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Sun J, Zhao X, Shen H, Dong J, Rong S, Cai W, Zhang R. CD44-targeted melanin-based nanoplatform for alleviation of ischemia/reperfusion-induced acute kidney injury. J Control Release 2024; 368:1-14. [PMID: 38367863 DOI: 10.1016/j.jconrel.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/24/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Ischemia/reperfusion (I/R)-induced acute kidney injury (AKI) is a serious kidney disease with high morbidity and mortality. However, there is no effective clinical treatment strategy. Herein, we developed a CD44 targeting nanoplatform based on HA-assembled melanin NPs covalently coupled with dexamethasone for I/R-induced AKI therapy by alleviating oxidative/inflammatory- induced damage. The constructed HA-MNP-DXM NPs had good dispersion, stability, and broad-spectrum scavenging capabilities against multiple reactive free radicals. Moreover, the NPs could be efficiently internalized and exhibited antioxidative, anti-inflammatory, and antiapoptotic effects in CoCl2-stimulated renal tubular epithelial NRK-52E cells. Furthermore, the I/R-induced AKI murine model was established to evaluate the in vivo performance of NPs. The results suggested the NPs could specifically target impaired kidneys upon intravenous administration according to NIR-II fluorescence imaging and showed high biosafety. Importantly, the NPs could improve renal function, alleviate oxidative stress and inflammatory reactions, inhibit apoptosis of tubular cells, and restore mitochondrial structure and function, exhibiting excellent therapeutic effects. Further therapeutic mechanism indicated the NPs maintained the cellular/mitochondrial redox balance by modulating the Nrf2 and HO-1 expression. Therefore, the NPs can be a promising therapeutic candidate for the treatment of I/R-induced AKI.
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Affiliation(s)
- Jinghua Sun
- First Hospital of Shanxi Medical University, Taiyuan, 030001, China; Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China
| | - Xuhui Zhao
- First Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Hao Shen
- School of Pharmacy, Shanxi Medical University, Taiyuan, 030001, China
| | - Jie Dong
- Shanxi Medical University, Taiyuan, 030001, China
| | - Shuo Rong
- Shanxi Medical University, Taiyuan, 030001, China
| | - Wenwen Cai
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China
| | - Ruiping Zhang
- The Radiology Department of Shanxi Provincial People' Hospital, Five Hospital of Shanxi Medical University, Taiyuan, 030001, China.
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2
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Sun J, Han J, Dong J, Zhai X, Zhang R. A kidney-targeted chitosan-melanin nanoplatform for alleviating diabetic nephropathy through modulation of blood glucose and oxidative stress. Int J Biol Macromol 2024; 264:130663. [PMID: 38453104 DOI: 10.1016/j.ijbiomac.2024.130663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 02/12/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Diabetic nephropathy (DN) is a serious complication in patients with diabetes, whose expansion process is closely related to oxidative stress caused by hyperglycemia. Herein, we report a chitosan-targeted dagliflozin-loaded melanin nanoparticle (CSMDNPs) that can selectively accumulate in injured kidneys, reduce blood glucose, and alleviate the oxidative stress-induced damage. CSMDNPs possess good dispersion and physiological stability, responsive release at acidic pH, and strong scavenging activities for various reactive oxygen and reactive nitrogen radicals. Moreover, in vitro experiments confirm that CSMDNPs have good biocompatibility, enable targeted uptake in NRK-52E renal tubular cells, and also well alleviate high glucose-induced oxidative stress. In the STZ-induced DN model, CSMDNPs exhibit high targeting distribution and retention in the damaged kidneys of DN mice according to photoacoustic imaging. At the end of CSMDNPs treatment, DN mice show a decrease in fasting blood glucose and a return to near-normal urine and blood indices. H&E, PAS, and masson pathological staining also indicates that CSMDNPs significantly inhibit the expansion of renal interstitium, glycogen, and collagen deposition, showing excellent therapeutic effects. In addition, melanin acts as both drug carrier and antioxidant without exogenous carrier introduction, exhibiting better biosafety and translational prospects.
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Affiliation(s)
- Jinghua Sun
- First Hospital of Shanxi Medical University, Taiyuan, 030001, China
| | - Juanjuan Han
- School of Pharmacy, Shanxi Medical University, Taiyuan, 030001, China
| | - Jie Dong
- School of Pharmacy, Shanxi Medical University, Taiyuan, 030001, China
| | - Xiaoyan Zhai
- Department of Baisic Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Ruiping Zhang
- The Radiology Department of Shanxi Provincial People's Hospital, Five Hospital of Shanxi Medical University, Taiyuan, 030001, China.
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3
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Liu J, Yu X, Braucht A, Smith S, Wang C. N-Cadherin Targeted Melanin Nanoparticles Reverse the Endothelial-Mesenchymal Transition in Vascular Endothelial Cells to Potentially Slow the Progression of Atherosclerosis and Cancer. ACS Nano 2024; 18:8229-8247. [PMID: 38427686 DOI: 10.1021/acsnano.3c12281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Endothelial-mesenchymal transition (EndoMT) of vascular endothelial cells has recently been considered as a key player in the early progression of a variety of vascular and nonvascular diseases, including atherosclerosis, cancer, and organ fibrosis. However, current strategies attempting to identify pharmacological inhibitors to block the regulatory pathways of EndoMT suffer from poor selectivity, unwanted side effects, and a heterogeneous response from endothelial cells with different origins. Furthermore, EndoMT inhibitors focus on preventing EndoMT, leaving the endothelial cells that have already undergone EndoMT unresolved. Here, we report the design of a simple but powerful nanoparticle system (i.e., N-cadherin targeted melanin nanoparticles) to convert cytokine-activated, mesenchymal-like endothelial cells back to their original endothelial phenotype. We term this process "Reversed EndoMT" (R-EndoMT). R-EndoMT allows the impaired endothelial barriers to recover their quiescence and intactness, with significantly reduced leukocyte and cancer cell adhesion and transmigration, which could potentially stop atheromatous plaque formation and cancer metastasis in the early stages. R-EndoMT is achieved on different endothelial cell types originating from arteries, veins, and capillaries, independent of activating cytokines. We reveal that N-cadherin targeted melanin nanoparticles reverse EndoMT by downregulating an N-cadherin dependent RhoA activation pathway. Overall, this approach offers a different prospect to treat multiple EndoMT-associated diseases by designing nanoparticles to reverse the phenotypical transition of endothelial cells.
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Affiliation(s)
- Jinyuan Liu
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
- BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
| | - Xiao Yu
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
- BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
| | - Annaliese Braucht
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
- BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
| | - Steve Smith
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
- BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
| | - Congzhou Wang
- Nanoscience and Biomedical Engineering, South Dakota School of Mines and Technology, 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
- BioSystems Networks & Translational Research (BioSNTR), 501 E St Joseph Street, Rapid City, South Dakota 57701, United States
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Pan D, Xu Y, Wang X, Wang L, Yan J, Shi D, Yang M, Chen M. Evaluation the in vivo behaviors of PM 2.5 in rats using noninvasive PET imaging with mimic particles. Chemosphere 2023; 339:139663. [PMID: 37506893 DOI: 10.1016/j.chemosphere.2023.139663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
Inhaled PM2.5 particles is harmful to human health. However, real-time tracking of PM2.5 particles and dynamic evaluation of the pharmacokinetic behaviors in vivo are still challenging. Here, PET imaging is utilized to noninvasively monitor the in vivo behavior of PM2.5 particles in rats. To mimic aerosol PM2.5 particles suspended in ambient air, 89Zr-labeled melanin nanoparticles (89Zr-MNP) are nebulized into microscopic liquid particles with a mean size of 2.5 μm. Then, the 89Zr-labeled PM2.5 mimic particles (89Zr-PM2.5) are administrated into rats via inhalation. PET imaging showed that 89Zr-PM2.5 mainly accumulated in the lungs for up to 384 h after administration. Besides, we also observe that a small amount of 89Zr-PM2.5 can penetrate the brain through the inhalation. Further PET imaging showed that enhanced uptakes of 18F-FDG and 18F-DPA-714 were found in the brain of rats upon PM2.5 mimic particle exposure, which revealed that pulmonary exposure to PM2.5 could cause potential damages to the brain. Note that abnormal glucose metabolism was reversed, but the neuroinflammation was permanent and could not be alleviated after ceasing PM2.5 exposure. Our results demonstrate that PET is a sensitive and feasible tool for evaluating the in vivo behaviors of PM2.5.
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Affiliation(s)
- Donghui Pan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China
| | - Yuping Xu
- Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China
| | - Xinyu Wang
- Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China
| | - Lizhen Wang
- Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China
| | - Junjie Yan
- Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China
| | - Dongjian Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Min Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Nuclear Medicine, National Health Commission, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, 214063, China.
| | - Mingqing Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.
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Michael HSR, Subiramanian SR, Thyagarajan D, Mohammed NB, Saravanakumar VK, Govindaraj M, Maheswari KM, Karthikeyan N, Ramesh Kumar C. Melanin biopolymers from microbial world with future perspectives-a review. Arch Microbiol 2023; 205:306. [PMID: 37580645 DOI: 10.1007/s00203-023-03642-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/16/2023]
Abstract
Melanin is an amorphous polymer made of heterogeneous functional groups synthesized by diverse organisms including fungi, bacteria, animals, and plants. It was widely acknowledged for its biological processes and its key role in the protection of organisms from environmental stress. Recently, melanin clutches attention in the field of nanobiotechnology, drug delivery, organic semiconductors and bioelectronics, environmental bioremediation, photoprotection, etc., Furthermore, melanin from natural sources like microbial community shows antimicrobial, fighting cancer, radical scavenging, cosmeceuticals, and many therapeutic areas as well. Though the multipotentiality nature of melanin has been put forth, real-world applications still flag fall behind, which might be anticipated to the inadequate and high price essence of natural melanin. However, current bioprocess technologies have paved for the large-scale or industrial production of microbial melanin, which could help in the replacement of synthetic melanin. Thus, this review emphasizes the various sources for melanin, i.e., types-based on its pathways and its chemical structures, functional efficiency, physical properties, and conventional and modern methods of both extraction and characterization. Moreover, an outlook on how it works in the field of medicine, bioremediation, and other related areas provides perspectives on the complete exploitation of melanin in practical applications of medicine and the environment.
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Affiliation(s)
| | - Shri Ranjani Subiramanian
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Divyavaahini Thyagarajan
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Nazneen Bobby Mohammed
- Department of Biotechnology, Vignan's Foundation for Science Technology and Research, Vadlamudi, Guntur Dist, Andhra Pradesh, India
| | | | - Mageswari Govindaraj
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | | | - Naresh Karthikeyan
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
| | - Charu Ramesh Kumar
- Department of Biotechnology, Sri Ramakrishna College of Arts & Science, Nava India, Coimbatore, India
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Liu C, Zou Q, Tang H, Liu J, Zhang S, Fan C, Zhang J, Liu R, Liu Y, Liu R, Zhao Y, Wu Q, Qi Z, Shen Y. Melanin nanoparticles alleviate sepsis-induced myocardial injury by suppressing ferroptosis and inflammation. Bioact Mater 2022; 24:313-321. [PMID: 36632502 PMCID: PMC9813528 DOI: 10.1016/j.bioactmat.2022.12.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Myocardial injury as one of the severe complications leads to the increasing morbidity and mortality in patients with sepsis. Recent studies reported that reactive oxygen species (ROS)-mediated ferroptosis plays a critical role in the development of heart diseases. Therefore, we hypothesized that anti-ferroptosis agent might be a novel potential therapeutic strategy for sepsis-induced cardiac injury. Herein, we demonstrated that a small biocompatible and MRI-visible melanin nanoparticles (MMPP) improves myocardial function by inhibiting ROS-related ferroptosis signaling pathway. In LPS-induced murine sepsis model, after a single dose intravenously injection of MMPP treatment, MMPP markedly alleviated the myocardial injury including cardiac function and heart structure disorder through suppressing iron-accumulation induced ferroptosis. In vitro, MMPP inhibited cardiomyocyte death by attenuating oxidative stress, inflammation and maintaining mitochondrial homeostasis. Collectively, our findings demonstrated that MMPP protected heart against sepsis-induced myocardial injury via inhibiting ferroptosis and inflammation, which might be a novel therapeutic approach in future.
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Affiliation(s)
- Chang Liu
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China,Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199, China
| | - Quan Zou
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Huixin Tang
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Jia Liu
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Shiqi Zhang
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Caihong Fan
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Junwei Zhang
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Ruiqing Liu
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Yashan Liu
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Ruiyan Liu
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Yan Zhao
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China
| | - Qiang Wu
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199, China
| | - Zhi Qi
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, 300071, China,Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, 300000, China,Xinjiang Production and Construction Corps Hospital, Xinjiang, 830092, China,Corresponding author. Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Yanna Shen
- School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China,Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, 571199, China,Corresponding author. School of Medical Technology, Tianjin Medical University, Tianjin, 300203, China.
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7
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Zhao X, Sun J, Dong J, Guo C, Cai W, Han J, Shen H, Lv S, Zhang R. An auto-photoacoustic melanin-based drug delivery nano-platform for self-monitoring of acute kidney injury therapy via a triple-collaborative strategy. Acta Biomater 2022; 147:327-341. [PMID: 35643195 DOI: 10.1016/j.actbio.2022.05.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/29/2022] [Accepted: 05/18/2022] [Indexed: 12/29/2022]
Abstract
Rhabdomyolysis-induced acute kidney injury (AKI) is closely related to toxic reactive oxygen species (ROS), apoptosis, and inflammation. Excessive activation of poly (ADP-ribose) polymerase-l (PARP-1) by ROS can cause mitochondrial dysfunction and release of the proapoptotic protein AIF, which triggers an intrinsic PARP-1-dependent cell death program. Considering these characteristics of rhabdomyolysis-induced AKI, we developed a targeting nanodrug delivery platform by loading PJ34 and coupling anti-GPR97 with melanin nanoparticles (GMP nanoparticles) that could realize photoacoustic self-monitoring and triple-collaborative treatment (antioxidant, antiapoptotic, and anti-inflammatory). The nanoparticles exhibited good dispersibility, solubility, and broad-spectrum ROS scavenging ability. In vitro experiments revealed high biocompatibility of the GMP nanoparticles and strong ability of scavenging multiple toxic ROS, antiapoptotic activity, and anti-inflammatory activity. Because melanin nanoparticles possess inherent photoacoustic (PA) imaging capability, they can not only serve as a drug carrier but also perform self-monitoring for real-time tracking of GMP biodistribution and renal uptake in a murine AKI model through PA imaging. In vivo experiments showed that the GMP nanoparticles could effectively reduce oxidative stress, apoptosis, and inflammatory response in mice with rhabdomyolysis-induced AKI, and the mechanism of alleviation was verified through western blot experiments. These results indicated that the nanoplatform could realize the targeted delivery and curative effect monitoring under the guidance of PA imaging, which is of great significance for the prevention and treatment of AKI. STATEMENT OF SIGNIFICANCE: : A targeting nanodrug delivery platform was developed by loading PJ34 and coupling anti-GPR97 with melanin nanoparticles (GMP nanoparticles) for photoacoustic self-monitoring and triple-collaborative treatment (antioxidant, antiapoptotic, and anti-inflammatory) of acute kidney injury (AKI). Further studies indicated that the Keap-1/Nrf2/HO-1 and PARP-1/AIF signaling pathways are involved in the therapeutic mechanisms to alleviate AKI. Immunohistochemical staining and routine blood test confirmed the anti-inflammatory performance of GMP nanoparticles. Compared to exogenous nanomaterials, we used endogenous melanin with broad ROS scavenging capacity as the nanocarrier and antioxidant, which not only overcomes the defects of high specificity, potential toxicity, low loading capacity, and high cost but also shows good biosafety and photoacoustic imaging performance in vivo.
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Zhou H, Zhang Q, Cheng Y, Xiang L, Shen G, Wu X, Cai H, Li D, Zhu H, Zhang R, Li L, Cheng Z. 64Cu-labeled melanin nanoparticles for PET/CT and radionuclide therapy of tumor. Nanomedicine 2020; 29:102248. [PMID: 32574686 DOI: 10.1016/j.nano.2020.102248] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
Abstract
Melanin is a group of natural pigments found in living organism. It can be used for positron emission tomography (PET) imaging due to its inherent chelating ability to radioactive cupric ion. This study was to prepare 64Cu-labeled PEGylated melanin nanoparticles (64Cu-PEG-MNPs), and to further take advantage of the enhanced permeability and retention (EPR) effect of radiolabeled nanoparticles to realize the integration of tumor diagnosis and treatment. We successfully synthesized PEG-MNPs. Saline and serum stability experiments demonstrated good stability. PET/CT showed high tumor aggregation. Moreover, 64Cu-PEG-MNPs resulted in a therapeutic effect on the A431 tumor-bearing mice in the treatment group. The pathological results further confirmed that the therapeutic doses of 64Cu-PEG-MNPs cause pathological changes of tumor tissues while showing minimal toxicity to normal tissues. Our data successfully demonstrate the good imaging performance of 64Cu-PEG-MNPs on A431 tumors and further proved its therapeutic effect, highlighting a great potential in targeted radionuclide therapy.
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Affiliation(s)
- Huijun Zhou
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Qing Zhang
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University School of Medicine, Stanford, CA, USA; Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Yan Cheng
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Lili Xiang
- Department of Gastrointestinal Surgery, West China Forth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guohua Shen
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoai Wu
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Huawei Cai
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Daifeng Li
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University School of Medicine, Stanford, CA, USA; Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hua Zhu
- Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, Beijing, China
| | - Ruiping Zhang
- The Affiliated Shanxi Bethune Hospital of Shanxi Medical University; The Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, China.
| | - Lin Li
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Zhen Cheng
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Bio-X Program, Stanford University School of Medicine, Stanford, CA, USA.
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9
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Maher S, Mahmoud M, Rizk M, Kalil H. Synthetic melanin nanoparticles as peroxynitrite scavengers, photothermal anticancer and heavy metals removal platforms. Environ Sci Pollut Res Int 2020; 27:19115-19126. [PMID: 30982188 DOI: 10.1007/s11356-019-05111-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Melanin is a ubiquitous natural polyphenolic pigment with versatile applications including physiological functions. This polymeric material is found in a diversity of living organisms from bacteria to mammals. The biocompatibility and thermal stability of melanin nanoparticles make them good candidates to work as free radical scavengers and photothermal anticancer substrates. Research studies have identified melanin as an antioxidative therapeutic agent and/or reactive oxygen species (ROS) scavenger that includes neutralization of peroxynitrite. In addition, melanin nanoparticles have emerged as an anticancer photothermal platform that has the capability to kill cancer cells. Recently, melanin nanoparticles have been successfully used as chelating agents to purify water from heavy metals, such as hexavalent chromium. This review article highlights some selected aspects of cutting-edge melanin applications. Herein, we will refer to the recent literature that addresses melanin nanoparticles and its useful physicochemical properties as a hot topic in biomaterial science. It is expected that the techniques of Dynamic Light Scattering (DLS), Scanning Electron Microscopy (SEM), and time-resolved Electron Paramagnetic Resonance (EPR) will have a strong impact on the full characterization of melanin nanoparticles and the subsequent exploration of their physiological and chemical mechanisms.
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Affiliation(s)
- Shaimaa Maher
- Department of Chemistry, College of Science, Cleveland State University, Cleveland, OH, 44115, USA
| | - Marwa Mahmoud
- Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt
| | - Moustafa Rizk
- Department of Chemistry, Faculty of Science and Arts, Najran University, Sharourah, Najran, Saudi Arabia
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Haitham Kalil
- Department of Chemistry, College of Science, Cleveland State University, Cleveland, OH, 44115, USA.
- Department of Chemistry, Faculty of Science, Suez Canal University, Ismailia, Egypt.
- Department of Chemistry and Biochemistry, University of Mount Union, Alliance, OH, 44601, USA.
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10
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Roy S, Rhim JW. Preparation of carrageenan-based functional nanocomposite films incorporated with melanin nanoparticles. Colloids Surf B Biointerfaces 2019; 176:317-324. [PMID: 30641303 DOI: 10.1016/j.colsurfb.2019.01.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/12/2018] [Accepted: 01/08/2019] [Indexed: 11/16/2022]
Abstract
Melanin nanoparticles (MNP) were isolated from sepia ink, spherical and range in size from 40 to 160 nm. Carrageenan-based nanocomposite films with different concentration of MNP (0, 0.25, 0.5, 1.0, and 2.0 wt%) were prepared and their physical, thermal and UV-barrier properties were evaluated. Field emission scanning electron (FE-SEM) micrographs showed well-dispersed MNPs in the carrageenan matrix. The addition of MNP completely shielded the UV light and also affected the apparent color and transparency of the nanocomposite film. The addition of up to 1.0% by weight of MNP significantly increased the mechanical strength of the carrageenan film. The heat resistance of the carrageenan film also increased by mixing with MNP. Incorporation of MNP also reduce the water barrier property and increase the hydrophobicity of the carrageenan film. Also, the MNP-incorporated carrageenan nanocomposite films showed strong antioxidant activity with some antimicrobial activity against foodborne pathogenic bacteria, L. monocytogenes and E. coli.
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Affiliation(s)
- Swarup Roy
- Center for Humanities and Sciences, Bionanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jong-Whan Rhim
- Center for Humanities and Sciences, Bionanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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Moore C, Bai Y, Hariri A, Sanchez JB, Lin CY, Koka S, Sedghizadeh P, Chen C, Jokerst JV. Photoacoustic imaging for monitoring periodontal health: A first human study. Photoacoustics 2018; 12:67-74. [PMID: 30450281 PMCID: PMC6226559 DOI: 10.1016/j.pacs.2018.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 05/02/2023]
Abstract
The gold-standard periodontal probe is an aging tool that can detect periodontitis and monitor gingival health but is highly error-prone, does not fully characterize the periodontal pocket, and causes pain. Photoacoustic imaging is a noninvasive technique that can address these limitations. Here, a range of ultrasound frequencies between 16-40 MHz were used to image the periodontium and a contrast medium based on cuttlefish ink was used to label the pockets. A 40 MHz ultrasound frequency could spatially resolve the periodontal anatomy, including tooth, gum, gingival margin, and gingival thickness of tooth numbers 7-10 and 22-27. The photoacoustic-ultrasound measurements were more precise (0.01 mm) than those taken with physical probes by a dental hygienist. Furthermore, the full geometry of the pockets could be visualized with relative standard deviations of 10% (n = 5). This study shows the potential for non-invasive monitoring of periodontal health with photoacoustic-ultrasound imaging in the dental clinic.
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Affiliation(s)
- Colman Moore
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
| | - Yuting Bai
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
| | - Ali Hariri
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
| | - Joan B Sanchez
- Herman Ostrow School of Dentistry, University of Southern California, 925 West 34th Street, Los Angeles, CA, 90089, USA
| | - Ching-Yu Lin
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
| | - Sreenivas Koka
- School of Dentistry, University of California, Los Angeles, 714 Tiverton Ave, Los Angeles, CA, 90024, USA
- Koka Dental Clinic, 8031 Linda Vista Rd, San Diego, CA, 92111, USA
| | - Parish Sedghizadeh
- Herman Ostrow School of Dentistry, University of Southern California, 925 West 34th Street, Los Angeles, CA, 90089, USA
| | - Casey Chen
- Herman Ostrow School of Dentistry, University of Southern California, 925 West 34th Street, Los Angeles, CA, 90089, USA
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
- Materials Science Program, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
- Department of Radiology, University of California, San Diego, 9500 Gilman Drive. La Jolla, CA, 92092, USA
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