Affordable Access

Host-parasite Responses Outcome Regulate the Expression of Antimicrobial Peptide Genes in the Skin of BALB/c and C57BL/6 Murine Strains Following Leishmania major MRHO/IR/75/ER Infection

Authors
  • DANESHVAR, Hamid1
  • TAVAKOLI KARESHK, Amir2
  • SHARIFI, Iraj3, 4
  • KEYHANI, Alireza4
  • TAVAKOLI OLIAEE, Razieh3
  • ASADI, Arash3
  • 1 Dept. of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
  • 2 Infectious Disease Research Center, Birjand University of Medical Sciences, Birjand, Iran
  • 3 Dept. of Parasitology and Mycology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
  • 4 Leishmaniasis Research Center, Kerman University of Medical Sciences, Kerman, Iran
Type
Published Article
Journal
Iranian Journal of Parasitology
Publisher
Tehran University of Medical Sciences
Publication Date
Jan 01, 2018
Volume
13
Issue
4
Pages
515–523
Identifiers
PMID: 30697304
PMCID: PMC6348226
Source
PubMed Central
Keywords
License
Green

Abstract

Background: Different background of immunity responses determine resistance or susceptibility of certain mouse strains to Leishmania major infection. Some have been well known previously. Antimicrobial peptides (AMPs) such as cathelicidins and defensins are unique fragments of innate immunity system with well-known effects against the invasion pathogens. Despite their outstanding roles and being of extensive cases of cutaneous leishmaniasis (CL) caused by L. major , they have been less studied in Leishmania fields. The aim of present study was to determine whether these components play a role in the protection of skin against Leishmania infections. Methods: The animal model of Leishmania infection was established by the subcutaneous inoculation of 5×106(parasites/ml) from the stationary phase of L. major promastigotes to BALB/c and C57BL/6 mice from January 2016 to August 2016 in Kerman Province, southeast of Iran. After 1, 3 and 7 d of post-infection (PI), the samples needed for detecting of the mRNA levels of mouse beta-defensin (mBD)-1, mBD2, mBD3, mBD4, mBD6, cathlin-related antimicrobial peptide (CRAMP), interleukin (IL)-10, IL-12 and parasite load were taken under standard methods. Results: The findings related to cytokines profiles in BALB/c (↑IL-10, ↓IL-12) and C57BL/6 mouse strains (↓IL-10, ↑IL-12) demonstrated that immunity system has been accurately activated during CL caused by L. Major parasites. We also observed a significant up-regulation of all aforementioned AMPs genes in BALB/c mice at selected times compared to another strain. Conclusion: CL occurred in BALB/c mice in spite of the fact that the expression of AMPs was higher than the other strain. AMPs genes are well expressed to provide defense against the parasites that have increased and escaped from immunity system but cannot create an absolute protection.

Report this publication

Statistics

Seen <100 times