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. 1988 Apr;8(4):1816–1820. doi: 10.1128/mcb.8.4.1816

Amplification of the structurally and functionally altered epidermal growth factor receptor gene (c-erbB) in human brain tumors.

H Yamazaki 1, Y Fukui 1, Y Ueyama 1, N Tamaoki 1, T Kawamoto 1, S Taniguchi 1, M Shibuya 1
PMCID: PMC363345  PMID: 3380099

Abstract

By using Southern blot analysis, we found that in two cases of human glioblastoma multiforme, cells carried amplified c-erbB genes which bore short deletion mutations within the ligand-binding domain of the epidermal growth factor (EGF) receptor. The products of these mutated c-erbB genes were about 30 kilodalton (kDa) smaller than the normal 170-kDa EGF receptor, and the tumor cell membrane fractions containing the 140-kDa abnormal EGF receptor showed a significant elevation of tyrosine kinase activity without its ligand. In view of the similarity to the activated viral and cellular erbB genes in the avian system, these mutated and overexpressed EGF receptors might play a role in the onset or development of human glioblastoma cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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