Hwp1 gene Expression of Candida albicans and Study its role in adherence

International Journal of Molecular and Clinical Microbiology

مقاله 9، دوره 3، شماره 2، آبان 2013، صفحه 320-324   

نوع مقاله: Research Article

نویسندگان

Maryam hosseini por¹؛ Shahla Roudbarmohammadi^{* 1}؛ Maryam roudbary²؛ Bita Bakhshi³؛ Zahra Farhadi⁴

¹Department of Medical Mycology, Faculty of Medical Science ,Tarbiat Modares University ,Tehran, Iran

²Department of Medical Parasitology and Mycology, School of Medicine, Iran university of Medical Science, Tehran, Iran

³Department of Bacteriology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran

⁴Department of Midwifery and gynecology, Faculty of Medical Science, Shahid Beheshti University, Tehran, Iran

چکیده

Candida albicans is an opportunistic fungal pathogen found as mycoflora in the human body surfaces. Sevral genes play a crucial rule in its virulence including Hwp1 (hyphal wall protein 1), BCR1 and ALS gene family. Hwp1 gene is a responsible for coding a cell surface protein, which mediates biofilm formation in candida albicans. Here we investigated the presence of the HWP1gene was characterised among Candida albicans isolates in women with recurrent vaginal canididasis and further we studies its role in cell adherence. We used 50 Candida albicans clinical isolates resistant to Fluconazole. RNA (of samples were extracted using glass bead and lysis buffer and cDNA was synthesized using reverse transcriptase enzyme. Expression of (HWP1) gene was analysed using reverse transcriptase-plolymerase chain reaction (RT-PCR). The ability of adherence of the isolates with or without the expression of HWP1 were characterized using Hela cells. Statistical analysis were performed using t-test and two-way ANOVA SPSS software. Our results showed that the HWP1 gene were present in 47 samples (94%) out of 50 isolates, 27 samples (57%) had expression of HWP1. The result of adherence assay revealed that the isolates with the expression of HWP1 gene and control isolates was statistically different (p<0.05). In conclusion, the isolates with the expression of HWP1 gene has the higher ability to adhere the epithelial mucosal cell surface. Our data support a positive correlation between the expression of HWP1 gene and the ability of adherence to epithelial cells.

کلیدواژه‌ها

Candida albicans؛ vaginal candidiasis؛ Hwp1؛ adherence