scholarly journals Alternative splicing variant of RHBDD2 is associated with cell stress response and breast cancer progression

2018 ◽  
Author(s):  
Romina Canzoneri ◽  
Mart�n Rabassa ◽  
Agustina Gurruchaga ◽  
Valeria Ferretti ◽  
Sabina Palma ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Alternative Splicing ◽  
Stress Response ◽  
Cancer Progression ◽  
Cell Stress ◽  
Breast Cancer Progression ◽  
Splicing Variant ◽  
Cell Stress Response ◽  
Alternative Splicing Variant

scholarly journals Isoform-specific functions of Numb in breast cancer progression, metastasis and proteome remodeling

2021 ◽  
Author(s):  
Yangjing Zhang ◽  
Sascha E. Dho ◽  
Craig D. Simpson ◽  
Kamal Othman ◽  
Andrew Bondoc ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Alternative Splicing ◽  
Cancer Progression ◽  
Progression Free Survival ◽  
Breast Cancer Progression ◽  
Protein Isoforms ◽  
Multiple Cancer ◽  
Cancer Types ◽  
Exon 9 ◽  
Progression Factor

ABSTRACTDeregulated alternative splicing of the endocytic adaptor NUMB resulting in high expression of Exon9in (exon 9-containing) isoforms has been reported in several cancer types. However, the role of Numb isoform expression in tumor progression and the underlying mechanisms remain elusive. Here, we report greater exon 9 inclusion in multiple cancer types including all subtypes of breast cancer, and correlation of higher exon 9 inclusion in patients with worse prognosis. Deletion of Exon9in in breast cancer cells leads to reduced cell growth and a significant decrease of lung metastasis in orthotopic xenograft experiments. Quantitative mass spectrometry revealed downregulation of proteins involved in EMT and ECM organization and remodeling of the endocytic protein network in cells lacking the Exon9in Numb isoforms. Exon 9 deletion also results in reduced surface levels of ITGβ5, and downstream signaling to ERK and SRC, consistent with enhance lysosomal targeting mediated by the remaining Exon9sk (exon 9 skipping) Numb isoforms.SIGNIFICANCEExpression of NUMB Exon9in protein isoforms correlate with worse progression free survival, particularly in breast cancer. Our findings also reveal that Exon9in isoforms promote breast cancer progression by relieving Numb mediated down regulation of integrins and implicate Numb alternative splicing as a progression factor in multiple cancer types.

Beta haemoglobin (hbb) is a novel marker of breast cancer progression

2014 ◽  
Author(s):  
Mattia Capulli ◽  
Adriano Angelucci ◽  
Anna Teti ◽  
Patrizia Sanita ◽  
Luca Ventura ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Progression ◽  
Breast Cancer Progression
Sign in / Sign up

Export Citation Format

Share Document