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BIOLOGICAL & PHARMACEUTICAL BULLETIN · 2022 ·Vol. 45 ·期 12 ·1733-1742 · IF 2.264

TLR9 Exerts an Oncogenic Role in Promoting Osteosarcoma Progression Depending on the Regulation of NF-κB Signaling Pathway

Yongbin Jing,Mingkun Jia,Jinpeng Zhuang,Dong Han,Changlong Zhou,Jinglong Yan

Osteosarcoma (OS) is the most common primary malignant bone tumor and is mainly diagnosed in children. Toll-like receptor 9 (TLR9) is expressed in various tumor cells and was correlated with cancer progression. However, the underlying mechanism of TLR9 on the OS progression remains unclear. Our previous study demonstrated that the expression of TLR9 was positively correlated with the development stage of OS. Herein, we further evaluated the actual roles and the molecular mechanism of TLR9 on regulating OS cell proliferation and metastasis. Our data showed that TLR9 was upregulated in OS cells compared to normal osteoblastic cells, and knockdown of TLR9 inhibited OS cell proliferation and induced cell cycle arrest by the decreased expression of cyclin D1, CDK2, and p-Rb, while TLR9 overexpression exerted the inverse effects. Furthermore, TLR9 overexpression could enhance the migration and invasion activities of the OS cells by the upregulation of matrix metalloproteinases 2 (MMP2) and MMP9, and the opposite result was observed in TLR9-silenced cells. Moreover, the nuclear factor kappa B (NF-κB) signaling pathway was activated by TLR9, and TLR9-induced malignant phenotype of OS cells was abrogated by the NF-κB antagonist BAY11-7082. Our study indicated that TLR9 might play a critical role in facilitating OS progression by activating the NF-κB signaling pathway, which may provide a valuable therapeutic target for OS.

研究领域: 肿瘤学 · 细胞生物学 · 分子生物学 · 癌症研究
✓ 已验证 DOI PubMed 高影响因子
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES · 2023 ·Vol. 24 ·期 10 ·8682 · IF 5.6

Pirfenidone Inhibits Alveolar Bone Loss in Ligature-Induced Periodontitis by Suppressing the NF-κB Signaling Pathway in Mice

Zijiao Zhang,Juhan Song,Seung-Hee Kwon,Zhao Wang,Suk-Gyun Park,Xianyu Piao,Je-Hwang Ryu,Nacksung Kim,Ok-Su Kim,Sun-Hun Kim,Jeong-Tae Koh

There has been increasing interest in adjunctive use of anti-inflammatory drugs to control periodontitis. This study was performed to examine the effects of pirfenidone (PFD) on alveolar bone loss in ligature-induced periodontitis in mice and identify the relevant mechanisms. Experimental periodontitis was established by ligating the unilateral maxillary second molar for 7 days in mice (n = 8 per group), and PFD was administered daily via intraperitoneal injection. The micro-computed tomography and histology analyses were performed to determine changes in the alveolar bone following the PFD administration. For in vitro analysis, bone marrow macrophages (BMMs) were isolated from mice and cultured with PFD in the presence of RANKL or LPS. The effectiveness of PFD on osteoclastogenesis, inflammatory cytokine expression, and NF-κB activation was determined with RT-PCR, Western blot, and immunofluorescence analyses. PFD treatment significantly inhibited the ligature-induced alveolar bone loss, with decreases in TRAP-positive osteoclasts and expression of inflammatory cytokines in mice. In cultured BMM cells, PFD also inhibited RANKL-induced osteoclast differentiation and LPS-induced proinflammatory cytokine (IL-1β, IL-6, TNF-a) expression via suppressing the NF-κB signal pathway. These results suggest that PFD can suppress periodontitis progression by inhibiting osteoclastogenesis and inflammatory cytokine production via inhibiting the NF-κB signal pathway, and it may be a promising candidate for controlling periodontitis.Keywords:pirfenidone;periodontitis;osteoclast differentiation;alveolar bone loss;inflammation;NF-κB pathway

CAS / MDL: 306-94-5
研究领域: 牙科学 · 药理学 · 免疫学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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RESEARCH IN VETERINARY SCIENCE · 2023 · IF 2.4

Paeoniflorin alleviates inflammation in bovine mammary epithelial cells induced by Staphylococcus haemolyticus through TLR2/NF-κB signaling pathways

Jirao Shen,Feng Yang,Guibo Wang,Xiaoqing Mou,Jinyu Li,Xuezhi Ding,Xurong Wang,Hongsheng Li

Staphylococcus haemolyticus ( S. haemolyticus ) is one of the most common coagulase-negative staphylococci (CoNS) isolates from bovine mastitis . Paeoniflorin (PF) shows anti-inflammatory effects on different inflammatory diseases in vitro studies and in vivo animal experiments. In this study, the viability of bovine mammary epithelial cells (bMECs) was detected by the cell counting kit-8 experiment. Subsequently, bMECs were induced with S. haemolyticus , and the induction dosage was determined. The expression of pro-inflammatory cytokines and toll-like receptor (TLR2) and nuclear factor kappa-B (NF-κB) signaling pathway-related genes were investigated by quantitative real-time PCR. The critical pathway proteins were detected by western blot . The results showed that the multiplicity of infection (MOI; the ratio of bacteria to bMECs) 5:1 of S. haemolyticus for 12 h could cause cellular inflammation, which was selected to establish the inflammatory model. Incubation with 50 μg/ml PF for 12 h was the best intervention condition for cells stimulated by S. hemolyticus . Quantitative real-time PCR and western blot analysis showed that PF inhibited the activation of TLR2 and NF-κB pathway-related genes and the expression of related proteins. Western blot results showed that PF suppressed the expression of NF-κB unit p65, NF-κB unit p50, and MyD88 in bMECs stimulated by S. haemolyticus . The inflammatory response pathway and molecular mechanism caused by S. haemolyticus on bMECs are related to TLR2-mediated NF-κB signaling pathways. The anti-inflammatory mechanism of PF may also be through this pathway. Therefore, PF is expected to develop potential drugs against CoNS-induced bovine mastitis.

研究领域: 兽医学 · 免疫学 · 药理学
✓ 已验证 DOI PubMed 高影响因子
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CATALYSIS LETTERS · 2025 ·Vol. 155 ·期 9 ·1-14 · IF 2.4

Structured Pt/NiCo2O4/C/NF Superhydrophobic Catalyst for Water-hydrogen Exchange Reactions

Jiang Wenjia,Zhang Pingzhu,Jia Qingqing,Zhang Zhongao,Liu Yaming,Hu Shilin,Ruan Hao,Huang Li,Wu Dong,Zhao Zhi

Hydrophobic catalysts are essential for water-hydrogen exchange reactions to facilitate the separation of hydrogen isotopes. However, existing hydrophobic catalysts are primarily small-sized pelleted forms, which are not suitable for large-scale systems. In contrast, structured catalysts, which offer a low pressure drop and enhanced mass and heat transfer properties, present promising applications. In this work, cake-like nickel foam (NF) was selected as the structural support. Activated carbon was initially loaded onto the NF using silica sol, followed by hydrothermal deposition of NiCo 2 O 4 with a rough morphology, resulting in a carrier with high roughness and a large specific surface area. The carrier attained a superhydrophobic state after modification with heptadecafluorodecyltrimethoxysilane (FD-TMS), achieving a contact angle of 163.8°. The Pt/NiCo 2 O 4 /C/NF superhydrophobic catalyst was subsequently prepared by loading Pt particles via an impregnation-gas phase reduction method. This method exposes the active metal on the surface, enhancing the Pt utilization rate. Furthermore, the extensive surface area of the carrier provided numerous attachment sites for Pt, leading to smaller particle sizes and greater exposure of Pt precursors for reduction to zero-valent Pt. The results indicated that the Pt particle size in the catalyst was 2.31 nm, with 73% of the Pt in the zero-valent form. In water-hydrogen exchange reactions, the total volume mass transfer coefficient Kya for the Pt/NiCo 2 O 4 /C/NF superhydrophobic catalyst reached 17.35 × 10 –2  s –1 , indicating strong catalytic performance. Graphical abstract

研究领域: 催化 · 材料科学 · 化学工程 · 表面科学 · 纳米技术
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JOURNAL OF ETHNOPHARMACOLOGY · 2024 · IF 4.8

Xuetongsu Ameliorates Synovial Inflammatory Hyperplasia in Rheumatoid Arthritis by Inhibiting JAK2/STAT3 and NF-κB Signaling Pathways

Yasi Deng,Yuxin Chen,Hao Zheng,Bin Li,Ling Liang,Wei Su,Bilal Ahmad,Yupei Yang,Hanwen Yuan,Wei Wang,Huanghe Yu

Ethnopharmacological relevance Synovial inflammatory hyperplasia is the key pathological process that leads to further joint damage in rheumatoid arthritis (RA) progress. Kadsura heteroclita (Roxb) Craib, also called Xuetong in Chinese Tujia ethnomedicine, is utilized for its medicinal properties, including promoting blood circulation, dispelling “wind evil”, and relieving “damp evil”. It has been used in the treatment of arthralgia and RA, within Tujia ethnomedicinal practices. Xuetongsu (XTS), the main component of Xuetong, has been shown to inhibit the proliferation of RA fibroblast-like synovial cells (RAFLS) cells. However, the molecular mechanism of XTS in RA treatment requires further investigation. Aim of the study To observe the therapeutic effect of XTS on synovial inflammatory hyperplasia in rheumatoid arthritis, focusing on its underlying molecular mechanisms involving the janus kinase 2 (JAK2)/transducer/activator of transcription 3 (STAT3) and nuclear factor kappa B (NF-κB) signaling pathways. Materials and methods Protein-protein interaction (PPI) and molecular docking were used to find the main targets of XTS treatment for RA. In lipopolysaccharide (LPS)-induced RAFLS and RAW264.7 cells in vitro models, the levels of inflammatory cytokines were analyzed using enzyme linked immunosorbent assay (ELISA), and the expression of JAK2, STAT3, and NF-κB signaling pathways, as well as cyclooxygenase-2 (COX-2), were analyzed through western blotting test. A hemolysis assay was used to certify the biosecurity of XTS. A model of adjuvant arthritis (AIA) was established in 40 male rats, and different doses of XTS were administered, followed by an automatic blood routine, ELISA assay, hematoxylin and eosin (H&E) staining, and radiological analysis of the effect of no XTS on blood cytokines, histological changes, and improvement of posterior paw bone destruction in AIA rats. The protein levels of inflammatory cytokines were analyzed by immunofluorescence, immunohistochemistry, or western blot. Finally, H&E staining was used to detect the damage of XTS on the heart, liver, spleen, lung, and kidney of AIA rats. Results Our results demonstrate that XTS effectively inhibited LPS-induced inflammatory responses in RAFLS and RAW264.7 cells by modulating the JAK2/STAT3 and NF-κB signaling pathways. Moreover, XTS administration in the AIA rats model significantly ameliorated paw swelling. Histological analysis revealed that XTS also suppressed the inflammatory response in paw tissue by modulating the JAK2/STAT3 and NF-κB signaling pathways. Importantly, during the treatment, XTS exhibited excellent safety profiles, as it did not induce any abnormalities in blood routine parameters or cause organ damage in the rats. Conclusions Our findings highlight XTS as a promising natural agent for inhibiting synovial hyperplasia in RA. XTS holds great potential as an unprecedented natural agent for developing novel therapeutic strategies to target synovial hyperplasia in RA.

研究领域: 药理学 · 免疫学 · 民族药理学 · 分子生物学
✓ 已验证 DOI PubMed 高影响因子
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Cells · 2022 ·Vol. 11 ·期 22 ·3588 · IF 7.666

Abrocitinib Attenuates Microglia-Mediated Neuroinflammation after Traumatic Brain Injury via Inhibiting the JAK1/STAT1/NF-κB Pathway

Tuo Li,Lei Li,Ruilong Peng,Hongying Hao,Hejun Zhang,Yalong Gao,Cong Wang,Fanjian Li,Xilei Liu,Fanglian Chen,Shu Zhang,Jianning Zhang

Background and Purpose: Neuroinflammation has been shown to play a critical role in secondary craniocerebral injury, leading to poor outcomes for TBI patients. Abrocitinib, a Janus kinase1 (JAK1) selective inhibitor approved to treat atopic dermatitis (AD) by the Food and Drug Administration (FDA), possesses a novel anti-inflammatory effect. In this study, we investigated whether abrocitinib could ameliorate neuroinflammation and exert a neuroprotective effect in traumatic brain injury (TBI) models. Methods: First, next-generation sequencing (NGS) was used to select genes closely related to neuroinflammation after TBI. Then, magnetic resonance imaging (MRI) was used to dynamically observe the changes in traumatic focus on the 1st, 3rd, and 7th days after the induction of fluid percussion injury (FPI). Moreover, abrocitinib’s effects on neurobehaviors were evaluated. A routine peripheral blood test was carried out and Evans blue dye extravasation, cerebral cortical blood flow, the levels of inflammatory cytokines, and changes in the numbers of inflammatory cells were evaluated to investigate the function of abrocitinib on the 1st day post-injury. Furthermore, the JAK1/signal transducer and activator of transcription1 (STAT1)/nuclear factor kappa (NF-κB) pathway was assessed. Results: In vivo, abrocitinib treatment was found to shrink the trauma lesions. Compared to the TBI group, the abrocitinib treatment group showed better neurological function, less blood-brain barrier (BBB) leakage, improved intracranial blood flow, relieved inflammatory cell infiltration, and reduced levels of inflammatory cytokines. In vitro, abrocitinib treatment was shown to reduce the pro-inflammatory M1 microglia phenotype and shift microglial polarization toward the anti-inflammatory M2 phenotype. The WB and IHC results showed that abrocitinib played a neuroprotective role by restraining JAK1/STAT1/NF-κB levels after TBI. Conclusions: Collectively, abrocitinib treatment after TBI is accompanied by improvements in neurological function consistent with radiological, histopathological, and biochemical changes. Therefore, abrocitinib can indeed reduce excessive neuroinflammation by restraining the JAK1/STAT1/NF-κB pathway.Keywords:TBI;abrocitinib;neuroinflammation;JAK1/STAT1/NF-κB

CAS / MDL: 75-12-7
研究领域: 神经科学 · 药理学 · 炎症 · 创伤
✓ 已验证 产品关联 DOI PubMed 高影响因子
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES · 2022 ·Vol. 23 ·期 3 ·1252 · IF 6.208

Triptolide Suppresses NF-κB-Mediated Inflammatory Responses and Activates Expression of Nrf2-Mediated Antioxidant Genes to Alleviate Caerulein-Induced Acute Pancreatitis

Jing Yang,Xujiao Tang,Xue Ke,Yutong Dai,Jinsong Shi

Triptolide (TP), the main active ingredient ofTripterygium wilfordii Hook.f., displays potent anti-inflammatory, antioxidant, and antiproliferative activities. In the present study, the effect of TP on acute pancreatitis and the underlying mechanisms of the disease were investigated using a caerulein-induced animal model of acute pancreatitis (AP) and an in vitro cell model. In vivo, pretreatment with TP notably ameliorated pancreatic damage, shown as the improvement in serum amylase and lipase levels and pancreatic morphology. Meanwhile, TP modulated the infiltration of neutrophils and macrophages (Ly6G staining and CD68 staining) and decreased the levels of proinflammatory factors (TNF-α and IL-6) through inhibiting the transactivation of nuclear factor-κB (NF-κB) in caerulein-treated mice. Furthermore, TP reverted changes in oxidative stress markers, including pancreatic glutathione (GSH), superoxide dismutase (SOD), and malondialdehyde (MDA), in acute pancreatitis mice. Additionally, TP pretreatment inhibited intracellular reactive oxygen species (ROS) levels via upregulated nuclear factor erythroid 2-related factor 2 (Nrf2) expression and Nrf2-regulated redox genes expression (HO-1, SOD1, GPx1 and NQO1) in vitro. Taken together, our data suggest that TP exert protection against pancreatic inflammation and tissue damage by inhibiting NF-κB transactivation, modulating immune cell responses and activating the Nrf2-mediated antioxidative system, thereby alleviating acute pancreatitis.Keywords:acute pancreatitis;triptolide;inflammatory responses;oxidative stress

CAS / MDL: 93572-42-0
研究领域: 药理学 · 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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ACS Omega · 2019 · IF 2.584

CLG from Hemp Seed Inhibits LPS-Stimulated Neuroinflammation in BV2 Microglia by Regulating NF-κB and Nrf-2 Pathways

Shanshan Wang,Qian Luo,Yuefang Zhou,Peihong Fan

The healthy benefits of hemp (Cannabis sativa L.) seed have often been attributed to its oils and proteins. Recent studies reveal that hemp seed phenylpropionamides could also show various bioactivities. Continuation of our study on hemp seed provided a phenylpropionamide, coumaroylaminobutanol glucopyranoside (CLG). This work investigated the neuroprotective effect of CLG and its underlying mechanism using lipopolysaccharide-induced BV2 microglia. Our study demonstrated that CLG increased adenosine monophosphate-activated protein kinase (AMPK) expression, suppressed the nuclear factor-kappa B (NF-κB) signaling pathway by inhibiting the phosphorylation of IκBα and NF-κB p65 and decreased proinflammatory cytokine levels in a concentration-dependent manner. Furthermore, CLG reduced the production of cellular reactive oxygen species and stimulated the nuclear factor erythroid 2-related factor 2 (Nrf-2) signaling pathway. Collectively, these results suggested that CLG effectively and simultaneously inhibited inflammatory responses and oxidative stress through the NF-κB and Nrf-2 signaling pathways. AMPK was also involved in the anti-inflammatory effect of CLG. This study provides new insights into the diverse bioactive constituents of hemp seed.

CAS / MDL: 866405-64-3
研究领域: 神经科学 · 药理学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS · 2025 · IF 2.2

Baicalein alleviates chronic acute stress-induced irritable bowel syndrome-like symptoms in rats via modulating the ODC1/NF-κB pathway and oxidative stress

Han Lin,Yunlong Lv,Huacheng Liu,Zheng Lin,Ning Zhu,Bingwu Huang

Background As a persistent gastrointestinal disorder, irritable bowel syndrome (IBS) influences the gut-brain connection, leading to abdominal pain and altered bowel irregularities. Baicalein, a flavonoid extracted from Scutellaria baicalensis, is frequently utilized in anti-inflammatory treatments. This study aimed to explore baicalein's effectiveness in mitigating IBS symptoms triggered by both chronic and acute stress (CAS) and to uncover its fundamental mechanisms. Methods Sprague-Dawley rats were employed to develop an IBS rat model by inducing CAS for five weeks. Each rat was randomly allocated to one of four experimental groups: model (M), low-dose baicalein (L), high-dose baicalein (H), and control (C). Baicalein was orally administered throughout the experiment. Behavioral assessments were conducted, including forced swimming, marble-burying, intestinal motility, and visceral sensitivity tests. Colonic tissues were collected for histopathological examination, evaluation of oxidative stress (MDA and SOD levels), and analysis of inflammatory cytokines, and ODC1/NF-κB pathway activation using Western blot assay, ELISA, and immunofluorescence. Results Baicalein treatment notably ameliorated IBS-like symptoms, such as fecal pellet output and AWR scores, by alleviating stress-induced behavioral changes. Baicalein bolstered antioxidant defenses through boosting SOD activity and lowering MDA levels. Moreover, baicalein inhibited inflammatory responses, targeting IL-6, IL-1β, and TNF-α, while suppressing the expression of ODC1 and restraining NF-κB p65 phosphorylation within the colon. These results indicate that baicalein modulates oxidative stress and inflammation in CAS-associated IBS. Conclusion Baicalein demonstrates protection against CAS-induced IBS by diminishing intestinal inflammation, oxidative damage, and visceral hypersensitivity via suppression of the ODC1/NF-κB pathway. These findings underscore baicalein's potential as a therapeutic approach for IBS.

研究领域: 药理学 · 胃肠病学
✓ 已验证 DOI PubMed 高影响因子
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Frontiers in Pharmacology · 2021 · IF 5.811

Shen-Yuan-Dan Capsule Attenuates Verapamil-Induced Zebrafish Heart Failure and Exerts Antiapoptotic and Anti-Inflammatory Effects via Reactive Oxygen Species–Induced NF-κB Pathway

Li Sinai,Liu Hongxu,Li Yue,Qin Xiaomei,Li Mengjie,Shang Juju,Xing Wenlong,Gong Yanbing,Liu Weihong,Zhou Mingxue

Background: Heart failure (HF) is the end stage of ischemic cardiovascular diseases; nonetheless, safe and effective therapeutic agents for HF are still lacking, and their discovery remains challenging. Our previous studies demonstrated that Shen-Yuan-Dan Capsule (SYDC), a hospital preparation of traditional Chinese herbal, effectively protected ischemic injury in cardiovascular diseases. However, its therapeutic effects and possible mechanisms on HF remain unclear.Methods: A zebrafish HF model treated with verapamil was developed to assess the therapeutic effect of SYDC on HF zebrafish. Zebrafish were administered with SYDC and digoxin (positive control) by direct soaking. After drug treatment, zebrafish were randomly assigned to the visual observation and image acquisition using a Zebralab Blood Flow System. The reactive oxygen species (ROS), MDA, and SOD levels were determined by fluorescence signal detection, TBA, and WST-8 methods. RT-PCR determined the mRNA expressions of Caspase-3, Caspase-1, Bcl-2, Bax, IL-1β, NF-κB, and TNF-α.Results: SYDC significantly inhibited the levels of heart dilatation and venous congestion and markedly increased the levels of cardiac output, blood flow dynamics, and heart rates in HF zebrafish (p < 0.05, p < 0.01, and p < 0.001). Moreover, SYDC also significantly decreased the levels of MDA and ROS and increased the level of SOD in HF zebrafish. The RT-PCR results revealed that SYDC decreased the expression of Caspase-1, Caspase-3, Bax, IL-1β, NF-κB, and TNF-α but increased the expression of Bcl-2 in HF zebrafish (p < 0.05, p < 0.01, and p < 0.001).Conclusions: SYDC improved the heart function in verapamil-induced HF zebrafish and alleviated inflammation and apoptosis by inhibiting the ROS-mediated NF-κB pathway.

CAS / MDL: 52-53-9
研究领域: 心血管药理学 · 中药研究 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Toxins · 2023 ·Vol. 15 ·期 2 ·132 · IF 4.2

Absorption and Transport Mechanism of Red Meat-Derived N-glycolylneuraminic Acid and Its Damage to Intestinal Barrier Function through the NF-κB Signaling Pathway

Enqi He,Wei Quan,Jie Luo,Chuxin Liu,Wanting Zheng,Qingwu Shen

N-glycolylneuraminic acid (Neu5Gc) is a specific factor in red meat that induces intestinal disease. Our aim was to investigate the effect of Neu5Gc on the intestinal barrier as well as its mechanism of endocytosis and exocytosis. Ten specific inhibitors were used to explore the mechanism of Neu5Gc endocytosis and exocytosis by Caco-2 cells. Amiloride hydrochloride and cytochalasin D had the strongest inhibitory effect on the endocytosis of Neu5Gc. Sodium azide, dynasore, chlorpromazine hydrochloride, and nystatin also inhibited Neu5Gc endocytosis. Dynasore exhibited a stronger inhibitory effect than that of chlorpromazine hydrochloride or nystatin alone. Exocytosis inhibitors, including nocodazole, brefeldin A, monensin, and bafilomycin A, inhibited the transmembrane transport of Neu5Gc. Monensin promoted the exocytosis of Neu5Gc from Caco-2 cells. In another experiment, we observed no significant inhibitory effects of monensin and brefeldin A. Dietary concentrations of Neu5Gc induced prominent damage to intestinal tight junction proteins zonula occludens-1 (ZO-1), occludin, and claudin-1 and promoted the phosphorylation of IκB-α and P65 to activate the canonical Nuclear Factor kappa-B (NF-κB) pathway. Neu5Gc increased the RNA levels of pro-inflammatory factors IL-1β, IL-6, and TNF-α and inhibited those of anti-inflammatory factors TGF-β and IL-10. BAY, an NF-κB signaling pathway inhibitor, attenuated these changes. Reductions in the levels of ZO-1, occludin, and claudin-1 were recovered in response to BAY. Our data reveal the endocytosis and exocytosis mechanism of Neu5Gc and prove that Neu5Gc can activate the canonical NF-κB signaling pathway, regulate the transcription of inflammatory factors, thereby damaging intestinal barrier function.Keywords:Neu5Gc;transport mechanisms;intestinal barrier function;NF-κB;cytotoxicologyKey Contribution:Systematically studied the absorption and transportation mechanisms of Neu5Gc in intestinal epithelial cells. Neu5Gc could activate the canonical NF-κB signaling pathway, regulate the transcription of inflammatory factors, and destroy the intestinal barrier function.

研究领域: 药理学 · 免疫学 · 细胞生物学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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CURRENT ISSUES IN MOLECULAR BIOLOGY · 2025 ·Vol. 47 ·期 12 ·991 · IF 3

ADGRG6 Promotes Pancreatic Adenocarcinoma Progression Through the NF-κB/STAT6 Axis and Modulation of the Tumor Immune Microenvironment

Lisha Li,Zhen Yu,Xuehua Lu,Pei Yang,Shuxia Zhang,Qinghua Lin,Junyong Han

Background: Adhesion G protein-coupled receptor G6 ( ADGRG6 ), also known as GPR126 , has been implicated in several malignancies. However, its expression pattern, clinical significance, and mechanistic role in pancreatic adenocarcinoma (PAAD) remain unclear. Methods: We combined multi-omics analyses, tissue microarray immunohistochemistry, and a series of functional experiments, including 2D and 3D spheroid cultures, zebrafish xenografts, and murine tumor models—to investigate the expression, clinical significance, and mechanism of ADGRG6 in PAAD. The association between ADGRG6 expression and immune infiltration was assessed using TIMER and GEPIA databases, followed by mechanistic validation through ADGRG6 modulation in PAAD cell lines. Results: ADGRG6 was significantly overexpressed in PAAD and correlated with larger tumor size, higher grade, advanced TNM stage, and poor overall survival. Multivariate logistic regression confirmed that high ADGRG6 expression was independently associated with higher pathological grade. Functionally, ADGRG6 silencing markedly inhibited PAAD cell proliferation, migration, and invasion in both 2D and 3D cultures, as well as in zebrafish and nude mouse xenograft models. Integrated transcriptomic and immune analyses revealed that ADGRG6 expression positively correlated with mast cells, macrophages (M1/M2), Th2/Th17 subsets, and interferon–responsive neutrophils. Mechanistically, ADGRG6 silencing reduced STAT6 phosphorylation and GATA3 expression, consistent with the suppression of the NF-κB→STAT6→GATA3 axis. Conclusions: ADGRG6 functions as an oncogenic driver in PAAD, promoting tumor progression and fostering an immunosuppressive microenvironment via NF-κB/STAT6 signaling. These findings not only broaden the mechanistic understanding of ADGRG6 function but also suggest it as a promising target for therapeutic intervention in PAAD.

CAS / MDL: 7681-52-9
✓ 已验证 产品关联 DOI PubMed 高影响因子
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