Title of article :
P-glycoprotein A Gene Expression in Glucantime-Resistant and Sensitive Leishmania major (MRHO/IR/75/ER).
Author/Authors :
Soleimanifard، Simindokht نويسنده Department of Parasitology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran. Tel: +98-9132943369, Fax: +98-3136688597 , , Arjmand، Reza نويسنده Pediatric Infectious Diseases Research Center (PIRC), Mofid Children Hospital, Shahid Beheshti University of Medical sciences, Tehran, IR Iran , , Saberi، Sedighe نويسنده Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran. Saberi, Sedighe , Khamesipour، Ali نويسنده Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, , , Kazemi، Mohammad نويسنده , , SALEHI، MANSOOR نويسنده , , Akbari، Mojtaba نويسنده Department of Pulmonary Medicine, Isfahan University of Medical Sciences, ISFAHAN-IRAN. , , Hejazi، SeyedHossein نويسنده Skin Disease and Leishmaniasis Research Center, Department of Parasitology and Mycology, School of Medicine Isfahan University of Medical Sciences, Isfahan, Iran. Hejazi, SeyedHossein
Issue Information :
فصلنامه با شماره پیاپی 0 سال 2014
Pages :
6
From page :
423
To page :
428
Abstract :

Background: Leishmaniasis is a parasitic disease caused by different species of Leishmania parasites with a wide range of clinical manifestations. Antimonial compounds such as meglumine antimoniate (glucantime) are the first line drugs for the treatment of leishmaniasis. However, according to reports of the drug resistance of parasites, the efficacy of antimonial compounds is low. The ATP-binding cassette (ABC) proteins are present in all organisms and mediate the transport of vital elements through biological membranes. One of the important mechanisms of resistance in Leishmania parasites is the overexpression of ABC efflux pumps. P-glycoprotein A (pgpA) is a related gene for ABC transporter in Leishmania species. The aim of this study was to compare the pgpA expression in laboratory-induced resistant L. major (MRHO/IR/75/ER) and sensitive parasites.

Methods: RNA extraction of promastigotes of sensitive and resistant clones was performed and total RNA was reverse transcribed. The real-time quantitative polymerase chain reaction (PCR) was used to assess RNA expression profiles and the expression levels were calculated using 2-ΔCt method.

Results: The mean expression level of pgpA mRNA was 2.70 ± 0.51 in in sensitive Leishmania clone and 6.08 ± 1.50 in resistant Leishmania clone (P = 0.021).

Conclusion: The expression of pgpA gene in resistant strains of L. major was almost fivefold higher than those in susceptible strains. Therefore, this can be used in field isolates, i.e. overexpression of the gene can prove resistance in wild type field isolates.

Journal title :
Iranian Journal of Parasitology (IJP)
Serial Year :
2014
Journal title :
Iranian Journal of Parasitology (IJP)
Record number :
2384898
Link To Document :
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