Kinetics of the immune response to Eimeria maxima in relatively resistant and susceptible chicken lines

Kinetics of the immune response to Eimeria maxima in relatively resistant and susceptible chicken lines
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相对抗性和易感鸡系对艾美耳球虫的免疫反应动力学

DOI:
10.1101/757567
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发表时间:
2019
期刊:
--
影响因子:
--
通讯作者:
Bremner A
Bremner A
中科院分区:
--
文献类型:
--
作者:
Bremner A

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极大艾美耳球虫是鸡球虫病的常见原因,球虫病对家禽生产有巨大的经济影响。免疫脚趾的知识。最大限度的抗药性和导致鸡种之间以及来自同一品种鸡的同源品系之间观察到的不同抗性水平的具体机制是必需的。本研究旨在确定对感染表现出不同抗性(品系C.B12)和易感品系(品系15I)的两个白来航鸡近交系免疫反应动力学的差异。马克西玛。用该病毒感染C.B12和15I系鸡。分别于感染后第2、4、6、8天对感染空肠组织进行最大基因组和转录组分析。RNA-Seq分析表明,感染后细胞因子转录反应的速度和幅度在两个品系之间存在差异。特别是,干扰素-γ和IL-10在空肠中的转录本在品系C.B12(在4dpi)比品系15i(在6dpi)更早积累。品系C.B12鸡在4dpi时空肠组织中IFNG和IL10mRNA的表达增加,而品系15I的转录延迟,但增加的幅度更大。RT-qPCR和ELISAs证实了转录研究的结果。血清IL-10升高与E升高密切相关。与品系C.B12相比,品系15I的增殖率最高。总体而言,这些发现表明,早期诱导干扰素-γ和IL-10反应,以及由rna-seq鉴定的4dpi的免疫相关基因,可能是耐药TOE的关键。马克西玛。
Eimeria maximais a common cause of coccidiosis in chickens, a disease which has a huge economic impact on poultry production. Knowledge of immunity toE. maximaand the specific mechanisms that contribute to differing levels of resistance observed between chicken breeds and between congenic lines derived from a single breed of chickens is required. This study aimed to define differences in the kinetics of the immune response of two inbred lines of White Leghorn chickens that exhibit differential resistance (line C.B12) or susceptibility (line 15I) to infection byE. maxima. Line C.B12 and 15I chickens were infected withE. maximaand transcriptome analysis of infected jejunal tissue was carried out at 2, 4, 6 and 8 days post-infection (dpi). RNA-Seq analysis revealed differences in the rapidity and magnitude of cytokine transcription responses post-infection between the two lines. In particular, IFN-γ and IL-10 transcripts in the jejunum accumulated earlier in line C.B12 (at 4 dpi) compared to line 15I (at 6 dpi). Line C.B12 chickens exhibited increases ofIFNGandIL10mRNA in the jejunum at 4 dpi, whereas in line 15I transcription was delayed but increased to a greater extent. RT-qPCR and ELISAs confirmed the results of the transcriptomic study. Higher serum IL-10 correlated strongly with higherE. maximareplication in line 15I compared to line C.B12 chickens. Overall, the findings suggest early induction of the IFN-γ and IL-10 responses, as well as immune-related genes at 4 dpi identified by RNA-Seq, may be key to resistance toE. maxima.
DOI: 10.1371/journal.pone.0110330
发表时间: 2014
期刊: PloS one
影响因子: 3.7
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