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Biomaterials Science · 2021 ·Vol. 9 ·期 19 ·6403-6415 · IF 6.843

Enhanced anti-tumor efficacy by inhibiting HIF-1α to reprogram TAMs via core-satellite upconverting nanoparticles with curcumin mediated photodynamic therapy

Li-Jun Zhang,Rui Huang,Yi-Wen Shen,Jie Liu,Ye Wu,Jin-Mei Jin,Hong Zhang,Yun Sun,Hong-Zhuan Chen,Xin Luan

Tumor hypoxic stress after photodynamic therapy (PDT) will be inevitably exacerbated by the vascular blocking effects and oxygen consumption in the tumor microenvironment (TME) which usually leads to compromised efficacy and clinical performance. Increasing evidence links the hypoxia induced up-regulation of hypoxia inducible factor 1α (HIF-1α) with immunosuppressive TME, including the polarization of M2 phenotype tumor associated macrophages (TAMs), which promote the recurrence and metastasis. Here, we reported NIR-triggered core-satellite upconverting nanoparticles (CSNPs) with curcumin (Cur) embedded as a difunctional photosensitizer, which could realize PDT in deep tumors with long excitation wavelength (980 nm) and reverse the immunosuppressive TME induced by up-regulated HIF-1α at the same time. This Cur-loaded CSNPs (Cur–CSNPs)-mediated PDT could successfully induce the immunogenic cell death (ICD) of triple negative breast cancer (TNBC) cell lines (4T1 and MDA-MB-231) in vitro and repolarize the 4T1 cells co-cultured TAMs from pro-tumor M2 to the anti-tumor M1 phenotype. Furthermore, Cur–CSNPs-mediated PDT could suppress the 4T1 tumor growth in primary and distant sites through the synergistic immunotherapeutic effects in vivo by priming M1 type TAMs and CD4+/CD8+ T cells’ infiltration. Our data highlight the novel application of CSNPs-embedded Cur as a difunctional photosensitizer to enhance the anti-tumor efficacy of PDT.

CAS / MDL: 1331-74-4
研究领域: 肿瘤学 · 免疫学 · 纳米医学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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BIOLOGICAL RESEARCH · 2024 ·Vol. 57 ·期 1 ·1-12 · IF 4.3

Electroacupuncture attenuates neuropathic pain via suppressing BIP-IRE-1α-mediated endoplasmic reticulum stress in the anterior cingulate cortex

Ma Lin-Wei,Liu Yu-Fan,Zhang Hui,Huang Chang-Jun,Li Ang,Qu Xin-Zhe,Lin Jia-Piao,Yang Yan,Yao Yong-Xing

Studies have suggested that endoplasmic reticulum stress (ERS) is involved in neurological dysfunction and that electroacupuncture (EA) attenuates neuropathic pain (NP) via undefined pathways. However, the role of ERS in the anterior cingulate cortex (ACC) in NP and the effect of EA on ERS in the ACC have not yet been investigated. In this study, an NP model was established by chronic constriction injury (CCI) of the left sciatic nerve in rats, and mechanical and cold tests were used to evaluate behavioral hyperalgesia. The protein expression and distribution were evaluated using western blotting and immunofluorescence. The results showed that glucose-regulated protein 78 (BIP) and inositol-requiring enzyme 1α (IRE-1α) were co-localized in neurons in the ACC. After CCI, BIP, IRE-1α, and phosphorylation of IRE-1α were upregulated in the ACC. Intra-ACC administration of 4-PBA and Kira-6 attenuated pain hypersensitivity and downregulated phosphorylation of IRE-1α, while intraperitoneal injection of 4-PBA attenuated hyperalgesia and inhibited the activation of P38 and JNK in ACC. In contrast, ERS activation by intraperitoneal injection of tunicamycin induced behavioral hyperalgesia in naive rats. Furthermore, EA attenuated pain hypersensitivity and inhibited the CCI-induced overexpression of BIP and pIRE-1α. Taken together, these results demonstrate that EA attenuates NP by suppressing BIP- and IRE-1α-mediated ERS in the ACC. Our study presents novel evidence that ERS in the ACC is implicated in the development of NP and provides insights into the molecular mechanisms involved in the analgesic effect of EA.

CAS / MDL: 11089-65-9
研究领域: 神经科学 · 疼痛管理 · 分子生物学 · 针灸
✓ 已验证 产品关联 DOI PubMed 高影响因子
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INTERNATIONAL IMMUNOPHARMACOLOGY · 2021 · IF 4.932

Isoliquiritigenin alleviates LPS/ D-GalN-induced acute liver failure by activating the PGC-1α/ Nrf2 pathway to reduce oxidative stress and inflammatory response

Lu Wang,Xiaohui Wang,Lina Kong,Shuyuan Wang,Kai Huang,Jingjing Wu,Changyuan Wang,Huijun Sun,Kexin Liu,Qiang Meng

Acute liver failure (ALF) is a dramatic liver disease characterized by large areas of inflammation. However, there are no available effective targeted drugs for ALF treatment. In the study, serum biochemical index and H&E were used to explore the amelioration of the liver histopathological changes. The oxidative stress kits, quantitative real-time PCR, western blot, immunohistochemistry, immunofluorescence staining, reactive oxygen species (ROS), and siRNA were used to elucidate the mechanisms underlying isoliquiritigenin (ISL) protection. The results showed that ISL significantly improved the liver pathological changes. Furthermore, ISL reduced oxidative stress by altering the expression of PGC-1α, Nrf2, HO-1, NQO1, Keap1, GCLC, and GCLM in damaged hepatocytes. Moreover, the levels of inflammation-related genes including NLRP3 inflammasome, IL-1β, IL-6, TNF-α, iNOS, and Mip-2 were repressed by ISL. In addition, ISL alleviated LPS/D-GalN-induced hepatocytes apoptosis by increasing the Bcl-2/Bax ratio and suppressing the expression of cleaved caspase-3. Further in vivo and in vitro evidence proved the involvement of the PGC-1α/Nrf2 signaling pathway in ISL protection. In conclusion, ISL improves the ability of anti-oxidative stress, alleviates inflammatory reaction, apoptosis, and inhibits NLRP3 inflammasome to protect lipopolysaccharide/D-galactosamine (LPS/D-GalN)-induced ALF through activating the PGC-1α/Nrf2 pathway, which provides the possibility for the treatment of ALF.

CAS / MDL: 65666-07-1
研究领域: 药理学 · 肝病学 · 免疫学 · 细胞生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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EXPERIMENTAL CELL RESEARCH · 2023 · IF 3.7

LncRNA MALAT 1/miR-625–3p/HIF-1α axis regulates the EMT of hypoxia-induced RPE cells by activating NF-κB/snail signaling

Lirong Zou,Xinling Wang,Xiao Han

The retina may undergo structural and functional damage as a result of hypoxia, which could lead to permanent blindness. As competing endogenous RNAs (ceRNAs), lncRNAs are essential in eye disorders. The biological function of lncRNA MALAT 1 and its potential mechanisms in hypoxic-ischemic retinal diseases are still unknown. MALAT 1 and miR-625–3p expression alterations in hypoxia-treated RPE cells were examined using qRT-PCR. The target binding relationships between MALAT 1 and miR-625–3p, as well as between miR-625–3p and HIF-1α, were identified utilizing bioinformatics analysis and dual luciferase reporter assay. We observed that si-MALAT 1 and miR-625–3p mimic both reduced apoptosis and epithelial-mesenchymal transition (EMT) in hypoxic RPE cells, whereas si-MALAT 1 was reversed by miR-625–3p inhibitor. Further, we carried out a mechanistic investigation, and rescue assays demonstrated that MALAT 1 sponging miR-625–3p influenced HIF-1α expression and consequently took part in the NF-κB/Snail signaling pathway , which regulated apoptosis and EMT. In conclusion, our research had shown that the MALAT 1/miR-625–3p/HIF-1α axis drove the progression of hypoxic-ischemic retinal disorders and may serve as a promising predictive biomarker for their therapeutic and diagnostic targets.

CAS / MDL: 7791-13-1
研究领域: 眼科学 · 分子生物学 · 细胞生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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JOURNAL OF ETHNOPHARMACOLOGY · 2021 · IF 4.36

Jieduquyuziyin Prescription alleviates hepatic gluconeogenesis via PI3K/Akt/PGC-1α pathway in glucocorticoid-induced MRL/lpr mice

Li-na Ji,Shan Wu,Dan-qing Fu,Si-jia Fang,Guan-qun Xie,Yong-sheng Fan,Jie Bao

Ethnopharmacological relevance Jieduquyuziyin prescription (JP) is a traditional Chinese medicine (TCM) formula. According to both TCM theory and more than a decade of clinical practice, JP has been testified to be effective for systemic lupus erythematosus (SLE) treatment as an approved hospital prescription in China. Aim of the study To determine the effect of JP on the treatment of SLE by glucocorticoid (GC) and to further examine the molecular mechanisms. Materials and methods We conducted in vivo experiments to estimate the effect of JP on hepatic gluconeogenesis in MRL/lpr mice treated with GC. Additionally, isoproterenol (ISO) induced hepatic gluconeogenesis model and GC-treated MRL/lpr mouse hepatocytes were carried out in vitro experiments to verify the effect of JP on gluconeogenesis. Results The results showed that JP combined with GC could effectively alleviate the lupus symptoms in MRL/lpr mice and improve the pathological changes of the kidney and liver. And the combination of JP reduced the side effects caused by GC, which was related to the inhibition of GC-induced hepatic gluconeogenesis in MRL/lpr mice. Specifically, JP up-regulated the expression of glucocorticoid receptor (GR) α, phosphoinositide-3-kinase (PI3K) and Akt restrained by GC to reduce the production of forkhead box O1 (FoxO1), peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α), and the gluconeogenic genes phosphoenolpyruvate carboxykinase (PEPCK) and glucose-6-phosphatase (G6Pase). In viv o, the use of JP either alone or with GC could reduce spleen enlargement , high levels of serum antibodies, aggravated urine protein and renal pathological damage in MRL/lpr mice. Furthermore, the glucose content was reduced in the liver of MRL/lpr mice treated with JP, and the liver damage and steatosis were also alleviated. In vitro , the expressions of PI3K and Akt increased and the expressions of FoxO1, PGC-1α, PEPCK and G6Pase decreased after JP treatment in ISO-treated hepatocytes. Compared with MRL/MP mice, we found that JP could significantly inhibit the expression of gluconeogenesis in the hepatocytes of MRL/lpr mice induced by GC to a greater extent. Conclusions The therapeutic effect of JP on GC-induced is likely related to hepatic gluconeogenesis, which provides a new perspective to reveal the positive role of JP in SLE.

CAS / MDL: 60-92-4 657-24-9
研究领域: 药理学 · 免疫学 · 分子生物学 · 中医
✓ 已验证 产品关联 DOI PubMed 高影响因子
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INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE · 2015 ·Vol. 56 ·期 13 ·8166-8178 · IF 3.404

Erythropoietin Protects Retinal Cells in Diabetic Rats Through Upregulating ZnT8 via Activating ERK Pathway and Inhibiting HIF-1α Expression

Guoxu Xu,Daohuan Kang,Chaoyang Zhang,Hui Lou,Chen Sun,Qian Yang,Lixia Lu,Guo-Tong Xu,Jingfa Zhang,Fang Wang

Purpose:Zinc transporter 8 (ZnT8) was downregulated in hypoxic retina, which could be rescued by hypoxia-inducible factor-1α (HIF-1α) inhibition. Erythropoietin (EPO) protects retinal cells in diabetic rats through inhibiting HIF-1α as one of its mechanisms. We hence tried to explore the effect of EPO in regulating ZnT8 and protecting retinal cells in diabetic rats and possible mechanisms.Methods:Diabetes was induced in Sprague-Dawley rats. Intravitreal injection of EPO was performed 1 month after diabetes onset. The CoCl2-treated rat Müller cell line (rMC-1) was cotreated with EPO, soluble EPO receptor (sEPOR), digoxin, or U0126. Cell viability, cell death, and intracellular zinc level were examined. The expression of ZnT8, HIF-1α, AKT, and ERK was studied.Results:In diabetic rat retinas, EPO significantly decreased HIF-1α expression and increased ZnT8 expression. In CoCl2-treated rMC-1 cells, EPO increased cell viability and decreased intracellular zinc. Erythropoietin or digoxin could activate ERK pathway, downregulate HIF-1α, and upregulate ZnT8. The effect of EPO was abolished by sEPOR and U0126. Transient knockdown of ZnT8 increased intracellular zinc level, but not to a degree that would decrease cell viability or cause cell death.Conclusions:In diabetic retinas, EPO maintains zinc homeostasis through activating the ERK pathway and downregulating HIF-1α, and thus upregulating ZnT8 expression. This work proposed a possible new protective mechanism for EPO in, and indicated a potential target for, the treatment of diabetic retinopathy.

研究领域: 眼科学 · 内分泌学 · 细胞生物学 · 分子生物学 · 糖尿病研究
✓ 已验证 DOI PubMed 高影响因子
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Asian Journal of Pharmaceutical Sciences · 2025 · IF 11.9

CeO2 Nanozyme-Embedded Thermal-Deformative Polymer for Site-Specific Chemotherapy via HIF-1α-P-gp/Lipolysis Axis Reversal

Zhiyuan Tang,Yuening Sun,Quanhua Yi,Qian Ding,Yang Ding,Jianfei Huang

The effective intracellular accumulation of doxorubicin (DOX) is crucial for improving antitumor efficacy, which is severely impeded by limited drug penetration, uncontrollable drug release, and drug resistance. In this study, a thermal-deformative polymer embedding ultrasmall ceria (CeO 2 ) was rationally designed for deep tumor drug shuttling and hypoxia reversal to improve chemotherapy. Structurally, the CeO 2 nanozyme was covalently grafted with a polymer of p(NIPAM-co-AM) that could sharply shrink for DOX loading, which was consolidated with polydopamine (PDA) film encapsulation. Thereafter, a tumor penetration guide of apolipoprotein A-I (apoA-I) conjugated iRGD peptide (apoA-I-iRGD) was further decorated onto the PDA shell via Michael addition for preparing CeO 2 P/DOX@iAPDA. With the aid of apoA-I-iRGD, CeO 2 P/DOX@iAPDA penetrated both the tumor spheroids (∼78 μm) and the tumors of the mouse model deeply. After internalization by tumor cells and triggering by low pH in lysosomes, rapid DOX release was achieved by peeling off the PDA shell and thermosensitive deformation of p(NIPAM-co-AM). CeO 2 P/DOX@iAPDA provided 66.4% tumor suppression in 4T1-derived tumor spheroids and 63.2% in 4T1-tumor-bearing mice, respectively. Preliminary mechanistic research involving western blotting and immunohistochemistry revealed that CeO 2 P/DOX@iAPDA reversed resistance through the through HIF-1α-P-gp/lipid axis. Collectively, this study intelligently integrated CeO 2 nanozymes, temperature-sensitive polymers, and imitated biochemical modifications to improve chemotherapy for breast cancer.

研究领域: 纳米技术 · 癌症治疗 · 药学科学 · 生物医学工程 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Journal of Functional Foods · 2024 · IF 3.8

Lycopene alleviates Bisphenol a-induced lipid accumulation via activating the SIRT1/PGC-1α signaling in PK15 cells

Dan Song,Yuan Liu,Kehui Wu,Manting Lyu,Yongshu Wu,Yanan Zhang,Panling Wang,Xiangchen Li

The present study sought to investigate the protective effect of Lycopene (LYC) on Bisphenol A (BPA)-induced lipid accumulation and elucidate the potential molecular mechanism. In vitro, the PK15 cells with or without LYC were exposed to BPA for 6 h to detect the lipid accumulation using Nile red’s and Oil Red O’ staining. Meanwhile, redox status, mitochondrial function, gene expression and protein levels relating to lipid accumulation were evaluated by cellular biochemical assays, immunofluorescence staining, quantitative real-time PCR (qRT-PCR) and Western blot, respectively. In addition, ROS scavenger N-acetylcysteine (NAC), SIRT1 inhibitor EX527, SIRT1 siRNA and PGC-1α siRNA were used to verify the target signaling pathways responsible for the protective effect of LYC against BPA-indcued lipid accumulation. In vivo, the twenty four male Wistar rats were randomly divided into three groups, received either BPA (50 mg/kg/day BW) or LYC (10 mg/kg/day BW) orally for 60 days. The kidney tissues were evaluated by HE’s and Oil Red O’s staining, lipid-associated genes and proteins expression were detected through qRT-PCR and Western blot. The results showed that BPA-exposed PK15 cells and rats had increased lipid droplets with elevated transcription of lipogenic factors SREBP1 and PPARγ, and down-regulated PPARα expression, and which is accompanied by redox imbalance and abnormal mitochondrial function. Conversely, LYC prevented BPA-induced lipid metabolism disorder and lipid accumulation through impeding ROS overproduction. Moreover, PK15 cells and rats exposed to BPA showed decrease in SIRT1 and PGC-1α levels, whereas LYC blocked the decrease of SIRT1 and PGC-1α protein levels. Furthermore, inhibition or silence of SIRT1 and PGC-1α abrogated the improvements of LYC on ROS generation, mitochondrial mass impairement and lipid accumulation in BPA-treated PK15 cells. Collectively, these findings indicate that SIRT1/PGC-1α signaling pathway is involved in the protective effect of LYC on BPA-induced lipid accumulation. These results also provide a potential promising therapeutic of LYC against BPA-induced lipid accumulation in kidney cells and organs.

CAS / MDL: 80-05-7
研究领域: 药理学 · 细胞生物学 · 分子生物学 · 毒理学
✓ 已验证 产品关联 DOI 高影响因子
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Oxidative Medicine and Cellular Longevity · 2022 · IF 7.31

Rhein Ameliorates Cognitive Impairment in an APP/PS1 Transgenic Mouse Model of Alzheimer’s Disease by Relieving Oxidative Stress through Activating the SIRT1/PGC-1α Pathway

Zhihui Yin,Demin Gao,Ke Du,Chen Han,Yuhan Liu,Ying Wang,Xiaoyan Gao

Mitochondrial oxidative stress plays an important role in the pathogenesis of Alzheimer’s disease (AD). Recently, antioxidant therapy has been considered an effective strategy for the treatment of AD. Our previous work discovered that rhein relieved mitochondrial oxidative stress in β-amyloid (Aβ) oligomer-induced primary neurons by improving the sirtuin 1 (SIRT1)/peroxisome proliferator-activated receptor gamma coactivator 1-alpha- (PGC-1α-) regulated mitochondrial biogenesis. While encouraging results have been provided, mechanisms underlying the beneficial effect of rhein on AD are yet to be elucidated in vivo. In this study, we evaluated the therapeutic effect of rhein on an APP/PS1 transgenic (APP/PS1) mouse model of AD and explored its antioxidant mechanisms. As a result, rhein significantly reduced Aβ burden and neuroinflammation and eventually ameliorated cognitive impairment in APP/PS1 mice. Moreover, rhein reversed oxidative stress in the brain of APP/PS1 mice and protected neurons from oxidative stress-associated apoptosis. Further study revealed that rhein promoted mitochondrial biogenesis against oxidative stress by upregulating SIRT1 and its downstream PGC-1α as well as nuclear respiratory factor 1. Improved mitochondrial biogenesis not only increased the activity of superoxide dismutase to scavenge excess reactive oxygen species (ROS) but also repaired mitochondria by mitochondrial fusion to inhibit the production of ROS from the electron transport chain. Notably, the exposure of rhein in the brain analyzed by tissue distribution study indicated that rhein could permeate into the brain to exert its therapeutic effects. In conclusion, these findings drive rhein to serve as a promising therapeutic antioxidant for the treatment of AD. Our research highlights the therapeutic efficacy for AD through regulating mitochondrial biogenesis via the SIRT1/PGC-1α pathway.

CAS / MDL: 478-43-3
研究领域: 神经科学 · 药理学 · 分子生物学 · 老年医学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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ACS Applied Materials & Interfaces · 2017 · IF 7.504

Trilayer Three-Dimensional Hydrogel Composite Scaffold Containing Encapsulated Adipose-Derived Stem Cells Promotes Bladder Reconstruction via SDF-1α/CXCR4 Pathway

Dongdong Xiao,Hao Yan,Qiong Wang,Xiangguo Lv,Ming Zhang,Yang Zhao,Zhe Zhou,Jiping Xu,Qian Sun,Kang Sun,Wei Li,Mujun Lu

Bladder acellular matrix graft-alginate dialdehyde-gelatin hydrogel-silk mesh (BAMG-HS) encapsulated with adipose-derived stem cells (ASCs) was evaluated in a rat model of augmentation cystoplasty, including BAMG-HS-ASCs (n = 18, subgroup n = 6 for 2, 4, and 12 weeks), acellular BAMG-HS (n = 6 for 12 weeks) and cystotomy control (n = 6 for 12 weeks) groups. Equipped with good cytocompatibility and superior mechanical properties (elastic modulus: 5.33 ± 0.96 MPa, maximum load: 28.90 ± 0.69 N), BAMG-HS acted a trilayer “sandwich” scaffold with minimal interference in systemic homeostasis. ASCs in BAMG-HS promoted morphological and histological bladder restoration by accelerating scaffold degradation (p < 0.05), ameliorating fibrosis (p < 0.05) and inflammation (p < 0.01). Additionally, ASCs facilitated the recovery of bladder function by enhancing smooth muscle regeneration (p < 0.05), innervation (p < 0.01) and angiogenesis (p < 0.001). Except for a small number of endothelium-differentiated ASCs, the pro-angiogenic effects of ASCs were mainly related to ERK1/2 phosphorylation in the downstream of SDF-1α/CXCR4 pathway.

CAS / MDL: 9000-70-8 7790-28-5
研究领域: 组织工程 · 再生医学 · 干细胞研究 · 泌尿外科
✓ 已验证 产品关联 DOI PubMed 高影响因子
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MOLECULAR MEDICINE · 2024 ·Vol. 30 ·期 1 ·1-15 · IF 6

Metabolic effects of quercetin on inflammatory and autoimmune responses in rheumatoid arthritis are mediated through the inhibition of JAK1/STAT3/HIF-1α signaling

Zhang FengQi,Zhang YiYang,Zhou JiaWang,Cai Ying,Li ZhiYu,Sun Jing,Xie ZhiJun,Hao GuiFeng

Background Rheumatoid arthritis, a chronic autoimmune disease, is characterized by synovial hyperplasia and cartilage erosion. Here, we investigated the potential mechanism of action of quercetin, the main component of flavonoids, in treating rheumatoid arthritis. Object To examine the anti-arthritic effects of quercetin and elucidate the specific mechanisms that differentiate its metabolic effects on autoimmune and inflammatory responses at the synovial cell level. Methods We created a collagen-induced arthritis (CIA) model in Wistar rats, which were administered quercetin (50 or 100 mg/kg) continuously for four weeks via stomach perfusion. The arthritis score, histopathological staining, radiological assessment, and serum biochemical parameters were used to study the impact of quercetin on disease improvement. Additionally, immunofluorescence was employed to detect JAK1/STAT3/HIF-1α expression in rat joints. Moreover, the effects of quercetin (20, 40, and 80 µmol/L) on the properties and behavior of synovial fibroblasts were evaluated in an in vitro MH7A cell model using flow cytometry, CCK8, and transwell assays. Further, the mRNA expression levels of inflammatory cytokines IL1β, IL6, IL17, and TNFα were assessed by quantitative real-time PCR. Glucose, lactate, lactate dehydrogenase, pyruvate, pyruvate dehydrogenase, and adenosine triphosphate assay kits were employed to measure the metabolic effects of quercetin on synovial fibroblasts. Finally, immunoblotting was used to examine the impact of quercetin on the JAK1/STAT3/HIF-1α signaling pathway in synovial fibroblasts. Results In vivo experiments confirmed the favorable effects of quercetin in CIA rats, including an improved arthritis score and reduced ankle bone destruction, in addition to a decrease in the pro-inflammatory cytokines IL-1β, IL-6, IL-17, and TNF-α in serum. Immunofluorescence verified that quercetin may ameliorate joint injury in rats with CIA by inhibiting JAK1/STAT3/HIF-1α signaling. Various in vitro experiments demonstrated that quercetin effectively inhibits IL-6-induced proliferation of MH7A cells and reduces their migratory and invasive behavior, while inducing apoptosis and reducing the expression of the pro-inflammatory cytokines IL1β, IL6, IL17, and TNFα at the mRNA level. Quercetin caused inhibition of glucose, lactate, lactate dehydrogenase, pyruvate, and adenosine triphosphate and increased pyruvate dehydrogenase expression in MH7A cells. It was further confirmed that quercetin may inhibit energy metabolism and inflammatory factor secretion in MH7A cells through JAK1/STAT3/HIF-1α signaling. Conclusions Quercetin’s action on multiple target molecules and pathways makes it a promising treatment for cartilage injury in rheumatoid arthritis. By reducing joint inflammation, improving joint metabolic homeostasis, and decreasing immune system activation energy, quercetin inhibits the JAK1/STAT3/HIF-1α signaling pathway to improve disease status.

研究领域: 免疫学 · 药理学 · 风湿病学 · 分子生物学
✓ 已验证 DOI PubMed 高影响因子
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JOURNAL OF PHARMACY AND PHARMACOLOGY · 2023 · IF 3.3

Synergistic anti-tumour activity of ginsenoside Rg3 and doxorubicin on proliferation, metastasis and angiogenesis in osteosarcoma by modulating mTOR/HIF-1α/VEGF and EMT signalling pathways

Zeng Xiangfeng,Liu Shengyao,Yang Hua,Jia Menglei,Liu Wei,Zhu Wenting

ObjectivesThe most common cause of osteosarcoma (OS) death is lung metastasis. Currently, doxorubicin is the primary chemotherapy drug used to treat OS, however, it is not effective in inhibiting metastasis, and it has obvious cardiotoxicity. The anticancer activity of ginsenoside Rg3 has been demonstrated in a variety of malignant tumours. The aim of this study was to determine the potential role of ginsenoside Rg3 and doxorubicin in OS and the possible mechanism.MethodsThe potential synergistic effects of ginsenoside Rg3 and doxorubicin on human osteosarcoma cells 143B and U2OS, human umbilical vein endothelial cells, and mice receiving 143B xenografts and lung metastases were investigated.Key findingsOur study demonstrated that the combination of ginsenoside Rg3 and doxorubicin significantly inhibited cell proliferation, metastasis and angiogenesis in vitro. Mechanically, the anti-tumour activity of ginsenoside Rg3 and doxorubicin by modulating mTOR/HIF-1α/VEGF and EMT signalling pathways. Furthermore, ginsenoside Rg3 combined with doxorubicin inhibits tumour growth and lung metastasis in 143B-derived murine osteosarcoma models. More importantly, ginsenoside Rg3 can effectively ameliorate doxorubicin-induced weight loss and cardiotoxicity in mice.ConclusionsConsequently, we concluded that the combination of ginsenoside Rg3 and doxorubicin displayed an evidently synergistic effect, which has the potential to be used as an effective and safe therapeutic approach for OS treatment.

CAS / MDL: 14197-60-5 38243-03-7
研究领域: 肿瘤学 · 药理学 · 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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