale, Giovanni, Capri, Miriam, Salvioli, Stefano·2017·Trends in Endocrinology & Metabolism

Abstract

'Inflammaging' refers to the chronic, low-grade inflammation that characterizes aging. Inflammaging is macrophage centered, involves several tissues and organs, including the gut microbiota, and is characterized by a complex balance between pro- and anti-inflammatory responses. Based on literature data, we argue that the major source of inflammatory stimuli is represented by endogenous/self, misplaced, or altered molecules resulting from damaged and/or dead cells and organelles (cell debris), recognized by receptors of the innate immune system. While their production is physiological and increases with age, their disposal by the proteasome via autophagy and/or mitophagy progressively declines. This 'autoreactive/autoimmune' process fuels the onset or progression of chronic diseases that can accelerate and propagate the aging process locally and systemically. Consequently, inflammaging can be considered a major target for antiaging strategies.

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Crossref · 10.1016/j.tem.2016.09.005

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  • The production of inflammatory cell death modalities and endogenous molecular garbage, such as mitochondrial RNA, misplaced molecules, and cell debris, is a causal inflammatory stimulus that can accelerate inflammaging.

    “A newly developed conception, garb-aging, reveals that the production of inflammatory cell death modalities, endogenous molecular garbage (e.g., mitochondrial RNA, misplaced molecules, and cell debris), is a causal inflammatory stimuli that can accelerate inflammaging.227,228”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [227]

    In “Where do the stimuli fuelling inflammaging come from?” (page unavailable), the authors argue that an age-related imbalance between the production and disposal of cell debris and misplaced self-molecules fuels inflammaging. The paper discusses mitochondrial DNA as an inflammatory stimulus, not mitochondrial RNA, and the passages do not identify inflammatory cell-death modalities as such a stimulus. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • The local low-grade inflammation that characterizes aging is triggered by senescent cells and is intimately related to age-related diseases such as cardiovascular diseases and cancer.

    “Of note, the local low-grade inflammation that characterizes aging is triggered by senescent cells and is intimately related to age-related diseases such as cardiovascular diseases and cancer (5, 291, 292).”

    From IL-6 in inflammation, autoimmunity and cancer (2021) · cites this paper as [292]

    The section “Aging is characterized by chronic low-grade inflammation” links inflammaging to age-related diseases, including cardiovascular disease and cancer. Box 4 says senescent cells may contribute to chronic inflammation through their pro-inflammatory secretions, while “Where do the stimuli fuelling inflammaging come from?” emphasizes cellular debris and altered self-molecules. The claim overstates the evidence by saying the inflammation is triggered by senescent cells. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Modulating the body's inflammatory balance is expected to increase longevity and reverse or mitigate age-related disease processes.

    “modulating the body’s inflammatory balance is expected to increase longevity and reverse or mitigate age-related disease processes.472–474”
  • Systemic chronic inflammation is typically triggered by damage-associated molecular patterns without an acute infectious insult or pathogen-associated molecular pattern activation.

    “In contrast, SCI is typically triggered by DAMPs in the absence of an acute infectious insult or activation of PAMPs30–32.”
  • Systemic chronic inflammation often increases with age, as older individuals have higher circulating cytokines, chemokines, acute phase proteins, and inflammatory gene expression.

    “SCI often increases with age30, as indicated by studies showing that older individuals have higher circulating levels of cytokines, chemokines and acute phase proteins, as well as greater expression of genes involved in inflammation1,19,30.”

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Authors
Franceschi, C., Garagnani, P., Vitale, G., Capri, M., & Salvioli, S.
Affiliations
  • University of Bologna (IT)
  • University of Milan (IT)
Corresponding author
Capri, Miriam
Venue
Trends in Endocrinology & Metabolism
Publisher
Elsevier BV
Published
2017-03
Volume
28
Issue
3
Pages
199-212
ISSN
1043-2760 (ISSN-L)
OpenAlex
W2532576306
Cited by
997
References
112
Citations by year
2026: 98 · 2025: 118 · 2024: 120 · 2023: 99 · 2022: 122 · 2021: 138 · 2020: 106 · 2019: 86 · 2018: 66 · 2017: 38 · 2016: 3 · 2013: 1
FWCI
6.50
Type
journal article
Language
en
Open access
Locations
  • Trends in Endocrinology and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion, cc-by-nc-nd)
Funders
  • EU Joint Programme – Neurodegenerative Disease Research
  • European Commission (266486, EU-FP7, H2020, 634821)
  • Università di Bologna
  • Horizon 2020 Framework Programme (634821)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
Keywords
inflammaging, aging, low-grade inflammation, macrophages, gut microbiota, cell debris, innate immune receptors, autophagy, mitophagy, proteasome, autoimmunity, chronic disease
MeSH terms
Animals, Autophagy, Humans, Inflammation, Mitochondria, Proteasome Endopeptidase Complex

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