Profiles of cytokine mRNA expressed by dendritic epidermal T cells in mice.

Profiles of cytokine mRNA expressed by dendritic epidermal T cells in mice.
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小鼠树突状表皮 T 细胞表达的细胞因子 mRNA 谱。

DOI:
10.1111/1523-1747.ep12365917
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发表时间:
1993
期刊:
The Journal of investigative dermatology
影响因子:
--
通讯作者:
Takashima,A
Takashima,A
中科院分区:
--
文献类型:
--
作者:
Matsue,H;CruzJr,PD;Bergstresser,PR;Takashima,A

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除朗格汉斯细胞外,小鼠表皮还含有第二树突状细胞群,即Thy-1+/CD3+ CD4-/CD8-/ t细胞受体- v γ3/Vδ1+。这些树突状表皮T细胞(DETC)现在被认为包含上皮组织驻留γδT细胞家族中的一个元素。在本研究中,使用逆转录聚合酶链反应检测detc细胞因子mRNA的表达。新分离的Thy-1+表皮细胞组成性地表达γ-干扰素mRNA,但不表达IL-2。在Con A刺激后24 h内,这些细胞表达γ-干扰素和IL-2 mRNA,但不表达IL-4。IL-2 mRNA的快速表达只发生在Thy-1+群体中,并且以Con - a依赖的方式发生。将新鲜分离的表皮细胞首先用Con A刺激,然后用IL-2进行大规模扩增20-24 d,在Con A的二次刺激下,出现表达IL-4 mRNA的细胞。这些“短期”DETC细胞系还表达IL-2、干扰素-γ、IL-1α、IL-3、IL-6、IL-7、肿瘤坏死因子α和β以及粒细胞巨噬集落刺激因子的mRNA。有趣的是,IL-4和IL-6的mRNA在长期(>1年)DETC系7-17和12-12中不再检测到。此外,一个细胞系(7-17)保持了IL-3 mRNA的表达,而另一个细胞系(12-12)失去了这种表达能力。这些结果强调了一个概念,即作为表皮中的常驻细胞,detc表现出几种不同的免疫相关活性,细胞因子mRNA谱的异质性表明detc可能分为功能亚群。
The epidermis of mice contains, in addition to Langerhans cells, a second dendritic population that is Thy-1+/CD3+ CD4-/CD8-/T-cell receptor-Vγ3/Vδ1+. These dendritic epidermal T cells (DETC) are now thought to comprise one element in the family of epithelial tissue-resident γδT cells. In the present study, DETCs were examined for their expression of mRNA for cytokines, using a reverse transcription-polymerase chain reaction. Freshly isolated Thy-1+ epidermal cells constitutively expressed mRNA for γ-interferon, but not IL-2. Within 24 h after stimulation with Con A, these cells then expressed mRNA for γ-interferon and IL-2, but not IL-4. The rapid onset of expression of mRNA for IL-2 occurred exclusively within the Thy-1+ population, and in a Con A-dependent fashion. When freshly isolated epidermal cells were first stimulated with Con A and then expanded in bulk with rIL-2 for 20–24 d, cells expressing IL-4 mRNA then emerged, upon secondary stimulation with Con A. These “short-term” DETC lines also expressed mRNA for IL-2, interferon-γ, IL-1α, IL-3, IL-6, IL-7, tumor necrosis factor α and β, and granulocyte macrophage-colony stimulating factor. Interestingly, mRNA for IL-4 and IL-6 was no longer detected in long-term (>1 year) DETC lines 7–17 and 12–12. In addition, one line (7–17) maintained IL-3 mRNA expression, whereas another (12–12) had lost this capacity. These results emphasize the concept that, as resident cells in epidermis, DETCs exhibit several different immunorelevant activities, and the heterogeneity in cytokine mRNA profiles suggests that DETCs may divide into functional subsets.
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DOI: --
发表时间: 1986
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
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肿瘤坏死因子α维持鼠表皮兰格汉细胞在培养中的生存能力,但与粒细胞/巨噬细胞刺激因子相反,而没有诱导其功能成熟。
DOI: 10.1084/jem.171.1.159
发表时间: 1990-01-01
影响因子: 15.3
作者:
KOCH, F;HEUFLER, C;KAMPGEN, E;SCHNEEWEISS, D;BOCK, G;SCHULER, G
通讯作者: SCHULER, G
小鼠 Thy-1 树突状表皮细胞:前体频率分析和伴刀豆球蛋白 A 反应细胞的克隆。
DOI: 10.1111/1523-1747.ep12560835
发表时间: 1988
期刊: The Journal of investigative dermatology
影响因子: --
作者:
Takashima,A;Nixon-Fulton,JL;Bergstresser,PR;Tigelaar,RE
通讯作者: Tigelaar,RE
免疫介导的组织损伤的细胞因子模式。
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Yamamura,M;Wang,XH;Ohmen,JD;Uyemura,K;Rea,TH;Bloom,BR;Modlin,RL
通讯作者: Modlin,RL