Project description:The global emergence of soil salinization poses a serious challenge to many countries and regions. γ-Aminobutyric acid (GABA) is involved in systemic regulation of plant adaptation to salt stress, but the underling molecular and metabolic mechanism still remains largely unknown. The elevated endogenous GABA level by exogenous application of GABA could significantly improve salt tolerance in creeping bentgrass with the enhancement of antioxidant capacity, photosynthetic characteristics, osmotic adjustment (OA), and water use efficiency. GABA strongly upregulated transcript levels of AsPPa2, AsATPaB2, AsNHX2/4/6, and AsSOS1/20 in roots involved in enhanced capacity of Na+ compartmentalization and mitigation of Na+ toxicity in cytosol. Significant downregulation of AsHKT1/4 expression could be induced by GABA in leaves in relation to maintenance of significantly lower Na+ accumulation and higher K+/Na+ ratio. GABA-depressed aquaporins (AQPs) expression and accumulation induced declines in stomatal conductance and transpiration, thereby reducing water loss in leaves during salt stress. For metabolic regulation, GABA primarily enhanced sugars and amino acids accumulation and metabolism largely contributing to improved salt tolerance through maintaining OA and metabolic homeostasis. Other major pathways could be responsible for GABA-induced salt tolerance including increases in antioxidant defense, heat shock proteins, dehydrins, and myo-inositol accumulation in leaves. Integrative analyses of molecular, protein, metabolic, and physiological changes reveal systemic function of GABA on regulating ions, water, and metabolic homeostasis in non-halophytic creeping bentgrass under salt stress.
Project description:Microarray analysis was performed to evaluate the global gene expression profiles of MCF-7 breast cancer cells treated with tomato leaves extract (TLE) in 1 hr and 48 hrs of treatment. Several of genes with p < 0.05 and fold-change cut-off <2.00 from human genome had significantly changed after the treatments. Its showed the greatest roles in cancer cells growth and were found either to be down-regulated or up-regulated in cells after the treatment.TLE gave significant expression effects towards several genes such as CRYAB, PIM1, BTG1, CYR61, HIF1A, CEBP-beta, TXNIP, THBS1, HMG1L1 and HIST2H3D genes. These results demonstrate the potent activity of TLE as an anti-cancer agent.
Project description:Blackcurrants (Ribes nigrum L., Grossulariaceae) have a high content of anthocyanin polyphenols and these have been shown to have beneficial effects on health, owing to their antioxidant and anti-carcinogenic properties. This study analyzed the constituents of blackcurrant extract (BCE) and investigated its potential phytoestrogenic effects using a breast cancer cell line (MCF-7) overexpressing the estrogen receptor (ER) α. Microarray and ingenuity pathway analysis showed that BCE activated upstream genes such as ERα and transforming growth factor beta 1, and upregulated the expression of many genes downstream of ERα.
Project description:We conducted RNA-seq from the Ginkgo leaves after UV-B treatment,and constructed the molecular regulatory network of flavonoids synthesis under UV-B radiation in G. biloba.
Project description:Blackcurrants (Ribes nigrum L., Grossulariaceae) have a high content of anthocyanin polyphenols and these have been shown to have beneficial effects on health, owing to their antioxidant and anti-carcinogenic properties. This study analyzed the constituents of blackcurrant extract (BCE) and investigated its potential phytoestrogenic effects using a breast cancer cell line (MCF-7) overexpressing the estrogen receptor (ER) α. Microarray and ingenuity pathway analysis showed that BCE activated upstream genes such as ERα and transforming growth factor beta 1, and upregulated the expression of many genes downstream of ERα. MCF-7 cells were seeded in culture dish and maintain to confluent. Then medium replace with phenol-red-serum-free DMEM medium with or without BCE (50μg/ml). After the cells were incubated for 24 h at 37 °C 5% CO2.
Project description:Annona muricata L., include the leaves, is found to contain biologically active Annonaceous acetogenins and plant polyphenols that are important components of human diet and a number of them are considered to have chemopreventive and therapeutic properties against cancer.
To confirm previous findings in in vitro, animal study and traditionally use, a human, ex vivo and in vitro studies were conducted to evaluate the effects of consecutive ingestion of A. muricata leaves extract for eight weeks.
Project description:Microarray analysis was performed to evaluate the global gene expression profiles of MCF-7 breast cancer cells treated with tomato leaves extract (TLE) in 1 hr and 48 hrs of treatment. Several of genes with p < 0.05 and fold-change cut-off <2.00 from human genome had significantly changed after the treatments. Its showed the greatest roles in cancer cells growth and were found either to be down-regulated or up-regulated in cells after the treatment.TLE gave significant expression effects towards several genes such as CRYAB, PIM1, BTG1, CYR61, HIF1A, CEBP-beta, TXNIP, THBS1, HMG1L1 and HIST2H3D genes. These results demonstrate the potent activity of TLE as an anti-cancer agent. We analyzed untreated (0 hr) and treated MCF-7 breast cancer cells (after 1 hr and 48hrs) using the Affymetrix Human Exon 1.0 ST platform. Chip array was scanned by Affymetrix Microarray Suite/GCOS. Experiment were performed in triplicates. Raw data was processed by GeneSpringGX v7.2 (Agilent Technology, USA).