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Xin J, Wang J, Yao Y, Wang S, Zhang Z, Yao C. Improved Simulated-Daylight Photodynamic Therapy and Possible Mechanism of Ag-Modified TiO 2 on Melanoma. Int J Mol Sci 2023; 24:ijms24087061. [PMID: 37108223 PMCID: PMC10138875 DOI: 10.3390/ijms24087061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/01/2023] [Accepted: 04/09/2023] [Indexed: 04/29/2023] Open
Abstract
Simulated-daylight photodynamic therapy (SD-PDT) may be an efficacious strategy for treating melanoma because it can overcome the severe stinging pain, erythema, and edema experienced during conventional PDT. However, the poor daylight response of existing common photosensitizers leads to unsatisfactory anti-tumor therapeutic effects and limits the development of daylight PDT. Hence, in this study, we utilized Ag nanoparticles to adjust the daylight response of TiO2, acquire efficient photochemical activity, and then enhance the anti-tumor therapeutic effect of SD-PDT on melanoma. The synthesized Ag-doped TiO2 showed an optimal enhanced effect compared to Ag-core TiO2. Doping Ag into TiO2 produced a new shallow acceptor impurity level in the energy band structure, which expanded optical absorption in the range of 400-800 nm, and finally improved the photodamage effect of TiO2 under SD irradiation. Plasmonic near-field distributions were enhanced due to the high refractive index of TiO2 at the Ag-TiO2 interface, and then the amount of light captured by TiO2 was increased to induce the enhanced SD-PDT effect of Ag-core TiO2. Hence, Ag could effectively improve the photochemical activity and SD-PDT effect of TiO2 through the change in the energy band structure. Generally, Ag-doped TiO2 is a promising photosensitizer agent for treating melanoma via SD-PDT.
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Affiliation(s)
- Jing Xin
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
| | - Jing Wang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
| | - Yuanping Yao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
| | - Sijia Wang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
| | - Zhenxi Zhang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
| | - Cuiping Yao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Institute of Biomedical Analytical Technology and Instrumentation, Xi'an Jiaotong University, Xi'an 710048, China
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Actinic keratosis (review of literature). BIOMEDICAL PHOTONICS 2022. [DOI: 10.24931/2413-9432-2022-11-1-37-48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Actinic keratosis is an important medical and social problem, the correct diagnosis and treatment of which will help to avoid the development of invasive forms of cutaneous squamous cell carcinoma. With the further development of the early diagnosis of cancer, including skin cancer, the increase in human life expectancy, and the popularization of travel to exotic countries, the number of cases of actinic keratosis among the population will continue to grow. In this regard, it is important to discuss the causes and pathogenesis of the disease, the varied clinical picture of the disease, methods of non-invasive diagnostics, as well as methods of treatment, of which there are a great many in the treatment of actinic keratosis today. However, each of the methods has both advantages and disadvantages, and in the global trend towards a personalized approach to treatment, it is important to choose from the standpoint of evidence-based medicine the most suitable for each individual patient. Moreover, after treatment of actinic keratosis, relapses often occur, which are the result of insufficient diagnosis and the development of incorrect treatment tactics. The review article provides the clinical picture of actinic keratosis, diagnostic and therapeutic methods, and their comparison with each other in terms of efficacy and safety
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Zhang L, Zhang Y, Liu X, Shi L, Wang P, Zhang H, Zhou Z, Zhao Y, Zhang G, Wang X. Conventional versus daylight photodynamic therapy for acne vulgaris: A randomized and prospective clinical study in China. Photodiagnosis Photodyn Ther 2020; 31:101796. [DOI: 10.1016/j.pdpdt.2020.101796] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/19/2020] [Accepted: 04/24/2020] [Indexed: 11/24/2022]
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Reinehr CPH, Bakos RM. Actinic keratoses: review of clinical, dermoscopic, and therapeutic aspects. An Bras Dermatol 2019; 94:637-657. [PMID: 31789244 PMCID: PMC6939186 DOI: 10.1016/j.abd.2019.10.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 10/17/2019] [Indexed: 02/07/2023] Open
Abstract
Actinic keratoses are dysplastic proliferations of keratinocytes with potential for malignant transformation. Clinically, actinic keratoses present as macules, papules, or hyperkeratotic plaques with an erythematous background that occur on photoexposed areas. At initial stages, they may be better identified by palpation rather than by visual inspection. They may also be pigmented and show variable degrees of infiltration; when multiple they then constitute the so-called field cancerization. Their prevalence ranges from 11% to 60% in Caucasian individuals above 40 years. Ultraviolet radiation is the main factor involved in pathogenesis, but individual factors also play a role in the predisposing to lesions appearance. Diagnosis of lesions is based on clinical and dermoscopic examination, but in some situations histopathological analysis may be necessary. The risk of transformation into squamous cell carcinoma is the major concern regarding actinic keratoses. Therapeutic modalities for actinic keratoses include topical medications, and ablative and surgical methods; the best treatment option should always be individualized according to the patient.
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Affiliation(s)
| | - Renato Marchiori Bakos
- Department of Dermatology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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Balcere A, Rone Kupfere M, Čēma I, Krūmiņa A. Prevalence, Discontinuation Rate, and Risk Factors for Severe Local Site Reactions with Topical Field Treatment Options for Actinic Keratosis of the Face and Scalp. ACTA ACUST UNITED AC 2019; 55:medicina55040092. [PMID: 30987411 PMCID: PMC6524034 DOI: 10.3390/medicina55040092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 11/16/2022]
Abstract
Actinic keratoses (AKs) are common lesions on chronically sun damaged skin, which are morphologically characterized by lower third to full thickness atypia of epidermal keratinocytes. These lesions carry a risk of progression towards invasive squamous cell carcinoma (SCC); therefore, treatment of visible lesions and the field in case of field cancerization is recommended. Treatment of AK includes the destruction of atypical keratinocytes that clinically presents with various degrees of erythema, scaling, crusting, erosion, and other visible and subjective symptoms. Such inflammatory reactions may have an impact on the patient’s social life and have shown to decrease compliance and adherence to therapy. Additionally, as various topical treatments have been proven to be effective in treating AK, tolerability of local site reactions (LSRs) might drive the decision for appropriate treatment in an individual scenario. Therefore, we aimed to review prevalence of severe LSRs among various topical treatments for AK. In addition, we summarized discontinuation rates due to LSRs and possible therapy-unrelated risk factors for the development of LSRs with increased severity.
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Affiliation(s)
- Alise Balcere
- Department of Infectiology and Dermatology, Riga Stradiņš University, Riga, LV-1006, Latvia.
| | - Māra Rone Kupfere
- Department of Infectiology and Dermatology, Riga Stradiņš University, Riga, LV-1006, Latvia.
| | - Ingrīda Čēma
- Department of Oral Medicine, Riga Stradiņš University, Riga, LV-1007, Latvia.
| | - Angelika Krūmiņa
- Department of Infectiology and Dermatology, Riga Stradiņš University, Riga, LV-1006, Latvia.
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Szeimïes RM. Pain perception during photodynamic therapy: why is daylight PDT with methyl aminolevulinate almost pain-free? A review on the underlying mechanisms, clinical reflections and resulting opportunities. GIORN ITAL DERMAT V 2018; 153:793-799. [DOI: 10.23736/s0392-0488.18.06011-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Zhu L, Wang P, Zhang G, Zhang L, Liu X, Hu C, Yang X, Sroka R, Zhou Z, Wang X. Conventional versus daylight photodynamic therapy for actinic keratosis: A randomized and prospective study in China. Photodiagnosis Photodyn Ther 2018; 24:366-371. [DOI: 10.1016/j.pdpdt.2018.10.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 01/25/2023]
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Abstract
Topical photodynamic therapy (PDT) using daylight is effective in the treatment of actinic keratoses (AKs), offering the potential for treatment of large fields such as full face and balding scalp, but with minimal therapy-associated pain. Comparison with conventional PDT indicates similar efficacy for thin and moderate-thickness AKs, but with significantly less discomfort/pain, driving a patient preference for daylight-mediated PDT (DL-PDT) compared with conventional PDT using high-intensity office/hospital-based light sources. Treatment protocol involves the application of a photosensitizing agent without occlusion and subsequent exposure to ambient daylight within 30 min, with patients exposed to daylight for 1.5-2.0 h. Pivotal randomized controlled trials in Europe and Australia have confirmed the efficacy of methyl aminolevulinic acid (MAL) DL-PDT in comparison with conventional MAL-PDT for mild and moderate-thickness lesions on the face and scalp. Initial clearance rates of 70-89% are reported. DL-PDT using a nanoemulsion aminolevulinic acid (ALA) has recently been shown to be at least as effective as MAL DL-PDT in treating mild and moderate-thickness AKs. DL-PDT may offer a better-tolerated method for treating patients with extensive AK disease. There is emerging literature on the potential for field PDT to reduce the number of new AKs developing, potentially preventing/slowing skin cancer development. Conventional PDT remains established as a therapy for Bowen's disease (squamous cell carcinoma in situ), superficial and certain thin basal cell carcinomas (BCCs), and AKs. The evidence for the use of DL-PDT beyond AK is limited, although has been reported in actinic cheilitis, superficial BCC, and acne and cutaneous leishmaniasis. There is emerging interest in combination therapy for AK, using one or more field therapies such as DL-PDT as an option to complement with localized treatment for residual lesions. We review current recommendations and consider the appropriate place for DL-PDT in our treatment armamentarium.
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de Oliveira ECV, da Motta VRV, Pantoja PC, Ilha CSDO, Magalhães RF, Galadari H, Leonardi GR. Actinic keratosis - review for clinical practice. Int J Dermatol 2018; 58:400-407. [PMID: 30070357 DOI: 10.1111/ijd.14147] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 06/17/2018] [Accepted: 06/20/2018] [Indexed: 12/18/2022]
Abstract
Actinic keratosis (AK) is a lesion that arises as a result of excessive exposure to solar radiation and appearing predominantly on Fitzpatrick phototype I and II skin. Given that some AKs evolve into squamous cell carcinoma, these lesions are considered premalignant in nature, occurring mostly in elderly men and immunosuppressed individuals chronically exposed to ultraviolet (UV) radiation. There are several mechanisms for the formation of AKs; among them are oxidative stress, immunosuppression, inflammation, altered proliferation and dysregulation of cell growth, impaired apoptosis, mutagenesis, and human papillomavirus (HPV). Through the understanding of these mechanisms, several treatments have emerged. Among the options for AK treatment, the most commonly used include 5-fluorouracil (5-FU), cryotherapy, diclofenac, photodynamic therapy (PDT), imiquimod (IQ), retinoids, and ingenol mebutate (IM). There have been recent advances in the treatment options that have seen the emergent use of newer agents such as resiquimod, betulinic acid, piroxicam, and dobesilate. The combination between therapies has presented relevant results with intention to reduce duration of therapy and side effects. All AK cases must be treated because of their propensity to transform into malignancy and further complicate treatment. In addition to medical or surgical care, education about sun exposure prevention remains the best and most cost-effective method for AK prevention. The objective of this article is to conduct a literature review of the clinical presentation of AK including advances in treatment options available.
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Affiliation(s)
- Erika C V de Oliveira
- Medical Clinic Post Graduation Program of the Medical Sciences Faculty, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
| | - Valéria R V da Motta
- Medical Clinic Post Graduation Program of the Medical Sciences Faculty, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
| | - Paola C Pantoja
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
| | - Carolina S de O Ilha
- Dermatology Medical Residence Program of the Medical Sciences Faculty, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
| | - Renata F Magalhães
- Dermatology Department in the Medical Sciences Faculty, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
| | - Hassan Galadari
- Department of Dermatology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Gislaine R Leonardi
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP- Brazil, Campinas, Brazil
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