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Updated: Jan 1, 2026

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
Published on: June 14, 2017
Modifications in the cellular proteome and their clinical application.
Belén Elguero1, David Gonilski Pacin1, Carolina Cárdenas Figueroa1
1Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - CONICET - Partner Institute of the Max Planck Society, Argentina.
Post-translational modifications (PTMs) are crucial in cancer. RSUME, a SUMOylation enhancer, correlates with tumor malignancy, highlighting PTM regulators as potential cancer biomarkers.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Post-translational modifications (PTMs) are vital protein alterations.
- Aberrant PTMs are linked to various pathologies, including cancer.
- Mass spectrometry enables simultaneous study of multiple PTMs.
Purpose of the Study:
- To investigate the role of PTMs, specifically SUMOylation, in cancer.
- To explore the potential of PTM regulators as cancer biomarkers.
- To analyze the interaction of PTMs with SUMOylation in von Hippel-Lindau (VHL) syndrome.
Main Methods:
- Utilizing advanced mass spectrometry techniques.
- Characterizing tumor PTM profiles.
- Investigating protein interactions and modifications.
Main Results:
- Altered PTM patterns are associated with cancer development.
- SUMOylation alterations are observed in cancer.
- RSUME (RWDD3), a SUMOylation enhancer, correlates with malignant parameters like angiogenesis in VHL syndrome.
Conclusions:
- PTM crosstalk, particularly involving SUMOylation, is significant in cancer.
- RSUME shows promise as a biomarker for tumor evolution.
- PTM regulators are emerging as critical biomarkers in oncology.
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