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Yan J, Siwakoti P, Shaw S, Bose S, Kokil G, Kumeria T. Porous silicon and silica carriers for delivery of peptide therapeutics. Drug Deliv Transl Res 2024:10.1007/s13346-024-01609-7. [PMID: 38819767 DOI: 10.1007/s13346-024-01609-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2024] [Indexed: 06/01/2024]
Abstract
Peptides have gained tremendous popularity as biological therapeutic agents in recent years due to their favourable specificity, diversity of targets, well-established screening methods, ease of production, and lower cost. However, their poor physiological and storage stability, pharmacokinetics, and fast clearance have limited their clinical translation. Novel nanocarrier-based strategies have shown promise in overcoming these issues. In this direction, porous silicon (pSi) and mesoporous silica nanoparticles (MSNs) have been widely explored as potential carriers for the delivery of peptide therapeutics. These materials possess several advantages, including large surface areas, tunable pore sizes, and adjustable pore architectures, which make them attractive carriers for peptide delivery systems. In this review, we cover pSi and MSNs as drug carriers focusing on their use in peptide delivery. The review provides a brief overview of their fabrication, surface modification, and interesting properties that make them ideal peptide drug carriers. The review provides a systematic account of various studies that have utilised these unique porous carriers for peptide delivery describing significant in vitro and in vivo results. We have also provided a critical comparison of the two carriers in terms of their physicochemical properties and short-term and long-term biocompatibility. Lastly, we have concluded the review with our opinion of this field and identified key areas for future research for clinical translation of pSi and MSN-based peptide therapeutic formulations.
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Affiliation(s)
- Jiachen Yan
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Prakriti Siwakoti
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Siuli Shaw
- Centre for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, 201301, India
| | - Sudeep Bose
- Centre for Medical Biotechnology, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, 201301, India
- Amity Institute of Molecular Medicine and Stem Cell Research, Amity University, Noida, Uttar Pradesh, 201301, India
| | - Ganesh Kokil
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Tushar Kumeria
- School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
- Australian Centre for Nanomedicine, The University of New South Wales, Sydney, NSW, 2052, Australia.
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia.
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2
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Chary PS, Shaikh S, Rajana N, Bhavana V, Mehra NK. Unlocking nature's arsenal: Nanotechnology for targeted delivery of venom toxins in cancer therapy. BIOMATERIALS ADVANCES 2024; 162:213903. [PMID: 38824828 DOI: 10.1016/j.bioadv.2024.213903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/24/2024] [Accepted: 05/19/2024] [Indexed: 06/04/2024]
Abstract
AIM The aim of the present review is to shed light on the nanotechnological approaches adopted to overcome the shortcomings associated with the delivery of venom peptides which possess inherent anti-cancer properties. BACKGROUND Venom peptides although have been reported to demonstrate anti-cancer effects, they suffer from several disadvantages such as in vivo instability, off-target adverse effects, limited drug loading and low bioavailability. This review presents a comprehensive compilation of different classes of nanocarriers while underscoring their advantages, disadvantages and potential to carry such peptide molecules for in vivo delivery. It also discusses various nanotechnological aspects such as methods of fabrication, analytical tools to assess these nanoparticulate formulations, modulation of nanocarrier polymer properties to enhance loading capacity, stability and improve their suitability to carry toxic peptide drugs. CONCLUSION Nanotechnological approaches bear great potential in delivering venom peptide-based molecules as anticancer agents by enhancing their bioavailability, stability, efficacy as well as offering a spatiotemporal delivery approach. However, the challenges associated with toxicity and biocompatibility of nanocarriers must be duly addressed. PERSPECTIVES The everlasting quest for new breakthroughs for safer delivery of venom peptides in human subjects is fuelled by unmet clinical needs in the current landscape of chemotherapy. In addition, exhaustive efforts are required in obtaining and purifying the venom peptides followed by designing and optimizing scale up technologies.
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Affiliation(s)
- Padakanti Sandeep Chary
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Samia Shaikh
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Naveen Rajana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Valamla Bhavana
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Neelesh Kumar Mehra
- Pharmaceutical Nanotechnology Research Laboratory, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India.
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Zhao H, Li Y, Chen J, Zhang J, Yang Q, Cui J, Shi A, Wu J. Environmental stimulus-responsive mesoporous silica nanoparticles as anticancer drug delivery platforms. Colloids Surf B Biointerfaces 2024; 234:113758. [PMID: 38241892 DOI: 10.1016/j.colsurfb.2024.113758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/03/2024] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
Currently, cancer poses a significant health challenge in the medical community. Traditional chemotherapeutic agents are often accompanied by toxic side effects and limited therapeutic efficacy, restricting their application and advancement in cancer treatment. Therefore, there is an urgent need for developing intelligent drug release systems. Mesoporous silica nanoparticles (MSNs) have many advantages, such as a large specific surface area, substantial pore volume and size, adjustable mesoporous material pore size, excellent biocompatibility, and thermodynamic stability, making them ideal carriers for drug delivery and release. Additionally, they have been widely used to develop novel anticancer drug carriers. Recently, MSNs have been employed to design responsive systems that react to the tumor microenvironment and external stimuli for controlled release of anticancer drugs. This includes factors within the intratumor environment, such as pH, temperature, enzymes, and glutathione as well as external tumor stimuli, such as light, magnetic field, and ultrasound, among others. In this review, we discuss the research progress on environmental stimulus-responsive MSNs in anticancer drug delivery systems, including internal and external environment single stimulus-responsive release and combined stimulus-responsive release. We also summarize the current challenges associated with environmental stimulus-responsive MSNs and elucidate future directions, providing a reference for the functionalization modification and practical application of these MSNs.
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Affiliation(s)
- Huanhuan Zhao
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Yan Li
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650034, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Jiaxin Chen
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Jinjia Zhang
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Qiuqiong Yang
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Ji Cui
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China
| | - Anhua Shi
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China.
| | - Junzi Wu
- Department of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China; Department of Geriatrics, The First People's Hospital of Yunnan Province, Kunming, Yunnan 650034, China; Key Laboratory of Microcosmic Syndrome Differentiation, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, China.
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Shah S, Famta P, Bagasariya D, Charankumar K, Sikder A, Kashikar R, Kotha AK, Chougule MB, Khatri DK, Asthana A, Raghuvanshi RS, Singh SB, Srivastava S. Tuning Mesoporous Silica Nanoparticles in Novel Avenues of Cancer Therapy. Mol Pharm 2022; 19:4428-4452. [PMID: 36109099 DOI: 10.1021/acs.molpharmaceut.2c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The global menace of cancer has led to an increased death toll in recent years. The constant evolution of cancer therapeutics with novel delivery systems has paved the way for translation of innovative therapeutics from bench to bedside. This review explains the significance of mesoporous silica nanoparticles (MSNs) as delivery vehicles with particular emphasis on cancer therapy, including novel opportunities for biomimetic therapeutics and vaccine delivery. Parameters governing MSN synthesis, therapeutic agent loading characteristics, along with tuning of MSN toward cancer cell specificity have been explained. The advent of MSN in nanotheranostics and its potential in forming nanocomposites for imaging purposes have been illustrated. Additionally, various hurdles encountered during the bench to bedside translation have been explained along with potential avenues to circumvent them. This also opens up new horizons in drug delivery, which could be useful to researchers in the years to come.
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Affiliation(s)
- Saurabh Shah
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Paras Famta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Deepkumar Bagasariya
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Kondasingh Charankumar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Anupama Sikder
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Rama Kashikar
- Department of Pharmaceutical Sciences, Mercer University, Atlanta, Georgia 30341, United States
| | - Arun K Kotha
- Department of Pharmaceutical Sciences, Mercer University, Atlanta, Georgia 30341, United States
| | - Mahavir Bhupal Chougule
- Department of Pharmaceutical Sciences, Mercer University, Atlanta, Georgia 30341, United States
| | - Dharmendra Kumar Khatri
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Amit Asthana
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Rajeev Singh Raghuvanshi
- Indian Pharmacopoeia Commission, Ministry of Health & Family Welfare, Government of India, Raj Nagar, Ghaziabad 201002, India
| | - Shashi Bala Singh
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
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5
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Florensa M, Llenas M, Medina-Gutiérrez E, Sandoval S, Tobías-Rossell G. Key Parameters for the Rational Design, Synthesis, and Functionalization of Biocompatible Mesoporous Silica Nanoparticles. Pharmaceutics 2022; 14:pharmaceutics14122703. [PMID: 36559195 PMCID: PMC9788600 DOI: 10.3390/pharmaceutics14122703] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/11/2022] Open
Abstract
Over the last few years, research on silica nanoparticles has rapidly increased. Particularly on mesoporous silica nanoparticles (MSNs), as nanocarriers for the treatment of various diseases because of their physicochemical properties and biocompatibility. The use of MSNs combined with therapeutic agents can provide better encapsulation and effective delivery. MSNs as nanocarriers might also be a promising tool to lower the therapeutic dosage levels and thereby to reduce undesired side effects. Researchers have explored several routes to conjugate both imaging and therapeutic agents onto MSNs, thus expanding their potential as theranostic platforms, in order to allow for the early diagnosis and treatment of diseases. This review introduces a general overview of recent advances in the field of silica nanoparticles. In particular, the review tackles the fundamental aspects of silicate materials, including a historical presentation to new silicates and then focusing on the key parameters that govern the tailored synthesis of functional MSNs. Finally, the biomedical applications of MSNs are briefly revised, along with their biocompatibility, biodistribution and degradation. This review aims to provide the reader with the tools for a rational design of biocompatible MSNs for their application in the biomedical field. Particular attention is paid to the role that the synthesis conditions have on the physicochemical properties of the resulting MSNs, which, in turn, will determine their pharmacological behavior. Several recent examples are highlighted to stress the potential that MSNs hold as drug delivery systems, for biomedical imaging, as vaccine adjuvants and as theragnostic agents.
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Affiliation(s)
| | | | | | - Stefania Sandoval
- Correspondence: (S.S.); (G.T.-R.); Tel.: +34-(93)-5801853 (S.S. & G.T.-R.)
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6
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Muzzio N, Eduardo Martinez-Cartagena M, Romero G. Soft nano and microstructures for the photomodulation of cellular signaling and behavior. Adv Drug Deliv Rev 2022; 190:114554. [PMID: 36181993 DOI: 10.1016/j.addr.2022.114554] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/25/2022] [Accepted: 09/23/2022] [Indexed: 01/24/2023]
Abstract
Photoresponsive soft materials are everywhere in the nature, from human's retina tissues to plants, and have been the inspiration for engineers in the development of modern biomedical materials. Light as an external stimulus is particularly attractive because it is relatively cheap, noninvasive to superficial biological tissues, can be delivered contactless and offers high spatiotemporal control. In the biomedical field, soft materials that respond to long wavelength or that incorporate a photon upconversion mechanism are desired to overcome the limited UV-visible light penetration into biological tissues. Upon light exposure, photosensitive soft materials respond through mechanisms of isomerization, crosslinking or cleavage, hyperthermia, photoreactions, electrical current generation, among others. In this review, we discuss the most recent applications of photosensitive soft materials in the modulation of cellular behavior, for tissue engineering and regenerative medicine, in drug delivery and for phototherapies.
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Affiliation(s)
- Nicolas Muzzio
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
| | | | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
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7
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Li Y, Deng G, Hu X, Li C, Wang X, Zhu Q, Zheng K, Xiong W, Wu H. Recent advances in mesoporous silica nanoparticle-based targeted drug-delivery systems for cancer therapy. Nanomedicine (Lond) 2022; 17:1253-1279. [PMID: 36250937 DOI: 10.2217/nnm-2022-0023] [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] [Indexed: 02/08/2023] Open
Abstract
Targeted drug-delivery systems are a growing research topic in tumor treatment. In recent years, mesoporous silica nanoparticles (MSNs) have been extensively studied and applied in noninvasive and biocompatible drug-delivery systems for tumor therapy due to their outstanding advantages, which include high surface area, large pore volume, tunable pore size, easy surface modification and stable framework. The advances in the application of MSNs for anticancer drug targeting are covered and highlighted in this review, and the challenges and prospects of MSN-based targeted drug-delivery systems are discussed. This review provides new insights for researchers interested in targeted drug-delivery systems against cancer.
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Affiliation(s)
- Ying Li
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Guoxing Deng
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China.,School of Pharmacy, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Xianlong Hu
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Chenyang Li
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Xiaodong Wang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Qinchang Zhu
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Kai Zheng
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Wei Xiong
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Haiqiang Wu
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, People's Republic of China
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8
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Porrang S, Davaran S, Rahemi N, Allahyari S, Mostafavi E. How Advancing are Mesoporous Silica Nanoparticles? A Comprehensive Review of the Literature. Int J Nanomedicine 2022; 17:1803-1827. [PMID: 35498391 PMCID: PMC9043011 DOI: 10.2147/ijn.s353349] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/31/2022] [Indexed: 12/12/2022] Open
Abstract
The application of mesoporous silica nanoparticles (MSNs) is ubiquitous in various sciences. MSNs possess unique features, including the diversity in manufacturing by different synthesis methods and from different sources, structure controllability, pore design capabilities, pore size tunability, nanoparticle size distribution adjustment, and the ability to create diverse functional groups on their surface. These characteristics have led to various types of MSNs as a unique system for drug delivery. In this review, first, the synthesis of MSNs by different methods via using different sources were studied. Then, the parameters affecting their physicochemical properties and functionalization have been discussed. Finally, the last decade’s novel strategies, including surface functionalization, drug delivery, and cancer treatment, based on the MSNs in drug delivery and cancer therapy have been addressed.
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Affiliation(s)
- Sahar Porrang
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran
- Environmental Engineering Research Centre, Sahand University of Technology, Tabriz, Iran
| | - Soodabeh Davaran
- Department of Medical Nanotechnology, Faculty of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
- Research Centre for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nader Rahemi
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran
- Environmental Engineering Research Centre, Sahand University of Technology, Tabriz, Iran
- Nader Rahemi, Sahand University of Technology, Tabriz, Iran, Tel +98-41-33459100, Email
| | - Somaiyeh Allahyari
- Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran
- Environmental Engineering Research Centre, Sahand University of Technology, Tabriz, Iran
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Correspondence: Ebrahim Mostafavi, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA, Email ;
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Rai A, Ferrão R, Palma P, Patricio T, Parreira P, Anes E, Tonda-Turo C, Martins C, Alves N, Ferreira L. Antimicrobial peptide-based materials: opportunities and challenges. J Mater Chem B 2022; 10:2384-2429. [DOI: 10.1039/d1tb02617h] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The multifunctional properties of antimicrobial peptides (AMPs) make them attractive candidates for the treatment of various diseases. AMPs are considered alternatives to antibiotics due to the rising number of multidrug-resistant...
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10
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Gao X, Ding J, Liao C, Xu J, Liu X, Lu W. Defensins: The natural peptide antibiotic. Adv Drug Deliv Rev 2021; 179:114008. [PMID: 34673132 DOI: 10.1016/j.addr.2021.114008] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/28/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Defensins are a family of cationic antimicrobial peptides active against a broad range of infectious microbes including bacteria, viruses and fungi, playing important roles as innate effectors and immune modulators in immunological control of microbial infection. Their antibacterial properties and unique mechanisms of action have garnered considerable interest in developing defensins into a novel class of natural antibiotic peptides to fend off pathogenic infection by bacteria, particularly those resistant to conventional antibiotics. However, serious pharmacological and technical obstacles, some of which are unique to defensins and others are common to peptide drugs in general, have hindered the development and clinical translation of defensins as anti-infective therapeutics. To overcome them, several technologies have been developed, aiming for improved functionality, prolonged circulation time, enhanced proteolytic stability and bioavailability, and efficient and controlled delivery and release of defensins to the site of infection. Additional challenges include the alleviation of potential toxicity of defensins and their cost-effective manufacturing. In this review, we briefly introduce defensin biology, focus on various transforming strategies and practical techniques developed for defensins and their derivatives as antibacterial therapeutics, and conclude with a summation of future challenges and possible solutions.
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Cui T, Li S, Chen S, Liang Y, Sun H, Wang L. "Stealth" dendrimers with encapsulation of indocyanine green for photothermal and photodynamic therapy of cancer. Int J Pharm 2021; 600:120502. [PMID: 33746010 DOI: 10.1016/j.ijpharm.2021.120502] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/06/2021] [Accepted: 03/13/2021] [Indexed: 12/14/2022]
Abstract
Poly(amido amine) dendrimers and indocyanine green have inevitable interaction with proteins and cells, which induces biological toxicity and reduces therapeutic efficacy in vivo. To overcome these shortcomings, a new drug delivery system G5MEK7C(n)-ICG with a "stealth" layer was prepared. The surface of G5MEK7C(n)-ICG was modified with double-layer super hydrophilic zwitterionic materials. In the "stealth" double-layer structure, the outer layer was consisted of zwitterionic Glu-Lys-Glu-Lys-Glu-Lys-Cys (EK7) peptide, and the inner layer was composed of amino and carboxyl groups with a ratio of 1:1. DLS results showed that the average hydrodynamic size of G5MEK7C(n)-ICG was about 25-30 nm, and the zeta potential was proven to undergo a slight charge reversal with the increasing pH values of solutions. Furthermore, G5MEK7C(n)-ICG exhibited excellent biocompatibility to red blood cells and proteins resistance. Photothermal and photodynamic experiments demonstrated that G5MEK7C(n)-ICG had a good photothermal conversion effect and generated singlet oxygen (1O2) under laser irradiation. The MTT and hemolysis results showed that the toxicity of G5 PAMAM was significantly reduced after modification double-layer structure. Cytotoxicity studies and flow cytometry showed G5MEK7C(70)-ICG under laser irradiation had a good effect on killing A549 cells. More importantly, the tumor inhibition rate of mice treated with G5MEK7C(70)-ICG (under laser irradiation) was 78.2% in vivo, which was higher than that of mice treated with free ICG. Compared with free ICG, G5MEK7C(70)-ICG caused less damage to the liver according to the enzyme activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST). Therefore, dendrimers modified with a zwitterionic double layer will be a promising candidate as a drug delivery system.
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Affiliation(s)
- Tianming Cui
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Shukai Li
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Shengfu Chen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ying Liang
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Haotian Sun
- Ocean Nano Tech, LLC, San Diego, CA 92126, USA
| | - Longgang Wang
- Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-remediation in Water and Resource Reuse, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
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12
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Mochizuki C, Nakamura J, Nakamura M. Development of Non-Porous Silica Nanoparticles towards Cancer Photo-Theranostics. Biomedicines 2021; 9:73. [PMID: 33451074 PMCID: PMC7828543 DOI: 10.3390/biomedicines9010073] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/09/2021] [Indexed: 02/07/2023] Open
Abstract
Nanoparticles have demonstrated several advantages for biomedical applications, including for the development of multifunctional agents as innovative medicine. Silica nanoparticles hold a special position among the various types of functional nanoparticles, due to their unique structural and functional properties. The recent development of silica nanoparticles has led to a new trend in light-based nanomedicines. The application of light provides many advantages for in vivo imaging and therapy of certain diseases, including cancer. Mesoporous and non-porous silica nanoparticles have high potential for light-based nanomedicine. Each silica nanoparticle has a unique structure, which incorporates various functions to utilize optical properties. Such advantages enable silica nanoparticles to perform powerful and advanced optical imaging, from the in vivo level to the nano and micro levels, using not only visible light but also near-infrared light. Furthermore, applications such as photodynamic therapy, in which a lesion site is specifically irradiated with light to treat it, have also been advancing. Silica nanoparticles have shown the potential to play important roles in the integration of light-based diagnostics and therapeutics, termed "photo-theranostics". Here, we review the recent development and progress of non-porous silica nanoparticles toward cancer "photo-theranostics".
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Affiliation(s)
- Chihiro Mochizuki
- Department of Organ Anatomy & Nanomedicine, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan; (C.M.); (J.N.)
- Core Clusters for Research Initiatives of Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Junna Nakamura
- Department of Organ Anatomy & Nanomedicine, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan; (C.M.); (J.N.)
- Core Clusters for Research Initiatives of Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
| | - Michihiro Nakamura
- Department of Organ Anatomy & Nanomedicine, Graduate School of Medicine, Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan; (C.M.); (J.N.)
- Core Clusters for Research Initiatives of Yamaguchi University, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan
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