RG7112, a Small-Molecule Inhibitor of MDM2, Enhances Trabectedin Response in Soft Tissue Sarcomas
Abstract
MDM2 is a critical negative regulator of the p53 tumor suppressor protein. Selected sarcoma subtypes are being treated with Trabectedin in second line, which promotes DNA damage and p53-dependent apoptosis. The aim of this study was to evaluate the improvement of Trabectedin response with MDM2 inhibitors in soft tissue sarcomas. The antitumor effects of Trabectedin, Nutlin-3A and RG7112 as single agents or in combination were examined in vitro. RG7112 significantly synergized with Trabectedin in MDM2-amplified liposarcoma cells, representing a promising new therapeutic strategy for the treatment of sarcomas with MDM2 amplification.
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The DNA damaging drug Trabectedin was reported to synergize with the MDM2 inhibitor RG7112.
“The DNA damaging drug Trabectedin, currently used in second line for treating soft tissue sarcoma, was also reported to synergize with the MDM2 inhibitor RG711246, perhaps as a result of p53 accumulation (through MDM2 inhibition) and activating p53 modifications (through DNA damage response).”
From CDK4 inhibition diminishes p53 activation by MDM2 antagonists (2018) · cites this paper as [46]
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- Authors
- Obrador-Hevia, A., Martinez-Font, E., Felipe-Abrio, I., Calabuig-Fariñas, S., Serra-Sitjar, M., López-Guerrero, J. A., Ramos, R., Alemany, R., & Martín-Broto, J.
- Affiliations
- ,
- Health Research Institute of the Balearic Islands (ES)
- 6Laboratory of Molecular Biology, Fundación Instituto Valenciano de Oncología, Valencia, Spain
- Hospital Universitario Son Espases (ES)
- ORCID
- Alemany, Regina
- Venue
- Cancer Investigation
- Publisher
- Informa UK Limited
- Published
- 2015-08-17
- Volume
- 33
- Issue
- 9
- Pages
- 440-450
- ISSN
- 0735-7907 (ISSN-L)
- 1532-4192
- OpenAlex
- W1943530843
- Cited by
- 24
- References
- 33
- Citations by year
- 2025: 1 · 2024: 3 · 2021: 4 · 2020: 2 · 2019: 4 · 2018: 5 · 2017: 3 · 2016: 2
- FWCI
- 1.46
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Cancer Investigation (publishedVersion)
- PubMed (publishedVersion)
- Repository of Digital Objects for Teaching Research and Culture (University of Valencia) (submittedVersion)
- Funders
- PharmaMar
- Instituto de Salud Carlos III
- Topics
- Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Sarcoma Diagnosis and Treatment
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
- Keywords
- RG7112, MDM2 inhibitors, trabectedin, soft tissue sarcoma, liposarcoma, MDM2 amplification, p53, Nutlin-3a, drug synergy, combination therapy, second-line therapy
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