Aptamer RG27 Induces Tumor Cell Death by Disrupting RasGAP-Aurora Interaction
Author Information
Author(s): Pamonsinlapatham Perayot, Hadj-Slimane Réda, Raynaud Françoise, Bickle Marc, Corneloup Claudine, Barthelaix Audrey, Lepelletier Yves, Mercier Perrine, Schapira Matthieu, Samson Jérôme, Mathieu Anne-Laure, Hugo Nicolas, Moncorgé Olivier, Mikaelian Ivan, Dufour Sylvie, Garbay Christiane, Colas Pierre
Primary Institution: Université Paris Descartes, UFR Biomédicale, Laboratoire de Pharmacochimie Moléculaire et Cellulaire, INSERM U648, Paris, France
Hypothesis
Can peptide aptamers targeting RasGAP SH3 induce tumor cell death?
Conclusion
The peptide aptamer RG27 disrupts the interaction between RasGAP and Aurora B kinase, leading to caspase-independent tumor cell death.
Supporting Evidence
- RG27 showed a growth inhibitory activity in HeLa, HCT116, and Panc 10.05 tumor cell lines.
- RG27 did not affect the viability of normal primary fibroblasts.
- Cell death induced by RG27 was not inhibited by a pan-caspase inhibitor.
Takeaway
Researchers created a special molecule that can stop cancer cells from growing by blocking a protein that helps them survive.
Methodology
The study used yeast two-hybrid assays, pull-down experiments, and colony formation assays to evaluate the effects of the peptide aptamer RG27 on tumor cells.
Potential Biases
Potential bias in the selection of aptamers and the interpretation of their effects on different cell lines.
Limitations
The study did not explore the long-term effects of RG27 or its potential side effects on normal cells.
Participant Demographics
The study involved human tumor cell lines (HeLa, HCT116, Panc 10.05) and normal primary fibroblasts.
Statistical Information
P-Value
<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website