Transforming growth factor-beta up-regulates the expression of the genes for beta 4 integrin and bullous pemphigoid antigens (BPAG1 and BPAG2) in normal and transformed human keratinocytes.

Transforming growth factor-beta up-regulates the expression of the genes for beta 4 integrin and bullous pemphigoid antigens (BPAG1 and BPAG2) in normal and transformed human keratinocytes.
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转化生长因子-β 上调正常和转化的人角质形成细胞中 β4 整合素和大疱性类天疱疮抗原(BPAG1 和 BPAG2)基因的表达。

DOI:
10.1111/1523-1747.ep12616124
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发表时间:
1992
期刊:
The Journal of investigative dermatology
影响因子:
--
通讯作者:
Uitto,J
Uitto,J
中科院分区:
--
文献类型:
--
作者:
Sollberg,S;Ryynänen,J;Olsen,DR;Uitto,J

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三种不同的蛋白质,即β4整联蛋白和230-kDa(BPAG 1)和180-kDa(BPAG 2)大疱性类天疱疮抗原,已被证明与真皮-表皮基底膜区的半桥粒共定位。在这项研究中,我们研究了相应的基因在正常和转化的人表皮角质形成细胞的文化的表达。用北方杂交和原位杂交检测这些基因的表达,用间接免疫荧光法检测β4整合素的表达。结果表明,在正常角质形成细胞中清楚地检测到所有三个基因的表达,而在两个转化细胞系中注意到极低或检测不到的表达水平。加入TGF- β1或TGF-β2(10 ng/ml)可上调所有三种蛋白的mRNA水平(最高达4.6倍)。TGF-β1的增加在低(0.15 mM)Ca++存在下孵育的角质形成细胞培养物中特别显著,并且在高(1.2 mM)Ca++存在下稍微不太明显。β4整联蛋白合成的增加也通过相应表位的增强的免疫信号记录。这些结果表明,这里研究的三个半桥粒基因都对TGF-β有反应。这些观察结果,以及TGF-β对皮肤其他成分影响的宝贵数据,表明这种细胞因子可能在皮肤基底膜区的发育和修复中发挥作用。
Three distinct proteins, namely, β4 integrins, and the 230-kDa (BPAG1) and 180-kDa(BPAG2) bullous pemphigoid antigens, have been shown to co-localize with hemidesmosomes at the dermal-epidermal basement membrane zone. In this study, we examined the expression of the corresponding genes in cultures of normal and transformed human epidermal keratinocytes. The expression of these genes was detected by Northern and in situ hybridizations, and the expression of β4 integrins was also demonstrated by indirect immunofluorescence. The results indicated clearly detectable expression of all three genes in normal keratinocytes, whereas extremely tow or undetectable levels of expression were noted in two transformed cell lines. Addition of TGF- β1 or TGF-β2 (10 ng/ml) up-regulated mRNA levels for all three proteins (up to 4.6 times). The increase by TGF-β1 was particularly striking in keratinocyte cultures incubated in the presence of low (0.15 mM) Ca++, and somewhat less pronounced in the presence of high (1.2 mM) Ca++, The increase in β4 integrin synthesis was also documented by enhanced immunosignal of the corresponding epitopes. These results indicate that the three hemidesmosomal genes studied here are all responsive to TGF-β. These observations, together with precious data on the effects of TGF-β on other components of the skin, suggest that this cytokine may play a role in the development and repair of the cutaneous basement membrane zone.
通过转化生长因子-β1 差异调节人纤维肉瘤 HT-1080 细胞的基底膜基因表达。IV 型胶原和纤连蛋白基因表达的增强与细胞培养表型的改变相关。
DOI: --
发表时间: 1991
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
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影响因子: 11.1
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发表时间: 1992
期刊: The Journal of investigative dermatology
影响因子: --
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DOI: 10.1111/1523-1747.ep12457080
发表时间: 1992
期刊: The Journal of investigative dermatology
影响因子: --
作者:
Sollberg,S;Peltonen,J;Uitto,J
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劳斯肉瘤病毒诱导的肿瘤中纤连蛋白受体表达增强。
DOI: --
发表时间: 1988
期刊: Cancer research
影响因子: 11.2
作者:
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