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Iranian Journal of Parasitology، جلد ۲، شماره ۲، صفحات ۹-۱۹
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عنوان انگلیسی Immunological Effects of Leishmania major Secretory and Excre¬tory Products on Cutaneous Leishmaniasis in BALB/c Mice
چکیده انگلیسی مقاله Background: To evaluate the immunological properties of Leishmania major excreted- secreted (E-S) products on the progress of leishmaniasis in susceptible BALB/c mice. Methods: Promastigotes of the Leishmania major were cultured and E-S products were collected during the culture preiod. Groups of BALB/c mice (n= 12) were immunized with E-S products or whole antigen. Animals were challenged with promastigotes of stationary phase culture, then mortality was followed up to 6 months. In another group of animals drainage lymph nods cells were removed and cultured for cytokines assay. Results: Activity of acteylcholinesters (AChE) and acid phosphatase (ACP) incresed time dependently. Using SDS-PAGE two major protein bands of 110 and 75 kDa were seen on the gel. Wound diameter in group receiving 24 h E-S products was significantly lower than the other experimental groups (P< 0.05). During the first 4 months of the follow up no mortality was seen in this group, but mortality was started in the second months of the challenge in other groups. The IL-4 and IL-10 level in whole Ag group were significantly higher than the other groups. In cells from animals receiving 24 h E-S products the IL-2 level was significantly higher than the other experimental groups (P< 0.05). Also the IFN g level was significantly higher both in 24 h E-S and whole Ag groups (P< 0.01). Conclusion: The 24 h E-S group corresponded with small wounds, dominant Th1 cytokines response and low level of mortality.
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نویسندگان مقاله | H Mehrani


| A Mahmoodzadeh


نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/20
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