Project description:This study explores how quercetin may treat endometriosis (EMs) by combining network pharmacology and transcriptome sequencing approaches. Through network pharmacology, 132 shared targets between quercetin and EMs were identified, with KEGG pathway analysis suggesting that the MAPK signaling pathway could be a significant therapeutic target. Transcriptome sequencing revealed that PDGFRB was highly expressed in ectopic endometrial tissue, a finding confirmed by immunohistochemistry (IHC) showing elevated levels of PDGFRB, RAS, RAF1, and ERK1/2 in ectopic lesions. In an EMs mouse model, quercetin treatment led to a marked reduction in ectopic lesion volume, lowered adhesion scores, and decreased expression of PDGFRB, RAS, RAF1, and ERK1/2 in endometrial tissues. Additionally, the knockdown of PDGFRB in endometriosis cells inhibited their proliferation, invasion, and migration, processes critical to EMs pathology. Quercetin treatment further suppressed cell viability and downregulated the protein expression of RAS, phosphorylated RAF1, RAF1, phosphorylated ERK, and ERK1/2. These findings collectively suggest that quercetin exerts its therapeutic effect in endometriosis by regulating the MAPK signaling pathway via PDGFRB, thereby reducing EMs cell proliferation, invasion, and migration. This study provides insights into quercetin’s multi-targeted mechanism of action in endometriosis treatment.
Project description:Jiawei Foshou San (JFS) is the new formula originated from classic Foshou San formula, composed with ligustrazine, ferulic acid, and tetrahydropalmatine. Previously JFS inhibited the growth of endometriosis (EMS) with unclear mechanism, especially in metastasis, invasion, and epithelial-mesenchymal transition. In this study, network pharmacology was performed to explore potential mechanism of JFS on EMS. Through compound-compound target and compound target-EMS target networks, key targets were analyzed for pathway enrichment. MMP-TIMP were uncovered as one cluster of the core targets. Furthermore, autologous transplantation of EMS rat's model were used to evaluate in vivo effect of JFS on invasion, metastasis and epithelial-mesenchymal transition. JFS significantly suppressed the growth, and reduced the volume of ectopic endometrium, with modification of pathologic structure. In-depth study, invasion and metastasis were restrained after treating with JFS through decreasing MMP-2 and MMP-9, increasing TIMP-1. Meanwhile, JFS promoted E-cadherin, and attenuated N-cadherin, Vimentin, Snail, Slug, ZEB1, ZEB2, Twist. In brief, anti-EMS effect of JFS might be related to the regulation of epithelial-mesenchymal transformation, thereby inhibition of invasion and metastasis. These findings reveal the potential mechanism of JFS on EMS and the benefit for further evaluation.
Project description:Network pharmacology study indicated that Puerarin (PUE), wogonin (WOG), berberine (BER) and glycyrrhetinic acid (GLY) were the active components in GQD and performed synergistic effect on the targets of the Wnt signaling pathway. Pharmacologic research revealed that WOG, BER, GLY performed inhibited effect on SW480 cells and PUE only exhibited effective antitumor activity when combined with GLY. RNA-seq were used to discover synergistic mechanism of PUE-GLY and CTNNB1, CCND1, SMAD4 were identified as synergistic targets inhibited by PUE-GLY. Moreover, mechanism study explored PUE-GLY could affect the Wnt signaling pathway by up-regulated GSK3B and down-regulated CTNNB1 synergistically. Importantly, it showed that GLY could effectively increase the intracellular content of PUE based on HPLC/MS analysis, and this process was achieved by GLY through influencing the targets of membrane’s pathway, such as cell adhesion molecules, focal adhesion and tight junction. Our study revealed multi-target mechanism of GLY, down-regulated CTNNB1 as the material for efficacy and intervene membrane protein (CDH1, CADM1, ITGB2, ICAM1) as courier in the formulae. Moreover, the mechanism of synergistic antitumor action of Puerariae Lobatae Radix (Gegen-Monarch) and Glycyrrhiza Radix et Rhizoma (Gancao-Assistant) on Wnt signaling pathway was explored systematically.
Project description:We performed gene expression analysis human peritoneal endometriosis lesions, eutopic endometrium from endometriosis patients and peritoneum form endometriosis patients.The goal of the study was to analyse gene expression differences between peritoneal endometriosis lesion and eutopic endometrium and peritoneal endometriosis lesion and peritoneum.
Project description:IntroductionEndometriosis (EMs) is characterized by ectopic growth of active endometrial tissue outside the uterus. The Luoshi Neiyi prescription (LSNYP) has been extensively used for treating EMs in China. However, data on the active chemical components of LSNYP are insufficient, and its pharmacological mechanism in EMs treatment remains unclear. This study aimed to explore the potential mechanism of LSNYP for EMs through network pharmacology based on the components absorbed into the blood.MethodsUltra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry was used to analyze blood components, and a series of network pharmacology strategies were utilized to predict targets of these components and EMs. Protein-protein interaction (PPI) network analysis, component-target-disease network construction, gene ontology (GO) functional enrichment analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed. Additionally, molecular docking, molecular dynamics simulations, and in vitro and in vivo experiments were conducted to validate the HIF1A/EZH2/ANTXR2 pathway associated with hypoxic pathology in EMs.ResultsThirty-four absorbed components suitable for network pharmacology analysis were identified, and core targets, such as interleukin 6, EGFR, HIF1A, and EZH2, were founded. Enrichment results indicated that treatment of EMs with LSNYP may involve the regulation of hypoxia and inflammatory-related signaling pathways and response to oxidative stress and transcription factor activity. Experimental results demonstrated that LSNYP could decrease the expression of HIF1A, ANTXR2, YAP1, CD44, and β-catenin, and increased EZH2 expression in ectopic endometrial stromal cells and endometriotic tissues. Molecular docking and molecular dynamics simulations manifested that there was stable combinatorial activity between core components and key targets of the HIF1A/EZH2/ANTXR2 pathway.ConclusionLSNYP may exert pharmacological effects on EMs via the HIF1A/EZH2/ANTXR2 pathway; hence, it is a natural herb-related therapy for EMs.
Project description:To investigate the mode of action of ccc_R08, a first-in-class orally available HBV cccDNA inhibitor, we designed and implemented two orthogonal and complementary approaches: a forward pharmacology approach and a reverse pharmacology approach. Bioinformatics analysis integrating biological knowledge with the observations from both approaches offered us preliminary insights into the mode of action of ccc_R08.
Project description:ObjectiveTo investigate the molecular mechanism of quercetin in the treatment of heart failure (HF) based on network pharmacology and molecular docking.MethodsQuercetin and HF-related targets were obtained using TCMSP, PharmMapper, CTD and GeneCards databases, and quercetin-HF intersection targets were obtained through the online website Venn; the protein interaction network was constructed and imported into Cytoscape 3.7.2 to identify the core targets of quercetin in the treatment of HF.GO and KEGG pathway enrichment analyses were performed using R package, and molecular docking was performed using Auto Dock Vina.The protein levels of AKT1, phospho-AKT(Ser473), eNOS, MMP9, and caspase-3 in quercetin-treated HF cell models were detected using protein immunoblotting.ResultsWe identified 80 quercetin-HF intersectional targets (AKT1, CASP3, MAPK1, MMP9, and MAPK8) and 5 core targets of quercetin for treatment of HF.GO analysis suggested that the therapeutic effect of quercetin for HF was mediated mainly by such biological processes as responses to peptide hormones, phosphatidylinositol-mediated signalling, responses to lipopolysaccharides, responses to molecules of bacterial origin and regulation of inflammatory responses.KEGG pathway enrichment analysis identified lipid and atherosclerosis pathway, proteoglycans in cancer, PI3K-AKT signaling pathway, diabetic cardiomyopathy and MAPK signaling pathway as the most significantly enriched signaling pathways.Molecular docking showed a good binding activity of quercetin to the 5 core targets.The results of protein immunoblotting showed that 100 μmol/L quercetin significantly reduced AKT1, phospho-AKT (Ser473), eNOS, MMP9 and caspase-3 levels in the cell models of HF (P < 0.01).ConclusionQuercetin improves the pathological changes in HF possibly by regulating the AKT1-eNOS-MMP9 pathway to inhibit cell apoptosis.
Project description:We report the use of transcriptome sequencing in the intervention of luteolin or quercetin in adipogenesis. We constructed the adipogenic differentiation model of mouse embryonic fibroblasts and obtained the differential genes of luteolin or quercetin regulating adipocyte differentiation by transcriptomic sequencing. We identified 2085 differentially expressed lipogenesis response genes, 181 luteolin response genes and 574 quercetin response genes. This study provides a framework for the network regulation mechanism of luteolin or quercetin inhibiting preadipocyte differentiation.
Project description:Alterations in endometrial DNA methylation profile have been proposed as one potential mechanism initiating the development of endometriosis. However, the normal endometrial methylome is influenced by the cyclic hormonal changes and the menstrual cycle phase-dependent epigenetic signature should be considered when studying endometrial disorders. So far, no studies have been performed to evaluate the menstrual cycle influences and endometriosis-specific endometrial methylation pattern at the same time. Therefore, we used Infinium HumanMethylation 450K BeadChip arrays to explore DNA methylation profiles of endometrial tissues from various menstrual cycle phases. Infinium HumanMethylation 450K BeadChip arrays were used to explore DNA methylation profiles of endometrial tissues from mid secretory cycle phase from 17 patients without endometriosis
Project description:Alterations in endometrial DNA methylation profile have been proposed as one potential mechanism initiating the development of endometriosis. However, the normal endometrial methylome is influenced by the cyclic hormonal changes and the menstrual cycle phase-dependent epigenetic signature should be considered when studying endometrial disorders. So far, no studies have been performed to evaluate the menstrual cycle influences and endometriosis-specific endometrial methylation pattern at the same time. Therefore, we used Infinium HumanMethylation 450K BeadChip arrays to explore DNA methylation profiles of endometrial tissues from various menstrual cycle phases. Infinium HumanMethylation 450K BeadChip arrays were used to explore DNA methylation profiles of endometrial tissues from various menstrual cycle phases from 24 patients with endometriosis