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蛋白激酶C异酶在带血单细胞和中性粒细胞中不成熟/缺乏

Khalida Perveen^1,2, Antonio Ferrante^1,2,3

¹Department of Immunopathology, SA Pathology at the Women's and Children's Hospital, North Adelaide, SA 5006, Australia.

International journal of molecular sciences

|November 9, 2024

概括

在带血T细胞中蛋白激酶C (PKC) 的降低与儿童过敏有关. 这项研究在新生儿单细胞和中性粒细胞中发现了低PKC水平,但这些细胞中的PKCζ没有影响T细胞发育.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
生物化学生化学

背景情况:

在带血 (CB) T 细胞中减少蛋白激酶 C (PKC) 的表达与儿童过敏和T-helper (Th) 2细胞因子概况有关.
新生儿免疫细胞功能,包括单细胞和中性粒细胞,通常低于成人水平,促使人们对这些细胞中PKC异酶表达的研究.

研究的目的:

研究带血 (CB) 单细胞和中性粒细胞中各种蛋白激酶C (PKC) 异酶的表达水平.
确定CB单细胞和中性粒细胞中的PKCζ水平是否与T细胞向Th1或Th2细胞因子概况的发展相关.

主要方法:

与成人血液相比,对CB单细胞和中性粒细胞中PKC异酶表达的定量分析.
在CB单细胞和中性粒细胞中T细胞PKCζ水平和PKCζ水平之间的相关性分析.
评估T细胞细胞因子 (干扰因子-和干扰因子-4) 产生的反应,以评估Th1/Th2倾向的刺激.

主要成果:

与成年人血液相比,带血 (CB) 单细胞和中性粒细胞的多重PKC异酶水平明显较低 (包括单细胞中的PKCα,β2, ε, θ, μ, ζ,和λ/ι;中性粒细胞中的PKCα,β2, η, θ, μ, ζ,和λ/ι).
T细胞PKCζ水平与CB中的单细胞PKCζ水平呈正相关性,但与中性细胞PKCζ水平无相关性.
单细胞和中性细胞PKCζ水平与T细胞向Th1或Th2细胞因子表型发展的调节无关.

结论:

新生儿可以在单细胞和中性粒细胞内显示各种PKC异酶的缺陷,反映T细胞的发现.
与T细胞不同,细胞 (单细胞和中性粒细胞) 中的PKCζ水平似乎没有调节Th1或Th2免疫反应的发展.

关键词:

在 PKC PKC 中,你会发现.过敏是一种过敏.儿童感染儿童感染在带血中,T细胞和T细胞.细胞因子细胞因子不成熟的免疫缺陷.单细胞 (Monocytes) 是一种单细胞.中性粒细胞中性粒细胞.

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