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:
影响因子:
--
通讯作者:
Uitto,J
中科院分区:
文献类型:
--
作者:
Sollberg,S;Ryynänen,J;Olsen,DR;Uitto,J
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.
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DOI:
--
发表时间:
1991
期刊:
Laboratory investigation; a journal of technical methods and pathology
影响因子:
--
作者:
Kahari,VM;Peltonen,J;Chen,YQ;Uitto,J
通讯作者:
Uitto,J
DOI:
--
发表时间:
1978
影响因子:
11.1
作者:
Antti Vaheri;Markku Kurkinen;V.;Ewert Linder;R. Timpl
通讯作者:
R. Timpl
DOI:
10.1111/1523-1747.ep12499822
发表时间:
1992
期刊:
The Journal of investigative dermatology
影响因子:
--
作者:
Uitto,J;Bauer,EA;Moshell,AN
通讯作者:
Moshell,AN
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
通讯作者:
Uitto,J
影响因子:
11.2
作者:
Saga,S;Chen,WT;Yamada,KM
通讯作者:
Yamada,KM