Cited by 237Inflammasome and immune disordersImmune Response and InflammationAntifungal resistance and susceptibility

ZBP1 promotes fungi-induced inflammasome activation and pyroptosis, apoptosis, and necroptosis (PANoptosis)

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Banoth, Balaji, Tuladhar, Shraddha, Karki, Rajendra, Sharma, Bhesh Raj, Briard, Benoit, Kesavardhana, Sannula, Burton, Amanda, Kanneganti, Thirumala-Devi·2020·Journal of Biological Chemistry

Abstract

Candida albicans and Aspergillus fumigatus are dangerous fungal pathogens with high morbidity and mortality, particularly in immunocompromised patients. Innate immune-mediated programmed cell death (pyroptosis, apoptosis, necroptosis) is an integral part of host defense against pathogens. Inflammasomes, which are canonically formed upstream of pyroptosis, have been characterized as key mediators of fungal sensing and drivers of proinflammatory responses. However, the specific cell death pathways and key upstream sensors activated in the context of Candida and Aspergillus infections are unknown. Here, we report that C. albicans and A. fumigatus infection induced inflammatory programmed cell death in the form of pyroptosis, apoptosis, and necroptosis (PANoptosis). Further, we identified the innate immune sensor Z-DNA binding protein 1 (ZBP1) as the apical sensor of fungal infection responsible for activating the inflammasome/pyroptosis, apoptosis, and necroptosis. The Zα2 domain of ZBP1 was required to promote this inflammasome activation and PANoptosis. Overall, our results demonstrate that C. albicans and A. fumigatus induce PANoptosis and that ZBP1 plays a vital role in inflammasome activation and PANoptosis in response to fungal pathogens.

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Crossref · 10.1074/jbc.ra120.015924

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  • Cytokines or PAMPs trigger the assembly of a multiprotein complex called the PANoptosome.

    “Cytokines or PAMPs trigger the assembly of a multiprotein complex called the PANoptosome.”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [271]

    The Discussion says that C. albicans and A. fumigatus activate the ZBP1-PANoptosome, and the paper describes the PANoptosome as a molecular scaffold of interacting proteins. It does not establish that cytokines trigger its assembly; it treats cytokine release as a downstream effect. The Discussion also says fungal PAMPs could potentially be ZBP1 ligands, but whether isolated fungal ligands trigger PANoptosis remains an open question. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • The PANoptosome includes various molecules necessary for the activation of downstream programmed cell death (PCD) effectors such as GSDMD, GSDME, CASP3/7, and MLKL.

    “This complex includes various molecules necessary for the activation of downstream programmed cell death (PCD) effectors such as GSDMD, GSDME, CASP3/7, and MLKL (Fig. 4).”
  • PANoptosis is a united modality of inflammatory programmed cell death, accompanied by markers of apoptosis, necrosis, and pyroptosis pathways.

    “PANoptosis, is a united modality of inflammatory programmed cell death, accompanied by markers of apoptosis, necrosis, and pyroptosis pathways.271–275”

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Authors
Banoth, B., Tuladhar, S., Karki, R., Sharma, B. R., Briard, B., Kesavardhana, S., Burton, A., & Kanneganti, T.-D.
Affiliations
St. Jude Children's Research Hospital (US)
Corresponding author
Kanneganti, Thirumala-Devi
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2020-12
Volume
295
Issue
52
Pages
18276-18283
ISSN
0021-9258 (ISSN-L)
OpenAlex
W3096272935
Cited by
237
References
47
Citations by year
2026: 40 · 2025: 61 · 2024: 38 · 2023: 36 · 2022: 42 · 2021: 19 · 2020: 1
FWCI
7.95
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • HHS | National Institutes of Health (AI101935, AI124346, AR056296, CA253095)
  • American Lebanese Syrian Associated Charities (N/A)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Inflammasome and immune disorders
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
Keywords
ZBP1, PANoptosis, pyroptosis, apoptosis, necroptosis, inflammasome activation, Candida albicans, Aspergillus fumigatus, fungal infection, innate immune recognition, programmed cell death
MeSH terms
Pyroptosis, Necroptosis, Animals, Fungi, Humans, Inflammation, Macrophages, Mice, Inbred C57BL, RNA-Binding Proteins, Apoptosis, Mice, Inflammasomes

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