ACS Omega
·
2024
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IF 3.7
Hong Duan,Han Li,Tianyi Liu,Yuan Chen,Mengmeng Luo,Ying Shi,Jing Zhou,Marwan M. A. Rashed,Kefeng Zhai,Lili Li,Zhaojun Wei
Atherosclerosis (AS) is a common cardiovascular disease that poses a major threat to health. Schisandra chinensis is a medicinal and edible plant that is commonly used to treat cardiovascular diseases. In this paper, HPLC was used to detect and analyze 5 different components in Schisandra chinensis. Network pharmacological predictions highlight the PI3K/AKT/mTOR pathway as an important pharmacological pathway. The effective ingredient Schisandrin C was screened by the molecular docking technique. ox-LDL-induced HUVECs were used to construct the atherosclerosis model for further experimental verification. The results showed that Schisandrin C interfered with the PI3K/AKT/mTOR autophagy pathway. This study lays a foundation for the further application of Schisandrin C in the prevention and treatment of atherosclerosis in the future.
研究领域:
心血管疾病
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药理学
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分子生物学
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细胞生物学
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DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 32
·79423-79436
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IF 5.8
Zhang Jingni,Wang Hongjuan,Chen Huan,Liu Yong,Wang An,Hou Hongwei,Hu Qingyuan
Long-term use of alcohol and cigarettes is associated with millions of deaths each year, directly or indirectly. The carcinogen acetaldehyde is both a metabolite of alcohol and the most abundant carbonyl compound in cigarette smoke, and co-exposure of them is usual and primarily leads to liver and lung injury, respectively. However, few studies have explored the synchronic risk of acetaldehyde on the liver and lung. Here, we investigated the toxic effects and related mechanisms of acetaldehyde based on normal hepatocytes and lung cells. The results showed that acetaldehyde caused significant dose-dependent increases of cytotoxicity, ROS level, DNA adduct level, DNA single/double-strand breakage, and chromosomal damage in BEAS-2B cells and HHSteCs, with similar effects at the same doses. The gene and protein expression and phosphorylation of p38MAPK, ERK, PI3K, and AKT, key proteins of MAPK/ERK and PI3K/AKT pathways regulating cell survival and tumorigenesis, were significantly upregulated on BEAS-2B cells, while only protein expression and phosphorylation of ERK were upregulated significantly, the other three decreased in HHSteCs. When either the inhibitor of the four key proteins was co-treated with acetaldehyde, cell viabilities were almost unchanged in BEAS-2B cells and HHSteCs. Thus, acetaldehyde could synchronically induce similar toxic effects in BEAS-2B cells and HHSteCs, and MAPK/ERK and PI3K/AKT pathways seem to be involved in different regulatory mechanisms.
研究领域:
毒理学
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细胞生物学
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分子生物学
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致癌机制
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DOI
PubMed
高影响因子
EUROPEAN JOURNAL OF PHARMACOLOGY
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2020
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IF 3.263
Hui Zhang,Junfeng Hui,Jing Yang,Jianjun Deng,Daidi Fan
Eurocristatine (ECT) is an alkaloid isolated from Eurotium cristatum , and it has been used in multiple applications. However, its use as a treatment for type 2 diabetes mellitus (T2DM) has not yet been reported. In this study, we investigated the anti-T2DM effect of ECT and explored its potential molecular mechanism. In vivo , after treatment with ECT (20, 40 mg/kg) for 6 weeks, fasting blood glucose (FBG) was remarkably reduced in db/db mice. Moreover, glucose tolerance, insulin sensitivity and hyperinsulinemia were ameliorated treatment with ECT. The values of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) also showed that ECT could alleviate liver toxicity caused by diabetes in db/db mice. In vitro , ECT (15 and 30 μM) alleviated insulin resistance by increasing glucose consumption, glucose uptake and glycogen content in high glucose-induced HepG2 cells. The Western blotting (WB) results showed that ECT could upregulate the expression of phosphatidylinositol 3-kinase (PI3K), increase the phosphorylation of insulin receptor substrate 1 (IRS1) and protein kinase B (AKT) in vivo and in vitro . Besides, ECT improved the glycogen content by inhibiting the expression of glycogen synthase kinase3β (GSK3β) and promoting that of glycogen synthase (GS). Furthermore, administration of the PI3K/AKT signaling pathway inhibitor LY294002 abolished the beneficial effects of ECT. These findings are the first to verify that ECT has the potential to improve glucose metabolism and alleviate insulin resistance by activating the PI3K/AKT signaling pathway in db/db mice.
研究领域:
药理学
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糖尿病研究
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分子生物学
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DOI
PubMed
高影响因子
MOLECULAR NEUROBIOLOGY
·
2023
·
IF 5.1
Wu Yuhan,Zhu Zhanpeng,Lan Tian,Li Shuhan,Li Ye,Wang Changmin,Feng Yabo,Mao Xueqin,Yu Shuyan
Depression is a common psychological disease with high morbidity and mortality. Recently, the involvement of synaptic plasticity in the pathogenesis of depression has shed light on the direction of developing novel antidepressants. Levomilnacipran is a newly approved medication for the treatment of adult major depressive disorder. However, the detailed mechanisms underlying its antidepressant-like effects have yet to be illuminated. In this study, we aimed to investigate the role of levomilnacipran in regulating synaptic plasticity and explore the possible molecular mechanisms of its antidepressant effects using a rat model of depression induced by lipopolysaccharide (LPS). The results demonstrated that levomilnacipran (30 mg/kg, i.p.) significantly ameliorated depression-like behaviors in rats, alleviated the dysregulation of synaptic plasticity, and suppressed neuroinflammation within hippocampus induced by LPS-treatment. Levomilnacipran increased the expression of postsynaptic dense 95 (PSD-95) and synaptophysin (Syn) and reversed the imbalance between pro- and anti-inflammatory cytokines within hippocampus of depressed rats. Additionally, levomilnacipran elevated expression level of brain-derived neurotrophic factor (BDNF), accompanied by increased tyrosine kinase B (TrkB), phosphorylated phosphatidylinositol 3-kinase (PI3K), phosphorylated protein kinase B (p-Akt), and phosphorylated mammalian target of rapamycin (p-mTOR). Taken together, these results suggest that levomilnacipran may exert antidepressant effects via upregulating BDNF/TrkB mediated PI3K/Akt/mTOR signaling pathway to improve synaptic plasticity. These findings reveal potential mechanisms for the antidepressant effects of levomilnacipran and offer new insights into the treatments for depression. Graphical Abstract
研究领域:
神经科学
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药理学
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分子生物学
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精神病学
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DOI
PubMed
高影响因子
Frontiers in Pharmacology
·
2024
·
IF 4.4
Huang Yuechang,Zhang Xingmin,Li Qian,Zheng Wende,Wu Panpan,Wu Rihui,Chen Wen-Hua,Li Chen
Type 2 diabetes mellitus is regarded as a chronic metabolic disease characterized by hyperglycemia. Long-term hyperglycemia may result in oxidative stress, damage pancreatic β-cell function and induce insulin resistance. Herein we explored the anti-hypoglycemic effects and mechanisms of action of N-p-coumaroyloctopamine (N-p-CO) in vitro and in vivo. N-p-CO exhibited high antioxidant activity, as indicated by the increased activity of SOD, GSH and GSH-Px in HL-7702 cells induced by both high glucose (HG) and palmitic acid (PA). N-p-CO treatment significantly augmented glucose uptake and glycogen synthesis in HG/PA-treated HL-7702 cells. Moreover, administration of N-p-CO in diabetic mice induced by both high-fat diet (HFD) and streptozotocin (STZ) not only significantly increased the antioxidant levels of GSH-PX, SOD and GSH, but also dramatically alleviated hyperglycemia and hepatic glucose metabolism in a dose-dependent manner. More importantly, N-p-CO upregulated the expressions of PI3K, AKT and GSK3β proteins in both HG/PA-induced HL-7702 cells and HFD/STZ-induced mice. These findings clearly suggest that N-p-CO exerts anti-hypoglycemic and anti-oxidant effects, most probably via the regulation of a PI3K/AKT/GSK3β signaling pathway. Thus, N-p-CO may have high potentials as a new candidate for the prevention and treatment of diabetes.
研究领域:
药理学
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内分泌学
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代谢性疾病
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DOI
PubMed
高影响因子
PHYTOMEDICINE
·
2025
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IF 8.3
Chenying Zeng,Linjian Chen,Jiajie Lin,Zipeng Xiao,Qingqiang Tu,Wenhui Yu,Weihao Zhang,Qibo Li,Yanfeng Wu,Zhongyu Xie,Ziji Zhang
Background The shift in BMSC differentiation potential toward adipogenesis at the expense of osteogenesis is a critical mechanism underlying reduced bone formation in osteoporosis. Necroptosis has been implicated as a key driver of bone-fat imbalance in osteoporosis, though its mechanisms remain unclear. Taraxasterol (TAX), a bioactive triterpenoid derived from Taraxacum officinale , exhibits antitumor, antioxidant, and immunomodulatory properties. However, its potential role in osteoporosis has not yet been explored. Objective This study aimed to investigate whether TAX alleviates osteoporosis by regulating necroptosis and osteogenic–adipogenic differentiation in BMSCs, and to elucidate the underlying molecular mechanisms. Methods An ovariectomized (OVX) mouse model of osteoporosis was established for in vivo evaluation. Treatment groups received daily oral administration of TAX (5 or 20 mg/kg), with estradiol (E₂, 10 μg/kg) serving as a positive control. Bone microarchitecture and therapeutic response were assessed via micro-CT and immunohistochemistry, while femoral necroptosis and differentiation markers were evaluated by immunostaining. For in vitro studies, BMSCs isolated from osteoporosis patients were treated with the necroptosis inducer TSZ (TNF-α, SM-164, Z-VAD-FMK), with or without TAX. Flow cytometry was used to analyze the phenotype of MSCs. To identify molecular targets and mechanisms, an integrated approach combining network pharmacology, RNA sequencing, SPR assays, and molecular docking was employed. Subsequent analyses included western blotting, PI staining, and RNA interference to assess TAX-regulated necroptosis and PI3K/AKT/PPARγ pathway activity. ARS and ORO staining were employed to analyze osteogenic and adipogenic differentiation, respectively, and mitochondrial function was evaluated with TMRE and MitoSOX Red probes. Results TAX (20 mg/kg) significantly ameliorated bone loss in OVX mice, suppressed femoral necroptotic signaling, and reversed osteogenic–adipogenic imbalance in OVX-derived BMSCs. In vitro , TAX pretreatment attenuated TSZ-induced differentiation imbalance and necroptosis in patient-derived BMSCs and mitigated mitochondrial damage. Integrated network pharmacology and RNA sequencing revealed that TAX targets the PI3K/AKT/PPARγ axis. Immunohistochemical analysis demonstrated upregulation of the PI3K/AKT/PPARγ axis in the femurs of OVX mice following TAX administration. Molecular docking and SPR assays confirmed effective binding between TAX and PI3K. The protective effects of TAX were abolished by the PI3K inhibitor LY294002. Furthermore, TAX enhanced the rebalancing of osteogenic–adipogenic differentiation in PPARγ-silenced BMSCs. Conclusion Our study reveals for the first time that TAX restores osteogenic-adipogenic equilibrium in OP-BMSCs and promotes bone regeneration through PI3K/AKT/PPARγ activation and mitochondrial protection-mediated suppression of necroptosis. These results position TAX as a promising therapeutic candidate for osteoporosis.
研究领域:
药理学
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分子生物学
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内分泌学
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干细胞研究
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骨代谢
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DOI
PubMed
高影响因子
Drug Delivery and Translational Research
·
2025
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IF 5.5
Xie Ruiye,Liu Zhen,Zheng Jingjing,Tan Qiwen,Wu Haitao,Liang Yong
Alzheimer’s disease (AD) is a neurodegenerative disorder strongly associated with aging, and Dauricine (DAU) has demonstrated significant neuropharmacological properties for AD treatment. However, its bioavailability is significantly limited when administered orally, leaving the mechanisms underlying its effects on AD largely unexplored. In this study, a DAU-loaded thermosensitive gel was formulated for delivery via the nasal-nerve route, and its potential to enhance the bioavailability of DAU in rat plasma and cerebrospinal fluid (CSF) was assessed through a pharmacokinetic study. The anti-Alzheimer’s disease (AD) mechanism of DAU was investigated using network pharmacology approaches, molecular docking, and dynamics simulations, complemented by in vivo experimental validation. DAU can be effectively incorporated into a thermosensitive gel and administered to the brain within 30 min via intranasal delivery. Following nasal administration, the pharmacokinetic parameters of DAU in cerebrospinal fluid and plasma were significantly elevated compared to oral administration ( ** P < 0.01), indicating a substantial improvement in bioavailability at equivalent doses. Behavioral studies demonstrated that DAU (dose of 1 mg/kg and 2 mg/kg in gel) enhanced cognitive function in intracerebroventricular-streptozotocin (ICV-STZ) rats and decelerated aging processes by reversing oxidative stress and mitigating neuronal apoptosis. Additionally, DAU contributed to lowering blood glucose levels, increasing insulin-like growth factor 1 (IGF-1) content, and reducing insulin resistance. Network pharmacological analysis, molecular docking, molecular dynamics simulations, and in vivo experiments collectively suggested that DAU exerted significant therapeutic effects on Alzheimer’s disease by inhibiting the PI3K/AKT/mTOR pathway. Our study demonstrates a significant enhancement in the bioavailability of DAU in the brain via nasal-nerve delivery route and also this research is the first to report that DAU ameliorates cognitive impairment in ICV-STZ rats through the PI3K/AKT/mTOR pathway. Our findings contribute to the scientific understanding of DAU’s potential in Alzheimer’s disease treatment and offer a novel experimental foundation for the development of anti-Alzheimer’s drugs. Graphic abstract
研究领域:
神经科学
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药剂学
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药理学
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药物递送
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分子生物学
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY & BIODIVERSITY
·
2023
·Vol. 20
·期 4
·e202200523
·
IF 2.9
Zhonghua An,Xuelin Feng,Mengjia Sun,Yifan Wang,Hongbo Wang,Yanling Gong
Chamomile essential oil (CEO) is extracted from chamomile and mainly used in aromatherapy. The chemical constituents and its antitumor activity on Triple-negative breast cancer (TNBC) was explored in the present study. Gas chromatography-mass spectrometry (GC/MS) was employed to analyze the chemical constituents of CEO. The cell viability, migration and invasion of TNBC cell MDA-MB-231 were measured using MTT, wound scratch and Transwell assay, respectively. The protein expression of PI3K/Akt/mTOR signaling pathway was determined by Western blot. CEO is rich in terpenoids (63.51 %), among which the identified terpenoids and their derivatives are mainly Caryophyllene (29.57 %), d-Cadinene (12.81 %), Caryophyllene oxide (14.51 %), etc. Three concentration of CEO (1, 1.5, 2 μg/mL) significantly inhibited the proliferation, migration and invasion of MDA-MB-231 cells with a dose dependent manner. Moreover, the phosphorylation of PI3K, Akt and mTOR was inhibited by CEO. The results revealed that there was abundant terpenoids in the CEO which account for 63.51 %. CEO significantly inhibited the proliferation, migration and invasion of MDA-MB-231 cells, exhibiting antitumor effect on TNBC. The antitumor effect of CEO might attribute to its inhibition on PI3K/Akt/mTOR signaling pathway. However, further study should be conducted in more TNBC cell lines and animal models to provide further evidence for TNBC treatment by CEO.
研究领域:
肿瘤学
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药理学
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分子生物学
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细胞生物学
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分析化学
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产品关联
DOI
PubMed
高影响因子
PHYTOMEDICINE
·
2022
·
IF 6.656
Zhonghao Li,Qinmei Sun,Qingyang Liu,Xinru Mu,Hui Wang,Han Zhang,Fenfen Qin,Qisheng Wang,Dengyun Nie,Anlong Liu,Qian Li,Jianjian Ji,Yongwei Jiang,Shengfeng Lu,Qian Wang,Zhigang Lu
Background Opioids are widely used in clinical practice. However, their long-term administration causes respiratory depression , addiction, tolerance, and severe immunosuppression . Traditional Chinese medicine (TCM) can alleviate opioid-induced adverse effects. Compound 511 is particularly developed for treating opioid addiction, based on Jiumi Liangfang, an ancient Chinese drug treatment and rehabilitation monograph completed in 1833 A.D. It is an herbal formula containing eight plants, each of them contributing to the overall pharmacological effect of the product: Panax ginseng C. A. Meyer (8.8%), Astragalus membranaceus (Fisch.) (18.2%), Datura metel Linn. (10.95%), Corydalis yanhusuo W. T. Wang (14.6%), Acanthopanar gracilistμlus W. W. Smith (10.95%), Ophiopogon japonicus (Linn. f.) Ker-Gawl. (10.95%), Gynostemma pentaphyllum (Thunb.) Makino (10.95%), Polygala arvensis Willd. (14.6%). This formula effectively ameliorates opioid-induced immunosuppression. However, the underlying mechanism remains unclear. Purpose To reveal the effects of Compound 511 on the immune response of morphine-induced immunosuppressive mice and their potential underlying molecular mechanism. This study provides information for a better clinical approach and scientific use of opioids. Methods Immunosuppression was induced in mice by repeated morphine administration. Th1/Th2/Th17/Treg cell levels were measured using flow cytometry. Splenic transcription factors of Th1/Th2/Th17/Treg and outputs of the regulatory PI3K/AKT/mTOR signaling pathway were determined. Subsequently, methicillin-resistant Staphylococcus aureus (MRSA) was administered intranasally to morphine-induced immunosuppressive mice pretreated with Compound 511. Their lung inflammatory status was assessed using micro-computer tomography (CT), hematoxylin and eosin (H&E) staining, and enzyme-linked immunosorbent assay (ELISA). Results Compared to morphine, Compound 511 significantly decreased the immune organ indexes of mice, corrected the Th1/Th2 and Treg/Th17 imbalance in the immune organs and peripheral blood, reduced the mRNA levels of FOXP3 and GATA3 , and increased those of STAT3 and T-bet in the spleen . It improved immune function and reduced MRSA-induced lung inflammation. Conclusion Compound 511 ameliorates opioid-induced immunosuppression by regulating the balance of Th1/Th2 and Th17/Treg via PI3K/AKT/mTOR signaling pathway. Thus, it effectively reduces susceptibility of morphine-induced immunosuppressive mice to MRSA infection .
研究领域:
药理学
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免疫学
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微生物学
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中药学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
BIOMATERIALS
·
2025
·
IF 12.9
Liyang Gong,Le Chang,Siyu Chen,Xuan Wei,Huiping Du,Jiamin Cheng,Xiaoxuan Chen,Zhang Yuan,Pan Zhao,Meijuan Geng,Hui Yang,Kaiyong Cai,Liangliang Dai
Hydrogen sulfide (H 2 S) gas therapy is beneficial for accelerating wound healing and alleviating the inflammatory process, but is seriously hindered by insufficient delivery and unsustainable release in vivo . This study presents a multifunctional injectable hydrogel, OC@ε-PL-SATO, composed of oxidized hyaluronic acid and N-acetylcysteine (NAC) as an initiator, carboxymethyl chitosan and S-aroylthiooxime modified ε-Poly-( l -lysine) (ε-PL-SATO). ε-PL-SATO is a NAC-responsive H 2 S donor. OC@ε-PL-SATO hydrogel is designed for the desired wound healing process, with rapid gelation (<30 s) and a sustained H 2 S release. After mixing and gelling, H 2 S could be long-term released from the hydrogel and effectively drives macrophages toward M2 polarization, thereby ameliorating the inflammatory response. Revealed by transcriptome analysis, the underlying mechanism is that OC@ε-PL-SATO hydrogel releasing H 2 S inhibits LPS-mediated inflammatory responses in RAW264.7 cells by interfering with phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling and NF-κB activation. Furthermore, the OC@ε-PL-SATO hydrogel effectively eliminates the bacterial burden and alleviates the accompanying inflammation in a rat model of cutaneous wound infection. Importantly, the sustained generation of H 2 S gas significantly promotes angiogenesis and collagen deposition, ultimately accelerating the wound repair. In conclusion, this study provides a multifunctional injectable hydrogel with rapid gelatinization and continuous H 2 S release for accelerating the infected wound healing.
研究领域:
生物材料
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药剂学
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伤口愈合
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免疫学
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炎症
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL IMMUNOPHARMACOLOGY
·
2023
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IF 5.6
WenBin Liu,ZhengWei Tan,YueChao Zhao,YanNa Zhao,XiaoLing Yu,BoLin Wang,FengLin Shen,Ai Mi,JinJian Lan,RuiLan Gao
Panaxadiol saponin (PND) is a latent targeted drug for the treatment of aplastic anemia (AA). In this study, we examined the effects of PND on ferroptosis in iron-overload AA and Meg-01 cells. We utilized RNA-seq to analyze differentially expressed genes in iron-induced Meg-01 cells treated with PND. The effects of PND or combined with deferasirox (DFS) on iron deposition, labile iron pool (LIP), several ferroptosis events, apoptosis, mitochondrial structure, as well as ferroptosis-, Nrf2/HO-1-, and PI3K/AKT/mTOR pathway-related markers in iron-induced Meg-01 cells were examined by Prussian-blue staining, flow cytometer, ELISA, Hoechst 33342 staining, transmission electron microscope, and Western blot assays, respectively. Additionally, an AA mice model with iron overload was established. Then, the blood routine was assessed, and the number of bone marrow-derived mononuclear cells (BMMNCs) in mice was counted. Also, serum iron, ferroptosis events, apoptosis, histology, T lymphocyte percentage, ferroptosis-, Nrf2/HO-1-, and PI3K/AKT/mTOR signaling-related targets in primary megakaryocytes of AA mice with iron overload were assessed by commercial kits, TUNEL staining, hematoxylin and eosin (H&E) staining, Prussian blue staining, flow cytometer, and qRT-PCR analysis, respectively. PND suppressed iron-triggered iron overload, and apoptosis, and ameliorated mitochondrial morphology in Meg-01 cells. Importantly, PND ameliorated ferroptosis-, Nrf2/HO-1-, and PI3K/AKT/mTOR signaling-related marker expressions in iron-induced Meg-01 cells or primary megakaryocytes of AA mice with iron overload. Moreover, PND ameliorated body weight, peripheral blood cell counts, the number of BMMNCs, and histological injury in the iron-overload AA mice. Also, PND improved the percentage of T lymphocytes in the iron-overload AA mice. PND attenuates ferroptosis against iron-overload AA mice and Meg-01 cells via activating Nrf2/HO-1 and PI3K/AKT/mTOR pathway and is a promising novel therapeutic candidate for AA.
研究领域:
药理学
·
血液学
·
细胞生物学
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分子生物学
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DOI
PubMed
高影响因子
FEBS Open Bio
·
2024
·
IF 2.8
Linqian Chen,Meifeng Chen,Yan Xie,Yuyan Zhang,Shutian Mo,Yongfei He,Tianyi Liang,Yuan Liao,Renbin Huang,Guodong Huang,Chuangye Han,Thi Thai Hoa Pham
Several studies have suggested a potential antitumor effect of 2-dodecyl-6-methoxycyclohexa-2,5-diene-1,4-dione (DMDD). To further understand the mechanism of action of this compound, we investigated its effect on the phosphatidylinositol-3-kinase (PI3K)/serine–threonine kinase (Akt)/mammalian target of rapamycin (mTOR) signaling pathway. We show that DMDD application significantly inhibited the proliferation of breast cancer cell lines MDA-MB-231 and ER-α positive MCF-7. Furthermore, DMDD application resulted in increased intracellular reactive oxygen species (ROS) levels, apoptosis and autophagy, whereas it downregulated the expression of PI3K, Akt and mTOR mRNA and proteins, and increased the expression of LC3II/I and p62 proteins. In a mouse breast cancer xenograft model, DMDD inhibited tumor growth. Expression analyses suggest that ROS levels were higher in DMDD treated tumor tissues, whereas immunohistochemical analyses suggest that apoptotic cells were more prevalent in the DMDD treated group compared to the control group. Taken together, our results suggest that the molecular mechanism of action of DMDD may involve the enhancement of breast cancer autophagy through the PI3K/Akt/mTOR signaling pathway by mediating ROS expression.
研究领域:
肿瘤学
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细胞生物学
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药理学
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癌症研究
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产品关联
DOI
PubMed
高影响因子