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Bajek D, Sharpe K, Eadie E. Black ceiling tiles reduce occupational ultraviolet light exposure from phototherapy cabinets. Clin Exp Dermatol 2024; 49:893-895. [PMID: 38494852 DOI: 10.1093/ced/llae102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/25/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Phototherapy clinics administer ultraviolet (UV) light to patients using phototherapy cabinets. The UV radiation from these cabinets is reflected on the white ceiling tiles of the clinic and is then redirected toward both staff and patients in the area. This is particularly problematic for clinical technologists who must undertake dosimetry in these areas and have a specific time (often as low as 30 min) before they reach their maximum exposure limit. By replacing white tiles with black ones, which absorb any stray radiation, we were able to reduce stray reflection by almost 90%, prolonging the time to maximum exposure by nearly 10 times. We present these findings to encourage other similar clinics to undertake the simple protocols outlined in this article, which will significantly improve staff and patient safety.
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Affiliation(s)
- David Bajek
- Photobiology Unit, NHS Tayside, Ninewells Hospital, Dundee, UK
- School of Medicine, University of Dundee, Dundee, UK
| | | | - Ewan Eadie
- Photobiology Unit, NHS Tayside, Ninewells Hospital, Dundee, UK
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2
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Wang E, Ahad T, Liu YA, Lee TK, Lui H, Crawford RI, Kalia S. Incidence and profile of skin cancers in patients following ultraviolet phototherapy without psoralens: A retrospective cohort study. J Am Acad Dermatol 2024; 90:759-766. [PMID: 38070541 DOI: 10.1016/j.jaad.2023.11.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND Psoralen + ultraviolet-A (PUVA) is associated with photocarcinogenesis. However, carcinogenic risk with other ultraviolet phototherapies remains unclear. OBJECTIVE Evaluate whether phototherapy without psoralens increases skin cancer risk. METHODS Retrospective cohort study of patients treated at a teaching-hospital phototherapy center (1977-2018). Skin cancer records were validated against pathology reports. Age-standardized incidence rates (ASIRs) of skin cancer were evaluated for gender, skin phototype, diagnosis, ultraviolet modality, anatomical site; and compared to provincial population incidence rates (2003). RESULTS In total, 3506 patients treated with broadband-ultraviolet-B, narrowband-UVB and/or combined UVAB were assessed with a mean follow-up of 7.3 years. Majority of patients had psoriasis (60.9%) or eczema (26.4%). Median number of treatments was 43 (1-3598). Overall, 170 skin cancers (17 melanoma, 33 squamous cell carcinoma and 120 basal cell carcinoma) occurred in 79 patients. Patient-based and tumor-based ASIR of skin cancer was 149 (95% CI: 112-187)/100,000 and 264 (219-309)/100,000 person-years, respectively. There was no significant difference between tumor-based ASIRs for melanoma, squamous cell carcinoma, and basal cell carcinoma compared to the general population; or in phototherapy patients with-psoriasis or eczema; or immunosuppressants. No cumulative dose-response correlation between UVB and skin cancer was seen. LIMITATIONS Treatment and follow-up duration. CONCLUSION No increased risk of melanoma and keratinocyte cancer was found with phototherapy.
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Affiliation(s)
- Elle Wang
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada; Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
| | - Tashmeeta Ahad
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada; Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
| | - Yi A Liu
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tim K Lee
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada; Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada; Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
| | - Harvey Lui
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada; Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
| | - Richard I Crawford
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sunil Kalia
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada; Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada; Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada; BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.
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3
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Kurz B, Berneburg M, Bäumler W, Karrer S. Phototherapy: Theory and practice. J Dtsch Dermatol Ges 2023; 21:882-897. [PMID: 37485907 DOI: 10.1111/ddg.15126] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 07/25/2023]
Abstract
Despite the development of highly effective biologics for skin diseases such as psoriasis or atopic dermatitis, UVA and UVB therapy, alone or in combination, are still essential components of various guidelines. Phototherapy is not only a first-line treatment and highly effective for a number of skin diseases, but is also economical and has few side effects. The targeted use of UVA and UVB, if necessary, in combination with the photosensitizer psoralen in the context of PUVA therapy, enables the dermatologist to effectively treat a wide variety of skin diseases. Indications for phototherapy include epidermal diseases such as atopic dermatitis, psoriasis and vitiligo, as well as photodermatoses, mycosis fungoides, graft-versus-host disease and deep dermal diseases such as scleroderma. This article reviews the physical principles, molecular mechanisms, current treatment regimens, and individual indications for phototherapy and photochemotherapy.
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Affiliation(s)
- Bernadett Kurz
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Mark Berneburg
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Bäumler
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
| | - Sigrid Karrer
- Department for Dermatology, University Hospital Regensburg, Regensburg, Germany
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4
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Kurz B, Berneburg M, Bäumler W, Karrer S. Phototherapie in Theorie und Praxis. J Dtsch Dermatol Ges 2023; 21:882-898. [PMID: 37574671 DOI: 10.1111/ddg.15126_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/12/2023] [Indexed: 08/15/2023]
Abstract
ZusammenfassungDie Therapie oder Kombinationstherapie mit UV‐A‐ oder UV‐B‐Strahlen ist trotz der Entwicklung hochwirksamer Biologika bei Hauterkrankungen wie Psoriasis oder atopischer Dermatitis nach wie vor unverzichtbarer Bestandteil verschiedener Leitlinienempfehlungen. Die Phototherapie ist nicht nur eine sehr effektive Erstlinientherapie bei verschiedenen Hauterkrankungen, sondern auch kostengünstig und nebenwirkungsarm. Der gezielte Einsatz von UV‐A und UV‐B, gegebenenfalls auch in Kombination mit dem Photosensibilisator Psoralen im Rahmen einer PUVA‐Therapie, ermöglicht dem Dermatologen eine effektive Behandlung verschiedener Hautkrankheiten. Indikationen für die Phototherapie sind epidermale Erkrankungen wie die atopische Dermatitis, die Psoriasis und die Vitiligo, ferner Photodermatosen, die Mycosis fungoides, die Graft‐versus‐Host‐Erkrankung sowie tiefe dermale Erkrankungen wie die Sklerodermie. Dieser Artikel gibt einen Überblick über die physikalischen Grundlagen, die molekularen Mechanismen, die derzeitigen Behandlungsmethoden und die einzelnen Indikationen für die Phototherapie und die Photochemotherapie.
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Affiliation(s)
- Bernadett Kurz
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Mark Berneburg
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Wolfgang Bäumler
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
| | - Sigrid Karrer
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg
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5
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Suggested Guidelines for the Treatment of Mycosis Fungoides in Countries with Limited Resources. Dermatol Res Pract 2023; 2023:1360740. [PMID: 36762366 PMCID: PMC9904957 DOI: 10.1155/2023/1360740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 02/04/2023] Open
Abstract
The treatment options for mycosis fungoides (MF) have been expanding but unfortunately many of the currently used treatment modalities are unavailable in Egypt and other African/Arab countries. In addition, there is a lack of consensus on the treatment of hypopigmented MF (HMF), which is a frequently encountered variant in our population. We aimed to develop regional treatment guidelines based on the international guidelines but modified to encompass the restricted treatment availability and our institutional experience. Special attention was also given to studies conducted on patients with skin phototype (III-IV). Treatment algorithm was formulated at Ain-Shams cutaneous lymphoma clinic through the collaboration of dermatologists, haematologists, and oncologists. Level of evidence is specified for each treatment option. For HMF, phototherapy is recommended as a first line treatment, while low-dose methotrexate is considered a second line. For early classical MF, we recommend Psoralen-ultraviolet A (PUVA), which is a well-tolerated treatment option in dark phenotype. Addition of either retinoic acid receptor (RAR) agonist and/or methotrexate is recommended as a second line. Total skin electron beam (TSEB) is considered a third-line option. For advanced stage, PUVA plus RAR agonist and/or methotrexate is recommended as first line, TSEB or monochemotherapy is considered a second line option. Polychemotherapy is regarded as a final option. All patients with complete response (CR) enter a maintenance and follow-up schedule. We suggest a practical algorithm for the treatment of MF for patients with dark phenotype living in countries with limited resources.
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Kothari R, Szepietowski JC, Bagot M, Sandhu S, Patil A, Grabbe S, Goldust M. Mycosis fungoides in pediatric population: comprehensive review on epidemiology, clinical presentation, and management. Int J Dermatol 2022; 61:1458-1466. [PMID: 35193164 DOI: 10.1111/ijd.16098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/29/2021] [Accepted: 01/06/2022] [Indexed: 12/26/2022]
Abstract
Mycosis fungoides (MF) is the most common type of cutaneous T-cell lymphoma. However, it is rare in pediatric population. Most of the cases of pediatric MF present with hypopigmented patches and/or various other forms, which may often mimic common childhood dermatoses, thereby causing a delay in the diagnosis. There are no established treatment guidelines for pediatric MF. As the progression of childhood MF is extremely rare and it has an indolent course, it is usually diagnosed at an early stage (IA, IB, IIA), and hence phototherapy with a response rate of >80% is a well-established effective treatment in children. However, as recurrences are frequently seen on stopping the therapies, a maintenance regimen and long-term follow-up is equally important. This article reviews the epidemiological factors, clinical presentations, diagnosis, and various treatment modalities used in pediatric MF. We analyzed and compared the data of almost 616 childhood MF cases from various studies undertaken from 1988 to 2021.
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Affiliation(s)
- Rohit Kothari
- Department of Dermatology, Armed Forces Medical College, Pune, India
| | - Jacek C Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - Martine Bagot
- Faculté de Médecine Paris Diderot, AP-HP, Service de Dermatologie, Hôpital Saint-Louis, Paris, France
| | - Sunmeet Sandhu
- Department of Dermatology, Command Hospital Air Force, Bangalore, India
| | - Anant Patil
- Department of Pharmacology, Dr. DY Patil Medical College, Navi Mumbai, India
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Mohamad Goldust
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
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7
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Rodrigues JL, Gomes D, Rodrigues LR. Challenges in the Heterologous Production of Furanocoumarins in Escherichia coli. Molecules 2022; 27:molecules27217230. [PMID: 36364054 PMCID: PMC9656933 DOI: 10.3390/molecules27217230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 12/02/2022] Open
Abstract
Coumarins and furanocoumarins are plant secondary metabolites with known biological activities. As they are present in low amounts in plants, their heterologous production emerged as a more sustainable and efficient approach to plant extraction. Although coumarins biosynthesis has been positively established, furanocoumarin biosynthesis has been far more challenging. This study aims to evaluate if Escherichia coli could be a suitable host for furanocoumarin biosynthesis. The biosynthetic pathway for coumarins biosynthesis in E. coli was effectively constructed, leading to the production of umbelliferone, esculetin and scopoletin (128.7, 17.6, and 15.7 µM, respectively, from tyrosine). However, it was not possible to complete the pathway with the enzymes that ultimately lead to furanocoumarins production. Prenyltransferase, psoralen synthase, and marmesin synthase did not show any activity when expressed in E. coli. Several strategies were tested to improve the enzymes solubility and activity with no success, including removing potential N-terminal transit peptides and expression of cytochrome P450 reductases, chaperones and/or enzymes to increase dimethylallylpyrophosphate availability. Considering the results herein obtained, E. coli does not seem to be an appropriate host to express these enzymes. However, new alternative microbial enzymes may be a suitable option for reconstituting the furanocoumarins pathway in E. coli. Nevertheless, until further microbial enzymes are identified, Saccharomyces cerevisiae may be considered a preferred host as it has already been proven to successfully express some of these plant enzymes.
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Affiliation(s)
- Joana L. Rodrigues
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: ; Tel.: +35-125-360-4423
| | - Daniela Gomes
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Lígia R. Rodrigues
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
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8
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Granahan A, McCavana J, Lally A, Morgan I, Fitzgerald S, Moriarty B. A review of the selection process and decontamination methods with the use of face shields in UV phototherapy during the SARS‐CoV‐2 pandemic. SKIN HEALTH AND DISEASE 2022; 2:e97. [PMID: 35941939 PMCID: PMC9348456 DOI: 10.1002/ski2.97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/08/2022]
Abstract
Targeted ultraviolet (UV) phototherapy has been used in the management of a wide variety of dermatological clinical conditions including moderate to severe psoriasis unresponsive to topical therapies, vitiligo, severe atopic dermatitis and lymphoproliferative disorders. To date there are no uniform, standardised guidelines for the selection and decontamination process for UV personal protective equipment (PPE) and facial shields used in phototherapy. In the current climate, Coronavirus 2019 (COVID‐19) pandemic, standards regarding all decontamination and disinfection processes are under significant scrutiny. In terms of the UV‐PPE and facial shields used in phototherapy, careful disinfection procedures need to be implemented to ensure that the decontamination practice is effective enough to neutralise the virulent virus whilst maintaining maximal protection to the user from UV‐rays and safeguard the equipment from damage during the cleaning process. The aim of this report is to provide an evidence based review of the current and international practice standards guiding the selection, use and decontamination processes of UV facial shields in phototherapy. The complications and concerns that the COVID‐19 pandemic has had on this practice is highlighted. As such, we performed a comprehensive evaluation of the literature to provide recommendations as to the most effective, time efficient and safest practices for disinfection and decontamination of UV facial shields used in phototherapy during these unprecedented times.
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Affiliation(s)
- A. Granahan
- Department of Dermatology St. Vincent’s University Hospital Dublin Ireland
| | - J. McCavana
- Department of Medical Physics St. Vincent’s University Hospital Dublin Ireland
| | - A. Lally
- Department of Dermatology St. Vincent’s University Hospital Dublin Ireland
| | - I. Morgan
- Department of Dermatology St. Vincent’s University Hospital Dublin Ireland
| | - S. Fitzgerald
- Medical Microbiology and Infection Control St. Vincent’s University Hospital Dublin Ireland
| | - B. Moriarty
- Department of Dermatology St. Vincent’s University Hospital Dublin Ireland
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9
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Wolf P. The 2022 British guidelines for narrowband ultraviolet B phototherapy: an absolute necessity for anyone administering or prescribing phototherapy. Br J Dermatol 2022; 187:285-286. [PMID: 35818132 PMCID: PMC9542627 DOI: 10.1111/bjd.21735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 06/21/2022] [Indexed: 11/29/2022]
Abstract
Linked Article:Goulden et al. Br J Dermatol 2022; 187:295–308.
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Affiliation(s)
- Peter Wolf
- Department of Dermatology, Medical University of Graz, Graz, Austria
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10
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Finlayson L, Barnard IRM, McMillan L, Ibbotson SH, Brown CTA, Eadie E, Wood K. Depth Penetration of Light into Skin as a Function of Wavelength from 200 to 1000 nm. Photochem Photobiol 2022; 98:974-981. [PMID: 34699624 DOI: 10.1111/php.13550] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/23/2021] [Indexed: 12/13/2022]
Abstract
An increase in the use of light-based technology and medical devices has created a demand for informative and accessible data showing the depth that light penetrates into skin and how this varies with wavelength. These data would be particularly beneficial in many areas of medical research and would support the use and development of disease-targeted light-based therapies for specific skin diseases, based on increased understanding of wavelength-dependency of cutaneous penetration effects. We have used Monte Carlo radiative transport (MCRT) to simulate light propagation through a multi-layered skin model for the wavelength range of 200-1000 nm. We further adapted the simulation to compare the effect of direct and diffuse light sources, varying incident angles and stratum corneum thickness. The lateral spread of light in skin was also investigated. As anticipated, we found that the penetration depth of light into skin varies with wavelength in accordance with the optical properties of skin. Penetration depth of ultraviolet radiation was also increased when the stratum corneum was thinner. These observations enhance understanding of the wavelength-dependency and characteristics of light penetration of skin, which has potential for clinical impact regarding optimizing light-based diagnostic and therapeutic approaches for skin disease.
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Affiliation(s)
- Louise Finlayson
- SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Isla R M Barnard
- SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Lewis McMillan
- SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Sally H Ibbotson
- Photobiology Unit, Ninewells Hospital, University of Dundee, Dundee, UK
| | - C Tom A Brown
- SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Ewan Eadie
- Photobiology Unit, Ninewells Hospital, NHS Tayside, Dundee, UK
| | - Kenneth Wood
- SUPA School of Physics and Astronomy, University of St Andrews, St Andrews, UK
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Goulden V, Ling TC, Babakinejad P, Dawe R, Eadie E, Fassihi H, Fityan A, Garibaldinos T, Ibbotson SH, Novakovic L, Rush E, Weatherhead SC, Whitehouse H, Hashme M, Mustapa MFM, Exton LS. British Association of Dermatologists and British Photodermatology Group guidelines for Narrowband Ultraviolet B Phototherapy 2022. Br J Dermatol 2022; 187:295-308. [DOI: 10.1111/bjd.21669] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2021] [Indexed: 11/28/2022]
Affiliation(s)
| | - Tsui C. Ling
- Photobiology Unit, Dermatology Centre University of Manchester and Salford Royal NHS Foundation Trust Manchester M6 8HD UK
| | | | - Robert Dawe
- Scottish Photobiology Service, Photobiology Unit University of Dundee & NHS Tayside Ninewells Hospital & Medical School, Dundee DD1 9SY UK
| | - Ewan Eadie
- Scottish Photobiology Service, Photobiology Unit University of Dundee & NHS Tayside Ninewells Hospital & Medical School, Dundee DD1 9SY UK
| | - Hiva Fassihi
- Department of Photodermatology, St John's Institute of Dermatology, Guy’s and St Thomas’ NHS Foundation Trust London SE1 9RT UK
| | - Adam Fityan
- University Hospital Southampton NHS Foundation Trust Southampton SO10 6YD UK
| | - Trish Garibaldinos
- Department of Photodermatology, St John's Institute of Dermatology, Guy’s and St Thomas’ NHS Foundation Trust London SE1 9RT UK
| | - Sally H. Ibbotson
- Scottish Photobiology Service, Photobiology Unit University of Dundee & NHS Tayside Ninewells Hospital & Medical School, Dundee DD1 9SY UK
| | - Ljuba Novakovic
- Department of Photodermatology, St John's Institute of Dermatology, Guy’s and St Thomas’ NHS Foundation Trust London SE1 9RT UK
- Queen Elizabeth Hospital, Lewisham & Greenwich NHS Trust London SE18 4QH UK
| | | | | | | | - Maria Hashme
- Clinical Standards Unit, British Association of Dermatologists, Willan House London W1T 5HQ UK
| | - M. Firouz Mohd Mustapa
- Clinical Standards Unit, British Association of Dermatologists, Willan House London W1T 5HQ UK
| | - Lesley S. Exton
- Clinical Standards Unit, British Association of Dermatologists, Willan House London W1T 5HQ UK
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12
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Smith IL, Gilberts R, Brown S, Fernandez C, Nixon J, Reynolds C, Smith C, Lear JT, Sunderland L, Green C, Goodfield M, Cowdell F, Hampton P, Barker A, Vargas-Palacios A, Tubeuf S, Wittmann M. Comparison of ALitretinoin with PUVA as the first-line treatment in patients with severe chronic HAnd eczema (ALPHA): study protocol for a randomised controlled trial. BMJ Open 2022; 12:e060029. [PMID: 35197358 PMCID: PMC8867308 DOI: 10.1136/bmjopen-2021-060029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Hand eczema (HE) is one of the most common skin disorders and an important cause for morbidity and occupational disability. The 1-year prevalence of HE is estimated to be up to 10% and it is estimated that 5%-7% of those develop severe chronic HE. However, current clinical evidence is not compelling enough to guide clinical practice. In a survey among 194 UK dermatologists the most frequent first choice approaches were psoralen combined with ultraviolet A (UVA) treatment (PUVA), oral steroids and alitretinoin (AL). When asked which strategy was most efficient for long-term outcome 20% of clinicians indicated they did not know; 43% of clinicians reported AL and 30% reported PUVA. METHODS AND ANALYSIS ALPHA is a multicentre, open, prospective, two-arm parallel group, randomised controlled trial comparing PUVA and AL with a planned sample size re-estimation. Between 500 and 780 participants will be randomised on a 1:1 basis. The physician's global assessment (PGA) will direct treatment after randomisation, non-responders will be treated according to usual clinical practice; providing valuable pilot data on second line therapeutic approaches to inform future trials.Assessments will be conducted up to 52 weeks post randomisation. The primary outcome measure is the Hand Eczema Severity Index at 12 weeks. Secondary outcome measures include modified Total Lesion Symptom Score, PGA, time to relapse, patient reported outcome measures and DNA extraction and assessment of genetic variants. A substudy on molecular inflammatory mediators will provide information on subgroup specific treatment responses. Photographs will be taken and HE severity assessed by a central review panel. ETHICS AND DISSEMINATION Ethics approval was obtained from Leeds West Research Ethics Committee (14/YH/1259).Trial results will be disseminated at relevant clinical conferences and societies, published in peer-reviewed journals and through relevant patient groups. TRIAL REGISTRATION NUMBER ISRCTN80206075.
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Affiliation(s)
- Isabelle L Smith
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Rachael Gilberts
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Sarah Brown
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Catherine Fernandez
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Jane Nixon
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Catherine Reynolds
- Clinical Trials Research Unit, Leeds Institute for Clinical Trials Research, University of Leeds, Leeds, UK
| | - Catherine Smith
- St John's Institute of Dermatology, Guy's & St Thomas's NHS Foundation Trust, London, UK
| | - John T Lear
- Department of Dermatology, Salford Royal NHS Foundation Trust, Manchester, UK
- MAHSC, University of Manchester, Manchester, UK
| | | | - Cathy Green
- Department of Dermatology, Ninewells Hospital, Dundee, UK
| | - Mark Goodfield
- Department of Dermatology, Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Fiona Cowdell
- Faculty of Health Education and Life Sciences, Birmingham City University, Birmingham, UK
| | - Philip Hampton
- Department of Dermatology, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle Upon Tyne, UK
| | - Amy Barker
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Armando Vargas-Palacios
- Academic Unit of Health Economics, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
| | - Sandy Tubeuf
- Institute of Health and Society, Faculté de Santé Publique, Clos Chapelle-aux-Champs, Brussels, Belgium
- Institute of Economic and Social Research (IRES) - LIDAM, Collège L. H. Dupriez, Louvain-la-Neuve, Belgium
| | - Miriam Wittmann
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
- NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton Hospital, Leeds, UK
- Department of Dermatology, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
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13
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Yen H, Huang C, Huang I, Hung W, Su H, Yen H, Tai C, Haw WY, Flohr C, Yiu ZZ, Chi C. Systematic review and critical appraisal of psoriasis clinical practice guidelines: a Global Guidelines in Dermatology Mapping Project (GUIDEMAP). Br J Dermatol 2022; 187:178-187. [DOI: 10.1111/bjd.21047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/25/2022] [Accepted: 02/06/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Hsi Yen
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
- College of Medicine, Chang Gung University Taoyuan Taiwan
| | - Chun‐Hsien Huang
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
| | - I‐Hsin Huang
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
| | - Wei‐Kai Hung
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
| | - Hsing‐Jou Su
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
| | - Hsuan Yen
- Department of Dermatology, Wan Fang Hospital, Taipei Medical University Taipei Taiwan
| | - Cheng‐Chen Tai
- Medical Library, Department of Medical Education, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
| | - William Y. Haw
- Dermatology Centre, Salford Royal NHS Foundation Trust, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre Manchester UK
- Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester Manchester UK
| | - Carsten Flohr
- Unit for Population‐Based Dermatology Research, St John’s Institute of Dermatology, King’s College London and Guy’s & St Thomas’ Hospital NHS Foundation Trust London UK
| | - Zenas Z.N. Yiu
- Dermatology Centre, Salford Royal NHS Foundation Trust, Manchester NIHR Biomedical Research Centre, Manchester Academic Health Science Centre Manchester UK
- Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester Manchester UK
| | - Ching‐Chi Chi
- Department of Dermatology, Chang Gung Memorial Hospital Linkou Taoyuan Taiwan
- College of Medicine, Chang Gung University Taoyuan Taiwan
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14
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Kai Lin R, Venkatesan P, Hsuan Yeh C, Chien CM, Lin TS, Lin CC, Lin CC, Lai PS. Effective topical treatments of innovative NNO-tridentate vanadium (IV) complexes-mediated photodynamic therapy in psoriasis-like mice model. J Mater Chem B 2022; 10:4759-4770. [DOI: 10.1039/d2tb00344a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Psoriasis is a chronic inflammatory skin disease that can significantly impact the quality of human life. Various drug treatments with long-term severe side effects limit those drugs usage. Photodynamic therapy...
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15
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Lerche CM, Al-Chaer RN, Glud M, Philipsen PA, Wulf HC. Few X-ray and PUVA treatments accelerate photocarcinogenesis in hairless mice. Photochem Photobiol Sci 2021; 20:1299-1307. [PMID: 34559384 DOI: 10.1007/s43630-021-00105-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
PUVA is a treatment that combines oral methoxypsoralen (8-MOP) with ultraviolet radiation A (UVA). It is used for severe psoriasis and the early stages of T-cell lymphoma. X-rays are an effective treatment for skin cancers. Both treatments are in higher doses used to treat skin malignancies and simultaneously increase the risk of keratinocyte cancer. The main objective of this study was to test whether a few PUVA or X-ray treatments could delay the development of ultraviolet radiation (UVR)-induced skin tumors in a well-established hairless mouse model. Three groups of immunocompetent mice (total, N = 75) were included in the study. All groups were UVR-exposed during the study period. In addition, one group was treated with PUVA and another group was treated with X-rays at days 45, 52, 90 and 97. A control group was treated with UVR only. We recorded when the first, second and third skin tumors were induced in each mouse. Skin tumors developed significantly earlier in both the PUVA and X-ray groups (median, 188 days) than in the control mice (median, 215 days; p < 0.001). Therefore, a few X-ray and PUVA treatments both significantly accelerated the development of skin tumors in hairless mice, compared to UVR controls. Neither treatment showed a delay of UVR-induced skin tumors and caution should be exercised before applying these treatments to sun-damaged skin.
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Affiliation(s)
- Catharina M Lerche
- Department of Dermatology, D92, Copenhagen University Hospital, Nielsine Nielsensvej 17, Entrance 9, 2400, Copenhagen, Denmark. .,Department of Pharmacy, University of Copenhagen, Copenhagen, Universitetsparken 2, 2100, Denmark.
| | - Rami Nabil Al-Chaer
- Department of Dermatology, D92, Copenhagen University Hospital, Nielsine Nielsensvej 17, Entrance 9, 2400, Copenhagen, Denmark
| | - Martin Glud
- Department of Dermatology, D92, Copenhagen University Hospital, Nielsine Nielsensvej 17, Entrance 9, 2400, Copenhagen, Denmark
| | - Peter Alshede Philipsen
- Department of Dermatology, D92, Copenhagen University Hospital, Nielsine Nielsensvej 17, Entrance 9, 2400, Copenhagen, Denmark
| | - Hans Christian Wulf
- Department of Dermatology, D92, Copenhagen University Hospital, Nielsine Nielsensvej 17, Entrance 9, 2400, Copenhagen, Denmark
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16
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Liang Y, Xie L, Liu K, Cao Y, Dai X, Wang X, Lu J, Zhang X, Li X. Bergapten: A review of its pharmacology, pharmacokinetics, and toxicity. Phytother Res 2021; 35:6131-6147. [PMID: 34347307 DOI: 10.1002/ptr.7221] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/23/2021] [Accepted: 07/03/2021] [Indexed: 12/15/2022]
Abstract
Bergapten is a natural furocoumarin, also known as 5-methoxypsoralen, and its medicinal value has been paid more and more attention. By sorting out the pharmacological literature of bergapten, we found that bergapten has a wide range of pharmacological effects, including neuroprotection, organ protection, anticancer, antiinflammatory, antimicrobial, and antidiabetes effects. However,bergapten has complex impacts on the hepatic metabolic enzyme. Moreover, pharmacokinetic studies showed that bergapten has higher absolute bioavailability and can cross the blood-brain barrier and has a great potential for treating brain disease, but the mechanism needs further clarification to make greater use of its ability to treat brain diseases. Furthermore, the phototoxicity of bergapten combined with ultraviolet light has always been mentioned. In view of its wide range of pharmacological activities, bergapten is expected to be a potential drug candidate for the treatment of diabetes and diabetes-induced osteoporosis, epilepsy, Alzheimer's disease, depression, and cancer. However, further studies are needed to elucidate its molecular mechanisms and targets. The phototoxicity of bergapten as a side effect should be further avoided. On the other hand, the photoactivation of bergapten in the anticancer aspect can be better utilized.
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Affiliation(s)
- Youdan Liang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Long Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kai Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Cao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaolin Dai
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xian Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Lu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xumin Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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17
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Bertling J, Thom KA, Geenen S, Jeuken H, Presser L, Müller TJJ, Gilch P. Synthesis and Photophysics of Water-Soluble Psoralens with Red-Shifted Absorption. Photochem Photobiol 2021; 97:1534-1547. [PMID: 34181757 DOI: 10.1111/php.13480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/24/2021] [Indexed: 11/26/2022]
Abstract
8-Methoxypsoralen (8-MOP) serves as a PUVA (psoralen + UV-A) agent in the treatment of certain skin diseases. Derivatives of 8-MOP with cationic aromatic substituents at the five positions were synthesized and characterized by steady-state, femtosecond and nanosecond spectroscopy as well as cyclic voltammetry. The aromatic substituents' positive charge increases the water solubility and the affinity toward intercalation into DNA. The aromatic substituents were supposed to lower the psoralen S1 energy and thereby suppress a photo-induced electron transfer (PET) with guanine-bearing DNA. Such a suppression of this PET is expected to increase the propensity of psoralens to photo-addition to DNA. For derivatives bearing methylpyridinium residues, femtosecond spectroscopy revealed an intramolecular PET occurring on the picosecond time scale. This PET precludes the population of the triplet state. As triplet states are the precursor state for the photo-addition to DNA, their intermolecular PET renders these derivatives ineffective in terms of PUVA. For two derivatives bearing trimethylphenylammonium moieties, such an intramolecular PET does not occur and the triplet state is populated. Surprisingly, these compounds also exhibit no PUVA activity. Based on these findings, implications for further optimization of PUVA agents are discussed.
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Affiliation(s)
- Janina Bertling
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Kristoffer A Thom
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Sarah Geenen
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Hannah Jeuken
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Lysander Presser
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Thomas J J Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Peter Gilch
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
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18
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Eleftheriadou V, Atkar R, Batchelor J, McDonald B, Novakovic L, Patel JV, Ravenscroft J, Rush E, Shah D, Shah R, Shaw L, Thompson AR, Hashme M, Exton LS, Mohd Mustapa MF, Manounah L. British Association of Dermatologists guidelines for the management of people with vitiligo 2021. Br J Dermatol 2021; 186:18-29. [PMID: 34160061 DOI: 10.1111/bjd.20596] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2021] [Indexed: 11/29/2022]
Affiliation(s)
- V Eleftheriadou
- Queen Elizabeth Hospital, Mindelsohn Way, Birmingham, B15 2TH, UK
| | - R Atkar
- Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK
| | - J Batchelor
- Centre for Evidence Based Dermatology, University of Nottingham, Nottingham, NG7 2NR, UK
| | - B McDonald
- The Royal London Hospital, Whitechapel Road, Whitechapel, London, E1 1FR, UK
| | - L Novakovic
- Queen Elizabeth Hospital, Department of Dermatology, Lewisham and Greenwich NHS Trust, London, SE18 4QH, UK.,St John's Institute of Dermatology, Department of Photodermatology, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT, UK
| | | | | | - E Rush
- Patient representative.,Vitiligo Support UK, London, UK
| | - D Shah
- Amersham Hospital, Amersham, HP7 0JD, UK
| | - R Shah
- Central & North West London NHS Trust, London, NW1 2PL, UK.,British Psychological Society, Leicester, LE1 7DR, UK
| | - L Shaw
- Bristol Royal Infirmary, Bristol, BS2 8HW, UK
| | - A R Thompson
- British Psychological Society, Leicester, LE1 7DR, UK.,South Wales Clinical Psychology Training, Cardiff University, Cardiff, CF10 3AT, UK
| | - M Hashme
- British Association of Dermatologists, Willan House, London, W1T 5HQ, UK
| | - L S Exton
- British Association of Dermatologists, Willan House, London, W1T 5HQ, UK
| | - M F Mohd Mustapa
- British Association of Dermatologists, Willan House, London, W1T 5HQ, UK
| | - L Manounah
- British Association of Dermatologists, Willan House, London, W1T 5HQ, UK
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19
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TaaI/Cdx-2 AA Variant of VDR Defines the Response to Phototherapy amongst Patients with Psoriasis. Life (Basel) 2021; 11:life11060567. [PMID: 34208603 PMCID: PMC8234577 DOI: 10.3390/life11060567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/23/2021] [Accepted: 06/14/2021] [Indexed: 11/17/2022] Open
Abstract
1,25-dihydroxyvitamin-D3 plays a central role in the immune system via binding to the vitamin D receptor. VDR polymorphisms have been associated with multiple autoimmune disorders, including psoriasis. Until now, five VDR polymorphisms, FokI, ApaI, BsmI, TaqI and TaaI/Cdx2, have been studied in psoriasis, with contradicting results. Therefore, this study aimed to evaluate the association of VDR polymorphisms with susceptibility to psoriasis, effectiveness of NB-UVB phototherapy and concentration of proinflammatory cytokines and vitamin D amongst the Polish population. VDR polymorphisms were analyzed by PCR-RFLP or real-time PCR. We found that the frequency of the TaaI/Cdx-2 GG genotype was significantly higher in psoriasis patients and was associated with regulation of IL-17 and IL-23 concentration. Moreover, TaaI/Cdx-2 AA might have a significant effect on the response to phototherapy amongst patients with psoriasis. Our results suggest that VDR is a susceptibility factor for psoriasis development. Moreover, TaaI/Cdx-2 variants have a significant effect on the response to phototherapy amongst patients with psoriasis and regulation of inflammatory response via decrease of IL-17 and IL-23 level after UVB phototherapy in the Polish population. Results of our study provide some evidence in support of the hypothesis that the vitamin D signaling pathway may be of relevance for pathogenesis and treatment of psoriasis.
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20
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Abstract
Psoriasis is a clinically heterogeneous lifelong skin disease that presents in multiple forms such as plaque, flexural, guttate, pustular or erythrodermic. An estimated 60 million people have psoriasis worldwide, with 1.52% of the general population affected in the UK. An immune-mediated inflammatory disease, psoriasis has a major genetic component. Its association with psoriatic arthritis and increased rates of cardiometabolic, hepatic and psychological comorbidity requires a holistic and multidisciplinary care approach. Psoriasis treatments include topical agents (vitamin D analogues and corticosteroids), phototherapy (narrowband ultraviolet B radiation (NB-UVB) and psoralen and ultraviolet A radiation (PUVA)), standard systemic (methotrexate, ciclosporin and acitretin), biologic (tumour necrosis factor (TNF), interleukin (IL)-17 and IL-23 inhibitors) or small molecule inhibitor (dimethyl fumarate and apremilast) therapies. Advances in the understanding of its pathophysiology have led to development of highly effective and targeted treatments.
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21
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Rodrigues JL, Rodrigues LR. Biosynthesis and heterologous production of furanocoumarins: perspectives and current challenges. Nat Prod Rep 2021; 38:869-879. [PMID: 33174568 DOI: 10.1039/d0np00074d] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: up to October 2020 Furanocoumarins are plant secondary metabolites used to treat several skin disorders, such as psoriasis and vitiligo, and also with other potential therapeutic activities. Furanocoumarins are extracted from plants where they accumulate in low amounts over long growth periods. In addition, their extraction and purification are difficult in an environmentally unfriendly and expensive process. Hence, new sustainable and greener production schemes able to overcome such limitations ought to be developed. While the heterologous production of simple coumarins has been demonstrated, the biosynthesis of more complex furanocoumarins remains greatly unexplored. Although several important steps of the pathway have been elucidated in the last decade, the complete pathway has not been completely unravelled. In this paper, we review the natural conversion of amino acids into furanocoumarins, as well as the heterologous expression of each enzyme of the pathway. We also explore the challenges that need to be addressed so that their heterologous production can become a viable alternative.
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Affiliation(s)
- Joana L Rodrigues
- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Lígia R Rodrigues
- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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22
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Bhabha FK, McCormack C, Wells J, Campbell BA, Newland K, Lade S, Buelens O, Joske D, Shortt J, Mapp S, Radeski D, Hertzberg M, Khot A, Van Der Weyden C, Khoo C, Hawkes E, Prince HM. Mycosis fungoides and Sézary syndrome: Australian clinical practice statement. Australas J Dermatol 2020; 62:e8-e18. [PMID: 33368169 DOI: 10.1111/ajd.13467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/16/2020] [Accepted: 08/17/2020] [Indexed: 11/28/2022]
Abstract
Primary cutaneous lymphomas represent a heterogeneous group of T- and B-cell lymphomas with distinct clinical presentations, histopathologic features, treatment approaches and outcomes. The cutaneous T-cell lymphomas, which include mycosis fungoides and Sézary syndrome, account for the majority of the cutaneous lymphomas. This Clinical Practice Statement is reflective of the current clinical practice in Australia. An expanded form of the Clinical Practice Statement (and updates), along with helpful patient resources and access to support groups, can be found at the following (http://www.australasianlymphomaalliance.org.au).
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Affiliation(s)
- Friyana K Bhabha
- Department of Dermatology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Christopher McCormack
- Department of Dermatology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Jillian Wells
- Department of Dermatology, Westmead Hospital and The University of Sydney, Sydney, New South Wales, Australia
| | - Belinda A Campbell
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Clinical Pathology, The University of Melbourne, Parkville, Victoria, Australia
| | - Kate Newland
- Department of Dermatology, Flinders Medical Centre, Bedford Park, South Australia, Australia.,Department of Dermatology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Stephen Lade
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Odette Buelens
- Nurse Practitioner, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - David Joske
- Department of Haematology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Jake Shortt
- School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing & Health Sciences, Monash University, Clayton, Victoria, Australia.,Department of Haematology, Monash Health, Clayton, Victoria, Australia
| | - Sally Mapp
- Haematology Department, Princess Alexandra Hospital, Brisbane, Australia
| | - Dejan Radeski
- Department of Haematology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Mark Hertzberg
- Department of Haematology, Prince of Wales Hospital, Randwick, Australia
| | - Amit Khot
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Carrie Van Der Weyden
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Christine Khoo
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Eliza Hawkes
- Olivia Newton-John Cancer Research Institute at Austin Health, Heidelberg, Victoria, Australia.,Eastern Health, Box Hill, Victoria, Australia.,University of Melbourne, Melbourne, Victoria, Australia
| | - H Miles Prince
- Department of Haematology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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23
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Vieyra-Garcia PA, Wolf P. A deep dive into UV-based phototherapy: Mechanisms of action and emerging molecular targets in inflammation and cancer. Pharmacol Ther 2020; 222:107784. [PMID: 33316286 DOI: 10.1016/j.pharmthera.2020.107784] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023]
Abstract
UV-based phototherapy (including psoralen plus UVA (PUVA), UVB and UVA1) has a long, successful history in the management of numerous cutaneous disorders. Photoresponsive diseases are etiologically diverse, but most involve disturbances in local (and occasionally systemic) inflammatory cells and/or abnormalities in keratinocytes that trigger inflammation. UV-based phototherapy works by regulating the inflammatory component and inducing apoptosis of pathogenic cells. This results in a fascinating and complex network of simultaneous events-immediate transcriptional changes in keratinocytes, immune cells, and pigment cells; the emergence of apoptotic bodies; and the trafficking of antigen-presenting cells in skin-that quickly transform the microenvironment of UV-exposed skin. Molecular elements in this system of UV recognition and response include chromophores, metabolic byproducts, innate immune receptors, neurotransmitters and mediators such as chemokines and cytokines, antimicrobial peptides, and platelet activating factor (PAF) and PAF-like molecules that simultaneously shape the immunomodulatory effects of UV and their interplay with the microbiota of the skin and beyond. Phototherapy's key effects-proapoptotic, immunomodulatory, antipruritic, antifibrotic, propigmentary, and pro-prebiotic-promote clinical improvement in various skin diseases such as psoriasis, atopic dermatitis (AD), graft-versus-host disease (GvHD), vitiligo, scleroderma, and cutaneous T-cell lymphoma (CTCL) as well as prevention of polymorphic light eruption (PLE). As understanding of phototherapy improves, new therapies (UV- and non-UV-based) are being developed that will modify regulatory T-cells (Treg), interact with (resident) memory T-cells and /or utilize agonists and antagonists as well as antibodies targeting soluble molecules such as cytokines and chemokines, transcription factors, and a variety of membrane-associated receptors.
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Affiliation(s)
- Pablo A Vieyra-Garcia
- Department of Dermatology, Medical University of Graz, Auenbruggerplatz 8, Graz A-8036, Austria.
| | - Peter Wolf
- Department of Dermatology, Medical University of Graz, Auenbruggerplatz 8, Graz A-8036, Austria.
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24
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Diekmann J, Theves I, Thom KA, Gilch P. Tracing the Photoaddition of Pharmaceutical Psoralens to DNA. Molecules 2020; 25:E5242. [PMID: 33182821 PMCID: PMC7696755 DOI: 10.3390/molecules25225242] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 01/14/2023] Open
Abstract
The psoralens 8-methoxypsoralen (8-MOP), 4,5',8-trimethylpsoralen (TMP) and 5-methoxypsoralen (5-MOP) find clinical application in PUVA (psoralen + UVA) therapy. PUVA treats skin diseases like psoriasis and atopic eczema. Psoralens target the DNA of cells. Upon photo-excitation psoralens bind to the DNA base thymine. This photo-binding was studied using steady-state UV/Vis and IR spectroscopy as well as nanosecond transient UV/Vis absorption. The experiments show that the photo-addition of 8-MOP and TMP involve the psoralen triplet state and a biradical intermediate. 5-MOP forms a structurally different photo-product. Its formation could not be traced by the present spectroscopic technique.
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Affiliation(s)
| | | | | | - Peter Gilch
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany; (J.D.); (I.T.); (K.A.T.)
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25
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Graier T, Fink-Puches R, Porkert S, Lang R, Pöchlauer S, Ratzinger G, Tanew A, Selhofer S, Sator PG, Hofer A, Gruber-Wackernagel A, Legat FJ, Vieyra-Garcia PA, Quehenberger F, Wolf P. Quality of Life, Anxiety, and Depression in Patients With Early-Stage Mycosis Fungoides and the Effect of Oral Psoralen Plus UV-A (PUVA) Photochemotherapy on it. Front Med (Lausanne) 2020; 7:330. [PMID: 32850876 PMCID: PMC7419471 DOI: 10.3389/fmed.2020.00330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/04/2020] [Indexed: 12/17/2022] Open
Abstract
Background: Little is known about psychological discomfort and quality of life (QoL) in early stage mycosis fungoides (MF) and the effect of psoralen plus UV-A (PUVA) on it. Objective: To evaluate QoL, anxiety, and depression with validated instruments in early stage MF patients and whether PUVA treatment improves it. Methods: Patients with stage IA to IIA MF were treated with PUVA twice weekly for 12–24 weeks, followed by maintenance treatment or not, in a prospective randomized clinical trial. Patients completed a questionnaire on DLQI as well as the Hospital Anxiety and Depression Scale (HADS) prior to therapy, after their last PUVA exposure, and after the PUVA maintenance or observance phase. Results: For 24 patients with early stage MF, completed questionnaires were available and analyzed. Prior to treatment, 17% reported strong (DLQI > 10) and 29% moderate impairment (DLQI 6–10) in QoL; 33% of patients reported HADS scores indicating anxiety, and 21% reported scores indicating depression. PUVA significantly improved overall QoL by reducing mean DLQI scores by 58.6% (p = 0.003), HADS-A by 30% (p = 0.045), and HADS-D by 44% (p = 0.002). Improvements in QoL and psychological well-being seemed to be sustained, irrespective of maintenance treatment or not. Limitations: Small sample size. Conclusions: PUVA sustainably improves QoL and psychological well-being in patients with early stage MF. Clinical trial registration:ClinicalTrials.gov identifier: NCT01686594.
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Affiliation(s)
- Thomas Graier
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Regina Fink-Puches
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Stephanie Porkert
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Roland Lang
- Department of Dermatology and Allergology, Paracelsus Medical University, Salzburg, Austria
| | | | - Gudrun Ratzinger
- Department of Dermatology Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Adrian Tanew
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sylvia Selhofer
- Department of Dermatology and Allergology, Paracelsus Medical University, Salzburg, Austria
| | | | - Angelika Hofer
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Alexandra Gruber-Wackernagel
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Franz J Legat
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Pablo Augusto Vieyra-Garcia
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Franz Quehenberger
- Institute for Medical Informatics, Statistics, and Documentation, Medical University of Graz, Graz, Austria
| | - Peter Wolf
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
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26
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Campbell J. Safe and effective use of phototherapy and photochemotherapy in the treatment of psoriasis. BRITISH JOURNAL OF NURSING (MARK ALLEN PUBLISHING) 2020; 29:547-552. [PMID: 32463760 DOI: 10.12968/bjon.2020.29.10.547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Psoriasis is a chronic, multisystem inflammatory disease, predominantly affecting the skin and joints, which is present in 2-3% of the world's population. Narrow band ultraviolet B (NB-UVB) and Psoralen + ultraviolet A (PUVA) are recognised, effective and, in the case of UVB, economical second-line treatments for psoriasis where topical therapies fail to control the disease or are an impracticable option due to the extent of skin involvement. This article examines the history of phototherapy and photochemotherapy and looks at current phototherapy treatments used for psoriasis. It discusses side effects of treatment and regimens that can be followed to increase effectiveness of treatment and minimise risks. The role of the nurse phototherapist is also discussed.
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Affiliation(s)
- Joanna Campbell
- Phototherapy Specialist Nurse, Photobiology Unit, Department of Dermatology, Ninewells Hospital, Dundee
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27
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Vermeulen FM, Gerbens LAA, Schmitt J, Deleuran M, Irvine AD, Logan K, Ouwerkerk W, Vestergaard C, Flohr C, Spuls PI. The European TREatment of ATopic eczema (TREAT) Registry Taskforce survey: prescribing practices in Europe for phototherapy and systemic therapy in adult patients with moderate-to-severe atopic eczema. Br J Dermatol 2020; 183:1073-1082. [PMID: 32068893 PMCID: PMC7754420 DOI: 10.1111/bjd.18959] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2020] [Indexed: 01/01/2023]
Abstract
Background For many years dermatologists have had access to few therapies for patients with moderate‐to‐severe atopic eczema (AE). New promising therapies are entering the market but conventional phototherapies and systemic therapies have more well‐known safety profiles, lower costs and wider availability. Objectives To provide insight into current prescribing practices of conventional phototherapy and systemic immunomodulatory therapies for adults with chronic AE, and the factors influencing these prescribing practices, before biologics and other novel therapeutics become routine clinical practice. Methods In this exploratory study dermatologists were invited to participate in an online survey via a mailing list of the European Academy of Dermatology and Venereology and national societies. Data were collected on participant characteristics (including clinical practice data), the use of phototherapies and systemic therapies, and factors influencing their use. Results From 30 European countries, 238 out of 361 dermatologists willing to participate (65·9%) completed the survey, with 229 meeting the inclusion criteria. For phototherapy (prescribed by 84·7%), most preferred narrowband ultraviolet B as first line (80·9%) and psoralen plus ultraviolet A as second (21·6%). For systemic therapy (prescribed by 95·2%) ciclosporin (54·1%), oral corticosteroids (32·6%) and methotrexate (30·7%) were used first line. Dermatologists relied mostly on personal experience for prescribing phototherapy and systemic therapy. Azathioprine and mycophenolic acid were prescribed by only 135 (59·0%) and 85 (37·1%) participants in total, mostly due to a lack of personal experience. Conclusions This study provides insight into prescribing practices for conventional phototherapy and systemic therapy in Europe and shows that off‐label therapies are also preferred as first‐line choice of systemic therapy. What is already known about this topic? Varying prescribing practices were found for adult (in the UK) and paediatric (in Northern America and Europe) patients with moderate‐to-severe atopic eczema (AE). Not much is known about the prescription of phototherapy and (off‐label) systemic therapy for adult patients in Europe. Although therapies like dupilumab are promising new treatment modalities, better‐known safety profiles, lower costs and better availability are reasons to improve the evidence profile of conventional systemic therapies like ciclosporin.
What does this study add? Prescribing practices of European dermatologists treating adult patients with moderate‐to-severe AE show diversity. Most dermatologists prefer narrowband ultraviolet B as first‐line phototherapy, followed by psoralen plus ultraviolet A as second line. Next to ciclosporin, which is most commonly prescribed, (off‐label) methotrexate and oral corticosteroids are also frequently used as first‐line systemic agents in chronic AE. Lack of personal experience with azathioprine and mycophenolic acid was the most important reason against their prescription.
What are the clinical implications of the work? The results from this study might help to improve the experience with, and prescribing of, all available conventional phototherapies and (off‐label) systemic therapies. Guidelines developers might use these results to develop and implement treatment algorithms.
Linked Comment:Bruin‐Weller. Br J Dermatol 2020; 183:987–988. Plain language summary available online
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Affiliation(s)
- F M Vermeulen
- Department of Dermatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Meibergdreef 9, Amsterdam, the Netherlands
| | - L A A Gerbens
- Department of Dermatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Meibergdreef 9, Amsterdam, the Netherlands
| | - J Schmitt
- Centre for Evidence-Based Healthcare, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Dresden, Germany.,University Allergy Centre, University Hospital Carl Gustav Carus, Dresden, Germany
| | - M Deleuran
- Department of Dermatology and Venereology, Aarhus University Hospital, Aarhus, Denmark
| | - A D Irvine
- Department of Paediatric Dermatology, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland.,Department of Clinical Medicine, Trinity College Dublin, Dublin, Ireland.,National Children's Research Centre, Dublin, Ireland
| | - K Logan
- The Paediatric Allergy Research Group, the Department of Women and Children's Health, King's College London, London, UK
| | - W Ouwerkerk
- Department of Dermatology and Netherlands Institute for Pigment Disorders, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Infection & Immunity Institute, Cancer Center Amsterdam, Amsterdam, the Netherlands.,National Heart Centre Singapore, Singapore
| | - C Vestergaard
- Department of Dermatology and Venereology, Aarhus University Hospital, Aarhus, Denmark
| | - C Flohr
- National Heart Centre Singapore, Singapore
| | - P I Spuls
- Department of Dermatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Public Health, Infection and Immunity, Meibergdreef 9, Amsterdam, the Netherlands
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28
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Phan K, Ramachandran V, Fassihi H, Sebaratnam DF. Comparison of Narrowband UV-B With Psoralen-UV-A Phototherapy for Patients With Early-Stage Mycosis Fungoides: A Systematic Review and Meta-analysis. JAMA Dermatol 2020; 155:335-341. [PMID: 30698622 DOI: 10.1001/jamadermatol.2018.5204] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Importance Phototherapy is one of the mainstays of treatment for early mycosis fungoides (MF). The most common modalities are psoralen-UV-A (PUVA) and narrowband UV-B (NBUVB). Objective To compare the efficacy and adverse effects of PUVA vs NBUVB in early-stage MF. Data Sources A systematic review was performed by searching Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Ovid Medline, PubMed, Cochrane Library, American College of Physicians ACP Journal Club, and Database of Abstracts of Review of Effectiveness from inception to March 30, 2018. UV A, PUVA, mycosis fungoides, Sézary syndrome, cutaneous T-cell lymphoma, UV B, and UVB were used as either key words or MeSH terms. Study Selection Studies of cohorts with histologically confirmed early-stage MF, defined as stages IA, IB, and IIA, that compared PUVA vs NBUVB, had at least 10 patients in each comparator group, and reported outcomes of response to therapy. Exclusion criteria were studies with patients with stage IIB or higher MF, pediatric patients, fewer than 10 in each comparator group, noncomparative studies, case reports, and abstract studies. Data Extraction and Synthesis The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guideline was followed. Data were pooled using a random-effects model with odds ratio (OR) as effect size. Main Outcomes and Measures Main outcomes were complete response rate, partial response rate, disease recurrence, and adverse effects, including erythema, nausea, pruritus, phototoxic effects, dyspepsia, and pain. Results Seven studies were included with a total of 778 patients (405 of 724 [55.9%] men; mean age, 52 years); 527 were treated with PUVA and 251 with NBUVB. Most of the included studies were of poor to moderate quality. Any response was found in 479 of the 527 (90.9%) patients treated with PUVA vs 220 of 251 (87.6%) treated with NBUVB (OR, 1.40; 95% CI, 0.84-2.34; P = .20). Complete response was found in 389 of 527 (73.8%) patients who received PUVA vs 156 of 251 (62.2%) who received NBUVB, which was statistically significant (OR, 1.68; 95% CI, 1.02-2.76; P = .04). Partial response was similar (90 of 501 [18.0%] vs 64 of 233 [27.5%]; OR, 0.58; 95% CI, 0.33-1.04; P = .07). No significant difference was found between PUVA and NBUVB in terms of adverse effects of erythema (38 of 527 [7.2%] vs 17 of 251 [6.7%]; P = .54), nausea (10 of 527 [1.9%] vs 3 of 251 [1.2%]; P = .72), pruritus (2 of 527 [0.4%] vs 4 of 251 [1.7%]; P = .26), phototoxic effects (7 of 527 [1.4%] vs 2 of 251 [0.9%]; P = .72), dyspepsia (6 of 527 [1.2%] vs 0 of 251 [0%]; P = .59), or pain (0 of 527 [0%] vs 2 of 251 [0.9%]; P = .50). Conclusions and Relevance The findings suggest that PUVA is a potential alternative to NBUVB in the management of early-stage MF. These findings have implications for clinicians involved in the management of early-stage MF.
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Affiliation(s)
- Kevin Phan
- Department of Dermatology, Liverpool Hospital, Liverpool, Sydney, Australia.,South Western Sydney Clinical School, University of New South Wales, Kensington, Sydney, Australia
| | | | - Hiva Fassihi
- St John's Institute for Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Deshan F Sebaratnam
- Department of Dermatology, Liverpool Hospital, Liverpool, Sydney, Australia.,South Western Sydney Clinical School, University of New South Wales, Kensington, Sydney, Australia
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Vieyra-Garcia P, Fink-Puches R, Porkert S, Lang R, Pöchlauer S, Ratzinger G, Tanew A, Selhofer S, Paul-Gunther S, Hofer A, Gruber-Wackernagel A, Legat F, Patra V, Quehenberger F, Cerroni L, Clark R, Wolf P. Evaluation of Low-Dose, Low-Frequency Oral Psoralen-UV-A Treatment With or Without Maintenance on Early-Stage Mycosis Fungoides: A Randomized Clinical Trial. JAMA Dermatol 2020; 155:538-547. [PMID: 30892603 DOI: 10.1001/jamadermatol.2018.5905] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Importance Psoralen-UV-A (PUVA) photochemotherapy is standard first-line treatment for skin-limited, early-stage mycosis fungoides capable of producing high initial complete response (CR) rates. However, much remains unknown about PUVA's therapeutic mechanisms, optimal duration and frequency of treatment, dose escalation, or use as maintenance therapy. Objectives To evaluate low-dose, low-frequency PUVA, and whether maintenance treatment extends disease-free remission in patients with mycosis fungoides. Design, Setting, and Participants This prospective randomized clinical trial with defined PUVA dosing regimen was carried out in 5 centers (Graz, Vienna, Hietzing, Innsbruck, and Salzburg) across Austria. Patients with stage IA to IIA mycosis fungoides (n = 27) were enrolled in the study beginning March 13, 2013, with the last patient enrolled March 21, 2016. These patients were treated with oral 8-methoxypsoralen followed by UV-A exposure 2 times per week for 12 to 24 weeks until CR. Patients with CR were randomized to PUVA maintenance for 9 months (14 total exposures) or no maintenance. The study was conducted from April 27, 2012, to July 27, 2018. Data analysis of the primary end point was of the intention-to-treat population, and the secondary end point analysis was of the evaluable population. Main Outcomes and Measures Efficacy of the PUVA regimen was determined by the rate of CR as defined by a modified severity-weighted assessment tool (mSWAT) score reduction to 0. Levels of proinflammatory molecules in serum and histologic features and percentage of clonal T cells in skin were assessed to search for biomarkers of clinical response. Results In 27 patients with mycosis fungoides, 19 (70%) were male with mean (range) age 61 (30-80) years. At baseline, patients with CR had a mean (range) mSWAT score of 18.6 (1-66) compared with 16.8 (3-46) in patients with partial response. The 12- to 24-week PUVA induction regimen reduced the mSWAT score in all patients and led to CR in 19 (70%) of 27 patients and a low mean cumulative UV-A dose of 78.5 J/cm2. The subsequent standardized 9-month PUVA maintenance phase prolonged median (range) disease-free remission from 4 (1-20) months to 15 (1-54) months (P = .02). High density of histologic infiltrate and high percentage of clonal TCR sequences in skin biopsy specimens at baseline were inversely associated with therapeutic response. No severe adverse effects were seen during the PUVA induction or maintenance phase. Conclusions and Relevance This proof-of-concept study identifies potential biomarkers for therapeutic response to PUVA in mycosis fungoides; it also demonstrates that low-dose, low-frequency PUVA appears to be highly effective, and maintenance treatment may extend disease-free remission. Trial Registration ClinicalTrials.gov identifier: NCT01686594.
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Affiliation(s)
- Pablo Vieyra-Garcia
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Regina Fink-Puches
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Stefanie Porkert
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Roland Lang
- Department of Dermatology, Paracelsus Medical University, Salzburg, Austria
| | | | - Gudrun Ratzinger
- Department of Dermatology and Venerology, Medical University of Innsbruck, Innsbruck, Austria
| | - Adrian Tanew
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Sylvia Selhofer
- Department of Dermatology, Paracelsus Medical University, Salzburg, Austria
| | | | - Angelika Hofer
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Alexandra Gruber-Wackernagel
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Franz Legat
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Vijaykumar Patra
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Franz Quehenberger
- Institute of Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Lorenzo Cerroni
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Rachael Clark
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Peter Wolf
- Research Unit for Photodermatology, Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
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30
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Kuzmin VA, Volnukhin VA, Egorov AE, Klimovich ON, Kostyukov AA, Nekipelova TD, Khodot EN, Shakhmatov VV, Shevelev AV, Shibaeva AB, Shtil AA. Furodihydroquinolines as Novel Photosensitizers for Photochemotherapy. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s199079311906023x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Yang TT, Chiu SH, Lan CCE. The effects of UVB irradiance on vitiligo phototherapy and UVB-induced photocarcinogenesis. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2020; 36:257-262. [PMID: 32022939 DOI: 10.1111/phpp.12536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/13/2020] [Accepted: 02/03/2020] [Indexed: 01/10/2023]
Abstract
Phototherapy is the most commonly used modality for repigmenting vitiligo. Currently, UVB emitting devices, including narrow-band UVB (NBUVB) and excimer laser/light, are considered as the treatment of choice. While emitting wavelengths at close proximity, excimer lights emit higher irradiance (HI; W/m2 ) compared to NBUVB. Clinical reports have shown that excimer light is more efficacious in treating vitiligo compared to NBUVB, and we demonstrated that irradiance plays a critical role in promoting melanoblasts differentiation. UVB radiation from the sun is closely associated with photocarcinogenesis of the skin. Sunscreens were used to protect the skin by reducing UVB irradiance (low irradiance (LI) UVB). Sunscreen use was associated with skin cancer reduction in clinical trials. Paradoxically, sunscreen use was associated with increased sunburn episodes in the real-world settings. It was shown that UVB-induced sunburn depends on fluence (J/m2 ) but not irradiance of UVB radiation. We investigated the significance of irradiance in the context of UVB-induced carcinogenesis of the skin. For mice receiving equivalent fluence of UVB exposure, the LIUVB-treated mice showed earlier tumor development, larger tumor burden, and more epidermal keratinocytes harboring mutant p53 as compared to their HIUVB-treated counterparts. These results suggested that at equivalent fluence, LIUVB radiation has more photocarcinogenic potential on the skin compared to its HI counterpart. Since development of sunburn with or without sunscreen use indicates that certain threshold of UVB fluence has been received by the skin at LI and HI, respectively, sunburn episodes with sunscreen use (LIUVB) are more damaging to the skin compared to that without sunscreen (HIUVB) application. In summary, since irradiance plays an important role determining the biological effects of UVB radiation on the skin, future related studies should take this critical parameter into consideration.
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Affiliation(s)
- Ting-Ting Yang
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Szu-Hao Chiu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Che E Lan
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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32
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Wu JH, Cohen BA, Sweren RJ. Mycosis fungoides in pediatric patients: Clinical features, diagnostic challenges, and advances in therapeutic management. Pediatr Dermatol 2020; 37:18-28. [PMID: 31630432 DOI: 10.1111/pde.14026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mycosis fungoides (MF) is the most common primary cutaneous lymphoma in pediatric patients. Given the indolent nature of MF, symptoms often present in childhood but may not be diagnosed as MF until adulthood. Delayed diagnosis is associated with poor long-term prognosis. Thus, increased clinician recognition and accurate diagnosis of early-stage MF in pediatric patients is critically important. In this review, we summarize the clinical features of the most common pediatric MF subtypes and highlight important differences between pediatric and adult MF. Moreover, we reviewed all pediatric MF case series published between 2008 and 2018 to analyze treatment modalities and identify emerging therapies. As treatment of pediatric MF is complex, selection of therapy varies significantly depending upon the specific clinical characteristics, disease severity, and patients' preferences.
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Affiliation(s)
- Julie H Wu
- Memorial Sloan Kettering Cancer Center, New York, New York
| | - Bernard A Cohen
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland.,Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ronald J Sweren
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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33
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34
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Pita da Veiga G, Pérez‐Feal P, Moreiras‐Arias N, Peteiro‐García C, Suárez‐Peñaranda JM, Vázquez‐Veiga H, Rodríguez‐Granados MT. Treatment of nail lichen planus with localized bath‐PUVA. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2019; 36:241-243. [DOI: 10.1111/phpp.12528] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/20/2019] [Accepted: 11/22/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Gabriela Pita da Veiga
- Department of Dermatology University Hospital Complex of Santiago de Compostela Santiago de Compostela Spain
| | - Patricia Pérez‐Feal
- Department of Dermatology University Hospital Complex of Santiago de Compostela Santiago de Compostela Spain
| | - Noelia Moreiras‐Arias
- Department of Dermatology University Hospital Complex of Santiago de Compostela Santiago de Compostela Spain
| | - Carmen Peteiro‐García
- Department of Dermatology University Hospital Complex of Santiago de Compostela Santiago de Compostela Spain
| | | | - Hugo Vázquez‐Veiga
- Department of Dermatology University Hospital Complex of Santiago de Compostela Santiago de Compostela Spain
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35
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[Low-frequency, low-dose oral psoralen-UV-A therapy for mycosis fungoides]. Hautarzt 2019; 71:81-82. [PMID: 31768559 DOI: 10.1007/s00105-019-04512-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Barnard I, Eadie E, McMillan L, Moseley H, Brown T, Wood K, Dawe R. Could psoralen plus ultraviolet A1 (‘
PUVA
1’) work? Depth penetration achieved by phototherapy lamps. Br J Dermatol 2019; 182:813-814. [DOI: 10.1111/bjd.18561] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- I.R.M. Barnard
- Scottish Universities Physics Alliance School of Physics and Astronomy University of St Andrews St Andrews U.K
| | - E. Eadie
- Photobiology Unit NHS Tayside Ninewells Hospital Dundee U.K
| | - L. McMillan
- Scottish Universities Physics Alliance School of Physics and Astronomy University of St Andrews St Andrews U.K
| | - H. Moseley
- Photobiology Unit NHS Tayside Ninewells Hospital Dundee U.K
| | - T. Brown
- Scottish Universities Physics Alliance School of Physics and Astronomy University of St Andrews St Andrews U.K
| | - K. Wood
- Scottish Universities Physics Alliance School of Physics and Astronomy University of St Andrews St Andrews U.K
| | - R. Dawe
- Photobiology Unit NHS Tayside Ninewells Hospital Dundee U.K
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37
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Legat FJ. Is there still a role for UV therapy in itch treatment? Exp Dermatol 2019; 28:1432-1438. [PMID: 31343082 DOI: 10.1111/exd.14011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 07/13/2019] [Accepted: 07/17/2019] [Indexed: 12/22/2022]
Abstract
Itching is a frequent and greatly distressing symptom related to many skin and systemic diseases. New insights into the pathophysiology of itchy skin and potentially involved mediators have increased the interest in and development of new treatments that specifically act on targets involved in the transmission and perception of itching. Phototherapy has long been known and used as an effective treatment for various kinds of chronic itching. However, despite its well-known beneficial effects, the mechanisms behind the antipruritic effect of phototherapy are less well-known. In addition, phototherapy requires the use of expensive equipment in dermatology offices, patients must undergo repeated treatments and no large, randomized, controlled trials have yet supported the antipruritic effect of UV. Therefore, phototherapy is rarely recommended as a treatment method for chronic pruritic diseases or only used as a last recourse. However, the wide range of pruritic conditions that can be successfully treated with phototherapy, together with its low acute side effects, extremely low frequency of interactions with other medications, possibilities to combine phototherapy with other treatment modalities and the fact that patients of almost all ages-from childhood to old age, including women during pregnancy or lactation-can be treated make UV therapy advantageous over other treatments of chronic pruritus. Thus, despite the development of new targeted therapies against pruritus, UV therapy is neither outdated nor the 'last recourse', but should be considered early on in the treatment of chronic pruritus.
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Affiliation(s)
- Franz J Legat
- Department of Dermatology, Medical University of Graz, Graz, Austria
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38
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Diekmann J, Gontcharov J, Fröbel S, Torres Ziegenbein C, Zinth W, Gilch P. The Photoaddition of a Psoralen to DNA Proceeds via the Triplet State. J Am Chem Soc 2019; 141:13643-13653. [DOI: 10.1021/jacs.9b06521] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janina Diekmann
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Julia Gontcharov
- Lehrstuhl für BioMolekulare Optik, Fakultät für Physik and Center for Integrated Protein Science Munich CIPSM, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
| | - Sascha Fröbel
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Christian Torres Ziegenbein
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Wolfgang Zinth
- Lehrstuhl für BioMolekulare Optik, Fakultät für Physik and Center for Integrated Protein Science Munich CIPSM, Ludwig-Maximilians-Universität München, Oettingenstrasse 67, 80538 München, Germany
| | - Peter Gilch
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
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Affiliation(s)
- A Tanew
- Phototherapy Unit, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - H W Lim
- Department of Dermatology, Henry Ford Hospital, Detroit, MI, U.S.A
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40
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Richer V, AlObaida S, Kharazmi P, Lee TK, Kalia S, Lui H. Old is gold? Retrospective evaluation of efficacy and safety of topical psoralen–ultraviolet A phototherapy for palmoplantar psoriasis and dermatitis. Br J Dermatol 2019; 181:417-418. [DOI: 10.1111/bjd.18012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- V. Richer
- Photomedicine Institute, Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
- Vancouver Coastal Health Research Institute Vancouver BC Canada
| | - S. AlObaida
- Photomedicine Institute, Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
- Vancouver Coastal Health Research Institute Vancouver BC Canada
| | - P. Kharazmi
- Photomedicine Institute, Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
- Vancouver Coastal Health Research Institute Vancouver BC Canada
- Department of Cancer Control Research – Imaging Unit BC Cancer Vancouver BC Canada
- Biomedical Engineering Program University of British Columbia Vancouver BC Canada
| | - T. K. Lee
- Department of Cancer Control Research – Imaging Unit BC Cancer Vancouver BC Canada
| | - S. Kalia
- Photomedicine Institute, Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
- Vancouver Coastal Health Research Institute Vancouver BC Canada
| | - H. Lui
- Photomedicine Institute, Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
- Vancouver Coastal Health Research Institute Vancouver BC Canada
- Department of Cancer Control Research – Imaging Unit BC Cancer Vancouver BC Canada
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41
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Britton J, Eadie E, Turner D. An investigation of different types of eyewear and face shields in protecting patients and operators from the harmful effects of ultraviolet radiation. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2019; 35:246-254. [PMID: 30932222 DOI: 10.1111/phpp.12459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/25/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Phototherapy and photochemotherapy are commonly used treatment modalities for a range of chronic skin conditions. Whilst undergoing ultraviolet radiation exposure, patients can wear personal protective equipment. Face shields in combination with other forms of skin cover may be worn to provide both skin and eye protection. There are a number of different types of eyewear and face shields available for purchase. Some of these have clear identifications that show the levels of protection provided whilst others may not have any. METHODS A series of similar experiments has been undertaken independently at two phototherapy treatment centres-Chapel Allerton Hospital, Leeds and Ninewells Hospital, Dundee-to investigate the effectiveness of different face shields and eye protection that are available for purchase in the United Kingdom (UK). Two similar examples of one face shield were tested at both centres, and another was transferred between the units. RESULTS Not all examples of the face shields and protective eyewear provided the wearer full protection between 300 nanometres and 400 nanometres (nm). Cost and conformance to different standards was not always a good indicator. Some inexpensive examples tested also met British Association of Dermatology protective sunglasses guidelines. CONCLUSIONS It is incumbent on all centres to check the properties of protective face shields and eyewear provided to patients and operators to guard against the effects from ultraviolet radiation. There is no correlation between price of the protective equipment and level of protection offered, and there may be opportunity for cost savings.
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Affiliation(s)
- Jason Britton
- Medical Physics Department, Leeds General Infirmary, Leeds, UK
| | - Ewan Eadie
- Photobiology unit, Ninewells Hospital, Dundee, UK
| | - David Turner
- Dermatology Department, Chapel Allerton Hospital, Leeds, UK
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42
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Naasan H, Dawe RS, Ibbotson SH. Efficacy of localized hand and foot phototherapy: a review of patients treated in a teaching hospital setting. Clin Exp Dermatol 2019; 44:356-358. [DOI: 10.1111/ced.13776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2018] [Indexed: 12/01/2022]
Affiliation(s)
- H. Naasan
- Photobiology Unit; Department of Dermatology; University of Dundee; Ninewells Hospital and Medical School; Dundee UK
| | - R. S. Dawe
- Photobiology Unit; Department of Dermatology; University of Dundee; Ninewells Hospital and Medical School; Dundee UK
| | - S. H. Ibbotson
- Photobiology Unit; Department of Dermatology; University of Dundee; Ninewells Hospital and Medical School; Dundee UK
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43
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Garcia-Sampedro A, Tabero A, Mahamed I, Acedo P. Multimodal use of the porphyrin TMPyP: From cancer therapy to antimicrobial applications. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500111] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The cationic porphyrin meso-tetra(4-[Formula: see text]-methylpyridyl)porphine (TMPyP) has a high yield of singlet oxygen generation upon light activation and a strong affinity for DNA. These advantageous properties have turned it into a promising photosensitizer for use in photodynamic therapy (PDT). In this review, we have summarized the current state-of-the-art applications of TMPyP for the treatment of cancer as well as its implementation in antimicrobial PDT. The most relevant studies reporting its pharmacokinetics, subcellular localization, mechanism of action, tissue biodistribution and dosimetry are discussed. Combination strategies using TMPyP-PDT together with other photosensitizers and chemotherapeutic agents to achieve synergistic anti-tumor effects and reduce resistance to therapy are also explored. Finally, we have addressed emerging applications of this porphyrin, including nanoparticle-mediated delivery, controlled drug release, biosensing and G-quadruplex stabilization for tumor growth inhibition. Altogether, this work highlights the great potential and versatility that TMPyP can offer in different fields of biomedicine such us cancer treatment or antimicrobial therapy.
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Affiliation(s)
- Andres Garcia-Sampedro
- Institute for Liver and Digestive Health, University College London, Pond Street, NW3 2PG, London, UK
| | - Andrea Tabero
- Departament of Biology, Universidad Autónoma de Madrid, Darwin 2, 28049, Madrid, Spain
| | - Ismahan Mahamed
- Institute for Liver and Digestive Health, University College London, Pond Street, NW3 2PG, London, UK
| | - Pilar Acedo
- Institute for Liver and Digestive Health, University College London, Pond Street, NW3 2PG, London, UK
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44
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Ibbotson S. Drug and chemical induced photosensitivity from a clinical perspective. Photochem Photobiol Sci 2018; 17:1885-1903. [PMID: 30283959 DOI: 10.1039/c8pp00011e] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Drug photosensitivity is a relatively common occurrence and a range of mechanisms may be involved. Some of these mechanisms will be discussed, including the most common, that of drug phototoxicity. Different types of photosensitivity are addressed with respect to clinical presentation, mechanisms and additionally the contribution to our understanding through clinically directed investigations and regulatory requirements. Repeated controlled therapeutic use of drug phototoxicity, with psoralen-UVA (PUVA) photochemotherapy and photodynamic therapy (PDT) will also be discussed. Finally, the potential for drug-induced photocarcinogenesis will also be covered.
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Affiliation(s)
- Sally Ibbotson
- Photobiology Unit, Dermatology Department, University of Dundee, Ninewells Hospital and Medical School, Dundee, DD1 9SY, UK.
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45
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Gilson D, Whittaker S, Child F, Scarisbrick J, Illidge T, Parry E, Mohd Mustapa M, Exton L, Kanfer E, Rezvani K, Dearden C, Morris S, McHenry P, Leslie T, Wakelin S, Hunasehally R, Cork M, Johnston G, Chiang N, Worsnop F, Salim A, Buckley D, Petrof G, Callachand N, Flavell T, Salad A. British Association of Dermatologists and U.K. Cutaneous Lymphoma Group guidelines for the management of primary cutaneous lymphomas 2018. Br J Dermatol 2018; 180:496-526. [DOI: 10.1111/bjd.17240] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2018] [Indexed: 02/07/2023]
Affiliation(s)
- D. Gilson
- Leeds Cancer Centre St James's University Hospital Leeds LS9 7TF U.K
| | - S.J. Whittaker
- St John's Institute of Dermatology Guy's and St Thomas NHS Foundation Trust St Thomas’ Hospital London SE1 7EH U.K
| | - F.J. Child
- St John's Institute of Dermatology Guy's and St Thomas NHS Foundation Trust St Thomas’ Hospital London SE1 7EH U.K
| | - J.J. Scarisbrick
- Queen Elizabeth Hospital University Hospital Birmingham Birmingham B15 2TH U.K
| | - T.M. Illidge
- Institute of Cancer Sciences University of Manchester The Christie NHS Foundation Trust Manchester M20 4BX U.K
| | - E.J. Parry
- Tameside Hospital Integrated Care NHS Foundation Trust Ashton‐under‐Lyne OL6 9RW U.K
| | - M.F. Mohd Mustapa
- British Association of Dermatologists Willan House, 4 Fitzroy Square London W1T 5HQ U.K
| | - L.S. Exton
- British Association of Dermatologists Willan House, 4 Fitzroy Square London W1T 5HQ U.K
| | - E. Kanfer
- Haematology Department Hammersmith Hospital Du Cane Road London W12 0HS U.K
| | - K. Rezvani
- The University of Texas MD Anderson Cancer Centre Houston TX U.S.A
| | - C.E. Dearden
- Chronic Lymphocytic Leukaemia (CLL) Unit The Royal Marsden NHS Foundation Trust Sutton SW3 6JJ U.K
| | - S.L. Morris
- Guy's and St Thomas’ NHS Foundation Trust Guy's Hospital London SE1 9RT U.K
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Abstract
Phototherapy is widely used to treat inflammatory skin diseases such as psoriasis and atopic dermatitis. Repeated suberythemogenic doses of UV-light reduce inflammation in these diseases and ultimately may lead to a complete disappearance of cutaneous symptoms for weeks or months. Chronic pruritus is an important and highly distressing symptom of many of these inflammatory skin diseases. Interestingly, pruritus is also reduced or completely abolished by UV-treatment of psoriasis and atopic dermatitis, and sometimes reduction of pruritus is the first indication for skin improvement by phototherapy. The cutaneous nervous system is an integral part of skin anatomy, and free nerve endings of sensory cutaneous nerve fibers reach up into the epidermis getting in close contact with epidermal cells and mediators from epidermal cells released into the intercellular space. Stimulation of “pruriceptors” within this group of sensory nerve fibers generates a neuronal signal eventually transmitted via the dorsal root and the spinal cord to the brain, where it is recognized as “itch”. UV-light may directly affect cutaneous sensory nerve fibers or, via the release of mediators from cells within the skin, indirectly modulate their function as well as the transmission of itch to the central nervous system inducing the clinically recognized antipruritic effect of phototherapy.
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Affiliation(s)
- Franz J Legat
- Department of Dermatology and Venerology, Medical University of Graz, Graz, Austria
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47
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Vieyra-Garcia PA, Wolf P. From Early Immunomodulatory Triggers to Immunosuppressive Outcome: Therapeutic Implications of the Complex Interplay Between the Wavebands of Sunlight and the Skin. Front Med (Lausanne) 2018; 5:232. [PMID: 30250844 PMCID: PMC6139367 DOI: 10.3389/fmed.2018.00232] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/30/2018] [Indexed: 12/20/2022] Open
Abstract
Phototherapy is an efficient treatment for many cutaneous diseases that involve the activation of inflammatory pathways or the overgrowth of cells with aberrant phenotype. In this review, we discuss recent advances in photoimmunology, focusing on the effects of UV-based therapies currently used in dermatology. We describe the molecular responses to the main forms of photo(chemo)therapy such as UVB, UVA-1, and PUVA that include the triggering of apoptotic or immunosuppressive pathways and help to clear diseased skin. The early molecular response to UV involves DNA photoproducts, the isomerization of urocanic acid, the secretion of biophospholipids such as platelet activating factor (PAF), the activation of aryl hydrocarbon receptor and inflammasome, and vitamin D synthesis. The simultaneous and complex interaction of these events regulates the activity of the immune system both locally and systemically, resulting in apoptosis of neoplastic and/or benign cells, reduction of cellular infiltrate, and regulation of cytokines and chemokines. Regulatory T-cells and Langerhans cells, among other skin-resident cellular populations, are deeply affected by UV exposure and are therefore important players in the mechanisms of immunomodulation and the therapeutic value of UV in all its forms. We weigh the contribution of these cells to the therapeutic application of UV and how they may participate in transferring the direct impact of UV on the skin into local and systemic immunomodulation. Moreover, we review the therapeutic mechanisms revealed by clinical and laboratory animal investigations in the most common cutaneous diseases treated with phototherapy such as psoriasis, atopic dermatitis, vitiligo, and cutaneous T-cell lymphoma. Better understanding of phototherapeutic mechanisms in these diseases will help advance treatment in general and make future therapeutic strategies more precise, targeted, personalized, safe, and efficient.
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Affiliation(s)
| | - Peter Wolf
- Department of Dermatology, Medical University of Graz, Graz, Austria
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48
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Lembo S, Raimondo A. Polymorphic Light Eruption: What's New in Pathogenesis and Management. Front Med (Lausanne) 2018; 5:252. [PMID: 30250845 PMCID: PMC6139322 DOI: 10.3389/fmed.2018.00252] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/22/2018] [Indexed: 01/25/2023] Open
Abstract
Polymorphic light eruption is the commonest photosensitive disorder, characterized by an intermittent eruption of non-scarring erythematous papules, vesicles or plaques that develop within hours of ultraviolet radiation exposure of patient skin. Together with the lesions, a terrible itch starts and increases with the spreading of the disease, sometimes aggravated by a sort of burning sensation. Clinical picture and symptoms can improve during the rest of the summer with further solar exposures. In the last years many advances have been performed in the knowledge of its pathogenesis and some news have been proposed as preventive, as well as therapeutic options. All this has been discussed in the current mini review.
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Affiliation(s)
- Serena Lembo
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Salerno, Italy
| | - Annunziata Raimondo
- Department of Clinical Medicine and Surgery, University of Naples, Federico II, Naples, Italy
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49
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Ibbotson SH. A Perspective on the Use of NB-UVB Phototherapy vs. PUVA Photochemotherapy. Front Med (Lausanne) 2018; 5:184. [PMID: 30013973 PMCID: PMC6036147 DOI: 10.3389/fmed.2018.00184] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 06/01/2018] [Indexed: 12/22/2022] Open
Abstract
Narrowband UVB (NB-UVB) phototherapy and psoralen-UVA (PUVA) photochemotherapy are widely used phototherapeutic modalities for a range of skin diseases. The main indication for NB-UVB and PUVA therapies is psoriasis, and other key diagnoses include atopic eczema, vitiligo, cutaneous T-cell lymphoma (CTCL), and the photodermatoses. The decision on choice of phototherapy is important and NB-UVB is usually the primary choice. NB-UVB phototherapy is a safe and effective therapy which is usually considered when topical agents have failed. PUVA requires prior psoralen sensitization but remains a highly effective mainstay therapy, often used when NB-UVB fails, there is rapid relapse following NB-UVB or in specific indications, such as pustular or erythrodermic psoriasis. This review will provide a perspective on the main indications for use of NB-UVB and PUVA therapies and provide comparative information on these important dermatological treatments.
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Affiliation(s)
- Sally H. Ibbotson
- Photobiology Unit, Dermatology Department, Ninewells Hospital, University of Dundee School of Medicine, Dundee, United Kingdom
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50
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Ortiz-Salvador J, Subiabre-Ferrer D, Saneleuterio-Temporal M, Victoria Martínez A, Pérez-Ferriols A, Vilata Corell J, Alegre de Miquel V. Photocarcinogenic Risk Associated With Narrowband UV-B Phototherapy: An Epidemiologic Study in a Tertiary Care Hospital. ACTAS DERMO-SIFILIOGRAFICAS 2018. [DOI: 10.1016/j.adengl.2018.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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