Related Experiment Video
Updated: Aug 19, 2025

Detection and Isolation of Viable Mouse IL-17-Secreting T Cells
Published on: December 18, 2008
Detection of IL-17A and IL-17F gene polymorphism in recurrent and disseminated pityriasis versicolor: a case-control
S R El-Tahlawi1, A H Ramadan1, O G Shaker2
1Department of Dermatology, Kasr Al Ainy Teaching Hospital, Faculty of Medicine, Cairo University, Al-Saray Street, Kasr Al Ainy, El Manial, Cairo, 11956, Egypt.
Abstract:
Recurrent and disseminated pityriasis versicolor (RDPV) is a common clinical entity, characterized by its recurrent and disfiguring nature. Studies demonstrated host genetic variations in the immune response, especially the role of IL-17 in antifungal immunity. This study aimed to detect whether IL-17A and F gene polymorphisms are found in cases of RDPV. It included 100 cases of RDPV and 100 age and sex matched controls, from which EDTA blood samples were taken for single-nucleotide polymorphism analysis. IL-17A (rs2275913) and F (rs763780) were associated with a significantly increased incidence of developing RDPV. IL-17A and F gene polymorphism could be implicated as a risk factor for the development of RDPV.
Insights
Genetic variations in Interleukin-17A (IL-17A) and Interleukin-17F (IL-17F) genes are linked to an increased risk of developing recurrent and disseminated pityriasis versicolor (RDPV). This finding highlights a potential genetic predisposition to the fungal skin infection.
Area of Science:
- Medical Mycology
- Human Genetics
- Immunology
Background:
- Recurrent and disseminated pityriasis versicolor (RDPV) presents a significant clinical challenge due to its persistent and disfiguring nature.
- Previous research indicates that host genetic factors, particularly those influencing the immune response, play a role in susceptibility to fungal infections, with a notable focus on Interleukin-17 (IL-17).
Purpose of the Study:
- To investigate the association between specific gene polymorphisms of IL-17A and IL-17F and the occurrence of RDPV.
- To determine if these genetic variations contribute to the risk of developing RDPV.
Main Methods:
- A case-control study involving 100 patients diagnosed with RDPV and 100 age- and sex-matched healthy controls.
- Single-nucleotide polymorphism (SNP) analysis was performed on EDTA blood samples to genotype IL-17A (rs2275913) and IL-17F (rs763780).
Main Results:
- The study found a statistically significant association between IL-17A (rs2275913) and IL-17F (rs763780) gene polymorphisms and an increased incidence of RDPV.
- These specific polymorphisms were identified as risk factors for the development of RDPV.
Conclusions:
- IL-17A and IL-17F gene polymorphisms are implicated as genetic risk factors for recurrent and disseminated pityriasis versicolor.
- Understanding these genetic predispositions may offer insights into the pathogenesis and potential future therapeutic targets for RDPV.
Related Concept Videos
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Epistasis

