scholarly journals Methoprene-Induced Genes in Workers of Formosan Subterranean Termites (Coptotermes formosanus Shiraki)

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 71 ◽  
Author(s):  
He Du ◽  
Reina L. Tong ◽  
Xueyi Huang ◽  
Bingrong Liu ◽  
Runmei Huang ◽  
...  

Termites have a distinct polyphenism controlled by concise hormonal and molecular mechanisms. Workers undergo double molts to transform into soldiers (worker–presoldier–soldier). Juvenile hormone analogs, such as methoprene, can induce workers to transform into presoldiers. However, the molecular mechanism underlying the worker-to-presoldier transformation in Coptotermes formosanus Shiraki is still not clear. We sequenced the transcriptome of workers four days after they had fed on methoprene-treated filter paper and control group workers, which fed on acetone-treated filter paper. The transcriptome of C. formosanus was assembled using the de novo assembly method. Expression levels of unigenes in the methoprene-treated group and the control group were compared. The differentially expressed genes were further analyzed by Gene Ontology (GO) term enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. Tetrapyrrole binding, oxidoreductase activity, and metal ion binding were the only three enriched GO terms. Juvenile hormone synthesis was the first ranked enriched pathway. Carbohydrate, amino acid, and lipid metabolism pathways were also enriched. These three pathways may be related to fat body development, which is critical for presoldier formation. Our results have demonstrated the significance of JH synthesis pathways, and pathways related to fat body development in the artificial induction of presoldiers.

2020 ◽  
Author(s):  
Lun Wu ◽  
Ying Wei ◽  
Wen-Bo Zhou ◽  
Jiao Zhou ◽  
Li-Hua Yang ◽  
...  

Abstract Background Borax, a boron compound, which is becoming widely recognized for its biological effects, including antioxidant activity, cytotoxicity, and potential therapeutic benefits. However, the specific molecular mechanisms underlying borax-induced anti-tumor effect still remain to be to further elucidated. MicroRNAs (miRNAs) may play key roles in cellular processes including tumor progression, cell apoptosis and cytotoxicity. Thus, this study aimed to investigate, whether miRNAs were involved in the borax-mediated anti-tumor effect using miRNA profiling of a human liver cancer cell line (HepG2) using gene-chip analysis.Methods Total RNA was extracted and purified from HepG2 cells that were treated with 4 mM borax for either 2 or 24 h. The samples underwent microarray analysis using an Agilent Human miRNA Array. Differentially expressed miRNAs were analysed by volcano plot and heatmap, and were validated using real-time fluorescent quantitative PCR (qPCR).ResultsAmong this, 2- or 24-h exposure to borax significantly altered the expression level of miRNAs in HepG2 cells, 4 or 14 were upregulated and 3 were downregulated compared with the control group, respectively (≥2-fold; P<0.05). GO enrichment analysis and KEGG pathway enrichment analysis revealed that target genes of differentially expressed miRNAs in HepG2 cells predominantly participated in MAPK signaling pathway, TGF-beta signaling pathway, NF-kappa B signaling pathway, etc; in 2-h borax treatment group, while Ras signaling pathway, FoxO signaling pathway, Cellular senescence, etc; involved in 24-h treatment group.Conclusions Result indicates that borax-induced anti-tumor effect may be associated with alterations in miRNAs.


2021 ◽  
Author(s):  
Fei Xie ◽  
Xue Jiang ◽  
Yang Yi ◽  
Zi-Jia Liu ◽  
Chen Ma ◽  
...  

Abstract The potential for preventive and therapeutic applications of H2 have now been confirmed in various disease. However, the effects of H2 on health status have not been fully elucidated. Our previous study reported changes in the body weight and 13 serum biochemical parameters during the six-month hydrogen intervention. To obtain a more comprehensive understanding of the effects of long-term hydrogen consumption, the plasma metabolome and gut microbiota were investigated in this study. Compared with the control group, 14 and 10 differential metabolites (DMs) were identified in hydrogen-rich water (HRW) and hydrogen inhalation (HI) group, respectively. Pathway enrichment analysis showed that HRW intake mainly affected starch and sucrose metabolism, and DMs in HI group were mainly enriched in arginine biosynthesis. 16S rRNA gene sequencing showed that HRW intake induced significant changes in the structure of gut microbiota, while no marked bacterial community differences was observed in HI group. HRW intake mainly induced significant increase in the abundance of Lactobacillus, Ruminococcus, Clostridium XI, and decrease in Bacteroides. HI mainly induced decreased abundances of Blautia and Paraprevotella. The results of this study provide basic data for further research on hydrogen medicine. Determination of the effects of hydrogen intervention on microbiota profiles could also shed light on identification of mechanism underlying the biological effects of molecular hydrogen.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yanhua Lv ◽  
Yanqing Liu ◽  
Yueqiang Wang ◽  
Fanrong Kong ◽  
Qiuxiang Pang ◽  
...  

Abstract Background This study aimed to explore the molecular mechanisms of tibolone treatment in postmenopausal women. Methods The gene set enrichment profile, GSE12446, which includes 9 human endometrial samples from postmenopausal women treated with tibolone (tibolone group) and 9 control samples (control group), was downloaded from GEO database for analysis. Differentially expressed genes (DEGs) in tibolone vs. control groups were identified and then used for function and pathway enrichment analysis. Protein–protein interaction (PPI) network and module analyses were also performed. Finally, drug–target interaction was predicted for genes in modules, and then were validated in Pubmed. Results A total of 238 up-regulated DEGs and 72 down-regulated DEGs were identified. These DEGs were mainly enriched in various biological processed and pathways, such as cilium movement (e.g., CCDC114 and DNAI2), calcium ion homeostasis, regulation of hormone levels and complement/coagulation cascades. PPI network contained 368 interactions and 166 genes, of which IGF1, DNALI1, CCDC114, TOP2A, DNAH5 and DNAI2 were the hue genes. A total of 96 drug–gene interactions were obtained, including 94 drugs and eight genes. TOP2A and HTR2B were found to be targets of 28 drugs and 38 drugs, respectively. Among the 94 obtained drugs, only 12 drugs were reported in studies, of which 7 drugs (e.g., epirubicin) were found to target TOP2A. Conclusions CCDC114 and DNAI2 might play important roles in tibolone-treated postmenopausal women via cilium movement function. TOP2A might be a crucial target of tibolone in endometrium of postmenopausal women.


PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245749
Author(s):  
Zhuang Hao ◽  
Zhen Li ◽  
Jinjin Huo ◽  
Jiandong Li ◽  
Fenghua Liu ◽  
...  

The objective of this study is to determine the effect of Chinese wolfberry (Lycium barbarum) and Astragalus (Astragalus membranaceus) extract (WAE) on the antioxidant capacity of Tibetan pig liver, and discussed the regulatory effect of WAE on the liver antioxidant mechanism. Twelve healthy 120-day-old Tibetan black pigs (35±2 kg) were divided randomly into two groups. The WAE group was fed a basal diet supplemented with 1% WAE for 90 days. The control group was fed the same diet, but without the WAE. We found that liver superoxide dismutase 1 (SOD1) activity (P<0.05), total antioxidative capacity (T-AOC) (P<0.05), and catalase (CAT) activity (P<0.01) significantly increased in the WAE group compared with the control group; malondialdehyde (MDA) content decreased, but this was not significant (P >0.05). Transcriptome sequencing analysis detected 106 differentially expressed genes (DEGs) related to oxidative stress. GO enrichment analysis showed these DEGs were involved in the positive regulation of reactive oxygen metabolism and biosynthesis, process regulation, and regulation of the oxidative stress response. KEGG Pathway enrichment analysis showed they were enriched in the PI3K-Akt, AMPK, Rap1, and peroxisome signaling pathways. The expression levels of key peroxisome biosynthesis genes (e.g., PEX3 and PEX11B) and key antioxidant genes (e.g., CAT and SOD1) were significantly higher in the WAE group than in the control group. The PRDX1 and PRDX5 content also was significantly higher in the WAE group. This study showed that the WAE regulated the antioxidant and anti-stress ability of Tibetan pig liver through a “peroxisome antioxidant-oxidant stress” signaling pathway.


2021 ◽  
Author(s):  
Ziqian Xiao ◽  
Zhenyang Zhang ◽  
Shanbin Huang ◽  
Jerome Rumdon Lon ◽  
Shuilin Xie

AbstractOsteoarthritis is a prevalent aging disease in the world, and in recent years it has shown a trend toward younger age, which is becoming a major health problem in the world and seriously endangers the health of the elderly. However, the etiology and pathogenesis of osteoarthritis are still unclear, causing great trouble for treatment. To screen out potential biomarkers that could be used as identification of osteoarthritis and explore the pathogenesis of osteoarthritis, we performed untargeted metabolomics analysis of nine New Zealand rabbit serum samples by LC-MS / MS, including three normal serum samples (control group) and six osteoarthritis serum samples (case group). Finally 44 differential metabolites were identified, and the ROC analysis results indicated that a total of 36 differential metabolites could be used as potential biomarkers. Further metabolic pathway enrichment analysis was performed on these differential metabolites, and we found that a total of 17 metabolic pathways were affected, which may provide directions for the study of osteoarthritis mechanisms.


2021 ◽  
Vol 12 ◽  
Author(s):  
Jing Xu ◽  
Guannan Su ◽  
Xinyue Huang ◽  
Rui Chang ◽  
Zhijun Chen ◽  
...  

To investigate aqueous metabolic profiles in Vogt-Koyanagi-Harada (VKH) and Behcet’s disease (BD), we applied ultra-high-performance liquid chromatography equipped with quadrupole time-of flight mass spectrometry in aqueous humor samples collected from these patients and controls. Metabolite levels in these three groups were analyzed by univariate logistic regression. The differential metabolites were subjected to subsequent pathway analysis by MetaboAnalyst. The results showed that both partial-least squares discrimination analysis and hierarchical clustering analysis showed specific aqueous metabolite profiles when comparing VKH, BD, and controls. There were 28 differential metabolites in VKH compared to controls and 29 differential metabolites in BD compared to controls. Amino acids and fatty acids were the two most abundant categories of differential metabolites. Furthermore, pathway enrichment analysis identified several perturbed pathways, including pantothenate and CoA biosynthesis when comparing VKH with the control group, and D-arginine and D-ornithine metabolism and phenylalanine metabolism when comparing BD with the control group. Aminoacyl-tRNA biosynthesis was altered in both VKH and BD when compared to controls. Our findings suggest that amino acids metabolism as well as two fatty acids, palmitic acid and oleic acid, may be involved in the pathogenesis of BD and VKH.


2021 ◽  
Author(s):  
Yixin Ma ◽  
Shunyu Ning ◽  
Nan Song ◽  
Si Chen ◽  
Xue Leng ◽  
...  

Abstract Background: Ginsenoside Rb1, known as Renshen in traditional Chinese medicine, is one of the major bioactive saponins isolated from Panax ginseng C.A.Mey. N-glycosylation is the most common type of post-translational modification in cells. The widespread localization of N-glycosylated proteins (N-glycoproteins) between extracellular spaces and on the cell surfaces give them unique advantages as disease biomarkers and drug targets. Previous study found that Ginsenoside Rb1 could potentially play a preventive role in hyperlipidemia. This study aims to reveal the hypolipidemic effect at the protein modification level. Methods: 24 male SD rats were randomly devided into 3 groups: control group (CON), high fat diet group (HFD) and Ginsenoside Rb1 group (Rb1). Both HFD and Rb1 groups were fed with high-fat diet for 12 weeks. The Rb1 group started intragastric administering Ginsenoside Rb1 200 mg·kg -1 ·d -1 at 5th week for 8 weeks, while the CON and HFD group the same amount of normal saline for the same amount of time. Lipid levels and liver histology were assayed to evaluate the effects of Ginsenoside Rb1 intake on hyperlipidemia rats. Furthermore, the workflow by combination of isotope TMT labeling, HILIC enrichment, and high-resolution LC-MS/MS analysis were employed to exploring the mechanisms of regulation role in hyperlipidemia rats.Results: The histopathologic characteristics and biochemical data shows that Ginsenoside Rb1 exhibited regulative effects on hyperlipidemia rats. After being analyzed by N-glycoproteomic, 98 differential N-glycosylation sites on 53 glycoproteins between 2 comparison groups (HFD: CON, Rb1: HFD) were identified. Analyses of N-glycosylation sites distribution found that albumin (Alb) and Serpinc1 were most heavily modified with 6 N-glycosylation sites changed in this work. GO enrichment analysis showed that differential modified glycoproteins were involved in inflammatory response, cellular iron ion homeostasis and positive regulation of cholesterol efflux etc. biosynthetic process. Complement and coagulation cascades was the most significant enriched in the KEGG pathway enrichment analysis. Conclusions: This study presents a comprehensive analysis of a new set of N-glycoproteins which are altered by Ginsenoside Rb1 and offers some valuable clues for novel mechanistic insights into the ragulative mechanism of Ginsenoside Rb1. Results from N-glycoproteomic suggest that to suppress hyperlipidemia, Rb1 may regulates N-glycosylation of Alb, Serpinc1, PON1, Lrp1, Cp and THBS1, as well as differentially modified glycoproteins in complement and coagulation cascades, which in turn improve the imbalance of lipid homeostasis.


2020 ◽  
Author(s):  
Xue Fan ◽  
Xin Guo ◽  
Ying Li ◽  
Mingguo Xu

Abstract Background: Kawasaki disease (KD) is an acute self-limiting systemic vasculitis. In study, a randomized controlled trial regarding berberine (main component of Coptidis Rhizoma) function in treating KD was carried out and possible pharmacological mechanisms of Coptidis Rhizoma (CR) on KD therapy were investigated using an integrated network pharmacology approach. Methods: A total of 58 children with KD, younger than 5 years old, were enrolled in the study from October 2018 to May 2019. The patients were randomly divided into control group and BBR treatment group. The therapeutic indicators of the 2 groups before and after treatments were compared. Then, compounds and drug targets of CR from the Traditional Chinese Medicine Systems Pharmacology (TCMSP) database, the SWISS database, the SEA database and the STITCH database were collected, and targeted KD genes were retrieved from the DisGeNET databases, the DrugBank databases and the GeneCards databases. The network pharmacology approach involved network construction, target prediction, and module analysis. KEGG pathway and GO enrichment analysis were performed to investigate the molecular mechanisms and pathways related to CR for KD treatments. Results: The berberine group was able to reduce the values of CRP, NLR and PLR significantly. Also, the effect of berberine improved the resistance rate of intravenous injection of gamma globulin significantly. In total, 9 compounds and 369 relative drug targets were collected from TCMSP, SWISS, SEA and STITCH database and 624 KD target genes were collected in DisGeNET, DrugBank and GeneCards database. The network analysis revealed that 41 targets might be the therapeutic targets of CR on KD, among which ATK1, RELA, SRC, CASP3 and MTOR ranked in top 5. Gene ontology enrichment analysis revealed that the reaction to bacteria-derived molecules and to lipopolysaccharide and the apoptosis process were the key biological procedures for CR treating KD. The KEGG pathway enrichment analysis pointed out that the four signaling pathways closely related to CR treating KD including age-rage signaling pathway, fluid shear stress and atherosclerosis, TNF signaling pathway and Toll-like receptor signaling pathway in diabetic complications. Conclusions: we concluded that the introduction of routine treatment combined with berberine in treating KD has advantages than routine treatment and can be considered as a preferred approach in KD. Network pharmacology showed that CR exerted the effect of prevention KD by regulating multi-targets and multi-components.


2020 ◽  
Author(s):  
Ling Wang ◽  
Melissa May Millerick ◽  
Kenneth D. Rosenman ◽  
Yuehua Cui ◽  
Bruce Uhal ◽  
...  

AbstractBackgroundHypersensitivity Pneumonitis (HP) is an interstitial lung disease caused by an immune response to the inhalation of antigens. Since only a small proportion of individuals exposed to HP-related antigens develop the disease, a genetic variation may play a role in disease development.MethodsIn this small-scale study, 24 patients diagnosed with HP were matched with control group who shared the patient’s environment and were exposed to the same HP-associated antigens. Logistic regression was employed to identify Single-Nucleotide Polymorphisms (SNPs) associated with HP. Next genes associated with HP were identified using sequence kernel association test (SKAT) analysis. Last, Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Oncology (GO) enrichment analysis were employed to find HP signaling pathways using SNPs coded on genes and on non-coding genes, respectively.ResultsGiven the small sample size, no single SNPs or genes were identified to be significantly associated with HP after adjustment for multiple testing. After P-value adjustment, the KEGG and GO pathway enrichment analysis identified 11 and 20 significant pathways respectively using SNPs coded on genes. Among these pathways, Cell cycle, Proteasome and Base excision repair had previously reported to be associated with lung function.ConclusionThis is the first GWAS study identifying genetic factors associated with HP. Although no significant associations at SNPs/gene level were identified, there were significant pathways that are identified associated with HP which need further investigation in large cohorts.


2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Xu Liang ◽  
Changyong Luo ◽  
Yan Li ◽  
Xin Li ◽  
Qian Wang ◽  
...  

Background. Yiqi Huayu Jiedu (YQHYJD) is a traditional Chinese medicine decoction made up of eight traditional Chinese medicines. Although YQHYJD is effectively used to prevent and treat ARDS/acute lung injury (ALI) in rats, the molecular mechanisms supporting its clinical application remain elusive. The purpose of the current study was to understand its lung protective effects at the molecular level using network pharmacology approach. Methods. In an ARDS animal model, the beneficial pharmacological activities of YQHYJD were confirmed by reduced lung tissue damage levels observed on drug treated rats versus control group. We then proposed a network analysis to discover the key nodes based on drugs and disease network. Subsequently, we analyzed interaction networks and screened key targets. Using Western blot to detect the expression level of key targets, the intervention effect of changes in expression level of key targets on ARDS was evaluated. Results. Pathway enrichment analysis of highly ranked genes showed that ErbB pathways were highly related to ARDS. Finally, western blot results showed decreased level of the AKT1 and KRAS/NRAS/HRAS protein in the lung after treatment which confirmed the hypothesis. Conclusion. In conclusion, our results suggest that YQHYJD can exert lung tissue protective effect against the severe injury through multiple pathways, including the endothelial cells permeability improvement, inflammatory reaction inhibition, edema, and lung tissue hemorrhage reduction.


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