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Loras A, Gil-Barrachina M, Marqués-Torrejón MÁ, Perez-Pastor G, Martinez-Cadenas C. UV-Induced Somatic Mutations Driving Clonal Evolution in Healthy Skin, Nevus, and Cutaneous Melanoma. Life (Basel) 2022; 12:life12091339. [PMID: 36143375 PMCID: PMC9503451 DOI: 10.3390/life12091339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/17/2022] [Accepted: 08/26/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction: Due to its aggressiveness, cutaneous melanoma (CM) is responsible for most skin cancer-related deaths worldwide. The origin of CM is closely linked to the appearance of UV-induced somatic mutations in melanocytes present in normal skin or in CM precursor lesions (nevi or dysplastic nevi). In recent years, new NGS studies performed on CM tissue have increased the understanding of the genetic somatic changes underlying melanomagenesis and CM tumor progression. Methods: We reviewed the literature using all important scientific databases. All articles related to genomic mutations in CM as well as normal skin and nevi were included, in particular those related to somatic mutations produced by UV radiation. Conclusions: CM development and progression are strongly associated with exposure to UV radiation, although each melanoma subtype has different characteristic genetic alterations and evolutionary trajectories. While BRAF and NRAS mutations are common in the early stages of tumor development for most CM subtypes, changes in CDKN2A, TP53 and PTEN, together with TERT promoter mutations, are especially common in advanced stages. Additionally, large genome duplications, loss of heterozygosity, and copy number variations are hallmarks of metastatic disease. Finally, the mutations driving melanoma targeted-therapy drug resistance are also summarized. The complete sequential stages of clonal evolution leading to CM onset from normal skin or nevi are still unknown, so further studies are needed in this field to shed light on the molecular pathways involved in CM malignant transformation and in melanoma acquired drug resistance.
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Affiliation(s)
- Alba Loras
- Department of Medicine, University of Valencia, 46010 Valencia, Spain
- Department of Medicine, Jaume I University of Castellon, 12071 Castellon, Spain
| | | | | | - Gemma Perez-Pastor
- Department of Dermatology, Valencia General University Hospital, 46014 Valencia, Spain
| | - Conrado Martinez-Cadenas
- Department of Medicine, Jaume I University of Castellon, 12071 Castellon, Spain
- Correspondence: ; Tel.: +34-964387607
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Sgouros D, Lallas A, Kittler H, Zarras A, Kyrgidis A, Papageorgiou C, Puig S, Scope A, Argenziano G, Zalaudek I, Pizzichetta MA, Marghoob A, Liopyris K, Malvehy J, Oikonomou C, Flórez A, Braun R, Cabo H, Nazzaro G, Lanssens S, Menzies S, Paoli J, Kaminska-Winciorek G, Longo C, Katoulis A, Apalla Z, Ioannides D, Thomas L, Tromme I, Ogata D, Desinioti C, Geller A, Stratigos A. Dermatoscopic features of thin (≤2 mm Breslow thickness) vs. thick (>2 mm Breslow thickness) nodular melanoma and predictors of nodular melanoma versus nodular non-melanoma tumours: a multicentric collaborative study by the International Dermoscopy Society. J Eur Acad Dermatol Venereol 2020; 34:2541-2547. [PMID: 32654237 DOI: 10.1111/jdv.16815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/02/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Thin nodular melanoma (NM) often lacks conspicuous melanoma-specific dermatoscopic criteria and escapes clinical detection until it progresses to a thicker and more advanced tumour. OBJECTIVE To investigate the dermatoscopic morphology of thin (≤2 mm Breslow thickness) vs. thick (>2 mm) NM and to identify dermatoscopic predictors of its differential diagnosis from other nodular tumours. METHODS Retrospective, morphological case-control study, conducted on behalf of the International Dermoscopy Society. Dermatoscopic images of NM and other nodular tumours from 19 skin cancer centres worldwide were collected and analysed. RESULTS Overall, 254 tumours were collected (69 NM of Breslow thickness ≤2 mm, 96 NM >2 mm and 89 non-melanoma nodular lesions). Light brown coloration (50.7%) and irregular brown dots/globules (42.0%) were most frequently observed in ≤2 mm NMs. Multivariate analysis revealed that dotted vessels (3.4-fold), white shiny streaks (2.9-fold) and irregular blue structureless area (2.4-fold) were predictors for thinner NM compared to non-melanoma nodular tumours. Overall, irregular blue structureless area (3.4-fold), dotted vessels (4.6-fold) and serpentine vessels (1.9-fold) were predictors of all NM compared to non-melanoma nodular lesions. LIMITATIONS Absence of a centralized, consensus pathology review and cases selected form tertiary centres maybe not reflecting the broader community. CONCLUSIONS Our study sheds light into the dermatoscopic morphology of thin NM in comparison to thicker NM and could provide useful clues for its differential diagnosis from other non-melanoma nodular tumours.
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Affiliation(s)
- D Sgouros
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - A Lallas
- 1st Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | - H Kittler
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - A Zarras
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - A Kyrgidis
- Department of Clinical Pharmacology, Aristotle University, Thessaloniki, Greece
| | - C Papageorgiou
- 1st Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | - S Puig
- Melanoma Unit, Dermatology Department, Hospital Clinic Barcelona, Universitat de Barcelona IDIBAPS, Barcelona, Spain.,CIBER de Enfermedades Raras, Instituto de Salut de Carlos III, Barcelona, Spain
| | - A Scope
- Medical Screening Institute, Sheba Medical Center and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - G Argenziano
- Dermatology Unit, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - I Zalaudek
- Department of Dermatology, University of Trieste, Trieste, Italy
| | - M A Pizzichetta
- Department of Dermatology, University of Trieste, Trieste, Italy.,Division of Medical Oncology - Preventive Oncology, National Cancer Institute, Aviano, Italy
| | - A Marghoob
- Memorial Sloan Kettering Cancer Center, Hauppauge, NY, USA
| | - K Liopyris
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece.,Memorial Sloan Kettering Cancer Center, Hauppauge, NY, USA
| | - J Malvehy
- Melanoma Unit, Dermatology Department, Hospital Clinic Barcelona, Universitat de Barcelona IDIBAPS, Barcelona, Spain.,CIBER de Enfermedades Raras, Instituto de Salut de Carlos III, Barcelona, Spain
| | - C Oikonomou
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - A Flórez
- Department of Dermatology, Pontevedra University Hospital, Pontevedra, Spain
| | - R Braun
- Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - H Cabo
- Dermatology Institute of Medical Reserch, University of Buenos Aires, Buenos Aires, Argentina
| | - G Nazzaro
- Dermatology Unit, Fondazione I.R.C.C.S. Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - S Lanssens
- Private practice Dermatology Maldegem, Maldegem, Belgium
| | - S Menzies
- Discipline of Dermatology, Sydney Medical School, The University of Sydney and Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - J Paoli
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Region Västra Götaland, Department of Dermatology and Venereology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - G Kaminska-Winciorek
- Department of Bone Marrow Transplantation and Onco-Hematology, Maria Skłodowska-Curie National Research Institute of Oncology (MSCNRIO), Gliwice Branch, Gliwice, Poland
| | - C Longo
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy.,Centro Oncologico ad Alta Tecnologia Diagnostica, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - A Katoulis
- 2nd Department of Dermatology-Venereology, "Attikon" General University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Z Apalla
- State Clinic of Dermatology, Hospital for Skin and Venereal Diseases, Thessaloniki, Greece
| | - D Ioannides
- 1st Department of Dermatology, Aristotle University, Thessaloniki, Greece
| | - L Thomas
- Department of Dermatology, Lyon University, Lyon, France
| | - I Tromme
- Department of Dermatology, King Albert II Institute, Cliniques Universitaires Saint Luc, Brussels, Belgium
| | - D Ogata
- Department of Dermatology, Saitama Medical University, Saitama, Japan
| | - C Desinioti
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
| | - A Geller
- Department of Social and Behavioral Sciences, Harvard TH School of Public Health, Boston, MA, USA
| | - A Stratigos
- 1st Department of Dermatology-Venereology, Andreas Sygros Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
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Verzi AE, Quan VL, Walton KE, Martini MC, Marghoob AA, Garfield EM, Kong BY, Isales MC, VandenBoom T, Zhang B, West DP, Gerami P. The diagnostic value and histologic correlate of distinct patterns of shiny white streaks for the diagnosis of melanoma: A retrospective, case-control study. J Am Acad Dermatol 2017; 78:913-919. [PMID: 29138058 DOI: 10.1016/j.jaad.2017.11.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/24/2017] [Accepted: 11/02/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Shiny white streaks (SWSs) are best visualized with polarized dermoscopy and correlate with dermal fibroplasia histopathologically. SWSs have been described at higher frequencies in melanomas than in benign nevi. OBJECTIVE We assessed the diagnostic value of different patterns of SWSs and their histologic correlate in melanocytic lesions. METHODS Polarized dermoscopic images of 1507 histopathologically diagnosed melanocytic neoplasms were analyzed for presence and pattern of SWSs. Histology was also reviewed for correlation. RESULTS Among 1507 melanocytic neoplasms, SWSs were observed in 31 of 144 melanomas (22%) and 22 of 1363 benign neoplasms (1.6%) (P < .001). The sensitivity and specificity of SWSs for melanoma were 22% and 98%, respectively. Diffuse SWSs exhibited the greatest diagnostic value for melanoma, with sensitivity of 11.8% and specificity of 99.5%. Focal central and peripheral SWSs were comparable in diagnostic significance. The presence of SWSs was highly uncommon in dysplastic nevi, whereas in certain benign subgroups of nevi such as Spitz nevi and atypical genital special site nevi, SWSs were not uncommon. Diffuse SWSs correlated with greater breadth of deep fibroplasia than focal SWSs (P = .009), and SWSs correlated with greater Breslow depth among melanomas (P = .007). LIMITATIONS This study was retrospective. CONCLUSION Polarized dermoscopy is a valuable diagnostic tool in the identification of SWSs, a feature that is highly specific for melanoma.
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Affiliation(s)
- Anna Eliza Verzi
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Victor L Quan
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Kara E Walton
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Mary C Martini
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Ashfaq A Marghoob
- Dermatology Service, Memorial Sloan Kettering Cancer Center, Hauppage, New York, New York
| | - Erin M Garfield
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Betty Y Kong
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Maria Cristina Isales
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Timothy VandenBoom
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Bin Zhang
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Dennis P West
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Pedram Gerami
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
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