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Roux J, Sharma AN, Arora J, Cohen JL. Exploring chemoprevention strategies: mitigating skin cancer in high-risk individuals. Arch Dermatol Res 2024; 316:446. [PMID: 38955838 DOI: 10.1007/s00403-024-03204-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/18/2024] [Accepted: 06/23/2024] [Indexed: 07/04/2024]
Affiliation(s)
- Jennifer Roux
- School of Medicine, University of California, Irvine, CA, USA
| | - Ajay N Sharma
- Department of Dermatology, University of California, 118 Medical Surge I, Irvine, CA, 92697, USA.
| | - Jagmeet Arora
- School of Medicine, University of California, Irvine, CA, USA
| | - Joel L Cohen
- Department of Dermatology, University of California, 118 Medical Surge I, Irvine, CA, 92697, USA
- AboutSkin Dermatology and DermSurgery, Greenwood Village, Irvine, CO, USA
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2
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Jiang R, Fritz M, Que SKT. Cutaneous Squamous Cell Carcinoma: An Updated Review. Cancers (Basel) 2024; 16:1800. [PMID: 38791879 PMCID: PMC11119634 DOI: 10.3390/cancers16101800] [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: 04/12/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Representing the second most common skin cancer, the incidence and disease burden of cutaneous squamous cell carcinoma (cSCC) continues to increase. Surgical excision of the primary site effectively cures the majority of cSCC cases. However, an aggressive subset of cSCC persists with clinicopathological features that are indicative of higher recurrence, metastasis, and mortality risks. Acceleration of these features is driven by a combination of genetic and environmental factors. The past several years have seen remarkable progress in shaping the treatment landscape for advanced cSCC. Risk stratification and clinical management is a top priority. This review provides an overview of the current perspectives on cSCC with a focus on staging, treatment, and maintenance strategies, along with future research directions.
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Affiliation(s)
- Rina Jiang
- Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Mike Fritz
- Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Syril Keena T. Que
- Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
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3
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Patro N, Sathishkumar D, Panda M, Mahajan R. Algorithmic approach toward diagnosis of patients with congenital photosensitivity disorders and review of literature. Int J Dermatol 2024; 63:298-305. [PMID: 38115704 DOI: 10.1111/ijd.16965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/15/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
The congenital photosensitivity disorders present as cutaneous signs and symptoms secondary to photosensitivity, extracutaneous manifestations, and a predisposition to malignancy. Diagnosis of these conditions mainly depend on clinical findings as the molecular analysis is not always feasible. A review of all the related articles collected after a thorough literature search using keywords, "congenital AND photosensitivity NOT acquired" and the individual diseases was done. A total of 264 articles were included in the review. An algorithm for diagnosis of the different congenital photosensitivity disorders based on the various clinical presentations has been proposed. An early suspicion and diagnosis of the different congenital photosensitivity disorders is the cornerstone behind prompt institution of prevention and treatment, and decreasing the associated morbidity.
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Affiliation(s)
- Nibedita Patro
- Department of Dermatology, Venereology & Leprosy, Hi-Tech Medical College & Hospital, Bhubaneswar, India
| | | | - Maitreyee Panda
- Department of Dermatology, Venereology & Leprosy, IMS & SUM Hospital, Bhubaneswar, India
| | - Rahul Mahajan
- Department of Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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4
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Bernardi M, Vernizzi M, Baraldi L, Balog S, Bassanetti I, Sgarbi E, Fornasari L, Arrigoni C, Cardarelli F. Phasor-FLIM-guided unraveling of ATRA supramolecular organization in liposomal nanoformulations. NANOSCALE 2023; 15:19085-19090. [PMID: 37991853 DOI: 10.1039/d3nr03420h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Here we use fluorescence lifetime imaging microscopy (FLIM) to study the supramolecular organization of nanoencapsulated liposomal all-trans retinoic acid (ATRA), exploiting ATRA's intrinsic fluorescence as a source of signal and phasor transformation as a fit-free analytical approach to lifetime data. Our non-invasive method is suitable for checking for the presence of a fraction of ATRA molecules interacting with liposomal membranes. The results are validated by independent small-angle X-ray scattering (SAXS) and nano-differential scanning calorimetry (NanoDSC) measurements, probing ATRA's putative position on the membrane and effect on membrane organization. Besides the insights on the specific case-study proposed, the present results confirm the effectiveness of Phasor-FLIM analysis in elucidating the nanoscale supramolecular organization of fluorescent drugs in pharmaceutical formulations. This underscores the importance of leveraging advanced imaging techniques to deepen our understanding and optimize drugs' performance in delivery applications.
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Affiliation(s)
- Mario Bernardi
- Laboratorio NEST, Scuola Normale Superiore, Pisa, Italy.
| | | | - Laura Baraldi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, 43124 Parma, Italy
| | - Sandor Balog
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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Acitretin Enhances the Cytotoxic Effect of 5-aminolevulinic Acid Photodynamic Therapy on Squamous Cell Carcinoma Cells. Photodiagnosis Photodyn Ther 2022; 39:102969. [PMID: 35714900 DOI: 10.1016/j.pdpdt.2022.102969] [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: 03/25/2022] [Revised: 06/06/2022] [Accepted: 06/14/2022] [Indexed: 11/22/2022]
Abstract
The efficacy of 5-aminolevulinic acid-mediated photodynamic therapy (ALA-PDT) on invasive cutaneous squamous cell carcinoma (cSCC) remains to be improved due to the limited penetration of this treatment. Previous study showed that acitretin and ALA-PDT had synergistic effect on cSCC, but whether acitretin can enhance the cytotoxic effect of ALA-PDT on cSCC is unclear. OBJECTIVE To investigate whether acitretin can enhance the cytotoxic effect of ALA-PDT on SCL-1 cells, as well as the possible mechanism involved. METHODS Inverted microscopy, trypan blue exclusion assay, and flow cytometry were used to studied the morphology, viability and apoptosis of SCL-1 cells treated with acitretin, ALA-PDT and acitretin followed by ALA-PDT treatment, respectively. Confocal microscopy was applied to detect the ROS formation of SCL-1 cells treated with acitretin of four different concentrations. The ROS formation of SCL-I cells treated with acitretin of four different concentrations followed by ALA-PDT treatment was detected using confocal microscopy and flow cytometry. RESULTS SCL-1 cells exhibited a significant morphological alteration when treated with acitretin followed by ALA-PDT. The combination of acitretin and ALA-PDT induced a higher cell death rate and apoptosis than that with acitretin or ALA-PDT treatment alone. ROS could be induced when incubated with acitretin at a concentration of 6.4 × 10-4mg /mL or above. However, a higher level of ROS formation was observed when SCL-1 cells were treated with acitretin followed by ALA-PDT than that with ALA-PDT or acitretin alone. CONCLUSION Acitretin can enhance the cytotoxic effect of ALA-PDT on SCL-1 cells, possibly via the ROS pathway.
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Allnutt KJ, Vogrin S, Li J, Goh MS, Brennand S, Davenport R, Chong AH. A long-term cohort study of acitretin for prevention of keratinocyte carcinoma in solid organ transplant recipients. Australas J Dermatol 2022; 63:e121-e126. [PMID: 35333399 PMCID: PMC9311671 DOI: 10.1111/ajd.13821] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/25/2022] [Accepted: 03/05/2022] [Indexed: 12/11/2022]
Abstract
Background Solid organ transplant recipients (SOTR) are at high risk of keratinocyte carcinoma (KC). Long‐term evidence for acitretin as chemoprophylaxis in this population is lacking. Objective To determine the benefit of long‐term acitretin for KC chemoprevention in SOTR. Methods A retrospective cohort study of SOTR treated with acitretin at an Australian transplant dermatology clinic was performed. General estimating equations were used to evaluate change in rates of histologically confirmed KC in the 6–12 months prior to acitretin and following a minimum 6 months of treatment. A control group of patients within the same service was included, comprising SOTR who were not treated with acitretin. Results Twenty‐two patients received acitretin treatment for at least 6 months, eighteen for at least 5 years and four for at least 9 years. The median KC rate pretreatment was 3.31 per year (IQR 1.93, 5.40). There was a significant reduction in the rate of KC in the first year of acitretin treatment (IRR 0.41, 95% CI 0.22, 0.76, P = 0.005), and this effect was observed for 5 years (IRR at 5 years 0.34, 95% CI 0.17, 0.67, P = 0.002). The control group had no statistically significant change in KC rate over time in the study. Conclusions Acitretin appears to be well‐tolerated and effective in reducing KC in SOTR for at least 5 years. Study limitations include its retrospective nature, small sample size and lack of blinding.
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Affiliation(s)
| | - Sara Vogrin
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Jane Li
- Skin Health Institute, Carlton, Melbourne, Victoria, Australia.,Department of Medicine (Dermatology), St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
| | - Michelle S Goh
- Skin Health Institute, Carlton, Melbourne, Victoria, Australia.,Department of Medicine (Dermatology), St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
| | - Sarah Brennand
- Skin Health Institute, Carlton, Melbourne, Victoria, Australia
| | | | - Alvin H Chong
- Skin Health Institute, Carlton, Melbourne, Victoria, Australia.,Department of Medicine (Dermatology), St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
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7
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Wilken R, Carucci J, Stevenson ML. Skin Cancers and Lung Transplant. Semin Respir Crit Care Med 2021; 42:483-496. [PMID: 34030209 DOI: 10.1055/s-0041-1728798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
It is well known that solid-organ transplant recipients (SOTRs) have a 65- to 100-fold increase in the risk of developing skin cancer, namely, nonmelanoma skin cancers (NMSCs) such as cutaneous squamous cell carcinoma (cSCC) and basal cell carcinoma (BCC). In addition, these patients are also at increased risk for development of melanoma as well as other less common cutaneous malignancies (Merkel's cell carcinoma, Kaposi's sarcoma). SOTRs with NMSC (namely cSCC) are also at significantly increased risk of poor clinical outcomes including local recurrence, nodal and distant metastasis, and disease-specific death relative to patients who are not immunosuppressed. Increased surveillance and monitoring in patients at risk of aggressive disease and poor outcomes who are on immunosuppression is essential in patients with lung transplants given the high degree of immunosuppression. Increased awareness of risks, treatments, and management allows for improved outcomes in these patients. This article will provide an overview of the risk factors for the development of cutaneous malignancies in organ transplant recipients as well as a detailed discussion of various immunosuppressant and prophylactic medications used in this patient population that contribute to the risk of developing cutaneous malignancies, with an emphasis on NMSC (cSCC and BCC) in lung transplant recipients. Finally, this article includes a discussion on the clinical and dermatologic management of this high-risk immunosuppressed population including a review of topical and systemic agents for field therapy of actinic damage and chemoprevention of keratinocyte carcinomas. In addition, indications for additional treatment and preventive measures such as adjuvant radiation treatment after surgical management of cutaneous malignancies and potential modification of immunosuppressive medication regimens are discussed.
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Affiliation(s)
- Reason Wilken
- The Ronald O. Perelman Department of Dermatology, NYU Langone Health, New York, New York
| | - John Carucci
- The Ronald O. Perelman Department of Dermatology, NYU Langone Health, New York, New York
| | - Mary L Stevenson
- The Ronald O. Perelman Department of Dermatology, NYU Langone Health, New York, New York
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Cosio T, Di Prete M, Gaziano R, Lanna C, Orlandi A, Di Francesco P, Bianchi L, Campione E. Trifarotene: A Current Review and Perspectives in Dermatology. Biomedicines 2021; 9:biomedicines9030237. [PMID: 33652835 PMCID: PMC7996910 DOI: 10.3390/biomedicines9030237] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/06/2021] [Accepted: 02/18/2021] [Indexed: 12/12/2022] Open
Abstract
Retinoids have numerous applications in inflammatory, dyskeratotic, and oncohematology diseases. Retinoids have now reached the fourth generation, progressively reducing toxicity whilst increasing their efficacy. Trifarotene is a new fourth-generation retinoid with a selective action on RAR-γ. In this review, we reported the trials—both concluded and in progress—including the use of trifarotene in dermatological diseases. Studies were identified by searching electronic databases (MEDLINE, EMBASE, PubMed, Cochrane, Trials.gov) from 2012 to today and reference lists of respective articles. Only articles published in English language were included. Randomized trials evaluating trifarotene tolerability, safety, and efficacy in congenital ichthyosis and acne have demonstrated great results and mild side effects, leading to the approval by the FDA of trifarotene for the treatment of lamellar ichthyosis in 2014, and of acne vulgaris in October 2019. No high-quality randomized clinical trials have evaluated the treatment of primary cutaneous lymphomas with trifarotene. Finally, we are hypothesizing future perspectives in the treatment of non-melanoma skin cancers, fungal infections, photoaging, and hand-foot skin reactions with trifarotene.
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Affiliation(s)
- Terenzio Cosio
- Dermatology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (T.C.); (C.L.); (L.B.)
| | - Monia Di Prete
- Anatomic Pathology Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (M.D.P.); (A.O.)
| | - Roberta Gaziano
- Microbiology Section, Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (R.G.); (P.D.F.)
| | - Caterina Lanna
- Dermatology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (T.C.); (C.L.); (L.B.)
| | - Augusto Orlandi
- Anatomic Pathology Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (M.D.P.); (A.O.)
| | - Paolo Di Francesco
- Microbiology Section, Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (R.G.); (P.D.F.)
| | - Luca Bianchi
- Dermatology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (T.C.); (C.L.); (L.B.)
| | - Elena Campione
- Dermatology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (T.C.); (C.L.); (L.B.)
- Correspondence:
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9
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Everts HB, Akuailou EN. Retinoids in Cutaneous Squamous Cell Carcinoma. Nutrients 2021; 13:E153. [PMID: 33466372 PMCID: PMC7824907 DOI: 10.3390/nu13010153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 12/31/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023] Open
Abstract
Animal studies as early as the 1920s suggested that vitamin A deficiency leads to squamous cell metaplasia in numerous epithelial tissues including the skin. However, humans usually die from vitamin A deficiency before cancers have time to develop. A recent long-term cohort study found that high dietary vitamin A reduced the risk of cutaneous squamous cell carcinoma (cSCC). cSCC is a form of nonmelanoma skin cancer that primarily occurs from excess exposure to ultraviolet light B (UVB). These cancers are expensive to treat and can lead to metastasis and death. Oral synthetic retinoids prevent the reoccurrence of cSCC, but side effects limit their use in chemoprevention. Several proteins involved in vitamin A metabolism and signaling are altered in cSCC, which may lead to retinoid resistance. The expression of vitamin A metabolism proteins may also have prognostic value. This article reviews what is known about natural and synthetic retinoids and their metabolism in cSCC.
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Affiliation(s)
- Helen B Everts
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, TX 76209, USA
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10
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Bagatin E, Costa CS, Rocha MADD, Picosse FR, Kamamoto CSL, Pirmez R, Ianhez M, Miot HA. Consensus on the use of oral isotretinoin in dermatology - Brazilian Society of Dermatology. An Bras Dermatol 2020; 95 Suppl 1:19-38. [PMID: 33036809 PMCID: PMC7772596 DOI: 10.1016/j.abd.2020.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/11/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Isotretinoin is a synthetic retinoid, derived from vitamin A, with multiple mechanisms of action and highly effective in the treatment of acne, despite common adverse events, manageable and dose-dependent. Dose-independent teratogenicity is the most serious. Therefore, off-label prescriptions require strict criteria. OBJECTIVE To communicate the experience and recommendation of Brazilian dermatologists on oral use of the drug in dermatology. METHODS Eight experts from five universities were appointed by the Brazilian Society of Dermatology to develop a consensus on indications for this drug. Through the adapted DELPHI methodology, relevant elements were listed and an extensive analysis of the literature was carried out. The consensus was defined with the approval of at least 70% of the experts. RESULTS With 100% approval from the authors, there was no doubt about the efficacy of oral isotretinoin in the treatment of acne, including as an adjunct in the correction of scars. Common and manageable common adverse events are mucocutaneous in nature. Others, such as growth retardation, abnormal healing, depression, and inflammatory bowel disease have been thoroughly investigated, and there is no evidence of a causal association; they are rare, individual, and should not contraindicate the use of the drug. Regarding unapproved indications, it may represent an option in cases of refractory rosacea, severe seborrheic dermatitis, stabilization of field cancerization with advanced photoaging and, although incipient, frontal fibrosing alopecia. For keratinization disorders, acitretin performs better. In the opinion of the authors, indications for purely esthetic purposes or oil control are not recommended, particularly for women of childbearing age. CONCLUSIONS Approved and non-approved indications, efficacy and adverse effects of oral isotretinoin in dermatology were presented and critically evaluated.
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Affiliation(s)
- Ediléia Bagatin
- Department of Dermatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | | | - Fabíola Rosa Picosse
- Department of Dermatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Rodrigo Pirmez
- Centro de Estudos dos Cabelos, Instituto de Dermatologia Professor Rubem David Azulay, Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Mayra Ianhez
- Department of Tropical Medicine and Dermatology, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Hélio Amante Miot
- Department of Dermatology, Faculdade de Ciências Médicas e Biológicas de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brazil.
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Ye T, Jiang B, Chen B, Liu X, Yang L, Xiong W, Yu B. 5-aminolevulinic acid photodynamic therapy enhance the effect of acitretin on squamous cell carcinoma cells: An in vitro study. Photodiagnosis Photodyn Ther 2020; 31:101887. [PMID: 32565180 DOI: 10.1016/j.pdpdt.2020.101887] [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: 03/06/2020] [Revised: 06/10/2020] [Accepted: 06/12/2020] [Indexed: 11/25/2022]
Abstract
Squamous cell carcinoma (SCC) remains the second most common nonmelanoma skin cancer (NMSC) worldwide. Both acitretin and 5-Aminolevulinic acid mediated photodynamic therapy (ALA-PDT) have validated effect on SCC. However, the effects of both treatmens remain limited, and there has been no report concerning the potential synergistic effect of both treatments for SCC. OBJECTIVE To investigate the cytotoxic effect of acitretin on SCL-1 cells, and whether ALA-PDT enhances this effect. METHODS CCK-8 and trypan blue exclusion array were used to detect the cell cytotoxicity after acitretin treatment with different concentrations (1.6 × 10-4mg/mL, 1.6 × 10-3 mg/mL, 1.6 × 10-2mg/mL and 1.6 × 10-1mg/mL) for 24 h, 48 h and 72 h. Flow cytometry and trypan blue exclusion assay were used to detect the apoptosis and viability of SCL-1 cells after treated with acitretin, ALA-PDT and ALA-PDT immediately followed by acitretin. Independent sample t test was used to analyze the different incubation time of acitretin and acitretin combined with ALA-PDT on SCL-1 cells. Bonferroni Test One-way Anova method was used to analyze the effect of different treatment on the SCL-1 cells. RESULTS A significant cytotoxic effect was observed after acitretin treatment, in an acitretin concentration-dependent manner within the range of 1.6 × 10-4mg/mL to 1.6 × 10-1mg/mL and an acitretin incubation time-dependent manner within 24 h-72 h. The total apoptosis rate and dead cells rate in group of ALA-PDT combined with acitretin were both significantly higher than that of acitretin, ALA-PDT group. A stronger apoptotic and cytotoxic effect detected 24 h after treated with acitretin than that of 12 h was observed in this study. CONCLUSION Acitretin has a cytotoxic effect on SCL-1 cells, and ALA-PDT treatment enhances the the cytotoxic effect of acitretin.
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Affiliation(s)
- TingLu Ye
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Bin Jiang
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - BanCheng Chen
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - XiaoMing Liu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - LiLi Yang
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Wei Xiong
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Bo Yu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
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Affiliation(s)
- Nagy Morsy
- Department of Chemistry, Faculty of Sciences and Arts, Khulais, University of Jeddah, Jeddah, Saudi Arabia
- Department of Chemistry of Natural Compounds, National Research Centre, Dokki, Cairo, Egypt
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13
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Williams A, Gwinn C, Iyer J, Fleckman P, Shinohara MM. The management of numerous carcinomatous sequelae of human papilloma virus in an allogeneic stem cell transplant patient with chronic graft versus host disease. JAAD Case Rep 2019; 5:162-166. [PMID: 30733986 PMCID: PMC6355441 DOI: 10.1016/j.jdcr.2018.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Amanda Williams
- University of Washington School of Medicine, Seattle, Washington
| | - Courtney Gwinn
- Division of Dermatology, University of Washington, Seattle, Washington
| | - Jayasri Iyer
- Division of Dermatology, University of Washington, Seattle, Washington
| | - Philip Fleckman
- Division of Dermatology, University of Washington, Seattle, Washington
| | - Michi M Shinohara
- Division of Dermatology, University of Washington, Seattle, Washington.,Division of Dermatopathology, University of Washington, Seattle, Washington
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15
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Ianhez M, Pinto SA, Miot HA, Bagatin E. A randomized, open, controlled trial of tretinoin 0.05% cream vs. low-dose oral isotretinoin for the treatment of field cancerization. Int J Dermatol 2019; 58:365-373. [PMID: 30706457 DOI: 10.1111/ijd.14363] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 10/24/2018] [Accepted: 11/29/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Sun exposure may lead to actinic keratoses (AKs), field cancerization, and skin cancer. Effective treatment of AKs and field cancerization is important. Oral and topical retinoids can be used for this purpose. To compare clinical, histological, and immunohistochemical effects of oral and topical retinoid for AKs and field cancerization on face and upper limbs of immunocompetent patients, as well as the impact on quality of life, safety, and tolerability. METHODS This study compared 10 mg/day oral isotretinoin (ISO) to 0.05% tretinoin cream (TRE) every other night, associated with sunscreen (SPF 60). Patients of both genders, aged 50-75 years, underwent cryotherapy with liquid nitrogen for AKs at baseline and after 120 days when they were randomized into two groups, TRE (n = 31) and ISO (n = 30), for 6 months. Outcome measures were: number of AKs, histological (thickness of stratum corneum and epithelium) and immunohistochemical parameters (p53, Bcl-2 and Bax), dermatology life quality index (DLQI), and adverse events. RESULTS Both treatments reduced the number of AKs (around 28%), the thickness of stratum corneum, and expression of p53 and Bax. By contrast, the epithelium thickness and Bcl-2 expression increased. There was no difference in the outcomes between TRE and ISO. Both treatments improved quality of life and were well tolerated with minimal side effects. CONCLUSIONS Retinoids are effective and safe for field cancerization. Classical treatments for field cancerization (imiquimod and ingenol mebutate) are used for a short period; retinoids may be a good choice to intercalate with them and can be used continuously.
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Affiliation(s)
- Mayra Ianhez
- Dermatology, Universidade Federal de Goiás, Goiânia, Brazil
| | | | - Helio A Miot
- Dermatology, Universidade Estadual Paulista - Julio de Mesquita Filho, UNESP, Botucatu, Brazil
| | - Ediléia Bagatin
- Dermatology, Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM), Sao Paulo, Brazil
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Puviani M, Milani M. Treatment of Grade II and III Actinic Keratosis Lesions with a Film-Forming Medical Device Containing Sunscreen/Piroxicam 0.8% and a Retinoic Acid/Glycolic Gel: A Pilot Trial. Dermatol Ther (Heidelb) 2018; 8:399-404. [PMID: 29855896 PMCID: PMC6109025 DOI: 10.1007/s13555-018-0244-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Indexed: 11/29/2022] Open
Abstract
Introduction Lesion and field-targeted treatments of actinic keratosis (AK) are commonly indicated for grade I and II type lesions. Grade III lesions are in general more difficult to treat. A film-forming medical device containing piroxicam 0.8% and sunscreen (SPF 50+) (PS) has been shown to be effective in the treatment of grade I and II AK lesions. Topical and oral retinoids have been utilized in AK and non-melanoma skin cancers. Topical glycolic acid promotes keratolysis and stimulates collagen synthesis for repair and skin rejuvenation and could be useful in AK treatment strategies. A gel containing retinoid acid (0.02%) and glycolic acid (4%) (RC) is commercially available. The objective of the study was to evaluate the efficacy and local tolerability of a combined treatment approach with PS and RC in subjects with multiple grade II and III AK lesions. Methods Twenty-two subjects (16 males and 6 females; mean age 68 years) with more than five AK lesions were enrolled after obtaining their informed consent in a 3-month trial. PS cream was applied twice daily every day and RC gel was applied twice daily for 2 consecutive days every week. The primary endpoint was the evolution of the AK mean number from baseline to the end of the trial. Secondary endpoints were the thickness of the target lesion (expressed in mm3) and the erythema score (hemoglobin content), evaluated using a standardized computer-based image acquisition analysis system (Anthera 3D). Results At baseline, the mean (SD) lesion number was 7.7 (3) for grade II and 1.4 (1) for grade III AK. At the end of the study, a significant (P = 0.001) reduction was observed for both grade II (− 81%; from 7.7 to 1.5) and grade III (− 22%) lesions. Six grade III lesions out of 31 (20%), presented at baseline, completely disappeared at month 3. For grade III lesions, a significant mean thickness reduction of 51% was observed at month 3. The erythema score (all lesions) was reduced by 70%. Four patients out of 22 (18%) were completely free of AK lesions at month 3. No severe side effects were reported. Conclusion In this exploratory trial, a combined treatment with a cream containing piroxicam and sunscreen and a retinoic/glycolic gel was associated with a substantial reduction of both grade II and III AK lesions with good local tolerability. Funding Cantabria Labs Difa Cooper.
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Affiliation(s)
- Mario Puviani
- Dermatology Division, Sassuolo Hospital, Sassuolo, Italy.,Medical Department, Cantabria Labs Difa Cooper, Caronno Pertusella, VA, Italy
| | - Massimo Milani
- Dermatology Division, Sassuolo Hospital, Sassuolo, Italy. .,Medical Department, Cantabria Labs Difa Cooper, Caronno Pertusella, VA, Italy.
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Cutaneous squamous cell carcinoma. J Am Acad Dermatol 2018; 78:249-261. [DOI: 10.1016/j.jaad.2017.08.058] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/23/2017] [Accepted: 08/17/2017] [Indexed: 11/19/2022]
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Fernandes AR, Santos AC, Sanchez-Lopez E, Kovačević AB, Espina M, Calpena AC, Veiga FJ, Garcia ML, Souto EB. Neoplastic Multifocal Skin Lesions: Biology, Etiology, and Targeted Therapies for Nonmelanoma Skin Cancers. Skin Pharmacol Physiol 2017; 31:59-73. [PMID: 29262420 DOI: 10.1159/000479529] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 07/13/2017] [Indexed: 12/30/2022]
Abstract
Neoplastic skin lesions are multifocal, diffuse skin infiltrations of particular relevance in the differential diagnosis of ulcerative, nodular, or crusting skin lesions. Nonmelanoma skin cancers (NMSCs), namely, basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and also actinic keratosis (AK), are the most common malignant tumors in humans. BCCs do not proliferate rapidly and most of the times do not metastasize, while SCCs are more infiltrative, metastatic, and destructive. AKs are precursor lesions of cutaneous SCCs. The classical therapy of NMSCs makes use of photodynamic therapy associated with chemotherapeutics. With improved understanding of the pathological mechanisms of tumor initiation, progression, and differentiation, a case is made towards the use of targeted chemotherapy with the intent to reduce the cytotoxicity of classical treatments. The present review aims to describe the current state of the art on the knowledge of NMSC, including its risks factors, oncogenes, and skin carcinogenesis, discussing the classical therapy against new therapeutic options.
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Affiliation(s)
- Ana R Fernandes
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Coimbra, Portugal
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Cristiano MC, Cosco D, Celia C, Tudose A, Mare R, Paolino D, Fresta M. Anticancer activity of all-trans retinoic acid-loaded liposomes on human thyroid carcinoma cells. Colloids Surf B Biointerfaces 2016; 150:408-416. [PMID: 27829536 DOI: 10.1016/j.colsurfb.2016.10.052] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/22/2016] [Accepted: 10/25/2016] [Indexed: 12/12/2022]
Abstract
All-trans retinoic acid (ATRA) is an anti-tumor compound, exerting different anti-cancer effects on different types of cancer cells. Unfortunately, retinoids are also characterized by certain side effects following systemic administration, such as the burning of skin and general malaise. The highly variable degree of bioavailability of ATRA plus its tendency to induce its own destruction through metabolic degradation following oral treatment necessitate the development of alternative formulations. The aim of this work is to evaluate the physico-chemical properties of unilamellar, ATRA-containing liposomes and to investigate the cytotoxic activity of this potential nanomedicine on human thyroid carcinoma cells. Liposomes made up of DPPC/Chol/DSPE-mPEG2000 (6:3:1 molar ratio), characterized by a mean diameter of ∼200nm, a polydispersity index of 0.1 and a negative surface charge, were used as ATRA-carriers and their antiproliferative efficacy was investigated in comparison with the free drug on three different human thyroid carcinoma cell lines (PTC-1, B-CPAP, and FRO) through MTT-testing. The liposomes protected the ATRA against photodegradation and increased its antiproliferative properties due to the improvement of its cellular uptake. ATRA-loaded liposomes could be a novel formulation useful for the treatment of anaplastic thyroid carcinoma.
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Affiliation(s)
- Maria Chiara Cristiano
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy
| | - Donato Cosco
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Building of BioSciences, V.le Europa, I-88100 Germaneto Catanzaro (CZ), Italy
| | - Christian Celia
- Department of Pharmacy, University "G. D'Annunzio" of Chieti-Pescara, Chieti 66013, Italy; Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Andra Tudose
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy; Department of Applied Mathematics and Biostatistics, University of Medicine and Pharmacy "Carol Davila" Bucharest, Faculty of Pharmacy, Traian Vuia, 020956, Bucharest, Romania
| | - Rosario Mare
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy
| | - Donatella Paolino
- IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Building of BioSciences, V.le Europa, I-88100 Germaneto Catanzaro (CZ), Italy; Department of Experimental and Clinical Medicine, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy
| | - Massimo Fresta
- Department of Health Sciences, University "Magna Græcia" of Catanzaro, Campus Universitario "S. Venuta", Viale S. Venuta, Germaneto, I-88100 Catanzaro, Italy; IRC-FSH-Interregional Research Center for Food Safety & Health, University of Catanzaro "Magna Græcia", Building of BioSciences, V.le Europa, I-88100 Germaneto Catanzaro (CZ), Italy.
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Wu CS, Chen GS, Lin PY, Pan IH, Wang ST, Lin SH, Yu HS, Lin CC. Tazarotene induces apoptosis in human basal cell carcinoma via activation of caspase-8/t-Bid and the reactive oxygen species-dependent mitochondrial pathway. DNA Cell Biol 2014; 33:652-66. [PMID: 24927175 DOI: 10.1089/dna.2014.2366] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Previous studies suggest that tazarotene, a new member of the acetylenic class of RARβ/γ selective retinoids which is approved to treat a variety of skin diseases, exhibits an anti-proliferative effect in human basal cell carcinoma (BCC) by triggering caspase-dependent apoptosis. However, the detailed molecular mechanisms underlying the anti-tumor activity of tazarotene are poorly understood. This study aims at investigating the molecular mechanisms of tazarotene-induced apoptosis in human BCC cells. Our results are the first to demonstrate that tazarotene induces mitochondria-dependent cleavage of caspase-9 and -3 and PARP in BCC cells by producing reactive oxygen species (ROS) and activating caspase-8 through both ROS and death receptor signaling. These events are accompanied by a decrease in BCL-2 and BCL-xl anti-apoptotic proteins as well as by survivin and XIAP, two IAP family members. Furthermore, our results presented for the first time that tazarotene triggers a convergence of the intrinsic and extrinsic apoptotic pathways via the caspase-8-truncated Bid signaling pathway. Collectively, these data provide insights into the molecular mechanisms underlying tazarotene-induced apoptosis in human BCC cells, suggesting that this compound is a potential anti-skin cancer drug.
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Affiliation(s)
- Chieh-Shan Wu
- 1 Department of Dermatology, Kaohsiung Veterans General Hospital , Kaohsiung, Taiwan
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Ianhez M, Fleury LFF, Miot HA, Bagatin E. Retinoids for prevention and treatment of actinic keratosis. An Bras Dermatol 2014; 88:585-93. [PMID: 24068130 PMCID: PMC3760934 DOI: 10.1590/abd1806-4841.20131803] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Accepted: 10/01/2012] [Indexed: 02/01/2023] Open
Abstract
Actinic keratosis is a common cause of dermatological consultations and it presents a strong association with squamous cell carcinoma. Many substances are used for treatment and prevention, such as retinoids. Nevertheless, many studies on retinoids emphasize their application in treating and preventing non melanoma skin cancers. In this article, we reviewed studies about systemic and topical retinoids used with immunocompetent patients and organ transplant recipients with actinic keratosis, as primary or secondary outcomes. The majority of these papers pointed to a reduction in actinic keratosis count after treatment with retinoids. However, studies need to be better-defined in order to address the lack of a standardized dose, the absence of control groups, the low number of patients and short follow-up periods. Blind, randomized and controlled clinical trials with adequate sample sizes, specifically focused on actinic keratosis, are needed to clarify the real benefit of topical and/or oral retinoids. Comparison of efficacy and safety between oral and topical retinoids in the prevention and treatment of non-melanoma skin cancers and actinic keratosis is an essential pre requisite to establish new strategies to control these conditions.
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Affiliation(s)
- Mayra Ianhez
- Paulista Medical School, Federal University of São Paulo
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23
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Bagatin E. Oral isotretinoin: the most promising dermatological off-label uses. ACTA ACUST UNITED AC 2014. [DOI: 10.1586/edm.10.58] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Bagatin E, Guadanhim LRS, Enokihara MMSS, Sanudo A, Talarico S, Miot HA, Gibson L. Low-dose oral isotretinoin versus topical retinoic acid for photoaging: a randomized, comparative study. Int J Dermatol 2013; 53:114-22. [DOI: 10.1111/ijd.12191] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Edileia Bagatin
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
| | - Lilia R. S. Guadanhim
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
| | | | - Adriana Sanudo
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
| | - Sérgio Talarico
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
| | - Helio A. Miot
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
| | - Lawrence Gibson
- Department of Dermatology; Universidade Federal de São Paulo (UNIFESP); SN Botucatu SP Brazil
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Photosensitivity disorders in children: part II. J Am Acad Dermatol 2013; 67:1113.e1-15; quiz 1128, 1127. [PMID: 23158622 DOI: 10.1016/j.jaad.2012.07.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 07/29/2012] [Indexed: 11/21/2022]
Abstract
Photosensitivity disorders in children encompass a diverse group of diseases. Some inherited disorders manifest with photosensitivity early in life. Specific extracutaneous association may be the clue to diagnosis in this group of pediatric photodermatoses. Part II of this 2-part review covers hereditary photodermatoses caused by defects in nucleotide excision repair, double strand break repair, or localized or systemic biochemical abnormalities. Diagnosis and management of photoaggravated dermatoses are also discussed. Sun protection strategies are required in all patients with evidence of photosensitivity. Early recognition and prompt diagnosis is essential to minimize the long-term complications associated with inadequate photoprotection.
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Prado R, Francis SO, Mason MN, Wing G, Gamble RG, Dellavalle R. Nonmelanoma skin cancer chemoprevention. Dermatol Surg 2011; 37:1566-78. [PMID: 21895847 DOI: 10.1111/j.1524-4725.2011.02108.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Renata Prado
- Department of Dermatology, School of Medicine, University of Colorado, Aurora, Colorado, USA.
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Macbeth AE, Grindlay DJC, Williams HC. What's new in skin cancer? An analysis of guidelines and systematic reviews published in 2008-2009. Clin Exp Dermatol 2011; 36:453-8. [PMID: 21671988 DOI: 10.1111/j.1365-2230.2011.04087.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This review summarizes clinically important findings from 17 systematic reviews and 2 guidelines on skin cancer indexed between April 2008 and April 2009. Melanoma primary-prevention measures, such as education, are more likely to be successful in younger children than adolescents, and general population screening for melanoma by whole-body examination is not currently supported by the evidence. A large systematic review of melanoma and pregnancy concluded that pregnancy does not affect prognosis. Two systematic reviews imply that sunburn later in life also increases the risk of melanoma, and that it is just as important as sunburn early in life. Three systematic reviews discussed the role of positron emission tomography and sentinel lymph-node biopsy for melanoma staging, but produced conflicting results. Superior diagnostic accuracy of dermatoscopy over naked-eye examination for melanoma was found in one review, while a second implied nonsignificantly higher sensitivity of computer-based diagnostic methods over dermatoscopy for melanoma but with reduced specificity. There were no identified randomized controlled trials of treatments for unresectable recurrent melanoma, and a review of immunotherapy with vaccines for melanoma failed to prove improved overall and disease-free survival. Guidelines for the management of basal cell carcinoma call for risk stratification, based on numerous factors including tumour size, site and histological subtype. Squamous cell carcinoma of the ear has been shown to spread to regional lymph nodes more commonly than to other sites, and may be predicted by depth of invasion, tumour size, cellular differentiation and completeness of excision.
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Affiliation(s)
- A E Macbeth
- Department of Dermatology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
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The effect of retinoic acid receptor agonist acitretin on the production of bile and concentrations of some serum components in ovariectomized rats. Menopause 2011; 18:213-8. [PMID: 20861754 DOI: 10.1097/gme.0b013e3181ef22b8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Acitretin is an oral retinoid that is approved for the treatment of psoriasis and in the chemoprevention of nonmelanoma skin cancer. The metabolism of acitretin occurs in the liver and may affect other metabolic processes in the liver, such as metabolism of bilirubin, bile acids, and lipids. These processes may be also affected by physiologic loss of estrogens in postmenopausal women. Therefore, the aim of this study was to examine the effect of acitretin on the secretion and composition of bile and the turnover of cholesterol in a model of estrogen deficiency in ovariectomized rats. METHODS The study was carried out on female Wistar rats divided into three groups: sham-operated control, ovariectomized control, and ovariectomized rats receiving acitretin. The studied group was administered acitretin (Neotigason capsules 25 mg, Roche; 7.1 mg/kg body weight per 24 h) for 28 days. Bile fractions and blood were collected for determinations of concentration of bile acids, total cholesterol, calcium ions, chloride ions, and direct bilirubin. In addition, low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol were assayed. RESULTS It was found that ovariectomy produced alterations in the process of secretion of bile and its principal components: cholesterol, bile acids, chloride ions, and bilirubin. The administration of acitretin decreased the secretion of bile and bile cholesterol, as well as serum levels of total, LDL, and HDL cholesterol, and moreover increased the proportion of bile acids to total cholesterol. CONCLUSIONS Acitretin may influence the hepatic metabolism of bile, bile acids, and lipids. This action is associated with a decrease in factors influencing the lithogenicity of bile, with reductions in the serum levels of total, LDL, and HDL cholesterol.
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Orosco RK, Wang T, Byrne PJ. Xeroderma Pigmentosum in an African-American. ACTA ACUST UNITED AC 2011; 73:162-5. [DOI: 10.1159/000328343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2011] [Accepted: 04/05/2011] [Indexed: 11/19/2022]
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Krueger C, Hoffmann FM. Identification of retinoic acid in a high content screen for agents that overcome the anti-myogenic effect of TGF-beta-1. PLoS One 2010; 5:e15511. [PMID: 21152098 PMCID: PMC2994897 DOI: 10.1371/journal.pone.0015511] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 10/07/2010] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Transforming growth factor beta 1 (TGF-β1) is an inhibitor of muscle cell differentiation that is associated with fibrosis, poor regeneration and poor function in some diseases of muscle. When neutralizing antibodies to TGF-β1 or the angiotensin II inhibitor losartan were used to reduce TGF-β1 signaling, muscle morphology and function were restored in mouse models of Marfan Syndrome and muscular dystrophy. The goal of our studies was to identify additional agents that overcome the anti-myogenic effect of TGF-β1. METHODOLOGY/PRINCIPAL FINDINGS A high-content cell-based assay was developed in a 96-well plate format that detects the expression of myosin heavy chain (MHC) in C2C12 cells. The assay was used to quantify the dose-dependent responses of C2C12 cell differentiation to TGF-β1 and to the TGF-β1 Type 1 receptor kinase inhibitor, SB431542. Thirteen agents previously described as promoting C2C12 differentiation in the absence of TGF-β1 were screened in the presence of TGF-β1. Only all-trans retinoic acid and 9-cis retinoic acid allowed a maximal level of C2C12 cell differentiation in the presence of TGF-β1; the angiotensin-converting enzyme inhibitor captopril and 10 nM estrogen provided partial rescue. Vitamin D was a potent inhibitor of retinoic acid-induced myogenesis in the presence of TGF-β1. TGF-β1 inhibits myoblast differentiation through activation of Smad3; however, retinoic acid did not inhibit TGF-β1-induced activation of a Smad3-dependent reporter gene in C2C12 cells. CONCLUSIONS/SIGNIFICANCE Retinoic acid alleviated the anti-myogenic effect of TGF-β1 by a Smad3-independent mechanism. With regard to the goal of improving muscle regeneration and function in individuals with muscle disease, the identification of retinoic acid is intriguing in that some retinoids are already approved for human therapy. However, retinoids also have well-described adverse effects. The quantitative, high-content assay will be useful to screen for less-toxic retinoids or combinations of agents that promote myoblast differentiation in the presence of TGF-β1.
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Affiliation(s)
- Chateen Krueger
- McArdle Laboratory for Cancer Research, Departments of Oncology and Medical Genetics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - F. Michael Hoffmann
- McArdle Laboratory for Cancer Research, Departments of Oncology and Medical Genetics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- * E-mail:
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Gariglio P, Gutiérrez J, Cortés E, Vázquez J. The role of retinoid deficiency and estrogens as cofactors in cervical cancer. Arch Med Res 2010; 40:449-65. [PMID: PMID: 19853185 DOI: 10.1016/j.arcmed.2009.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 07/09/2009] [Indexed: 12/18/2022]
Abstract
Persistent infection with high-risk human papillomaviruses (HR-HPVs) is involved in cervical cancer (CC), a major cause of cancer mortality worldwide. Infection occurs primarily at the transformation zone (TZ), the most estrogen- and retinoid-sensitive region of the cervix. Development of CC affects a small percentage of HR-HPV-infected women and often takes decades after infection, suggesting that HR-HPV is a necessary but not sufficient cause of CC. Thus, other cofactors are necessary for progression from cervical HR-HPV infection to cancer such as long-term use of hormonal contraceptives, multiparity, smoking, as well as micronutrient depletion and in particular retinoid deficiency, which alters epithelial differentiation, cellular growth and apoptosis of malignant cells. Therefore, early detection of HR-HPV and management of precancerous lesions together with a profound understanding of additional risk factors could be a strategy to avoid this disease. In this review we focus on the synergic effect of estrogens, retinoid deficiency and HR-HPVs in the development of CC. These risk factors may act in concert to induce neoplastic transformation in squamous epithelium of the cervix, setting the stage for secondary genetic or epigenetic events leading to cervical cancer.
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Affiliation(s)
- Patricio Gariglio
- Departamento de Genética y Biología Molecular, Cinvestav-IPN, México D.F., México.
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Bagatin E, Parada MOB, Miot HA, Hassun KM, Michalany N, Talarico S. A randomized and controlled trial about the use of oral isotretinoin for photoaging. Int J Dermatol 2010; 49:207-14. [DOI: 10.1111/j.1365-4632.2009.04310.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Deng P, Chen X, Tang Y, Wang Y, Zhang H, Zhong D. Determination of arotinoid acid in human plasma by liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:2983-8. [DOI: 10.1016/j.jchromb.2009.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Revised: 05/25/2009] [Accepted: 07/10/2009] [Indexed: 11/29/2022]
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Trapasso E, Cosco D, Celia C, Fresta M, Paolino D. Retinoids: new use by innovative drug-delivery systems. Expert Opin Drug Deliv 2009; 6:465-83. [PMID: 19413455 DOI: 10.1517/17425240902832827] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Retinoids represent an old class of bioactives used in the treatment of different skin pathologies (such as acne and psoriasis) and in the treatment of many tumors. Unfortunately, they present several side effects, i.e., burning of skin and general malaise after systemic administration and they are very unstable after exposition to light. METHODS One of the most promising new approaches for reducing the side effects of retinoids while improving their pharmacological effect is the use of drug-delivery devices. This review explains the current status of retinoid drug transport, which has been developing over the last few years, explaining the modification of their biopharmaceutical properties in detail after encapsulation/inclusion in vesicular and polymeric systems. RESULTS/CONCLUSION Different colloidal and micellar systems containing retinoid drugs have been realized furnishing important potential advancements in traditional therapy.
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Affiliation(s)
- E Trapasso
- University of Messina, Pharmacochemistry Department, University of Messina, Italy
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