Cited by 594Glioma Diagnosis and TreatmentHER2/EGFR in Cancer ResearchRNA Research and Splicing

Identical splicing of aberrant epidermal growth factor receptor transcripts from amplified rearranged genes in human glioblastomas

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Sugawa, N, Ekstrand, A J, James, C D, Collins, V P·1990·Proceedings of the National Academy of Sciences

Abstract

The epidermal growth factor receptor gene has been found to be amplified and rearranged in human glioblastomas in vivo. Here we present the sequence across a splice junction of aberrant epidermal growth factor receptor transcripts derived from corresponding and uniquely rearranged genes that are coamplified and coexpressed with non-rearranged epidermal growth factor receptor genes in six primary human glioblastomas. Each of these six tumors contains aberrant transcripts derived from identical splicing of exon 1 to exon 8 as a consequence of a deletion-rearrangement of the amplified gene, the extent of which is variable among these tumors. In spite of this intertumoral variability, each intragenic rearrangement results in loss of the same 801 coding bases (exons 2-7) and creation of a new codon at the novel splice site in their corresponding transcripts. These rearrangements do not, however, affect the mRNA sequence for the signal peptide, the first five codons, or the reading frame downstream of the rearrangement.

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Crossref · 10.1073/pnas.87.21.8602

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Authors
Sugawa, N., Ekstrand, A. J., James, C. D., & Collins, V. P.
Affiliations
Ludwig Cancer Research (SE)
Venue
Proceedings of the National Academy of Sciences
Published
1990-11
Volume
87
Issue
21
Pages
8602-8606
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2106161829
Cited by
594
References
33
Citations by year
2026: 4 · 2025: 5 · 2024: 13 · 2023: 17 · 2022: 13 · 2021: 22 · 2020: 15 · 2019: 14 · 2018: 13 · 2017: 23 · 2016: 16 · 2015: 21 · 2014: 30 · 2013: 30 · 2012: 27
FWCI
6.89
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
  • Health Sciences › Medicine › Oncology › HER2/EGFR in Cancer Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
Keywords
epidermal growth factor receptor, gene amplification, glioblastoma, aberrant transcripts, alternative splicing, exon deletion, reading frame, signal peptide
MeSH terms
Amino Acid Sequence, Base Sequence, DNA, Neoplasm, Exons, Glioma, Humans, Introns, Molecular Sequence Data, RNA Splicing, Transcription, Genetic, Blotting, Northern, Gene Rearrangement, Polymerase Chain Reaction, ErbB Receptors

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