PMID- 36850263 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230301 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 15 IP - 4 DP - 2023 Feb 16 TI - WZB117 Decorated Metformin-Carboxymethyl Chitosan Nanoparticles for Targeting Breast Cancer Metabolism. LID - 10.3390/polym15040976 [doi] LID - 976 AB - The "Warburg effect" provides a novel method for treating cancer cell metabolism. Overexpression of glucose transporter 1 (GLUT1), activation of AMP-activated protein kinase (AMPK), and downregulation of mammalian target of rapamycin (mTOR) have been identified as biomarkers of abnormal cancer cell metabolism. Metformin (MET) is an effective therapy for breast cancer (BC), but its efficacy is largely reliant on the concentration of glucose at the tumor site. We propose a WZB117 (a GLUT1 inhibitor)-OCMC (O-carboxymethyl-chitosan)-MET combo strategy for simultaneous GLUT1 and mTOR targeting for alteration of BC metabolism. WZB117 conjugated polymeric nanoparticles were 225.67 +/- 11.5 nm in size, with a PDI of 0.113 +/- 0.16, and an encapsulation of 72.78 6.4%. OCMC pH-dependently and selectively releases MET at the tumor site. MET targets the mTOR pathway in cancer cells, and WZB117 targets BCL2 to alter GLUT1 at the cancer site. WZB117-OCMC-MET overcomes the limitations of MET monotherapy by targeting mTOR and BCL2 synergistically. WZB117-OCMC-MET activates AMPK and suppresses mTOR in a Western blot experiment, indicating growth-inhibitory and apoptotic characteristics. AO/EB and the cell cycle enhance cellular internalization as compared to MET alone. WZB117-OCMC-MET affects cancer cells' metabolism and is a promising BC therapeutic strategy. FAU - De, Anindita AU - De A AUID- ORCID: 0000-0002-0838-9474 AD - College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Republic of Korea. FAU - Wadhwani, Ashish AU - Wadhwani A AUID- ORCID: 0000-0001-8102-9486 AD - Faculty of Health Sciences, School of Pharmacy, JSS Academy of Higher Education and Research, Mauritius, Droopnath Ramphul St, Vacoas-Phoenix 73304, Mauritius. FAU - Sauraj AU - Sauraj AD - College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Republic of Korea. FAU - Roychowdhury, Parikshit AU - Roychowdhury P AD - Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, Tamil Nadu, India. FAU - Kang, Ji Hee AU - Kang JH AD - College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Republic of Korea. FAU - Ko, Young Tag AU - Ko YT AUID- ORCID: 0000-0002-6389-2507 AD - College of Pharmacy, Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Republic of Korea. FAU - Kuppusamy, Gowthamarajan AU - Kuppusamy G AD - Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research, Ooty 643001, Tamil Nadu, India. LA - eng PT - Journal Article DEP - 20230216 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC9962472 OTO - NOTNLM OT - WZB117 OT - breast cancer metabolism OT - conjugation OT - in vitro cancer efficacy OT - metformin COIS- The authors declare no conflict of interest. EDAT- 2023/03/01 06:00 MHDA- 2023/03/01 06:01 PMCR- 2023/02/16 CRDT- 2023/02/28 01:12 PHST- 2023/01/04 00:00 [received] PHST- 2023/02/04 00:00 [revised] PHST- 2023/02/14 00:00 [accepted] PHST- 2023/02/28 01:12 [entrez] PHST- 2023/03/01 06:00 [pubmed] PHST- 2023/03/01 06:01 [medline] PHST- 2023/02/16 00:00 [pmc-release] AID - polym15040976 [pii] AID - polymers-15-00976 [pii] AID - 10.3390/polym15040976 [doi] PST - epublish SO - Polymers (Basel). 2023 Feb 16;15(4):976. doi: 10.3390/polym15040976.