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Publication No: IN202211050486 [India] Application No: 202211050486
Title: RAS binding peptides as selective inhibitors of mtor signaling complex-2
Publication Date: 08-03-2024 File Date: 02-09-2022
Inventor(s): Wahajul Haq; Smrati Bhadauria; Deepali Pandey; Javed Miyan; Varsha Singh; Narayan Kumar Goswami; Ashish Arora; Jiaur Rahaman Gayen; Sarita Tripathi; Damodara Reddy Nandarapu; Jhajhan Lal
IPC Classification: A61B10/00, C07D417/12, H02J7/02, H01L51/50, A47G19/22
Abstract: The present invention relates  to the discovery of small synthetic peptides exhibiting Ras binding ability. The peptides are designed from the Ras binding domain of  mSIN1 responsible for binding to Ras for specific upregulation of mTOR complex-2. The synthetic Ras binding peptides have the  ability to perturb the binding of Ras with endogenous mSIN1 as a result of competitive binding. These peptides are first-in-class,  selective mTOR complex-2 inhibitors excluding any effect on mTOR complex-1. The novel Ras binding peptides are stable to  proteases and able to penetrate into the cell as demonstrated using FITC/Rhodamine tagged peptide in cell culture assay. These Ras- binding peptides have demonstrated a unique property of arresting cell migration and invasion which are two critical cellular processes  being regulated by mTORC2. These inhibitory effects of candidate peptide(s) were also replicated in in vivo studies conducted in the  syngenic 4T1/BalbC, orthotopic mouse model of breast cancer. Thus, the invention provides novel Ras binding peptides as first-in- class mTOR complex-2 inhibitors that not only selectively inhibit mTORC2 signaling and ensuing processes in vitro but in vivo as  well.
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