Cited by 233Inflammasome and immune disordersAdenosine and Purinergic SignalingSepsis Diagnosis and Treatment

P2X7 receptor induces mitochondrial failure in monocytes and compromises NLRP3 inflammasome activation during sepsis

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Martínez-García, Juan José, Martínez-Banaclocha, Helios, Angosto-Bazarra, Diego, de Torre-Minguela, Carlos, Baroja-Mazo, Alberto, Alarcón-Vila, Cristina, Martínez-Alarcón, Laura, Amores-Iniesta, Joaquín +13 more·2019·Nature Communications

Abstract

Sepsis is characterized by a systemic inflammatory response followed by immunosuppression of the host. Metabolic defects and mitochondrial failure are common in immunocompromised patients with sepsis. The NLRP3 inflammasome is important for establishing an inflammatory response after activation by the purinergic P2X7 receptor. Here, we study a cohort of individuals with intra-abdominal origin sepsis and show that patient monocytes have impaired NLRP3 activation by the P2X7 receptor. Furthermore, most sepsis-related deaths are among patients whose NLRP3 activation is profoundly altered. In monocytes from sepsis patients, the P2X7 receptor is associated with mitochondrial dysfunction. Furthermore, activation of the P2X7 receptor results in mitochondrial damage, which in turn inhibits NLRP3 activation by HIF-1α. We show that mortality increases in a mouse model of sepsis when the P2X7 receptor is activated in vivo. These data reveal a molecular mechanism initiated by the P2X7 receptor that contributes to NLRP3 impairment during infection.

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  • P2X7 receptor modulates acute and chronic infection, inflammatory diseases, sepsis, neuropathic pain, and T-cell activation.

    “It was already reported its capacity to modulate acute and chronic infection [81, 82], inflammatory diseases [82], sepsis [83, 84], neuropathic pain [85], and T-cell activation [86].”

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Authors
Martínez-García, J. J., Martínez-Banaclocha, H., Angosto-Bazarra, D., de Torre-Minguela, C., Baroja-Mazo, A., Alarcón-Vila, C., Martínez-Alarcón, L., Amores-Iniesta, J., Martín-Sánchez, F., Ercole, G. A., Martínez, C. M., González-Lisorge, A., Fernández-Pacheco, J., Martínez-Gil, P., Adriouch, S., Koch-Nolte, F., Luján, J., Acosta-Villegas, F., Parrilla, P., García-Palenciano, C., & Pelegrin, P.
Affiliations
  • Instituto Murciano de Investigación Biosanitaria (ES)
  • Hospital Universitario Virgen de la Arrixaca (ES)
  • Inserm (FR)
Venue
Nature Communications
Published
2019-06-20
Volume
10
Issue
1
Pages
2711-2711
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2952125019
Cited by
233
References
63
Citations by year
2026: 16 · 2025: 16 · 2024: 44 · 2023: 48 · 2022: 39 · 2021: 34 · 2020: 33 · 2019: 3
FWCI
9.01
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Hispana (publishedVersion, cc-by)
  • HAL (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Institute for Research in Biomedicine
  • Ablynx
  • European Cooperation in Science and Technology (BM-1406)
  • Ministerio de Economía y Competitividad (FJCI-2014-22041, PI13/00174, CD13/00059)
  • Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España (SAF2017‐88276‐R)
  • European Regional Development Fund (PI13/00174)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Adenosine and Purinergic Signaling
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
Keywords
P2X7 receptor, NLRP3 inflammasome, mitochondrial dysfunction, monocytes, sepsis, HIF-1α, purinergic signaling, immunosuppression, sepsis mortality, abdominal sepsis, mouse sepsis model
MeSH terms
NLR Family, Pyrin Domain-Containing 3 Protein, Adult, Aged, Aged, 80 and over, Animals, Disease Models, Animal, Female, Follow-Up Studies, Humans, Macrophages, Male, Middle Aged, Mitochondria, Monocytes, Up-Regulation, Sepsis, Mice, Hypoxia-Inducible Factor 1, alpha Subunit, Receptors, Purinergic P2X7, Inflammasomes, Mitochondrial Dynamics

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