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Dereje DM, Pontremoli C, García A, Galliano S, Colilla M, González B, Vallet-Regí M, Izquierdo-Barba I, Barbero N. Poly Lactic-co-Glycolic Acid (PLGA) Loaded with a Squaraine Dye as Photosensitizer for Antimicrobial Photodynamic Therapy. Polymers (Basel) 2024; 16:1962. [PMID: 39065279 PMCID: PMC11281082 DOI: 10.3390/polym16141962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Antimicrobial Photodynamic Therapy (aPDT) is an innovative and promising method for combating infections, reducing the risk of antimicrobial resistance compared to traditional antibiotics. Squaraine (SQ) dyes can be considered promising photosensitizers (PSs) but are generally hydrophobic molecules that can self-aggregate under physiological conditions. To overcome these drawbacks, a possible solution is to incorporate SQs inside nanoparticles (NPs). The present work deals with the design and development of innovative nanophotosensitizers based on poly lactic-co-glycolic acid (PLGA) NPs incorporating a brominated squaraine (BrSQ) with potential application in aPDT. Two designs of experiments (DoEs) based on the single emulsion and nanoprecipitation methods were set up to investigate how different variables (type of solvent, solvent ratio, concentration of PLGA, stabilizer and dye, sonication power and time) can affect the size, zeta (ζ)-potential, yield, entrapment efficiency, and drug loading capacity of the SQ-PLGA NPs. SQ-PLGA NPs were characterized by NTA, FE-SEM, and UV-Vis spectroscopy and the ability to produce reactive oxygen species (ROS) was evaluated, proving that ROS generation ability is preserved in SQ-PLGA. In vitro antimicrobial activity against Gram-positive bacteria in planktonic state using Staphylococcus aureus was conducted in different conditions and pH to evaluate the potential of these nanophotosensitizers for aPDT in the local treatment of infections.
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Affiliation(s)
- Degnet Melese Dereje
- Department of Chemistry, NIS Interdepartmental and INSTM Reference Centre, University of Torino, Via G. Quarello 15A, 10135 Torino, Italy; (D.M.D.); (C.P.); (S.G.)
- Department of Chemical Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Polypeda 01, Bahir Dar 0026, Ethiopia
| | - Carlotta Pontremoli
- Department of Chemistry, NIS Interdepartmental and INSTM Reference Centre, University of Torino, Via G. Quarello 15A, 10135 Torino, Italy; (D.M.D.); (C.P.); (S.G.)
| | - Ana García
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.G.); (M.C.); (B.G.); (M.V.-R.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Simone Galliano
- Department of Chemistry, NIS Interdepartmental and INSTM Reference Centre, University of Torino, Via G. Quarello 15A, 10135 Torino, Italy; (D.M.D.); (C.P.); (S.G.)
| | - Montserrat Colilla
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.G.); (M.C.); (B.G.); (M.V.-R.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Blanca González
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.G.); (M.C.); (B.G.); (M.V.-R.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - María Vallet-Regí
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.G.); (M.C.); (B.G.); (M.V.-R.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Isabel Izquierdo-Barba
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid, Research Institute Hospital 12 de Octubre (i+12), Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.G.); (M.C.); (B.G.); (M.V.-R.)
- Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Nadia Barbero
- Department of Chemistry, NIS Interdepartmental and INSTM Reference Centre, University of Torino, Via G. Quarello 15A, 10135 Torino, Italy; (D.M.D.); (C.P.); (S.G.)
- Institute of Science and Technology for Ceramics (ISSMC-CNR), Via Granarolo, 64, 48018 Faenza, Italy
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Sun G, Huang S, Wang S, Li Y. Nanomaterial-based drug-delivery system as an aid to antimicrobial photodynamic therapy in treating oral biofilm. Future Microbiol 2024; 19:741-759. [PMID: 38683167 PMCID: PMC11259068 DOI: 10.2217/fmb-2023-0259] [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: 11/16/2023] [Accepted: 02/01/2024] [Indexed: 05/01/2024] Open
Abstract
Diverse microorganisms live as biofilm in the mouth accounts for oral diseases and treatment failure. For decades, the prevention and treatment of oral biofilm is a global challenge. Antimicrobial photodynamic therapy (aPDT) holds promise for oral biofilm elimination due to its several traits, including broad-spectrum antimicrobial capacity, lower possibility of resistance and low cytotoxicity. However, the physicochemical properties of photosensitizers and the biological barrier of oral biofilm have limited the efficiency of aPDT. Nanomaterials has been used to fabricate nanocarriers to improve photosensitizer properties and thus enhance antimicrobial effect. In this review, we have discussed the challenges of aPDT used in dentistry, categorized the nanomaterial-delivery system and listed the possible mechanisms involved in nanomaterials when enhancing aPDT effect.
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Affiliation(s)
- Guanwen Sun
- Department of stomatology, Fujian Medical University Xiamen Humanity Hospital, Xiamen, China
| | - Shan Huang
- Department of stomatology, Zhongshan Hospital affiliated to Xiamen University, Xiamen, China
| | - Shaofeng Wang
- Department of Endodontics, Stomatological Hospital of Xiamen Medical College, Xiamen, China
| | - Yijun Li
- Department of Endodontics, Stomatological Hospital of Xiamen Medical College, Xiamen, China
- Xiamen Key Laboratory of Stomatological Disease Diagnosis & Treatment, Xiamen, China
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Liu X, Guo C, Zhuang K, Chen W, Zhang M, Dai Y, Tan L, Ran Y. A recyclable and light-triggered nanofibrous membrane against the emerging fungal pathogen Candida auris. PLoS Pathog 2022; 18:e1010534. [PMID: 35613180 PMCID: PMC9173615 DOI: 10.1371/journal.ppat.1010534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 06/07/2022] [Accepted: 04/20/2022] [Indexed: 11/18/2022] Open
Abstract
The emerging "super fungus" Candida auris has become an important threat to human health due to its pandrug resistance and high lethality. Therefore, the development of novel antimicrobial strategy is essential. Antimicrobial photodynamic therapy (aPDT) has excellent performance in clinical applications. However, the relevant study on antifungal activity and the mechanism involved against C. auris remains scarce. Herein, a recyclable and biodegradable polylactic acid-hypocrellin A (PLA-HA) nanofibrous membrane is newly developed. In vitro PLA-HA-aPDT could significantly reduce the survival rate of C. auris plankton and its biofilms, and the fungicidal effect of the membrane is still significant after four repeated uses. Simultaneously, PLA-HA exhibits good biocompatibility and low hemolysis. In vivo experiments show that PLA-HA-aPDT can promote C. auris-infected wound healing, reduce inflammatory response, and without obvious toxic side-effects. Further results reveal that PLA-HA-aPDT could increase endogenous reactive oxygen species (ROS) levels, leading to mitochondrial dysfunction, release of cytochrome C, activation of metacaspase, and nuclear fragmentation, thereby triggering apoptosis of C. auris. Compared with HA, PLA-HA shows stronger controllability and reusability, which can greatly improve the utilization efficiency of HA alone. Taken together, the efficacy, safety and antifungal activity make PLA-HA-aPDT a highly promising antifungal candidate for skin or mucous membrane C. auris infection. It is urgent to develop new antifungal strategies to address the problem of Candida auris infection and drug resistance. Previous studies have revealed that antimicrobial photodynamic therapy (aPDT) based on natural products, such as hypocrellin A (HA), is a promising method in clinical applications. However, equivalent studies of aPDT on antifungal activity and its mechanism against C. auris remain scarce. Herein, we successfully prepared a recyclable, biodegradable, and light-driven antifungal PLA-HA nanofibrous membrane through the electrospinning technique. C. auris infection has been treated by aPDT in vitro and in vivo for the first time, especially HA-mediated aPDT. In vitro and in vivo experiments have provided sufficient lines of evidence that PLA-HA is a promising antifungal material for superficial C. auris infections due to its antifungal effect and excellent biocompatibility. Notably, there still remains a very high antifungal activity after utilizing PLA-HA four times. In addition, this study clarifies that the anti-C. auris mechanism of PLA-HA, namely, PLA-HA-mediated aPDT, is attributed to the formation of intracellular ROS, resulting in mitochondrial dysfunction and a decline in the mitochondrial transmembrane potential, releasing cytochrome C from mitochondria to the cytoplasm, promoting the activation of metacaspase, and inducing nuclear condensation and fragmentation of C. auris, thus triggering yeast cell apoptosis. This study lays a foundation for developing new antimicrobial nanofibrous dressings mediated by aPDT and provides an alternative strategy for the treatment of local fungal infectious diseases.
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Affiliation(s)
- Xinyao Liu
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Academician Workstation of Wanqing Liao, West China Hospital, Sichuan University, Chengdu, China
| | - Chuan Guo
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Kaiwen Zhuang
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Academician Workstation of Wanqing Liao, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Chen
- Department of Physics, The University of Texas at Arlington, Arlington, Texas United States of America
| | - Muqiu Zhang
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Academician Workstation of Wanqing Liao, West China Hospital, Sichuan University, Chengdu, China
| | - Yalin Dai
- Division of Clinical Microbiology, Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lin Tan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
- * E-mail: (LT); (YR)
| | - Yuping Ran
- Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Academician Workstation of Wanqing Liao, West China Hospital, Sichuan University, Chengdu, China
- * E-mail: (LT); (YR)
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Haddadi A, Chaffey A, Ng SH, Yalamati D, Wilson HL. Combination of Innate Immune Modulators as Vaccine Adjuvants in Mice. Vaccines (Basel) 2020; 8:E569. [PMID: 33019524 PMCID: PMC7712867 DOI: 10.3390/vaccines8040569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 12/11/2022] Open
Abstract
The development of new, effective, and safe vaccines necessarily requires the identification of new adjuvant(s) to enhance the potency and longevity of antigen-specific immune responses. In the present study, we compare the antibody-mediated and cell-mediated immune (CMI) responses within groups of mice vaccinated subcutaneously with ovalbumin (OVA; as an experimental antigen) plus polyphosphazene (an innate immune modulator), Polyinosinic:polycytidylic acid (poly-I:C; (an RNA mimetic) and glycopeptide ARC5 (which is a Toll-like receptor (TLR), TLR2 ligand and PAM3CSK4 analogue) formulated together in a soluble vaccine. We also investigated the effect of a polymeric nanoparticle of ARC4 and ARC7 (which are a novel muramyl dipeptide analogue and a monophosophoryl lipid A (MPLA) analogue, respectively) plus OVA +/- ARC5 as a subcutaneous vaccine in mice. OVA+ARC4/ARC7 nanoparticle +/- ARC5 triggered a robust and balanced Th1/Th2-type humoral response with significant anti-OVA IgA in serum, and significant interferon (IFN)-γ and interleukin (IL)-17 production in splenocytes after 35 days relative to the controls. Formulation of OVA with ARC4/ARC7 nanoparticles should be investigated for inducing protective immunity against infectious pathogens in mice and other species.
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Affiliation(s)
- Azita Haddadi
- Division of Pharmacy, College of Pharmacy & Nutrition, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada;
| | - Alyssa Chaffey
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (A.C.); (S.H.N.)
| | - Siew Hon Ng
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (A.C.); (S.H.N.)
| | | | - Heather L. Wilson
- Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, Saskatoon, SK S7N 5E3, Canada; (A.C.); (S.H.N.)
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Qidwai A, Annu, Nabi B, Kotta S, Narang JK, Baboota S, Ali J. Role of nanocarriers in photodynamic therapy. Photodiagnosis Photodyn Ther 2020; 30:101782. [DOI: 10.1016/j.pdpdt.2020.101782] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/08/2020] [Accepted: 04/13/2020] [Indexed: 12/15/2022]
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Singh S, Aggarwal A, Bhupathiraju NDK, Jovanovic IR, Landress M, Tuz MP, Gao R, Drain CM. Comparing a thioglycosylated chlorin and phthalocyanine as potential theranostic agents. Bioorg Med Chem 2020; 28:115259. [DOI: 10.1016/j.bmc.2019.115259] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/28/2019] [Accepted: 12/07/2019] [Indexed: 12/24/2022]
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Halayqa M, Zawadzki M, Domańska U, Plichta A. API-ammonium ionic liquid – Polymer compounds as a potential tool for delivery systems. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.136] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
In chemotherapy a fine balance between therapeutic and toxic effects needs to be found for each patient, adapting standard combination protocols each time. Nanotherapeutics has been introduced into clinical practice for treating tumors with the aim of improving the therapeutic outcome of conventional therapies and of alleviating their toxicity and overcoming multidrug resistance. Photodynamic therapy (PDT) is a clinically approved, minimally invasive procedure emerging in cancer treatment. It involves the administration of a photosensitizer (PS) which, under light irradiation and in the presence of molecular oxygen, produces cytotoxic species. Unfortunately, most PSs lack specificity for tumor cells and are poorly soluble in aqueous media, where they can form aggregates with low photoactivity. Nanotechnological approaches in PDT (nanoPDT) can offer a valid option to deliver PSs in the body and to solve at least some of these issues. Currently, polymeric nanoparticles (NPs) are emerging as nanoPDT system because their features (size, surface properties, and release rate) can be readily manipulated by selecting appropriate materials in a vast range of possible candidates commercially available and by synthesizing novel tailor-made materials. Delivery of PSs through NPs offers a great opportunity to overcome PDT drawbacks based on the concept that a nanocarrier can drive therapeutic concentrations of PS to the tumor cells without generating any harmful effect in non-target tissues. Furthermore, carriers for nanoPDT can surmount solubility issues and the tendency of PS to aggregate, which can severely affect photophysical, chemical, and biological properties. Finally, multimodal NPs carrying different drugs/bioactive species with complementary mechanisms of cancer cell killing and incorporating an imaging agent can be developed. In the following, we describe the principles of PDT use in cancer and the pillars of rational design of nanoPDT carriers dictated by tumor and PS features. Then we illustrate the main nanoPDT systems demonstrating potential in preclinical models together with emerging concepts for their advanced design.
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Conte C, Ungaro F, Mazzaglia A, Quaglia F. Photodynamic Therapy for Cancer: Principles, Clinical Applications, and Nanotechnological Approaches. NANO-ONCOLOGICALS 2014. [DOI: 10.1007/978-3-319-08084-0_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Shi L, Wang X, Zhao F, Luan H, Tu Q, Huang Z, Wang H, Wang H. In vitro evaluation of 5-aminolevulinic acid (ALA) loaded PLGA nanoparticles. Int J Nanomedicine 2013; 8:2669-76. [PMID: 23926429 PMCID: PMC3728265 DOI: 10.2147/ijn.s45821] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background 5-Aminolevulinic acid (ALA) is a prodrug for topical photodynamic therapy. The effectiveness of topical ALA can be limited by its bioavailability. The aim of this study was to develop a novel ALA delivery approach using poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs). Methods A modified double emulsion solvent evaporation method was used to prepare ALA loaded PLGA NPs (ALA PLGA NPs). The characteristics, uptake, protoporphyrin IX fluorescence kinetics, and cytotoxicity of ALA PLGA NPs toward a human skin squamous cell carcinoma cell line were examined. Results The mean particle size of spherical ALA PLGA NPs was 65.6 nm ± 26 nm with a polydispersity index of 0.62. The encapsulation efficiency was 65.8% ± 7.2% and ALA loading capacity was 0.62% ± 0.27%. When ALA was dispersed in PLGA NPs, it turned into an amorphous phase. ALA PLGA NPs could be taken up by squamous cell carcinoma cells and localized in the cytoplasm. The protoporphyrin IX fluorescence kinetics and 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay showed that ALA PLGA NPs were more effective than free ALA of the same concentration. Conclusion PLGA NPs provide a promising ALA delivery strategy for topical ALA-photodynamic therapy of skin squamous cell carcinoma.
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Affiliation(s)
- Lei Shi
- Shanghai Skin Disease Hospital, Shanghai, People's Republic of China
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