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Shahrzad Amiri Darban, Ali Badiee, Mahmoud Reza Jaafari
AIM: To investigate the potential of PNC27 peptide, 12-26 of p53 with high affinity for HDM2 protein, as targeting ligand for Doxil to improve its antitumor activity. MATERIALS & METHODS: Doxil postinserted with 25, 50, 100 and 200 PNC27 peptides per liposome. Flow cytometry and confocal analysis were performed on C26 colon carcinoma (HDM2 positive) and B16F0 melanoma (HDM2 negative) cells. In vivo studies were performed on BALB/c mice bearing C26 and C57BL/6 mice bearing B16F0 tumor models...
June 1, 2017: Nanomedicine
Vida Rodríguez, Jorge Lascani, Juan A Asenjo, Barbara A Andrews
Cell-penetrating peptides are molecules with the ability to cross membranes and enter cells. Attention has been put on these peptides as a tool for drug delivery research, as they are able to serve as delivery vectors for large molecules. Intracellular delivery of bioactive peptides is a very promising research area for clinical applications, since peptides are able to simulate protein regions and thus modulate key intracellular protein-protein interactions. Therefore, evaluation of different strategies for production of these peptides is necessary...
March 2015: Applied Biochemistry and Biotechnology
Hao Yang, Shan Liu, Huawei Cai, Lin Wan, Shengfu Li, Youping Li, Jingqiu Cheng, Xiaofeng Lu
The use of cell-penetrating peptides (CPPs) as drug carriers for targeted therapy is limited by the unrestricted cellular translocation of CPPs. The preferential induction of tumor cell death by penetratin (Antp)-directed peptides (PNC27 and PNC28), however, suggests that the CPP Antp may contribute to the preferential cytotoxicity of these peptides. Using PNC27 as a molecular model, we constructed three novel peptides (PT, PR9, and PD3) by replacing the leader peptide Antp with one of three distinct CPPs (TAT, R9, or DPV3), respectively...
August 13, 2010: Journal of Biological Chemistry
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