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TOXICOLOGY AND APPLIED PHARMACOLOGY · 2025 · IF 3.4

Isolicoflavonol alleviates UVB-induced photodamage via protecting mitochondria and blocking the activation of NLRP3 inflammasome

Xing-Jie Zhang,Peng-Yun Yang,Ling Ding,Jun Wang,Xiao-Li Li,Wei-Lie Xiao

Photodamage, a type of skin inflammation caused by excessive exposure to solar radiation, leads to skin redness, inflammation, and even the development of skin cancer, posing a severe threat to individuals living at high altitudes. UVB radiation is considered the primary factor contributing to photodamage. It stimulates macrophages within the epidermis, triggers inflammasome activation, and increases the inflammatory cytokine interleukin-1β (IL-1β) production. This study examined the protective effects of the compound isolicoflavonol (ILF) and its mechanism against UVB-induced photodamage. We irradiated UVB to create a photodamage model in mice and macrophages. Next, we assessed ILF's ability to protect the skin and cells from UVB photodamage and its inhibitory effects on UVB-mediated NLRP3 inflammasome. Our findings indicated that ILF reduced UVB-induced skin injury and inflammation in mouse skin, decreased cell death, NLRP3 inflammasome activation, ROS production, and mitochondrial dysfunction. These results suggest that ILF may be a potent agent for protecting the skin against UVB-induced photodamage.

研究领域: 皮肤病学 · 药理学 · 免疫学 · 放射生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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FREE RADICAL BIOLOGY AND MEDICINE · 2021 · IF 7.376

Polygala saponins inhibit NLRP3 inflammasome-mediated neuroinflammation via SHP-2-Mediated mitophagy

Wen-Qiao Qiu,Wei Ai,Feng-Dan Zhu,Yue Zhang,Min-Song Guo,Betty Yuen-Kwan Law,Jian-Ming Wu,Vincent Kam-Wai Wong,Yong Tang,Lu Yu,Qi Chen,Chong-Lin Yu,Jian Liu,Da-Lian Qin,Xiao-Gang Zhou,An-Guo Wu

Activation of the NLRP3 inflammasome and its mediated neuroinflammation are implicated in neurodegenerative diseases, while mitophagy negatively regulates NLRP3 inflammasome activation. SHP-2, a protein-tyrosine phosphatase, is critical for NLRP3 inflammasome regulation and inflammatory responses. In this study, we investigated whether triterpenoid saponins in Radix Polygalae inhibit the NLRP3 inflammasome via mitophagy induction. First, we isolated the active fraction (polygala saponins (PSS)) and identified 17 saponins by ultra-performance liquid chromatography coupled with diode-array detection and tandem quadrupole time-of-flight mass spectrometry (UHPLC-DAD-Q/TOF-MS). In microglial BV-2 cells, PSS induced mitophagy as evidenced by increased co-localization of LC3 and mitochondria, as well as an increased number of autophagic vacuoles surrounding the mitochondria. Furthermore, the mechanistic study found that PSS activated the AMPK/mTOR and PINK1/parkin signaling pathways via the upregulation of SHP-2. In Aβ(1-42)-, A53T-α-synuclein-, or Q74-induced BV-2 cells, PSS significantly inhibited NLRP3 inflammasome activation, which was attenuated by bafilomycin A1 (an autophagy inhibitor) and SHP099 (an SHP-2 inhibitor). In addition, the co-localization of LC3 and ASC revealed that PSS promoted the autophagic degradation of the NLRP3 inflammasome. Moreover, PSS decreased apoptosis in conditioned medium-induced PC-12 cells. In APP/PS1 mice, PSS improved cognitive function, ameliorated Aβ pathology, and inhibited neuronal death. Collectively, the present study, for the first time, shows that PSS inhibit the NLRP3 inflammasome via SHP-2-mediated mitophagy in vitro and in vivo, which strongly suggests the therapeutic potential of PSS in various neurodegenerative diseases.

研究领域: 神经科学 · 药理学 · 分子生物学 · 神经退行性疾病
✓ 已验证 DOI PubMed 高影响因子
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BIOORGANIC CHEMISTRY · 2024 · IF 4.5

Topical application of magnolol ameliorates psoriasis-like dermatitis by inhibiting NLRP3/Caspase-1 pathway and regulating tryptophan metabolism

Yi Chen,Shasha Song,Yongfang Wang,Lili Wu,Jianbing Wu,Zhengmeng Jiang,Xinyu Li

Psoriasis (PSO) is a common inflammatory skin disease caused by multiple factors. Magnolia officinalis is an important medicinal plant in China, with various values such as ecology, medicine, food, and daily chemicals. However, its diverse application potential has not been fully explored. Magnolol (MGO) is the main active compound of Magnolia officinalis with significant anti-inflammatory effect. To investigate the application potential of MGO in inflammatory skin disease, the effects and underlying mechanisms of topical MGO treating psoriasis were explored in this study. Network pharmacology and molecular docking firstly predicted that topical MGO may treat psoriasis by regulating pyroptosis pathway and acting on caspase-1 (CASP1). In vitro experiments then demonstrated that MGO could inhibit the level of inflammatory cytokines and the key protein expression of NOD-like receptor protein 3 (NLRP3)/Caspase-1 pathway in lipopolysaccharide (LPS)-stimulated phorbol 12-myristate 13-acetate (PMA)-differentiated THP-1 cells. Meanwhile, MGO could inhibit CuSO 4 -induced neutrophils migration in Tg (mpx:EGFP) zebrafish by suppressing inflammation and pyroptosis. This study further indicated that topical application of MGO ameliorated imiquimod (IMQ)-induced psoriasis-like dermatitis by reducing the release of inflammatory factors and decreasing the key protein expression of pyroptosis-related NLRP3/Caspase-1 pathway. Metabolomics analysis revealed that topical application of MGO could significantly regulate tryptophan metabolism and affect the level of tryptophan in skin lesions. Tryptophan could also regulate inflammation-related genes and inhibit pyroptosis-related NLRP3/Caspase-1 pathway in LPS-stimulated PMA-differentiated THP-1 cells. In conclusion, this study suggested that topical MGO may ameliorate psoriasis-like dermatitis by inhibiting NLRP3/Caspase-1 pathway and regulating tryptophan metabolism.

研究领域: 药理学 · 皮肤科 · 分子生物学 · 代谢组学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Pharmaceuticals · 2025 ·Vol. 18 ·期 8 ·1109 · IF 4.8

Qifu Decoction Alleviates Lipopolysaccharide-Induced Myocardial Dysfunction by Inhibiting TLR4/NF-κB/NLRP3 Inflammatory Pathway and Activating PPARα/CPT Pathway

Lingxin Zhuo,Mingxuan Ma,Jiayi Zhang,Jiayu Zhou,Yuqi Zheng,Aiyin Liang,Qingqing Sun,Jia Liu,Wenting Liao

Background/Objectives: Sepsis-induced cardiomyopathy (SIC) is a serious clinical disorder with a high death rate. Qifu decoction (QFD) is a renowned traditional Chinese medicine with documented pharmacological actions, such as anti-inflammatory, anti-oxidant and anti-apoptosis activities, and it has good therapeutic effects on cardiovascular diseases. This study aimed to reveal the cardioprotective effects and underlying mechanisms of QFD against SIC.Methods: Electrocardiography, histopathological examination, and biochemical indicator determination were carried out to investigate the cardioprotective effects of QFD in the treatment of LPS-induced SIC mice. Metabolomics and network pharmacology strategies were employed to preliminarily analyze and predict the mechanisms of QFD against SIC. Molecular docking and Western blot were further applied to validate the core targets and potential pathways for the treatment of SIC in in vitro and in vivo models.Results: It was found that QFD considerably enhanced cardiac function; attenuated myocardial injury; and reduced the serum levels of LDH, CK-MB, IL-1β, and TNF-α by 28.7%, 32.3%, 38.6%, and 36.7%, respectively. Metabolomic analysis showed that QFD could regulate seven metabolic pathways, namely, glutathione metabolism; alanine, aspartate, and glutamate metabolism; arachidonic acid metabolism; glycerophospholipid metabolism; purine metabolism; sphingolipid metabolism; and fatty acid metabolism. Network pharmacology suggested that the anti-SIC effect of QFD may be mediated through the TNF, toll-like receptor, NOD-like receptor, NF-κB, and PPAR signaling pathways. Additionally, 26 core targets were obtained. Molecular docking revealed that active ingredients such as formononetin, kaempferol, quercetin, and (R)-norcoclaurine in QFD had a high affinity for binding to PPARα and TLR4. Further Western blot validation indicated that QFD could regulate the protein levels of NLRP3, TLR4, NF-κB, IL-6, TNF-α, COX2, sPLA2, PPARα, CPT1B, and CPT2.Conclusions: This study demonstrates that QFD can alleviate SIC by suppressing the TLR4/NF-κB/NLRP3 inflammatory pathway and modulating impaired FAO through the activation of the PPARα/CPT pathway, highlighting QFD as a promising candidate drug for SIC treatment.

CAS / MDL: 117-39-5 520-18-3
研究领域: 心脏病学 · 药理学 · 中医学 · 分子生物学 · 免疫学 · 代谢组学 · 网络药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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EXPERIMENTAL GERONTOLOGY · 2024 · IF 3.3

Modified Danzhi XiaoyaoSan inhibits neuroinflammation via regulating TRIM31/NLRP3 inflammasome in the treatment of CUMS depression

Baoying Wang,Lei Tian,Mengdi Wu,Duo Zhang,Xiangli Yan,Ming Bai,Yucheng Li,Pan Su,Erping Xu

The NLRP3 inflammasome is critically involved in the development of depression. The E3 ubiquitin ligase TRIM31 negatively regulates this process by promoting the degradation of NLRP3 through the ubiquitin-proteasome pathway. Modified Danzhi Xiaoyaosan (MDZXYS) has shown good therapeutic effect in both preclinical and clinical depression treatments, yet the underlying mechanisms of its antidepressant effects are not fully understood. In the present study, we aimed to explore the antidepressant mechanisms of MDZXYS, focusing on NLRP3 activation and ubiquitin-mediated degradation. We employed rats with depression induced by chronic unpredictable mild stress (CUMS) and conducted various behavioral tests, including the sucrose preference, forced swimming, and open field tests. Neuronal damage in CUMS-treated rats was assessed using Nissl staining. We measured proinflammatory cytokine levels using ELISA kits and analyzed NLRP3/TRIM31 protein expression via Western blotting and immunofluorescence staining. Our results disclosed that MDZXYS reversed CUMS-induced depression-like behaviors in rats, reduced proinflammatory cytokine levels (IL-1β), and ameliorated neuronal damage in the prefrontal cortex. Additionally, CUMS activated the NLRP3 inflammasome in the prefrontal cortex and upregulated the protein expression of TRIM31. After MDZXYS administration, the expression of NLRP3 inflammasome-associated proteins was reduced, while the expression level of TRIM31 was further increased. Through co-localized immunofluorescence staining, we observed a significant elevation in the co-localization expression of NLRP3 and TRIM31 in the prefrontal cortex of the MDZXYS group. These findings suggest that inhibiting NLRP3 inflammasome-mediated neuroinflammation by modulating the TRIM31signaling pathway may underlie the antidepressant effects of MDZXYS, and further support targeting NLRP3 as a novel approach for the prevention and treatment of depression.

CAS / MDL: 110429-35-1
研究领域: 神经科学 · 药理学 · 精神病学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Neural Regeneration Research · 2024 ·Vol. 19 ·期 10 ·2270 · IF 5.9

3′-Deoxyadenosin alleviates methamphetamine-induced aberrant synaptic plasticity and seeking behavior by inhibiting the NLRP3 inflammasome

Qi Yize,Zhou Yao,Li Jiyang,Zhu Fangyuan,Guo Gengni,Wang Can,Yu Man,Wang Yijie,Ma Tengfei,Feng Shanwu,Zhou Li

Methamphetamine addiction is a brain disorder characterized by persistent drug-seeking behavior, which has been linked with aberrant synaptic plasticity. An increasing body of evidence suggests that aberrant synaptic plasticity is associated with the activation of the NOD-like receptor family pyrin domain containing-3 (NLRP3) inflammasome. 3′-Deoxyadenosin, an active component of the Chinese fungus Cordyceps militaris, has strong anti-inflammatory effects. However, whether 3′-deoxyadenosin attenuates methamphetamine-induced aberrant synaptic plasticity via an NLRP3-mediated inflammatory mechanism remains unclear. We first observed that 3′-deoxyadenosin attenuated conditioned place preference scores in methamphetamine-treated mice and decreased the expression of c-fos in hippocampal neurons. Furthermore, we found that 3′-deoxyadenosin reduced the aberrant potentiation of glutamatergic transmission and restored the methamphetamine-induced impairment of synaptic plasticity. We also found that 3′-deoxyadenosin decreased the expression of NLRP3 and neuronal injury. Importantly, a direct NLRP3 deficiency reduced methamphetamine-induced seeking behavior, attenuated the impaired synaptic plasticity, and prevented neuronal damage. Finally, NLRP3 activation reversed the effect of 3′-deoxyadenosin on behavior and synaptic plasticity, suggesting that the anti-neuroinflammatory mechanism of 3′-deoxyadenosin on aberrant synaptic plasticity reduces methamphetamine-induced seeking behavior. Taken together, 3′-deoxyadenosin alleviates methamphetamine-induced aberrant synaptic plasticity and seeking behavior by inhibiting the NLRP3 inflammasome.

CAS / MDL: 73-03-0
研究领域: 神经科学 · 药理学 · 炎症 · 成瘾 · 行为神经科学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Gut Microbes · 2024 · IF 12.2

Bacteroides fragilis alleviates necrotizing enterocolitis through restoring bile acid metabolism balance using bile salt hydrolase and inhibiting FXR-NLRP3 signaling pathway

Zhenhui Chen,Huijuan Chen,Wanwen Huang,Xiaotong Guo,Lu Yu,Jiamin Shan,Xiaoshi Deng,Jiaxin Liu,Wendan Li,Wei Shen,Hongying Fan

Necrotizing enterocolitis (NEC) is a leading cause of morbidity and mortality in premature infants with no specific treatments available. We aimed to identify the molecular mechanisms underlying NEC and investigate the therapeutic effects of Bacteroides fragilis on NEC. Clinical samples of infant feces, bile acid-targeted metabolomics, pathological staining, bioinformatics analysis, NEC rat model, and co-immunoprecipitation were used to explore the pathogenesis of NEC. Taxonomic characterization of the bile salt hydrolase (bsh) gene, enzyme activity assays, 16S rRNA sequencing, and organoids were used to explore the therapeutic effects of B. fragilis on NEC-related intestinal damage. Clinical samples, NEC rat models, and in vitro experiments revealed that total bile acid increased in the blood but decreased in feces. Moreover, the levels of FXR and other bile acid metabolism-related genes were abnormal, resulting in disordered bile acid metabolism in NEC. Taurochenodeoxycholic acid accelerated NEC pathogenesis and taurodeoxycholate alleviated NEC. B. fragilis displayed bsh genes and enzyme activity and alleviated intestinal damage by restoring gut microbiota dysbiosis and bile acid metabolism abnormalities by inhibiting the FXR-NLRP3 signaling pathway. Our results provide valuable insights into the therapeutic role of B. fragilis in NEC. Administering B. fragilis may substantially alleviate intestinal damage in NEC.

CAS / MDL: 56-40-6 107-35-7
研究领域: 微生物学 · 胃肠病学 · 儿科 · 代谢组学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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INTERNATIONAL IMMUNOPHARMACOLOGY · 2024 · IF 4.8

Kaempferol improves depression-like behaviors through shifting microglia polarization and suppressing NLRP3 via tilting the balance of PPARγ and STAT1 signaling

Pan Su,Liming Liu,Yuhang Gong,Shuaijun Peng,Xiangli Yan,Ming Bai,Erping Xu,Yucheng Li

Background The pathogenesis of depression is largely influenced by dyshomeostasis of neuroinflammation regulated by microglia M1/M2 polarization, and NLRP3 inflammasome acts critical roles in shifting microglia polarization. Kaempferol (Kae), a major flavonoid in edible plants, possesses anti-inflammation and anti-depression capacity, but its underlying cellular and molecular mechanisms of antidepressive effect have not yet fully explored. Methods In vivo studies with lipopolysaccharide (LPS)-induced depressive mice were carried out to evaluate antidepressant effect of Kae. In vitro, BV2 microglia cell line stimulated by LPS along with IFN-γ to detect pharmacological effects of Kae on microglia polarization and NLRP3. Based on two depression-related GEO datasets (GSE54570 and GSE54568) and the potential targets of Kae obtained from GeneCards database, enrichment analysis and protein–protein interaction (PPI) network construction reveal potential therapeutic targets of Kae for depression. Then the precise antidepressant mechanisms of Kae were verified by western blot and immunofluorescent staining in vivo and vitro . Results Our results showed that Kae significantly improves LPS-induced depressive behaviors and alleviates neuroinflammation in prefrontal cortex. Moreover, Kae obviously shifted microglia polarization to M2 phenotype, and also suppressed NLRP3 in prefrontal cortex and BV2. Enrichment analysis and PPI network construction suggested PPARγ and STAT1 signaling are related to regulation of NLRP3 in depression. Furtherly, Kae remarkably enhanced PPARγ activation and inhibited nuclear translocation of p-STAT1 in microglia of prefrontal cortex and BV2. Importantly, pre-incubation with PPARγ antagonist T0070907 or overexpression with CA STAT1 (constitutively active STAT1) both prevented pharmacologic effects of Kae on shifting microglia polarization and suppressing NLRP3 in BV2. Noteworthily, T0070907 significantly blocked the inhibitory effect of Kae on STAT1 while overexpression with CA STAT1 abolished the effect of Kae on PPARγ activation in BV2. Above results suggested that pharmacologic effects of Kae on microglia polarization and NLRP3 are dependent on the balance of counter-regulatory PPARγ and STAT1 signaling. Conclusion Our results indicated that the shifting microglia polarization and suppression of NLRP3 via tilting the balance of PPARγ and STAT1 signaling may be the antidepressant mechanism of Kae, which provides a novel perspective for elucidating antidepressive effect of Kae.

CAS / MDL: 110429-35-1
研究领域: 药理学 · 神经科学 · 免疫学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Virulence · 2022 · IF 5.428

A. caviae infection triggers IL-1β secretion through activating NLRP3 inflammasome mediated by NF-κB signaling pathway partly in a TLR2 dependent manner

Qiankun Yang,Jianguo Zhang,Feixue Liu,Huizhen Chen,Wei Zhang,Haitao Yang,Nana He,Jingquan Dong,Panpan Zhao

Aeromonas caviae, an important food-borne pathogen, induces serious invasive infections and inflammation. The pro-inflammatory IL-1β functions against pathogenic infections and is elevated in various Aeromonas infection cases. However, the molecular mechanism of A. caviae-mediated IL-1β secretion remains unknown. In this study, mouse macrophages (PMs) were used to establish A. caviae infection model and multiple strategies were utilized to explore the mechanism of IL-1β secretion. IL-1β was elevated in A. caviae infected murine serum, PMs lysates or supernatants. This process triggered NLRP3 levels upregulation, ASC oligomerization, as well as dot gathering of NLRP3 and speck-like signals of ASC in the cytoplasm. MCC950 blocked A. caviae mediated IL-1β release. Meanwhile, NLRP3 inflammasome mediated the release of IL-1β in dose- and time-dependent manners, and the release of IL-1β was dependent on active caspase-1, as well as NLRP3 inflammasome was activated by potassium efflux and cathepsin B release ways. A. caviae also enhanced TLR2 levels, and deletion of TLR2 obviously decreased IL-1β secretion. What’s more, A. caviae resulted in NF-κB p65 nuclear translocation partly in a TLR2-dependent manner. Blocking NF-κB using BAY 11-7082 almost completely inhibited NLRP3 inflammasome first signal pro-IL-1β expression. Blocking TLR2, NF-κB, NLRP3 inflammasome significantly downregulated IL-1β release and TNF-α and IL-6 levels. These data illustrate that A. caviae caused IL-1β secretion in PMs is controlled by NLRP3 inflammasome, of which is mediated by NF-κB pathway and is partially dependent on TLR2, providing basis for drugs against A. caviae.

研究领域: 免疫学 · 微生物学 · 传染病学 · 细胞生物学
✓ 已验证 DOI PubMed 高影响因子
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Frontiers in Pharmacology · 2024 · IF 4.4

Wuwei Kushen Changrong capsule alleviates DSS-induced colitis in mice via inhibition of NLRP3 inflammasome and STAT3 pathway

Chen Mingjun,Feng Yang,Luo Dan,Zhang Chen,Zhou Jing,Dai Hengheng,Lin Mingxiong,Tong ZhanQi

Purpose: Wuwei Kushen Changrong capsule (Composite Sophora Colon-soluble Capsule, CSCC) is a Chinese patent medicine developed to treat ulcerative colitis. Studies highlight CSCC potential efficacy for ulcerative colitis (UC) but unclear mechanism limits its widely treatment for patients. We aimed to investigate the anti-colitis efficacy of CSCC and explore the mechanism by which GPR43 inhibits the NLRP3/STAT3 signaling pathway, thereby mediating the protective effects of CSCC on the intestinal barrier.Methods: The protective effects of CSCC were evaluated in a murine ulcerative colitis model induced by 3% DSS. Assessments included body weight, Disease Activity Index (DAI) score, colon length, and histopathological score. Colon tissue, cell function, and immune-inflammatory status were evaluated using immunohistochemistry, immunofluorescence, ELISA, and real-time fluorescence quantitative PCR (RT-PCR). Protein expression levels of relevant pathways and receptors were measured using Western blot. All experiments were repeated.Results: CSCC protected mice from DSS-induced colitis by upregulating Gpr43, promoting the expression of ZO-1 and Occludin tight junction proteins. Mechanistically, CSCC inhibits the MEK4/JNK1/STAT3 activation pathway, consequently suppressing the STAT3/NLRP3/IL-1β pathway and inhibiting the production of inflammatory factors such as IL-17A.Conclusion: The mechanisms through which CSCC protects against DSS-induced colitis may include upregulating Gpr43, inhibiting the STAT3/NLRP3 pathway, and suppressing inflammation factors like IL-17A. These findings highlight the mechanisms underlying CSCC’s anti-colitis effects and suggest its potential as a therapeutic candidate for managing the progression of UC.

CAS / MDL: 89-57-6
研究领域: 药理学 · 免疫学 · 胃肠病学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Theranostics · 2024 · IF 12.4

Osteoblast-specific down-regulation of NLRP3 inflammasome by aptamer-functionalized liposome nanoparticles improves bone quality in postmenopausal osteoporosis rats

Lijun Xu,Jie Zhu,Lingjun Rong,Huinan Yang,Bin Wang,Shuai Lu,Lingxiao Zhang,Fuyi Li,Shihua Yang,Zhifang Wang,Chong Li,Xiao Hu,Ruoyun Liu,Lili Zheng,Hongjian Liu,Haohao Zhang,Yanling Liu,Di Zhao,Shuiying Zhao,Lun Zhang,Yingbo Jia,Shiyu Liang,Zhikang Guo,Xixiu Xie,Ruitian Liu,Lixia Zhang

Rationale: NLRP3 inflammasome is critical in the development and progression of many metabolic diseases driven by chronic inflammation, but its effect on the pathology of postmenopausal osteoporosis (PMOP) remains poorly understood. Methods: We here firstly examined the levels of NLRP3 inflammasome in PMOP patients by ELISA. Then we investigated the possible mechanisms underlying the effect of NLRP3 inflammasome on PMOP by RNA sequencing of osteoblasts treated with NLRP3 siRNA and qPCR. Lastly, we accessed the effect of decreased NLRP3 levels on ovariectomized (OVX) rats. To specifically deliver NLRP3 siRNA to osteoblasts, we constructed NLRP3 siRNA wrapping osteoblast-specific aptamer (CH6)-functionalized lipid nanoparticles (termed as CH6-LNPs-siNLRP3). Results: We found that the levels of NLRP3 inflammasome were significantly increased in patients with PMOP, and were negatively correlated with estradiol levels. NLRP3 knock-down influenced signal pathways including immune system process, interferon signal pathway. Notably, of the top ten up-regulated genes in NLRP3-reduced osteoblasts, nine genes (except Mx2) were enriched in immune system process, and five genes were related to interferon signal pathway. The in vitro results showed that CH6-LNPs-siNLRP3 was relatively uniform with a dimeter of 96.64 ± 16.83 nm and zeta potential of 38.37 ± 1.86 mV. CH6-LNPs-siNLRP3 did not show obvious cytotoxicity and selectively delivered siRNA to bone tissue. Moreover, CH6-LNPs-siNLRP3 stimulated osteoblast differentiation by activating ALP and enhancing osteoblast matrix mineralization. When administrated to OVX rats, CH6-LNPs-siNLRP3 promoted bone formation and bone mass, improved bone microarchitecture and mechanical properties by decreasing the levels of NLRP3, IL-1β and IL-18 and increasing the levels of OCN and Runx2. Conclusion: NLRP3 inflammasome may be a new biomarker for PMOP diagnosis and plays a key role in the pathology of PMOP. CH6-LNPs-siNLRP3 has potential application for the treatment of PMOP.

CAS / MDL: 816-94-4
研究领域: 生物学 · 医学 · 药理学 · 生物技术
✓ 已验证 产品关联 DOI PubMed 高影响因子
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JOURNAL OF CELLULAR AND MOLECULAR MEDICINE · 2024 · IF 4.3

EEBR induces Caspase-1-dependent pyroptosis through the NF-κB/NLRP3 signalling cascade in non-small cell lung cancer

Xin Zhao,Chao Chen,Weina Han,Min Liang,Yuanyuan Cheng,Yingjie Chen,Defeng Pang,Haoqi Lei,Xuefei Feng,Shifeng Cao,Zhixiong Li,Jinhui Wang,Yan Zhang,Baofeng Yang

Lung cancer is a leading cause of cancer-related deaths worldwide. Recent studies have identified pyroptosis, a type of programmed cell death, as a critical process in the development and progression of lung cancer. In this study, we investigated the effect of EEBR, a new compound synthesized by our team, on pyroptosis in non-small cell lung cancer cells (NSCLC) and the underlying molecular mechanisms. Our results demonstrated that EEBR significantly reduced the proliferation and metastasis of NSCLC cells in vitro. Moreover, EEBR-induced pyroptosis in NSCLC cells, as evidenced by cell membrane rupture, the release of cytokines such as interleukin-18 and interleukin-1 beta and the promotion of Gasdermin D cleavage in a Caspase-1-dependent manner. Furthermore, EEBR promoted the nuclear translocation of NF-κB and upregulated the protein level of NLRP3. Subsequent studies revealed that EEBR-induced pyroptosis was suppressed by the inhibition of NF-κB. Finally, EEBR effectively suppressed the growth of lung cancer xenograft tumours by promoting NSCLC pyroptosis in animal models. Taken together, our findings suggest that EEBR induces Caspase-1-dependent pyroptosis through the NF-κB/NLRP3 signalling cascade in NSCLC, highlighting its potential as a candidate drug for NSCLC treatment.

CAS / MDL: 548-62-9
研究领域: 肿瘤学 · 分子生物学 · 细胞生物学 · 药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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