首页> 外文期刊>Infection, Genetics and Evolution: Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases >The effect of released new synthetic peptide from nanofibrous scaffold of peptide/Poly (Vinyl Alcohol)/Poly L-Lactic Acid on expression of Secretory aspartyl proteinases 4 to 6 genes of Candida albicans
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The effect of released new synthetic peptide from nanofibrous scaffold of peptide/Poly (Vinyl Alcohol)/Poly L-Lactic Acid on expression of Secretory aspartyl proteinases 4 to 6 genes of Candida albicans

机译:从肽/聚(乙烯醇)/聚(乙烯醇)/聚L-乳酸的纳米纤维支架中释放的新合成肽对念珠菌蛋白酶4至6种基因的表达

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Secreted aspartyl proteinases (Saps), are gene products that have been shown to directly contribute to Candida albicans pathogenicity. Despite the clear difficulties of systemic C. albicans infections control, Antimicrobial peptides (AMPs) are regarded as one of the most promising alternatives in this regard. Recently, drug-loaded electrospun nanofibers have attracted a great deal of attention. In this study we have established the nanofibrous scaffold of new synthetic peptide/Poly (Vinyl Alcohol)/Poly L-Lactic Acid on expression of Secretory aspartyl proteinases 4 to 6 genes of C. albicans in comparison with free peptide. We designed new synthetic Antimicrobial peptide (AMPs) used bioinformatics tools to predict structure and stabilities. The electrospinning method was used to produce the polymeric nanofibers. Scanning Electron Microscopy (SEM) was used to measure the nanofibers diameters and morphology. To analyze the expression of SAP4, SAP5 and SAP6 genes, RNA was extracted from clinical isolates of C. albicans before and after treatment with subinhibitory concentrations of new synthetic peptide on nanofibrous scaffold of new synthetic peptide/PVA/PLLA and then the cDNA was synthesized and used for Real-time PCR assay. Scanning electron microscopy (SEM) images showed that the morphology, the diameter, are affected from peptide. Reletive quantitative Real-time PCR results revealed that the mRNA levels of SAP4, SAP5 and SAP6 genes significantly decreased after treatment with nanofibrous scaffold of new synthetic peptide/PVA/PLLA (P .05). Electrospun nanofibrous of new Synthetic Peptide/PVA/PLLA is effective in downregulating of expression SAP4, SAP5 and SAP6 genes of C. albicans strains.
机译:分泌的阿斯巴氨酰蛋白酶(SAPs)是已被证明直接促进念珠菌致病性的基因产物。尽管Systemic C. albicans感染控制的困难,但抗微生物肽(AMPS)被认为是这方面最有前途的替代品之一。最近,载有力的电纺纳面纤维引起了大量的关注。在这项研究中,我们已经建立了新的合成肽/聚(乙烯醇)/聚L-乳酸的纳米纤维支架上,与游离肽相比,在蛋白质的分泌物阿巴氨酸蛋白酶4至6个基因的表达上。我们设计了新的合成抗微生物肽(AMPS)使用的生物信息学工具来预测结构和稳定性。静电纺丝方法用于生产聚合物纳米纤维。扫描电子显微镜(SEM)用于测量纳米纤维直径和形态学。为了分析SAP4,SAP5和SAP6基因的表达,在新合成肽/ PVA / PLLA的纳米纤维支架上的纳米纤维支架上治疗之前和之后,从C.醛型人的临床分离株中提取RNA。合成cDNA并用于实时PCR测定。扫描电子显微镜(SEM)图像显示形态,直径,从肽的影响。重节束定量实时PCR结果显示,在用新的合成肽/ PVA / PLLA的纳米纤维支架处理后,SAP4,SAP5和SAP6基因的mRNA水平显着降低(P <.05)。 Electrome纳米型新的合成肽/ PVA / PLLA在下降的表达SAP4,SAP5和SAP6基因的下调中是有效的。

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