Molecular identification and phylogenetic classification of Leishmania spp. isolated from human cutaneous leishmaniasis in Iran: A cross-sectional study

Mohammadiha, A. and Dalimi, A. and Mohebali, M. and Sharifi, I. and Mahmoudi, M. and Mirzaei, A. and Spotin, A. and Behravan, M. and Karimi, M. and Arbabi, M. and Nekoeian, S. and Kalantari, R. and Ghorbanzadeh, B. (2018) Molecular identification and phylogenetic classification of Leishmania spp. isolated from human cutaneous leishmaniasis in Iran: A cross-sectional study. Iranian Journal of Parasitology, 13 (3). pp. 351-361.

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Abstract

Background: In Iran, both forms of cutaneous (CL) and visceral leishmaniasis (VL) have been reported; so the accurate species identification of the parasite(s) and the analysis of genetic diversity are necessary. Methods: The smears were collected from lesions samples of 654 patients with CL, who attended local health centers in 12 provinces of Iran during 2013-2015. The smears were checked for the presence of amastigotes by light microscopy. DNA of 648 Leishmania isolates, amplified by targeting a partial sequence of ITS (18S rRNA�ITS1�5.8S rRNA�ITS2) gene. Twenty-five of all the amplicons were sequenced and analyzed with restriction fragment length polymorphism (RFLP) using the Taq1 enzyme. Results: All the smears were positive microscopically. The PCR-RFLP analysis revealed that 176 (27) CL patients were infected with L. tropica and, 478 (73) with L. major. The dominant species in all over Iran is L. major. The sequencing results of all CL patients and RFLP analysis confirmed each other. Based on our phylogenetic tree, 25 ITS DNA sequences were grouped into two clusters representing L. major and L. tropica species. Phylogenetic tree derived from the ITS sequences supports a clear divergence between L. major from the other species. Conclusion: Discrimination of Iranian Leishmania isolates using ITS gene gives us this opportunity to detect, identify, and construct the phylogenetic relationship of Iranian isolates. © 2018, Tehran University of Medical Sciences (TUMS). All rights reserved.

Item Type: Article
Additional Information: cited By 0
Subjects: Parasitology
Divisions: Faculty of Medicine > Basic Sciences > Department of Parasitological & Mycology
Depositing User: ART . editor
Date Deposited: 20 Apr 2019 11:20
Last Modified: 20 Apr 2019 11:20
URI: http://eprints.kaums.ac.ir/id/eprint/3845

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