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Techniques to Induce and Quantify Cellular Senescence
Published on: May 1, 2017
Dual role of MIF in aging and cellular senescence
Abdullah Altulea1, Jamil Nehme1, Marco Demaria1
1European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, the Netherlands.
Abstract:
Macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine that bridges innate immunity, cellular senescence and age‑related pathology. In this review, we describe the unique secretion mechanisms, compartment‑specific signaling, and redox‑dependent conformational states that MIF has in different contexts. We detail how extracellular MIF amplifies chronic inflammation through CD74, CXCR2/4 and NF‑κB, while intracellular MIF sustains proliferation, DNA repair, and autophagy by antagonizing p53. We also highlight oxidized MIF as an emerging marker with unique relevance in age-related diseases. Through systematic comparison of evidence from cardiovascular, neurodegenerative, musculoskeletal and pulmonary disease studies, this review reveals context‑dependent protective versus deleterious outcomes of MIF signaling. The nature of MIF and its involvement in age-related diseases makes it a challenging yet intriguing therapeutic target.
Insights
Macrophage migration inhibitory factor (MIF) is a key cytokine in immunity and aging. Its dual roles in inflammation and cell survival present a complex therapeutic target for age-related diseases.
Area of Science:
- Immunology
- Cellular Biology
- Pathology
Background:
- Macrophage migration inhibitory factor (MIF) is a pleiotropic cytokine involved in innate immunity, cellular senescence, and age-related diseases.
- MIF exhibits unique secretion mechanisms, compartment-specific signaling, and redox-dependent conformational states.
Purpose of the Study:
- To review the multifaceted roles of MIF in various biological contexts and age-related pathologies.
- To elucidate the distinct functions of extracellular and intracellular MIF.
- To highlight oxidized MIF as a potential biomarker in aging.
Main Methods:
- Systematic review of evidence from cardiovascular, neurodegenerative, musculoskeletal, and pulmonary disease studies.
- Analysis of MIF's signaling pathways, including CD74, CXCR2/4, NF-κB, and p53 interactions.
- Examination of MIF's redox-dependent conformational states.
Main Results:
- Extracellular MIF promotes chronic inflammation via CD74, CXCR2/4, and NF-κB.
- Intracellular MIF supports proliferation, DNA repair, and autophagy by antagonizing p53.
- Oxidized MIF is identified as a relevant marker in age-related diseases.
- MIF signaling demonstrates context-dependent protective or deleterious effects across different diseases.
Conclusions:
- MIF's complex and context-dependent functions make it a challenging therapeutic target for age-related diseases.
- Understanding MIF's distinct signaling pathways and conformational states is crucial for therapeutic development.
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