PMID- 30223141 OWN - NLM STAT- MEDLINE DCOM- 20191014 LR - 20191014 IS - 1878-5905 (Electronic) IS - 0142-9612 (Linking) VI - 185 DP - 2018 Dec TI - COX-2 Inhibition mediated anti-angiogenic activatable prodrug potentiates cancer therapy in preclinical models. PG - 63-72 LID - S0142-9612(18)30637-9 [pii] LID - 10.1016/j.biomaterials.2018.09.006 [doi] AB - Anti-angiogenesis, i.e., blocking the angiogenic pathway, has been considered as an important component in current cancer therapeutic modalities. However, the associated benefits have proven to be modest as tumor angiogenesis and regrowth persist, probably due to other ill-defined complex angiogenic mechanisms. Herein, we developed an indomethacin (IMC) incorporating system to mediate hypoxia responsive prodrug (TA) and diagnostic agent (DA) in cancer theranostic applications. Cyclooxygenase 2 (COX-2) elevated expression in several cancer types is closely associated with severe tumor supporting vascularization factors. Our strategy utilizing COX-2 inhibition augmented the anti-angiogenetic induced hypoxia responsive prodrug activation well. Both in vitro and in vivo results proved that DA and TA exhibited specificity towards COX-2 positive (+ve) HeLa and A549 cancer cell lines and activation under hypoxic conditions. Compared with controls (R1, and anticancer drug SN-38), TA displayed prolonged tumor retention and enhanced therapeutic efficacy in xenograft mouse models at a reduced dosage. Our results significantly highlighted the importance of COX-2 blockade mediated anti-angiogenesis in complementing the hypoxia-responsive drug delivery systems (DDSs) and could to beneficial for the rapid development of more efficacious antitumor therapeutics. CI - Copyright (c) 2018 Elsevier Ltd. All rights reserved. FAU - Kim, Hyeong Seok AU - Kim HS AD - Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea. FAU - Sharma, Amit AU - Sharma A AD - Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea. FAU - Ren, Wen Xiu AU - Ren WX AD - Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, PR China; Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea. Electronic address: xrenwenxiux@hotmail.com. FAU - Han, Jiyou AU - Han J AD - Department of Biological Sciences, Laboratory of Stem Cell Research and Biotechnology, Hyupsung University, Hwasung-si, 18330, Republic of Korea. Electronic address: hanjiyou12@hanmail.net. FAU - Kim, Jong Seung AU - Kim JS AD - Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea. Electronic address: jongskim@korea.ac.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180910 PL - Netherlands TA - Biomaterials JT - Biomaterials JID - 8100316 RN - 0 (Angiogenesis Inhibitors) RN - 0 (Cyclooxygenase 2 Inhibitors) RN - 0 (Prodrugs) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - XXE1CET956 (Indomethacin) SB - IM MH - A549 Cells MH - Angiogenesis Inhibitors/*administration & dosage/therapeutic use MH - Animals MH - Cell Line, Tumor MH - Cyclooxygenase 2/metabolism MH - Cyclooxygenase 2 Inhibitors/*administration & dosage/therapeutic use MH - Drug Delivery Systems MH - HeLa Cells MH - Humans MH - Indomethacin/*administration & dosage/therapeutic use MH - Mice, Inbred BALB C MH - Mice, Nude MH - Neoplasms/*drug therapy/metabolism/pathology MH - Neovascularization, Pathologic/drug therapy/metabolism/pathology MH - Prodrugs/*administration & dosage/therapeutic use MH - Theranostic Nanomedicine MH - Tumor Hypoxia/drug effects OTO - NOTNLM OT - Anti-angiogenesis OT - COX-2 OT - Cancer therapy OT - Hypoxia OT - Indomethacin EDAT- 2018/09/18 06:00 MHDA- 2019/10/15 06:00 CRDT- 2018/09/18 06:00 PHST- 2018/06/27 00:00 [received] PHST- 2018/08/26 00:00 [revised] PHST- 2018/09/06 00:00 [accepted] PHST- 2018/09/18 06:00 [pubmed] PHST- 2019/10/15 06:00 [medline] PHST- 2018/09/18 06:00 [entrez] AID - S0142-9612(18)30637-9 [pii] AID - 10.1016/j.biomaterials.2018.09.006 [doi] PST - ppublish SO - Biomaterials. 2018 Dec;185:63-72. doi: 10.1016/j.biomaterials.2018.09.006. Epub 2018 Sep 10.