Identification and characterization of post-translational modifications: Clinical implications.

Area of Science:

• Biochemistry
• Proteomics
• Clinical Diagnostics

Background:

• Post-translational modifications (PTMs) create protein variants that regulate cellular functions.
• PTMs are increasingly linked to diseases like cancer and metabolic disorders.
• Accurate detection of PTMs is vital for understanding disease mechanisms and developing diagnostics.

Purpose of the Study:

• To review the clinical translation of mass spectrometric applications for PTM analysis.
• To highlight the challenges and opportunities in using mass spectrometry for PTM diagnostics.
• To focus on the role of mass spectrometry in assessing PTMs in disease states.

Main Methods:

• Review of current literature on mass spectrometry-based proteomics for PTM analysis.
• Comparison of mass spectrometry with antibody-based methods for PTM detection.
• Discussion of clinical translation challenges for mass spectrometric applications.

Main Results:

• Mass spectrometry provides the necessary accuracy and resolution for PTM identification and quantification.
• Antibody-based methods are insufficient for detecting subtle PTM alterations.
• Significant challenges remain in the clinical translation of mass spectrometric PTM analysis.

Conclusions:

• Mass spectrometry holds great promise as a diagnostic tool for PTMs in disease.
• Overcoming clinical translation hurdles is essential for leveraging mass spectrometry's potential.
• Further development is needed to integrate mass spectrometric PTM analysis into routine clinical practice.