PMID- 37842917 OWN - NLM STAT- MEDLINE DCOM- 20231114 LR - 20231118 IS - 1526-4602 (Electronic) IS - 1525-7797 (Print) IS - 1525-7797 (Linking) VI - 24 IP - 11 DP - 2023 Nov 13 TI - Membrane-Active Thermoresponsive Block Copolymers Containing a Diacylglycerol-Based Segment: RAFT Synthesis, Doxorubicin Encapsulation, and Evaluation of Cytotoxicity against Breast Cancer Cells. PG - 4854-4868 LID - 10.1021/acs.biomac.3c00580 [doi] AB - Herein, we report the formation of drug delivery systems from original thermoresponsive block copolymers containing lipid-based segments. Two acrylate monomers derived from palmitic- or oleic-acid-based diacylglycerols (DAGs) were synthesized and polymerized by the reversible addition-fragmentation chain transfer (RAFT) method. Well-defined DAG-based polymers with targeted molar masses and narrow molar mass distributions were next used as macro-chain transfer agents (macro-CTAs) for the polymerization of N-isopropylacrylamide (NIPAAm) or N-vinylcaprolactam (NVCL). The obtained amphiphilic block copolymers were formed into polymeric nanoparticles (PNPs) with and without encapsulated doxorubicin and characterized. Their biological assessment indicated appropriate cytocompatibility with the representatives of normal cells. Furthermore, compared to the free drug, increased cytotoxicity and apoptosis or necrosis induction in breast cancer cells was documented, including a highly aggressive and invasive triple-negative MDA-MB-231 cell line. FAU - Kurowska, Izabela AU - Kurowska I AD - Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, Bialystok 15-245, Poland. AD - Doctoral School of Exact and Natural Sciences, University of Bialystok, Bialystok 15-245, Poland. FAU - Markiewicz, Karolina H AU - Markiewicz KH AUID- ORCID: 0000-0002-4857-0489 AD - Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, Bialystok 15-245, Poland. FAU - Niemirowicz-Laskowska, Katarzyna AU - Niemirowicz-Laskowska K AD - Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, Bialystok 15-295, Poland. FAU - Destarac, Mathias AU - Destarac M AUID- ORCID: 0000-0002-9718-2239 AD - Laboratoire IMRCP, CNRS UMR 5623, Paul Sabatier University, Toulouse Cedex 09 31062, France. FAU - Wielgat, Przemyslaw AU - Wielgat P AD - Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, Bialystok 15-274, Poland. FAU - Misztalewska-Turkowicz, Iwona AU - Misztalewska-Turkowicz I AUID- ORCID: 0000-0001-6191-6053 AD - Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, Bialystok 15-245, Poland. FAU - Misiak, Pawel AU - Misiak P AUID- ORCID: 0000-0002-6882-3519 AD - Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, Bialystok 15-245, Poland. FAU - Car, Halina AU - Car H AD - Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, Bialystok 15-295, Poland. AD - Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, Bialystok 15-274, Poland. FAU - Wilczewska, Agnieszka Z AU - Wilczewska AZ AUID- ORCID: 0000-0001-8587-6711 AD - Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, Bialystok 15-245, Poland. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20231016 PL - United States TA - Biomacromolecules JT - Biomacromolecules JID - 100892849 RN - 0 (Diglycerides) RN - 80168379AG (Doxorubicin) RN - 0 (Polymers) SB - IM MH - Humans MH - Female MH - *Breast Neoplasms/drug therapy MH - Diglycerides MH - Doxorubicin/pharmacology MH - Polymers/pharmacology MH - Drug Delivery Systems/methods PMC - PMC10646981 COIS- The authors declare no competing financial interest. EDAT- 2023/10/16 12:42 MHDA- 2023/11/14 06:42 PMCR- 2023/11/15 CRDT- 2023/10/16 06:53 PHST- 2023/11/14 06:42 [medline] PHST- 2023/10/16 12:42 [pubmed] PHST- 2023/10/16 06:53 [entrez] PHST- 2023/11/15 00:00 [pmc-release] AID - 10.1021/acs.biomac.3c00580 [doi] PST - ppublish SO - Biomacromolecules. 2023 Nov 13;24(11):4854-4868. doi: 10.1021/acs.biomac.3c00580. Epub 2023 Oct 16.