Peptide Coated Platinum Nanoparticles as Antitumor Agents

Informations projet

PepPtNPAntiCan

N° de convention de subvention: 705970

DOI

10.3030/705970

Projet clôturé

Date de signature de la CE 24 Février 2016

Date de début 1 Mars 2016

Date de fin 28 Février 2018

Financé au titre de

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Coût total

€ 187 419,60

Contribution de l’UE

€ 187 419,60

Coordonné par

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Switzerland

Periodic Reporting for period 1 - PepPtNPAntiCan (Peptide Coated Platinum Nanoparticles as Antitumor Agents)

Période du rapport: 2016-03-01 au 2018-02-28

Résumé du contexte et des objectifs généraux du projet

Cisplatin is an efficient chemotherapeutic drug, yet it suffers from two main disadvantages: evolving drug resistance and relatively high toxicity. There is therefore a need to develop successful candidates for anticancer treatments with reduced toxicity and improved activity. One of the latest approaches for dealing with these drawbacks has been the development of platinum nanoparticles (PtNPs) as a source of Pt(II) ions. However, this solution is far from effective, mainly due to obstacles in cancer cell targeting and a lack of nuclear penetration.
The overall objectives of this project were to form PtNPs in a straight forward process that have high cytotoxicity and tumor selectivity.

Travail effectué depuis le début du projet jusqu’à la fin de la période considérée dans le rapport et principaux résultats atteints jusqu’à présent

We have developed peptide-coated PtNPs that are stable for more than 12 months, both as a suspension in water and as a dry powder. The peptide was identified from a combinatorial screening of more than 3000 different sequences and further optimized to provide for high water solubility and long-time stability of the PtNPs. The PtNPs form in a single step and are small and monodisperse. In addition, they were formed in water at room temperature. They were also covalently functionalized with moieties that allow for monitoring and improving their cellular uptake, before and also after PtNP formation. This resulted in PtNPs that exhibit high cytotoxicity and specificity for certain types of carcinoma cells.

Progrès au-delà de l’état des connaissances et impact potentiel prévu (y compris l’impact socio-économique et les conséquences sociétales plus larges du projet jusqu’à présent)

Based on the successful in vitro results, we are currently pursuing further in vivo investigation, if successful, we expect these PtNPs to be patented and be further investigated toward pharmaceutical application. In this case, the potential impact of such system can be enormous in the field of chemotherapeutics.

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