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Colvin L, Tu D, Dunlap D, Rios A, Coté G. A Polarity-Sensitive Far-Red Fluorescent Probe for Glucose Sensing through Skin. BIOSENSORS 2023; 13:788. [PMID: 37622875 PMCID: PMC10452146 DOI: 10.3390/bios13080788] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/28/2023] [Accepted: 08/02/2023] [Indexed: 08/26/2023]
Abstract
The field of glucose biosensors for diabetes management has been of great interest over the past 60 years. Continuous glucose monitoring (CGM) is important to continuously track the glucose level to provide better management of the disease. Concanavalin A (ConA) can reversibly bind to glucose and mannose molecules and form a glucose biosensor via competitive binding. Here, we developed a glucose biosensor using ConA and a fluorescent probe, which generated a fluorescent intensity change based on solvatochromism, the reversible change in the emission spectrum dependent on the polarity of the solvent. The direction in which the wavelength shifts as the solvent polarity increases can be defined as positive (red-shift), negative (blue-shift), or a combination of the two, referred to as reverse. To translate this biosensor to a subcutaneously implanted format, Cyanine 5.5 (Cy5.5)-labeled small mannose molecules were used, which allows for the far-red excitation wavelength range to increase the skin penetration depth of the light source and returned emission. Three Cy5.5-labeled small mannose molecules were synthesized and compared when used as the competing ligand in the competitive binding biosensor. We explored the polarity-sensitive nature of the competing ligands and examined the biosensor's glucose response. Cy5.5-mannotetraose performed best as a biosensor, allowing for the detection of glucose from 25 to 400 mg/dL. Thus, this assay is responsive to glucose within the physiologic range when its concentration is increased to levels needed for an implantable design. The biosensor response is not statistically different when placed under different skin pigmentations when comparing the percent increase in fluorescence intensity. This shows the ability of the biosensor to produce a repeatable signal across the physiologic range for subcutaneous glucose monitoring under various skin tones.
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Affiliation(s)
- Lydia Colvin
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Dandan Tu
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Darin Dunlap
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Alberto Rios
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Gerard Coté
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
- Center for Remote Health Technologies and Systems, Texas A&M Engineering Experiment Station, College Station, TX 77843, USA
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2
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Ouyang R, Zhang Q, Cao P, Yang Y, Zhao Y, Liu B, Miao Y, Zhou S. Efficient improvement in chemo/photothermal synergistic therapy against lung cancer using Bi@Au nano-acanthospheres. Colloids Surf B Biointerfaces 2023; 222:113116. [PMID: 36603409 DOI: 10.1016/j.colsurfb.2022.113116] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Novel highly hydrophilic and biocompatible bismuth nanospheres with gold nanoparticles growing outside (Bi@Au nano-acanthospheres, Bi@Au NASs) were synthesized through a simple procedure, which demonstrated to be a promising photothermal agent owing to the ultrahigh photothermal conversion efficiency (η = 46.6 %). The as-prepared Bi@Au NASs showed excellent blood compatibility and fairly low cytotoxicity to human lung cancer A549 cells, as well as efficient photothermal ablation (PTA) therapy induced by a near-infrared laser. Under the 808 nm laser radiation, the tumour temperature could be elevated by ∼25 °C high enough to kill the cancer cells. Moreover, the anticancer drug doxorubicin hydrochloride (DOX) was successfully loaded in Bi@Au NASs with a loading content as high as 16.78 % and released under a pH sensitive release profile, a characteristic beneficial for intravenous delivery of DOX into cancer cells for chemotherapy. The presence of the Bi element enabled Bi@Au NASs to act as a favourable computed tomography (CT) contrast medium for CT imaging-guided tumour treatment. Compared with cancer treatment through either photothermal therapy or chemotherapy, the chemo-photothermal synergistic therapy using Bi@Au NASs as both a photothermal agent and a drug carrier has efficiently enhanced the in vitro and in vivo therapeutic effects in cancer treatment.
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Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Qiupeng Zhang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Penghui Cao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yang Yang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuefeng Zhao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Baolin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Shuang Zhou
- Cancer Institute, Tongji University School of Medicine, Shanghai 200092, China.
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3
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Yu Y, Wang B, Sun M, Zhang Y, Hou L, Wang S, Chen T, Yang F, Ma Z. Lysosomal activable Vorinostat carrier-prodrug self-assembling with BPQDs enables photothermal oncotherapy to reverse tumor thermotolerance and metastasis. Int J Pharm 2022; 617:121580. [PMID: 35202725 DOI: 10.1016/j.ijpharm.2022.121580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/27/2022] [Accepted: 02/10/2022] [Indexed: 12/16/2022]
Abstract
Photothermal therapy (PTT) is becoming increasing prevalent in clinic for eradicating the primary tumor and improving cancer patients' compliance. However, photothermal resistance and distal metastasis still haunt the tumor treatment with PTT. Herein, on the basis that histone deacetylase acetylase inhibitor (HDACis) could activate the expression of anti-tumor gene and accelerate the differentiation and apoptosis of tumor cells, we propose that HDACis supplementing PTT could overcome those obstacles with appropriate drug-controlled release strategy. Thus, we fabricated a nano-complex of lysosomal activable vorinostat (SAHA) carrier-prodrug encapsulating black phosphorus quantum dots (BPQDs@PPS) to counter those challenges in PTT. With spherical morphology and favorable bio-safety, BPQDs@PPS could release BPQDs and Vorinostat spontaneously in lysosome, not only effectively inhibiting tumor growth, but also reversing tumor thermotolerance and metastasis within a PTT procedure. Especially, both western blot and immunofluorescence analysis validate that Vorinostat enables PTT to reverse tumor thermotolerance and distal metastasis by down-regulation of HSP70 and up-regulation of H3. Therefore, this research not only reveals the mechanism how HDACis supplement PTT in reversing tumor thermotolerance and metastasis, but also provides a promising prospect to upgrade clinical photothermal therapy.
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Affiliation(s)
- Yingjie Yu
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Bingkai Wang
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Miao Sun
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Yunchang Zhang
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Lei Hou
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Sizhen Wang
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Tianheng Chen
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Feng Yang
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China
| | - Zhiqiang Ma
- School of Pharmacy, Naval Medical University, Shanghai, People's Republic of China.
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4
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Tao Y, Li X, Wu Z, Chen C, Tan K, Wan M, Zhou M, Mao C. Nitric oxide-driven nanomotors with bowl-shaped mesoporous silica for targeted thrombolysis. J Colloid Interface Sci 2021; 611:61-70. [PMID: 34929439 DOI: 10.1016/j.jcis.2021.12.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/23/2021] [Accepted: 12/10/2021] [Indexed: 01/11/2023]
Abstract
Vein thrombosis is one of the most serious types of cardiovascular disease. During the traditional treatment, due to the excessive blood flow rate, the drug utilization rate at the thrombus site is low and the thrombolysis efficiency is poor. In this study, bowl-shaped silica nanomotors driven by nitric oxide (NO) are designed to target the thrombus surface by modifying arginine-glycine-aspartic acid (RGD) polypeptide, and simultaneously loading l-arginine (LA) and thrombolytic drug urokinase (UK) in its mesopore structure. LA can react with excessive reactive oxygen species (ROS) in the thrombus microenvironment to produce NO, thus promoting the movement of nanomotors to improve the retention efficiency and utilization rate of drugs in the thrombus site, and at the same time achieve the effect of eliminating ROS and reducing the oxidative stress of inflammatory endothelial cells. The loaded UK can dissolve thrombus quickly. It is worth mentioning that NO can not only be used as a power source of nanomotors, but also can be used as a therapeutic agent to stimulate the growth of endothelial cells and reduce vascular injury. This therapeutic agent based on nanomotor technology is expected to provide support for future research on thrombus treatment.
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Affiliation(s)
- Yingfang Tao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiaoyun Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ziyu Wu
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Chenglong Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Kaiyuan Tan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Min Zhou
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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5
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Engineered porous/hollow Burkholderia pseudomallei loading tumor lysate as a vaccine. Biomaterials 2021; 278:121141. [PMID: 34564035 DOI: 10.1016/j.biomaterials.2021.121141] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/23/2022]
Abstract
Due to its size, shape, and inherent expression of pathogen-associated molecular patterns and invasion-assistant adhesion proteins, Burkholderia pseudomallei can easily attach to, and then be internalized by, dendritic cells (DCs), leading to more efficient antigen cross-presentation if modified as carrier. Herein, we engineered Burkholderia pseudomallei as a porous/hollow carrier (SB) for loading tumor lysates (L) and adjuvant CpG (C) to be used as a tumor vaccine (SB-LC). We found that the adhesion proteins of Burkholderia pseudomallei promote internalization of the SB-LC vaccine by DCs, and result in enhanced DC maturation and antigen cross-presentation. SB-LC induces robust cellular and humoral antitumor responses that synergistically inhibit tumor growth with minimal adverse side effects in several tumor models. Moreover, SB-LC vaccination reverses the immunosuppressive tumor microenvironment, apparently as a result of CD8+-induced tumor ferroptosis. Thus, SB-LC is a potential model tumor vaccine for translating into a clinically viable treatment option.
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Li X, Wu R, Chen H, Li T, Jiang H, Xu X, Tang X, Wan M, Mao C, Shi D. Near-Infrared Light-Driven Multifunctional Tubular Micromotors for Treatment of Atherosclerosis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30930-30940. [PMID: 34156244 DOI: 10.1021/acsami.1c03600] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
One of the difficulties in atherosclerosis treatment is that the ablation of inflammatory macrophages, repair of vascular endothelial injury, and anti-tissue proliferation should be considered. However, there are few studies that can solve the abovementioned problems simultaneously. Herein, we present a kind of near-infrared (NIR) light-driven multifunctional mesoporous/macroporous tubular micromotor which can rapidly target the damaged blood vessels and release different drugs. Their motion effect can promote themselves to penetrate into the plaque site, and the generated heat effect caused by NIR irradiation can realize the photothermal ablation of inflammatory macrophages. Furthermore, these micromotors can rapidly release the vascular endothelial growth factor for endothelialization and slowly release paclitaxel for antiproliferation to achieve synergistic treatment of atherosclerosis. In vivo results demonstrated that the micromotors can achieve a good therapeutic effect for atherosclerosis. This kind of micro/nanomotor technology with a complex porous structure for drug loading will bring a more potential treatment platform for the disease.
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Affiliation(s)
- Xiaoyun Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Rui Wu
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Huan Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Ting Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Huiming Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xingquan Xu
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xueting Tang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Dongquan Shi
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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7
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Lu Z, Zhang Y, Wang Y, Tan GH, Huang FY, Cao R, He N, Zhang L. A biotin-avidin-system-based virus-mimicking nanovaccine for tumor immunotherapy. J Control Release 2021; 332:245-259. [DOI: 10.1016/j.jconrel.2021.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/19/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
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8
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Wan M, Wang Q, Wang R, Wu R, Li T, Fang D, Huang Y, Yu Y, Fang L, Wang X, Zhang Y, Miao Z, Zhao B, Wang F, Mao C, Jiang Q, Xu X, Shi D. Platelet-derived porous nanomotor for thrombus therapy. SCIENCE ADVANCES 2020; 6:eaaz9014. [PMID: 32766445 PMCID: PMC7385437 DOI: 10.1126/sciadv.aaz9014] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 03/18/2020] [Indexed: 05/04/2023]
Abstract
The treatment difficulties of venous thrombosis include short half-life, low utilization, and poor penetration of drugs at thrombus site. Here, we develop one kind of mesoporous/macroporous silica/platinum nanomotors with platelet membrane (PM) modification (MMNM/PM) for sequentially targeting delivery of thrombolytic and anticoagulant drugs for thrombus treatment. Regulated by the special proteins on PM, the nanomotors target the thrombus site and then PM can be ruptured under near-infrared (NIR) irradiation to achieve desirable sequential drug release, including rapid release of thrombolytic urokinase (3 hours) and slow release of anticoagulant heparin (>20 days). Meantime, the motion ability of nanomotors under NIR irradiation can effectively promote them to penetrate deeply in thrombus site to enhance retention ratio. The in vitro and in vivo evaluation results confirm that the synergistic effect of targeting ability from PM and motion ability from nanomotors can notably enhance the thrombolysis effect in both static/dynamic thrombus and rat model.
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Affiliation(s)
- Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qi Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Rongliang Wang
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Rui Wu
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Ting Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Dan Fang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yangyang Huang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yueqi Yu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Leyi Fang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xingwen Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yinghua Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zhuoyue Miao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Fenghe Wang
- Jiangsu Province Key Laboratory of Environmental Engineering, School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xingquan Xu
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Dongquan Shi
- Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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Xu Q, Shen Y, Zhang Y, Shao X. PEGylated cyanine dye nanoparticles as photothermal agents for mosquito and cancer cell control. Bioorg Med Chem Lett 2019; 29:2398-2404. [PMID: 31201064 DOI: 10.1016/j.bmcl.2019.05.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/15/2019] [Accepted: 05/29/2019] [Indexed: 10/26/2022]
Abstract
Conversion of light energy to heat via photothermal conversion agents (PTCAs) is of great interest and has potential applications. Here, we described a heptamethine cyanine (Cy7) dye nanoparticles (Cy7-PEG NPs) prepared from heptamethine cyanine and poly(ethylene glycol) (PEG400) via a simple solvothermal process as novel PTCA. Cy7-PEG NPs have absorption maximum at about 808 nm and good photothermal conversion ability. Upon irradiation, Cy7-PEG NPs can effectively kill living mosquito larva (Aedes albopictus) through heat generation. Furthermore, Cy7-PEG NPs have excellent phototoxic activity to Sf9, HeLa and MCF-7 cells. Our results indicated that Cy7-PEG NPs can be used as controlling agent for mosquito larvae and cancer cells.
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Affiliation(s)
- Qi Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yujun Shen
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yongchao Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xusheng Shao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China; State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Lu Z, Xu L, He N, Huang F, Xu T, Li L, Zhang Y, Zhang L. Cy5.5-MSA-G250 nanoparticles (CMGNPs) induce M1 polarity of RAW264. 7 macrophage cells via TLR4-dependent manner. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Cherukula K, Uthaman S, Park IK. "Navigate-dock-activate" anti-tumor strategy: Tumor micromilieu charge-switchable, hierarchically activated nanoplatform with ultrarapid tumor-tropic accumulation for trackable photothermal/chemotherapy. Theranostics 2019; 9:2505-2525. [PMID: 31131050 PMCID: PMC6525992 DOI: 10.7150/thno.33280] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 02/19/2019] [Indexed: 11/05/2022] Open
Abstract
The delivery of therapeutics into tumors remains a challenge in nanoparticle-mediated drug delivery. However, effective therapies such as photothermal therapy (PTT) are limited by quick systemic clearance and non-specific biodistribution. Anti-tumor strategies tailored to accommodate both tumor accumulation/retention and cellular internalization under a single platform would be a promising strategy. This work demonstrates a hierarchical activating strategy that would exhibit enhanced circulation and rapid tumor-tropism as well as facilitate tumor penetration, followed by tumor-specific drug release to realize trackable photothermal/chemotherapy. Methods: We engineered a lithocholic acid-conjugated disulfide-linked polyethyleneimine micelle (LAPMi) loaded with paclitaxel (LAPMi-PTX, L), followed by the electrostatic adsorption of indocyanine green (ICG, I) on LAPMI-PTX and subsequently coated them with thermosensitive DPPC and DSPE-PEG-NH2 lipids (L), producing Lipid/ICG/LAPMi-PTX (LIL-PTX) nanoparticles (NPs). The characteristics of NPs, including physicochemical characterization, photothermal & pH responsiveness, cell uptake, tumor spheroid penetration, anti-tumor efficacy and hierarchical activation of LIL-PTX NPs were investigated in vitro and in vivo by using CT26 cell line. The anti-metastatic potential of LIL-PTX NPs were demonstrated using 4T1 orthotopic tumor model. Results: The NPs synthesized possessed charge switchability in the mildly acidic pH, and were laser- and pH-responsive. Dual stimuli-responsive nature of LIL-PTX NPs improved the disposition of therapeutics to the tumor, reflected by enhanced intracellular uptake, tumor spheroid penetration and in vitro cytotoxicity studies. LIL-PTX NPs readily switched its surface charge from neutral to positive upon reaching the tumor milieu, thus resulting in rapid tumor tropism and accumulation. Under near-infrared laser irradiation, the thermosensitive lipids on LIL-PTX NPs were deshielded, and the tumor-penetrating LAPMi-PTX was subsequently exposed to the tumor milieu, thus resulting in enhanced intracellular internalization. Next, LAPMi-PTX evaded the endo-lysosomes, thereby releasing the PTX through the degradation of LAPMi mediated by intracellular GSH in the tumor. LIL-PTX NPs significantly improved the therapy by eradicating primary tumors completely and suppressing their subsequent lung metastasis. Conclusion: The improved therapeutic index is due to enhanced passive targeting by rapid tumor-tropic accumulation and tumor penetration by laser-driven exposure of LAPMi, thereby improving the therapeutic delivery for image-guided photothermal/chemotherapy.
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