A covalent PIN1 inhibitor selectively targets cancer cells by a dual mechanism of action

The prolyl isomerase PIN1, a critical modifier of multiple signalling pathways, is overexpressed in the majority of cancers and its activity strongly contributes to tumour initiation and progression. Inactivation of PIN1 function conversely curbs tumour growth and cancer stem cell expansion, restores chemosensitivity and blocks metastatic spread, thus providing the rationale for a therapeutic strategy based on PIN1 inhibition. Notwithstanding, potent PIN1 inhibitors are still missing from the arsenal of anti-cancer drugs. By a mechanism-based screening, we have identified a novel covalent PIN1 inhibitor, KPT-6566, able to selectively inhibit PIN1 and target it for degradation. We demonstrate that KPT-6566 covalently binds to the catalytic site of PIN1. This interaction results in the release of a quinone-mimicking drug that generates reactive oxygen species and DNA damage, inducing cell death specifically in cancer cells. Accordingly, KPT-6566 treatment impairs PIN1-dependent cancer phenotypes in vitro and growth of lung metastasis in vivo.

Medienart:

E-Artikel

Erscheinungsjahr:

2017

Erschienen:

2017

Enthalten in:

Zur Gesamtaufnahme - volume:8

Enthalten in:

Nature communications - 8(2017) vom: 09. Juni, Seite 15772

Sprache:

Englisch

Beteiligte Personen:

Campaner, Elena [VerfasserIn]
Rustighi, Alessandra [VerfasserIn]
Zannini, Alessandro [VerfasserIn]
Cristiani, Alberto [VerfasserIn]
Piazza, Silvano [VerfasserIn]
Ciani, Yari [VerfasserIn]
Kalid, Ori [VerfasserIn]
Golan, Gali [VerfasserIn]
Baloglu, Erkan [VerfasserIn]
Shacham, Sharon [VerfasserIn]
Valsasina, Barbara [VerfasserIn]
Cucchi, Ulisse [VerfasserIn]
Pippione, Agnese Chiara [VerfasserIn]
Lolli, Marco Lucio [VerfasserIn]
Giabbai, Barbara [VerfasserIn]
Storici, Paola [VerfasserIn]
Carloni, Paolo [VerfasserIn]
Rossetti, Giulia [VerfasserIn]
Benvenuti, Federica [VerfasserIn]
Bello, Ezia [VerfasserIn]
D'Incalci, Maurizio [VerfasserIn]
Cappuzzello, Elisa [VerfasserIn]
Rosato, Antonio [VerfasserIn]
Del Sal, Giannino [VerfasserIn]

Links:

Volltext

Themen:

Antineoplastic Agents
EC 5.2.1.8
Enzyme Inhibitors
Journal Article
NIMA-Interacting Peptidylprolyl Isomerase
PIN1 protein, human
Reactive Oxygen Species
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 02.01.2019

Date Revised 02.01.2019

published: Electronic

Citation Status MEDLINE

doi:

10.1038/ncomms15772

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM272779504