inhibitory effects of carvacrol on the expression of secreted aspartyl proteinases 1-3 in fluconazole-resistant candida albicans isolates

نویسندگان

seyedeh sedigheh hosseini department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, iran.

mohamad hossein yadegari associate professor, department of medical mycology, faculty of medical sciences, tarbiat modares university, tehran, iran

masoumeh rajabibazl associate professor, department of clinical biochemistry, faculty of medicine , shahid beheshti university of medical sciences ,tehran, iran, school of advanced technologies in medicine, shahid beheshti university of medical sciences, tehran, iran

ezzat allah ghaemi professor, department of microbiology, faculty of medicine, golestan university of medical sciences, gorgan, iran.

چکیده

background and objectives: secreted aspartyl proteinase (sap) is one of the main virulence factors in the pathogenesis of candida. this enzyme is encoded by a family of at least ten genes. among these genes, the role of sap1-3 in mucosal infections is evident. this study aimed to investigate the expression of sap1-3 genes of candida albicans isolates after treatmentwith echinophora platyloba extract, carvacrol and caspofungin drug. materials and methods: vaginal samples of 68 women with suspected vaginitis were obtained and cultured. canida albicans species were identified using phenotypic and genotyping methods. spectrophotometry was used to investigate thepresence of sap protein in the vaginal samples, and sds-page was used to confirm its protein composition. real-timepcr was performed to ascertain the effects of subinhibitory concentrations of echinophora platyloba extract, carvacrol andcaspofungin on the expression of sap1-3 genes before and after treatment. results: c. albicans was found as the abundant species (59.6%), and different amounts of sap were present in all vaginalsamples, which were higher than candida krusei strain. the protein composition of sap in c. albicans samples was estimatedwith the approximate molecular weight of 45 kda. mrna levels of total sap in flu-resistant isolates (p=0.01) were morethan those of flu-susceptible isolates (p=0.07). the findings indicated that carvacrol is effective in reduction of sap1-3 expression with a particular effect against flu-resistant isolates. conclusion: carvacrol contains an essential oil (carvacrol); therefore, it can be considered as an alternative effective antifungal compound. keywords: carvacrol, sap1-3, candida albicans , fluconazole-resistant, echinophora platyloba

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Inhibitory effects of carvacrol on the expression of secreted aspartyl proteinases 1–3 in fluconazole-resistant Candida albicans isolates

BACKGROUND AND OBJECTIVES Secreted Aspartyl Proteinase (SAP) is one of the main virulence factors in the pathogenesis of Candida. This enzyme is encoded by a family of at least ten genes. Among these genes, the role of SAP1-3 in mucosal infections is evident. This study aimed to investigate the expression of SAP1-3 genes of Candida albicans isolates after treatment with Echinophora platyloba ex...

متن کامل

Three distinct secreted aspartyl proteinases in Candida albicans.

The secreted aspartyl proteinases of Candida albicans (products of the SAP genes) are thought to contribute to virulence through their effects on Candida adherence, invasion, and pathogenicity. From a single strain of C. albicans (WO-1) which expresses a phenotypic switching system, three secreted aspartyl proteinases have been identified as determined by molecular weight and N-terminal sequenc...

متن کامل

Candida albicans secreted aspartyl proteinases in virulence and pathogenesis.

Candida albicans is the most common fungal pathogen of humans and has developed an extensive repertoire of putative virulence mechanisms that allows successful colonization and infection of the host under suitable predisposing conditions. Extracellular proteolytic activity plays a central role in Candida pathogenicity and is produced by a family of 10 secreted aspartyl proteinases (Sap proteins...

متن کامل

Inhibitory Effect of Fluconazole Combined with Amphotericin B on Fluconazole-Resistant Candida albicans Biofilm Formation

 Background & Objective:  The incidence of biofilm-related infections caused by Candida albicans has increased dramatically. C. albicans biofilm-related infections are more resistant to antifungal medications. This work was an attempt to examine inhibitory effects of fluconazole in combination with amphotericin B on fluconazole-resistant C. albicans biofilm.  Materials & Methods:  Fluconazole-...

متن کامل

Using PCR to Compare the Expression of CDR1, CDR2, and MDR1 in Candida Albicans Isolates Resistant and Susceptible to Fluconazole

Abstract       Background and objectives: More Candida albicans strains are reported resistant to fluconazole in patients with AIDS, cancer and organ recipients. Fluconazole resistance can be attributed to changes in pathways of sterol biosynthesis, mutation in or overexpression of ERG11 and the expression of CDR1, CDR2, and MDR1. This study aimed to compare the ex...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
iranian journal of microbiology

جلد ۸، شماره ۶، صفحات ۴۰۱-۴۰۹

کلمات کلیدی
[ ' c a r v a c r o l ' , ' s a p 1 ' , 3 , ' c a n d i d a a l b i c a n s ' , ' f l u c o n a z o l e ' , ' r e s i s t a n t ' , ' e c h i n o p h o r a p l a t y l o b a ' ]

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023