PMID- 35540837 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2046-2069 (Electronic) IS - 2046-2069 (Linking) VI - 8 IP - 18 DP - 2018 Mar 5 TI - A pH and magnetic dual-response hydrogel for synergistic chemo-magnetic hyperthermia tumor therapy. PG - 9812-9821 LID - 10.1039/c8ra00215k [doi] AB - To overcome the toxicity of chemotherapy, increasing attention has been paid to local drug delivery systems (DDSs). pH-Sensitive hydrogels have emerged as promising DDS materials in the biomedical field due to their remarkable characteristics. However, the pH environment in tumor varies from person to person, which makes the applicability of systems based on pH challenging. In this study, we developed a contractible hydroxypropyl methyl cellulose (HPMC)/Fe(3)O(4) hydrogel with dual-response pH and magnetic properties aiming to overcome the limitations of pH-sensitive hydrogel drug delivery systems and further increase their efficiency in tumor therapy. The HPMC/Fe(3)O(4) hydrogel could act as a drug delivery system that combines pH-sensitive triggering and magnetic dual-response drug release for synergistic chemo-magnetic hyperthermia therapy. The drug delivery profile of the HPMC/Fe(3)O(4)/doxorubicin hydrochloride (DOX) hydrogel was determined in vitro and revealed a remarkable pH-sensitive performance. After synergistic chemo-magnetic hyperthermia treatment, mice with 4T1 breast cancer xenografts recovered without any recurrence or metastasis, demonstrating the synergistic effect of chemotherapy and magnetic hyperthermia therapy. Meanwhile, reduced toxicity and superior anticancer effects were achieved due to the combined effect of the pH and magnetic hyperthermia response properties. This study demonstrated the high efficacy and low toxicity of the improved design of HPMC/Fe(3)O(4) for drug delivery, which may provide a promising approach for the application of chemo-magnetic hyperthermia cancer therapy. CI - This journal is (c) The Royal Society of Chemistry. FAU - Zhou, Xiaohan AU - Zhou X AD - Chongqing Key Laboratory of Ultrasound Molecular Imaging, State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing, The Ministry of Science and Technology, Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 PR China zhengyuanyi@163.com. FAU - Wang, Longchen AU - Wang L AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. FAU - Xu, Yanjun AU - Xu Y AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. FAU - Du, Wenxian AU - Du W AD - State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 PR China. FAU - Cai, Xiaojun AU - Cai X AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. FAU - Wang, Fengjuan AU - Wang F AD - Chongqing Key Laboratory of Ultrasound Molecular Imaging, State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing, The Ministry of Science and Technology, Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 PR China zhengyuanyi@163.com. FAU - Ling, Yi AU - Ling Y AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. FAU - Chen, Hangrong AU - Chen H AUID- ORCID: 0000-0003-0827-1270 AD - State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences Shanghai 200050 PR China. FAU - Wang, Zhigang AU - Wang Z AD - Chongqing Key Laboratory of Ultrasound Molecular Imaging, State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing, The Ministry of Science and Technology, Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 PR China zhengyuanyi@163.com. FAU - Hu, Bing AU - Hu B AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. FAU - Zheng, Yuanyi AU - Zheng Y AUID- ORCID: 0000-0002-1328-0641 AD - Chongqing Key Laboratory of Ultrasound Molecular Imaging, State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing, The Ministry of Science and Technology, Second Affiliated Hospital of Chongqing Medical University Chongqing 400010 PR China zhengyuanyi@163.com. AD - Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233 PR China. LA - eng PT - Journal Article DEP - 20180308 PL - England TA - RSC Adv JT - RSC advances JID - 101581657 PMC - PMC9078710 COIS- There are no conflicts to declare. EDAT- 2018/03/08 00:00 MHDA- 2018/03/08 00:01 PMCR- 2018/03/08 CRDT- 2022/05/11 03:58 PHST- 2018/01/08 00:00 [received] PHST- 2018/03/02 00:00 [accepted] PHST- 2022/05/11 03:58 [entrez] PHST- 2018/03/08 00:00 [pubmed] PHST- 2018/03/08 00:01 [medline] PHST- 2018/03/08 00:00 [pmc-release] AID - c8ra00215k [pii] AID - 10.1039/c8ra00215k [doi] PST - epublish SO - RSC Adv. 2018 Mar 8;8(18):9812-9821. doi: 10.1039/c8ra00215k. eCollection 2018 Mar 5.