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- 저자 : Svasti, Jisnuson (검색결과 4 건)
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Prognostic Significance of 14-3-3γ Overexpression in Advanced Non-Small Cell Lung Cancer
Raungrut, Pritsana,Wongkotsila, Anusara,Lirdprapamongkol, Kriengsak,Svasti, Jisnuson,Geater, Sarayut Lucien,Phukaoloun, Monlika,Suwiwat, Supaporn,Thongsuksai, Paramee Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.8
The 14-3-3 protein has been shown to be involved in the cancer process. However, there is no understanding of the relationship between 14-3-$3{\gamma}$ (14-3-3 gamma) expression and prognosis in advanced non-small cell lung cancer. In this study, we therefore investigated the association between protein levels by immunohistochemistry and clinicopathological features of advanced NSCLC patients. Survival curves were estimated using the Kaplan-Meier method and tested by log-rank. Multivariate analysis was conducted with the Cox's regression model to determine independence of factors. p values less than 0.05 were considered significant. A total 153 patients were studied, with 54.3% being stage III and 45.8% stage IV. Fifty-one cases (33.3%) were squamous cell carcinomas, and 98 cases (64.1%) were adenocarcinomas. High 14-3-$3{\gamma}$ expression was seen in 59.5% and significantly correlated with lymph node metastasis (p=0.010) and distant metastasis (p=0.017). On Kaplan-Meier analysis, high 14-3-$3{\gamma}$ expression was associated with poorer survival with a marginal trend toward significance (p=0.055). On multivariate analysis, age, treatment, and 14-3-$3{\gamma}$ expression proved to be independent prognostic parameters. In vitro experiments indicated that 14-3-$3{\gamma}$ overexpression also played a potential role in cancer invasion. In conclusion, our data suggest that 14-3-$3{\gamma}$ overexpression is associated with invasion and a poor prognosis. Therefore, 14-3-$3{\gamma}$ may be a potential prognostic marker of advanced non-small cell lung cancer.
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Rakrudee Sarnthima,Saranyu Khammuang,Jisnuson Svasti 한국생물공학회 2009 Biotechnology and Bioprocess Engineering Vol.14 No.4
Six agro-industrial wastes were evaluated as a support for ligninolytic enzyme production by the white-rot fungus Lentinus polychrous Lév. under solid-state fermentation. Enzyme production was markedly different according to the substrate used. Rice bran (RB) yielded the highest laccase activity of 1,449 U/L (after 21 days of culture) with specific activity of 4.4 U/g substrate. Rice bran supplemented with rice husk (RH) (2:1 by wt) showed high laccase activity of 1,425 U/L with specific activity of 10.0 U/g substrate (after 17 days of culture). The crude enzyme of the RH-RB culture also contained manganese peroxidase (MnP) and manganese-independent peroxidase (MIP) activities in relative proportions of 1.9:1.4:1 of laccase:MnP:MIP, respectively. Zymogram studies showed the same isoenzyme pattern with these ligninolytic enzymes. The high enzyme production level and low substrate cost of SSF-L. polychrous Lév. suggest that it has potential for industrial applications. Our studies showed that the crude enzyme from this culture exhibited in vitro decolorization of Indigo Carmine. The highest efficiency of dye decolorization was observed under alkaline conditions (pH 9.0) at an initial dye concentration of 10 mg/L. The rather high pH conditions and high efficiency in Indigo Carmine decolorization make the enzyme further interest for the applications in treatment of waste water from the textile industry, which contains synthetic dyes.
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Piyachat Chuysinuan,Chalinan Pengsuk,Kriengsak Lirdprapamongkol,Supanna Techasakul,Jisnuson Svasti,Patcharakamon Nooeaid 한국섬유공학회 2019 Fibers and polymers Vol.20 No.1
Tissue engineering involves a multifunctional temporary matrix which regulates tissue regeneration through controlled drug release against infections. A nanofibrous core-sheath structured scaffold comprising a tetracycline-loaded alginate/soy protein isolate (TCH-Alg/SPI) as a core and polycaprolactone (PCL) as a sheath was developed using co-axial electrospinning. Coverage of hydrophobic PCL on TCH-Alg/SPI fibers enhanced their structural stability in aqueous solutions as unsheathed fibers rapidly decomposed and provided fast drug release. Core-sheath fibers exhibited an initial burst release at ~49 % after 6 h of immersion in phosphate-buffered saline (PBS) solution and the sustain release reached ~80 % of total loaded drug on day 14. Release characteristics of TCH-Alg/SPI fibers without PCL covering showed immediate drug release within 48 h. Core-sheath fibers investigated by disk diffusion exhibited antibacterial properties against Staphylococcus aureus and Escherichia coli. The non-toxicity of core-sheath fibers was confirmed by an indirect cytotoxicity test using human dermal fibroblasts which showed compatibility and high cell viability of up to 100 % in treated cells. TCH-Alg/SPI-PCL core-sheath fibers show promise as tissue engineering scaffolds which can act as temporary templates for tissue regeneration and exhibit antibiotic release functions against infections caused by pathogenic microorganisms.
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Eryngium foetidum Suppresses Inflammatory Mediators Produced by Macrophages
Mekhora, Chusana,Muangnoi, Channarong,Chingsuwanrote, Pimjai,Dawilai, Suwitcha,Svasti, Saovaros,Chasri, Kaimuk,Tuntipopipat, Siriporn Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.2
Objective: This study assessed anti-inflammatory and antioxidant activities of $E.$ $foetidum$ leaf extract on LPS-activated murine macrophages. Methods: RAW264.7 cells were pretreated with or without $E.$ $foetidum$ extract for 1 h prior to incubation with LPS for 24 h. Anti-inflammatory activity was evaluated with reference to iNOS, COX-2, TNF-${\alpha}$ and IL-6 gene expression. In addition, NO and intracellular ROS generation were determined by Griess method and fluorescence intensity and activation of MAPKs and $I{\kappa}B$ by Western blotting. Results: Prior treatment with $E.$ $foetidum$ leaf extract inhibited elevation of IL-6, TNF-${\alpha}$, iNOS and COX-2, together with their cognate mRNAs in a dose-dependent manner. NO and intracellular ROS contents were similarly reduced. These effects were due to inhibition of LPS-induced phosphorylation of JNK and p38 as well as $I{\kappa}B$. $E.$ $foetidum$ ethanol extract were shown to contain lutein, ${\beta}$-carotene, chlorogenic acid, kaempferol and caffeic acid, compounds known to exert these bioactive properties. Conclusions: $E.$ $foetidum$ leaf extract possesses suppressive effects against pro-inflammatory mediators. Thus, $E.$ $foetidum$ has a high potential to be used as a food supplement to reduce risk of cancer associated with inflammation.
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