Abstract
Innate immunity, cell death and inflammation underpin many aspects of health and disease. Upon sensing pathogens, pathogen-associated molecular patterns or damage-associated molecular patterns, the innate immune system activates lytic, inflammatory cell death, such as pyroptosis and PANoptosis. These genetically defined, regulated cell death pathways not only contribute to the host defence against infectious disease, but also promote pathological manifestations leading to cancer and inflammatory diseases. Our understanding of the underlying mechanisms has grown rapidly in recent years. However, how dying cells, cell corpses and their liberated cytokines, chemokines and inflammatory signalling molecules are further sensed by innate immune cells, and their contribution to further amplify inflammation, trigger antigen presentation and activate adaptive immunity, is less clear. Here, we discuss how pattern-recognition and PANoptosome sensors in innate immune cells recognize and respond to cell-death signatures. We also highlight molecular targets of the innate immune response for potential therapeutic development.
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References
Man, S. M. et al. Molecular mechanisms and functions of pyroptosis inflammatory caspases and inflammasomes in infectious diseases. Immunol. Rev. 277, 61â75 (2017).
Kayagaki, N. et al. Caspase-11 cleaves gasdermin D for non-canonical inflammasome signalling. Nature 526, 666â671 (2015).
Shi, J. et al. Cleavage of GSDMD by inflammatory caspases determines pyroptotic cell death. Nature 526, 660â665 (2015).
Christgen, S. et al. Identification of the PANoptosome: a molecular platform triggering pyroptosis, apoptosis, and necroptosis (PANoptosis). Front. Cell Infect. Microbiol. 10, 237 (2020).
Pandeya, A. & Kanneganti, T.-D. Therapeutic potential of PANoptosis: innate sensors inflammasomes and RIPKs in PANoptosomes. Trends Mol. Med. 30, 74â88 (2024).
Degterev, A. et al. Chemical inhibitor of nonapoptotic cell death with therapeutic potential for ischemic brain injury. Nat. Chem. Biol. 1, 112â119 (2005).
Cho, Y. S. et al. Phosphorylation-driven assembly of the RIP1-RIP3 complex regulates programmed necrosis and virus-induced inflammation. Cell 137, 1112â1123 (2009).
He, S. et al. Receptor interacting protein kinase-3 determines cellular necrotic response to TNF-alpha. Cell 137, 1100â1111 (2009).
Zhang, D. W. et al. RIP3, an energy metabolism regulator that switches TNF-induced cell death from apoptosis to necrosis. Science 325, 332â336 (2009).
Sun, L. et al. Mixed lineage kinase domain-like protein mediates necrosis signaling downstream of RIP3 kinase. Cell 148, 213â227 (2012).
Zhao, J. et al. Mixed lineage kinase domain-like is a key receptor interacting protein 3 downstream component of TNF-induced necrosis. Proc. Natl Acad. Sci. USA 109, 5322â5327 (2012).
Choudhury, S. M., Sarkar, R., Karki, R. & Kanneganti, T. D. A comparative study of apoptosis, pyroptosis, necroptosis, and PANoptosis components in mouse and human cells. PLoS One 19, e0299577 (2024).
Han, J. H. et al. NINJ1 mediates inflammatory cell death, PANoptosis, and lethality during infection conditions and heat stress. Nat. Commun. 15, 1739 (2024).
Rock, K. L. & Kono, H. The inflammatory response to cell death. Annu Rev. Pathol. 3, 99â126 (2008).
Li, Y. et al. cGLRs are a diverse family of pattern recognition receptors in innate immunity. Cell 186, 3261â3276.e3220 (2023).
Kuriakose, T. et al. ZBP1/DAI is an innate sensor of influenza virus triggering the NLRP3 inflammasome and programmed cell death pathways. Sci. Immunol. 1, aag2045 (2016).
Karki, R. & Kanneganti, T. D. ADAR1 and ZBP1 in innate immunity, cell death, and disease. Trends Immunol. 44, 201â216 (2023).
Gong, T., Liu, L., Jiang, W. & Zhou, R. DAMP-sensing receptors in sterile inflammation and inflammatory diseases. Nat. Rev. Immunol. 20, 95â112 (2020).
Perregaux, D. & Gabel, C. A. Interleukin-1 beta maturation and release in response to ATP and nigericin. Evidence that potassium depletion mediated by these agents is a necessary and common feature of their activity. J. Biol. Chem. 269, 15195â15203 (1994).
Solle, M. et al. Altered cytokine production in mice lacking P2X(7) receptors. J. Biol. Chem. 276, 125â132 (2001).
Mariathasan, S. et al. Cryopyrin activates the inflammasome in response to toxins and ATP. Nature 440, 228â232 (2006).
McDonald, B. et al. Intravascular danger signals guide neutrophils to sites of sterile inflammation. Science 330, 362â366 (2010).
Kataoka, H., Kono, H., Patel, Z., Kimura, Y. & Rock, K. L. Evaluation of the contribution of multiple DAMPs and DAMP receptors in cell death-induced sterile inflammatory responses. PLoS One 9, e104741 (2014).
Karki, R. et al. Synergism of TNF-alpha and IFN-gamma triggers inflammatory cell death, tissue damage, and mortality in SARS-CoV-2 infection and cytokine shock syndromes. Cell 184, 149â168.e117 (2021).
Simpson, D. S. et al. Interferon-gamma primes macrophages for pathogen ligand-induced killing via a caspase-8 and mitochondrial cell death pathway. Immunity 55, 423â441 e429 (2022).
Kono, H., Karmarkar, D., Iwakura, Y. & Rock, K. L. Identification of the cellular sensor that stimulates the inflammatory response to sterile cell death. J. Immunol. 184, 4470â4478 (2010).
Place, D. E. & Kanneganti, T. D. Cell death-mediated cytokine release and its therapeutic implications. J. Exp. Med. 216, 1474â1486 (2019).
Kanneganti, T. D. Intracellular innate immune receptors: life inside the cell. Immunol. Rev. 297, 5â12 (2020).
Man, S. M. & Jenkins, B. J. Context-dependent functions of pattern recognition receptors in cancer. Nat. Rev. Cancer 22, 397â413 (2022).
Kawai, T., Ikegawa, M., Ori, D. & Akira, S. Decoding Toll-like receptors: recent insights and perspectives in innate immunity. Immunity 57, 649â673 (2024).
Mullick, A. E., Tobias, P. S. & Curtiss, L. K. Modulation of atherosclerosis in mice by Toll-like receptor 2. J. Clin. Invest. 115, 3149â3156 (2005).
Michelsen, K. S. et al. Lack of Toll-like receptor 4 or myeloid differentiation factor 88 reduces atherosclerosis and alters plaque phenotype in mice deficient in apolipoprotein E. Proc. Natl Acad. Sci. USA 101, 10679â10684 (2004).
Termeer, C. et al. Oligosaccharides of Hyaluronan activate dendritic cells via toll-like receptor 4. J. Exp. Med. 195, 99â111 (2002).
Jiang, D. et al. Regulation of lung injury and repair by Toll-like receptors and hyaluronan. Nat. Med. 11, 1173â1179 (2005).
Allam, R. et al. Histones from dying renal cells aggravate kidney injury via TLR2 and TLR4. J. Am. Soc. Nephrol. 23, 1375â1388 (2012).
Wilson, A. S. et al. Neutrophil extracellular traps and their histones promote Th17 cell differentiation directly via TLR2. Nat. Commun. 13, 528 (2022).
Urbonaviciute, V. et al. Induction of inflammatory and immune responses by HMGB1-nucleosome complexes: implications for the pathogenesis of SLE. J. Exp. Med. 205, 3007â3018 (2008).
Kim, S. et al. Carcinoma-produced factors activate myeloid cells through TLR2 to stimulate metastasis. Nature 457, 102â106 (2009).
Shi, H. et al. TLR4 links innate immunity and fatty acid-induced insulin resistance. J. Clin. Invest. 116, 3015â3025 (2006).
Vogl, T. et al. Mrp8 and Mrp14 are endogenous activators of Toll-like receptor 4, promoting lethal, endotoxin-induced shock. Nat. Med. 13, 1042â1049 (2007).
Bhattacharyya, S. et al. FibronectinEDA promotes chronic cutaneous fibrosis through Toll-like receptor signaling. Sci. Transl. Med. 6, 232ra250 (2014).
Bhattacharyya, S. et al. Tenascin-C drives persistence of organ fibrosis. Nat. Commun. 7, 11703 (2016).
Gozzelino, R., Jeney, V. & Soares, M. P. Mechanisms of cell protection by heme oxygenase-1. Annu. Rev. Pharmacol. Toxicol. 50, 323â354 (2010).
Martins, R. & Knapp, S. Heme and hemolysis in innate immunity: adding insult to injury. Curr. Opin. Immunol. 50, 14â20 (2018).
Soares, M. P. & Bozza, M. T. Red alert: labile heme is an alarmin. Curr. Opin. Immunol. 38, 94â100 (2016).
Figueiredo, R. T. et al. Characterization of heme as activator of Toll-like receptor 4. J. Biol. Chem. 282, 20221â20229 (2007).
Min, H., Choi, B., Jang, Y. H., Cho, I. H. & Lee, S. J. Heme molecule functions as an endogenous agonist of astrocyte TLR2 to contribute to secondary brain damage after intracerebral hemorrhage. Mol. Brain 10, 27 (2017).
Sundaram, B. et al. NLRP12-PANoptosome activates PANoptosis and pathology in response to heme and PAMPs. Cell 186, 2783â2801.e2720 (2023).
Sundaram, B. et al. NLRC5 senses NAD+ depletion, forming a PANoptosome and driving PANoptosis and inflammation. Cell 187, 4061â4077.e1 (2024).
Cavassani, K. A. et al. TLR3 is an endogenous sensor of tissue necrosis during acute inflammatory events. J. Exp. Med. 205, 2609â2621 (2008).
Lande, R. et al. Plasmacytoid dendritic cells sense self-DNA coupled with antimicrobial peptide. Nature 449, 564â569 (2007).
Scaffidi, P., Misteli, T. & Bianchi, M. E. Release of chromatin protein HMGB1 by necrotic cells triggers inflammation. Nature 418, 191â195 (2002).
Tian, J. et al. Toll-like receptor 9âdependent activation by DNA-containing immune complexes is mediated by HMGB1 and RAGE. Nat. Immunol. 8, 487â496 (2007).
Ivanov, S. et al. A novel role for HMGB1 in TLR9-mediated inflammatory responses to CpG-DNA. Blood 110, 1970â1981 (2007).
Sirois, C. M. et al. RAGE is a nucleic acid receptor that promotes inflammatory responses to DNA. J. Exp. Med. 210, 2447â2463 (2013).
Imaeda, A. B. et al. Acetaminophen-induced hepatotoxicity in mice is dependent on Tlr9 and the Nalp3 inflammasome. J. Clin. Invest. 119, 305â314 (2009).
Gavin, A. L. et al. Cleavage of DNA and RNA by PLD3 and PLD4 limits autoinflammatory triggering by multiple sensors. Nat. Commun. 12, 5874 (2021).
Zhang, Q. et al. Circulating mitochondrial DAMPs cause inflammatory responses to injury. Nature 464, 104â107 (2010).
Hotz, M. J. et al. Red blood cells homeostatically bind mitochondrial DNA through TLR9 to maintain quiescence and to prevent lung injury. Am. J. Respir. Crit. Care Med. 197, 470â480 (2018).
Lam, L. K. M. et al. DNA binding to TLR9 expressed by red blood cells promotes innate immune activation and anemia. Sci. Transl. Med. 13, eabj1008 (2021).
Tuomela, J. et al. DNA from dead cancer cells induces TLR9-mediated invasion and inflammation in living cancer cells. Breast Cancer Res. Treat. 142, 477â487 (2013).
Kayagaki, N. et al. NINJ1 mediates plasma membrane rupture during lytic cell death. Nature 591, 131â136 (2021).
Rogers, C. et al. Cleavage of DFNA5 by caspase-3 during apoptosis mediates progression to secondary necrotic/pyroptotic cell death. Nat. Commun. 8, 14128 (2017).
Wang, Y. et al. Chemotherapy drugs induce pyroptosis through caspase-3 cleavage of a gasdermin. Nature 547, 99â103 (2017).
Lee, S. et al. AIM2 forms a complex with pyrin and ZBP1 to drive PANoptosis and host defence. Nature 597, 415â419 (2021).
Phulphagar, K. et al. Proteomics reveals distinct mechanisms regulating the release of cytokines and alarmins during pyroptosis. Cell Rep. 34, 108826 (2021).
Russo, A. J. et al. Intracellular immune sensing promotes inflammation via gasdermin Dâdriven release of a lectin alarmin. Nat. Immunol. 22, 154â165 (2021).
Tsuchiya, K. et al. Gasdermin D mediates the maturation and release of IL-1α downstream of inflammasomes. Cell Rep. 34, 108887 (2021).
Pruenster, M. et al. E-selectin-mediated rapid NLRP3 inflammasome activation regulates S100A8/S100A9 release from neutrophils via transient gasdermin D pore formation. Nat. Immunol. 24, 2021â2031 (2023).
Jiao, H. et al. ADAR1 averts fatal type I interferon induction by ZBP1. Nature 607, 776â783 (2022).
Hubbard, N. W. et al. ADAR1 mutation causes ZBP1-dependent immunopathology. Nature 607, 769â775 (2022).
Yan, W. T. et al. Do pyroptosis, apoptosis, and necroptosis (PANoptosis) exist in cerebral ischemia? Evidence from cell and rodent studies. Neural Regen. Res. 17, 1761â1768 (2022).
Ruixi, Z. et al. A new cell death program regulated by toll-like receptor 9 through p38 mitogen-activated protein kinase signaling pathway in a neonatal rat model with sepsis associated encephalopathy. Chin. Med. J. 135, 1474â1485 (2022).
Malireddi, R. K. S. et al. RIPK1 distinctly regulates Yersinia-induced inflammatory cell death, PANoptosis. Immunohorizons 4, 789â796 (2020).
Zheng, M., Karki, R., Vogel, P. & Kanneganti, T. D. Caspase-6 is a key regulator of innate immunity, inflammasome activation, and host defense. Cell 181, 674â687.e613 (2020).
Banoth, B. et al. ZBP1 promotes fungi-induced inflammasome activation and pyroptosis, apoptosis, and necroptosis (PANoptosis). J. Biol. Chem. 295, 18276â18283 (2020).
Sharma, B. R. & Kanneganti, T. D. NLRP3 inflammasome in cancer and metabolic diseases. Nat. Immunol. 22, 550â559 (2021).
Lu, A. et al. Unified polymerization mechanism for the assembly of ASC-dependent inflammasomes. Cell 156, 1193â1206 (2014).
Liu, Y. et al. Cryo-electron tomography of NLRP3-activated ASC complexes reveals organelle co-localization. Nat. Commun. 14, 7246 (2023).
Baroja-Mazo, A. et al. The NLRP3 inflammasome is released as a particulate danger signal that amplifies the inflammatory response. Nat. Immunol. 15, 738â748 (2014).
Franklin, B. S. et al. The adaptor ASC has extracellular and âprionoidâ activities that propagate inflammation. Nat. Immunol. 15, 727â737 (2014).
Iyer, S. S. et al. Necrotic cells trigger a sterile inflammatory response through the Nlrp3 inflammasome. Proc. Natl Acad. Sci. USA 106, 20388â20393 (2009).
Halle, A. et al. The NALP3 inflammasome is involved in the innate immune response to amyloid-beta. Nat. Immunol. 9, 857â865 (2008).
Masters, S. L. et al. Activation of the NLRP3 inflammasome by islet amyloid polypeptide provides a mechanism for enhanced IL-1β in type 2 diabetes. Nat. Immunol. 11, 897â904 (2010).
Babelova, A. et al. Biglycan, a danger signal that activates the NLRP3 inflammasome via toll-like and P2X receptors. J. Biol. Chem. 284, 24035â24048 (2009).
Martinon, F., Petrilli, V., Mayor, A., Tardivel, A. & Tschopp, J. Gout-associated uric acid crystals activate the NALP3 inflammasome. Nature 440, 237â241 (2006).
Duewell, P. et al. NLRP3 inflammasomes are required for atherogenesis and activated by cholesterol crystals. Nature 464, 1357â1361 (2010).
Wen, H. et al. Fatty acidâinduced NLRP3-ASC inflammasome activation interferes with insulin signaling. Nat. Immunol. 12, 408â415 (2011).
Huang, H. et al. Histones activate the NLRP3 inflammasome in Kupffer cells during sterile inflammatory liver injury. J. Immunol. 191, 2665â2679 (2013).
Shimada, K. et al. Oxidized mitochondrial DNA activates the NLRP3 inflammasome during apoptosis. Immunity 36, 401â414 (2012).
Cabral, A. et al. Differential binding of NLRP3 to non-oxidized and Ox-mtDNA mediates NLRP3 inflammasome activation. Commun. Biol. 6, 578 (2023).
Zhong, Z. et al. New mitochondrial DNA synthesis enables NLRP3 inflammasome activation. Nature 560, 198â203 (2018).
Kanneganti, T. D. et al. Bacterial RNA and small antiviral compounds activate caspase-1 through cryopyrin/Nalp3. Nature 440, 233â236 (2006).
Kanneganti, T. D. et al. Critical role for Cryopyrin/Nalp3 in activation of caspase-1 in response to viral infection and double-stranded RNA. J. Biol. Chem. 281, 36560â36568 (2006).
Su, M. et al. Gasdermin D-dependent platelet pyroptosis exacerbates NET formation and inflammation in severe sepsis. Nat. Cardiovasc. Res. 1, 732â747 (2022).
Ghiringhelli, F. et al. Activation of the NLRP3 inflammasome in dendritic cells induces IL-1βâdependent adaptive immunity against tumors. Nat. Med. 15, 1170â1178 (2009).
Dalbeth, N. et al. Gout. Nat. Rev. Dis. Prim. 5, 69 (2019).
Rashidi, M. et al. The pyroptotic cell death effector gasdermin D is activated by gout-associated uric acid crystals but is dispensable for cell death and IL-1β release. J. Immunol. 203, 736â748 (2019).
Zhong, C. S. et al. Gout-associated monosodium urate crystal-induced necrosis is independent of NLRP3 activity but can be suppressed by combined inhibitors for multiple signaling pathways. Acta Pharmacol. Sin. 43, 1324â1336 (2022).
Kluck, V. et al. Dapansutrile, an oral selective NLRP3 inflammasome inhibitor, for treatment of gout flares: an open-label, dose-adaptive, proof-of-concept, phase 2a trial. Lancet Rheumatol. 2, e270âe280 (2020).
Edgeworth, J., Gorman, M., Bennett, R., Freemont, P. & Hogg, N. Identification of p8,14 as a highly abundant heterodimeric calcium binding protein complex of myeloid cells. J. Biol. Chem. 266, 7706â7713 (1991).
van Zoelen, M. A. et al. Expression and role of myeloid-related protein-14 in clinical and experimental sepsis. Am. J. Respir. Crit. Care Med. 180, 1098â1106 (2009).
Rathinam, V. A. et al. The AIM2 inflammasome is essential for host defense against cytosolic bacteria and DNA viruses. Nat. Immunol. 11, 395â402 (2010).
Fernandes-Alnemri, T. et al. The AIM2 inflammasome is critical for innate immunity to Francisella tularensis. Nat. Immunol. 11, 385â393 (2010).
Karki, R. et al. Concerted activation of the AIM2 and NLRP3 inflammasomes orchestrates host protection against Aspergillus infection. Cell Host Microbe 17, 357â368 (2015).
Dombrowski, Y. et al. Cytosolic DNA triggers inflammasome activation in keratinocytes in psoriatic lesions. Sci. Transl. Med. 3, 82ra38 (2011).
Naik, S. et al. Inflammatory memory sensitizes skin epithelial stem cells to tissue damage. Nature 550, 475â480 (2017).
Hu, B. et al. The DNA-sensing AIM2 inflammasome controls radiation-induced cell death and tissue injury. Science 354, 765â768 (2016).
Man, S. M. et al. Critical role for the DNA sensor AIM2 in stem cell proliferation and cancer. Cell 162, 45â58 (2015).
Wilson, J. E. et al. Inflammasome-independent role of AIM2 in suppressing colon tumorigenesis via DNA-PK and Akt. Nat. Med. 21, 906â913 (2015).
Schattgen, S. A., Gao, G., Kurt-Jones, E. A. & Fitzgerald, K. A. Cutting edge: DNA in the lung microenvironment during influenza virus infection tempers inflammation by engaging the DNA sensor AIM2. J. Immunol. 196, 29â33 (2016).
Zhang, H. et al. AIM2 inflammasome is critical for influenza-induced lung injury and mortality. J. Immunol. 198, 4383â4393 (2017).
Moriyama, M. et al. Influenza virus-induced oxidized DNA activates inflammasomes. iScience 23, 101270 (2020).
Lian, Q. et al. Chemotherapy-induced intestinal inflammatory responses are mediated by exosome secretion of double-strand DNA via AIM2 inflammasome activation. Cell Res. 27, 784â800 (2017).
Komada, T. et al. Macrophage uptake of necrotic cell DNA activates the AIM2 inflammasome to regulate a proinflammatory phenotype in CKD. J. Am. Soc. Nephrol. 29, 1165â1181 (2018).
Karki, R. et al. ZBP1-dependent inflammatory cell death, PANoptosis, and cytokine storm disrupt IFN therapeutic efficacy during coronavirus infection. Sci. Immunol. 7, eabo6294 (2022).
Karki, R. et al. ADAR1 restricts ZBP1-mediated immune response and PANoptosis to promote tumorigenesis. Cell Rep. 37, 109858 (2021).
Sharma, B. R., Karki, R., Rajesh, Y. & Kanneganti, T. D. Immune regulator IRF1 contributes to ZBP1-, AIM2-, RIPK1-, and NLRP12-PANoptosome activation and inflammatory cell death (PANoptosis). J. Biol. Chem. 299, 105141 (2023).
Malireddi, R. K. S. et al. Innate immune priming in the absence of TAK1 drives RIPK1 kinase activity-independent pyroptosis, apoptosis, necroptosis, and inflammatory disease. J. Exp. Med. 217, jem.20191644 (2020).
Malireddi, R. K. S. et al. TAK1 restricts spontaneous NLRP3 activation and cell death to control myeloid proliferation. J. Exp. Med. 215, 1023â1034 (2018).
Karki, R. et al. Interferon regulatory factor 1 regulates PANoptosis to prevent colorectal cancer. JCI Insight 5, e136720 (2020).
Malireddi, R. K. S. et al. Inflammatory cell death, PANoptosis, mediated by cytokines in diverse cancer lineages inhibits tumor growth. Immunohorizons 5, 568â580 (2021).
Geijtenbeek, T. B. & Gringhuis, S. I. C-type lectin receptors in the control of T helper cell differentiation. Nat. Rev. Immunol. 16, 433â448 (2016).
Chiba, S. et al. Recognition of tumor cells by Dectin-1 orchestrates innate immune cells for anti-tumor responses. eLife 3, e04177 (2014).
Daley, D. et al. Dectin 1 activation on macrophages by galectin 9 promotes pancreatic carcinoma and peritumoral immune tolerance. Nat. Med. 23, 556â567 (2017).
Matsumoto, M. et al. A novel LPS-inducible C-type lectin is a transcriptional target of NF-IL6 in macrophages. J. Immunol. 163, 5039â5048 (1999).
Ishikawa, E. et al. Direct recognition of the mycobacterial glycolipid, trehalose dimycolate, by C-type lectin Mincle. J. Exp. Med. 206, 2879â2888 (2009).
Yamaski, S. et al. C-type lectin Mincle is an activating rceptor for pathogenic fungus, Malassezia. Proc. Natl Acad. Sci. USA 106, 1897â1902 (2009).
Yamasaki, S. et al. Mincle is an ITAM-coupled activating receptor that senses damaged cells. Nat. Immunol. 9, 1179â1188 (2008).
Nagata, M. et al. Intracellular metabolite β-glucosylceramide is an endogenous Mincle ligand possessing immunostimulatory activity. Proc. Natl Acad. Sci. USA 114, E3285âE3294 (2017).
Memon, R. A. et al. Regulation of glycosphingolipid metabolism in liver during the acute phase response. J. Biol. Chem. 274, 19707â19713 (1999).
Brennan, P. J. et al. Invariant natural killer T cells recognize lipid self antigen induced by microbial danger signals. Nat. Immunol. 12, 1202â1211 (2011).
Stephens, M. et al. Mincle-binding DNA aptamer demonstrates therapeutic potential in a model of inflammatory bowel disease. Mol. Ther. Nucleic Acids 28, 935â947 (2022).
Seifert, L. et al. The necrosome promotes pancreatic oncogenesis via CXCL1 and Mincle-induced immune suppression. Nature 532, 245â249 (2016).
Colonna, M., Samaridis, J. & Angman, L. Molecular characterization of two novel C-type lectin-like receptors, one of which is selectively expressed in human dendritic cells. Eur. J. Immunol. 30, 697â704 (2000).
Sobanov, Y. et al. A novel cluster of lectin-like receptor genes expressed in monocytic, dendritic and endothelial cells maps close to the NK receptor genes in the human NK gene complex. Eur. J. Immunol. 31, 3493â3503 (2001).
Thebault, P. et al. The C-type lectin-like receptor CLEC-1, expressed by myeloid cells and endothelial cells, is up-regulated by immunoregulatory mediators and moderates T cell activation. J. Immunol. 183, 3099â3108 (2009).
Gao, S. et al. Histidine-rich glycoprotein inhibits high-mobility group box-1-mediated pathways in vascular endothelial cells through CLEC-1A. iScience 23, 101180 (2020).
Drouin, M. et al. CLEC-1 is a death sensor that limits antigen cross-presentation by dendritic cells and represents a target for cancer immunotherapy. Sci. Adv. 8, eabo7621 (2022).
Takahashi, Y. et al. Histidine-rich glycoprotein stimulates human neutrophil phagocytosis and prolongs survival through CLEC1A. J. Immunol. 206, 737â750 (2021).
Lai, J. J., Cruz, F. M. & Rock, K. L. Immune sensing of cell death through recognition of histone sequences by C-type lectin-receptor-2d causes inflammation and tissue injury. Immunity 52, 123â135.e126 (2020).
Marsman, G., Zeerleder, S. & Luken, B. M. Extracellular histones, cell-free DNA, or nucleosomes: differences in immunostimulation. Cell Death Dis. 7, e2518 (2016).
Sancho, D. et al. Identification of a dendritic cell receptor that couples sensing of necrosis to immunity. Nature 458, 899â903 (2009).
Ahrens, S. et al. F-actin is an evolutionarily conserved damage-associated molecular pattern recognized by DNGR-1, a receptor for dead cells. Immunity 36, 635â645 (2012).
Zhang, J. G. et al. The dendritic cell receptor Clec9A binds damaged cells via exposed actin filaments. Immunity 36, 646â657 (2012).
Hanc, P. et al. Structure of the complex of F-actin and DNGR-1, a C-type lectin receptor involved in dendritic cell cross-presentation of dead cell-associated antigens. Immunity 42, 839â849 (2015).
Schulz, O. et al. Myosin II synergizes with F-actin to promote DNGR-1-dependent cross-presentation of dead cell-associated antigens. Cell Rep. 24, 419â428 (2018).
Zelenay, S. et al. The dendritic cell receptor DNGR-1 controls endocytic handling of necrotic cell antigens to favor cross-priming of CTLs in virus-infected mice. J. Clin. Invest. 122, 1615â1627 (2012).
Canton, J. et al. The receptor DNGR-1 signals for phagosomal rupture to promote cross-presentation of dead-cell-associated antigens. Nat. Immunol. 22, 140â153 (2021).
Del Fresno, C. et al. DNGR-1 in dendritic cells limits tissue damage by dampening neutrophil recruitment. Science 362, 351â356 (2018).
Neumann, K. et al. Clec12a is an inhibitory receptor for uric acid crystals that regulates inflammation in response to cell death. Immunity 40, 389â399 (2014).
Li, K. et al. The uric acid crystal receptor Clec12A potentiates type I interferon responses. Proc. Natl Acad. Sci. USA 116, 18544â18549 (2019).
Sun, L., Wu, J., Du, F., Chen, X. & Chen, Z. J. Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the type I interferon pathway. Science 339, 786â791 (2013).
Wu, J. et al. Cyclic GMP-AMP is an endogenous second messenger in innate immune signaling by cytosolic DNA. Science 339, 826â830 (2013).
Kawane, K. et al. Chronic polyarthritis caused by mammalian DNA that escapes from degradation in macrophages. Nature 443, 998â1002 (2006).
Yoshida, H., Okabe, Y., Kawane, K., Fukuyama, H. & Nagata, S. Lethal anemia caused by interferon-β produced in mouse embryos carrying undigested DNA. Nat. Immunol. 6, 49â56 (2005).
Kawane, K. et al. Impaired thymic development in mouse embryos deficient in apoptotic DNA degradation. Nat. Immunol. 4, 138â144 (2003).
Okabe, Y., Kawane, K., Akira, S., Taniguchi, T. & Nagata, S. Toll-like receptor-independent gene induction program activated by mammalian DNA escaped from apoptotic DNA degradation. J. Exp. Med. 202, 1333â1339 (2005).
Kawane, K. et al. Requirement of DNase II for definitive erythropoiesis in the mouse fetal liver. Science 292, 1546â1549 (2001).
Lan, Y. Y., Londono, D., Bouley, R., Rooney, M. S. & Hacohen, N. Dnase2a deficiency uncovers lysosomal clearance of damaged nuclear DNA via autophagy. Cell Rep. 9, 180â192 (2014).
Ahn, J., Gutman, D., Saijo, S. & Barber, G. N. STING manifests self DNA-dependent inflammatory disease. Proc. Natl Acad. Sci. USA 109, 19386â19391 (2012).
Gao, D. et al. Activation of cyclic GMP-AMP synthase by self-DNA causes autoimmune diseases. Proc. Natl Acad. Sci. USA 112, E5699âE5705 (2015).
Li, T. et al. TBK1 recruitment to STING mediates autoinflammatory arthritis caused by defective DNA clearance. J. Exp. Med. 219, e20211539 (2022).
Baum, R. et al. Cutting edge: AIM2 and endosomal TLRs differentially regulate arthritis and autoantibody production in DNase II-deficient mice. J. Immunol. 194, 873â877 (2015).
Jakobs, C., Perner, S. & Hornung, V. AIM2 drives joint inflammation in a self-DNA triggered model of chronic polyarthritis. PLoS One 10, e0131702 (2015).
Deng, L. et al. STING-dependent cytosolic DNA sensing promotes radiation-induced type I interferon-dependent antitumor immunity in immunogenic tumors. Immunity 41, 843â852 (2014).
Klarquist, J. et al. STING-mediated DNA sensing promotes antitumor and autoimmune responses to dying cells. J. Immunol. 193, 6124â6134 (2014).
Zhu, Q. et al. Cutting edge: STING mediates protection against colorectal tumorigenesis by governing the magnitude of intestinal inflammation. J. Immunol. 193, 4779â4782 (2014).
Woo, S. R. et al. STING-dependent cytosolic DNA sensing mediates innate immune recognition of immunogenic tumors. Immunity 41, 830â842 (2014).
Ahn, J., Xia, T., Rabasa Capote, A., Betancourt, D. & Barber, G. N. Extrinsic phagocyte-dependent STING signaling dictates the immunogenicity of dying cells. Cancer Cell 33, 862â873 e865 (2018).
Xu, M. M. et al. Dendritic cells but not macrophages sense tumor mitochondrial DNA for cross-priming through signal regulatory protein α signaling. Immunity 47, 363â373 e365 (2017).
Marcus, A. et al. Tumor-derived cGAMP triggers a STING-mediated interferon response in non-tumor cells to activate the NK cell response. Immunity 49, 754â763 e754 (2018).
Carozza, J. A. et al. Extracellular cGAMP is a cancer cell-produced immunotransmitter involved in radiation-induced anti-cancer immunity. Nat. Cancer 1, 184â196 (2020).
Roers, A., Hiller, B. & Hornung, V. Recognition of endogenous nucleic acids by the innate immune system. Immunity 44, 739â754 (2016).
Dhir, A. et al. Mitochondrial double-stranded RNA triggers antiviral signalling in humans. Nature 560, 238â242 (2018).
Pestal, K. et al. Isoforms of RNA-editing enzyme ADAR1 independently control nucleic acid sensor MDA5-driven autoimmunity and multi-organ development. Immunity 43, 933â944 (2015).
Liddicoat, B. J. et al. RNA editing by ADAR1 prevents MDA5 sensing of endogenous dsRNA as nonself. Science 349, 1115â1120 (2015).
Chung, H. et al. Human ADAR1 prevents endogenous RNA from triggering translational shutdown. Cell 172, 811â824.e814 (2018).
Ishizuka, J. J. et al. Loss of ADAR1 in tumours overcomes resistance to immune checkpoint blockade. Nature 565, 43â48 (2019).
Stok, J. E. et al. RNA sensing via the RIG-I-like receptor LGP2 is essential for the induction of a type I IFN response in ADAR1 deficiency. EMBO J. 41, e109760 (2022).
Tosar, J. P., Witwer, K. & Cayota, A. Revisiting extracellular RNA release, processing, and function. Trends Biochem. Sci. 46, 438â445 (2021).
Masouris, I. et al. Inhibition of DAMP signaling as an effective adjunctive treatment strategy in pneumococcal meningitis. J. Neuroinflammation 14, 214 (2017).
Liu, K. et al. Anti-high mobility group box 1 monoclonal antibody ameliorates brain infarction induced by transient ischemia in rats. FASEB J. 21, 3904â3916 (2007).
Fujita, K. et al. HMGB1, a pathogenic molecule that induces neurite degeneration via TLR4-MARCKS, is a potential therapeutic target for Alzheimerâs disease. Sci. Rep. 6, 31895 (2016).
Acknowledgements
We acknowledge our colleagues whose work contributed to the advancement of immune sensing of cell death, and we apologize to those whose work could not be comprehensively cited due to space constraints. Research studies in our laboratories are supported by the US National Institutes of Health (grants AI101935, AI124346, AI160179, AR056296 and CA253095 to T.-D.K.) and the American Lebanese Syrian Associated Charities (T.-D.K.), and the National Health and Medical Research Council of Australia (Ideas Grant APP2002686 and Investigator Grant 2026910 to S.M.M.) and the CSL Centenary Fellowship (S.M.M.).
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S.M.M. and T.-D.K. researched the literature, wrote and edited the Review, and created the original figures.
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Man, S.M., Kanneganti, TD. Innate immune sensing of cell death in disease and therapeutics. Nat Cell Biol 26, 1420â1433 (2024). https://doi.org/10.1038/s41556-024-01491-y
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DOI: https://doi.org/10.1038/s41556-024-01491-y