, Volume 28, Issue 2, pp 425–430 | Cite as

Reactions of cytotoxic metallodrugs with lysozyme in pure DMSO explored through UV–Vis absorption spectroscopy and ESI MS

  • Tiziano Marzo
  • Aleksandar Savić
  • Lara Massai
  • Elena Michelucci
  • Tibor J. Sabo
  • Sanja Grguric-Šipka
  • Luigi MessoriEmail author


The reactions of four representative metallodrugs with the model protein HEWL were investigated within a non-aqueous environment-i.e. in pure DMSO- through UV–Vis absorption spectroscopy and ESI MS analysis. Notably, formation of a variety of metallodrug-protein adducts was clearly documented. This is the first example for this kind of protein metalation reactions carried out within a pure organic solvent. It is shown that the applied solution conditions greatly affect the nature of the formed adducts, this being well accounted for by the fact that the overall protein conformation is greatly perturbed within pure DMSO; in addition, the activation profiles of the studied metallodrugs are also highly dependent on the nature of the solvent. The implications of these results are discussed.


Anticancer complexes Protein interaction Lysozyme ESI-MS Metallodrugs 



Beneficentia Stiftung, CIRCMSB and COST ACTION CM-1105 are gratefully acknowledged for generous financial support.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Tiziano Marzo
    • 1
  • Aleksandar Savić
    • 2
  • Lara Massai
    • 1
  • Elena Michelucci
    • 3
  • Tibor J. Sabo
    • 2
  • Sanja Grguric-Šipka
    • 2
  • Luigi Messori
    • 1
    Email author
  1. 1.(MetMed) Department of Chemistry “U. Schiff”University of FlorenceSesto Fiorentino, FlorenceItaly
  2. 2.Faculty of ChemistryUniversity of BelgradeBelgradeSerbia
  3. 3.Mass Spectrometry Center (CISM)University of FlorenceSesto Fiorentino, FlorenceItaly

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