title: The Role of Liposomal CpG ODN on the Course of L. major Infection in BALB/C Mice.
abstract: BACKGROUND
  Historically, leishmanization is the most effective protective measure against Cutaneous Leishmaniasis (CL), CL lesion induced by leishmanization sometimes takes a long time to heal. Manipulation of leishmanization inoculums needed to induce a mild and acceptable CL lesion. The aim of this study was to explore if liposomal form of CpG ODN (Cytosin phosphate Guanin Oligodeoxynucleotides) mixed with Leishmania major would induce a milder lesion size in Balb/c mice.
  
  
  METHODS
  This study was performed in Biotechnology Research Center, Mashhad, and Center for Research and Training in Skin Diseases and Leprosy, Tehran, Iran during 2008-2009. Different groups of BALB/c mice were subcutaneously (SC) inoculated with L. major mixed with liposomal form of CpG ODN, or L. major plus free CpG ODN, or L. major mixed with empty liposomes or L. major in PBS. The lesion onset and the size of lesion were recorded; the death rate was also monitored.
  
  
  RESULTS
  Footpad thickness was significantly (P<0.01) smaller, death rate was also significantly (P<0.05) lower in the mice received L. major mixed with liposomal CpG ODN or free CpG ODN than control groups received L. major in PBS or L. major plus liposomes, also mice which received L. major mixed with CpG ODN in soluble form showed a significantly (P<0.001) smaller lesion size than control groups.
  
  
  CONCLUSIONS
  CpG ODN seems to be an appropriate immunopotentiator mixed with Leishmania stabilate in leishmanization.
authors.affiliation: Department of Parasitology, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Hejazi
authors.forename: M
authors.initials: M
authors.lastname: Tasbihi
authors.forename: Mr
authors.initials: M
authors.lastname: Jaafari
authors.forename: A
authors.initials: A
authors.lastname: Badiee
authors.forename: N
authors.initials: N
authors.lastname: Pestechian
authors.forename: A
authors.initials: A
authors.lastname: Javadi
authors.forename: A
authors.initials: A
authors.lastname: Khamesipour