Li Xia, Cheng Ni, Huxiao Sun, Honghua Guo, Haoyu Huang, Xueyan Cao, Jindong Xia, Xiangyang Shi and Rui Guo
{"title":"用于乳腺癌靶向磁共振成像和协同化疗-化学动力学治疗的双重药物负载金属酚网络。","authors":"Li Xia, Cheng Ni, Huxiao Sun, Honghua Guo, Haoyu Huang, Xueyan Cao, Jindong Xia, Xiangyang Shi and Rui Guo","doi":"10.1039/D4TB00462K","DOIUrl":null,"url":null,"abstract":"<p >The development of nanomedicines with simplified compositions and synergistic theranostic functionalities remains a great challenge. Herein, we develop a simple method to integrate both atovaquone (ATO, a mitochondrial inhibitor) and cisplatin within tannic acid (TA)–iron (Fe) networks coated with hyaluronic acid (HA) for targeted magnetic resonance (MR) imaging-guided chemo–chemodynamic synergistic therapy. The formed TFP@ATO-HA displayed good colloidal stability with a mean size of 95.5 nm, which could accumulate at tumor sites after circulation and be specifically taken up by metastatic 4T1 cells overexpressing CD44 receptors. In the tumor microenvironment, TFP@ATO-HA could release ATO/cisplatin and Fe<small><sup>3+</sup></small> in a pH-responsive manner, deplete glutathione, and generate reactive oxygen species with endogenous H<small><sub>2</sub></small>O<small><sub>2</sub></small> for chemodynamic therapy (CDT). Additionally, ATO could enhance chemotherapeutic efficacy by inhibiting mitochondrial respiration, relieving hypoxia, and amplifying the CDT effect by decreasing intracellular pH and elevating Fenton reaction efficiency. <em>In vivo</em> experiments demonstrated that TFP@ATO-HA could effectively inhibit tumor growth and suppress lung metastases without obvious systemic toxicity. Furthermore, TFP@ATO-HA exhibited a <em>r</em><small><sub>1</sub></small> relaxivity of 2.6 mM<small><sup>−1</sup></small> s<small><sup>−1</sup></small> and targeted MR imaging of 4T1 tumors. Dual drug-loaded metal–phenolic networks can be easily prepared and act as effective theranostic nanoplatforms for targeted MR imaging and synergistic chemo–chemodynamic therapy.</p>","PeriodicalId":83,"journal":{"name":"Journal of Materials Chemistry B","volume":null,"pages":null},"PeriodicalIF":6.1000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dual drug-loaded metal–phenolic networks for targeted magnetic resonance imaging and synergistic chemo–chemodynamic therapy of breast cancer†\",\"authors\":\"Li Xia, Cheng Ni, Huxiao Sun, Honghua Guo, Haoyu Huang, Xueyan Cao, Jindong Xia, Xiangyang Shi and Rui Guo\",\"doi\":\"10.1039/D4TB00462K\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The development of nanomedicines with simplified compositions and synergistic theranostic functionalities remains a great challenge. 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Additionally, ATO could enhance chemotherapeutic efficacy by inhibiting mitochondrial respiration, relieving hypoxia, and amplifying the CDT effect by decreasing intracellular pH and elevating Fenton reaction efficiency. <em>In vivo</em> experiments demonstrated that TFP@ATO-HA could effectively inhibit tumor growth and suppress lung metastases without obvious systemic toxicity. Furthermore, TFP@ATO-HA exhibited a <em>r</em><small><sub>1</sub></small> relaxivity of 2.6 mM<small><sup>−1</sup></small> s<small><sup>−1</sup></small> and targeted MR imaging of 4T1 tumors. 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Dual drug-loaded metal–phenolic networks for targeted magnetic resonance imaging and synergistic chemo–chemodynamic therapy of breast cancer†
The development of nanomedicines with simplified compositions and synergistic theranostic functionalities remains a great challenge. Herein, we develop a simple method to integrate both atovaquone (ATO, a mitochondrial inhibitor) and cisplatin within tannic acid (TA)–iron (Fe) networks coated with hyaluronic acid (HA) for targeted magnetic resonance (MR) imaging-guided chemo–chemodynamic synergistic therapy. The formed TFP@ATO-HA displayed good colloidal stability with a mean size of 95.5 nm, which could accumulate at tumor sites after circulation and be specifically taken up by metastatic 4T1 cells overexpressing CD44 receptors. In the tumor microenvironment, TFP@ATO-HA could release ATO/cisplatin and Fe3+ in a pH-responsive manner, deplete glutathione, and generate reactive oxygen species with endogenous H2O2 for chemodynamic therapy (CDT). Additionally, ATO could enhance chemotherapeutic efficacy by inhibiting mitochondrial respiration, relieving hypoxia, and amplifying the CDT effect by decreasing intracellular pH and elevating Fenton reaction efficiency. In vivo experiments demonstrated that TFP@ATO-HA could effectively inhibit tumor growth and suppress lung metastases without obvious systemic toxicity. Furthermore, TFP@ATO-HA exhibited a r1 relaxivity of 2.6 mM−1 s−1 and targeted MR imaging of 4T1 tumors. Dual drug-loaded metal–phenolic networks can be easily prepared and act as effective theranostic nanoplatforms for targeted MR imaging and synergistic chemo–chemodynamic therapy.
期刊介绍:
Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C.Journal of Materials Chemistry B is a Transformative Journal and Plan S compliant. Example topic areas within the scope of Journal of Materials Chemistry B are listed below. This list is neither exhaustive nor exclusive:
Antifouling coatings
Biocompatible materials
Bioelectronics
Bioimaging
Biomimetics
Biomineralisation
Bionics
Biosensors
Diagnostics
Drug delivery
Gene delivery
Immunobiology
Nanomedicine
Regenerative medicine & Tissue engineering
Scaffolds
Soft robotics
Stem cells
Therapeutic devices