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Plasmatic Signature of Disease by Differential Scanning Calorimetry (DSC)

  • Philipp O. Tsvetkov
  • François DevredEmail author
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 1964)

Abstract

Differential scanning calorimetry (DSC) has been used for several decades to characterize thermal stability of macromolecules such as proteins and DNA. It allows to determine the denaturation temperature and enthalpy of individual domains of proteins, thus giving new insights into their domain organization and ligand interaction. Over the past decade, it has been shown that this technique can also be used to study biofluids such as plasma or cerebrospinal fluid to obtain denaturation profiles. An increasing number of studies demonstrated that such profiles obtained from patients were significantly different from profiles obtained using biofluids of healthy individuals. This opens interesting perspectives for new diagnostics and monitoring tools for a large number of diseases. Nevertheless, the extensive studies of plasma samples from patients with different pathologies as well as the development of standardized methods of data analysis are necessary to reach the promising diagnostic potential of this methodology. Using plasma samples from healthy individuals and glioblastoma patients, we outline the steps necessary to obtain a plasmatic calorimetric profile with VP-DSC instrument and describe a cluster analysis of obtained data.

Key words

Differential scanning calorimetry Plasma Disease Glioblastoma 

Notes

Acknowledgments

The plasma from patients belonging to the Marseille glioma cohort (CPP number: 2014-A00585-42) was retrieved from the AP-HM tumor bank (AC-2013-1786/CRB number BB-0033-00097). Thanks to the patient association ARTC Sud for supporting the project “Vers la mise au point d’un outil de suivi non invasif des gliomes.” This work has been also supported by the Fondation ARC pour la recherche sur le cancer.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, Fac PharmMarseilleFrance

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