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Identification and testing of novel CARP-1 functional mimetic compounds as inhibitors of non-small cell lung and triple negative breast cancers

Muthu, Magesh and Somagoni, Jaganmohan and Cheriyan, Vino T. and Munie, Sara and Levi, Edi and Ashour, Abdelkader Elbadawy Abbas and Yassin, Alaa Eldeen B. and Alafeefy, Ahmed M. and Sochacki, Paula and Polin, Lisa A. and Reddy, Kaladhar B. and Larsen, Scott D. and Singh, Mandip and Rishi, Arun K. (2015) Identification and testing of novel CARP-1 functional mimetic compounds as inhibitors of non-small cell lung and triple negative breast cancers. Journal of Biomedical Nanotechnology, 11 (9). pp. 1608-1627. ISSN 1550-7033 E-ISSN 1550-7041

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The triple negative breast cancer (TNBCs) and non-small cell lung cancers (NSCLCs) often acquire mutations that contribute to failure of drugs in clinic and poor prognosis, thus presenting an urgent need to develop new and improved therapeutic modalities. Here we report that CARP-1 functional mimetic (CFMs) compounds 4 and 5, and 4.6, a structurally related analog of CFM-4, are potent inhibitors of TNBC and NSCLC cells in vitro. Cell growth suppression by CFM-4 and -4.6 involved interaction and elevated expression of CARP-1/CCAR1 and Death Effector Domain (DED) containing DNA binding (DEDD)2 proteins. Apoptosis by these compounds also involved activation of pro-apoptotic stress-activated kinases p38 and JNK1/2, cleavage of PARP and loss of mitotic cyclin B1. Both the CFMs inhibited abilities of NSCLC and TNBC cells to migrate, invade, and form colonies in suspension, while disrupting tubule formation by the human umbilical vein endothelial cells (HUVECs). Nano-lipid formulation of CFM-4 (CFM-4 NLF) enhanced its serum bioavailability when compared with the free CFM-4. Oral administration of CFM-4 NLF reduced weights and volume of the xenografted tumors derived from A549 NSCLC and MDA-MB-231 TNBC cells. Although no gross tissue or histological toxicities were noticed, the immuno-histochemical analysis revealed increased CARP-1 and DNA fragmentation in tumors of the CFM-4 NLF-treated animals. In conclusion, while stimulation of pro-apoptotic CARP-1 and DEDD2 expression and their binding underscore a novel mechanism of apoptosis transduction by CFM compounds, our proof-of-concept xenograft studies demonstrate therapeutic potential of CFM-4 for TNBC and NSCLC.

Item Type: Article (Journal)
Additional Information: 8129/64285
Uncontrolled Keywords: CFMs; TNBCs; NSCLC; CARP-1; SAPKs; Apoptosis; NLF
Subjects: R Medicine > RM Therapeutics. Pharmacology > RM300 Drugs and their action
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Medicine > Department of Basic Medical
Depositing User: Dr. Abdelkader Ashour
Date Deposited: 30 Aug 2018 14:28
Last Modified: 30 Aug 2018 14:28
URI: http://irep.iium.edu.my/id/eprint/64285

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