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- Title
The expression dynamics of IL-17 and Th17 response relative cytokines in the trachea and spleen of chickens after infection with Cryptosporidium baileyi.
- Authors
Guang-Hui Zhao; Wen-Yu Cheng; Wan Wang; Yan-Qing Jia; Yan-Qin Fang; Shuai-Zhi Du; San-Ke Yu
- Abstract
Background Cryptosporidium baileyi is the dominant Cryptosporidium species in birds causing emerging health problems in the poultry industry, and is also a model to study the biology of Cryptosporidium spp.. IL-17 (also called IL-17A) is a hallmark pro-inflammatory cytokine of Th17 cells that plays an important role in several human autoimmune diseases and microbial infection disease of many animals, and it may play a role in Cryptosporidium infection. Methods The present study examined the mRNA level of IL-17 and Th17 response relative cytokines in the trachea and spleen of C. baileyi-infected chickens at different time points using real-time quantitative PCR (qPCR). Results All examined cytokines in the trachea were up-regulated in the infected chickens compared with the uninfected control during C. baileyi infection. Significant increased IL-17 mRNA level in the trachea was observed as early as 12 h post infection (pi), peaking at 24 h pi and 10 d pi, and declining thereafter. The transcription levels of IL-17 and Th17 response relative cytokines in spleen were also significantly increased at different time points during the infection. Conclusions IL-17 was indicated to participate in the induction of inflammation during infection of some intracellular protozoan parasites. The results in the present study suggest that IL-17 may play a role in immunity against Cryptosporidium infection, and provide basic information for determining the role of Th17 cell in Cryptosporidium infection.
- Subjects
CHICKENS as laboratory animals; IMMUNITY; INTERLEUKIN-17; MESSENGER RNA; POLYMERASE chain reaction; CYTOKINES; POULTRY
- Publication
Parasites & Vectors, 2014, Vol 7, Issue 1, p1
- ISSN
1756-3305
- Publication type
Article
- DOI
10.1186/1756-3305-7-212