Cited by 236Wound Healing and TreatmentsProtein Tyrosine PhosphatasesImmune cells in cancer

p38/MKP-1–regulated AKT coordinates macrophage transitions and resolution of inflammation during tissue repair

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Perdiguero, Eusebio, Sousa-Victor, Pedro, Ruiz-Bonilla, Vanessa, Jardí, Mercè, Caelles, Carme, Serrano, Antonio L., Muñoz-Cánoves, Pura·2011·Journal of Cell Biology

Abstract

Repair of damaged tissue requires the coordinated action of inflammatory and tissue-specific cells to restore homeostasis, but the underlying regulatory mechanisms are poorly understood. In this paper, we report new roles for MKP-1 (mitogen-activated protein kinase [MAPK] phosphatase-1) in controlling macrophage phenotypic transitions necessary for appropriate muscle stem cell–dependent tissue repair. By restricting p38 MAPK activation, MKP-1 allows the early pro- to antiinflammatory macrophage transition and the later progression into a macrophage exhaustion-like state characterized by cytokine silencing, thereby permitting resolution of inflammation as tissue fully recovers. p38 hyperactivation in macrophages lacking MKP-1 induced the expression of microRNA-21 (miR-21), which in turn reduced PTEN (phosphatase and tensin homologue) levels, thereby extending AKT activation. In the absence of MKP-1, p38-induced AKT activity anticipated the acquisition of the antiinflammatory gene program and final cytokine silencing in macrophages, resulting in impaired tissue healing. Such defects were reversed by temporally controlled p38 inhibition. Conversely, miR-21–AKT interference altered homeostasis during tissue repair. This novel regulatory mechanism involving the appropriate balance of p38, MKP-1, miR-21, and AKT activities may have implications in chronic inflammatory degenerative diseases.

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Crossref · 10.1083/jcb.201104053

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  • The timing of inflammatory responses can strongly influence the kinetics and extent of muscle regeneration.

    “These studies showed that the timing of inflammatory responses can have profound effects on the kinetics and extent of regeneration69, findings confirmed by experiments using antibodies to block inflammatory cytokines70,71.”
  • One intracellular signaling pathway controlling the phenotypic switch involves p38 and miR-21.

    “One of the intracellular signaling pathways controlling the phenotypic switch involves p38 and miR-21.99,100”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [100]

  • In a muscle repair system, p38 activity is controlled by MKP-1, which it induces in a feedback loop.

    “In a study of a muscle repair system, Perdiguero et al. showed that the activity of p38 is controlled by mitogen-activated kinase phosphatase-1 (MKP-1), which it induces in a feedback loop.99,100”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [100]

  • This process leads over some days to a general reduction in cytokine secretion that is probably important for the ultimate resolution of the macrophage phase of wound healing.

    “It also leads, over some days, to a general reduction in cytokine secretion that is probably important for the ultimate resolution of the macrophage phase of wound healing.99,100”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [100]

  • p38 induces miR-21, one of whose targets is PTEN.

    “It also induces miR-21, one of whose targets is phosphatase with a tensin motif (PTEN).”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [100]

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Authors
Perdiguero, E., Sousa-Victor, P., Ruiz-Bonilla, V., Jardí, M., Caelles, C., Serrano, A. L., & Muñoz-Cánoves, P.
Affiliations
  • Universitat Pompeu Fabra (ES)
  • Cell Biology Group, Department of Experimental and Health Sciences, Pompeu Fabra University, and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, 08003 Barcelona, Spain 1
  • Biomedical Research Institute, Barcelona Science Park, 08028 Barcelona, Spain 2
Venue
Journal of Cell Biology
Published
2011-10-10
Volume
195
Issue
2
Pages
307-322
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2109401262
Cited by
236
References
50
Citations by year
2026: 9 · 2025: 6 · 2024: 10 · 2023: 13 · 2022: 14 · 2021: 24 · 2020: 20 · 2019: 21 · 2018: 19 · 2017: 17 · 2016: 17 · 2015: 20 · 2014: 16 · 2013: 19 · 2012: 10
FWCI
14.91
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • Dipòsit Digital de la Universitat de Barcelona (Universitat de Barcelona) (publishedVersion)
  • Repositori digital de la UPF (Universitat Pompeu Fabra) (submittedVersion, cc-by-nc-sa)
  • RECERCAT (Consorci de Serveis Universitaris de Catalunya) (submittedVersion, other-oa)
  • RECERCAT (Consorci de Serveis Universitaris de Catalunya) (submittedVersion, public-domain)
Funders
  • Muscular Dystrophy Association
  • European Commission
  • Ministerio de Ciencia e Innovación (PLE2009)
  • Fundação para a Ciência e a Tecnologia
Topics
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
MKP-1, p38 MAPK, Akt signaling, macrophage polarization, inflammation resolution, tissue repair, muscle stem cells, miR-21, PTEN, chronic inflammation
MeSH terms
Animals, Gene Expression Regulation, Inflammation, Macrophages, Wound Healing, Cytokines, MicroRNAs, p38 Mitogen-Activated Protein Kinases, Proto-Oncogene Proteins c-akt, PTEN Phosphohydrolase, Mice, Dual Specificity Phosphatase 1

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