| RRC ID |
39078
|
| 著者 |
Toyoda H, Komurasaki T, Uchida D, Morimoto S.
|
| タイトル |
Distribution of mRNA for human epiregulin, a differentially expressed member of the epidermal growth factor family.
|
| ジャーナル |
Biochem J
|
| Abstract |
We have recently identified epiregulin as a new growth regulator and a member of the epidermal growth factor (EGF) family. Epiregulin has certain characteristics that are different from those of the classical members of the EGF family, EGF and transforming growth factor alpha, including mitogenic responses on several normal cells and binding to EGF receptors on epidermoid carcinoma A431 cells. In the present study we cloned and identified the expression of human epiregulin transcript. The human epiregulin gene encoded a 163-residue putative transmembrane precursor containing an EGF-like domain in the internal segment, and the structural organization was similar to that of other members of the EGF family that bind to EGF receptors. Northern blot analysis showed the expression of human epiregulin to be mainly on peripheral blood macrophages and the placenta in normal tissues, and was highest on epithelial tumour cell lines in various types of tumour cell lines. The expression profile was quite different from that of other members of the EGF family in normal and tumour cells. Recombinant expression in mammalian cells also showed that human epiregulin was secreted as a soluble form of approx. 5 kDa that is biologically active on the basis of the stimulation of DNA synthesis. Our findings suggest that epiregulin is involved in certain physiological processes such as maintenance or development of normal cell growth, and the progression of carcinomas.
|
| 巻・号 |
326 ( Pt 1)(Pt 1)
|
| ページ |
69-75
|
| 公開日 |
1997-8-15
|
| DOI |
10.1042/bj3260069
|
| PMID |
9337852
|
| PMC |
PMC1218638
|
| MeSH |
3T3 Cells
Amino Acid Sequence
Animals
Base Sequence
Chlorocebus aethiops
Cloning, Molecular
Epidermal Growth Factor / biosynthesis*
Epidermal Growth Factor / chemistry
Epidermal Growth Factor / genetics*
Epiregulin
Humans
Mice
Molecular Sequence Data
Organ Specificity / genetics
Placenta
RNA, Messenger / metabolism*
Recombinant Proteins / biosynthesis
Sequence Analysis, DNA
Tumor Cells, Cultured
Vero Cells
|
| IF |
4.097
|
| 引用数 |
102
|
|
WOS 分野
|
BIOCHEMISTRY & MOLECULAR BIOLOGY
|
| リソース情報 |
| ヒト・動物細胞 |
Verots S3(RCB0707) |
