臉部寄生蟲—蠕形蟎蟲(蠕形蟲病、毛囊蟲病)
蠕形蟎蟲(Demodex mites),又稱為毛囊蟎蟲、蠕形蟲或毛囊蟲(follicular mite)
是一種生長在哺乳動物毛囊皮脂腺(pilosebaceous units)的節肢動物
The decrease in transcription of cytokines TNF-α and IFN-γ, and the unprecedented increase in IL-5, as evidenced by Tani et al. [20], appears to be due to Th2 lymphocyte overexpression in the presence of Demodex [59].
Tani等人證明,細胞因子TNF-α和IFN-γ的轉錄減少,以及IL-5的空前增加。 [20],
似乎是由於在蠕形蟎存在下Th2淋巴細胞過表達[59]。
Reduced TLR6 expression could be helping Demodex mites to proliferate.
TLR6表達降低可能有助於蠕形蟎滋生。
Further, TLR6 is moderately upregulated by autocrine IFN-gamma, IL-1 beta.
此外,TLR6被自分泌IFN-γ,IL-1β適度上調。
TLR6_G1083C (synonymous) were associated with increased IFN-γ,
TLR6_G1083C and TLR6_C745T were associated with increased IL-2
TLR6_G1083C(同義)與IFN-γ升高相關,TLR6_G1083C和TLR6_C745T與IL-2升高相關
For each of these polymorphisms, the hypo-responsive allele, as defined by
innate immunity signaling assays, was associated with increased production
of TH1-type T cell cytokines (IFN-γ or IL-2).
對於這些多態性中的每一個,通過先天免疫信號分析確定的低反應性等位基因與TH1型T細胞細胞因子(IFN-γ或IL-2)產生的增加有關。
小結1:
上述需要IFN-r對抗蠕形蟎蟲,可能和這個有關。
【TH1輔助細胞】主要作用為對抗細胞內細菌及原蟲的免疫反應,
其主要為《白介素12(IL-12)》所驅動誘發,其主要的執行的細胞因子是伽馬干擾素(IFNγ)
CD4-T細胞分泌的IFNγ會活化巨噬細胞,使其能夠吞噬並消化掉細胞內細菌及原蟲