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Liu Y, Medlege HB, Kang Y, Wu L, Yang W, Zhang Y, Tian Y. Clinical efficacy of a new therapeutic option for lower genital tract lesions: 5-ALA photodynamic therapy. Lasers Med Sci 2024; 39:172. [PMID: 38965092 DOI: 10.1007/s10103-024-04129-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 06/26/2024] [Indexed: 07/06/2024]
Abstract
The study utilized 5-ALA-PDT to treat patients with CIN or VaIN and assessed their clinical response, HPV clearance, and influencing factors after photodynamic therapy (PDT). This study involved 56 patients who received 5-ALA-PDT in a single center from May 2020 to March 2022, including 12 patients with CIN, 30 patients with VaIN, and 14 patients with both CIN and VaIN. Follow-up were conducted within 6 and 12 months after treatment to evaluate the clinical effectiveness of PDT. The assessment criteria included histological response (ER, elimination rate, RR, regression rate) and HPV clearance. Additionally, factors that could potentially influence the outcomes were analyzed. After PDT, the histological response showed an ER of 48.2% (27/56) and a RR of 80.4% (45/56) within 6 months of follow-up. The elimination rate increased to 69.6% (39/56) within 12 months, along with a regression rate of 82.1% (46/56). The rates of HPV clearance were observed to be 37.5% (21/56) and 44.6% (25/56) within 6 and 12 months, respectively. The study also revealed that HPV clearance significantly influenced histologic elimination within 6 months (p < 0.001) and histologic regression within 12 months (p < 0.01). Furthermore, premenopausal women exhibited a higher HPV clearance rate compared to postmenopausal women (61.5% vs. 30.0%, p = 0.036). 5-ALA PDT can be considered as an available option for the treatment of lower genital squamous intraepithelial lesions. The efficacy of its histologic response depends on HPV clearance. Additionally, it has been found that premenopausal women may benefit more from this treatment.
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Affiliation(s)
- Yingzhen Liu
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha, Hunan, China
| | - Hekabakila-Banzouzi Medlege
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha, Hunan, China
| | - Yanan Kang
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China
| | - Lisha Wu
- Institute of Medical Sciences, Xiangya Hoapital, Central South University, Changsha, Hunan, China
| | - Wenqing Yang
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha, Hunan, China
| | - Yu Zhang
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yan Tian
- Department of Gynecology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 41008, China.
- Gynecological Oncology Research and Engineering Center of Hunan Province, Changsha, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
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Yu Q, Wang C, Zhang X, Chen H, Wu MX, Lu M. Photochemical Strategies toward Precision Targeting against Multidrug-Resistant Bacterial Infections. ACS NANO 2024; 18:14085-14122. [PMID: 38775446 DOI: 10.1021/acsnano.3c12714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Infectious diseases pose a serious threat and a substantial economic burden on global human and public health security, especially with the frequent emergence of multidrug-resistant (MDR) bacteria in clinical settings. In response to this urgent need, various photobased anti-infectious therapies have been reported lately. This Review explores and discusses several photochemical targeted antibacterial therapeutic strategies for addressing bacterial infections regardless of their antibiotic susceptibility. In contrast to conventional photobased therapies, these approaches facilitate precise targeting of pathogenic bacteria and/or infectious microenvironments, effectively minimizing toxicity to mammalian cells and surrounding healthy tissues. The highlighted therapies include photodynamic therapy, photocatalytic therapy, photothermal therapy, endogenous pigments-based photobleaching therapy, and polyphenols-based photo-oxidation therapy. This comprehensive exploration aims to offer updated information to facilitate the development of effective, convenient, safe, and alternative strategies to counter the growing threat of MDR bacteria in the future.
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Affiliation(s)
- Qiang Yu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chenxi Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xingcai Zhang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Haoyi Chen
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Mei X Wu
- Wellman Center for Photomedicine, Massachusetts General Hospital Department of Dermatology, Harvard Medical School, 50 Blossom Street, Boston, Massachusetts 02114, United States
| | - Min Lu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Teranishi R, Ozawa T, Katayama B, Shimojo Y, Ito N, Awazu K, Tsuruta D. Effect of photodynamic therapy with 5-aminolevulinic acid and EDTA-2Na against mixed infection of methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12959. [PMID: 38528712 DOI: 10.1111/phpp.12959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 01/27/2024] [Accepted: 02/22/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND The increasing abundance of drug-resistant bacteria is a global threat. Photodynamic therapy is an entirely new, non-invasive method for treating infections caused by antibiotic-resistant strains. We previously described the bactericidal effect of photodynamic therapy on infections caused by a single type of bacterium. We showed that gram-positive and gram-negative bacteria could be killed with 5-aminolevulic acid and 410 nm light, respectively. However, clinically, mixed infections are common and difficult to treat. OBJECTIVE We investigated the bactericidal effects of photodynamic therapy on mixed infections of methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa. METHODS We compared bacterial growth with and without photodynamic therapy in vitro. Then, in vivo, we studied mixed infections in a mouse skin ulcer model. We evaluated the rates of ulcer area reduction and transitions to healing in treated and untreated mice. In addition, a comparison was made between PDT and existing topical drugs. RESULTS We found that photodynamic therapy markedly reduced the growth of both methicillin-resistant Staphylococcus aureus and Pseudomonas aeruginosa, in culture, and it reduced the skin ulcer areas in mice. PDT was also more effective than existing topical medicines. CONCLUSION This study showed that photodynamic therapy had antibacterial effects against a mixed infection of gram-positive and gram-negative bacteria, and it promoted skin ulcer healing. These results suggested that photodynamic therapy could be effective in both single- and mixed-bacterial infections.
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Affiliation(s)
- Rie Teranishi
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Toshiyuki Ozawa
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Research Center for Infectious Disease Sciences, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Bunpei Katayama
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yu Shimojo
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Medical Beam Physics Laboratory, Osaka University Graduate School of Engineering, Osaka, Japan
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Nobuhisa Ito
- Medical Beam Physics Laboratory, Osaka University Graduate School of Engineering, Osaka, Japan
| | - Kunio Awazu
- Medical Beam Physics Laboratory, Osaka University Graduate School of Engineering, Osaka, Japan
| | - Daisuke Tsuruta
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Research Center for Infectious Disease Sciences, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Duan Z, Tong J, Zheng N, Zeng R, Liu Y, Li M. Effect of 5-Aminolevulinic Acid Photodynamic Therapy on Aspergillus fumigatus Biofilms in Vitro. Curr Microbiol 2023; 80:334. [PMID: 37659001 PMCID: PMC10474982 DOI: 10.1007/s00284-023-03351-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 05/27/2023] [Indexed: 09/05/2023]
Abstract
Aspergillus fumigatus biofilm development results in enhanced pathogenicity and treatment resistance. Most contemporary antibiotics, however, are unable to eliminate biofilms. In recent years, with the application of new photosensitizers and the development of treatment, ALA-PDT (5-aminolevulinic acid photodynamic treatment) has achieved remarkable curative effect in the treatment of fungal infectious diseases; however, no research has been conducted on ALA-PDT against A. fumigatus. This study investigated the inhibitory effect of ALA-PDT at various 5-aminolevulinic acid concentrations and light doses on A. fumigatus planktonic and biofilms in vitro. We found that ALA-PDT may successfully inhibit the development of A. fumigatus biofilm and disintegrate mature biofilm. After ALA-PDT treatment, the adherence rate and vitality dramatically decreased, and the biofilm's structure was severely compromised. Our findings show for the first time that ALA-PDT may be used to prevent the formation of A. fumigatus biofilm and disturb the structure of mature biofilm, and that it could be employed as a therapeutic therapy for A. fumigatus superficial infection.
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Affiliation(s)
- Zhimin Duan
- Hospital for Skin Diseases (Institute of Dermatology), Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Jianbo Tong
- Department of Dermatology, Institute of Dermatology, Jiangxi Academy of Clinical Medical Sciences, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330001, Jiangxi, China
| | - Nana Zheng
- Hospital for Skin Diseases (Institute of Dermatology), Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Rong Zeng
- Hospital for Skin Diseases (Institute of Dermatology), Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, Jiangsu, China.
- Department of Dermatology, The First Affiliated Hospital of Yunnan Traditional Chinese Medicine University, No. 120 Guanghua Rd, Kuming, 650021, China.
| | - Yuzhen Liu
- Department of Dermatology, Nanjing Jiangning Hospital, Nanjing, 211100, Jiangsu, China.
| | - Min Li
- Hospital for Skin Diseases (Institute of Dermatology), Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, Jiangsu, China.
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
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Chen C, Wang P, Zhang L, Liu X, Zhang H, Cao Y, Wang X, Zeng Q. Exploring the Pathogenesis and Mechanism-Targeted Treatments of Rosacea: Previous Understanding and Updates. Biomedicines 2023; 11:2153. [PMID: 37626650 PMCID: PMC10452301 DOI: 10.3390/biomedicines11082153] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Rosacea is a chronic inflammatory skin disease characterized by recurrent erythema, flushing, telangiectasia, papules, pustules, and phymatous changes in the central area of the face. Patients with this condition often experience a significant negative impact on their quality of life, self-esteem, and overall well-being. Despite its prevalence, the pathogenesis of rosacea is not yet fully understood. Recent research advances are reshaping our understanding of the underlying mechanisms of rosacea, and treatment options based on the pathophysiological perspective hold promise to improve patient outcomes and reduce incidence. In this comprehensive review, we investigate the pathogenesis of rosacea in depth, with a focus on emerging and novel mechanisms, and provide an up-to-date overview of therapeutic strategies that target the diverse pathogenic mechanisms of rosacea. Lastly, we discuss potential future research directions aimed at enhancing our understanding of the condition and developing effective treatments.
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Affiliation(s)
| | | | | | | | | | | | - Xiuli Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200040, China
| | - Qingyu Zeng
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200040, China
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Zhao X, Cheng H, Wang Q, Nie W, Yang Y, Yang X, Zhang K, Shi J, Liu J. Regulating Photosensitizer Metabolism with DNAzyme-Loaded Nanoparticles for Amplified Mitochondria-Targeting Photodynamic Immunotherapy. ACS NANO 2023; 17:13746-13759. [PMID: 37438324 DOI: 10.1021/acsnano.3c03308] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Mitochondria-specific photosensitizer accumulation is highly recommended for photodynamic therapy and mitochondrial DNA (mtDNA) oxidative damage-based innate immunotherapy but remains challenging. 5-Aminolevulinic acid (ALA), precursor of photosensitizer protoporphyrin IX (PpIX), can induce the exclusive biosynthesis of PpIX in mitochondria. Nevertheless, its photodynamic effect is limited by the intracellular biotransformation of ALA in tumors. Here, we report a photosensitizer metabolism-regulating strategy using ALA/DNAzyme-co-loaded nanoparticles (ALA&Dz@ZIF-PEG) for mitochondria-targeting photodynamic immunotherapy. The zeolitic imidazolate framework (ZIF-8) nanoparticles can be disassembled and release large amounts of zinc ions (Zn2+) within tumor cells. Notably, Zn2+ can relieve tumor hypoxia for promoting the conversion of ALA to PpIX. Moreover, Zn2+ acts as a cofactor of rationally designed DNAzyme for silencing excessive ferrochelatase (FECH; which catalyzes PpIX into photoinactive Heme), cooperatively promoting the exclusive accumulation of PpIX in mitochondria via the "open source and reduced expenditure" manner. Subsequently, the photodynamic effects derived from PpIX lead to the damage and release of mtDNA and activate the innate immune response. In addition, the released Zn2+ further enhances the mtDNA/cGAS-STING pathway mediated innate immunity. The ALA&Dz@ZIF-PEG system induced 3 times more PpIX accumulation than ALA-loaded liposome, significantly enhancing tumor regression in xenograft tumor models.
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Affiliation(s)
- Xiu Zhao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Hui Cheng
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Qiongwei Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Weimin Nie
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Yue Yang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Xinyuan Yang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
| | - Kaixiang Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, People's Republic of China
| | - Jinjin Shi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, People's Republic of China
| | - Junjie Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, People's Republic of China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou 450001, People's Republic of China
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450001, People's Republic of China
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Petrini M, D'Amico E, Pierfelice TV, Aceto GM, Karaban M, Felice P, Piattelli A, Barone A, Iezzi G. Photodynamic Therapy with Aminolevulinic Acid Enhances the Cellular Activity of Cells Cultured on Porcine Acellular Dermal Matrix Membranes Used in Periodontology. Gels 2023; 9:584. [PMID: 37504463 PMCID: PMC10379034 DOI: 10.3390/gels9070584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
This study aims to test a photodynamic protocol based on a gel containing aminolevulinic acid followed by red-LED (ALAD-PDT) irradiation on human gingival fibroblasts (hGFs) and osteoblasts (hOBs) cultured on a porcine acellular dermal matrix membrane (PADMM). In the previous literature, ALAD-PDT showed solid antibacterial activity and proliferative induction on HGFs cultured on plates and HOBs cultured on a cortical lamina. PADMMs are used in dentistry and periodontology to treat gingival recessions and to increase the tissue thickness in the case of a thin biotype without the risks or postoperative discomfort associated with connective tissue grafts. However, one of the possible complications in this type of surgery is represented by bacterial invasion and membrane exposition during the healing period. We hypothesized that the addition of ALAD-PDT to PADMMs could enhance more rapid healing and decrease the risks connected with bacterial invasion. In periodontal surgery, PADMMs are inserted after a full-thickness flap elevation between the bone and the flap. Consequently, all procedures were performed in parallel on hOBs and hGFs obtained by dental patients. The group control (CTRL) was represented by the unexposed cells cultured on the membranes, group LED (PDT) were the cells subjected to 7 min of red LED irradiation, and ALAD-PDT were the cells subjected to 45 min of ALAD incubation and then to 7 min of red LED irradiation. After treatments, all groups were analyzed for MTT assay and subjected to histological examination at 3 and 7 days and to the SEM observations at 3, 7, and 14 days. Different bone mineralization assays were performed to quantify the effects of ALAD-PDT on hOBs: ALP activity, ALP gene expression, osteocalcin, and alizarin red. The effects of ALAD-PDT on hGFs were evaluated by quantifying collagen 1, fibronectin, and MMP-8. Results showed that ALAD-PDT promoted cellular induction, forming a dense cellular network on hOBs and hGFs, and the assays performed showed statistically significantly higher values for ALAD-PDT with respect to LED alone and CTRLs. In conclusion, ALAD-PDT could represent a promising aid for enhancing the healing of gingival tissues after PADMM applications.
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Affiliation(s)
- Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Emira D'Amico
- Department of Medical, Oral and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Tania Vanessa Pierfelice
- Department of Medical, Oral and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Gitana Maria Aceto
- Department of Medical, Oral and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Maryia Karaban
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Pietro Felice
- Department of Biomedical and Neuromotor Sciences, University of Bologna, 40126 Bologna, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University of Health and Medical Sciences, 00131 Rome, Italy
| | - Antonio Barone
- Department of Surgical, Medical, Molecular Pathologies and of the Critical Needs, School of Dentistry, University of Pisa, 56126 Pisa, Italy
- Complex Unit of Stomatology and Oral Surgery, University Hospital of Pisa, 56126 Pisa, Italy
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy
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Guo Y, Zeng M, Yuan Y, Yuan M, Chen Y, Yu H, Liu R, Ruan Z, Xie Q, Jiao X, Lu T. Photodynamic therapy treats acne by altering the composition of the skin microbiota. Skin Res Technol 2023; 29:e13269. [PMID: 36704881 PMCID: PMC9838775 DOI: 10.1111/srt.13269] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 12/17/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Acne is the eighth-most prevalent inflammatory skin disease with no optimal treatment. Photodynamic therapy (PDT) is an effective treatment for severe acne. AIMS The effect of PDT on the composition and diversity of skin microflora in severe acne patients was studied. MATERIALS AND METHODS A total of 18 patients with severe acne and 8 healthy individuals were selected for this study. Patients were treated with 5-aminolevulinic acid-mediated PDT once a week three times in total; the skin microbiome was measured by 16S ribosomal RNA gene sequencing before and after treatment (1 week after each PDT). RESULTS The microflora composition was different between healthy controls and patients, and between patients before and after treatment. Alpha diversity indices were lower in patients than those in control. There were 15 bacterial genera with high relative abundance that had noticeable changes during treatment. At the genus level,particularly Cutibacterium acnes (C. acnes formerly Propionibacterium acnes), there was no statistically significant difference among different group. The abundances of Staphylococcus epidermidis and Staphylococcus aureus were low. DISCUSSION The microbial composition is different between severe acne patients acne patients and healthy individuals. The therapeutic efficacy of severe acne treated with PDT is associated with the composition and diversity of skin microbiota. CONCLUSION The skin microbial composition changes after PDT treatment. PDT is an effective method for the treatment of severe acne.
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Affiliation(s)
- Yangmin Guo
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Department of DermatologyHuizhou Dermatology HospitalHuizhouChina
| | - Mi Zeng
- Department of Cell Biology and GeneticsShantou University Medical CollegeShantouChina
| | - Yumeng Yuan
- Department of Cell Biology and GeneticsShantou University Medical CollegeShantouChina
| | - Mengsi Yuan
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Yanxia Chen
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Haoyang Yu
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Ruimin Liu
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Zhijie Ruan
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Qingdong Xie
- Department of Cell Biology and GeneticsShantou University Medical CollegeShantouChina
| | - Xiaoyang Jiao
- Department of Cell Biology and GeneticsShantou University Medical CollegeShantouChina
| | - Tao Lu
- Department of DermatologyFirst Affiliated Hospital of Shantou University Medical CollegeShantouChina
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9
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Zhong Z, Zhang Y, Fu X, Liu S, Zhang C, Guo W, Xu X, Liao L. Construction of photo-induced zinc-doped carbon dots based on drug-resistant bactericides and their application for local treatment. NANOSCALE ADVANCES 2022; 4:5365-5377. [PMID: 36540119 PMCID: PMC9724749 DOI: 10.1039/d2na00375a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/18/2022] [Indexed: 06/17/2023]
Abstract
In this project, we propose a highly effective photosensitizer that breaks through drug-resistant bacterial infections with zinc-doped carbon dots. By passing through the membrane of drug-resistant bacteria, the photosensitizers produce ROS in bacteria under the action of blue light to directly kill bacteria, so as to realize the antibacterial local treatment of drug-resistant bacteria. The experiment firstly uses an efficient one-step hydrothermal method to prepare zinc-doped red-light CDs as photosensitizers, in which zinc metal was doped to improve the optical properties of the CDs. Then we try first to use EDTA as a second-step attenuator for preparing CDs to obtain photosensitizers with high-efficiency and low toxicity. In vitro cytotoxicity tests, bacterial effect tests, and in vivo animal experiments have also demonstrated that this antibacterial method has great potential for clinical translation, with a bactericidal efficiency of up to 90%. More notably, we used this antibacterial regimen seven times repeatedly to simulate the bacterial resistance process, with a bactericidal efficiency of up to 90% every time. The result indicated that S. aureus did not develop resistance to our method, showing that our method has the potential to break through drug-resistant bacterial infections as an alternative to antibiotic candidates.
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Affiliation(s)
- Zhuoling Zhong
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Yaoyao Zhang
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University Chengdu Sichuan 610041 China
| | - Xiaoyun Fu
- Neijiang Medical School in Sichuan Province Neijiang 641199 China
| | - Shuyao Liu
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Chuanwei Zhang
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Weijie Guo
- West China School of Public Health, West China Fourth Hospital, Sichuan University Chengdu 610041 China
| | - Xiaoping Xu
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 China
| | - Liyun Liao
- School of Pharmacy, Chengdu Medical College 783, Xindu Avenue Chengdu 610500 China
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Mathematical modelling for antimicrobial photodynamic therapy mediated by 5-aminolaevulinic acid: An in vitro study. Photodiagnosis Photodyn Ther 2022; 40:103116. [PMID: 36100198 DOI: 10.1016/j.pdpdt.2022.103116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/09/2022] [Accepted: 09/09/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Antimicrobial photodynamic therapy (aPDT) using aminolaevulinic acid (ALA) is a promising alternative to antibiotic therapy. ALA administration induces protoporphyrin IX (PpIX) accumulation in bacteria, and light excitation of the accumulated PpIX generates singlet oxygen to bacterial toxicity. Several factors, including drug administration and light irradiation conditions, contribute to the antibiotic effect. Such multiple parameters should be determined moderately for effective aPDT in clinical practice. METHODS A mathematical model to predict bacterial dynamics in ALA-aPDT following clinical conditions was constructed. Applying a pharmacokineticspharmacodynamics (PK-PD) approach, which is widely used in antimicrobial drug evaluation, viable bacteria count by defining the bactericidal rate as the concentration of singlet oxygen produced when PpIX in bacteria is irradiated by light. RESULTS The in vitro experimental results of ALA-aPDT for Pseudomonas aeruginosa demonstrated the PK-PD model validity. The killing rate has an upper limit, and the lower power density for a long irradiation time can suppress the viable bacteria number when the light dosages are the same. CONCLUSIONS This study proposed a model of bacterial viability change in ALA-aPDT based on the PK-PD model and confirmed, by in vitro experiments using PA, that the variation of bacterial viability with light-sensitive substance concentration and light irradiation power densities could be expressed. Further validation of the PK-PD model with other gram negative and gram positive strains will be needed.
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Zhang C, Zhao X, Li D, Ji F, Dong A, Chen X, Zhang J, Wang X, Zhao Y, Chen X. Advances in 5-aminoketovaleric acid(5-ALA) nanoparticle delivery system based on cancer photodynamic therapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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D’Ercole S, Carlesi T, Dotta TC, Pierfelice TV, D’Amico E, Tripodi D, Iezzi G, Piattelli A, Petrini M. 5-Aminolevulinic Acid and Red Led in Endodontics: A Narrative Review and Case Report. Gels 2022; 8:697. [PMID: 36354605 PMCID: PMC9689491 DOI: 10.3390/gels8110697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/17/2022] [Accepted: 10/26/2022] [Indexed: 08/26/2023] Open
Abstract
The present study aims to discuss the main factors involving the use of 5-aminolevulinic acid together with red LED light and its application in endodontic treatment through a narrative review and a case report. Persistence of microorganisms remaining on chemical-mechanical preparation or intracanal dressing is reported as the leading cause of failure in endodontics. Photodynamic therapy has become a promising antimicrobial strategy as an aid to endodontic treatment. Being easy and quick to apply, it can be used both in a single session and in several sessions, as well as not allowing forms of microbial resistance. 5-aminolevulinic acid in combination with red LED light has recently been studied in many branches of medicine, with good results against numerous types of bacteria including Enterococuss faecalis. The case report showed how bacterial count of CFU decreased by half (210 CFU/mL), after 45 min of irrigation with a gel containing 5% of 5-aminolevulinic acid compared to the sample before irrigation (420 CFU/mL). The subsequent irradiation of red LED light for 7 min, the bacterial count was equal to 0. Thus, it is concluded that the use of 5-aminolevulinic acid together with red LED light is effective in endodontic treatment.
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Affiliation(s)
- Simonetta D’Ercole
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Teocrito Carlesi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Tatiane Cristina Dotta
- Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo 14040-904, Brazil
| | - Tania Vanessa Pierfelice
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Emira D’Amico
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Domenico Tripodi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University for Health Sciences (Unicamillus), 00131 Rome, Italy
- Fondazione Villa Serena per la Ricerca, 65013 Città Sant’Angelo, Italy
- Casa di Cura Villa Serena, 65013 Città Sant’Angelo, Italy
| | - Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
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Braga GÚL, Silva-Junior GJ, Brancini GTP, Hallsworth JE, Wainwright M. Photoantimicrobials in agriculture. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 235:112548. [PMID: 36067596 DOI: 10.1016/j.jphotobiol.2022.112548] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/30/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Classical approaches for controlling plant pathogens may be impaired by the development of pathogen resistance to chemical pesticides and by limited availability of effective antimicrobial agents. Recent increases in consumer awareness of and/or legislation regarding environmental and human health, and the urgent need to improve food security, are driving increased demand for safer antimicrobial strategies. Therefore, there is a need for a step change in the approaches used for controlling pre- and post-harvest diseases and foodborne human pathogens. The use of light-activated antimicrobial substances for the so-called antimicrobial photodynamic treatment is known to be effective not only in a clinical context, but also for use in agriculture to control plant-pathogenic fungi and bacteria, and to eliminate foodborne human pathogens from seeds, sprouted seeds, fruits, and vegetables. Here, we take a holistic approach to review and re-evaluate recent findings on: (i) the ecology of naturally-occurring photoantimicrobials, (ii) photodynamic processes including the light-activated antimicrobial activities of some plant metabolites, and (iii) fungus-induced photosensitization of plants. The inhibitory mechanisms of both natural and synthetic light-activated substances, known as photosensitizers, are discussed in the contexts of microbial stress biology and agricultural biotechnology. Their modes-of-antimicrobial action make them neither stressors nor toxins/toxicants (with specific modes of poisonous activity), but a hybrid/combination of both. We highlight the use of photoantimicrobials for the control of plant-pathogenic fungi and quantify their potential contribution to global food security.
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Affiliation(s)
- Gilberto Ú L Braga
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14040-903, Brazil.
| | | | - Guilherme T P Brancini
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14040-903, Brazil.
| | - John E Hallsworth
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, Northern Ireland, United Kingdom.
| | - Mark Wainwright
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom.
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5-Aminolevulinic acid fluorescence in brain non-neoplastic lesions: a systematic review and case series. Neurosurg Rev 2022; 45:3139-3148. [PMID: 35972631 DOI: 10.1007/s10143-022-01843-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Fluorescence-guided surgery with 5-aminolevulinic acid (5-ALA) is used to assist brain tumor resection, especially for high-grade gliomas but also for low-grade gliomas, metastasis, and meningiomas. With the increasing use of this technique, even to assist biopsies, high-grade glioma-mimicking lesions had misled diagnosis by showing 5-ALA fluorescence in non-neoplastic lesions such as radiation necrosis and inflammatory or infectious disease. Since only isolated reports have been published, we systematically review papers reporting non-neoplastic lesion cases with 5-ALA according with the PRISMA guidelines, present our series, and discuss its pathophysiology. In total, 245 articles were identified and 12 were extracted according to our inclusion criteria. Analyzing 27 patients, high-grade glioma was postulated as preoperative diagnosis in 48% of the cases. Microsurgical resection was performed in 19 cases (70%), while 8 patients were submitted to biopsy (30%). We found 4 positive cases in demyelinating disease (50%), 4 in brain abscess (80%), 1 in neurocysticercosis (33%), 1 in neurotoxoplasmosis, infarction, and hematoma (100%), 4 in inflammatory disease (80%), and 3 in cortical dysplasia (100%). New indications are being considered especially in benign lesion biopsies with assistance of 5-ALA. Using fluorescence as an aid in biopsies may improve procedure time, number of samples, and necessity of intraoperative pathology. Further studies should include this technology to encourage more beneficial uses.
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15
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Pierfelice TV, D’Amico E, Petrini M, Pandolfi A, D’Arcangelo C, Di Pietro N, Piattelli A, Iezzi G. The Effects of 5% 5-Aminolevulinic Acid Gel and Red Light (ALAD-PDT) on Human Fibroblasts and Osteoblasts. Gels 2022; 8:gels8080491. [PMID: 36005091 PMCID: PMC9407194 DOI: 10.3390/gels8080491] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/04/2022] [Accepted: 08/06/2022] [Indexed: 11/23/2022] Open
Abstract
This study aimed to evaluate the effects of a new photodynamic protocol (ALAD-PDT), consisting of 5% 5-aminolevulinic acid-gel and 630 nm-LED, already used for antibacterial effects in the treatment of periodontitis, on human gingival fibroblasts (HGF) and primary human osteoblasts (HOB). HGF and HOB were incubated with different ALAD concentrations for 45 min, and subsequently irradiated with 630 nm-LED for 7 min. Firstly, the cytotoxicity at 24 h and proliferation at 48 and 72 h were assessed. Then the intracellular content of the protoporphyrin IX (PpIX) of the ROS and the superoxide dismutase (SOD) activity were investigated at different times. Each result was compared with untreated and unirradiated cells as the control. Viable and metabolic active cells were revealed at any concentrations of ALAD-PDT, but only 100-ALAD-PDT significantly enhanced the proliferation rate. The PpIX fluorescence significantly increased after the addition of 100-ALAD, and decreased after the irradiation. Higher ROS generation was detected at 10 min in HGF, and at 30 min in HOB. The activity of the SOD enzyme augmented at 30 min in both cell types. In conclusion, ALAD-PDT not only showed no cytotoxic effects, but had pro-proliferative effects on HGF and HOB, probably via ROS generation.
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Affiliation(s)
- Tania Vanessa Pierfelice
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Emira D’Amico
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Morena Petrini
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
- Correspondence: ; Tel.: +39-0871-355-4083
| | - Assunta Pandolfi
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
- Center for Advanced Studies and Technology-CAST, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Camillo D’Arcangelo
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Natalia Di Pietro
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
- Center for Advanced Studies and Technology-CAST, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
- Dental School, University of Belgrade, 11000 Belgrade, Serbia
- Fondazione Villa Serena per la Ricerca, 65013 Città Sant’Angelo, Italy
- Casa di Cura Villa Serena del Dott. L. Petruzzi, 65013 Città Sant’Angelo, Italy
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
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Zhou Y, Mo M, Luo D, Yang Y, Hu J, Ye C, Lin L, Xu C, Chen W. Evolutionary Trend Analysis of Research on 5-ALA Delivery and Theranostic Applications Based on a Scientometrics Study. Pharmaceutics 2022; 14:pharmaceutics14071477. [PMID: 35890373 PMCID: PMC9320574 DOI: 10.3390/pharmaceutics14071477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/12/2022] [Accepted: 07/05/2022] [Indexed: 12/10/2022] Open
Abstract
5-aminolevulinic acid (5-ALA) has been extensively studied for its sustainability and broad-spectrum applications in medical research and theranostics, as well as other areas. It’s a precursor of protoporphyrin IX (PpIX), a sustainable endogenous and naturally-existing photosensitizer. However, to the best of our knowledge, a scientometrics study based on the scientific knowledge assay of the overall situation on 5-ALA research has not been reported so far, which would be of major importance to the relevant researchers. In this study, we collected all the research articles published in the last two decades from the Web of Science Core Collection database and employed bibliometric methods to comprehensively analyze the dataset from different perspectives using CiteSpace. A total of 1595 articles were identified. The analysis results showed that China published the largest number of articles, and SBI Pharmaceuticals Co., Ltd. was the most productive institution that sponsored several of the most productive authors. The cluster analysis and burst detections indicated that the improvement of photodynamic efficacy theranostics is the up-to-date key direction in 5-ALA research. Furthermore, we emphatically studied nanotechnology involvement in 5-ALA delivery and theranostics research. We envision that our results will be beneficial for researchers to have a panorama of and deep insights into this area, thus inspiring further exploitations, especially of the nanomaterial-based systems for 5-ALA delivery and theranostic applications.
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Affiliation(s)
- You Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
- Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, College of Chemistry and Materials, Ningde Normal University, Ningde 352100, China;
| | - Mulan Mo
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
| | - Dexu Luo
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
| | - Yi Yang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
| | - Jialin Hu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
| | - Chenqing Ye
- Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, College of Chemistry and Materials, Ningde Normal University, Ningde 352100, China;
| | - Longxiang Lin
- Shenzhen Osteomore Biotechnology Co., Ltd., Shenzhen 518118, China;
| | - Chuanshan Xu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
- Correspondence: (C.X.); (W.C.)
| | - Wenjie Chen
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China; (Y.Z.); (M.M.); (D.L.); (Y.Y.); (J.H.)
- State Key Laboratory of Respiratory Disease, Guangdong-Hongkong-Macao Joint Laboratory of Respiratory Infectious Disease, Guangzhou 510182, China
- Sydney Vital Translational Cancer Research Centre, Westbourne St., Sydney, NSW 2065, Australia
- Correspondence: (C.X.); (W.C.)
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Wu X, Hu Y. Photodynamic Therapy for the Treatment of Fungal Infections. Infect Drug Resist 2022; 15:3251-3266. [PMID: 35761978 PMCID: PMC9233483 DOI: 10.2147/idr.s369605] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/11/2022] [Indexed: 11/23/2022] Open
Abstract
Cutaneous fungal infections are common in humans and are associated with significant physical and psychological distress to patients. Although conventional topical and/or oral anti-fungal medications are commonly recommended treatments, drug resistance has emerged as a significant concern in this patient population, and safer, more efficacious, and cost-effective alternatives are warranted. Recent studies have reported effectiveness of photodynamic therapy (PDT) against fungal infections without severe adverse effects. In this review, we briefly discuss the mechanisms underlying PDT, current progress, adverse effects, and limitations of this treatment in the management of superficial and deep fungal infections.
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Affiliation(s)
- Xuelin Wu
- Department of Dermatology and Venereology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, People's Republic of China
| | - Yongxuan Hu
- Department of Dermatology and Venereology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, People's Republic of China
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Antimicrobial Combined Action of Graphene Oxide and Light Emitting Diodes for Chronic Wound Management. Int J Mol Sci 2022; 23:ijms23136942. [PMID: 35805944 PMCID: PMC9266944 DOI: 10.3390/ijms23136942] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 12/14/2022] Open
Abstract
Innovative non-antibiotic compounds such as graphene oxide (GO) and light-emitting diodes (LEDs) may represent a valid strategy for managing chronic wound infections related to resistant pathogens. This study aimed to evaluate 630 nm LED and 880 nm LED ability to enhance the GO antimicrobial activity against Staphylococcus aureus- and Pseudomonas aeruginosa-resistant strains in a dual-species biofilm in the Lubbock chronic wound biofilm (LCWB) model. The effect of a 630 nm LED, alone or plus 5-aminolevulinic acid (ALAD)-mediated photodynamic therapy (PDT) (ALAD-PDT), or an 880 nm LED on the GO (50 mg/l) action was evaluated by determining the CFU/mg reductions, live/dead analysis, scanning electron microscope observation, and reactive oxygen species assay. Among the LCWBs, the best effect was obtained with GO irradiated with ALAD-PDT, with percentages of CFU/mg reduction up to 78.96% ± 0.21 and 95.17% ± 2.56 for S. aureus and P. aeruginosa, respectively. The microscope images showed a reduction in the cell number and viability when treated with GO + ALAD-PDT. In addition, increased ROS production was detected. No differences were recorded when GO was irradiated with an 880 nm LED versus GO alone. The obtained results suggest that treatment with GO irradiated with ALAD-PDT represents a valid, sustainable strategy to counteract the polymicrobial colonization of chronic wounds.
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Yue C, Wang L, Wang X, Cen R, Chen J, Li L, Yang W, Tan Y, Lei X. In vitro study of the effect of ALA-PDT on Mycobacterium abscessus and its antibiotic susceptibility. Photodiagnosis Photodyn Ther 2022; 38:102802. [PMID: 35297368 DOI: 10.1016/j.pdpdt.2022.102802] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/24/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND The skin infection caused by Mycobacterium abscessus (M. abscessus) is extremely difficult to treat in clinical practice. PDT (photodynamic therapy) is a promising antibacterial treatment. We evaluated the effect of photodynamic therapy using 5-aminolevulinic acid (ALA) as a photosensitizer on M. abscessus and its antibiotic resistance in this study. METHODS M. abscessus and biofilm were treated with different concentrations of ALA and then irradiated with LED light (635 nm, 80 J/cm2), while there were ALA-only group, light-only group, and negative control group. The effects were observed by colony counting, crystal violet staining, confocal laser scanning microscope (CLSM), and scanning electron microscope (SEM). The changes of drug susceptibility of M. abscessus at sublethal doses were detected by micro-broth dilution method, and the possible mechanism was explored by fluorometer and real-time fluorescence quantitative Polymerase Chain Reaction (RT-qPCR). RESULTS ALA-PDT showed a significant killing effect on M. abscessus at ALA concentrations greater than 50 μg/ml and the effect increased with increasing photosensitizer concentrations. ALA-PDT also showed a notable scavenging effect on M. abscessus biofilm, which was also enhanced with increasing ALA concentrations. At sublethal doses, the susceptibility of M. abscessus to antibiotics was increased, and ALA-PDT greatly increased the cell wall permeability of M. abscessus and decreased the mRNA expression of drug resistance genes whiB7 and erm (41), as well as efflux pump genes MAB_1409c and MAB_3142c at the transcriptional level. CONCLUSIONS ALA-PDT has a significant killing effect on M. abscessus and can increase its antibiotic susceptibility.
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Affiliation(s)
- Chenda Yue
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Liqun Wang
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Xiaoyu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering Institute of Chongqing University, Chongqing, China
| | - Ruiyan Cen
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Jinyi Chen
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Lingfei Li
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Weijiang Yang
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Yang Tan
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China
| | - Xia Lei
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing, China.
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Multifunctional Nanoplatforms as a Novel Effective Approach in Photodynamic Therapy and Chemotherapy, to Overcome Multidrug Resistance in Cancer. Pharmaceutics 2022; 14:pharmaceutics14051075. [PMID: 35631660 PMCID: PMC9143284 DOI: 10.3390/pharmaceutics14051075] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/02/2022] [Accepted: 05/14/2022] [Indexed: 12/24/2022] Open
Abstract
It is more than sixty years since the era of modern photodynamic therapy (PDT) for cancer began. Enhanced selectivity for malignant cells with a reduced selectivity for non-malignant cells and good biocompatibility along with the limited occurrence of side effects are considered to be the most significant advantages of PDT in comparison with conventional therapeutic approaches, e.g., chemotherapy. The phenomenon of multidrug resistance, which is associated with drug efflux transporters, was originally identified in relation to the application of chemotherapy. Unfortunately, over the last thirty years, numerous papers have shown that many photosensitizers are the substrates of efflux transporters, significantly restricting the effectiveness of PDT. The concept of a dynamic nanoplatform offers a possible solution to minimize the multidrug resistance effect in cells affected by PDT. Indeed, recent findings have shown that the utilization of nanoparticles could significantly enhance the therapeutic efficacy of PDT. Additionally, multifunctional nanoplatforms could induce the synergistic effect of combined treatment regimens, such as PDT with chemotherapy. Moreover, the surface modifications that are associated with nanoparticle functionalization significantly improve the target potential of PDT or chemo-PDT in multidrug resistant and cancer stem cells.
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Zaitseva SV, Zdanovich SA, Tyurin DV, Koifman OI. Macroheterocyclic μ-Nitrido- and μ-Carbido Dimeric Iron and Ruthenium Complexes as a Molecular Platform for Modeling Oxidative Enzymes (A Review). RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622030160] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Wang X, Wan M, Zhang L, Dai Y, Hai Y, Yue C, Xu J, Ding Y, Wang M, Xie J, Lei X, Zhong JL. ALA_PDT Promotes Ferroptosis-Like Death of Mycobacterium abscessus and Antibiotic Sterilization via Oxidative Stress. Antioxidants (Basel) 2022; 11:antiox11030546. [PMID: 35326196 PMCID: PMC8945036 DOI: 10.3390/antiox11030546] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 02/06/2023] Open
Abstract
Mycobacterium abscessus is one of the common clinical non-tuberculous mycobacteria (NTM) that can cause severe skin infection. 5-Aminolevulinic acid photodynamic therapy (ALA_PDT) is an emerging effective antimicrobial treatment. To explore whether ALA_PDT can be used to treat M. abscessus infections, we conducted a series of experiments in vitro. We found that ALA_PDT can kill M. abscesses. Mechanistically, we found that ALA_PDT promoted ferroptosis-like death of M. abscesses, and the ROS scavenger N-Acetyl-L-cysteine (NAC) and ferroptosis inhibitor Ferrostatin-1 (Fer-1) can mitigate the ALA_PDT-mediated sterilization. Furthermore, ALA_PDT significantly up-regulated the transcription of heme oxygenase MAB_4773, increased the intracellular Fe2+ concentration and altered the transcription of M. abscessus iron metabolism genes. ALA_PDT disrupted the integrity of the cell membrane and enhanced the permeability of the cell membrane, as evidenced by the boosted sterilization effect of antibiotics. In summary, ALA_PDT can kill M. abscesses via promoting the ferroptosis-like death and antibiotic sterilization through oxidative stress by changing iron metabolism. The study provided new mechanistic insights into the clinical efficacy of ALA_PDT against M. abscessus.
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Affiliation(s)
- Xiaoyu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China; (X.W.); (M.W.); (Y.D.); (M.W.)
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing 400044, China;
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
| | - Meiyin Wan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China; (X.W.); (M.W.); (Y.D.); (M.W.)
| | - Lei Zhang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
| | - Yongdong Dai
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
| | - Yang Hai
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
| | - Chenda Yue
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing 400044, China;
| | - Junqi Xu
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
| | - Yadan Ding
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China; (X.W.); (M.W.); (Y.D.); (M.W.)
| | - Mei Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China; (X.W.); (M.W.); (Y.D.); (M.W.)
| | - Jianping Xie
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Ministry of Education Eco-Environment of the Three Gorges Reservoir Region, College of Life and Sciences, Southwest University, Chongqing 400700, China; (L.Z.); (Y.D.); (Y.H.); (J.X.)
- Correspondence: (J.X.); (X.L.); (J.-L.Z.); Tel.: +86-23-68253392 (J.X.)
| | - Xia Lei
- Department of Dermatology, Daping Hospital, The Army Medical University, Chongqing 400044, China;
- Correspondence: (J.X.); (X.L.); (J.-L.Z.); Tel.: +86-23-68253392 (J.X.)
| | - Julia-Li Zhong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China; (X.W.); (M.W.); (Y.D.); (M.W.)
- Correspondence: (J.X.); (X.L.); (J.-L.Z.); Tel.: +86-23-68253392 (J.X.)
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Comparison between Single and Multi-LED Emitters for Photodynamic Therapy: An In Vitro Study on Enterococcus faecalis and Human Gingival Fibroblasts. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19053048. [PMID: 35270740 PMCID: PMC8910628 DOI: 10.3390/ijerph19053048] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/02/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022]
Abstract
Aim of the study: The aim was to evaluate the effects of two LED devices, TL-01 and TL-03 in photodynamic therapy (PDT), on Enterococcus faecalis and on human gingival fibroblasts (HGFs). TL-01, characterized by a single emitter, irradiates one periodontal site at a time, whereas the multi-led device (TL-03) irradiates all vestibular sites of a single arch at a time. Methods: E. faecalis bacterial suspensions and HGFs were incubated for 45 min with Aladent gel (ALAD) containing 5-aminolevulinic acid and then exposed to LED devices (ALAD-PDT), having different distance and timing of irradiation (TL-01 N (0.5 mm, for 7 min), TL-03 N (0.5 mm, 15 min) and TL-03 F (30.0 mm, 15 min)). For bacterial suspension, the colony forming units and the live/dead staining were evaluated after 24 h, while the protoporphyrin IX (PpIX) content was monitored in all phases of the experimentation. For HGFs, the cell viability, proliferation, cell morphology, and adhesion were evaluated at 24 h. Results: Both TL-01 and TL-03 showed a significant reduction of bacterial load. The photoinactivation was inversely proportional to the PpIX accumulation. TL-01 and TL-03 promoted proliferation and adhesion of HGFs. Conclusions: Both tested devices for ALAD-PDT were equally effective in significantly reducing Enterococcus faecalis growth and in promoting HGFs proliferation and adhesion, in vitro.
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Delcanale P, Abbruzzetti S, Viappiani C. Photodynamic treatment of pathogens. LA RIVISTA DEL NUOVO CIMENTO 2022; 45:407-459. [PMCID: PMC8921710 DOI: 10.1007/s40766-022-00031-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/10/2022] [Indexed: 06/01/2023]
Abstract
The current viral pandemic has highlighted the compelling need for effective and versatile treatments, that can be quickly tuned to tackle new threats, and are robust against mutations. Development of such treatments is made even more urgent in view of the decreasing effectiveness of current antibiotics, that makes microbial infections the next emerging global threat. Photodynamic effect is one such method. It relies on physical processes proceeding from excited states of particular organic molecules, called photosensitizers, generated upon absorption of visible or near infrared light. The excited states of these molecules, tailored to undergo efficient intersystem crossing, interact with molecular oxygen and generate short lived reactive oxygen species (ROS), mostly singlet oxygen. These species are highly cytotoxic through non-specific oxidation reactions and constitute the basis of the treatment. In spite of the apparent simplicity of the principle, the method still has to face important challenges. For instance, the short lifetime of ROS means that the photosensitizer must reach the target within a few tens nanometers, which requires proper molecular engineering at the nanoscale level. Photoactive nanostructures thus engineered should ideally comprise a functionality that turns the system into a theranostic means, for instance, through introduction of fluorophores suitable for nanoscopy. We discuss the principles of the method and the current molecular strategies that have been and still are being explored in antimicrobial and antiviral photodynamic treatment.
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Affiliation(s)
- Pietro Delcanale
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
| | - Stefania Abbruzzetti
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
| | - Cristiano Viappiani
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
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Wang D, Kuzma ML, Tan X, He TC, Dong C, Liu Z, Yang J. Phototherapy and optical waveguides for the treatment of infection. Adv Drug Deliv Rev 2021; 179:114036. [PMID: 34740763 PMCID: PMC8665112 DOI: 10.1016/j.addr.2021.114036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/11/2021] [Accepted: 10/28/2021] [Indexed: 02/07/2023]
Abstract
With rapid emergence of multi-drug resistant microbes, it is imperative to seek alternative means for infection control. Optical waveguides are an auspicious delivery method for precise administration of phototherapy. Studies have shown that phototherapy is promising in fighting against a myriad of infectious pathogens (i.e. viruses, bacteria, fungi, and protozoa) including biofilm-forming species and drug-resistant strains while evading treatment resistance. When administered via optical waveguides, phototherapy can treat both superficial and deep-tissue infections while minimizing off-site effects that afflict conventional phototherapy and pharmacotherapy. Despite great therapeutic potential, exact mechanisms, materials, and fabrication designs to optimize this promising treatment option are underexplored. This review outlines principles and applications of phototherapy and optical waveguides for infection control. Research advances, challenges, and outlook regarding this delivery system are rigorously discussed in a hope to inspire future developments of optical waveguide-mediated phototherapy for the management of infection and beyond.
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Affiliation(s)
- Dingbowen Wang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Michelle Laurel Kuzma
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xinyu Tan
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; Academy of Orthopedics, Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong Province 510280, China
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL 60637, USA; Department of Surgery, The University of Chicago Medical Center, Chicago, IL 60637, USA
| | - Cheng Dong
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Zhiwen Liu
- Department of Electrical Engineering, Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jian Yang
- Department of Biomedical Engineering, Materials Research Institute, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA.
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The inhibitory activity of 5-aminolevulinic acid photodynamic therapy (ALA-PDT) on Candida albicans biofilms. Photodiagnosis Photodyn Ther 2021; 34:102271. [PMID: 33785444 DOI: 10.1016/j.pdpdt.2021.102271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/26/2021] [Accepted: 03/22/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Biofilm-associated Candida albicans (C. albicans) infections are hard to cure due to their high levels of resistance to antifungal agents. Photodynamic therapy (PDT) is a promising approach for controlling infections caused by C. albicans. This study was designed to explore the inhibitory activity of PDT using 5-aminolevulinic acid (ALA) as photosensitizer against C. albicans biofilms. METHODS C. albicans cell suspensions were incubated for 48 h to form mature biofilms. ALA solution was diluted to 15 mM and incubated with C. albicans biofilms for 5 h before irradiated by red light semiconductor laser under the light intensity of 300 J/cm2 and fluence rate of 100 mW/cm2 for 50 min. The inhibitory activity was evaluated from subcellular level, molecular level and transcriptional level using transmission electron microscopy (TEM) observation, flow cytometry analysis and quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) assays, respectively. RESULTS From subcellular level, the degraded content of the cytoplasm, nuclear condensation and mitochondrial swelling were observed after ALA-PDT. From molecular level, ALA-PDT resulted in 19.4 % cell apoptosis. From transcriptional level, ALA-PDT significantly reduced the mRNA expressions of hyphae-specific genes (HWP1 and ALS3) and long-term biofilm maintenance genes (UME6 and HGC1), whereas ALA or red light alone had no significant effect. CONCLUSIONS The inhibitory activity indicated that ALA-PDT may have the potential to serve as an antifungal strategy in eliminatingC. albicans biofilms.
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Photoinactivation of mycobacteria to combat infection diseases: current state and perspectives. Appl Microbiol Biotechnol 2021; 105:4099-4109. [PMID: 33997929 PMCID: PMC8126513 DOI: 10.1007/s00253-021-11349-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/04/2021] [Accepted: 05/09/2021] [Indexed: 12/11/2022]
Abstract
Abstract The spread of multi-drug-resistant bacterial strains causing serious infectious diseases dictates the development of new approaches to combat these diseases. In addition to drug resistance, the important causative agent of tuberculosis (Mycobacterium tuberculosis (Mtb)) is able to persist asymptomatically in individuals for many years, causing latent forms of tuberculosis. In such a dormant state, Mtb cells are also resistant to known antibiotics. In this regard, photodynamic inactivation (PDI) could be an effective alternative to antibiotics as its action is based on the generation of active forms of oxygen independently on the presence of specific antibiotic targets, thereby inactivating both drug-resistant and dormant bacteria. In this review, we summarise examples of the application of PDI for the elimination of representatives of the genus Mycobacteria, both in vitro and in vivo. According to published results, including photosensitisers in the PDI regime results in a significantly higher lethal effect. Such experiments were mainly performed using chemically synthesised photosensitisers, which need to be transported to the areas of bacterial infections, limiting PDI usage by surface (skin) diseases. In this regard, endogenous photosensitisers (mainly porphyrins) could be used to solve the problem of transportation. In vitro experiments demonstrate the effective application of PDI for mycobacteria, including Mtb, using endogenous porphyrins; the intracellular contents of these substances can be elevated by administration of 5-aminolevulenic acid, a precursor of porphyrin synthesis. Photodynamic inactivation can also be used for dormant mycobacteria, which are characterised by high levels of endogenous porphyrins. Thus, PDI can effectively eliminate drug-resistant mycobacteria. The exploitation of modern light-transmitting techniques opens new possibilities to use PDI in clinical settings. Key points •The potential effects of photodynamic inactivation of mycobacteria are critically reviewed. •Approaches to photoinactivation of mycobacteria using exogenous and endogenous photosensitisers are described. •Prospects for the use of photodynamic inactivation in the treatment of tuberculosis are discussed.
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Krizek J, Lavickova B, Moser C. Degradation study on molecules released from laser-based jet injector. Int J Pharm 2021; 602:120664. [PMID: 33933639 DOI: 10.1016/j.ijpharm.2021.120664] [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: 11/26/2020] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 12/16/2022]
Abstract
Development of needle-free methods to administer injectable therapeutics has been researched for a few decades. We focused our attention on a laser-based jet injection technique where the liquid-jet actuation mechanism is based on optical cavitation. This study investigates the potential damage to therapeutic molecules which are exposed to nanosecond laser pulses in the configuration of a compact laser-based jet injection device. Implementation of a pulsed laser source at 1574 nm wavelength allowed us to generate jets from pure water solutions and circumvent the need to reformulate therapeutics with absorbing dyes. We performed H1-NMR analysis on exposed samples of Lidocaine and δ-Aminolevulinic acid. We made several tests with linear and plasmid DNA to assess the structural integrity and functional potency after ejection with our device. The tests showed no significant degradation or detectable side products, which is promising for further development and eventually clinical applications.
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Affiliation(s)
- Jan Krizek
- School of Engineering, Laboratory of Applied Photonics Devices, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland.
| | - Barbora Lavickova
- School of Engineering, Laboratory of Biological Network Characterisation, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland
| | - Christophe Moser
- School of Engineering, Laboratory of Applied Photonics Devices, Swiss Federal Institute of Technology in Lausanne (EPFL), Station 17, 1015 Lausanne, Switzerland.
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Fantoni NZ, Brown T, Kellett A. DNA-Targeted Metallodrugs: An Untapped Source of Artificial Gene Editing Technology. Chembiochem 2021; 22:2184-2205. [PMID: 33570813 DOI: 10.1002/cbic.202000838] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/09/2021] [Indexed: 12/20/2022]
Abstract
DNA binding metal complexes are synonymous with anticancer drug discovery. Given the array of structural and chemical reactivity properties available through careful design, metal complexes have been directed to bind nucleic acid structures through covalent or noncovalent binding modes. Several recognition modes - including crosslinking, intercalation, and oxidation - are central to the clinical success of broad-spectrum anticancer metallodrugs. However, recent progress in nucleic acid click chemistry coupled with advancement in our understanding of metal complex-nucleic acid interactions has opened up new avenues in genetic engineering and targeted therapies. Several of these applications are enabled by the hybridisation of oligonucleotide or polyamine probes to discrete metal complexes, which facilitate site-specific reactivity at the nucleic acid interface under the guidance of the probe. This Review focuses on recent advancements in hybrid design and, by way of an introduction to this topic, we provide a detailed overview of nucleic acid structures and metal complex-nucleic acid interactions. Our aim is to provide readers with an insight on the rational design of metal complexes with DNA recognition properties and an understanding of how the sequence-specific targeting of these interactions can be achieved for gene engineering applications.
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Affiliation(s)
- Nicolò Zuin Fantoni
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Tom Brown
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for, Cellular Biotechnology and Nano Research Facility, Dublin City University, Glasnevin, Dublin, 9, Ireland
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Soopramanien M, Khan N, Neerooa BNHM, Sagathevan K, Siddiqui R. Gut Bacteria of Columbia livia Are a Potential Source of Anti-Tumour Molecules. Asian Pac J Cancer Prev 2021; 22:733-740. [PMID: 33773536 PMCID: PMC8286664 DOI: 10.31557/apjcp.2021.22.3.733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Indexed: 12/11/2022] Open
Abstract
Objectives: The overall aim was to determine whether gut bacteria of Columbia livia are a potential source of antitumour molecules. Methods: Faecal and gut microbiota of Columbia livia were isolated, identified and conditioned media were prepared containing metabolites. Growth inhibition, lactate dehydrogenase cytotoxicity and cell survival assays were accomplished against cervical cancer cells. Next, liquid-chromatography mass spectrometry was conducted to elucidate the molecules present. Results: A plethora of bacteria from faecal matter and gastrointestinal tract were isolated. Selected conditioned media exhibited potent anticancer effects and displayed cytotoxicity to cervical cancer cells at IC50 concentration of 10.65 and 15.19 µg/ml. Moreover, cells treated with conditioned media exhibited morphological changes, including cell shrinking and rounding; indicative of apoptosis, when compared to untreated cells. A total of 111 and 71 molecules were revealed from these gut and faecal metabolites. The identity of 60 molecules were revealed including, dihydroxymelphalan. Nonetheless, 122 molecules remain unidentified and are the subject of future studies. Conclusion: These findings suggest that gut bacteria of Columbia livia possess molecules, which may have anticancer activities. Further in silico testing and/or high throughput screening will determine potential anticancer properties of these molecules.
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Affiliation(s)
| | - Naveed Khan
- Department of Clinical Sciences, College of Medicine, University of Sharjah, University City, Sharjah, United Arab Emirates
| | | | | | - Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, University City, Sharjah, United Arab Emirates
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Shleeva M, Savitsky A, Kaprelyants A. Corynebacterium jeikeium Dormant Cell Formation and Photodynamic Inactivation. Front Microbiol 2020; 11:605899. [PMID: 33391228 PMCID: PMC7775403 DOI: 10.3389/fmicb.2020.605899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/30/2020] [Indexed: 11/18/2022] Open
Abstract
Pathogenic non-spore forming bacteria enter a dormant state under stressful conditions, which likely allows them to acquire resistance to various antibiotics. This work revealed the efficient formation of dormant "non-culturable" (NC) Corynebacterium jeikeium cells in stationary phase upon gradual acidification of the growth medium. Such cells were unable to form colonies and existed in a prolonged stationary phase. At an early stage of dormancy (approximately 14 days post-inoculation), dormant cells are able for resuscitation in liquid medium. However, those stored for long time in dormant state needed addition of supernatant taking from active C. jeikeium cultures for successful resuscitation. NC cells possessed low RNA synthesis and significant tolerance to antibiotics (rifampicin and vancomycin). They also accumulated free porphyrins, and 5-aminolevulinic acid addition enhanced free porphyrin accumulation which makes them potentially sensitive to photodynamic inactivation (PDI). PDI of dormant bacteria was accomplished by exposing cells to a 565 nm wavelength of light using a SOLIS-4C light-emitting diode for 60 min. This revealed that increased porphyrin concentrations were correlated with elevated PDI sensitivity. Results shown here demonstrate the potential utility of employing PDI to minimize levels of dormant, persistent corynebacteria and the C. jeikeium dormancy model developed here may be useful for finding new drugs and techniques for combatting persistent corynebacteria.
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Affiliation(s)
- Margarita Shleeva
- Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, A.N. Bach Institute of Biochemistry, Moscow, Russia
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Mizuno M, Mitsui H, Kajiyama H, Teshigawara T, Inoue K, Takahashi K, Ishii T, Ishizuka M, Nakajima M, Kikkawa F. Efficacy of 5-aminolevulinic acid and LED photodynamic therapy in cervical intraepithelial neoplasia: A clinical trial. Photodiagnosis Photodyn Ther 2020; 32:102004. [PMID: 33022421 DOI: 10.1016/j.pdpdt.2020.102004] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/12/2020] [Accepted: 08/31/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND 5-Aminolaevulinic acid (5ALA) is a precursor of the strong sensitizer protoporphyrin IX (PpIX) in the heme synthesis pathway. We conducted aclinical trial designed to evaluate the efficacy and safety of 5ALA photodynamic therapy (PDT) using a light-emitting diode (LED) in patients with cervical intraepithelial neoplasia (CIN). METHODS Data for 51 CIN patients who underwent 5ALA-PDT between 2012 and 2017 were prospectively analysed. After a 20 % 5ALA jelly formulation was topically applied to the cervix, the region was irradiated with red light at approximately 633 nm to excite PpIX for treatment. We estimated outcomes by cytology, pathology, and human papilloma virus (HPV) testing after PDT. RESULTS Patients underwent two PDT sessions at one-week intervals during outpatient treatment and achieved favourable results without photosensitivity and severe adverse events. Over a long follow-up period, 96.1 % of all patients showed some positive effects, including approximately 70 % with a complete response (CR), 10 % with a partial response, and 15 % with downgrades. The HPV clearance rate in patients with CR was 79.4 %. Recurrence occurred in five patients who mostly remained HPV-positive after PDT. CONCLUSIONS Based on our study, topical 5ALA-PDT using an LED light source potentially represents a safe treatment for CIN on an outpatient basis.
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Affiliation(s)
- Mika Mizuno
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsuruma-cho 65, Showa-ku, Nagoya 466-8550, Japan; Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University 8-35-1 Sakuragaoka, Kagoshima City, 890-8520, Japan.
| | - Hiroko Mitsui
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsuruma-cho 65, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsuruma-cho 65, Showa-ku, Nagoya 466-8550, Japan
| | - Toshiya Teshigawara
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsuruma-cho 65, Showa-ku, Nagoya 466-8550, Japan
| | - Katsushi Inoue
- SBI Pharmaceuticals Co., Ltd., Izumi Garden Tower 19F, Roppongi 1-6-1, Minato-ku, Tokyo 106-6020, Japan
| | - Kiwamu Takahashi
- SBI Pharmaceuticals Co., Ltd., Izumi Garden Tower 19F, Roppongi 1-6-1, Minato-ku, Tokyo 106-6020, Japan
| | - Takuya Ishii
- SBI Pharmaceuticals Co., Ltd., Izumi Garden Tower 19F, Roppongi 1-6-1, Minato-ku, Tokyo 106-6020, Japan
| | - Masahiro Ishizuka
- SBI Pharmaceuticals Co., Ltd., Izumi Garden Tower 19F, Roppongi 1-6-1, Minato-ku, Tokyo 106-6020, Japan
| | - Motowo Nakajima
- SBI Pharmaceuticals Co., Ltd., Izumi Garden Tower 19F, Roppongi 1-6-1, Minato-ku, Tokyo 106-6020, Japan
| | - Fumitaka Kikkawa
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsuruma-cho 65, Showa-ku, Nagoya 466-8550, Japan
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Naouri A, Djemoui A, Ouahrani MR, Lahrech MB, Lemouari N, Rocha DH, Albuquerque H, Mendes RF, Almeida Paz FA, Helguero LA, Bachari K, Talhi O, Silva AM. Multicomponent and 1,3-dipolar cycloaddition synthesis of triazole- and isoxazole-acridinedione/xanthenedione heterocyclic hybrids: Cytotoxic effects on human cancer cells. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128325] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Ibrahim HA, Refaat HM. Versatile mechanisms of 2-substituted benzimidazoles in targeted cancer therapy. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00048-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Abstract
Background
The aim of this review is to provide an overview on diverse anticancer activities of 2-substituted benzimidazole derivatives.
Main body
This review provides a correlation between the various mechanisms of action of benzimidazoles as anticancer and the substitution pattern around the nucleus.
Conclusion
The linker group and substitution at N-1, C-2, C-5, and C-6 positions have been found to be the most contributory factors for anticancer activity. This will help in the further design to afford more selective, potent, and multi-target anticancer of 2-substituted benzimidazole-based compounds.
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Sitte E, Senge MO. The Red Color of Life Transformed - Synthetic Advances and Emerging Applications of Protoporphyrin IX in Chemical Biology. European J Org Chem 2020; 2020:3171-3191. [PMID: 32612451 PMCID: PMC7319466 DOI: 10.1002/ejoc.202000074] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Indexed: 01/10/2023]
Abstract
Protoporphyrin IX (PPIX) is the porphyrin scaffold of heme b, a ubiquitous prosthetic group of proteins responsible for oxygen binding (hemoglobin, myoglobin), electron transfer (cytochrome c) and catalysis (cytochrome P450, catalases, peroxidases). PPIX and its metallated derivatives frequently find application as therapeutic agents, imaging tools, catalysts, sensors and in light harvesting. The vast toolkit of accessible porphyrin functionalization reactions enables easy synthetic modification of PPIX to meet the requirements for its multiple uses. In the past few years, particular interest has arisen in exploiting the interaction of PPIX and its synthetic derivatives with biomolecules such as DNA and heme-binding proteins to evolve molecular devices with new functions as well as to uncover potential therapeutic toeholds. This review strives to shine a light on the most recent developments in the synthetic chemistry of PPIX and its uses in selected fields of chemical biology.
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Affiliation(s)
- Elisabeth Sitte
- School of ChemistryTrinity College DublinThe University of DublinTrinity Biomedical Sciences Institute152‐160 Pearse Street2DublinIreland
| | - Mathias O. Senge
- School of ChemistryTrinity College DublinThe University of DublinTrinity Biomedical Sciences Institute152‐160 Pearse Street2DublinIreland
- Institute for Advanced Study (TUM‐IAS)Technische Universität MünchenLichtenberg‐Str. 2a85748GarchingGermany
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Bohm GC, Gándara L, Di Venosa G, Mamone L, Buzzola F, Casas A. Photodynamic inactivation mediated by 5-aminolevulinic acid of bacteria in planktonic and biofilm forms. Biochem Pharmacol 2020; 177:114016. [PMID: 32387459 DOI: 10.1016/j.bcp.2020.114016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 05/04/2020] [Indexed: 11/24/2022]
Abstract
Bacterial photodynamic inactivation (PDI) employing endogenous production of porphyrins from 5-aminolevulinic acid (ALA) - named ALA-PDI-, is a new promising tool to achieve bacteria control in non-spread infections. The technique combines the action of the porphyrins acting as photosensitisers with light, to produce reactive oxygen species to target the pathogen. To date, some clinical applications of ALA-PDI have been reported although variable responses ranging from total eradication to absence of photokilling were found. ALA-PDI conducted at suboptimal conditions may lead to misleading results and the complexity of haem synthesis in bacteria hinders the optimization of the treatment. The present work aimed to gain insight on the variables affecting ALA-PDI in Gram-positives and Gram-negatives bacteria growing on planktonic and biofilm cultures and to correlate the degree of the response with the amount and type of porphyrin synthesised. Staphylococcus epidermidis and Escherichia coli clinical isolates and Pseudomonas aeruginosa ATCC27853 and Staphylococcus aureus ATCC25923 strains were utilised, and the optimal conditions of concentration and time exposure of ALA, and light dose were set. In both Gram-positive species analysed, a peak of porphyrin synthesis was observed at 1-2 mM ALA in biofilm and planktonic cultures, which fairly correlated with the decrease in the number of CFU after PDI (5 to 7 logs) and porphyrin content was in the same order of magnitude. In addition, ALA-PDI was similarly effective for planktonic and biofilm S. aureus cultures, and more effective in S. epidermidis planktonic cultures at low light doses. Beyond a certain light dose, it was not possible to achieve further photosensitization. Similarly, a plateau of cell death was attained at a certain ALA incubation time. Accumulation of hydrophilic porphyrins at longer incubation periods was observed. The proportion of porphyrins changed as a function of ALA concentration and incubation time in the Gram-positive bacteria, though we did not find a clear correlation between the porphyrin type and PDI response. As a salient feature was the presence of isococroporphyrin isoforms in both Gram-positive and Gram-negative bacteria. Gram-negative bacteria were quite refractory to the treatment: P. aeruginosa was slightly inactivated (4-logs reduction) at 40 mM ALA, whereas E. coli was not inactivated at all. These species accumulated high ALA quantities and the amount of porphyrins did not correlate with the degree of photoinactivation. Our microscopy studies show that porphyrins are not located in the envelopes of Gram-negative bacteria, reinforcing the hypothesis that endogenous porphyrins fail to attack these structures.
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Affiliation(s)
- Gabriela Cervini Bohm
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires. Córdoba 2351 1er subsuelo, Ciudad de Buenos Aires CP1120AAF, Argentina
| | - Lautaro Gándara
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires. Córdoba 2351 1er subsuelo, Ciudad de Buenos Aires CP1120AAF, Argentina
| | - Gabriela Di Venosa
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires. Córdoba 2351 1er subsuelo, Ciudad de Buenos Aires CP1120AAF, Argentina
| | - Leandro Mamone
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires. Córdoba 2351 1er subsuelo, Ciudad de Buenos Aires CP1120AAF, Argentina
| | - Fernanda Buzzola
- Universidad de Buenos Aires, CONICET, Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM), and Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Buenos Aires, Argentina
| | - Adriana Casas
- Centro de Investigaciones sobre Porfirinas y Porfirias (CIPYP), CONICET and Hospital de Clínicas José de San Martín, Universidad de Buenos Aires. Córdoba 2351 1er subsuelo, Ciudad de Buenos Aires CP1120AAF, Argentina.
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Usman B, Sharma N, Satija S, Mehta M, Vyas M, Khatik GL, Khurana N, Hansbro PM, Williams K, Dua K. Recent Developments in Alpha-Glucosidase Inhibitors for Management of Type-2 Diabetes: An Update. Curr Pharm Des 2020; 25:2510-2525. [PMID: 31333110 DOI: 10.2174/1381612825666190717104547] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/12/2019] [Indexed: 12/11/2022]
Abstract
The incidence of diabetes has increased globally in recent years and figures of diabetic patients were estimated to rise up to 642 million by 2040. The disorder is accompanied with various complications if not managed at the early stages, and interlinked high mortality rate and morbidity with time. Different classes of drugs are available for the management of type 2 diabetes but were having certain limitations of their safety. Alphaglucosidase is a family of enzyme originated from the pancreas which plays a role in the anabolism of 80-90% of carbohydrate consumed into glucose. This glucose is absorbed into the blood and results in frank postprandial hyperglycemia and worsens the conditions of diabetic patients which precipitate complications. Inhibition of these enzymes helps to prevent postprandial hyperglycemia and the formation of glycated end products. Alphaglucosidase inhibitors are reported to be more important in adequate control of type 2, but marketed drugs have various side effects, such as poor patient compliance and also expensive. This proves the needs for other class of drugs with better efficacy, safety, patient compliance and economic. In this review, we have emphasized the recent advances in the field of new alpha-glucosidase inhibitors with improved safety and pharmacological profile.
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Affiliation(s)
- Bashir Usman
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Neha Sharma
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Saurabh Satija
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Meenu Mehta
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Manish Vyas
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Gopal L Khatik
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara, Punjab (144411), India
| | - Philip M Hansbro
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo NSW 2007, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Kylie Williams
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo NSW 2007, Australia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo NSW 2007, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, NSW 2308, Australia
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Aggarwal R, Targhotra M, Kumar B, Sahoo PK, Chauhan MK. Treatment and management strategies of onychomycosis. J Mycol Med 2020; 30:100949. [PMID: 32234349 DOI: 10.1016/j.mycmed.2020.100949] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/15/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
Onychomycosis is one of the most prevalent and severe nail fungal infections, which is affecting a wide population across the globe. It leads to variations like nail thickening, disintegration and hardening. Oral and topical drug delivery systems are the most desirable in treating onychomycosis, but the efficacy of the results is low, resulting in a relapse rate of 25-30%. Due to systemic toxicity and various other disadvantages associated with oral therapy like gastrointestinal, hepatotoxicity, topical therapy is commonly used. Topical therapy improves patient compliance and reduces the cost of treatment. However, due to poor penetration of topical therapy across the nail plate, research is focused on different chemical, mechanical and physical methods to improve drug delivery. Penetration enhancers like Thioglycolic acid, Hydroxypropyl-β-cyclodextrin (HP-β-CD), Sodium lauryl sulfate (SLS), carbocysteine, N-acetylcysteine etc. have shown results enhancing the drug penetration across the nail plate. Results with physical techniques such as iontophoresis, laser and Photodynamic therapy are quite promising, but the long-term suitability of these devices is in need to be determined. In this article, a brief analysis of the treatment procedures, factors affecting drug permeation across nail plate, chemical, mechanical and physical devices used to increase the drug delivery through nails for the onychomycosis management has been achieved.
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Affiliation(s)
- R Aggarwal
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli - Badarpur Rd, Sector 3, Pushp Vihar, New Delhi 110017, India.
| | - M Targhotra
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli - Badarpur Rd, Sector 3, Pushp Vihar, New Delhi 110017, India
| | - B Kumar
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli - Badarpur Rd, Sector 3, Pushp Vihar, New Delhi 110017, India
| | - P K Sahoo
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli - Badarpur Rd, Sector 3, Pushp Vihar, New Delhi 110017, India
| | - M K Chauhan
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Mehrauli - Badarpur Rd, Sector 3, Pushp Vihar, New Delhi 110017, India
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Liraglutide Protects Against Brain Amyloid-β 1-42 Accumulation in Female Mice with Early Alzheimer's Disease-Like Pathology by Partially Rescuing Oxidative/Nitrosative Stress and Inflammation. Int J Mol Sci 2020; 21:ijms21051746. [PMID: 32143329 PMCID: PMC7084254 DOI: 10.3390/ijms21051746] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 02/23/2020] [Accepted: 02/28/2020] [Indexed: 12/14/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia worldwide, being characterized by the deposition of senile plaques, neurofibrillary tangles (enriched in the amyloid beta (Aβ) peptide and hyperphosphorylated tau (p-tau), respectively) and memory loss. Aging, type 2 diabetes (T2D) and female sex (especially after menopause) are risk factors for AD, but their crosslinking mechanisms remain unclear. Most clinical trials targeting AD neuropathology failed and it remains incurable. However, evidence suggests that effective anti-T2D drugs, such as the GLP-1 mimetic and neuroprotector liraglutide, can be also efficient against AD. Thus, we aimed to study the benefits of a peripheral liraglutide treatment in AD female mice. We used blood and brain cortical lysates from 10-month-old 3xTg-AD female mice, treated for 28 days with liraglutide (0.2 mg/kg, once/day) to evaluate parameters affected in AD (e.g., Aβ and p-tau, motor and cognitive function, glucose metabolism, inflammation and oxidative/nitrosative stress). Despite the limited signs of cognitive changes in mature female mice, liraglutide only reduced their cortical Aβ1–42 levels. Liraglutide partially attenuated brain estradiol and GLP-1 and activated PKA levels, oxidative/nitrosative stress and inflammation in these AD female mice. Our results support the earlier use of liraglutide as a potential preventive/therapeutic agent against the accumulation of the first neuropathological features of AD in females.
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Huang J, Guo M, Jin S, Wu M, Yang C, Zhang G, Wang P, Ji J, Zeng Q, Wang X, Wang H. Antibacterial photodynamic therapy mediated by 5-aminolevulinic acid on methicillin-resistant Staphylococcus aureus. Photodiagnosis Photodyn Ther 2019; 28:330-337. [DOI: 10.1016/j.pdpdt.2019.09.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/10/2019] [Accepted: 09/27/2019] [Indexed: 12/11/2022]
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41
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Experimental and theoretical studies of imidazole based chemosensor for Palladium and their biological applications. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.112092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Wiehe A, O'Brien JM, Senge MO. Trends and targets in antiviral phototherapy. Photochem Photobiol Sci 2019; 18:2565-2612. [PMID: 31397467 DOI: 10.1039/c9pp00211a] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Photodynamic therapy (PDT) is a well-established treatment option in the treatment of certain cancerous and pre-cancerous lesions. Though best-known for its application in tumor therapy, historically the photodynamic effect was first demonstrated against bacteria at the beginning of the 20th century. Today, in light of spreading antibiotic resistance and the rise of new infections, this photodynamic inactivation (PDI) of microbes, such as bacteria, fungi, and viruses, is gaining considerable attention. This review focuses on the PDI of viruses as an alternative treatment in antiviral therapy, but also as a means of viral decontamination, covering mainly the literature of the last decade. The PDI of viruses shares the general action mechanism of photodynamic applications: the irradiation of a dye with light and the subsequent generation of reactive oxygen species (ROS) which are the effective phototoxic agents damaging virus targets by reacting with viral nucleic acids, lipids and proteins. Interestingly, a light-independent antiviral activity has also been found for some of these dyes. This review covers the compound classes employed in the PDI of viruses and their various areas of use. In the medical area, currently two fields stand out in which the PDI of viruses has found broader application: the purification of blood products and the treatment of human papilloma virus manifestations. However, the PDI of viruses has also found interest in such diverse areas as water and surface decontamination, and biosafety.
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Affiliation(s)
- Arno Wiehe
- biolitec research GmbH, Otto-Schott-Str. 15, 07745 Jena, Germany. and Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Jessica M O'Brien
- Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St. James's Hospital, Dublin 8, Ireland.
| | - Mathias O Senge
- Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St. James's Hospital, Dublin 8, Ireland.
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43
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Expanding the applications of microneedles in dermatology. Eur J Pharm Biopharm 2019; 140:121-140. [DOI: 10.1016/j.ejpb.2019.05.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/14/2022]
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44
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Porphyrinoid photosensitizers mediated photodynamic inactivation against bacteria. Eur J Med Chem 2019; 175:72-106. [PMID: 31096157 DOI: 10.1016/j.ejmech.2019.04.057] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/27/2018] [Accepted: 04/19/2019] [Indexed: 12/28/2022]
Abstract
The multi-drug resistant bacteria have become a serious problem complicating therapies to such a degree that often the term "post-antibiotic era" is applied to describe the situation. The infections with methicillin-resistant S. aureus, vancomycin-resistant E. faecium, third generation cephalosporin-resistant E. coli, third generation cephalosporin-resistant K. pneumoniae and carbapenem-resistant P. aeruginosa have become commonplace. Thus, the new strategies of infection treatment have been searched for, and one of the approaches is based on photodynamic antimicrobial chemotherapy. Photodynamic protocols require the interaction of photosensitizer, molecular oxygen and light. The aim of this review is to provide a comprehensive overview of photodynamic antimicrobial chemotherapy by porphyrinoid photosensitizers. In the first part of the review information on the mechanism of photodynamic action and the mechanism of the bacteria resistance to the photodynamic technique were described. In the second one, it was described porphyrinoids photosensitizers like: porphyrins, chlorins and phthalocyanines useable in photodynamic bacteria inactivation.
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Pu H, Liu N, Yu J, Yang Y, Sun Y, Peng Y, Xie S, Luo J, Dong L, Chen H, Sun Y. Micropipette Aspiration of Single Cells for Both Mechanical and Electrical Characterization. IEEE Trans Biomed Eng 2019; 66:3185-3191. [PMID: 30835206 DOI: 10.1109/tbme.2019.2901763] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cellular physical properties have been identified to reflect cell states. Existing techniques are able to characterize either mechanical or electrical properties of a cell. This paper presents a micropipette aspiration technique that enables the characterization of both mechanical (instantaneous elastic modulus, equilibrium elastic modulus, and viscosity), and electrical (specific membrane capacitance) properties of the same single cell. Two bladder cancer cell lines (RT4 and T24) with different metastatic potential were used to evaluate the technique. The results showed that high-grade bladder cancer cells (T24, grade III) possess lower viscosity, lower elastic modulus, and larger SMC than the low-grade cancer cells (RT4, grade I). The Naive Bayes classifier was utilized to assess the classification accuracy using single-physical and multi-physical parameters. The classification results confirmed that the use of multi-biophysical parameters resulted in higher accuracy (97.5%), sensitivity (100%), and specificity (95.2%) than the use of a single-physical parameter for distinguishing T24 and RT4 cells.
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Dong X, Bond AE, Pan N, Coleman M, Tang Y, Sun YP, Yang L. Synergistic photoactivated antimicrobial effects of carbon dots combined with dye photosensitizers. Int J Nanomedicine 2018; 13:8025-8035. [PMID: 30568443 PMCID: PMC6267493 DOI: 10.2147/ijn.s183086] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Carbon quantum dots (CDots) have recently been reported as a new class of visible light activated antimicrobial nanomaterials. This study reports the synergistic photoactivated antimicrobial interactions of CDots with photosensitizers on bacterial cells. METHODS The antimicrobial effects of the CDots with surface passivation molecules 2,2'-(ethylenedioxy)bis(ethylamine) in combination with photosensitizer methylene blue (MB) or toluidine blue (TB) at various concentrations were evaluated against Escherichia coli cells with and without 1-hour visible light illumination. The broth microdilution checkerboard method and isobologram analysis were used for determining if synergistic effect existed between CDots and MB or TB. RESULTS The results showed that CDots alone at a concentration of 5 μg/mL did not display antimicrobial effects, 1 μg/mL MB alone only decreased 1.86 log of viable cell numbers, but the combination treatment with 5 μg/mL CDots combined with 1 μg/mL MB completely inhibited bacteria growth, resulted in 6.2 log viable cell number reduction, suggesting synergistic interaction between the two. The antimicrobial effects of CDots/TB combination exhibited similarly synergistic effects on E. coli cells. These synergistic effects between CDots and MB or TB were further confirmed using the checkerboard microdilution methods, where the fractional inhibitory concentration index value (0.5) and the isobologram analyses. The synergistic interactions were also correlated to the increased generation of intracellular reactive oxygen species in E. coli cells upon the combination treatments of CDots/MB or CDots/TB. CONCLUSION The study demonstrated the synergistic photoactivated antimicrobial effects of CDots in combination with other photosensitizers. Such synergistic effect may open new strategies for developing highly effective antimicrobial methods.
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Affiliation(s)
- Xiuli Dong
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
| | - Ambrose E Bond
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
| | - Nengyu Pan
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Montrez Coleman
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Yongan Tang
- Department of Mathematics and Physics, North Carolina Central University, Durham, NC, USA
| | - Ya-Ping Sun
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Liju Yang
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
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Mitochondria localizing high-spin iron complexes of curcumin for photo-induced drug release. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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48
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Lechuga GC, Pereira MCS, Bourguignon SC. Heme metabolism as a therapeutic target against protozoan parasites. J Drug Target 2018; 27:767-779. [DOI: 10.1080/1061186x.2018.1536982] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Guilherme Curty Lechuga
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Mirian C. S. Pereira
- Fundação Oswaldo Cruz, Laboratório de Ultraestrutura Celular, Rio de Janeiro, Brazil
| | - Saulo C. Bourguignon
- Laboratório de Interação celular e molecular, Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Rua Outeiro São João Batista, Rio de Janeiro, Brazil
- Instituto de Biologia, Programa de Pós-graduação em Ciências e Biotecnologia (PPBI), Universidade Federal Fluminense, Rio de Janeiro, Brazil
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Sehgal SA, Hammad MA, Tahir RA, Akram HN, Ahmad F. Current Therapeutic Molecules and Targets in Neurodegenerative Diseases Based on in silico Drug Design. Curr Neuropharmacol 2018; 16:649-663. [PMID: 29542412 PMCID: PMC6080102 DOI: 10.2174/1570159x16666180315142137] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 01/01/2018] [Accepted: 03/02/2018] [Indexed: 12/20/2022] Open
Abstract
Abstract: Background As the number of elderly persons increases, neurodegenerative diseases are becoming ubiquitous. There is currently a great need for knowledge concerning management of old-age neurodegenerative diseases; the most important of which are: Alzheimer’s disease, Parkinson’s disease, Amyotrophic Lateral Sclerosis, and Huntington’s disease. Objective To summarize the potential of computationally predicted molecules and targets against neurodegenerative diseases. Method Review of literature published since 1997 against neurodegenerative diseases, utilizing as keywords: in silico, Alzheimer’s disease, Parkinson’s disease, Amyotrophic Lateral Sclerosis ALS, and Huntington’s disease was conducted. Results and Conclusion Due to the costs associated with experimentation and current ethical law, performing experiments directly on living organisms has become much more difficult. In this scenario, in silico techniques have been successful and have become powerful tools in the search to cure disease. Researchers use the Computer Aided Drug Design pipeline which: 1) generates 3-dimensional structures of target proteins through homology modeling 2) achieves stabilization through molecular dynamics simulation, and 3) exploits molecular docking through large compound libraries. Next generation sequencing is continually producing enormous amounts of raw sequence data while neuroimaging is producing a multitude of raw image data. To solve such pressing problems, these new tools and algorithms are required. This review elaborates precise in silico tools and techniques for drug targets, active molecules, and molecular docking studies, together with future prospects and challenges concerning possible breakthroughs in Alzheimer’s, Parkinson’s, Amyotrophic Lateral Sclerosis, and Huntington’s disease.
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Affiliation(s)
- Sheikh Arslan Sehgal
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences; Beijing, China.,Department of Biosciences, COMSATS Institute of Information Technology, Sahiwal, Pakistan.,University of Chinese Academy of Sciences, Beijing, China
| | - Mirza A Hammad
- University of Chinese Academy of Sciences, Beijing, China.,National Laboratory of Biomacromolecules, Institute of Biophysics; Chinese Academy of Sciences; Beijing, China
| | - Rana Adnan Tahir
- Department of Biosciences, COMSATS Institute of Information Technology, Sahiwal, Pakistan.,Beijing Key Laboratory of Separation and Analysis in Biomedical and Pharmaceuticals, Department of Biomedical Engineering, School of Life Sciences, Beijing Institute of Technology, China
| | - Hafiza Nisha Akram
- Department of Environmental Sciences, Quaid-e-Azam University Islamabad, Pakistan
| | - Faheem Ahmad
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
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Alberdi E, Gómez C. Efficiency of methylene blue-mediated photodynamic therapy vs intense pulsed light in the treatment of onychomycosis in the toenails. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2018; 35:69-77. [DOI: 10.1111/phpp.12420] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 08/03/2018] [Accepted: 08/14/2018] [Indexed: 12/21/2022]
Affiliation(s)
| | - Clara Gómez
- Instituto de Química Física Rocasolano; Consejo Superior de Investigaciones Científicas (CSIC); Madrid Spain
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