1
|
Alves PM, Barrias CC, Gomes P, Martins MCL. How can biomaterial-conjugated antimicrobial peptides fight bacteria and be protected from degradation? Acta Biomater 2024; 181:98-116. [PMID: 38697382 DOI: 10.1016/j.actbio.2024.04.043] [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: 01/12/2024] [Revised: 03/19/2024] [Accepted: 04/25/2024] [Indexed: 05/05/2024]
Abstract
The emergence of antibiotic-resistant bacteria is a serious threat to public health. Antimicrobial peptides (AMP) are a powerful alternative to antibiotics due to their low propensity to induce bacterial resistance. However, cytotoxicity and short half-lives have limited their clinical translation. To overcome these problems, AMP conjugation has gained relevance in the biomaterials field. Nevertheless, few studies describe the influence of conjugation on enzymatic protection, mechanism of action and antimicrobial efficacy. This review addresses this gap by providing a detailed comparison between conjugated and soluble AMP. Additionally, commonly employed chemical reactions and factors to consider when promoting AMP conjugation are reviewed. The overall results suggested that AMP conjugated onto biomaterials are specifically protected from degradation by trypsin and/or pepsin. However, sometimes, their antimicrobial efficacy was reduced. Due to limited conformational freedom in conjugated AMP, compared to their soluble forms, they appear to act initially by creating small protuberances on bacterial membranes that may lead to the alteration of membrane potential and/or formation of holes, triggering cell death. Overall, AMP conjugation onto biomaterials is a promising strategy to fight infection, particularly associated to the use of medical devices. Nonetheless, some details need to be addressed before conjugated AMP reach clinical practice. STATEMENT OF SIGNIFICANCE: Covalent conjugation of antimicrobial peptides (AMP) has been one of the most widely used strategies by bioengineers, in an attempt to not only protect AMP from proteolytic degradation, but also to prolong their residence time at the target tissue. However, an explanation for the mode of action of conjugated AMP is still lacking. This review extensively gathers works on AMP conjugation and puts forward a mechanism of action for AMP when conjugated onto biomaterials. The implications of AMP conjugation on antimicrobial activity, cytotoxicity and resistance to proteases are all discussed. A thorough review of commonly employed chemical reactions for this conjugation is also provided. Finally, details that need to be addressed for conjugated AMP to reach clinical practice are discussed.
Collapse
Affiliation(s)
- Pedro M Alves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - Cristina C Barrias
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Paula Gomes
- LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
| | - M Cristina L Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 4050-313 Porto, Portugal.
| |
Collapse
|
2
|
Selvaraj SP, Chen JY. Conjugation of antimicrobial peptides to enhance therapeutic efficacy. Eur J Med Chem 2023; 259:115680. [PMID: 37515922 DOI: 10.1016/j.ejmech.2023.115680] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/05/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
The growing prevalence of antimicrobial resistance (AMR) has brought with it a continual increase in the numbers of deaths from multidrug-resistant (MDR) infections. Since the current arsenal of antibiotics has become increasingly ineffective, there exists an urgent need for discovery and development of novel antimicrobials. Antimicrobial peptides (AMPs) are considered to be a promising class of molecules due to their broad-spectrum activities and low resistance rates compared with other types of antibiotics. Since AMPs also often play major roles in elevating the host immune response, the molecules may also be called "host defense peptides." Despite the great promise of AMPs, the majority remain unsuitable for clinical use due to issues of structural instability, degradation by proteases, and/or toxicity to host cells. Moreover, AMP activities in vivo can be influenced by many factors, such as interaction with blood and serum biomolecules, physiological salt concentrations or different pH values. To overcome these limitations, structural modifications can be made to the AMP. Among several modifications, physical and chemical conjugation of AMP to other biomolecules is widely considered an effective strategy. In this review, we discuss structural modification strategies related to conjugation of AMPs and their possible effects on mode of action. The conjugation of fatty acids, glycans, antibiotics, photosensitizers, polymers, nucleic acids, nanoparticles, and immobilization to biomaterials are highlighted.
Collapse
Affiliation(s)
- Sanjay Prasad Selvaraj
- Molecular and Biological Agricultural Science Program, Taiwan International Graduate Program, Academia Sinica, Taipei, 11529, Taiwan; Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Rd, Jiaushi, Ilan, 262, Taiwan; The iEGG and Animal Biotechnology Center and the Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.
| |
Collapse
|
3
|
Rai A, Seena S, Gagliardi T, Palma PJ. Advances in the design of amino acid and peptide synthesized gold nanoparticles for their applications. Adv Colloid Interface Sci 2023; 318:102951. [PMID: 37392665 DOI: 10.1016/j.cis.2023.102951] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/31/2023] [Accepted: 06/14/2023] [Indexed: 07/03/2023]
Abstract
The field of therapeutics and diagnostics is advanced by nanotechnology-based approaches including the spatial-temporal release of drugs, targeted delivery, enhanced accumulation of drugs, immunomodulation, antimicrobial action, and high-resolution bioimaging, sensors and detection. Various compositions of nanoparticles (NPs) have been developed for biomedical applications; however, gold NPs (Au NPs) have attracted tremendous attention due to their biocompatibility, easy surface functionalization and quantification. Amino acids and peptides have natural biological activities as such, their activities enhance several folds in combination with NPs. Although peptides are extensively used to produce various functionalities of Au NPs, amino acids have also gained similar interests in producing amino acid-capped Au NPs due to the availability of amine, carboxyl and thiol functional groups. Henceforth, a comprehensive review is needed to timely bridge the synthesis and the applications of amino acid and peptide-capped Au NPs. This review aims to describe the synthesis mechanism of Au NPs using amino acids and peptides along with their applications in antimicrobial, bio/chemo-sensors, bioimaging, cancer therapy, catalysis, and skin regeneration. Moreover, the mechanisms of various activities of amino acid and peptide capped-Au NPs are presented. We believe this review will motivate researchers to better understand the interactions and long-term activities of amino acid and peptide-capped Au NPs for their success in various applications.
Collapse
Affiliation(s)
- Akhilesh Rai
- CNC- Center for Neuroscience and Cell Biology and Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal.
| | - Sahadevan Seena
- MARE - Marine and Environmental Sciences Centre, ARNET-Aquatic Research Network, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | | | - Paulo J Palma
- Faculty of Medicine, University of Coimbra, Portugal
| |
Collapse
|
4
|
Bag N, Bardhan S, Roy S, Roy J, Mondal D, Guo B, Das S. Nanoparticle-mediated stimulus-responsive antibacterial therapy. Biomater Sci 2023; 11:1994-2019. [PMID: 36748318 DOI: 10.1039/d2bm01941h] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The limitations associated with conventional antibacterial therapies and the subsequent amplification of multidrug-resistant (MDR) microorganisms have increased, necessitating the urgent development of innovative antibacterial techniques. Accordingly, nanoparticle-mediated therapeutics have emerged as potential candidates for antibacterial treatment due to their suitable dimensions, penetration capacity, and high efficiency in targeted drug delivery. However, although nanoparticle-based drug delivery systems have been demonstrated to be effective, they are limited by their overuse and unwanted side effects. Thus, to overcome these drawbacks, stimulus-responsive antibiotic delivery has been extended as a promising strategy for site-specific restricted drug exemption. Nano-formulations that are triggered by various stimuli, such as intrinsic, extrinsic, and bacterial stimuli, have been developed. Thus, by harnessing the physicochemical properties of various nanoparticles, the selective release of therapeutic cargoes can be achieved through the application of a variety of local stimuli such as light, sound, irradiation, pH, and magnetic field. In this review, we also highlight the progress and perspectives of stimulus-responsive combination therapy, with special emphasis on the eradication of MDR strains and biofilms. Hence, this review addresses the advancement and challenges in the applications of stimulus-responsive nanoparticles together with the various future prospects of this technique.
Collapse
Affiliation(s)
- Neelanjana Bag
- Department of Physics, Jadavpur University, Kolkata-700032, India.
| | - Souravi Bardhan
- Department of Physics, Jadavpur University, Kolkata-700032, India. .,Department of Environmental Science, Netaji Nagar College for Women, Kolkata-700092, India
| | - Shubham Roy
- Department of Physics, Jadavpur University, Kolkata-700032, India. .,Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen-518055, China.
| | - Jhilik Roy
- Department of Physics, Jadavpur University, Kolkata-700032, India.
| | - Dhananjoy Mondal
- Department of Physics, Jadavpur University, Kolkata-700032, India.
| | - Bing Guo
- Shenzhen Key Laboratory of Flexible Printed Electronics Technology and School of Science, Harbin Institute of Technology, Shenzhen-518055, China.
| | - Sukhen Das
- Department of Physics, Jadavpur University, Kolkata-700032, India.
| |
Collapse
|
5
|
Seena S, Ferrão R, Pala M, Roelants SLKW, Soetaert W, Stevens CV, Ferreira L, Rai A. Acidic sophorolipid and antimicrobial peptide based formulation as antimicrobial and antibiofilm agents. BIOMATERIALS ADVANCES 2023; 146:213299. [PMID: 36706607 DOI: 10.1016/j.bioadv.2023.213299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/26/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
Antimicrobial peptides (AMPs) are considered promising candidates to treat various infections in soft tissues and skin. However, no effective treatment based on AMPs has been reached to clinics due to their instability in serum and wounds. Biosurfactants such as acidic sophorolipids (ASLs) of very high concentrations (equal or above 5 mg/mL) have been demonstrated to be antimicrobial agents, however these concentrations might induce cytotoxic effects to human cells. Here, we have demonstrated the synergistic antimicrobial effect of ASL nanoparticles (NPs) and LL37 peptides (below their minimum inhibitory concentrations; MICs) to eradicate Gram-positive and Gram-negative bacteria in human serum (HS) and in the presence of trypsin. The formulations containing ASL NPs (500 μg/mL) and LL37 peptides (15-25 μg/mL) effectively kill wide strains of bacteria in 5 % HS and the presence of trypsin. Moreover, the combination of ASL NPs (500 μg/mL) and LL37 peptides (15 μg/mL) prevents the formation of S. aureus biofilm and eradicates the one-day old biofilm. Importantly, the combination of ASL NPs and LL37 peptides severely damages the cell membrane of Escherichia coli (E. coli) as shown by atomic force microscopy (AFM). The combination of ASL NPs and LL37 peptides rapidly damages the outer (OM) and inner membrane (IM) of E. coli, while ASL NPs (1000 μg/mL) alone slowly compromise the integrity of the bacterial membrane. Importantly, the combination of ASL NPs and LL37 peptides is biocompatible to human keratinocyte cells (HaCaTs) and human umbilical vein endothelial cells (HUVECs), and induces the expression of anti-inflammatory cytokine in macrophages. Overall, ASL NPs in combination with LL37 peptides might be developed as an effective topical formulation to prevent bacterial infections in the skin.
Collapse
Affiliation(s)
- Sahadevan Seena
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Coimbra, Portugal; ARNET-Aquatic Research Network, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Rafaela Ferrão
- CNC - Centro de Neurociências e Biologia Celular, CIBB - Centro de Inovação em Biomedicina e Biotecnologia, Universidade de Coimbra, Coimbra, Portugal
| | - Melike Pala
- SynBioC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - S L K W Roelants
- InBio, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University and Bio Base Europe Pilot Plant, Ghent, Belgium
| | - Wim Soetaert
- InBio, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University and Bio Base Europe Pilot Plant, Ghent, Belgium
| | - Christian V Stevens
- SynBioC, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Lino Ferreira
- CNC - Centro de Neurociências e Biologia Celular, CIBB - Centro de Inovação em Biomedicina e Biotecnologia, Universidade de Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal
| | - Akhilesh Rai
- CNC - Centro de Neurociências e Biologia Celular, CIBB - Centro de Inovação em Biomedicina e Biotecnologia, Universidade de Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Portugal.
| |
Collapse
|
6
|
Huang D, Xu K, Huang X, Lin N, Ye Y, Lin S, Zhang J, Shao J, Chen S, Shi M, Zhou X, Lin P, Xue Y, Yu C, Yu X, Ye Z, Cheng K. Remotely Temporal Scheduled Macrophage Phenotypic Transition Enables Optimized Immunomodulatory Bone Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203680. [PMID: 36031402 DOI: 10.1002/smll.202203680] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Precise timing of macrophage polarization plays a pivotal role in immunomodulation of tissue regeneration, yet most studies mainly focus on M2 macrophages for their anti-inflammatory and regenerative effects while the essential proinflammatory role of the M1 phenotype on the early inflammation stage is largely underestimated. Herein, a superparamagnetic hydrogel capable of timely controlling macrophage polarization is constructed by grafting superparamagnetic nanoparticles on collagen nanofibers. The magnetic responsive hydrogel network enables efficient polarization of encapsulated macrophage to the M2 phenotype through the podosome/Rho/ROCK mechanical pathway in response to static magnetic field (MF) as needed. Taking advantage of remote accessibility of magnetic field together with the superparamagnetic hydrogels, a temporal engineered M1 to M2 transition course preserving the essential role of M1 at the early stage of tissue healing, as well as enhancing the prohealing effect of M2 at the middle/late stages is established via delayed MF switch. Such precise timing of macrophage polarization matching the regenerative process of injured tissue eventually leads to optimized immunomodulatory bone healing in vivo. Overall, this study offers a remotely time-scheduled approach for macrophage polarization, which enables precise manipulation of inflammation progression during tissue healing.
Collapse
Affiliation(s)
- Donghua Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kaicheng Xu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xin Huang
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Nong Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yuxiao Ye
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Suya Lin
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiamin Zhang
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiaqi Shao
- The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Songfeng Chen
- Department of Orthopedics, The First Affiliated Hospital Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Mingmin Shi
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xingzhi Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Peng Lin
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Yucheng Xue
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Chengcheng Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Xiaohua Yu
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Zhaoming Ye
- Department of Orthopedic Surgery, The Second Affiliated Hospital Zhejiang University School of Medicine, Orthopedics Research Institute of Zhejiang University, Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Clinical Research Center of Motor System Disease of Zhejiang Province, Hangzhou, Zhejiang Province, 310000, P. R. China
| | - Kui Cheng
- School of Material Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| |
Collapse
|
7
|
Mallick S, Nag M, Lahiri D, Pandit S, Sarkar T, Pati S, Nirmal NP, Edinur HA, Kari ZA, Ahmad Mohd Zain MR, Ray RR. Engineered Nanotechnology: An Effective Therapeutic Platform for the Chronic Cutaneous Wound. NANOMATERIALS 2022; 12:nano12050778. [PMID: 35269266 PMCID: PMC8911807 DOI: 10.3390/nano12050778] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/02/2022] [Accepted: 02/06/2022] [Indexed: 12/27/2022]
Abstract
The healing of chronic wound infections, especially cutaneous wounds, involves a complex cascade of events demanding mutual interaction between immunity and other natural host processes. Wound infections are caused by the consortia of microbial species that keep on proliferating and produce various types of virulence factors that cause the development of chronic infections. The mono- or polymicrobial nature of surface wound infections is best characterized by its ability to form biofilm that renders antimicrobial resistance to commonly administered drugs due to poor biofilm matrix permeability. With an increasing incidence of chronic wound biofilm infections, there is an urgent need for non-conventional antimicrobial approaches, such as developing nanomaterials that have intrinsic antimicrobial-antibiofilm properties modulating the biochemical or biophysical parameters in the wound microenvironment in order to cause disruption and removal of biofilms, such as designing nanomaterials as efficient drug-delivery vehicles carrying antibiotics, bioactive compounds, growth factor antioxidants or stem cells reaching the infection sites and having a distinct mechanism of action in comparison to antibiotics—functionalized nanoparticles (NPs) for better incursion through the biofilm matrix. NPs are thought to act by modulating the microbial colonization and biofilm formation in wounds due to their differential particle size, shape, surface charge and composition through alterations in bacterial cell membrane composition, as well as their conductivity, loss of respiratory activity, generation of reactive oxygen species (ROS), nitrosation of cysteines of proteins, lipid peroxidation, DNA unwinding and modulation of metabolic pathways. For the treatment of chronic wounds, extensive research is ongoing to explore a variety of nanoplatforms, including metallic and nonmetallic NPs, nanofibers and self-accumulating nanocarriers. As the use of the magnetic nanoparticle (MNP)-entrenched pre-designed hydrogel sheet (MPS) is found to enhance wound healing, the bio-nanocomposites consisting of bacterial cellulose and magnetic nanoparticles (magnetite) are now successfully used for the healing of chronic wounds. With the objective of precise targeting, some kinds of “intelligent” nanoparticles are constructed to react according to the required environment, which are later incorporated in the dressings, so that the wound can be treated with nano-impregnated dressing material in situ. For the effective healing of skin wounds, high-expressing, transiently modified stem cells, controlled by nano 3D architectures, have been developed to encourage angiogenesis and tissue regeneration. In order to overcome the challenge of time and dose constraints during drug administration, the approach of combinatorial nano therapy is adopted, whereby AI will help to exploit the full potential of nanomedicine to treat chronic wounds.
Collapse
Affiliation(s)
- Suhasini Mallick
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Nadia 741249, India;
| | - Moupriya Nag
- Department of Biotechnology, University of Engineering & Management, Kolkata 700156, India; (M.N.); (D.L.)
| | - Dibyajit Lahiri
- Department of Biotechnology, University of Engineering & Management, Kolkata 700156, India; (M.N.); (D.L.)
| | - Soumya Pandit
- Department of Life Sciences, Sharda University, Noida 201310, India;
| | - Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, Government of West Bengal, Malda 732102, India;
| | - Siddhartha Pati
- NatNov Bioscience Private Limited, Balasore 756001, India;
- Skills Innovation & Academic Network (SIAN) Institute, Association for Biodiversity Conservation & Research (ABC), Balasore 756001, India
| | - Nilesh Prakash Nirmal
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom 73170, Thailand;
| | - Hisham Atan Edinur
- School of Health Sciences, Health Campus, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia;
| | - Zulhisyam Abdul Kari
- Department of Agricultural Science, Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli 17600, Malaysia
- Correspondence: (Z.A.K.); (M.R.A.M.Z.); (R.R.R.)
| | - Muhammad Rajaei Ahmad Mohd Zain
- Department of Orthopaedics, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia
- Correspondence: (Z.A.K.); (M.R.A.M.Z.); (R.R.R.)
| | - Rina Rani Ray
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Nadia 741249, India;
- Correspondence: (Z.A.K.); (M.R.A.M.Z.); (R.R.R.)
| |
Collapse
|
8
|
Wang A, Zheng Y, Zhu W, Yang L, Yang Y, Peng J. Melittin-Based Nano-Delivery Systems for Cancer Therapy. Biomolecules 2022; 12:biom12010118. [PMID: 35053266 PMCID: PMC8773652 DOI: 10.3390/biom12010118] [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: 11/25/2021] [Revised: 01/01/2022] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Melittin (MEL) is a 26-amino acid polypeptide with a variety of pharmacological and toxicological effects, which include strong surface activity on cell lipid membranes, hemolytic activity, and potential anti-tumor properties. However, the clinical application of melittin is restricted due to its severe hemolytic activity. Different nanocarrier systems have been developed to achieve stable loading, side effects shielding, and tumor-targeted delivery, such as liposomes, cationic polymers, lipodisks, etc. In addition, MEL can be modified on nano drugs as a non-selective cytolytic peptide to enhance cellular uptake and endosomal/lysosomal escape. In this review, we discuss recent advances in MEL’s nano-delivery systems and MEL-modified nano drug carriers for cancer therapy.
Collapse
|
9
|
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...
Collapse
|
10
|
Subramaniam S, Joyce P, Thomas N, Prestidge CA. Bioinspired drug delivery strategies for repurposing conventional antibiotics against intracellular infections. Adv Drug Deliv Rev 2021; 177:113948. [PMID: 34464665 DOI: 10.1016/j.addr.2021.113948] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/04/2021] [Accepted: 08/23/2021] [Indexed: 12/11/2022]
Abstract
Bacteria have developed a wealth of strategies to avoid and resist the action of antibiotics, one of which involves pathogens invading and forming reservoirs within host cells. Due to the poor cell membrane permeability, stability and retention of conventional antibiotics, this renders current treatments largely ineffective, since achieving a therapeutically relevant antibiotic concentration at the site of intracellular infection is not possible. To overcome such challenges, current antibiotics are 'repurposed' via reformulation using micro- or nano-carrier systems that effectively encapsulate and deliver therapeutics across cellular membranes of infected cells. Bioinspired materials that imitate the uptake of biological particulates and release antibiotics in response to natural stimuli are recently explored to improve the targeting and specificity of this 'nanoantibiotic' approach. In this review, the mechanisms of internalization and survival of intracellular bacteria are elucidated, effectively accentuating the current treatment challenges for intracellular infections and the implications for repurposing conventional antibiotics. Key case studies of nanoantibiotics that have drawn inspiration from natural biological particles and cellular uptake pathways to effectively eradicate intracellular pathogens are detailed, clearly highlighting the rational for harnessing bioinspired drug delivery strategies.
Collapse
Affiliation(s)
- Santhni Subramaniam
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia
| | - Paul Joyce
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia
| | - Nicky Thomas
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia; The Basil Hetzel Institute for Translational Health Research, Woodville, SA 5011, Australia
| | - Clive A Prestidge
- University of South Australia, UniSA Clinical and Health Sciences, SA 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide, SA 5000, Australia.
| |
Collapse
|
11
|
Gera S, Kankuri E, Kogermann K. Antimicrobial peptides - Unleashing their therapeutic potential using nanotechnology. Pharmacol Ther 2021; 232:107990. [PMID: 34592202 DOI: 10.1016/j.pharmthera.2021.107990] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023]
Abstract
Antimicrobial peptides (AMPs) are potent, mostly cationic, and amphiphilic broad-spectrum host defense antimicrobials that are produced by all organisms ranging from prokaryotes to humans. In addition to their antimicrobial actions, they modulate inflammatory and immune responses and promote wound healing. Although they have clear benefits over traditional antibiotic drugs, their wide therapeutic utilization is compromised by concerns of toxicity, stability, and production costs. Recent advances in nanotechnology have attracted increasing interest to unleash the AMPs' immense potential as broad-spectrum antibiotics and anti-biofilm agents, against which the bacteria have less chances to develop resistance. Topical application of AMPs promotes migration of keratinocytes and fibroblasts, and contributes significantly to an accelerated wound healing process. Delivery of AMPs by employing nanotechnological approaches avoids the major disadvantages of AMPs, such as instability and toxicity, and provides a controlled delivery profile together with prolonged activity. In this review, we provide an overview of the key properties of AMPs and discuss the latest developments in topical AMP therapy using nanocarriers. We use chronic hard-to-heal wounds-complicated by infections, inflammation, and stagnated healing-as an example of an unmet medical need for which the AMPs' wide range of therapeutic actions could provide the most potential benefit. The use of innovative materials and sophisticated nanotechnological approaches offering various possibilities are discussed in more depth.
Collapse
Affiliation(s)
- Sonia Gera
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland.
| | - Karin Kogermann
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| |
Collapse
|
12
|
Karamat-Ullah N, Demidov Y, Schramm M, Grumme D, Auer J, Bohr C, Brachvogel B, Maleki H. 3D Printing of Antibacterial, Biocompatible, and Biomimetic Hybrid Aerogel-Based Scaffolds with Hierarchical Porosities via Integrating Antibacterial Peptide-Modified Silk Fibroin with Silica Nanostructure. ACS Biomater Sci Eng 2021; 7:4545-4556. [PMID: 34415718 DOI: 10.1021/acsbiomaterials.1c00483] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Scaffold-mediated tissue engineering has become a golden solution for the regeneration of damaged bone tissues that lack self-regeneration capability. A successful scaffold in bone tissue engineering comprises a multitude of suitable biological, microarchitectural, and mechanical properties acting as different signaling cues for the cells to mediate the new tissue formation. Therefore, careful design of bioactive scaffold macro- and microstructures in multiple length scales and biophysical properties fulfilling the tissue repair demands are necessary yet challenging to achieve. Herein, we have developed an antibacterial and biocompatible silica-silk fibroin (SF) gel-based ink through novel yet simple chemical approaches of sol-gel and self-assembly followed by processing the obtained gels as three-dimensional (3D) hybrid aerogel-based scaffolds exploiting the advanced materials design approaches of micro-extrusion-based 3D printing, and directional freeze-casting/drying approaches. As the main constituent of the hybrid biocompatible scaffold of this study, we used the SF extracted from Bombyx mori silkworm cocoon. However, to increase the cell responsivity and bactericidal efficiency of the final scaffold, thiol-ended antimicrobial and cell adhesive peptide sequence (SH-CM-RGD) was conjugated to silica-SF hybrid gels via covalent attachment using a spacer molecule through either preprint (prior to sol-gel) or during the post-printing steps on the previously printed silica-SF gel. In the next step, the hybrid Silica-SF-CM-RGD hydrogel ink was 3D-printed into the construct with interconnected porous structure with hierarchically organized porosity and a combination of several promising properties. Namely, due to the covalent linkage of the antibacterial peptide to the SF, the scaffold shows potent bactericidal efficiency toward Gram-positive and Gram-negative bacteria. Moreover, nanostructured silica components in the 3D-printed composites could intertwine with SF-CM-RGD to support the mechanical properties in the final scaffold and the final osteoconductivity of the scaffold. This study supports the promising properties of 3D-printed silica-SF-based hybrid aerogels constructs for repairing bone defect.
Collapse
Affiliation(s)
- Nighat Karamat-Ullah
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| | - Yan Demidov
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| | - Michael Schramm
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany
| | - Daniela Grumme
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany
| | - Jaqueline Auer
- University of Applied Sciences Upper Austria, Stelzhamerstraße 23, 4600 Wels, Austria
| | - Christoph Bohr
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| | - Bent Brachvogel
- Experimental Neonatology, Department of Pediatrics and Adolescent Medicine, Center for Biochemistry, Medical Faculty, University of Cologne, 50923 Cologne, Germany
| | - Hajar Maleki
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, 50939 Cologne, Germany
| |
Collapse
|
13
|
Sarkar T, Chetia M, Chatterjee S. Antimicrobial Peptides and Proteins: From Nature's Reservoir to the Laboratory and Beyond. Front Chem 2021; 9:691532. [PMID: 34222199 PMCID: PMC8249576 DOI: 10.3389/fchem.2021.691532] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/27/2021] [Indexed: 11/13/2022] Open
Abstract
Rapid rise of antimicrobial resistance against conventional antimicrobials, resurgence of multidrug resistant microbes and the slowdown in the development of new classes of antimicrobials, necessitates the urgent development of alternate classes of therapeutic molecules. Antimicrobial peptides (AMPs) are small proteins present in different lifeforms in nature that provide defense against microbial infections. They have been effective components of the host defense system for a very long time. The fact that the development of resistance by the microbes against the AMPs is relatively slower or delayed compared to that against the conventional antibiotics, makes them prospective alternative therapeutics of the future. Several thousands of AMPs have been isolated from various natural sources like microorganisms, plants, insects, crustaceans, animals, humans, etc. to date. However, only a few of them have been translated commercially to the market so far. This is because of some inherent drawbacks of the naturally obtained AMPs like 1) short half-life owing to the susceptibility to protease degradation, 2) inactivity at physiological salt concentrations, 3) cytotoxicity to host cells, 4) lack of appropriate strategies for sustained and targeted delivery of the AMPs. This has led to a surge of interest in the development of synthetic AMPs which would retain or improve the antimicrobial potency along with circumventing the disadvantages of the natural analogs. The development of synthetic AMPs is inspired by natural designs and sequences and strengthened by the fusion with various synthetic elements. Generation of the synthetic designs are based on various strategies like sequence truncation, mutation, cyclization and introduction of unnatural amino acids and synthons. In this review, we have described some of the AMPs isolated from the vast repertoire of natural sources, and subsequently described the various synthetic designs that have been developed based on the templates of natural AMPs or from de novo design to make commercially viable therapeutics of the future. This review entails the journey of the AMPs from their natural sources to the laboratory.
Collapse
Affiliation(s)
| | | | - Sunanda Chatterjee
- Department of Chemistry, Indian Institute of Technology, Guwahati, India
| |
Collapse
|
14
|
Zhou Y, Wang Z, Peng Y, Wang F, Deng L. Gold Nanomaterials as a Promising Integrated Tool for Diagnosis and Treatment of Pathogenic Infections-A Review. J Biomed Nanotechnol 2021; 17:744-770. [PMID: 34082865 DOI: 10.1166/jbn.2021.3075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This review summarizes research on functionalized gold nanomaterials as pathogen detection sensors and pathogen elimination integrated tools. After presenting the challenge of current severe threat from pathogenic bacteria and the increasingly serious growth rate of drug resistance, the first section mainly introduces the conspectus of gold nanostructures from synthesis, characterization, physicochemical properties and applications of gold nanomaterials. The next section deals with gold nanomaterials-based pathogen detection sensors such as colorimetric sensors, fluorescence sensors and Surface-Enhanced Raman Scattering sensors. We then discuss strategies based on gold nanomaterials for eliminating pathogenic infections, such as the dual sterilization strategy for grafting gold nanomaterials with antibacterial substances, photothermal antibacterial and photodynamic antibacterial methods. The fourth part briefly introduces the comprehensive strategy for diagnosis and sterilization of pathogen infection based on gold nanomaterials, such as the diagnosis and treatment strategy for pathogen infection using Roman signals real-time monitoring and photothermal sterilization. A concluding section that summarizes the current status and challenges of the novel diagnosis and treatment integrated strategy for pathogenic infections, gives an outlook on potential future perspectives.
Collapse
Affiliation(s)
- Yan Zhou
- Department of Microbiology, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, China
| | - Zefeng Wang
- Department of Microbiology, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, China
| | - Yanling Peng
- Department of Microbiology, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, China
| | - Feiying Wang
- Department of Microbiology, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, China
| | - Le Deng
- Department of Microbiology, College of Life Science, Hunan Normal University, Changsha 410081, Hunan, China
| |
Collapse
|
15
|
Abstract
Currently, peptide-nanoparticle (NP) conjugates have been demonstrated to be efficient and powerful tools for the treatment and the diagnosis of various diseases as well as in the bioimaging application. Several bioconjugation strategies have been adopted to formulate the peptide-NP conjugates. In this review, we discuss the exciting applications of peptide-gold (Au) NP conjugates in the area of drug delivery, targeting, cancer therapy, brain diseases, vaccines, immune modulation, biosensor, colorimetric detection of heavy metals, and bio-labeling in vitro and in vivo models. Within this framework, various approaches such as radiotherapy, photothermal therapy, photodynamic therapy and chemo-photothermal therapy have been demonstrated for the treatment of several diseases. Moreover, we highlight how the morphology, size, density of peptide and the protein corona influence the biological activity, biodistribution and biological fate of peptide-AuNP conjugates. In the end, we discuss the future outlook and the challenges being faced in the clinical translation of the peptide-AuNP conjugates. Overall, this review emphasizes that the peptide-AuNP conjugates might be used as potential theranostic agents for the treatment of life-threatening diseases in an economical fashion in the future.
Collapse
Affiliation(s)
- Akhilesh Rai
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Lino Ferreira
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| |
Collapse
|
16
|
Mohid SA, Bhunia A. Combining Antimicrobial Peptides with Nanotechnology: An Emerging Field in Theranostics. Curr Protein Pept Sci 2021; 21:413-428. [PMID: 31889488 DOI: 10.2174/1389203721666191231111634] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/11/2019] [Accepted: 10/18/2019] [Indexed: 12/12/2022]
Abstract
The emergence of multidrug-resistant pathogens and their rapid adaptation against new antibiotics is a major challenge for scientists and medical professionals. Different approaches have been taken to combat this problem, which includes rationally designed potent antimicrobial peptides (AMPs) and several nanoparticles and quantum dots. AMPs are considered as a new generation of super antibiotics that hold enormous potential to fight against bacterial resistance by the rapidly killing planktonic as well as their biofilm form while keeping low toxicity profile against eukaryotic cells. Various nanoparticles and quantum dots have proved their effectiveness against a vast array of infections and diseases. Conjugation and functionalization of nanoparticles with potentially active antimicrobial peptides have added advantages that widen their applications in the field of drug discovery as well as delivery system including imaging and diagnostics. This article reviews the current progress and implementation of different nanoparticles and quantum dots conjugated antimicrobial peptides in terms of bio-stability, drug delivery, and therapeutic applications.
Collapse
Affiliation(s)
- Sk Abdul Mohid
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| | - Anirban Bhunia
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII (M), Kolkata 700054, India
| |
Collapse
|
17
|
Ye Z, Kobe AC, Sang T, Aparicio C. Unraveling dominant surface physicochemistry to build antimicrobial peptide coatings with supramolecular amphiphiles. NANOSCALE 2020; 12:20767-20775. [PMID: 33030163 PMCID: PMC7581556 DOI: 10.1039/d0nr04526h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With the increasing threat from antibiotic-resistant bacteria, surface modification with antimicrobial peptides (AMP) has been promisingly explored for preventing bacterial infections. Little is known about the critical factors that govern AMP-surface interactions to obtain stable and active coatings. Here, we systematically monitored the adsorption of a designer amphipathic AMP, GL13K, on model surfaces. Self-assembly of the GL13K peptides formed supramolecular amphiphiles that highly adsorbed on negatively charged, polar hydroxyapatite-coated sensors. We further tuned surface charge and/or surface polarity with self-assembled monolayers (SAMs) on Au sensors and studied their interactions with adsorbed GL13K. We determined that the surface polarity of the SAM-coated sensors instead of their surface charge was the dominant factor governing AMP/substrate interactions via hydrogen bonding. Our findings will instruct the universal design of efficient self-assembled AMP coatings on biomaterials, biomedical devices and/or natural tissues.
Collapse
Affiliation(s)
- Zhou Ye
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
| | - Alexandra C Kobe
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
| | - Ting Sang
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA. and The Affiliated Stomatological Hospital of Nanchang University & The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi Province 330006, China
| | - Conrado Aparicio
- MDRCBB, Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA.
| |
Collapse
|
18
|
Chen H, Yin C, Zhang X, Zhu Y. Preparation and characterisation of bifunctional surface-modified silicone catheter in lumen. J Glob Antimicrob Resist 2020; 23:46-54. [PMID: 32795517 DOI: 10.1016/j.jgar.2020.07.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/08/2020] [Accepted: 07/20/2020] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES The purpose of this study was to evaluate the coating of antimicrobial peptides (AMPs) and polyvinylpyrrolidone (PVP) to the surface of a silicone catheter to reduce bacterial growth and to increase hydrophilicity, respectively. METHODS Surface characterisation was performed on bare silicone, AMP-coated, PVP-coated and AMP + PVP-coated silicone catheters using attenuated total reflectance-infrared (ATR-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and water contact angle. Antibacterial activity, antibacterial biofilm growth and XTT assay were performed on bare silicone, AMP-coated, PVP-coated and AMP + PVP-coated silicone catheters. Statistical analysis was performed by one-way ANOVA. RESULTS The water contact angle of the AMP + PVP-coated silicone catheter was 21.37 ± 2.17° compared with 107.23 ± 0.96°, 74.40 ± 1.76° and 20.77 ± 0.32° for bare silicone, AMP-coated and PVP-coated silicone catheters. Based on in vitro antimicrobial tests, the AMP + PVP-coated silicone catheter had 6.2, 2.2 and 2.5 greater antibacterial activity than that of the bare silicone catheter against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, respectively. Moreover, bacterial biofilm growth on the surface of the AMP + PVP-coated silicone catheter was minimal as characterised by scanning electron microscopy. MTT assay showed that bare silicone, AMP-coated, AMP + PVP-coated and PVP-coated silicone catheters were non-cytotoxic to 3T3 and human colon cancer (Caco-2) cells. CONCLUSIONS This work demonstrates that AMP + PVP-coated silicone catheters have potential clinical application prospects with improved hydrophilicity, excellent biocompatibility, antibacterial activity and a certain antibacterial biofilm effect.
Collapse
Affiliation(s)
- Haiyan Chen
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Caiyun Yin
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Xin Zhang
- College of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Yishen Zhu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China.
| |
Collapse
|
19
|
Drayton M, Kizhakkedathu JN, Straus SK. Towards Robust Delivery of Antimicrobial Peptides to Combat Bacterial Resistance. Molecules 2020; 25:molecules25133048. [PMID: 32635310 PMCID: PMC7412191 DOI: 10.3390/molecules25133048] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
Antimicrobial peptides (AMPs), otherwise known as host defence peptides (HDPs), are naturally occurring biomolecules expressed by a large array of species across the phylogenetic kingdoms. They have great potential to combat microbial infections by directly killing or inhibiting bacterial activity and/or by modulating the immune response of the host. Due to their multimodal properties, broad spectrum activity, and minimal resistance generation, these peptides have emerged as a promising response to the rapidly concerning problem of multidrug resistance (MDR). However, their therapeutic efficacy is limited by a number of factors, including rapid degradation, systemic toxicity, and low bioavailability. As such, many strategies have been developed to mitigate these limitations, such as peptide modification and delivery vehicle conjugation/encapsulation. Oftentimes, however, particularly in the case of the latter, this can hinder the activity of the parent AMP. Here, we review current delivery strategies used for AMP formulation, focusing on methodologies utilized for targeted infection site release of AMPs. This specificity unites the improved biocompatibility of the delivery vehicle with the unhindered activity of the free AMP, providing a promising means to effectively translate AMP therapy into clinical practice.
Collapse
Affiliation(s)
- Matthew Drayton
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
| | - Jayachandran N. Kizhakkedathu
- Department of Pathology and Laboratory Medicine, and Centre for Blood Research, University of British Columbia, 2350 Health Sciences Mall, Life Sciences Centre, Vancouver, BC V6T 1Z3, Canada;
| | - Suzana K. Straus
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada;
- Correspondence: ; Tel.: +1-604-822-2537
| |
Collapse
|
20
|
Ramírez-Acosta CM, Cifuentes J, Castellanos MC, Moreno RJ, Muñoz-Camargo C, Cruz JC, Reyes LH. PH-Responsive, Cell-Penetrating, Core/Shell Magnetite/Silver Nanoparticles for the Delivery of Plasmids: Preparation, Characterization, and Preliminary In Vitro Evaluation. Pharmaceutics 2020; 12:E561. [PMID: 32560390 PMCID: PMC7356180 DOI: 10.3390/pharmaceutics12060561] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/15/2022] Open
Abstract
Over the past decade, gene therapies have attracted much attention for the development of treatments for various conditions, including cancer, neurodegenerative diseases, protein deficiencies, and autoimmune disorders. Despite the benefits of this approach, several challenges are yet to be solved to reach clinical implementation. Some of these challenges include low transfection rates, limited stability under physiological conditions, and low specificity towards the target cells. An avenue to overcome such issues is to deliver the therapies with the aid of potent cell-penetrating vectors. Non-viral vectors, such as nanostructured materials, have been successfully tested in drug and gene delivery. Here, we propose the development and in vitro evaluation of a nanostructured cell-penetrating vehicle based on core/shell, magnetite/silver nanoparticles. A subsequent conjugation of a pH-responsive polymer was used to assure that the vehicle can carry and release circular DNA. Additionally, the translocating peptide Buforin II was conjugated with the aid of a polyether amine polymer to facilitate translocation and endosome escape. The obtained nanobioconjugates (magnetite/silver-pDMAEMA-PEA-BUFII) were characterized by UV-Vis spectrophotometry, dynamic light scattering (DLS), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope equipped with energy dispersive spectroscopy (SEM+EDS), and transmission electron microscopy (TEM). They were also encapsulated in lecithin liposomes to form magnetoliposomes. The cell viability of Vero cells in the presence of the nanobioconjugates was above 95% and declined to 80% for the magnetoliposomes. The hemolytic tendency of nanobioconjugates and magnetoliposomes was below 10%, while the platelet aggregation approached that of the negative control (i.e., 35%). Cytoplasm coverage values of about 50% for both Vero and neuroblastoma cells confirmed significant cell penetration. Pearson's correlation coefficients for both cell lines allowed us to estimate 20-40% colocalization of the nanobioconjugates with lysotracker green, which implied high levels of endosomal escape. The developed vehicles were also capable of loading around 16% of the added DNA and releasing such cargo with 8% efficiency. The developed nanoplatform holds a significant promise to enable highly efficient gene therapies as it overcomes some of the major issues associated with their eventual translation to the pre-clinical and clinical scale.
Collapse
Affiliation(s)
- Carlos M. Ramírez-Acosta
- Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical and Food Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (C.M.R.-A.); (R.J.M.)
| | - Javier Cifuentes
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (J.C.); (M.C.C.); (C.M.-C.)
| | - Maria Claudia Castellanos
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (J.C.); (M.C.C.); (C.M.-C.)
| | - Rodolfo José Moreno
- Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical and Food Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (C.M.R.-A.); (R.J.M.)
| | - Carolina Muñoz-Camargo
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (J.C.); (M.C.C.); (C.M.-C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (J.C.); (M.C.C.); (C.M.-C.)
| | - Luis H. Reyes
- Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical and Food Engineering, Universidad de los Andes, Bogotá 111711, Colombia; (C.M.R.-A.); (R.J.M.)
| |
Collapse
|
21
|
Active delivery of antimicrobial nanoparticles into microbial cells through surface functionalization strategies. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
22
|
Interplay between amphiphilic peptides and nanoparticles for selective membrane destabilization and antimicrobial effects. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
23
|
Makowski M, Silva ÍC, Pais do Amaral C, Gonçalves S, Santos NC. Advances in Lipid and Metal Nanoparticles for Antimicrobial Peptide Delivery. Pharmaceutics 2019; 11:E588. [PMID: 31717337 PMCID: PMC6920925 DOI: 10.3390/pharmaceutics11110588] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides (AMPs) have been described as excellent candidates to overcome antibiotic resistance. Frequently, AMPs exhibit a wide therapeutic window, with low cytotoxicity and broad-spectrum antimicrobial activity against a variety of pathogens. In addition, some AMPs are also able to modulate the immune response, decreasing potential harmful effects such as sepsis. Despite these benefits, only a few formulations have successfully reached clinics. A common flaw in the druggability of AMPs is their poor pharmacokinetics, common to several peptide drugs, as they may be degraded by a myriad of proteases inside the organism. The combination of AMPs with carrier nanoparticles to improve delivery may enhance their half-life, decreasing the dosage and thus, reducing production costs and eventual toxicity. Here, we present the most recent advances in lipid and metal nanodevices for AMP delivery, with a special focus on metal nanoparticles and liposome formulations.
Collapse
Affiliation(s)
| | | | | | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
| | - Nuno C. Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, 1649-028 Lisbon, Portugal; (M.M.); (Í.C.S.); (C.P.d.A.)
| |
Collapse
|
24
|
Abstract
Advances of nanotechnology led to the development of nanoparticulate systems with many advantages due to their unique physicochemical properties. The use of iron-oxide magnetic nanoparticles (IOMNPs) in pharmaceutical areas increased in the last few decades. This article reviews the conceptual information about iron oxides, magnetic nanoparticles, methods of IOMNP synthesis, properties useful for pharmaceutical applications, advantages and disadvantages, strategies for nanoparticle assemblies, and uses in the production of drug delivery, hyperthermia, theranostics, photodynamic therapy, and as an antimicrobial. The encapsulation, coating, or dispersion of IOMNPs with biocompatible material(s) can avoid the aggregation, biodegradation, and alterations from the original state and also enable entrapping the bioactive agent on the particle via adsorption or covalent attachment. IOMNPs show great potential for target drug delivery, improving the therapy as a consequence of a higher drug effect using lower concentrations, thus reducing side effects and toxicity. Different methodologies allow IOMNP synthesis, resulting in different structures, sizes, dispersions, and surface modifications. These advantages support their utilization in pharmaceutical applications, and getting suitable drug release control on the target tissues could be beneficial in several clinical situations, such as infections, inflammations, and cancer. However, more toxicological clinical investigations about IOMNPs are necessary.
Collapse
|
25
|
Li M, Wang S, Xu J, Xu S, Liu H. pH/Redox-Controlled Interaction between Lipid Membranes and Peptide Derivatives with a "Helmet". J Phys Chem B 2019; 123:6784-6791. [PMID: 31306021 DOI: 10.1021/acs.jpcb.9b05367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
How to reduce the cytotoxicity of antitumor peptides to normal cells remains an ongoing challenge. Here, we designed a pH/redox-responsive supramolecular structure (Pep-V⊂P-PEG) composed of a peptide modified with viologen (Pep-V) and polyethylene glycol bearing pillar[5]arene (P-PEG) as a "helmet". By shielding the hydrophobic moiety of the peptide derivative with pillar[5]arene via host-guest interactions, its disruption on normal cells can be effectively reduced. At acidic pH, the supramolecular structure can selectively adsorb onto negatively charged lipid membranes because of electrostatic interactions. Owing to redox responsiveness of the viologen group, Pep-V could be separated from P-PEG after the addition of reductants and inserted into lipid bilayers, which leads to membrane disruption. Cargo leakage of liposome models was investigated to understand Pep-V⊂P-PEG-induced liposomal membrane disruption under different pH values and redox conditions. Results showed that Pep-V⊂P-PEG caused almost no cargo leakage from (1,2-dipalmitoyl-sn-glycerol-3-phosphocholine) liposomes at pH 7.4 but significant leakage from negatively charged (1,2-dipalmitoyl-sn-glycerol-3-phospho-(1-rac-glyerol)) liposomes at pH 5.0 under a reducing environment. Pep-V⊂P-PEG displayed low destructive effects on mimic normal cells and significant disruption to mimic tumor cells when exposed to a reducing environment that is expected to be a potential antitumor agent.
Collapse
Affiliation(s)
- Mengya Li
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Sijia Wang
- College of Pharmacy , Henan University of Chinese Medicine , Zhengzhou 450046 , PR China
| | - Jun Xu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Shouhong Xu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Honglai Liu
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| |
Collapse
|
26
|
Borro BC, Malmsten M. Complexation between antimicrobial peptides and polyelectrolytes. Adv Colloid Interface Sci 2019; 270:251-260. [PMID: 31301601 DOI: 10.1016/j.cis.2019.07.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/02/2019] [Accepted: 07/02/2019] [Indexed: 12/18/2022]
Abstract
As a result of increasing bacterial resistance against antibiotics, we are facing an emerging health crisis, in which 'simple' infections may no longer be treatable. One class of molecules attracting interest in this context is antimicrobial peptides (AMPs), and considerable research efforts have been directed to identifying selective and potent AMPs. In addition, since in vivo delivery of AMPs is challenging, there is an emerging awareness that successful development of AMP therapeutics can be facilitated by careful design of AMPs delivery systems. In the present overview, we discuss polyelectrolyte complexation as a strategy to deliver AMPs. In doing so, key factors for AMP-polyelectrolyte complexation are illustrated for AMP-polyelectrolyte nanoparticle formation, as well as for AMP incorporation in polyelectrolyte microgels and multilayer structures, and consequences of these for functional performance exemplified.
Collapse
|
27
|
Li J, Wang H, Cui J, Shi Q, Zheng Z, Sun T, Huang Q, Fukuda T. Magnetic Micromachine Using Nickel Nanoparticles for Propelling and Releasing in Indirect Assembly of Cell-Laden Micromodules. MICROMACHINES 2019; 10:E370. [PMID: 31159427 PMCID: PMC6631220 DOI: 10.3390/mi10060370] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 12/16/2022]
Abstract
Magnetic micromachines as wireless end-effectors have been widely applied for drug discovery and regenerative medicine. Yet, the magnetic assembly of arbitrarily shaped cellular microstructures with high efficiency and flexibility still remains a big challenge. Here, a novel clamp-shape micromachine using magnetic nanoparticles was developed for the indirect untethered bioassembly. With a multi-layer template, the nickel nanoparticles were mixed with polydimethylsiloxane (PDMS) for mold replication of the micromachine with a high-resolution and permeability. To actuate the micromachine with a high flexibility and large scalable operation range, a multi-pole electromagnetic system was set up to generate a three-dimensional magnetic field in a large workspace. Through designing a series of flexible translations and rotations with a velocity of 15mm/s and 3 Hz, the micromachine realized the propel-and-throw strategy to overcome the inevitable adhesion during bioassembly. The hydrogel microstructures loaded with different types of cells or the bioactive materials were effectively assembled into microtissues with reconfigurable shape and composition. The results indicate that indirect magnetic manipulation can perform an efficient and versatile bioassembly of cellular micromodules, which is promising for drug trials and modular tissue engineering.
Collapse
Affiliation(s)
- Jianing Li
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Huaping Wang
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Juan Cui
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Qing Shi
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Zhiqiang Zheng
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Tao Sun
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Qiang Huang
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| | - Toshio Fukuda
- Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, China.
| |
Collapse
|
28
|
Albinali KE, Zagho MM, Deng Y, Elzatahry AA. A perspective on magnetic core-shell carriers for responsive and targeted drug delivery systems. Int J Nanomedicine 2019; 14:1707-1723. [PMID: 30880975 PMCID: PMC6408922 DOI: 10.2147/ijn.s193981] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Magnetic core-shell nanocarriers have been attracting growing interest owing to their physicochemical and structural properties. The main principles of magnetic nanoparticles (MNPs) are localized treatment and stability under the effect of external magnetic fields. Furthermore, these MNPs can be coated or functionalized to gain a responsive property to a specific trigger, such as pH, heat, or even enzymes. Current investigations have been focused on the employment of this concept in cancer therapies. The evaluation of magnetic core-shell materials includes their magnetization properties, toxicity, and efficacy in drug uptake and release. This review discusses some categories of magnetic core-shell drug carriers based on Fe2O3 and Fe3O4 as the core, and different shells such as poly(lactic-co-glycolic acid), poly(vinylpyrrolidone), chitosan, silica, calcium silicate, metal, and lipids. In addition, the review addresses their recent potential applications for cancer treatment.
Collapse
Affiliation(s)
- Kholoud E Albinali
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, Qatar,
| | - Moustafa M Zagho
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, Qatar,
| | - Yonghui Deng
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai, People's Republic of China
| | - Ahmed A Elzatahry
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, Qatar,
| |
Collapse
|
29
|
Kulkarni S, Jadhav M, Raikar P, Raikar S, Raikar U. Core–Shell Novel Composite Metal Nanoparticles for Hydrogenation and Dye Degradation Applications. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06094] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sameer Kulkarni
- SKE Society’s Govindram Seksaria Science College, Belgaum 590006, Karnataka, India
| | | | - Prasad Raikar
- Department of CAE, Centre for Post graduate studies, Visvesvaraya Technological University, Muddenahalli, Chikkaballapur 562101, Karnataka, India
| | | | | |
Collapse
|
30
|
Rodrigues GR, López-Abarrategui C, de la Serna Gómez I, Dias SC, Otero-González AJ, Franco OL. Antimicrobial magnetic nanoparticles based-therapies for controlling infectious diseases. Int J Pharm 2018; 555:356-367. [PMID: 30453018 DOI: 10.1016/j.ijpharm.2018.11.043] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 11/13/2018] [Accepted: 11/15/2018] [Indexed: 01/07/2023]
Abstract
In the last years, the antimicrobial resistance against antibiotics has become a serious health issue, arise as global threat. This has generated a search for new strategies in the progress of new antimicrobial therapies. In this context, different nanosystems with antimicrobial properties have been studied. Specifically, magnetic nanoparticles seem to be very attractive due to their relatively simple synthesis, intrinsic antimicrobial activity, low toxicity and high versatility. Iron oxide NPs (IONPs) was authorized by the World Health Organization for human used in biomedical applications such as in vivo drug delivery systems, magnetic guided therapy and contrast agent for magnetic resonance imaging have been widely documented. Furthermore, the antimicrobial activity of different magnetic nanoparticles has recently been demonstrated. This review elucidates the recent progress of IONPs in drug delivery systems and focuses on the treatment of infectious diseases and target the possible detrimental biological effects and associated safety issues.
Collapse
Affiliation(s)
- Gisele Regina Rodrigues
- Center for Biochemical and Proteomics Analyses, Catholic University of Brasilia, Brasilia, Brazil
| | | | - Inés de la Serna Gómez
- Center for Biochemical and Proteomics Analyses, Catholic University of Brasilia, Brasilia, Brazil
| | - Simoni Campos Dias
- Center for Biochemical and Proteomics Analyses, Catholic University of Brasilia, Brasilia, Brazil
| | | | - Octavio Luiz Franco
- Center for Biochemical and Proteomics Analyses, Catholic University of Brasilia, Brasilia, Brazil; S-Inova Biotech, Post-Graduate in Biotechnology, Catholic University Dom Bosco, Campo Grande, Brazil.
| |
Collapse
|
31
|
Wilson D, Materón EM, Ibáñez-Redín G, Faria RC, Correa DS, Oliveira ON. Electrical detection of pathogenic bacteria in food samples using information visualization methods with a sensor based on magnetic nanoparticles functionalized with antimicrobial peptides. Talanta 2018; 194:611-618. [PMID: 30609580 DOI: 10.1016/j.talanta.2018.10.089] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 01/27/2023]
Abstract
Outbreaks of foodborne diseases demand simple, rapid techniques for detecting pathogenic bacteria beyond the standard methods that are not applicable to routine analysis in the food industry and in the points of food consumption. In this work, we developed a sensitive, rapid and low-cost assay for detecting Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Salmonella typhimurium (S. typhi) in potable water and apple juice. The assay is based on electrical impedance spectroscopy measurements with screen-printed interdigitated electrodes coupled with magnetite nanoparticles functionalized with the antimicrobial peptide melittin (MLT). The data were analyzed with the information visualization methods Sammon's Mapping and Interactive Document Map to distinguish samples at two levels of contamination from food suitable for consumption. With this approach it has been possible to detect E. coli concentration down to 1 CFU mL-1 in potable water and 3.5 CFU mL-1 in apple juice without sample preparation, within only 25 min. This approach may serve as a low-cost, quick screening procedure to detect bacteria-related food poisoning, especially if the impedance data of several sensing units are combined.
Collapse
Affiliation(s)
- Deivy Wilson
- São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-carlense, 400, 13566-590 São Carlos, SP, Brazil; Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970 São Carlos, SP, Brazil.
| | - Elsa M Materón
- São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-carlense, 400, 13566-590 São Carlos, SP, Brazil; Department of Chemistry, Federal University of São Carlos, Rod Washington Luiz, km 235, 13565-970 São Carlos, SP, Brazil
| | - Gisela Ibáñez-Redín
- São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-carlense, 400, 13566-590 São Carlos, SP, Brazil
| | - Ronaldo C Faria
- Department of Chemistry, Federal University of São Carlos, Rod Washington Luiz, km 235, 13565-970 São Carlos, SP, Brazil
| | - Daniel S Correa
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, 13560-970 São Carlos, SP, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-carlense, 400, 13566-590 São Carlos, SP, Brazil.
| |
Collapse
|
32
|
Wang S, Yan C, Zhang X, Shi D, Chi L, Luo G, Deng J. Antimicrobial peptide modification enhances the gene delivery and bactericidal efficiency of gold nanoparticles for accelerating diabetic wound healing. Biomater Sci 2018; 6:2757-2772. [PMID: 30187036 DOI: 10.1039/c8bm00807h] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Impaired angiogenesis and bacterial infection have increasingly been implicated as the major causes of delayed diabetic wound healing. However, there is currently no effective therapy. Here, we optimized a novel gene delivery system based on antimicrobial peptide (LL37) grafted ultra-small gold nanoparticles (AuNPs@LL37, ∼7 nm) for the topical treatment of diabetic wounds with or without bacterial infection. AuNPs@LL37 combines the advantages of cationic AuNPs that condense DNA with those of antibacterial peptides, which are both highly antibacterial and essential for enhancing cellular and nucleus entry to achieve high gene delivery efficiency. AuNPs@LL37 combined with pro-angiogenic (VEGF) plasmids (AuNPs@LL37/pDNAs) significantly improved the gene transfection efficiency in keratinocytes compared with pristine AuNPs/pDNAs, and showed similar expression to Lipo2000/pDNAs (a well-known highly efficient gene transfection agent). Moreover, our therapeutic depot showed higher antibacterial ability than the free antimicrobial peptides and the cationic AuNPs alone in vitro and in vivo due to synergistic effects. Furthermore, the combined system promoted angiogenesis and inhibited bacterial infection in diabetic wounds, resulting in accelerated wound closure rates, faster re-epithelization, improved granulation tissue formation and high VEGF expression. Finally, our therapeutic depot was highly biocompatible in vitro and in vivo, suggesting its potential as a feasible way to treat chronic diabetic wounds.
Collapse
Affiliation(s)
- Song Wang
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | | | | | | | | | | | | |
Collapse
|
33
|
Li Y, Xu N, Zhu W, Wang L, Liu B, Zhang J, Xie Z, Liu W. Nanoscale Melittin@Zeolitic Imidazolate Frameworks for Enhanced Anticancer Activity and Mechanism Analysis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22974-22984. [PMID: 29920061 DOI: 10.1021/acsami.8b06125] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The cytolytic peptide melittin (MLT) is an important candidate of anticancer drug owing to its hemolytic properties. Nevertheless, its clinical applications are severely restricted as a result of its nonspecific toxicities like hemolysis. In this work, we reported MLT-loaded zeolitic imidazolate framework-8 (MLT@ZIF-8) nanoparticles (NPs). The formed MLT@ZIF-8 NPs not only possess excellent stability but also efficiently inhibit the hemolysis bioactivity of MLT. Confocal scanning imaging and cytotoxicity experiments revealed that as-synthesized MLT@ZIF-8 NPs exhibit enhanced cellular uptake and cytotoxicity toward cancer cells compared to MLT. The mechanism is well investigated by a series of transcriptome analysis, which indicates that MLT@ZIF-8 NPs can regulate the expression of 3383 genes, and the PI3K/Akt-regulated p53 pathway is involved in MLT@ZIF-8 NPs induced A549 cells apoptosis. Finally, MLT@ZIF-8 NPs exhibit enhanced antitumor activity than free MLT in vivo, while no obvious systemic toxicity has been found. This work emphasizes the great potential of utilizing MOF as a simple and efficient nanoplatform for deliverying cytolytic peptides in cancer treatment, and also the investigation on the antitumor mechanism could provide theoretical support for clinical usage of MLT.
Collapse
Affiliation(s)
- Yawei Li
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control , Institute of Military Veterinary Medicine, Academy of Military Medical Sciences , Changchun , 130122 , P. R. China
- Jilin Medical University , Jilin , 132013 , P. R. China
| | - Na Xu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control , Institute of Military Veterinary Medicine, Academy of Military Medical Sciences , Changchun , 130122 , P. R. China
- Jilin Medical University , Jilin , 132013 , P. R. China
| | - Wenhe Zhu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control , Institute of Military Veterinary Medicine, Academy of Military Medical Sciences , Changchun , 130122 , P. R. China
- Jilin Medical University , Jilin , 132013 , P. R. China
| | - Lei Wang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , 130022 , P. R. China
| | - Bin Liu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control , Institute of Military Veterinary Medicine, Academy of Military Medical Sciences , Changchun , 130122 , P. R. China
| | - Jianxu Zhang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , 130022 , P. R. China
| | - Zhigang Xie
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , 130022 , P. R. China
| | - Wensen Liu
- Key Laboratory of Jilin Province for Zoonosis Prevention and Control , Institute of Military Veterinary Medicine, Academy of Military Medical Sciences , Changchun , 130122 , P. R. China
| |
Collapse
|
34
|
Wang B, Wang F, Kong Y, Wu Z, Wang RM, Song P, He Y. Polyurea-crosslinked cationic acrylate copolymer for antibacterial coating. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
35
|
Lino MM, Simões S, Vilaça A, Antunes H, Zonari A, Ferreira L. Modulation of Angiogenic Activity by Light-Activatable miRNA-Loaded Nanocarriers. ACS NANO 2018; 12:5207-5220. [PMID: 29870221 DOI: 10.1021/acsnano.7b07538] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The combinatorial delivery of miRNAs holds great promise to modulate cell activity in the context of angiogenesis. Yet, the delivery of multiple miRNAs with spatiotemporal control remains elusive. Here, we report a plasmonic nanocarrier to control the release of two microRNAs. The nanocarrier consists of gold nanorods modified with single-stranded DNA for hybridization with complementary DNA-conjugated microRNAs. DNA strands with distinct melting temperatures enable the independent release of each microRNA with a near-infrared laser using the same wavelength but different powers. Tests in human outgrowth endothelial cells (OECs) indicate that this system can be used to silence different targets sequentially and, by doing so, to modulate cell activity with spatiotemporal resolution. Finally, using an in vivo acute wound healing animal model, it is demonstrated that the order by which each miRNA was released in transplanted OECs significantly impacted the wound healing kinetics.
Collapse
Affiliation(s)
- Miguel M Lino
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
- Faculty of Medicine , University of Coimbra , 3000-548 Coimbra , Portugal
| | - Susana Simões
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
| | - Andreia Vilaça
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
| | - Helena Antunes
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
- Faculty of Medicine , University of Coimbra , 3000-548 Coimbra , Portugal
- Crioestaminal , 3060-197 Cantanhede , Portugal
| | - Alessandra Zonari
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
| | - Lino Ferreira
- Center for Neuroscience and Cell Biology , University of Coimbra , 3004-517 Coimbra , Portugal
- Faculty of Medicine , University of Coimbra , 3000-548 Coimbra , Portugal
| |
Collapse
|
36
|
Lledos M, Mirabello V, Sarpaki S, Ge H, Smugowski HJ, Carroll L, Aboagye EO, Aigbirhio FI, Botchway SW, Dilworth JR, Calatayud DG, Plucinski PK, Price GJ, Pascu SI. Synthesis, Radiolabelling and In Vitro Imaging of Multifunctional Nanoceramics. CHEMNANOMAT : CHEMISTRY OF NANOMATERIALS FOR ENERGY, BIOLOGY AND MORE 2018; 4:361-372. [PMID: 29938196 PMCID: PMC5993288 DOI: 10.1002/cnma.201700378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 05/05/2023]
Abstract
Molecular imaging has become a powerful technique in preclinical and clinical research aiming towards the diagnosis of many diseases. In this work, we address the synthetic challenges in achieving lab-scale, batch-to-batch reproducible copper-64- and gallium-68-radiolabelled metal nanoparticles (MNPs) for cellular imaging purposes. Composite NPs incorporating magnetic iron oxide cores with luminescent quantum dots were simultaneously encapsulated within a thin silica shell, yielding water-dispersible, biocompatible and luminescent NPs. Scalable surface modification protocols to attach the radioisotopes 64Cu (t1/2=12.7 h) and 68Ga (t1/2=68 min) in high yields are reported, and are compatible with the time frame of radiolabelling. Confocal and fluorescence lifetime imaging studies confirm the uptake of the encapsulated imaging agents and their cytoplasmic localisation in prostate cancer (PC-3) cells. Cellular viability assays show that the biocompatibility of the system is improved when the fluorophores are encapsulated within a silica shell. The functional and biocompatible SiO2 matrix represents an ideal platform for the incorporation of 64Cu and 68Ga radioisotopes with high radiolabelling incorporation.
Collapse
Affiliation(s)
- Marina Lledos
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
| | | | - Sophia Sarpaki
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
| | - Haobo Ge
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
| | | | - Laurence Carroll
- Department of Surgery and Cancer, Faculty of Medicine, Commonwealth Building, Hammersmith CampusImperial College LondonDu Cane RoadLondonW12 0NNUK
| | - Eric O. Aboagye
- Department of Surgery and Cancer, Faculty of Medicine, Commonwealth Building, Hammersmith CampusImperial College LondonDu Cane RoadLondonW12 0NNUK
| | - Franklin I. Aigbirhio
- Wolfson Brain Imaging Centre, Department of Clinical NeurosciencesUniversity of CambridgeCambridgeUK
| | - Stanley W. Botchway
- Central Laser Facility, Rutherford Appleton LaboratoryResearch Complex at HarwellSTFC DidcotOX11 0QXUK
| | | | - David G. Calatayud
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
- Department of ElectroceramicsInstituto de Ceramica y Vidrio – CSICKelsen 5, Campus de Cantoblanco28049MadridSpain
| | - Pawel K. Plucinski
- Department of Chemical EngineeringUniversity of Bath, Claverton DownBA2 7AYBathUK
| | - Gareth J. Price
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
| | - Sofia I. Pascu
- Department of ChemistryUniversity of Bath, Claverton DownBA2 7AYBathUK
| |
Collapse
|
37
|
Kaur P, Thakur R, Malwal H, Manuja A, Chaudhury A. Biosynthesis of biocompatible and recyclable silver/iron and gold/iron core-shell nanoparticles for water purification technology. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.03.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
38
|
Zhang Y, Dong C, Yang S, Chiu TW, Wu J, Xiao K, Huang Y, Li X. Enhanced silver loaded antibacterial titanium implant coating with novel hierarchical effect. J Biomater Appl 2018; 32:1289-1299. [PMID: 29417864 DOI: 10.1177/0885328218755538] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, we present a novel strategy for hierarchical antibacterial implant coating by controlling structural and componential features as regulators of surface bactericidal property. Anodized titanium dioxide nanotubes and self-polymerized polydopamine were both used as preliminary antibacterial agents with a significant positive effect on surface bioactivity. At the same time, the storage capacity of nanotubes and the in situ reduction activity of polydopamine can introduce large amounts of strong attached silver nanoparticles for enhanced stable antibacterial performance. The surface morphology, chemical composition, and hydrophilicity had been thoroughly characterized. The sustained silver release performances were continuously monitored. The successively in vitro inhibition on Staphylococcus aureus growth of titanium dioxide nanotube, polydopamine layer and silver nanoparticles demonstrated the hierarchical antibacterial property of the final silver nanoparticles-incorporated polydopamine-modified titanium dioxide nanotube coating (silver/polydopamine/nanotube). Moreover, the bioactivity investigation indicated the vital role of polydopamine-modified titanium dioxide nanotube coating on preserving healthy osteoblast activity at the implant interface. The unique hierarchical coating for titanium implant may be a promising method to maximize antibacterial capacity and maintain good cellular activity at the same time.
Collapse
Affiliation(s)
- Yanxian Zhang
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| | - Chaofang Dong
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| | - Sefei Yang
- 2 Department of Stomatology, The PLA General Hospital, Beijing, China
| | - Te-Wei Chiu
- 3 Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Zhongxiao E. Rd., Taipei, Taiwan
| | - Junsheng Wu
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| | - Kui Xiao
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| | - Yunhua Huang
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| | - Xiaogang Li
- 1 Corrosion and Protection Center, Key Laboratory for Corrosion and Protection (MOE), 12507 University of Science and Technology, Beijing , China
| |
Collapse
|
39
|
Malekkhaiat Häffner S, Malmsten M. Membrane interactions and antimicrobial effects of inorganic nanoparticles. Adv Colloid Interface Sci 2017; 248:105-128. [PMID: 28807368 DOI: 10.1016/j.cis.2017.07.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 12/19/2022]
Abstract
Interactions between nanoparticles and biological membranes are attracting increasing attention in current nanomedicine, and play a key role both for nanotoxicology and for utilizing nanomaterials in diagnostics, drug delivery, functional biomaterials, as well as combinations of these, e.g., in theranostics. In addition, there is considerable current interest in the use of nanomaterials as antimicrobial agents, motivated by increasing resistance development against conventional antibiotics. Here, various nanomaterials offer opportunities for triggered functionalites to combat challenging infections. Although the performance in these diverse applications is governed by a complex interplay between the nanomaterial, the properties of included drugs (if any), and the biological system, nanoparticle-membrane interactions constitute a key initial step and play a key role for the subsequent biological response. In the present overview, the current understanding of inorganic nanomaterials as antimicrobial agents is outlined, with special focus on the interplay between antimicrobial effects and membrane interactions, and how membrane interactions and antimicrobial effects of such materials depend on nanoparticle properties, membrane composition, and external (e.g., light and magnetic) fields.
Collapse
Affiliation(s)
| | - Martin Malmsten
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark; Department of Pharmacy, Uppsala University, P.O. Box 580, SE-751 23 Uppsala, Sweden.
| |
Collapse
|
40
|
Zhang Z, Xing D, Zhao X, Han X. Controllable synthesis Fe 3O 4@POHABA core-shell nanostructure as high-performance recyclable bifunctional magnetic antimicrobial agent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:19011-19020. [PMID: 28660503 DOI: 10.1007/s11356-017-9535-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 06/13/2017] [Indexed: 06/07/2023]
Abstract
We demonstrated a method to form magnetic antimicrobial POHABA (poly-N,N'-[(4,5-dihydroxy-1,2-phenylene)bis(methylene)]bisacrylamide)-based core-shell nanostructure by free-radical polymerization of OHABA on the Fe3O4 core surface. The magnetic antimicrobial agent Fe3O4@POHABA can be used in domestic water treatment against bacterial pathogens. The thickness of POHABA shell could be controlled from 10.4 ± 1.2 to 56.3 ± 11.7 nm by the dosage of OHABA. The results of antimicrobial-activity test indicated that POHABA-based core-shell nanostructure had broad-spectrum inhibitory against Gram-negative, Gram-positive bacteria and fungi. The minimum inhibitory concentration (MIC) values of Fe3O4@POHABA nanostructure against Escherichia coli and Bacillus subtilis were both 0.4 mg/mL. Fe3O4@POHABA nanostructures responded to a permanent magnet and were easily recycled. Fe3O4@POHABA nanoparticles retained 100% antimicrobial efficiency for both Gram-negative and Gram-positive bacteria throughout eight recycle procedures.
Collapse
Affiliation(s)
- Zhijia Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin, 150001, China
| | - Defeng Xing
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin, 150001, China
| | - Xin Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin, 150001, China
| | - Xiaojun Han
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, 92 West Da-Zhi Street, Harbin, 150001, China.
| |
Collapse
|
41
|
Comune M, Rai A, Chereddy KK, Pinto S, Aday S, Ferreira AF, Zonari A, Blersch J, Cunha R, Rodrigues R, Lerma J, Simões PN, Préat V, Ferreira L. Antimicrobial peptide-gold nanoscale therapeutic formulation with high skin regenerative potential. J Control Release 2017; 262:58-71. [PMID: 28694030 DOI: 10.1016/j.jconrel.2017.07.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 07/01/2017] [Accepted: 07/06/2017] [Indexed: 10/19/2022]
Abstract
Chronic skin wounds affect ≈3% of persons aged >60years (Davies et al., 2007) [1]. These wounds are typically difficult to heal by conventional therapies and in many cases they get infected making even harder the regeneration process. The antimicrobial peptide (AMP) LL37 combines antimicrobial with pro-regenerative properties and thus represents a promising topical therapy to address both problems. Here, we investigated the wound healing potential of soluble and immobilized LL37 (LL37-conjugated gold nanoparticles, LL37-Au NPs), both in vitro (migration of keratinocytes) and in vivo (skin wound healing). Our results show that LL37-Au NPs, but not LL37 peptide, have the capacity to prolong the phosphorylation of EGFR and ERK1/2 and enhance the migratory properties of keratinocytes in a large in vitro wound model. We further report that both LL37 and LL37-Au NPs promote keratinocyte migration by the transactivation of EGFR, a process that seems to be initiated at the P2X7 receptor, as confirmed by chemical and genetic inhibition studies. Finally, we show in vivo that LL37-Au NPs have higher wound healing activity than LL37 peptide in a splinted mouse full thickness excisional model. Animal wounds treated by LL37-Au NPs have higher expression of collagen, IL6 and VEGF than the ones treated with LL37 peptide or NPs without LL37. Altogether, the conjugation of AMPs to NPs offers a promising platform to enhance their pro-regenerative properties.
Collapse
Affiliation(s)
- Michela Comune
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Akhilesh Rai
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Kiran K Chereddy
- Louvain Drug Research Institute, Pharmaceutics and Drug Delivery, Université Catholique de Louvain, Brussels, Belgium
| | - Sandra Pinto
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Sezin Aday
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - André F Ferreira
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Alessandra Zonari
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Josephine Blersch
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Rodrigo Cunha
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Ricardo Rodrigues
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal
| | - Juan Lerma
- Instituto de Neurociencias, Centro mixto de la Universidad Miguel Hernández de Elche y el Consejo Superior de Investigaciones Científicas, 03550 San Juan de Alicante, Spain
| | - Pedro N Simões
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Veronique Préat
- Louvain Drug Research Institute, Pharmaceutics and Drug Delivery, Université Catholique de Louvain, Brussels, Belgium
| | - Lino Ferreira
- CNC-Center for Neurosciences and Cell Biology, University of Coimbra, 3000 Coimbra, Portugal; Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal,.
| |
Collapse
|
42
|
Raeisi A, Faghihi K, Shabanian M. Designed biocompatible nano-inhibitor based on poly(β-cyclodextrin-ester) for reduction of the DEHP migration from plasticized PVC. Carbohydr Polym 2017; 174:858-868. [PMID: 28821141 DOI: 10.1016/j.carbpol.2017.06.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/29/2017] [Accepted: 06/27/2017] [Indexed: 10/19/2022]
Abstract
The easy migration of di(2-ethylhexyl) phthalate (DEHP) from the plasticized PVC (P-PVC) poses a serious threat to human health and the ecosystems. Thus, its control migration from the P-PVC products is very important. In this work, a poly(β-cyclodextrin-ester) network (β-CDP) was synthesized via reaction of β-cyclodextrin with 3,3',4,4'-benzophenone tetracarboxylic dianhydride. As a potential inhibitor for reduction of the DEHP migration, the β-CDP was grafted to Fe3O4 nanoparticles. Poly(β-cyclodextrin-ester) functionalized Fe3O4 nanoparticles (MNP-CDP) has been used in PVC/DEHP system as a reactive nano-inhibitor to reduce DEHP migration. Thermal stability and mechanical properties of obtained films were investigated. DEHP migration tests of the P-PVC films were also carried out by using Gas chromatography. It was found that by incorporating the small amounts of nano-inhibitor in PVC/DEHP system, the migration of DEHP effectively reduced from the P-PVC samples about 65% without any serious changes in mechanical and thermal properties of the P-PVC films.
Collapse
Affiliation(s)
- Ahmad Raeisi
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, 38156-8-8349, Arak, Iran; Institute of Nanosciences and Nanotechnology, Arak University, Arak, Iran
| | - Khalil Faghihi
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, 38156-8-8349, Arak, Iran; Institute of Nanosciences and Nanotechnology, Arak University, Arak, Iran.
| | - Meisam Shabanian
- Faculty of Chemistry and Petrochemical Engineering, Standard Research Institute (SRI), Karaj, P.O. Box 31745-139, Iran
| |
Collapse
|
43
|
Tsekoura EK, Helling AL, Wall JG, Bayon Y, Zeugolis DI. Battling bacterial infection with hexamethylene diisocyanate cross-linked and Cefaclor-loaded collagen scaffolds. Biomed Mater 2017. [DOI: 10.1088/1748-605x/aa6de0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
44
|
Solairaj D, Rameshthangam P, Muthukumaran P, Wilson J. Studies on electrochemical glucose sensing, antimicrobial activity and cytotoxicity of fabricated copper nanoparticle immobilized chitin nanostructure. Int J Biol Macromol 2017; 101:668-679. [PMID: 28363648 DOI: 10.1016/j.ijbiomac.2017.03.147] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 03/14/2017] [Accepted: 03/19/2017] [Indexed: 10/19/2022]
Abstract
In this study, copper nanoparticle immobilized chitin nanocomposite (CNP/CuNP) was synthesized and used for the development of non-enzymatic electrochemical sensor. The CNP/CuNP was characterized by X-ray diffraction (XRD), fourier transform infra red (FTIR) spectroscopy and high resolution transmission electron microscopy (HRTEM) analysis. The glucose sensing property of CNP/CuNP was investigated by cyclic voltammetry (CV) and chronoamperometry (CA). As a result of the synergistic effect of CNP and CuNP, the modified electrode displayed effective electro-oxidation of glucose in 0.1M NaOH solution. At 0.45V potential the modified electrode showed response towards glucose in the linear range of 1-1000μM with a lowest detection limit of 0.776μM with better selectivity and stability. In addition, the antimicrobial activity of CNP/CuNP was evaluated against bacterial and fungal strains. CNP/CuNP displayed enhanced antimicrobial activity when compared to CNP and CuNP alone. Similarly, cytotoxicity of CNP/CuNP was tested against Artemia salina, which showed no toxic effect in the tested concentration.
Collapse
Affiliation(s)
- Dhanasekaran Solairaj
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Palanivel Rameshthangam
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630003, Tamil Nadu, India.
| | - Palanisamy Muthukumaran
- Department of Bioelectronics and Biosensors, Science Campus, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Jeyaraj Wilson
- Department of Bioelectronics and Biosensors, Science Campus, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
45
|
Anti-adhesive antimicrobial peptide coating prevents catheter associated infection in a mouse urinary infection model. Biomaterials 2017; 116:69-81. [DOI: 10.1016/j.biomaterials.2016.11.047] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/14/2016] [Accepted: 11/24/2016] [Indexed: 12/21/2022]
|