# Research advances on NLRP3 inflammasomes in organ transplantation

**Authors:** Kun Wang, Hong Luo, Xiao-jie Ma, Yu Zhang, Yu-xiang Chen, Tao Li, Yi Wang, Hong-tao Jiang

PMC · DOI: 10.3389/fimmu.2026.1726601 · Frontiers in Immunology · 2026-02-09

## TL;DR

This paper reviews how the NLRP3 inflammasome contributes to inflammation and complications in organ transplantation and explores potential strategies to target it for better outcomes.

## Contribution

The paper provides a comprehensive overview of the NLRP3 inflammasome's role in transplant-related inflammation and highlights challenges in translating preclinical findings to clinical practice.

## Key findings

- NLRP3 inflammasome activation contributes to tissue damage during ischemia-reperfusion injury.
- It plays a dual role in infection, offering both protective and harmful effects depending on the context.
- Preclinical targeting of NLRP3 shows promise, but clinical translation remains difficult.

## Abstract

Organ transplantation is a life-saving therapy for end-organ failure; however, long-term outcomes are limited by complications such as ischemia-reperfusion injury (IRI), allograft rejection, and infection. The NLRP3 inflammasome, a key innate immune signaling platform, plays a central role in driving inflammation in these settings. Its activation follows a two-signal paradigm and contributes critically to tissue damage during IRI, bridges innate and adaptive immunity in acute and chronic rejection, and exerts context-dependent roles, either protective or detrimental, during infection. Although targeting NLRP3 through genetic, pharmacological, or cellular approaches shows therapeutic promise in preclinical studies, clinical translation remains challenging. Future efforts should focus on refining these strategies and elucidating its interplay within broader immune networks to improve transplant outcomes.

## Linked entities

- **Genes:** NLRP3 (NLR family pyrin domain containing 3) [NCBI Gene 114548]
- **Diseases:** ischemia-reperfusion injury (MONDO:0005203), infection (MONDO:0005550)

## Full-text entities

- **Genes:** IL1B (interleukin 1 beta) [NCBI Gene 3553] {aka IL-1, IL1-BETA, IL1F2, IL1beta}, Nlrp3 (NLR family, pyrin domain containing 3) [NCBI Gene 216799] {aka AGTAVPRL, AII/AVP, Cias1, FCAS, FCU, MWS}, DNAH8 (dynein axonemal heavy chain 8) [NCBI Gene 1769] {aka ATPase, SPGF46, hdhc9}, CAMK2G (calcium/calmodulin dependent protein kinase II gamma) [NCBI Gene 818] {aka CAMK, CAMK-II, CAMKG, MRD59}, PRKAA1 (protein kinase AMP-activated catalytic subunit alpha 1) [NCBI Gene 5562] {aka AMPK, AMPK alpha 1, AMPKa1}, CD8A (CD8 subunit alpha) [NCBI Gene 925] {aka CD8, CD8alpha, IMD116, Leu2, p32}, IRAK1 (interleukin 1 receptor associated kinase 1) [NCBI Gene 3654] {aka IRAK, pelle}, CASP1 (caspase 1) [NCBI Gene 834] {aka ICE, IL1BC, P45}, TGFB1 (transforming growth factor beta 1) [NCBI Gene 7040] {aka CAEND1, CED, DPD1, IBDIMDE, LAP, TGF-beta1}, IRAK4 (interleukin 1 receptor associated kinase 4) [NCBI Gene 51135] {aka IMD67, IPD1, IRAK-4, NY-REN-64, REN64}, MTOR (mechanistic target of rapamycin kinase) [NCBI Gene 2475] {aka FRAP, FRAP1, FRAP2, RAFT1, RAPT1, SKS}, C5AR1 (complement C5a receptor 1) [NCBI Gene 728] {aka C5A, C5AR, C5R1, CD88}, ENTPD1 (ectonucleoside triphosphate diphosphohydrolase 1) [NCBI Gene 953] {aka ATP-DPH, ATPDase, CD39, NTPDase-1, SPG64}, Il1b (interleukin 1 beta) [NCBI Gene 16176] {aka IL-1beta, Il-1b}, NLRP3 (NLR family pyrin domain containing 3) [NCBI Gene 114548] {aka AGTAVPRL, AII, AVP, C1orf7, CIAS1, CLR1.1}, OCLN (occludin) [NCBI Gene 100506658] {aka BLCPMG, PPP1R115, PTORCH1}, STAT3 (signal transducer and activator of transcription 3) [NCBI Gene 6774] {aka ADMIO, ADMIO1, APRF, HIES}, TLR2 (toll like receptor 2) [NCBI Gene 7097] {aka CD282, TIL4}, CTSB (cathepsin B) [NCBI Gene 1508] {aka APPS, CPSB, KWE, RECEUP}, Txnip (thioredoxin interacting protein) [NCBI Gene 56338] {aka 1200008J08Rik, Hyplip1, THIF, Tbp-2, VDUP1}, IL17A (interleukin 17A) [NCBI Gene 3605] {aka CTLA-8, CTLA8, IL-17, IL-17A, IL17, ILA17}, CD86 (CD86 molecule) [NCBI Gene 942] {aka B7-2, B7.2, B70, BU63, CD28LG2, CD86 v6}, TLR4 (toll like receptor 4) [NCBI Gene 7099] {aka ARMD10, CD284, TLR-4, TOLL}, NT5E (5'-nucleotidase ecto) [NCBI Gene 4907] {aka CALJA, CD73, E5NT, NT, NT5, NTE}, AKT1 (AKT serine/threonine kinase 1) [NCBI Gene 207] {aka AKT, PKB, PKB-ALPHA, PRKBA, RAC, RAC-ALPHA}, IVNS1ABP (influenza virus NS1A binding protein) [NCBI Gene 10625] {aka ARA3, FLARA3, HSPC068, IMD70, KLHL39, ND1}, NFKBIA (NFKB inhibitor alpha) [NCBI Gene 4792] {aka EDAID2, IKBA, MAD-3, NFKBI}, Il18 (interleukin 18) [NCBI Gene 16173] {aka Igif, Il-18}, CLDN5 (claudin 5) [NCBI Gene 7122] {aka AWAL, BEC1, CPETRL1, TMDVCF, TMVCF}, HLA-A (major histocompatibility complex, class I, A) [NCBI Gene 3105] {aka HLAA}, CCN2 (cellular communication network factor 2) [NCBI Gene 1490] {aka CTGF, HCS24, IBP-8, IGFBP8, KMD, NOV2}, Casp1 (caspase 1) [NCBI Gene 12362] {aka ICE, Il1bc}, IFNG (interferon gamma) [NCBI Gene 3458] {aka IFG, IFI, IMD69}, TICAM1 (TIR domain containing adaptor molecule 1) [NCBI Gene 148022] {aka IIAE6, MyD88-3, PRVTIRB, TICAM-1, TRIF}, MYD88 (MYD88 innate immune signal transduction adaptor) [NCBI Gene 4615] {aka IMD68, MYD88D, WM1}, TLR3 (toll like receptor 3) [NCBI Gene 7098] {aka CD283, IIAE2, IMD83}, S100A10 (S100 calcium binding protein A10) [NCBI Gene 6281] {aka 42C, ANX2L, ANX2LG, CAL1L, CLP11, Ca[1]}, TLR9 (toll like receptor 9) [NCBI Gene 54106] {aka CD289}, JAG1 (jagged canonical Notch ligand 1) [NCBI Gene 182] {aka AGS, AGS1, AHD, AWS, CD339, CMT2HH}, TPPP3 (tubulin polymerization promoting protein family member 3) [NCBI Gene 51673] {aka CGI-38, TPPP/p20, p20, p25gamma}, CD80 (CD80 molecule) [NCBI Gene 941] {aka B7, B7-1, B7.1, BB1, CD28LG, CD28LG1}, FOXO3 (forkhead box O3) [NCBI Gene 2309] {aka AF6q21, FKHRL1, FKHRL1P2, FOXO2, FOXO3A}, RELA (RELA proto-oncogene, NF-kB subunit) [NCBI Gene 5970] {aka AIF3BL3, CMCU, NFKB3, p65}, NFKB1 (nuclear factor kappa B subunit 1) [NCBI Gene 4790] {aka CVID12, EBP-1, KBF1, NF-kB, NF-kB1, NF-kappa-B1}, Sts (steroid sulfatase) [NCBI Gene 20905] {aka ArsC}, CD4 (CD4 molecule) [NCBI Gene 920] {aka CD4mut, IMD79, Leu-3, OKT4D, T4}, TRIM31 (tripartite motif containing 31) [NCBI Gene 11074] {aka C6orf13, HCG1, HCGI, RNF}, PIK3CB (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta) [NCBI Gene 5291] {aka P110BETA, PI3K, PI3KBETA, PIK3C1}
- **Diseases:** pulmonary edema (MESH:D011654), urinary tract infections (MESH:D014552), toxicity (MESH:D064420), myocardial interstitial edema (MESH:D004487), CAN (MESH:D051436), Alzheimer's disease (MESH:D000544), candidemia (MESH:D058387), cardiovascular allograft disease (MESH:D002318), acute tubular necrosis (MESH:D007683), renal transplant artery (MESH:D012078), infection (MESH:D007239), inflammatory damage (MESH:D018746), Klebsiella pneumoniae (MESH:D007710), ischemic (MESH:D002545), end-stage failure (MESH:D007676), tubular injury (MESH:D000230), influenza infection (MESH:D007251), viral infection (MESH:D014777), parenchymal injury (MESH:D002543), occlusive vascular lesions (MESH:D008641), atherosclerosis (MESH:D050197), Mitochondrial dysfunction (MESH:D028361), gout (MESH:D006073), HL (MESH:C538324), injury (MESH:D014947), glomerulosclerosis (MESH:D005921), inflammation (MESH:D007249), impaired liver function (MESH:D008107), fibrosis (MESH:D005355), Ischemia-reperfusion injury (MESH:D015427), thrombosis (MESH:D013927), myocardial cell (MESH:D002292), tissue injury (MESH:D017695), sepsis (MESH:D018805), infectious complications (MESH:D003141), hypoxia (MESH:D000860), stenosis (MESH:D003251), diabetic nephropathy (MESH:D003928), Ischemia (MESH:D007511), Aspergillus infection (MESH:D001228), Bacterial and fungal infections (MESH:D009181), acute respiratory distress syndrome (MESH:D012128), intimal hyperplasia (MESH:D006965), necrosis (MESH:D009336), hypokalemic (MESH:D020514), ischemic reperfusion injury (MESH:D015428), postoperative (MESH:D019106), Candida infection (MESH:D002177), myocarditis (MESH:D009205), Bacterial infections (MESH:D001424), end-organ failure (MESH:D009102), arrhythmia (MESH:D001145), invasive pulmonary aspergillosis (MESH:D055744), CMV (MESH:D003586), glomerular sclerosis (MESH:D007674), microbial infection (MESH:D015163)
- **Chemicals:** aspartic acid (MESH:D001224), galactomannan (MESH:C012990), urate (MESH:D014527), asbestos (MESH:D001194), Quercetin (MESH:D011794), K+ (MESH:D011188), oxygen (MESH:D010100), hypoxanthine (MESH:D019271), BMSC (-), Adenosine (MESH:D000241), curcumin (MESH:D003474), mannose (MESH:D008358), short-chain fatty acids (MESH:D005232), MCC950 (MESH:C000597426), beta - glucan (MESH:D047071), ROS (MESH:D017382), calcium (MESH:D002118), N-acetylcysteine (MESH:D000111), LPS (MESH:D008070), Glibenclamide (MESH:D005905), cysteine (MESH:D003545), nucleotide (MESH:D009711), ATP (MESH:D000255), phenol (MESH:D019800), cardiolipin (MESH:D002308), nigericin (MESH:D009550)
- **Species:** Klebsiella pneumoniae (species) [taxon 573], Candida [taxon 1535326], Homo sapiens (human, species) [taxon 9606], Staphylococcus aureus (species) [taxon 1280], Mus musculus (house mouse, species) [taxon 10090], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395], Escherichia coli (E. coli, species) [taxon 562], Aspergillus fumigatus (species) [taxon 746128], Enterococcus (genus) [taxon 1350], Acinetobacter baumannii (species) [taxon 470]

## Full text

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## References

114 references — full list in the complete paper: https://tomesphere.com/paper/PMC12926476/full.md

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Source: https://tomesphere.com/paper/PMC12926476