Unknown

Dataset Information

0

Clinical significance of intronic variants in BRAF inhibitor resistant melanomas with altered BRAF transcript splicing.


ABSTRACT: Alternate BRAF splicing is the most common mechanism of acquired resistance to BRAF inhibitor treatment in melanoma. Recently, alternate BRAF exon 4-8 splicing was shown to involve an intronic mutation, located 51 nucleotides upstream of BRAF exon 9 within a predicted splicing branch point. This intronic mutation was identified in a single cell line but has not been examined in vivo. Herein we demonstrate that in three melanomas biopsied from patients with acquired resistance to BRAF inhibitors, alternate BRAF exon 4-8 splicing is not associated with this intronic branch point mutation. We also confirm that melanoma cells expressing BRAF splicing variants retain exquisite sensitivity to existing FDA-approved MEK inhibitors.

SUBMITTER: Pupo GM 

PROVIDER: S-EPMC5426037 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

altmetric image

Publications

Clinical significance of intronic variants in BRAF inhibitor resistant melanomas with altered <i>BRAF</i> transcript splicing.

Pupo Gulietta M GM   Boyd Suzanah C SC   Fung Carina C   Carlino Matteo S MS   Menzies Alexander M AM   Pedersen Bernadette B   Johansson Peter P   Hayward Nicholas K NK   Kefford Richard F RF   Scolyer Richard A RA   Long Georgina V GV   Rizos Helen H  

Biomarker research 20170511


Alternate BRAF splicing is the most common mechanism of acquired resistance to BRAF inhibitor treatment in melanoma. Recently, alternate BRAF exon 4-8 splicing was shown to involve an intronic mutation, located 51 nucleotides upstream of <i>BRAF</i> exon 9 within a predicted splicing branch point. This intronic mutation was identified in a single cell line but has not been examined in vivo. Herein we demonstrate that in three melanomas biopsied from patients with acquired resistance to BRAF inhi  ...[more]

Similar Datasets

| S-EPMC4307785 | biostudies-literature
| S-EPMC2835495 | biostudies-literature
| S-EPMC8862475 | biostudies-literature
| S-EPMC2651569 | biostudies-literature
| S-EPMC10565508 | biostudies-literature
2020-11-14 | GSE161430 | GEO
| S-EPMC5908289 | biostudies-literature
| S-EPMC7650068 | biostudies-literature
| S-EPMC10563346 | biostudies-literature
| S-EPMC5410044 | biostudies-literature