1
|
Wang S, McCoy CP, Li P, Li Y, Zhao Y, Andrews GP, Wylie MP, Ge Y. Carbon Dots in Photodynamic/Photothermal Antimicrobial Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1250. [PMID: 39120355 PMCID: PMC11314369 DOI: 10.3390/nano14151250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/10/2024]
Abstract
Antimicrobial resistance (AMR) presents an escalating global challenge as conventional antibiotic treatments become less effective. In response, photodynamic therapy (PDT) and photothermal therapy (PTT) have emerged as promising alternatives. While rooted in ancient practices, these methods have evolved with modern innovations, particularly through the integration of lasers, refining their efficacy. PDT harnesses photosensitizers to generate reactive oxygen species (ROS), which are detrimental to microbial cells, whereas PTT relies on heat to induce cellular damage. The key to their effectiveness lies in the utilization of photosensitizers, especially when integrated into nano- or micron-scale supports, which amplify ROS production and enhance antimicrobial activity. Over the last decade, carbon dots (CDs) have emerged as a highly promising nanomaterial, attracting increasing attention owing to their distinctive properties and versatile applications, including PDT and PTT. They can not only function as photosensitizers, but also synergistically combine with other photosensitizers to enhance overall efficacy. This review explores the recent advancements in CDs, underscoring their significance and potential in reshaping advanced antimicrobial therapeutics.
Collapse
Affiliation(s)
| | - Colin P. McCoy
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (S.W.)
| | | | | | | | | | | | - Yi Ge
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (S.W.)
| |
Collapse
|
2
|
Bartusik-Aebisher D, Mytych W, Dynarowicz K, Myśliwiec A, Machorowska-Pieniążek A, Cieślar G, Kawczyk-Krupka A, Aebisher D. Magnetic Resonance Imaging in Breast Cancer Tissue In Vitro after PDT Therapy. Diagnostics (Basel) 2024; 14:563. [PMID: 38473036 DOI: 10.3390/diagnostics14050563] [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: 02/06/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Photodynamic therapy (PDT) is increasingly used in modern medicine. It has found application in the treatment of breast cancer. The most common cancer among women is breast cancer. We collected cancer cells from the breast from the material received after surgery. We focused on tumors that were larger than 10 mm in size. Breast cancer tissues for this quantitative non-contrast magnetic resonance imaging (MRI) study could be seen macroscopically. The current study aimed to present findings on quantitative non-contrast MRI of breast cancer cells post-PDT through the evaluation of relaxation times. The aim of this work was to use and optimize a 1.5 T MRI system. MRI tests were performed using a clinical scanner, namely the OPTIMA MR360 manufactured by General Electric HealthCare. The work included analysis of T1 and T2 relaxation times. This analysis was performed using the MATLAB package (produced by MathWorks). The created application is based on medical MRI images saved in the DICOM3.0 standard. T1 and T2 measurements were subjected to the Shapiro-Wilk test, which showed that both samples belonged to a normal distribution, so a parametric t-test for dependent samples was used to test for between-sample variability. The study included 30 sections tested in 2 stages, with consistent technical parameters. For T1 measurements, 12 scans were performed with varying repetition times (TR) and a constant echo time (TE) of 3 ms. For T2 measurements, 12 scans were performed with a fixed repetition time of 10,000 ms and varying echo times. After treating samples with PpIX disodium salt and bubbling with pure oxygen, PDT irradiation was applied. The cell relaxation time after therapy was significantly shorter than the cell relaxation time before PDT. The cells were exposed to PpIX disodium salt as the administered pharmacological substance. The study showed that the therapy significantly affected tumor cells, which was confirmed by a significant reduction in tumor cell relaxation time on the MRI results.
Collapse
Affiliation(s)
- Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Wiktoria Mytych
- Students English Division Science Club, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland
| | - Angelika Myśliwiec
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland
| | | | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - Aleksandra Kawczyk-Krupka
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland
| |
Collapse
|
3
|
Slavkova M, Tzankov B, Popova T, Voycheva C. Gel Formulations for Topical Treatment of Skin Cancer: A Review. Gels 2023; 9:gels9050352. [PMID: 37232944 DOI: 10.3390/gels9050352] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 05/27/2023] Open
Abstract
Skin cancer, with all its variations, is the most common type of cancer worldwide. Chemotherapy by topical application is an attractive strategy because of the ease of application and non-invasiveness. At the same time, the delivery of antineoplastic agents through the skin is difficult because of their challenging physicochemical properties (solubility, ionization, molecular weight, melting point) and the barrier function of the stratum corneum. Various approaches have been applied in order to improve drug penetration, retention, and efficacy. This systematic review aims at identifying the most commonly used techniques for topical drug delivery by means of gel-based topical formulations in skin cancer treatment. The excipients used, the preparation approaches, and the methods characterizing gels are discussed in brief. The safety aspects are also highlighted. The combinatorial formulation of nanocarrier-loaded gels is also reviewed from the perspective of improving drug delivery characteristics. Some limitations and drawbacks in the identified strategies are also outlined and considered within the future scope of topical chemotherapy.
Collapse
Affiliation(s)
- Marta Slavkova
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Borislav Tzankov
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Teodora Popova
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Christina Voycheva
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Medical University of Sofia, 1000 Sofia, Bulgaria
| |
Collapse
|
4
|
Dharmaratne P, Yu L, Wong RCH, Chan BCL, Lau KM, Wang B, Lau CBS, Fung KP, Ng DKP, Ip M. A Novel Dicationic Boron Dipyrromethene-based Photosensitizer for Antimicrobial Photodynamic Therapy against Methicillin-Resistant Staphylococcus aureus. Curr Med Chem 2021; 28:4283-4294. [PMID: 33292110 PMCID: PMC8287893 DOI: 10.2174/0929867328666201208095105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 12/23/2022]
Abstract
Background
We report herein the synthesis of a novel dicationic boron dipyrromethene derivative (compound 3) which is symmetrically substituted with two trimethylammonium styryl groups. Methods
The antibacterial photodynamic activity of compound 3 was determined against sixteen methicillin-resistant Staphylococcus aureus (MRSA) strains, including four ATCC type strains (ATCC 43300, ATCC BAA-42, ATCC BAA-43, and ATCC BAA-44), two mutant strains [AAC(6’)-APH(2”) and RN4220/pUL5054], and ten non-duplicate clinical strains of hospital- and community-associated MRSA. Upon light irradiation, the minimum bactericidal concentrations of compound 3 were in the range of 1.56-50 µM against all the sixteen MRSA strains. Interestingly, compound 3 was not only more active than an analogue in which the ammonium groups are not directly connected to the n-conjugated system (compound 4), but also showed significantly higher (p < 0.05) antibacterial potency than the clinically approved photosensitizer methylene blue. The skin irritation of compound 3 during topical application was tested on human 3-D skin constructs and proven to be non-irritant in vivo at concentrations below 1.250 mM. In the murine MRSA infected wound study, the colony forming unit reduction of compound 3 + PDT group showed significantly (p < 0.05) higher value (>2.5 log10) compared to other test groups except for the positive control. Conclusion
In conclusion, the present study provides a scientific basis for future development of compound 3 as a potent photosensitizer for photodynamic therapy for MRSA wound infection.
Collapse
Affiliation(s)
- Priyanga Dharmaratne
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Ligang Yu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Roy Chi-Hang Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Ben Chun-Lap Chan
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Kit-Man Lau
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Baiyan Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Clara Bik San Lau
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Kwok-Pui Fung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Dennis Kee-Pui Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong
| |
Collapse
|
5
|
Declercq A, Güvenç C, De Haes P. Proposition of standardized protocol for photodynamic therapy for vulvar lichen sclerosus. J DERMATOL TREAT 2020; 33:560-568. [PMID: 32420789 DOI: 10.1080/09546634.2020.1771260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Background: Photodynamic therapy (PDT) is an alternative treatment modality for vulvar lichen sclerosus (VLS) which is a chronic inflammatory mucosal condition. In literature, no consensus of optimal parameters of PDT for VLS is reached so far.Objectives: The aim of this narrative review is to develop a standardized treatment protocol for PDT in VLS.Methods: A systematic literature search was conducted to identify studies reporting on PDT in VLS and used treatment parameters, side-effects, and clinical outcomes were summarized.Results: Thirteen studies used 5-aminolevulinic acid (5-ALA) with concentrations of 20%, 10%, 5% and three studies used methyl aminolevulinate (MAL). Generally, the light source was red light (median 630 nm). Light dose varied between 9 and 180 J/cm2 and light intensity between 40 and 700 mW/cm2. Incubation period with the photosensitizer ranged from 2 to 6 h. All studies showed a substantial improvement in VLS-related pruritus, burning and pain.Conclusions: Based on a literature review, we suggest the following protocol for PDT in VLS: 5% 5-ALA as a photosensitizer applied for 3 h under occlusion before irradiation at the dose of 120 J/cm2 with red light (590-760 nm) and intensity of 204 mW/cm2.
Collapse
Affiliation(s)
- Alicia Declercq
- Department of Dermatology, University Hospitals Leuven, Leuven, Belgium
| | - Canan Güvenç
- Department of Dermatology, University Hospitals Leuven, Leuven, Belgium
| | - Petra De Haes
- Department of Dermatology, University Hospitals Leuven, Leuven, Belgium
| |
Collapse
|
6
|
Ma L, Yang X, Yao X, Weng W. Solubilization of Hexyl Aminolevulinate by Surfactants for Tumor Fluorescence Detection. Photochem Photobiol 2020; 96:1088-1095. [PMID: 32125708 DOI: 10.1111/php.13252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/20/2020] [Indexed: 11/29/2022]
Abstract
Hexyl aminolevulinate (HAL) is a lipophilic derivative of 5-aminolevulinic acid (5-ALA) and can induce more protoporphyrin IX (PpIX) formation and stronger fluorescence intensity (FI) than 5-ALA, which will greatly facilitate photodynamic diagnosis and therapy. The main drawback of HAL is its low solubility in neutral aqueous media. In this study, surfactants were used to increase HAL solubility in the cell culture medium and serum, followed by in vitro fluorescence formation measurement in human pancreatic cancer cells (SW1990) and in vivo fluorescence detection in tumor-bearing mice. The results showed that Tween 80 (TW80) and Kolliphor® HS 15 (HS15) increased the solubility of HAL in the selected media. Although TW80 and HS15 exhibited in vitro cytotoxicity at high concentrations (5 mg mL-1 ), they facilitated fluorescent signal formation at the early stage of cell incubation. When surfactants were used, the FI should be determined without the routine washing process because surfactant-containing culture medium caused the loss of synthesized PpIX during the washing process. When HAL dissolved in TW80 solution was injected intraperitoneally into pancreatic cancer-bearing mice at a dose of 50 mg kg-1 , the tumors exhibited red fluorescence, which indicated that systemic administration of surfactant-solubilized HAL might be applicable for tumor fluorescence detection in vivo.
Collapse
Affiliation(s)
- Lirong Ma
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xuanlin Yang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Xiuzhong Yao
- Department of Radiology, Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Weiyu Weng
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, China.,Shanghai Key Laboratory of New Drug Design, East China University of Science and Technology, Shanghai, China
| |
Collapse
|
7
|
Chan KM, Gleadle J, Vasilev K, MacGregor M. Probing Hexaminolevulinate Mediated PpIX Fluorescence in Cancer Cell Suspensions in the Presence of Chemical Adjuvants. Int J Mol Sci 2020; 21:ijms21082963. [PMID: 32331454 PMCID: PMC7216002 DOI: 10.3390/ijms21082963] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/09/2020] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
Exogenous administration of hexaminolevulinate (HAL) induces fluorescent protoporphyrin IX (PpIX) accumulation preferentially in cancer cells. However, the PpIX fluorescence intensities between noncancer and cancer cells are highly variable. The contrast between cancer and noncancer cells may be insufficient to reliably discriminate, especially at the single cell level in cancer diagnostics. This study examines the use of the chemical adjuvants dimethylsulphoxide (DMSO) or deferoxamine (DFO) to enhance the HAL induced PpIX accumulation in cancer cells. Our results showed that in some of the incubation conditions tested, the addition of DFO with HAL significantly increased PpIX 21 fluorescence of adherent monolayer cancer cells, but this was never the case for cells in suspension. Permeabilisation with DMSO did not increase PpIX fluorescence. Cell-to-cell interaction may well play an important role in the PpIX accumulation when suspended cells are treated in HAL and adjuvant chemicals.
Collapse
Affiliation(s)
- Kit Man Chan
- Department of Engineering, University of South Australia, Adelaide, SA 5095, Australia;
| | - Jonathan Gleadle
- Department of Renal Medicine, Flinders Medical Centre, Flinders University, Bedford Park, SA 5042, Australia;
- College of Medicine and Public Health, Flinders University, Bedford Park, SA 5042, Australia
| | - Krasimir Vasilev
- Future Industries Institute, School of Engineering, University of South Australia, Adelaide, SA 5095, Australia;
| | - Melanie MacGregor
- Future Industries Institute, School of Engineering, University of South Australia, Adelaide, SA 5095, Australia;
- Correspondence: ; Tel.: +61-8-8302-3518
| |
Collapse
|
8
|
The Dark Side: Photosensitizer Prodrugs. Pharmaceuticals (Basel) 2019; 12:ph12040148. [PMID: 31590223 PMCID: PMC6958472 DOI: 10.3390/ph12040148] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/26/2019] [Accepted: 09/30/2019] [Indexed: 02/07/2023] Open
Abstract
Photodynamic therapy (PDT) and photodiagnosis (PD) are essential approaches in the field of biophotonics. Ideally, both modalities require the selective sensitization of the targeted disease in order to avoid undesired phenomena such as the destruction of healthy tissue, skin photosensitization, or mistaken diagnosis. To a large extent, the occurrence of these incidents can be attributed to “background” accumulation in non-target tissue. Therefore, an ideal photoactive compound should be optically silent in the absence of disease, but bright in its presence. Such requirements can be fulfilled using innovative prodrug strategies targeting disease-associated alterations. Here we will summarize the elaboration, characterization, and evaluation of approaches using polymeric photosensitizer prodrugs, nanoparticles, micelles, and porphysomes. Finally, we will discuss the use of 5-aminolevulinc acid and its derivatives that are selectively transformed in neoplastic cells into photoactive protoporphyrin IX.
Collapse
|
9
|
Chan KM, Vasilev K, Shirazi HS, McNicholas K, Li J, Gleadle J, MacGregor M. Biosensor device for the photo-specific detection of immuno-captured bladder cancer cells using hexaminolevulinate: An ex-vivo study. Photodiagnosis Photodyn Ther 2019; 28:238-247. [PMID: 31394301 DOI: 10.1016/j.pdpdt.2019.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/20/2019] [Accepted: 08/02/2019] [Indexed: 01/24/2023]
Abstract
Exogenous administration of the photodynamic agent hexaminolevulinate induces Protoporphyrin IX (PpIX) accumulation in malignant tissue. This may enable differentiation from healthy tissues by emission of a distinctive red fluorescence. It provides the photo-specific detection when excited with blue light at 405 nm. This study determines the ex-vivo processing conditions (time, concentration, temperature and addition of a fluorescent dye) required for HAL-induced PpIX fluorescence to successfully discriminate between bladder cancer and benign fibroblast cells shed in urine at the single cell level. HAL-induced fluorescence was 4.5 times brighter in cancer cells than non-cancer cells when incubated in the optimum conditions, and could be used to correctly identified bladder cancer cells captured within a newly developed immunofunctionalized biosensor with 88% efficiency. This biosensor is designed to facilitate the immuno-capture of cancer cells by interaction with carcinoma specific anti Epithelial Cell Adhesion molecule (anti-EpCAM) antibodies. Anti-EpCAM antibodies were immobilized on polyoxazoline (POx) plasma polymers by covalent bonds in microfluidic channels. Combining photodynamic and immunoselective approach therefore constitute a promising approach for the non-invasive diagnosis of bladder cancer with two independent level of confidence. OBJECTIVE This study investigate the relationship between different regulatory factors (time, concentration, temperature and addition of a fluorescent dye) and Hexaminolevulinate (HAL)-mediated photodynamic diagnosis of bladder cancer (PDD) in vitro. We examine the natural photosensitizer Protoporphyrin IX (PpIX) fluorescence induced by HAL in several human bladder cancer cell lines and one non-cancer foreskin fibroblast cell line and identify the processing conditions that maximise the difference in fluorescence intensity between malign and benign cell types. The detection of HAL induced fluorescence at a single cell level by a selective cancer cell capture platform is also tested. MATERIALS AND METHODS Experiments were performed on cultured monolayer cells and cells in suspension. The cell lines examined included the transitional epithelium carcinoma cell lines HT1197, HT1376, EJ138 and RT4, and the non-cancer foreskin fibroblasts HFF. Cells were incubated with HAL in various doses, time and temperature settings. We also used the nuclear red as a tool to study the PpIX subcellular localization. PpIX fluorescence intensities were measured and analysed using fluorescence microscope software. Finally, we evaluated the possibility of using HAL to discriminate between cancer and non-cancer cells from a mixed cell population using a newly developed immunofunctionalized microfluidic platform. RESULTS The accumulation of PpIX in bladder cancer cells was significantly higher than in non-cancer cells, both cultured monolayer cells and cells in suspension. Effectively, the fluorescence intensity was 4.5 times brighter in bladder cancer cells than non-cancer foreskin fibroblast cells when incubated in the optimum condition, in which the nuclear stain adjuvant acted as a fluorescence enhancer. Cancer cells displayed PpIX accumulated mainly in mitochondria but none or very little PpIX was observed in non-cancer cells. HAL-induced fluorescence could be used to correctly identify bladder cancer cells within the EpCAM conjugated POx based microfluidic sensor with an 88% capture selectivity rate. CONCLUSIONS These findings prove that the application of HAL-induced PpIX fluorescence can successfully distinguish between cancer and non-cancer cells in vitro. This test can provide advanced second level of confidence on the cancerous nature of cells captured by the immunofunctionalized bladder cancer diagnostic platform.
Collapse
Affiliation(s)
- Kit Man Chan
- School of Engineering, University of South Australia, South Australia, Australia.
| | - Krasimir Vasilev
- School of Engineering, Future Industries Institute, University of South Australia, South Australia, Australia.
| | - Hanieh Safizadeh Shirazi
- School of Engineering, Future Industries Institute, University of South Australia, South Australia, Australia.
| | - Kym McNicholas
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.
| | - Jordan Li
- Department of Renal Medicine, Flinders Medical Centre, Bedford Park, South Australia, Australia; College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.
| | - Jonathan Gleadle
- Department of Renal Medicine, Flinders Medical Centre, Bedford Park, South Australia, Australia; College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.
| | - Melanie MacGregor
- School of Engineering, Future Industries Institute, University of South Australia, South Australia, Australia.
| |
Collapse
|
10
|
Kadhim A, McKenzie LK, Bryant HE, Twyman LJ. Synthesis and Aggregation of a Porphyrin-Cored Hyperbranched Polyglycidol and Its Application as a Macromolecular Photosensitizer for Photodynamic Therapy. Mol Pharm 2019; 16:1132-1139. [PMID: 30694688 DOI: 10.1021/acs.molpharmaceut.8b01119] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Macromolecules are potentially useful delivery systems for cancer drugs, as their size allows them to utilize the enhanced permeability and retention effect (EPR), which facilitates selective delivery to (and retention within) tumors. In addition, macromolecular delivery systems can prolong circulation times as well as protect and solubilize toxic and hydrophobic drug moieties. Overall, these properties and abilities can result in an enhanced therapeutic effect. Photodynamic therapy (PDT) combines the use of oxygen and a photosensitizer (PS), which become toxic upon light irradiation. We proposed that a PS encapsulated within a water-soluble macromolecule could exploit the EPR effect and safely and selectively deliver the PS to a tumor. In this paper, we describe the synthesis of a porphyrin-cored hyperbranched polymer that aggregated into larger micellar structures. DLS and TEM indicated that these aggregated structures had diameters of 45 and 20 nm for the solvated and nonsolvated species, respectively. The porphyrin-cored HBP (PC-HBP), along with the nonencapsulated porphyrin (THPP), were screened against EJ bladder carcinoma cells in the dark and light. Both THPP and PC-HBP displayed good toxicity in the light, with LD50 concentrations of 0.5 and 1.7 μM, respectively. However, in the dark, the nonincorporated porphyrin (THPP) displayed significant toxicity, generating an LD50 of 4 μM. On the other hand, no dark toxicity was observed for the polymer system (PC-HBP) at concentrations of 100 μM or less. As such, incorporation within the large polymer aggregate serves to eliminate dark toxicity while maintaining excellent toxicity when irradiated.
Collapse
Affiliation(s)
- Alaa Kadhim
- Department of Chemistry , University of Sheffield , Sheffield S3 7HF , U.K
| | - Luke K McKenzie
- Department of Chemistry , University of Sheffield , Sheffield S3 7HF , U.K
- Department of Oncology and Metabolism , University of Sheffield , Sheffield S10 2RX , U.K
| | - Helen E Bryant
- Department of Oncology and Metabolism , University of Sheffield , Sheffield S10 2RX , U.K
| | - Lance James Twyman
- Department of Chemistry , University of Sheffield , Sheffield S3 7HF , U.K
| |
Collapse
|
11
|
Zhang C, Gong T, Wang J, Chou A, Jiang JJ. Topical Application of 5-Aminolevulinic Acid Is Sufficient for Photodynamic Therapy on Vocal Folds. Laryngoscope 2018; 129:E80-E86. [PMID: 30408178 DOI: 10.1002/lary.27437] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVES To evaluate the feasibility of topical photodynamic therapy (PDT) using 5-aminolevulinic acid (5-ALA) for vocal fold leukoplakia. STUDY DESIGN Ex vivo and in vivo. METHODS 5-ALA was applied topically as a 20% solution to ex vivo canine vocal folds. The penetration depth and concentrations of 5-ALA in tissue were quantified using frozen sectioning and fluorescamine derivatization after 5-ALA contact incubation or topical spraying. Then, 5-ALA solution was sprayed on leporine vocal folds once, twice, or given systemically in vivo. Protoporphyrin IX (PPIX) location was visualized using fluorescence microscopy, and PPIX concentrations were measured using a fluorescent quantitative method. Hematoxylin and eosin (H&E) staining was performed to visualize the histological changes of vocal folds after PDT for each group. RESULTS Topical incubation of 15 minutes with 5-ALA achieved a penetration depth of over 2 mm and similar concentrations within the superficial 500 μm of epithelium, compared with longer incubation times. Topical spraying of 5-ALA produced sufficient concentrations in vocal folds, but the retention time is short. An in vivo leporine model showed that laryngeal spraying of 20% 5-ALA induced similar penetration depth and concentrations of PPIX compared to systemic administration of 5-ALA. Two sprays of 20% 5-ALA solution with an interval of 30 minutes are needed to produce complete exfoliation of vocal fold epithelium. CONCLUSION Topical PDT with laryngeal spraying of 20% 5-ALA solution achieves sufficient therapeutic effects and is potentially applicable for the treatment of vocal fold leukoplakia. LEVEL OF EVIDENCE NA Laryngoscope, 129:E80-E86, 2019.
Collapse
Affiliation(s)
- Chi Zhang
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Ting Gong
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Jiajia Wang
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Adriana Chou
- the Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A
| | - Jack J Jiang
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China.,the Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, U.S.A
| |
Collapse
|
12
|
Dobson J, de Queiroz GF, Golding JP. Photodynamic therapy and diagnosis: Principles and comparative aspects. Vet J 2018; 233:8-18. [DOI: 10.1016/j.tvjl.2017.11.012] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/22/2017] [Accepted: 11/21/2017] [Indexed: 12/16/2022]
|
13
|
In vitro assessment of anti-tumorigenic mechanisms and efficacy of NanoALA, a nanoformulation of aminolevulic acid designed for photodynamic therapy of cancer. Photodiagnosis Photodyn Ther 2017; 20:62-70. [PMID: 28838760 DOI: 10.1016/j.pdpdt.2017.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/19/2017] [Accepted: 08/15/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND The development of nanocarriers is an important approach to increase the bioavailability of hydrophilic drugs in target cells. In this work, we evaluated the anti-tumorigenic mechanisms and efficacy of NanoALA, a novel nanoformulation of aminolevulic acid (ALA) based on poly(lactide-co-glycolide) (PLGA) nanocapsules designed for anticancer photodynamic therapy (PDT). METHODS For this purpose, physicochemical characterization, prodrug incorporation kinetics, biocompatibility and photocytotoxicity tests, analysis of the cell death type and mitochondrial function, measurement of the intracellular reactive oxygen species production and DNA fragmentation were performed in murine mammary carcinoma (4T1) cells. RESULTS NanoALA formulation, stable over a period of 90days following synthesis, presented hydrodynamic diameter of 220±8.7nm, zeta potential of -30.6mV and low value of polydispersity index (0.28). The biological assays indicated that the nanostructured product promotes greater ALA uptake by 4T1 cells and consequently more cytotoxicity in the PDT process. For the first time in the scientific literature, there is a therapeutic efficacy report of approximately 80%, after only 1h of incubation with 100μgmL-1 prodrug (0.6mM ALA equivalent). The mitochondria are probably the initial target of treatment, culminating in energy metabolism disorders and cell death by apoptosis. CONCLUSIONS NanoALA emerges as a promising strategy for anticancer PDT. Besides being effective against a highly aggressive tumor cell line, the treatment may be economically advantageous because it allows a reduction in the dose and frequency of application compared to free ALA.
Collapse
|
14
|
Soni N, Jyoti K, Jain UK, Katyal A, Chandra R, Madan J. Noscapinoids bearing silver nanocrystals augmented drug delivery, cytotoxicity, apoptosis and cellular uptake in B16F1, mouse melanoma skin cancer cells. Biomed Pharmacother 2017; 90:906-913. [PMID: 28441716 DOI: 10.1016/j.biopha.2017.04.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/04/2017] [Accepted: 04/10/2017] [Indexed: 12/31/2022] Open
Abstract
PURPOSE Noscapine (Nos) and reduced brominated analogue of noscapine (Red-Br-Nos) prevent cellular proliferation and induce apoptosis in cancer cells either alone or in combination with other chemotherapeutic drugs. However, owing to poor physicochemical properties, Nos and Red-Br-Nos have demonstrated their anticancer activity at higher and multiple doses. Therefore, in present investigation, silver nanocrystals of noscapinoids (Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals) were customized to augment drug delivery, cytotoxicity, apoptosis and cellular uptake in B16F1 mouse melanoma cancer cells. METHODS AND RESULTS Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals were prepared separately by precipitation method. The mean particle size of Nos-Ag2+ nanocrystals was measured to be 25.33±3.52nm, insignificantly (P>0.05) different from 27.43±4.51nm of Red-Br-Nos-Ag2+ nanocrystals. Furthermore, zeta-potential of Nos-Ag2+ nanocrystals was determined to be -25.3±3.11mV significantly (P<0.05) different from -15.2±3.33mV of Red-Br-Nos-Ag2+ nanocrystals. The shape of tailored nanocrystals was slightly spherical and or irregular in shape. The architecture of Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals was crystalline in nature. FT-IR spectroscopy evinced the successful interaction of Ag2+ nanocrystals with Nos and Red-Br-Nos, respectively. The superior therapeutic efficacy of tailored nanocrystals was measured in terms of enhanced cytotoxicity, apoptosis and cellular uptake. The Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals exhibited an IC50 of 16.6μM and 6.5μM, significantly (P<0.05) lower than 38.5μM of Nos and 10.3μM of Red-Br-Nos, respectively. Finally, cellular morphological alterations in B16F1 cells upon internalization of Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals provided the evidences for accumulation within membrane-bound cytoplasmic vacuoles and in enlarged lysosomes and thus triggered mitochondria mediated apoptosis via caspase activation. CONCLUSION Preliminary investigations substantiated that Nos-Ag2+ nanocrystals and Red-Br-Nos-Ag2+ nanocrystals must be further explored and utilized for the delivery of noscapinoids to melanoma cancer cells.
Collapse
Affiliation(s)
- Naina Soni
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Kiran Jyoti
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Upendra Kumar Jain
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India
| | - Anju Katyal
- Dr. B.R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India
| | - Ramesh Chandra
- Dr. B.R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, India; Department of Chemistry, University of Delhi, Delhi, India
| | - Jitender Madan
- Department of Pharmaceutics, Chandigarh College of Pharmacy, Mohali, Punjab, India.
| |
Collapse
|
15
|
Thunshelle C, Yin R, Chen Q, Hamblin MR. Current Advances in 5-Aminolevulinic Acid Mediated Photodynamic Therapy. CURRENT DERMATOLOGY REPORTS 2016; 5:179-190. [PMID: 28163981 DOI: 10.1007/s13671-016-0154-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Kennedy and Pottier discovered that photodynamic therapy (PDT) could be carried out using a procedure consisting of topical application of the porphyrin-precursor, 5-aminolevulinic acid (ALA) to the skin, followed after some time by illumination with various light parameters in the 1980s. Since then, ALA-PDT has expanded enormously and now covers most aspects of dermatological disease. The purpose of this review is to discuss a range of ingenious strategies that investigators have devised for improving the overall outcome (higher efficiency and lower side effects) of ALA-PDT. The big advance of using ALA esters instead of the free acid to improve skin penetration was conceived in the 1990s. A variety of more recent innovative approaches can be divided into three broad groups: (a) those relying on improving delivery or penetration of ALA into the skin; (b) those relying on ways to increase the synthesis of protoporphyrin IX inside the skin; (c) those relying on modification of the illumination parameters. In the first group, we have improved delivery of ALA with penetration-enhancing chemicals, iontophoresis, intracutaneous injection, or fractionated laser. There is also a large group of nanotechnology-related approaches with ALA being delivered using liposomes/ethosomes, ALA dendrimers, niosomes, mesoporous silica nanoparticles, conjugated gold nanoparticles, polymer nanoparticles, fullerene nanoparticles, and carbon nanotubes. In the second group, we can find the use of cellular differentiating agents, the use of iron chelators, and the effect of increasing the temperature. In the third group, we find methods designed to reduce pain as well as improve efficiency including fractionated light, daylight PDT, and wearable light sources for ambulatory PDT. This active area of research is expected to continue to provide a range of intriguing possibilities.
Collapse
Affiliation(s)
- Connor Thunshelle
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard College, Cambridge, MA 02138, USA
| | - Rui Yin
- Southwest Hospital, Third Military Medical University, Chongqing 40038, China
| | - Qiquan Chen
- Southwest Hospital, Third Military Medical University, Chongqing 40038, China
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| |
Collapse
|
16
|
Lavogiez C, Mortier L, Mordon S. La PDT antimicrobienne en dermatologie. Partie II : les infections virales et parasitaires ; les perspectives. Ann Dermatol Venereol 2016; 143:62-9. [DOI: 10.1016/j.annder.2015.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 01/30/2015] [Accepted: 02/20/2015] [Indexed: 10/23/2022]
|
17
|
Mansoor I, Lai J, Ranamukhaarachchi S, Schmitt V, Lambert D, Dutz J, Häfeli UO, Stoeber B. A microneedle-based method for the characterization of diffusion in skin tissue using doxorubicin as a model drug. Biomed Microdevices 2015; 17:9967. [PMID: 26009275 DOI: 10.1007/s10544-015-9967-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Hollow microneedles can overcome the stratum corneum (SC) barrier and deposit a compound directly into the viable epidermis or the dermis, unlike adhesive patches that rely on drug diffusion across the SC. The traditional one-dimensional methods used to study the diffusivity of drugs across the skin layers are not very accurate for hollow microneedles, since the ejection of compounds out of microneedle lumens resembles a point-source spreading in all directions and is highly dependent on injection depth. This paper presents a technique that is useful for studying drug injection using hollow microneedles at various depths below the SC. This technique uses confocal microscopy to image the distribution of a fluorescent compound in the skin after injection. The fluorescence distribution in the skin is observed over time and applied to a spherical Gaussian diffusion model for limited source diffusion to determine the diffusion coefficient of the compound in the skin. Applied to freshly excised pig skin, the diffusion coefficient for the anti-cancer drug doxorubicin was measured as 4.61 × 10(-9) cm(2)/s, while the diffusion coefficient in previously refrigerated or frozen pig skin was 1.31 × 10(-8) cm(2)/s and 4.21 × 10(-8) cm(2)/s, respectively. Our data suggests that skin storage conditions can substantially alter the diffusion of drugs. The use of refrigerated and, even more so, previously frozen skin should be avoided for quantitative transdermal drug delivery studies.
Collapse
Affiliation(s)
- Iman Mansoor
- Department of Electrical and Computer Engineering, The University of British Columbia, 5500 - 2332 Main Mall, Vancouver, BC, Canada, V6T 1Z4
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Tan J, Sun C, Xu K, Wang C, Guo J. Immobilization of ALA-Zn(II) Coordination Polymer Pro-photosensitizers on Magnetite Colloidal Supraparticles for Target Photodynamic Therapy of Bladder Cancer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:6338-6346. [PMID: 26514273 DOI: 10.1002/smll.201502131] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/07/2015] [Indexed: 06/05/2023]
Abstract
5-Aminolevulinic acid (ALA) is a widely used photodynamic therapy (PDT) prodrug in the clinic. It can be metalized to the photosensitizer PpIX, which produces toxic singlet oxygen to kill cancer cells upon visible light irradiation. Herein, a core/shell-structured vehicle is designed to comprise magnetite colloidal supraparticles (MCSPs) as cores and ALA-Zn(II) coordination polymers as shells (Fe3O4@ALA-Zn(II) ) for target pro-photosensitizer delivery. The coordination polymers with 2D layered structures are locally deposited on the MCSPs by the complexation of the ALA and Zn(II) ions, and are readily controlled by varying the feed precursors and reaction temperatures. The maximum conjugated ALA amount is up to 17%. The Fe3O4@ALA-Zn(II) microspheres exhibit pH-sensitive release of ALA in acidic environment and rapid magnetic responsiveness. Cytotoxicity results demonstrate that Fe3O4@ALA-Zn(II) shows a significant inhibitory effect to T24 cells and is nontoxic to 293T normal cells as exposed to the 630 nm visible light for a very short time, which may due to the selective accumulation of ALA-induced PpIX in T24 cancer cells. Compared to the ALA used alone, the coordination polymer form is more efficient because of the bioactivity of incorporated Zn ions despite underlying the same apoptosis mechanism as ALA agent.
Collapse
Affiliation(s)
- Jing Tan
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Chuanyu Sun
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, P. R. China
| | - Ke Xu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, P. R. China
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, P. R. China
| |
Collapse
|
19
|
Rossetti FC, Depieri LV, Praça FG, Del Ciampo JO, Fantini MCA, Pierre MBR, Tedesco AC, Bentley MVLB. Optimization of protoporphyrin IX skin delivery for topical photodynamic therapy: Nanodispersions of liquid-crystalline phase as nanocarriers. Eur J Pharm Sci 2015; 83:99-108. [PMID: 26657201 DOI: 10.1016/j.ejps.2015.12.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/01/2015] [Accepted: 12/02/2015] [Indexed: 02/05/2023]
Abstract
Nanodispersions of liquid-crystalline phases (NLPs) composed of monoolein and oleic acid were chosen as nanocarriers to improve the topical retention of the photosensitizer protoporphyrin IX (PpIX) and thereby optimize photodynamic therapy (PDT) using this photosensitizer. The nanodispersions were characterized by polarized light microscopy, small-angle X-ray diffraction and dynamic light scattering. The stability and encapsulation efficiency (EE%) of the nanodispersions were also evaluated. In vitro and in vivo skin penetration studies were performed to determine the potential of the nanodispersions for cutaneous application. In addition, skin penetration and skin irritancy (in an animal model) after in vivo application were visualized by fluorescence light microscopy. The nanodispersion obtained was characterized as a monodisperse system (~150.0 nm) of hexagonal liquid-crystalline phase, which provided a high encapsulation efficiency of PpIX (~88%) that remained stable over 90 days of investigation. Skin penetration studies demonstrated that the nanodispersion enhanced PpIX skin uptake 11.8- and 3.3-fold (in vitro) and 23.6- and 20.8-fold (in vivo) compared to the PpIX skin uptake of control formulations, respectively. In addition, the hexagonal phase nanodispersion did not cause skin irritation after application for two consecutive days. Overall, the results show that the nanocarrier developed is suitable for use in topical PDT with PpIX.
Collapse
Affiliation(s)
- Fábia Cristina Rossetti
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, 14040-160, Ribeirão Preto, SP, Brazil
| | - Lívia Vieira Depieri
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, 14040-160, Ribeirão Preto, SP, Brazil
| | - Fabíola Garcia Praça
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, 14040-160, Ribeirão Preto, SP, Brazil
| | - José Orestes Del Ciampo
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, 14040-160, Ribeirão Preto, SP, Brazil
| | | | - Maria Bernadete Riemma Pierre
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, 21.941-902, Rio de Janeiro, RJ, Brazil
| | - Antônio Cláudio Tedesco
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, SP, Brazil
| | - Maria Vitória Lopes Badra Bentley
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, 14040-160, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
20
|
Saini R, Poh CF. Photodynamic therapy: a review and its prospective role in the management of oral potentially malignant disorders. Oral Dis 2015; 19:440-51. [PMID: 24079944 DOI: 10.1111/odi.12003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Revised: 07/24/2012] [Accepted: 07/25/2012] [Indexed: 01/25/2023]
Abstract
With the unreliability of epithelial dysplasia as a predictor to determine the risk of future malignant development, subjectivity associated in evaluating dysplasia by pathologists and paucity of biomarkers that could accurately predict the progression risks in oral potentially malignant disorders (PMDs), eradication of the lesions appears to be the most desirable approach to minimize the risk of invasive cancer formation. Interventions, such as surgery and chemoprevention, have not shown promising long-term results in the treatment of these lesions, and lack of guidelines and general consensus on their management has incited much anxiety and doubts in both patients and community clinicians. Topical photodynamic therapy (PDT) is a minimally invasive and minimally toxic technique that in recent years has shown great promise in the management of PMDs. In this review, we describe the historical developments in the field of PDT, its basic mechanisms, as well as related clinical studies, and its challenges in the management of oral PMDs. Based on its high efficacy and low side effects, its high patient acceptance/compliance, the simplicity of the procedure and its minimal pretreatment preparation, topical PDT is believed to have potential to play an important role in the management of PMDs, especially of the low-grade dysplasia.
Collapse
Affiliation(s)
- R Saini
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada; Faculty of Dentistry, Department of Oral Biological and Medical Sciences, University of British Columbia, Vancouver, BC, Canada
| | | |
Collapse
|
21
|
Abstract
The study of a drug's dermal penetration profile provides important pharmaceutical data for the rational development of topical and transdermal delivery systems because the skin is a broadly used delivery route for local and systemic drugs and a potential route for gene therapy and vaccines. Monitoring drug penetration across the skin and quantifying its levels in different skin layers have been constant challenges due to the detection limitations of the available techniques, as well as the inherent interference in this tissue. This review explores and discusses several bionalytical methods that are indispensable tools to study drugs across the skin. In addressing the main topic, we structure the review highlighting the skin as an important route of drug administration and its structure, skin membrane models most used and its properties, in vitro and in vivo assays most used in the study of drug delivery to the skin, the techniques for processing the skin for subsequent analysis by bioanalytical methods that have a theoretical and practical approach showing its applicability, limitations and also including examples of its use. This review has a comprehensive approach in order to help researchers design their experiments and update the applicability and advances in this area of expertise.
Collapse
|
22
|
Andrade C, Vollet-Filho J, Salvio A, Bagnato V, Kurachi C. Identification of skin lesions through aminolaevulinic acid-mediated photodynamic detection. Photodiagnosis Photodyn Ther 2014; 11:409-15. [DOI: 10.1016/j.pdpdt.2014.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/17/2014] [Accepted: 05/21/2014] [Indexed: 10/25/2022]
|
23
|
Mesoscopic fluorescence tomography of a photosensitizer (HPPH) 3D biodistribution in skin cancer. Acad Radiol 2014; 21:271-80. [PMID: 24439340 DOI: 10.1016/j.acra.2013.11.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 11/09/2013] [Accepted: 11/11/2013] [Indexed: 01/15/2023]
Abstract
RATIONALE AND OBJECTIVES Photodynamic therapy (PDT) is a promising strategy for treating cancer. PDT involves three components: a photosensitizer (PS) drug, a specific wavelength of drug-activating light, and oxygen. A challenge in PDT is the unknown biodistribution of the PS in the target tissue. In this preliminary study, we report the development of a new approach to image in three dimensions the PS biodistribution in a noninvasive and fast manner. MATERIALS AND METHODS A mesoscopic fluorescence tomography imaging platform was used to image noninvasively the biodistribution of 2-[1-hexyloxyethyl]-2 devinyl pyropheophorbide-a (HPPH) in preclinical skin cancer models. Seven tumors were imaged and optical reconstructions were compared to nonconcurrent ultrasound data. RESULTS Successful imaging of the HPPH biodistribution was achieved on seven skin cancer tumors in preclinical models with a typical acquisition time of 1 minute. Two-dimensional fluorescence signals and estimated three-dimensional PS distributions were located within the lesions. However, HPPH distribution was highly heterogeneous with the tumors. Moreover, HPPH distribution volume and tumor volume as estimated by ultrasound did not match. CONCLUSIONS The results of this proof-of-concept study demonstrate the potential of MFMT to image rapidly the HPPH three-dimensional biodistribution in skin cancers. In addition, these preliminary data indicate that the PS biodistribution in skin cancer tumors is heterogeneous and does not match anatomical data. Mesoscopic fluorescence molecular tomography, by imaging fluorescence signals over large areas with high spatial sampling and at fast acquisition speeds, may be a new imaging modality of choice for planning and optimizing of PDT treatment.
Collapse
|
24
|
Mohammadi Z, Sazgarnia A, Rajabi O, Soudmand S, Esmaily H, Sadeghi HR. An in vitro study on the photosensitivity of 5-aminolevulinic acid conjugated gold nanoparticles. Photodiagnosis Photodyn Ther 2013; 10:382-8. [DOI: 10.1016/j.pdpdt.2013.03.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 03/05/2013] [Accepted: 03/14/2013] [Indexed: 01/25/2023]
|
25
|
Kim CH, Chung CW, Lee HM, Kim DH, Kwak TW, Jeong YIL, Kang DH. Synergistic effects of 5-aminolevulinic acid based photodynamic therapy and celecoxib via oxidative stress in human cholangiocarcinoma cells. Int J Nanomedicine 2013; 8:2173-86. [PMID: 23807846 PMCID: PMC3685402 DOI: 10.2147/ijn.s44394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
5-Aminolevulinic acid (ALA)-based photodynamic therapy (PDT) has the potential to kill cancer cells via apoptotic or necrotic signals that are dependent on the generation of intracellular reactive oxygen species (ROS). Celecoxib is an anti-inflammatory drug that induces intracellular ROS generation. We investigated whether the combined application of celecoxib and ALA-PDT improved the efficacy of PDT in human cholangiocarcinoma cells and in tumor bearing mice. In vitro, combined treatment of celecoxib and ALA-PDT increased phototoxicity and intracellular ROS levels after irradiation with 0.75 J/cm(2) when compared to ALA-PDT alone. Even though ROS levels increased with 0.25 J/cm(2) of irradiation, it did not influence phototoxicity. When heme oxygenase-1, a defensive protein induced by oxidative stress, was inhibited in the combined treatment group, phototoxicity was increased at both 0.25 J/cm(2) and 0.75 J/cm(2) of irradiation. We identified the combined effect of ALA-PDT and celecoxib through the increase of oxidative stress such as ROS. In vivo, about 40% tumor growth inhibition was observed with combined application of ALA-PDT and celecoxib when compared to ALA-PDT alone. The combined application of ALA-PDT and celecoxib could be an effective therapy for human cholangiocarcinoma. Moreover, use of a heme oxygenase-1 inhibitor with PDT could play an important role for management of various tumors involving oxidative stress.
Collapse
Affiliation(s)
- Cy Hyun Kim
- National Research and Development Center for Hepatobiliary Cancer, Research Institute for Convergence of Biomedical Science and Technology, Yangsan, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|
26
|
Liu W, Zhang X, Liu K, Zhang S, Duan Y. Laser-induced fluorescence: Progress and prospective for in vivo cancer diagnosis. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5826-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
27
|
Rollakanti KR, Kanick SC, Davis SC, Pogue BW, Maytin EV. Techniques for fluorescence detection of protoporphyrin IX in skin cancers associated with photodynamic therapy. ACTA ACUST UNITED AC 2013; 2:287-303. [PMID: 25599015 DOI: 10.1515/plm-2013-0030] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Photodynamic therapy (PDT) is a treatment modality that uses a specific photosensitizing agent, molecular oxygen, and light of a particular wavelength to kill cells targeted by the therapy. Topically administered aminolevulinic acid (ALA) is widely used to effectively treat cancerous and precancerous skin lesions, resulting in targeted tissue damage and little to no scarring. The targeting aspect of the treatment arises from the fact that ALA is preferentially converted into protoporphyrin IX (PpIX) in neoplastic cells. To monitor the amount of PpIX in tissues, techniques have been developed to measure PpIX-specific fluorescence, which provides information useful for monitoring the abundance and location of the photosensitizer before and during the illumination phase of PDT. This review summarizes the current state of these fluorescence detection techniques. Non-invasive devices are available for point measurements, or for wide-field optical imaging, to enable monitoring of PpIX in superficial tissues. To gain access to information at greater tissue depths, multi-modal techniques are being developed which combine fluorescent measurements with ultrasound or optical coherence tomography, or with microscopic techniques such as confocal or multiphoton approaches. The tools available at present, and newer devices under development, offer the promise of better enabling clinicians to inform and guide PDT treatment planning, thereby optimizing therapeutic outcomes for patients.
Collapse
Affiliation(s)
- Kishore R Rollakanti
- Department of Chemical and Biomedical Engineering, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44115, USA; and Department of Biomedical Engineering, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| | - Stephen C Kanick
- Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755, USA
| | - Scott C Davis
- Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755, USA
| | - Brian W Pogue
- Thayer School of Engineering, Dartmouth College, 14 Engineering Drive, Hanover, NH 03755, USA
| | - Edward V Maytin
- Department of Chemical and Biomedical Engineering, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44115, USA; Department of Biomedical Engineering, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA; and Department of Dermatology, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
| |
Collapse
|
28
|
Microscopic Delineation of Medulloblastoma Margins in a Transgenic Mouse Model Using a Topically Applied VEGFR-1 Probe. Transl Oncol 2012; 5:408-14. [PMID: 23323155 DOI: 10.1593/tlo.12277] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 08/21/2012] [Accepted: 09/13/2012] [Indexed: 12/26/2022] Open
Abstract
The unambiguous demarcation of tumor margins is critical at the final stages in the surgical treatment of brain tumors because patient outcomes have been shown to correlate with the extent of resection. Real-time high-resolution imaging with the aid of a tumor-targeting fluorescent contrast agent has the potential to enable intraoperative differentiation of tumor versus normal tissues with accuracy approaching the current gold standard of histopathology. In this study, a monoclonal antibody targeting the vascular endothelial growth factor receptor 1 (VEGFR-1) was conjugated to fluorophores and evaluated as a tumor contrast agent in a transgenic mouse model of medulloblastoma. The probe was administered topically, and its efficacy as an imaging agent was evaluated in vitro using flow cytometry, as well as ex vivo on fixed and fresh tissues through immunohistochemistry and dual-axis confocal microscopy, respectively. Results show a preferential binding to tumor versus normal tissue, suggesting that a topically applied VEGFR-1 probe can potentially be used with real-time intraoperative optical sectioning microscopy to guide brain tumor resections.
Collapse
|
29
|
Loja MN, Luo Z, Greg Farwell D, Luu QC, Donald PJ, Amott D, Truong AQ, Gandour-Edwards RF, Nitin N. Optical molecular imaging detects changes in extracellular pH with the development of head and neck cancer. Int J Cancer 2012; 132:1613-23. [PMID: 22965462 DOI: 10.1002/ijc.27837] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 07/11/2012] [Accepted: 07/31/2012] [Indexed: 01/14/2023]
Abstract
Noninvasive localized measurement of extracellular pH in cancer tissues can have a significant impact on the management of cancer. Despite its significance, there are limited approaches for rapid and noninvasive measurement of local pH in a clinical environment. In this study, we demonstrate the potential of noninvasive topical delivery of Alexa-647 labeled pHLIP (pH responsive peptide conjugated with Alexa Fluor(®) 647) to image changes in extracellular pH associated with head and neck squamous cell carcinoma using widefield and high resolution imaging. We report a series of preclinical analyses to evaluate the optical contrast achieved after topical delivery of Alexa-647 labeled pHLIP in intact fresh human tissue specimens using widefield and high-resolution fluorescence imaging. Using topical delivery, Alexa-647 labeled pHLIP can be rapidly delivered throughout the epithelium of intact tissues with a depth exceeding 700 µm. Following labeling with Alexa-647 labeled pHLIP, the mean fluorescent contrast increased four to eight fold higher in clinically abnormal tissues as compared to paired clinically normal biopsies. Furthermore, the imaging approach showed significant differences in fluorescence contrast between the cancer and the normal biopsies across diverse patients and different anatomical sites (unpaired comparison). The fluorescence contrast differences between clinically abnormal and normal tissues were in agreement with the pathologic evaluation. Topical application of fluorescently labeled pHLIP can detect and differentiate normal from cancerous tissues using both widefield and high resolution imaging. This technology will provide an effective tool to assess tumor margins during surgery and improve detection and prognosis of head and neck cancer.
Collapse
Affiliation(s)
- Melissa N Loja
- School of Medicine, University of California, Davis, CA, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Sakai M, Fujimoto N, Ishii K, Nakamura H, Kaneda Y, Awazu K. In vitro investigation of efficient photodynamic therapy using a nonviral vector; hemagglutinating virus of Japan envelope. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:77009. [PMID: 23085849 DOI: 10.1117/1.jbo.17.7.077009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Photodynamic therapy (PDT) is a photochemical modality approved for cancer treatment. PDT has demonstrated efficacy in early stage lung cancer and esophageal cancer. The accumulation of photosensitizers in cancer cells is necessary to enhance the therapeutic benefits of PDT; however, photosensitizers have low uptake efficiency. To overcome this limitation, a drug delivery system, such as the hemagglutinating virus of Japan envelope (HVJ-E) vector, is required. In this study, the combination of PDT and HVJ-E was investigated for enhancing the efficacy of PDT. The photosensitizers that were evaluated included 5-aminolaevulinic acid (5-ALA), protoporphyrin IX (PPIX), and HVJ-PPIX. The uptake of the photosensitizers as increased twenty-fold with the addition of HVJ-E. The cytotoxicity of conventional 5-ALA was enhanced by the addition of HVJ-E vector. In conclusion, HVJ-E vector improved the uptake of photosensitizers and the PDT effect.
Collapse
Affiliation(s)
- Makoto Sakai
- Osaka University, Graduate School of Engineering, Osaka 565-0871, Japan
| | | | | | | | | | | |
Collapse
|
31
|
Sakai M, Fujimoto N, Ishii K, Nakamura H, Kaneda Y, Awazu K. In vitro investigation of efficient photodynamic therapy using a nonviral vector; hemagglutinating virus of Japan envelope. JOURNAL OF BIOMEDICAL OPTICS 2012; 17:078002. [PMID: 22894526 DOI: 10.1117/1.jbo.17.7.078002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Photodynamic therapy (PDT) is a photochemical modality approved for cancer treatment. PDT has demonstrated efficacy in early stage lung cancer and esophageal cancer. The accumulation of photosensitizers in cancer cells is necessary to enhance the therapeutic benefits of PDT; however, photosensitizers have low uptake efficiency. To overcome this limitation, a drug delivery system, such as the hemagglutinating virus of Japan envelope (HVJ-E) vector, is required. In this study, the combination of PDT and HVJ-E was investigated for enhancing the efficacy of PDT. The photosensitizers that were evaluated included 5-aminolaevulinic acid (5-ALA), protoporphyrin IX (PPIX), and HVJ-PPIX. The uptake of the photosensitizers as increased twenty-fold with the addition of HVJ-E. The cytotoxicity of conventional 5-ALA was enhanced by the addition of HVJ-E vector. In conclusion, HVJ-E vector improved the uptake of photosensitizers and the PDT effect.
Collapse
Affiliation(s)
- Makoto Sakai
- Osaka University, Graduate School of Engineering, Osaka 565-0871, Japan
| | | | | | | | | | | |
Collapse
|
32
|
Abstract
INTRODUCTION Topical photodynamic therapy (PDT) refers to topical application of a photosensitizer onto the site of skin disease which is followed by illumination and results in death of selected cells. The main problem in topical PDT is insufficient penetration of the photosensitizer into the skin, which limits its use to superficial skin lesions. In order to overcome this problem, recent studies tested liposomes as delivery systems for photosensitizers. AREAS COVERED This paper reviews the use of different types of liposomes for encapsulating photosensitizers for topical PDT. Liposomes should enhance the photosensitizers' penetration into the skin, while decreasing its absorption into systemic circulation. Only few photosensitizers have currently been encapsulated in liposomes for topical PDT: 5-aminolevulinic acid (5-ALA), temoporfin (mTHPC) and methylene blue. EXPERT OPINION Investigated liposomes enhanced the skin penetration of 5-ALA and mTHPC, reduced their systemic absorption and reduced their cytotoxicity compared with free drugs. Their high tissue penetration should enable the treatment of deep and hyperkeratotic skin lesions, which is the main goal of using liposomes. However, liposomes still do not attract enough attention as drug carriers in topical PDT. In vivo studies of their therapeutic effectiveness are needed in order to obtain enough evidence for their potential clinical use as carriers for photosensitizers in topical PDT.
Collapse
|
33
|
Pelisson MMM, Tomé FM, Beltrame M, Simioni AR, Tedesco AC. Syntheses and photochemical properties of a tribenzo-naphtho-condensed porphyrazinatozinc complex. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424603000793] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The synthesis of a zinc derivative of tribenzonaphthoporphyrazinato ( Zn -tri- PcNc ) obtained from 6-carboxymethyl-2,3-dicyanonaphthalene and phthalonitrile is described. This new phthalocyanine ( Pc ) compound was characterized by 1 H NMR, elemental analyses, IR and UV-vis. The spectroscopic analysis of this compound show an electronic spectrum in DMSO with characteristic bands in the Soret and ϱ region. Steady state and time-resolved spectral analysis revealed a fluorescence quantum yield and a fluorescence lifetime of Φf=0.22 and τf = 2.56 ns respectively, in agreement with other Pc derivatives. This compound also shows a triplet lifetime in air satured solutions of 1.06 μs and a transient with the maximum absortion located at 610 nm, 120 nm shifted to the red compared to the triplet observed by other Pc compounds.
Collapse
Affiliation(s)
- Marcelo M. M. Pelisson
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, CEP 12244-000, São José dos Campos, Brazil
| | - Fernanda M. Tomé
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, CEP 12244-000, São José dos Campos, Brazil
| | - Milton Beltrame
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, CEP 12244-000, São José dos Campos, Brazil
| | - Andreza R. Simioni
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Antonio C. Tedesco
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, Brazil
| |
Collapse
|
34
|
|
35
|
Liposomal systems as drug delivery vehicles for dermal and transdermal applications. Arch Dermatol Res 2011; 303:607-21. [DOI: 10.1007/s00403-011-1166-4] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 07/04/2011] [Accepted: 07/12/2011] [Indexed: 11/30/2022]
|
36
|
Kim CH, Chung CW, Choi KH, Yoo JJ, Kim DH, Jeong YI, Kang DH. Effect of 5-aminolevulinic acid-based photodynamic therapy via reactive oxygen species in human cholangiocarcinoma cells. Int J Nanomedicine 2011; 6:1357-63. [PMID: 21760730 PMCID: PMC3133526 DOI: 10.2147/ijn.s21395] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Cancer cells have been reported to exhibit an enhanced capacity for protoporphyrin IX (PpIX) synthesis facilitated by the administration of 5-aminolevulinic acid (ALA). We investigated the effect of ALA-based photodynamic therapy (PDT) on human cholangiocarcinoma cells (HuCC-T1). Since protoporphyrin IX (PpIX), a metabolite of ALA, can produce reactive oxygen species (ROS) under irradiation and then induce phototoxicity, ALA-based PDT is a promising candidate for the treatment of cholangiocarcinoma. When various concentrations of ALA (0.05–2 mM) were used to treat HuCC-T1 cells for 6 or 24 hours, the intracellular PpIX level increased according to the ALA concentration and treatment time. Furthermore, an increased amount of PpIX in HuCC-T1 cells induced increased production of ROS by irradiation, resulting in increased phototoxicity.
Collapse
Affiliation(s)
- Cy Hyun Kim
- National Research and Development Center for Hepatobiliary Cancer, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|
37
|
Wachowska M, Muchowicz A, Firczuk M, Gabrysiak M, Winiarska M, Wańczyk M, Bojarczuk K, Golab J. Aminolevulinic Acid (ALA) as a Prodrug in Photodynamic Therapy of Cancer. Molecules 2011. [PMCID: PMC6263343 DOI: 10.3390/molecules16054140] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aminolevulinic acid (ALA) is an endogenous metabolite normally formed in the mitochondria from succinyl-CoA and glycine. Conjugation of eight ALA molecules yields protoporphyrin IX (PpIX) and finally leads to formation of heme. Conversion of PpIX to its downstream substrates requires the activity of a rate-limiting enzyme ferrochelatase. When ALA is administered externally the abundantly produced PpIX cannot be quickly converted to its final product - heme by ferrochelatase and therefore accumulates within cells. Since PpIX is a potent photosensitizer this metabolic pathway can be exploited in photodynamic therapy (PDT). This is an already approved therapeutic strategy making ALA one of the most successful prodrugs used in cancer treatment.
Collapse
Affiliation(s)
- Małgorzata Wachowska
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Angelika Muchowicz
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Małgorzata Firczuk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Magdalena Gabrysiak
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Magdalena Winiarska
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Małgorzata Wańczyk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Kamil Bojarczuk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
- Department III, Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
- Author to whom correspondence should be addressed; E-Mail: ; Tel. +48-22-5992199; Fax: +48-22-5992194
| |
Collapse
|
38
|
Zhang LW, Fang YP, Fang JY. Enhancement techniques for improving 5-aminolevulinic acid delivery through the skin. DERMATOL SIN 2011. [DOI: 10.1016/j.dsi.2011.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
39
|
Harada Y, Ogawa K, Irie Y, Endo H, Feril LB, Uemura T, Tachibana K. Ultrasound activation of TiO2 in melanoma tumors. J Control Release 2011; 149:190-5. [DOI: 10.1016/j.jconrel.2010.10.012] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 10/05/2010] [Accepted: 10/09/2010] [Indexed: 11/28/2022]
|
40
|
da Silva ER, Faria de Freitas ZM, Brito Gitirana LD, Ricci-Júnior E. Improving the topical delivery of zinc phthalocyanine using oleic acid as a penetration enhancer:in vitropermeation and retention. Drug Dev Ind Pharm 2010; 37:569-75. [DOI: 10.3109/03639045.2010.529144] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
41
|
Rossetti FC, Depieri LV, Tedesco AC, Bentley MVLB. Fluorometric quantification of protoporphyrin IX in biological skin samples from in vitro penetration/permeation studies. BRAZ J PHARM SCI 2010. [DOI: 10.1590/s1984-82502010000400017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A fluorometric analytical method was developed for quantification of protoporphyrin IX (PpIX) in skin samples and receptor phase solution after in vitro cutaneous penetration/permeation studies. Analytical conditions used were: excitation and emission wavelengths: 400 nm and 632 nm; bandwidth: 0.5 nm; excitation and emission slits: 10/10. PpIX was recovered from two different layers of skin, the stratum corneum (SC) and the epidermis plus dermis ([E+D]), by vortex homogenization, probe and bath sonication, using DMSO as an extraction solvent. The detection and quantification limits were 0.002 and 0.005 μg/mL, respectively. The assay was linear from 0.005 - 0.5 μg/mL. The within-day and between-day assay precision and accuracy in DMSO and receptor phase solution were each studied at the two concentration levels 0.04 and 0.2 μg/mL, and 0.01 and 0.08 μg/mL, respectively. The coefficients of variation and deviation from the theoretical values were lower than 5%. The skin recovery of PpIX from SC and [E+D] layers using two different concentrations (0.5 and 1.0 μg/mL) were all above 90.0%. The method described has potential application to in vitro penetration/permeation studies of PpIX using porcine skin as a biological membrane model.
Collapse
|
42
|
Mallia RJ, Subhash N, Sebastian P, Kumar R, Thomas SS, Mathews A, Madhavan J. In vivo temporal evolution of ALA-induced normalized fluorescence at different anatomical locations of oral cavity: Application to improve cancer diagnostic contrast and potential. Photodiagnosis Photodyn Ther 2010; 7:162-75. [DOI: 10.1016/j.pdpdt.2010.06.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 06/17/2010] [Accepted: 06/18/2010] [Indexed: 10/19/2022]
|
43
|
Morrow DI, McCarron PA, Woolfson AD, Juzenas P, Juzeniene A, Iani V, Moan J, Donnelly RF. Influence of penetration enhancers on topical delivery of 5-aminolevulinic acid from bioadhesive patches. J Pharm Pharmacol 2010; 62:685-95. [DOI: 10.1211/jpp.62.06.0004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
44
|
Clementoni MT, B-Roscher M, Munavalli GS. Photodynamic photorejuvenation of the face with a combination of microneedling, red light, and broadband pulsed light. Lasers Surg Med 2010; 42:150-9. [DOI: 10.1002/lsm.20905] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
45
|
Araújo LMPDC, Thomazine JA, Lopez RFV. Development of microemulsions to topically deliver 5-aminolevulinic acid in photodynamic therapy. Eur J Pharm Biopharm 2010; 75:48-55. [PMID: 20083197 DOI: 10.1016/j.ejpb.2010.01.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 01/06/2010] [Accepted: 01/13/2010] [Indexed: 10/20/2022]
Abstract
The aim of this study was to obtain and to characterize microemulsions containing 5-aminolevulinic acid (5-ALA) and to investigate the influence of these systems in drug skin permeation for further topical photodynamic therapy (PDT). 5-ALA was incorporated in water-in-oil (W/O), bicontinuous (Bc), and oil-in-water (O/W) microemulsions obtained by the titration of ethyl oleate and PEG-8 caprylic/capric glycerides:polyglyceryl-6 dioleate (3:1) mixtures with water. Selected systems were characterized by conductivity, viscosity, size of the droplets, and drug release. The stability of the drug in the microemulsions was also assessed. Moreover, the in vitro and in vivo skin permeation of 5-ALA was investigated using diffusion cells and confocal scanning laser microscopy (CSLM), respectively. Despite the fact that the O/W microemulsion decreased the 5-ALA diffusion coefficient and retarded the drug release, it also significantly increased the in vitro drug skin permeation when compared to other 5-ALA carriers. It was observed by CSLM that the red fluorescence of the skin increased homogeneously in the deeper skin layers when the 5-ALA microemulsion was applied in vivo, probably due to the formation of the photoactive protoporphyrin IX. The microemulsion developed carried 5-ALA to the deeper skin layers, increasing the red fluorescence of the skin and indicating the potentiality of the system for topical 5-ALA-PDT.
Collapse
|
46
|
Optical molecular imaging of epidermal growth factor receptor expression to improve detection of oral neoplasia. Neoplasia 2009; 11:542-51. [PMID: 19484143 DOI: 10.1593/neo.09188] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 03/08/2009] [Accepted: 03/11/2009] [Indexed: 11/18/2022]
Abstract
BACKGROUND The development of noninvasive molecular imaging approaches has the potential to improve management of cancer. METHODS In this study, we demonstrate the potential of noninvasive topical delivery of an epidermal growth factor-Alexa 647 (EGF-Alexa 647) conjugate to image changes in epidermal growth factor receptor expression associated with oral neoplasia. We report a series of preclinical analyses to evaluate the optical contrast achieved after topical delivery of EGF-Alexa 647 in a variety of model systems, including cells, three-dimensional tissue cultures, and intact human tissue specimens using wide-field and high-resolution fluorescence imaging. Data were collected from 17 different oral cancer patients: eight pairs of normal and abnormal biopsies and nine resected tumors were examined. RESULTS The EGF-dye conjugate can be uniformly delivered throughout the oral epithelium with a penetration depth exceeding 500 microm and incubation time of less than 30 minutes. After EGF-Alexa 647 incubation, the presence of oral neoplasia is associated with a 1.5- to 6.9-fold increase in fluorescence contrast compared with grossly normal mucosa from the same patient with both wide-field and high-resolution fluorescence imaging. CONCLUSIONS Results illustrate the potential of EGF-targeted fluorescent agents for in vivo molecular imaging, a technique that may aid in the diagnosis and characterization of oral neoplasia and allow real-time detection of tumor margins.
Collapse
|
47
|
Pierre MBR, Lopez RFV, Bentley MVLB. Influence of ceramide 2 on in vitro skin permeation and retention of 5-ALA and its ester derivatives, for Photodynamic Therapy. BRAZ J PHARM SCI 2009. [DOI: 10.1590/s1984-82502009000100013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Photodynamic therapy (PDT) based on topical 5-aminolevulinic acid (5-ALA), an endogenous precursor of protoporphyrin, is an interesting approach for the treatment of skin cancer. However, 5-ALA is a hydrophilic molecule and such a characteristic limits its appropriate cutaneous penetration and retention. In this way, more lipophilic molecules, such as esterified 5-ALA derivatives, have been under investigation in order to improve the skin penetration of this molecule. Drug formulation can also alter 5-ALA skin penetration. Therefore, the aim of this work was to study the influence of ceramide 2 - the main lipid of the SC- on the cutaneous delivery of 5-ALA and its ester derivatives in vitro, using Franz diffusion cell. The skin permeation of all studied drugs was decreased in the presence of ceramide, representing a desirable characteristic in order to avoid the risk of systemic side effects. Nevertheless, the SC and [epidermis + dermis] retention after 16 h has also been decreased in the presence of ceramide, as compared to control. In conclusion, ceramide was not a good adjuvant, meaning that research of other vehicles could be useful to improve cutaneous delivery of 5-ALA.
Collapse
|
48
|
Donnelly RF, McCarron PA, Morrow DIJ, Sibani SA, Woolfson AD. Photosensitiser delivery for photodynamic therapy. Part 1: Topical carrier platforms. Expert Opin Drug Deliv 2008; 5:757-66. [PMID: 18590460 DOI: 10.1517/17425247.5.7.757] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) is a medical treatment in which a combination of a photosensitising drug and visible light causes destruction of selected cells. Due to the lack of true selectivity of preformed photosensitisers for neoplastic tissue and their high molecular weights, PDT of superficial skin lesions has traditionally been mediated by topical application of the porphyrin precursor 5-aminolevulinic acid (ALA). OBJECTIVE This article aims to review the traditional formulation-based approaches taken to topical delivery of ALA and discusses the more innovative strategies investigated for enhancement of PDT mediated by topical application of ALA and preformed photosensitisers. METHODS All of the available published print and online literature in this area was reviewed. As drug delivery of agents used in PDT is still something of an emerging field, it was not necessary to go beyond literature from the last 30 years. RESULTS/CONCLUSION PDT of neoplastic skin lesions is currently based almost exclusively on topical application of simple semisolid dosage forms containing ALA or its methyl ester. Until expiry of patents on the current market-leading products, there is unlikely to be a great incentive to engage in design and evaluation of innovative formulations for topical PDT, especially those containing the more difficult-to-deliver preformed photosensitisers.
Collapse
Affiliation(s)
- Ryan F Donnelly
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, UK.
| | | | | | | | | |
Collapse
|
49
|
Maisch T, Worlicek C, Babilas P, Landthaler M, Szeimies RM. A HCl/alcohol formulation increased 5-aminolevulinic acid skin distribution using anex vivofull thickness porcine skin model. Exp Dermatol 2008; 17:813-20. [DOI: 10.1111/j.1600-0625.2008.00705.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
50
|
Dögnitz N, Salomon D, Zellweger M, Ballini JP, Gabrecht T, Lange N, van den Bergh H, Wagnières G. Comparison of ALA- and ALA hexyl-ester-induced PpIX depth distribution in human skin carcinoma. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2008; 93:140-8. [PMID: 18818091 DOI: 10.1016/j.jphotobiol.2008.07.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 07/20/2008] [Accepted: 07/28/2008] [Indexed: 11/24/2022]
Abstract
Photodynamic therapy (PDT) based on the use of photoactivable porphyrins, such as protoporphyrin IX (PpIX), induced by the topical application of amino-levulinic acid (ALA) or its derivatives, ALA methyl-ester (m-ALA), is a treatment for superficial basal cell carcinoma (BCC), with complete response rates of over 80%. However, in the case of deep, nodular-ulcerative lesions, the complete response rates are lower, possibly related to a lower bioavailability of PpIX. Previous in vitro skin permeation studies demonstrated an increased penetration of amino-levulinic acid hexyl-ester (h-ALA) over ALA. In this study, we tested the validity of this approach in vivo on human BCCs. An emulsion containing 20% ALA (w/w) and preparations of h-ALA at different concentrations were applied topically to the normal skin of Caucasian volunteers to compare the PpIX fluorescence intensities with an optical fiber-based spectrofluorometer. In addition, the PpIX depth distribution and fluorescence intensity in 26 BCCs were investigated by fluorescence microscopy following topical application of 20% ALA and 1% h-ALA. We found that, for application times up to 24h, h-ALA is identical to ALA as a PpIX precursor with respect to PpIX fluorescence intensity, depth of penetration, and distribution in basal cell carcinoma, but has the added advantage that much smaller h-ALA concentrations can be used (up to a factor 13). We observed a non-homogenous distribution in BCCs with both precursors, independent of the histological type and depth of invasion in the dermis.
Collapse
Affiliation(s)
- Nora Dögnitz
- Laboratory of Photomedicine, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB, ISIC-GE, Building CH, Station 6, 1015 Lausanne, CH, Switzerland.
| | | | | | | | | | | | | | | |
Collapse
|