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Cornejo KM, Goyal A, Valencia Guerrero A, Astudillo M, Dias-Santagata D, Johnson MM, Feldman AS, Hoang MP. Clinicopathological and Molecular Features of Penile Melanoma With a Proposed Staging System. Am J Surg Pathol 2024; 48:825-833. [PMID: 38808927 DOI: 10.1097/pas.0000000000002247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Penile melanomas (PM) are an exceedingly rare subtype of mucosal melanoma (MM), and we reviewed the clinicopathologic features and molecular profile in 8 PMs. The patient ages ranged from 46 to 78 (mean: 62.8) years with involvement on the glans (n=5; 62.5%), penile urethra (n=2; 25%), and foreskin (n=1, 12.5%). Tumor depth ranged from 1.6 to 10.0 (mean: 5.25) mm. Most of the patients underwent partial penectomy (n=6; 75%) and sentinel lymph node (LN) biopsy N=7; 87.5%). Seven patients had metastatic disease at diagnosis, 6 involving LNs and 1 the adrenal gland, and 4 died of disease with a mean follow-up period of 40.5 (2 to 95) months. Five of 7 (71%) cases identified 15 molecular alterations within KIT , CDKN2A , NF1 , PTEN , and APC (n=2 each), and NRAS , MAP3K1 , CDH1 , MSH6 , and TERT (n=1 each). Two cases were not found to harbor genetic aberrations, and 1 case failed testing. In addition, we reviewed the English literature and included 93 cases with a reported depth of invasion and follow-up. A total of 101 PMs were analyzed for prognostic parameters, and the overall survival was significantly worse in patients with LN metastasis (P=0.0008), distant metastasis (P=0.0016), and greater depth of invasion (P=0.0222) based upon T-stage. While T4 conferred substantially worse survival, the delineation of the survival curves between T2 and T3 was less clear, and combining T2+T3 disease had a strong prognostic impact ( P =0.0024). Prognostic parameters used in the staging of cutaneous melanomas may also be used in PMs. An alternative staging system expanding the inclusion criteria for T2 might provide a more accurate prognostic stratification.
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Affiliation(s)
- Kristine M Cornejo
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Amrita Goyal
- Department of Dermatology, University of Minnesota, Minneapolis, MN
| | | | | | - Dora Dias-Santagata
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | | | - Adam S Feldman
- Department of Urology, Massachusetts General Hospital, Boston, MA
| | - Mai P Hoang
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
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2
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Babu S, Chen J, Robitschek E, Baron CS, McConnell A, Wu C, Dedeilia A, Sade-Feldman M, Modhurima R, Manos MP, Chen KY, Cox AM, Ludwig CG, Yang J, Kellis M, Buchbinder EI, Hacohen N, Boland GM, Abraham BJ, Liu D, Zon LI, Insco ML. Specific oncogene activation of the cell of origin in mucosal melanoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.22.590595. [PMID: 38712250 PMCID: PMC11071392 DOI: 10.1101/2024.04.22.590595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Mucosal melanoma (MM) is a deadly cancer derived from mucosal melanocytes. To test the consequences of MM genetics, we developed a zebrafish model in which all melanocytes experienced CCND1 expression and loss of PTEN and TP53. Surprisingly, melanoma only developed from melanocytes lining internal organs, analogous to the location of patient MM. We found that zebrafish MMs had a unique chromatin landscape from cutaneous melanoma. Internal melanocytes could be labeled using a MM-specific transcriptional enhancer. Normal zebrafish internal melanocytes shared a gene expression signature with MMs. Patient and zebrafish MMs have increased migratory neural crest gene and decreased antigen presentation gene expression, consistent with the increased metastatic behavior and decreased immunotherapy sensitivity of MM. Our work suggests the cell state of the originating melanocyte influences the behavior of derived melanomas. Our animal model phenotypically and transcriptionally mimics patient tumors, allowing this model to be used for MM therapeutic discovery.
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Zhang J, Tian H, Mao L, Si L. Treatment of acral and mucosal melanoma: Current and emerging targeted therapies. Crit Rev Oncol Hematol 2024; 193:104221. [PMID: 38036156 DOI: 10.1016/j.critrevonc.2023.104221] [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: 04/05/2023] [Revised: 10/14/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023] Open
Abstract
Targeted therapies revolutionized the management of patients with advanced and metastatic cutaneous melanoma. However, despite recent advances in the understanding of the molecular drivers of melanoma and its treatment with targeted therapies, patients with rare and aggressive melanoma subtypes, including acral melanoma (AM) and mucosal melanomas (MM), show limited long-term clinical benefit from current targeted therapies. While patients with AM or MM and BRAF or KIT mutations may benefit from targeted therapies, the frequency of these mutations is relatively low, and there are no genotype-specific treatments for most patients with AM or MM who lack common driver mutations. The poor prognosis of AM and MM can also be attributed to the lack of understanding of their unique molecular landscapes and clinical characteristics, due to being under-represented in preclinical and clinical studies. We review current knowledge of the molecular landscapes of AM and MM, focusing on actionable therapeutic targets and pathways for molecular targeted therapies, to guide the development of more effective targeted therapies for these cancers. Current and emerging strategies for the treatment of these melanoma subtypes using targeted therapies are also summarized.
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Affiliation(s)
- Jiaran Zhang
- Department of Melanoma and Sarcoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing, China
| | - Huichun Tian
- Department of Melanoma and Sarcoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing, China
| | - Lili Mao
- Department of Melanoma and Sarcoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing, China.
| | - Lu Si
- Department of Melanoma and Sarcoma, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing, China.
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4
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Castro-Pérez E, Singh M, Sadangi S, Mela-Sánchez C, Setaluri V. Connecting the dots: Melanoma cell of origin, tumor cell plasticity, trans-differentiation, and drug resistance. Pigment Cell Melanoma Res 2023; 36:330-347. [PMID: 37132530 PMCID: PMC10524512 DOI: 10.1111/pcmr.13092] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/17/2023] [Accepted: 04/17/2023] [Indexed: 05/04/2023]
Abstract
Melanoma, a lethal malignancy that arises from melanocytes, exhibits a multiplicity of clinico-pathologically distinct subtypes in sun-exposed and non-sun-exposed areas. Melanocytes are derived from multipotent neural crest cells and are present in diverse anatomical locations, including skin, eyes, and various mucosal membranes. Tissue-resident melanocyte stem cells and melanocyte precursors contribute to melanocyte renewal. Elegant studies using mouse genetic models have shown that melanoma can arise from either melanocyte stem cells or differentiated pigment-producing melanocytes depending on a combination of tissue and anatomical site of origin and activation of oncogenic mutations (or overexpression) and/or the repression in expression or inactivating mutations in tumor suppressors. This variation raises the possibility that different subtypes of human melanomas (even subsets within each subtype) may also be a manifestation of malignancies of distinct cells of origin. Melanoma is known to exhibit phenotypic plasticity and trans-differentiation (defined as a tendency to differentiate into cell lineages other than the original lineage from which the tumor arose) along vascular and neural lineages. Additionally, stem cell-like properties such as pseudo-epithelial-to-mesenchymal (EMT-like) transition and expression of stem cell-related genes have also been associated with the development of melanoma drug resistance. Recent studies that employed reprogramming melanoma cells to induced pluripotent stem cells have uncovered potential relationships between melanoma plasticity, trans-differentiation, and drug resistance and implications for cell or origin of human cutaneous melanoma. This review provides a comprehensive summary of the current state of knowledge on melanoma cell of origin and the relationship between tumor cell plasticity and drug resistance.
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Affiliation(s)
- Edgardo Castro-Pérez
- Center for Cellular and Molecular Biology of Diseases, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT-AIP), City of Knowledge, Panama City, Panama
- Department of Genetics and Molecular Biology, University of Panama, Panama City, Panama
| | - Mithalesh Singh
- Department of Dermatology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, U.S.A
| | - Shreyans Sadangi
- Department of Dermatology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, U.S.A
| | - Carmen Mela-Sánchez
- Department of Genetics and Molecular Biology, University of Panama, Panama City, Panama
| | - Vijayasaradhi Setaluri
- Department of Dermatology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, U.S.A
- William S. Middleton VA Hospital, Madison, WI, U.S.A
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5
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Simon J, Perez-Rivas LG, Zhao Y, Chasseloup F, Lasolle H, Cortet C, Descotes F, Villa C, Baussart B, Burman P, Maiter D, von Selzam V, Rotermund R, Flitsch J, Thorsteinsdottir J, Jouanneau E, Buchfelder M, Chanson P, Raverot G, Theodoropoulou M. Prevalence and clinical correlations of SF3B1 variants in lactotroph tumours. Eur J Endocrinol 2023; 189:372-378. [PMID: 37721395 DOI: 10.1093/ejendo/lvad114] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/30/2023] [Accepted: 07/24/2023] [Indexed: 09/19/2023]
Abstract
OBJECTIVE A somatic mutational hotspot in the SF3B1 gene was reported in lactotroph tumours. The aim of our study was to examine the prevalence of driver SF3B1 variants in a multicentre independent cohort of patients with lactotroph tumours and correlate with clinical data. DESIGN AND METHODS This was a retrospective, multicentre study involving 282 patients with lactotroph tumours (including 6 metastatic lactotroph tumours) from 8 European centres. We screened SF3B1 exon 14 hotspot for somatic variants using Sanger sequencing and correlated with clinicopathological data. RESULTS We detected SF3B1 variants in seven patients with lactotroph tumours: c.1874G > A (p.Arg625His) (n = 4, 3 of which metastatic) and a previously undescribed in pituitary tumours variant c.1873C > T (p.Arg625Cys) (n = 3 aggressive pituitary tumours). In two metastatic lactotroph tumours with tissue available, the variant was detected in both primary tumour and metastasis. The overall prevalence of likely pathogenic SF3B1 variants in lactotroph tumours was 2.5%, but when we considered only metastatic cases, it reached the 50%. SF3B1 variants correlated with significantly larger tumour size; higher Ki67 proliferation index; multiple treatments, including radiotherapy and chemotherapy; increased disease-specific death; and shorter postoperative survival. CONCLUSIONS SF3B1 variants are uncommon in lactotroph tumours but may be frequent in metastatic lactotroph tumours. When present, they associate with aggressive tumour behaviour and worse clinical outcome.
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Affiliation(s)
- Julia Simon
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, LMU München, Munich 80336, Germany
| | | | - Yining Zhao
- Department of Neurosurgery, University of Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Fanny Chasseloup
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, Le Kremlin-Bicêtre 94275, France
| | - Helene Lasolle
- Endocrinology Department, Reference Center for Rare Pituitary Diseases HYPO, Claude Bernard Lyon 1 University, "Groupement Hospitalier Est" Hospices Civils de Lyon, Bron 69500, France
| | | | - Francoise Descotes
- Service de Biochimie Biologie Moléculaire, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Pierre Bénite Cedex 69495, France
| | - Chiara Villa
- Neuropathology Department, Pitié-Salpêtrière University Hospital, AP-HP, Sorbonne Université and Université Paris Cité, CNRS UMR8104, INSERM U1016, Institut Cochin, Paris 75014, France
| | - Bertrand Baussart
- Department of Neurosurgery, Assistance Publique-Hopitaux de Paris, Pitié-Salpetrière University Hospital and Université Paris Cité, CNRS UMR8104, INSERM U1016, Institut Cochin, Paris 75014, France
| | - Pia Burman
- Department of Endocrinology, Skåne University Hospital, Lund University, Malmö 214 28, Sweden
| | - Dominique Maiter
- Department of Endocrinology and Nutrition, UCLouvain Cliniques Universitaires Saint-Luc, Bruxelles 1200, Belgium
| | - Vivian von Selzam
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, LMU München, Munich 80336, Germany
| | - Roman Rotermund
- Department of Neurosurgery, Division of Pituitary Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Jörg Flitsch
- Department of Neurosurgery, Division of Pituitary Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20251, Germany
| | - Jun Thorsteinsdottir
- Neurochirurgische Klinik und Poliklinik, LMU Klinikum, LMU München, Munich 81377, Germany
| | - Emmanuel Jouanneau
- Pituitary and Skull Base Neurosurgical Department, Reference Center for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est" Hospices Civils de Lyon, "Claude Bernard" Lyon 1 University, Hôpital Pierre Wertheimer, Lyon, Bron 69677, France
| | - Michael Buchfelder
- Department of Neurosurgery, University of Erlangen-Nürnberg, Erlangen 91054, Germany
| | - Philippe Chanson
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, Le Kremlin-Bicêtre 94275, France
| | - Gerald Raverot
- Endocrinology Department, Reference Center for Rare Pituitary Diseases HYPO, Claude Bernard Lyon 1 University, "Groupement Hospitalier Est" Hospices Civils de Lyon, Bron 69500, France
| | - Marily Theodoropoulou
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, LMU München, Munich 80336, Germany
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Chang E, Demirci H, Demirci FY. Genetic Aspects of Conjunctival Melanoma: A Review. Genes (Basel) 2023; 14:1668. [PMID: 37761808 PMCID: PMC10530751 DOI: 10.3390/genes14091668] [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: 07/23/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Conjunctival melanoma (CM) is a rare but aggressive cancer. Over the past decade, molecular studies using rapidly advancing technologies have increasingly improved our understanding of CM genetics. CMs are mainly characterized by dysregulated MAPK and PI3K/AKT/mTOR pathways, driven by commonly mutated (BRAF, NRAS, NF1) or less commonly mutated (KIT, PTEN) genes. Another group of genes frequently mutated in CMs include TERT and ATRX, with known roles in telomere maintenance and chromatin remodeling/epigenetic regulation. Uveal melanoma-related genes (BAP1, SF3B1, GNAQ/11) can also be mutated in CMs, albeit infrequently. Additional CM-related mutated genes have increasingly been identified using more comprehensive genetic analyses, awaiting further confirmation in additional/larger studies. As a tumor arising in a partly sun-exposed mucosal tissue, CM exhibits a distinct genomic profile, including the frequent presence of an ultraviolet (UV) signature (and high mutational load) and also the common occurrence of large structural variations (distributed across the genome) in addition to specific gene mutations. The knowledge gained from CM genetic studies to date has led to new therapeutic avenues, including the use of targeted and/or immuno-therapies with promising outcomes in several cases. Accordingly, the implementation of tumor genetic testing into the routine clinical care of CM patients holds promise to further improve and personalize their treatments. Likewise, a growing knowledge of poor prognosis-associated genetic changes in CMs (NRAS, TERT, and uveal melanoma signature mutations and chromosome 10q deletions) may ultimately guide future strategies for prognostic testing to further improve clinical outcomes (by tailoring surveillance and considering prophylactic treatments in patients with high-risk primary tumors).
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Affiliation(s)
- Emily Chang
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Hakan Demirci
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - F. Yesim Demirci
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
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7
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Ogata D, Nishio S, Hatta N, Kaji T, Fujii K, Mikami M, Kiyohara Y, Enomoto T. Clinicopathological demographics of malignant melanomas of the vulva and vagina in Japan. Melanoma Res 2023; 33:300-308. [PMID: 37162526 PMCID: PMC10309107 DOI: 10.1097/cmr.0000000000000894] [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: 02/01/2023] [Accepted: 03/25/2023] [Indexed: 05/11/2023]
Abstract
Malignant vulvar melanoma (VuM) and vaginal melanoma (VaM) represent a unique subgroup of rare malignant melanomas with critical biological properties that differ from other cancers. In Japan, adequate surveys have yet to be conducted. This study aimed to elucidate the clinicopathological demographics and outcomes of VuM and VaM in Japan. This retrospective observational study included women with invasive VuM or VaM identified from older medical records in Japan. We collected clinical data and used the Kaplan-Meier method to analyze progression-free survival (PFS) and overall survival (OS). Univariate and multivariate regression models were used to identify factors significantly related to survival. We identified 217 patients, 109 (50.2%) with VuM and 108 (49.8%) with VaM. The median PFS was 16.8 months in patients with VuM [95% confidence interval (CI), 23.1-87.7] and 15.6 months in those with VaM (95% CI, 8.4-12.6). The median OS was 43.9 months (95% CI, 60-138) and 31.1 months (95% CI, 24.8-45.3) in patients with VuM and VaM, respectively. Multivariate analysis showed that a disease stage higher than stage III, based on the American Joint Committee on Cancer (AJCC) guidelines, was associated with poorer PFS [hazard ratio (HR), 2.063; 95% CI, 0.995-4.278] and an unknown surgical margin was the only independent factor influencing OS (HR, 2.188; 95% CI, 1.203-3.977). The overall outcomes of invasive VuM and VaM in Japan remain poor. AJCC staging and surgical margins were significant predictors of survival.
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Affiliation(s)
- Dai Ogata
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo
| | - Shin Nishio
- Department of Obstetrics and Gynecology, Kurume University School of Medicine, Kurume, Fukuoka
| | - Naohito Hatta
- Department of Dermatology, Toyama Prefectural Central Hospital, Toyama
| | - Tatsuya Kaji
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kanagawa
| | - Kazuyasu Fujii
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima
| | - Mikio Mikami
- Department of Obstetrics and Gynecology, Tokai University Hospital, Kanagawa
| | | | - Takayuki Enomoto
- Department of Obstetrics and Gynecology, Niigata University School of Medicine, Niigata, Japan
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8
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Li X, Liu D, Wang Y, Chen Y, Wang C, Lin Z, Tian L. PHF5A as a new OncoTarget and therapeutic prospects. Heliyon 2023; 9:e18010. [PMID: 37483794 PMCID: PMC10362332 DOI: 10.1016/j.heliyon.2023.e18010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/24/2023] [Accepted: 07/05/2023] [Indexed: 07/25/2023] Open
Abstract
PHF5A (PHD-finger domain protein 5A) is a highly conserved protein comprised of 110 amino acids that belong to PHD zinc finger proteins and is ubiquitously expressed in entire eukaryotic nuclei from yeast to man. PHF5A is an essential component of the SF3B splicing complex regulating protein-protein or protein-DNA interactions; particularly involved in pre-mRNA splicing. Besides its basic spliceosome-associated attributes encompassing the regulation of alternative splicing of specific genes, PHF5A also plays a pivotal role in cell cycle regulation and morphological development of cells along with their differentiation into particular tissues/organs, DNA damage repair, maintenance of pluripotent embryonic stem cells (CSCs) embryogenesis and regulation of chromatin-mediated transcription. Presently identification of spliceosome and non-spliceosome-associated attributes of PHF5A needs great attention based on its key involvement in the pathogenesis of cancer malignancies including the prognosis of lung adenocarcinoma, endometrial adenocarcinoma, breast, and colorectal cancer. PHF5A is an essential splicing factor or cofactor actively participating as an oncogenic protein in tumorigenesis via activation of downstream signaling pathway attributed to its regulation of dysregulated splicing or abnormal alternative splicing of targeted genes. Further, the participation of PHF5A in regulating the growth of cancer stem cells might not be ignored. The current review briefly overviews the structural and functional attributes of PHF5A along with its hitherto described role in the propagation of cancer malignancies and its future concern as a potential therapeutic target for cancer management/treatment.
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Affiliation(s)
- Xiaojiang Li
- Department of Orthopedics, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, 130000, China
| | - Dalong Liu
- Department of Orthopedics, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, 130000, China
| | - Yun Wang
- Department of Thoracic Surgery, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, 130000, China
| | - Yu Chen
- Department of Orthopedics, LiaoYuanCity TCM Hospital, LiaoYuan, 136200, China
| | - Chenyang Wang
- Department of Orthopedics, LiaoYuanCity TCM Hospital, LiaoYuan, 136200, China
| | - Zhicheng Lin
- Department of Internal Medicine, Baishan Hospital of Traditional Chinese Medicine, Baishan, 134300, China
| | - Lin Tian
- Department of Lung Oncology, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, 130000, China
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9
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Chłopek M, Lasota J, Thompson LDR, Szczepaniak M, Kuźniacka A, Hińcza K, Kubicka K, Kaczorowski M, Newford M, Liu Y, Agaimy A, Biernat W, Durzyńska M, Dziuba I, Hartmann A, Inaguma S, Iżycka-Świeszewska E, Kato H, Kopczyński J, Michal M, Michal M, Pęksa R, Prochorec-Sobieszek M, Starzyńska A, Takahashi S, Wasąg B, Kowalik A, Miettinen M. Alterations in key signaling pathways in sinonasal tract melanoma. A molecular genetics and immunohistochemical study of 90 cases and comprehensive review of the literature. Mod Pathol 2022; 35:1609-1617. [PMID: 35978013 DOI: 10.1038/s41379-022-01122-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 11/09/2022]
Abstract
Sinonasal mucosal melanoma is a rare tumor arising within the nasal cavity, paranasal sinuses, or nasopharynx (sinonasal tract). This study evaluated 90 cases diagnosed in 29 males and 61 females with median age 68 years. Most tumors involved the nasal cavity and had an epithelioid morphology. Spectrum of research techniques used in this analysis includes targeted-DNA and -RNA next-generation sequencing, Sanger sequencing, fluorescence in situ hybridization and immunohistochemistry. Sinonasal melanomas were commonly driven by RAS (38/90, 42%), especially NRAS (n = 36) mutations and rarely (4/90, 4%) displayed BRAF pathogenic variants. BRAF/RAS mutants were more frequent among paranasal sinuses (10/14, 71%) than nasal (26/64, 41%) tumors. BRAF/RAS-wild type tumors occasionally harbored alterations of the key components and regulators of Ras-MAPK signaling pathway: NF1 mutations (1/17, 6%) or NF1 locus deletions (1/25, 4%), SPRED1 (3/25, 12%), PIK3CA (3/50, 6%), PTEN (4/50, 8%) and mTOR (1/50, 2%) mutations. These mutations often occurred in a mutually exclusive manner. In several tumors some of which were NRAS mutants, TP53 was deleted (6/48, 13%) and/or mutated (5/90, 6%). Variable nuclear accumulation of TP53, mirrored by elevated nuclear MDM2 expression was seen in >50% of cases. Furthermore, sinonasal melanomas (n = 7) including RAS/BRAF-wild type tumors (n = 5) harbored alterations of the key components and regulators of canonical WNT-pathway: APC (4/90, 4%), CTNNB1 (3/90, 3%) and AMER1 (1/90, 1%). Both, TERT promoter mutations (5/53, 9%) and fusions (2/40, 5%) were identified. The latter occurred in BRAF/RAS-wild type tumors. No oncogenic fusion gene transcripts previously reported in cutaneous melanomas were detected. Eight tumors including 7 BRAF/RAS-wild type cases expressed ADCK4::NUMBL cis-fusion transcripts. In summary, this study documented mutational activation of NRAS and other key components and regulators of Ras-MAPK signaling pathway such as SPRED1 in a majority of sinonasal melanomas.
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Affiliation(s)
- Małgorzata Chłopek
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA.,Molecular Diagnostics, Holycross Cancer Center, Kielce, Poland
| | - Jerzy Lasota
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA.
| | | | | | - Alina Kuźniacka
- Department of Biology and Genetics, Medical University of Gdańsk, Gdańsk, Poland
| | - Kinga Hińcza
- Molecular Diagnostics, Holycross Cancer Center, Kielce, Poland
| | - Kamila Kubicka
- Molecular Diagnostics, Holycross Cancer Center, Kielce, Poland
| | - Maciej Kaczorowski
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA.,Department of Clinical and Experimental Pathology, Wrocław Medical University, Wrocław, Poland
| | - Michael Newford
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA
| | - Yalan Liu
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA
| | - Abbas Agaimy
- Institute of Pathology, University Hospital of Erlangen, Erlangen, Germany
| | - Wojciech Biernat
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Monika Durzyńska
- Department of Pathology, The Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Ireneusz Dziuba
- Faculty of Medicine, University of Technology, Katowice, Poland
| | - Arndt Hartmann
- Institute of Pathology, University Hospital of Erlangen, Erlangen, Germany
| | - Shingo Inaguma
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Ewa Iżycka-Świeszewska
- Department of Pathology and Neuropathology, Medical University of Gdańsk, Gdańsk, Poland
| | - Hiroyuki Kato
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Janusz Kopczyński
- Department of Surgical Pathology, Holycross Cancer Center, Kielce, Poland
| | - Michal Michal
- Sikl's Department of Pathology, University Hospital, Charles University in Prague, Medical Faculty in Plzeň, Plzeň, Czech Republic
| | - Michael Michal
- Sikl's Department of Pathology, University Hospital, Charles University in Prague, Medical Faculty in Plzeň, Plzeň, Czech Republic
| | - Rafał Pęksa
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Monika Prochorec-Sobieszek
- Department of Pathology, The Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Anna Starzyńska
- Department of Oral Surgery, Medical University of Gdańsk, Gdańsk, Poland
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Mizuho-cho, Mizuho-ku, Nagoya, Japan
| | - Bartosz Wasąg
- Department of Biology and Genetics, Medical University of Gdańsk, Gdańsk, Poland
| | - Artur Kowalik
- Molecular Diagnostics, Holycross Cancer Center, Kielce, Poland.,Division of Medical Biology, Institute of Biology Jan Kochanowski University, Kielce, Poland
| | - Markku Miettinen
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, USA
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10
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Lorenz A, Kozłowski M, Lenkiewicz S, Kwiatkowski S, Cymbaluk-Płoska A. Cutaneous Melanoma versus Vulvovaginal Melanoma-Risk Factors, Pathogenesis and Comparison of Immunotherapy Efficacy. Cancers (Basel) 2022; 14:5123. [PMID: 36291906 PMCID: PMC9600893 DOI: 10.3390/cancers14205123] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 12/01/2022] Open
Abstract
Cutaneous melanoma is a relatively common neoplasm, with fairly well understood pathogenesis, risk factors, prognosis and therapeutic protocols. The incidence of this disease is increasing every year. The situation is different for rare malignancies such as vulvar melanomas and for the even rarer vaginal melanomas. The risk factors for vulvovaginal tumors are not fully understood. The basis of treatment in both cases is surgical resection; however, other types of treatments such as immunotherapy are available. This paper focuses on comparing the pathogenesis and risk factors associated with these neoplasms as well as the efficacy of two groups of drugs-anti-PD-L1 and anti-CTLA4 inhibitors-against both cutaneous melanoma and melanoma of the lower genital tract (vulva and vagina). In the case of cutaneous melanoma, the situation looks more optimistic than for vulvovaginal melanoma, which has a much worse prognosis and, as it turns out, shows a poorer response to immune therapy.
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Affiliation(s)
- Anna Lorenz
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Mateusz Kozłowski
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Sebastian Lenkiewicz
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Aneta Cymbaluk-Płoska
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University in Szczecin, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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11
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Shteinman ER, Wilmott JS, da Silva IP, Long GV, Scolyer RA, Vergara IA. Causes, consequences and clinical significance of aneuploidy across melanoma subtypes. Front Oncol 2022; 12:988691. [PMID: 36276131 PMCID: PMC9582607 DOI: 10.3389/fonc.2022.988691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Aneuploidy, the state of the cell in which the number of whole chromosomes or chromosome arms becomes imbalanced, has been recognized as playing a pivotal role in tumor evolution for over 100 years. In melanoma, the extent of aneuploidy, as well as the chromosomal regions that are affected differ across subtypes, indicative of distinct drivers of disease. Multiple studies have suggested a role for aneuploidy in diagnosis and prognosis of melanomas, as well as in the context of immunotherapy response. A number of key constituents of the cell cycle have been implicated in aneuploidy acquisition in melanoma, including several driver mutations. Here, we review the state of the art on aneuploidy in different melanoma subtypes, discuss the potential drivers, mechanisms underlying aneuploidy acquisition as well as its value in patient diagnosis, prognosis and response to immunotherapy treatment.
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Affiliation(s)
- Eva R. Shteinman
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - James S. Wilmott
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Ines Pires da Silva
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Cancer & Hematology Centre, Blacktown Hospital, Blacktown, NSW, Australia
| | - Georgina V. Long
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Department of Medical Oncology, Royal North Shore and Mater Hospitals, Sydney, NSW, Australia
| | - Richard A. Scolyer
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital and New South Wales (NSW) Health Pathology, Sydney, NSW, Australia
| | - Ismael A. Vergara
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- *Correspondence: Ismael A. Vergara,
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12
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Zhang F, Chen L. Molecular Threat of Splicing Factor Mutations to Myeloid Malignancies and Potential Therapeutic Modulations. Biomedicines 2022; 10:biomedicines10081972. [PMID: 36009519 PMCID: PMC9405558 DOI: 10.3390/biomedicines10081972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 11/21/2022] Open
Abstract
Splicing factors are frequently mutated in myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML). These mutations are presumed to contribute to oncogenic transformation, but the underlying mechanisms remain incompletely understood. While no specific treatment option is available for MDS/AML patients with spliceosome mutations, novel targeting strategies are actively explored, leading to clinical trials of small molecule inhibitors that target the spliceosome, DNA damage response pathway, and immune response pathway. Here, we review recent progress in mechanistic understanding of splicing factor mutations promoting disease progression and summarize potential therapeutic strategies, which, if successful, would provide clinical benefit to patients carrying splicing factor mutations.
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13
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Tang L, Wei X, Li C, Dai J, Bai X, Mao L, Chi Z, Cui C, Lian B, Tang B, Du Y, Wang X, Lai Y, Sheng X, Yan X, Li S, Zhou L, Kong Y, Li Z, Si L, Guo J. Proliferation Marker Ki67 as a Stratification Index of Adjuvant Chemotherapy for Resectable Mucosal Melanoma. Front Oncol 2022; 12:895672. [PMID: 35847851 PMCID: PMC9280123 DOI: 10.3389/fonc.2022.895672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 06/09/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAdjuvant chemotherapy has been shown to produce a favorable prognosis for patients with resectable mucosal melanoma (MM), resulting in the need for stratification to optimally select patients to benefit from adjuvant therapy. This study analyzed Ki67 as a potential stratification index for adjuvant chemotherapy in resectable MM.MethodsPatients with resected MM who received subsequent adjuvant therapy in Beijing Cancer Hospital between 2010 and 2018 were retrospectively enrolled and analyzed. Relapse-free survival (RFS) and melanoma-specific survival (MSS) curves were used to perform the survival comparisons across different subgroups.ResultsFrom Jan 2010 to Dec 2018, 1106 MM patients were screened from a database of 4706 patients and 175 of these patients were finally enrolled. A total of 100 patients received temozolomide (TMZ)-based adjuvant chemotherapy and 75 patients received high-dose interferon-α2b (HDI) adjuvant therapy. Compared with HDI, patients who received TMZ-based adjuvant chemotherapy had significantly superior RFS (21.0 vs. 9.6 months, P = 0.002). For patients with low Ki67 expression (<30%), the two regimens showed no significant difference for impact on RFS (33.9 vs. 22.7 months, P = 0.329). However, for patients with high Ki67 expression (≥30%), TMZ-based adjuvant chemotherapy achieved favorable RFS compared with HDI (18.0 vs. 6.7 months, P < 0.001) and tended to improve MSS compared to HDI (41.4 vs. 25.1 months, P = 0.067).ConclusionCompared with HDI, adjuvant chemotherapy may be more relevant for patients with Ki67 ≥ 30%. Ki67 may serve as a potential index to distinguish populations benefiting from adjuvant chemotherapy in resectable MM, and may provide a basis for stratification in the selection of adjuvant regimens.
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Affiliation(s)
- Lirui Tang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xiaoting Wei
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Caili Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Jie Dai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xue Bai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Lili Mao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Zhihong Chi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Chuanliang Cui
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Bin Lian
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Bixia Tang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yu Du
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xuan Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yumei Lai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xinan Sheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Genitourinary Cancers, Peking University Cancer Hospital and Institute, Beijing, China
| | - Xieqiao Yan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Genitourinary Cancers, Peking University Cancer Hospital and Institute, Beijing, China
| | - Siming Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Genitourinary Cancers, Peking University Cancer Hospital and Institute, Beijing, China
| | - Li Zhou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Genitourinary Cancers, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yan Kong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
| | - Zhongwu Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, China
- *Correspondence: Jun Guo, ; Lu Si, ; Zhongwu Li,
| | - Lu Si
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
- *Correspondence: Jun Guo, ; Lu Si, ; Zhongwu Li,
| | - Jun Guo
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Melanoma and Sarcoma, Peking University Cancer Hospital and Institute, Beijing, China
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education, Beijing), Department of Genitourinary Cancers, Peking University Cancer Hospital and Institute, Beijing, China
- *Correspondence: Jun Guo, ; Lu Si, ; Zhongwu Li,
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14
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Mutational Characteristics of Primary Mucosal Melanoma: A Systematic Review. Mol Diagn Ther 2022; 26:189-202. [PMID: 35195858 DOI: 10.1007/s40291-021-00572-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Primary mucosal melanomas (PMMs) are rare and clinically heterogeneous, including head and neck (HNMs), vulvovaginal (VVMs), conjunctival (CjMs), anorectal (ARMs) and penile (PMs) melanomas. While the prognosis of advanced cutaneous melanoma has noticeably improved using treatments with immune checkpoint inhibitors (ICIs) and molecules targeting BRAF and MEK, few advances have been made for PMMs because of their poorer response to ICIs and their different genetic profile. This prompted us to conduct a systematic review of molecular studies of PMMs to clarify their pathogenesis and potential therapeutic targets. METHODS All articles that examined gene mutations in PMMs were identified from the databases and selected based on predefined inclusion criteria. Mutation rate was calculated for all PMMs and each location group by relating the number of mutations identified to the total number of samples analysed. RESULTS Among 1,581 studies identified, 88 were selected. Overall, the frequency of KIT, BRAF and NRAS mutation was 13.5%, 12.9% and 12.1%, respectively. KIT mutation ranged from 6.4% for CjMs to 16.6% for ARMs, BRAF mutation from 8.6% for ARMs to 31.1% for CjMs, and NRAS mutation from 6.2% for ARMs to 18.5% for CjMs. Among 101 other genes analysed, 33 had mutation rates over 10%, including TTN, TSC1, POM121, NF1, MTOR and SF3B1. CONCLUSION In addition to BRAF, NRAS and KIT genes commonly studied, our systematic review identified significantly mutated genes that have already been associated (e.g., TSC1, mTOR, POLE or ATRX) or could be associated with (future) targeted therapies. PROSPERO ID CRD42020185552.
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15
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Molecular mechanisms in governing genomic stability and tumor suppression by the SETD2 H3K36 methyltransferase. Int J Biochem Cell Biol 2022; 144:106155. [PMID: 34990836 DOI: 10.1016/j.biocel.2021.106155] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 01/15/2023]
Abstract
Epigenetic dysregulation is an important contributor to carcinogenesis. This is not surprising, as chromatin-genomic DNA organized around structural histone scaffolding-serves as the template on which occurs essential nuclear processes, such as transcription, DNA replication and DNA repair. Histone H3 lysine 36 (H3K36) methyltransferases, such as the SET-domain 2 protein (SETD2), have emerged as critical tumor suppressors. Previous work on mammalian SETD2 and its counterpart in model organisms, Set2, has highlighted the role of this protein in governing genomic stability through transcriptional elongation and splicing, as well as in DNA damage response processes and cell cycle progression. A compendium of SETD2 mutations have been documented, garnered from sequenced cancer patient genome data, and these findings underscore the cancer-driving properties of SETD2 loss-of-function. In this review, we consolidate the molecular mechanisms regulated by SETD2/Set2 and discuss evidence of its dysregulation in tumorigenesis. Insight into the genetic interactions that exist between SETD2 and various canonical intracellular signaling pathways has not only empowered pharmacological intervention by taking advantage of synthetic lethality but underscores SETD2 as a druggable target for precision cancer therapy.
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16
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Lally SE, Milman T, Orloff M, Dalvin LA, Eberhart CG, Heaphy CM, Rodriguez FJ, Lin CC, Dockery PW, Shields JA, Shields CL. Mutational Landscape and Outcomes of Conjunctival Melanoma in 101 Patients. Ophthalmology 2022; 129:679-693. [DOI: 10.1016/j.ophtha.2022.01.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 12/14/2022] Open
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17
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Millán-Esteban D, García-Casado Z, Manrique-Silva E, Virós A, Kumar R, Furney S, López-Guerrero JA, Requena C, Bañuls J, Traves V, Nagore E. Distribution and clinical role of KIT gene mutations in melanoma according to subtype: a study of 492 Spanish patients. Eur J Dermatol 2021; 31:830-838. [PMID: 33648909 PMCID: PMC7615026 DOI: 10.1684/ejd.2021.3971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND KIT mutations are primarily associated with acral and mucosal melanoma, and have been reported to show higher prevalence in chronic sun-damaged (CSD) than non-CSD melanomas. OBJECTIVES To investigate the prevalence of KIT mutations in melanoma according to subtype, and determine the clinical role of such mutations. MATERIALS & METHODS We present results from a study of a Spanish population of 492 melanomas, classified according to the latest World Health Organization (WHO) guidelines. We analysed the mutational status of KIT and correlated with different clinical variables related to sun exposure and family history. RESULTS KIT mutations were significantly more frequent in acral (3/36; 8.3%) and mucosal (4/8; 50%) melanomas than non-acral cutaneous melanomas. No significant difference was observed in KIT mutational status between CSD and non-CSD melanomas. CONCLUSION Our results suggest that KIT mutations in melanoma tumours are unrelated to the development of nevi or chronic sun damage, but their presence is associated with aggressive melanomas which show ulceration, vascular invasiveness, and increased Breslow thickness. These findings are consistent with those reported by The Cancer Genome Atlas network.
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Affiliation(s)
- David Millán-Esteban
- Laboratory of Molecular Biology. Fundación Instituto Valenciano de Oncología. València, Spain
| | - Zaida García-Casado
- Laboratory of Molecular Biology. Fundación Instituto Valenciano de Oncología. València, Spain
| | | | - Amaya Virós
- Laboratory of Skin Cancer and Aging. CRUK-Manchester Institute. University of Manchester. Manchester. UK
| | - Rajiv Kumar
- Division of Molecular Genetic Epidemiology, Division of Genomic Functional Analysis. DKFZ. Heidelberg, Germany
| | - Simon Furney
- Genomic Oncology Research Group, Centre for Systems Medicine, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Celia Requena
- Department of Dermatology. Fundación Instituto Valenciano de Oncología. València, Spain
| | - Jose Bañuls
- Department of Dermatology. Hospital General Universitario de Alicante. Alicante, Spain
| | - Víctor Traves
- Department of Pathology. Fundación Instituto Valenciano de Oncología. València, Spain
| | - Eduardo Nagore
- Department of Dermatology. Fundación Instituto Valenciano de Oncología. València, Spain
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18
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Cai YJ, Ke LF, Zhang WW, Lu JP, Chen YP. Recurrent KRAS, KIT and SF3B1 mutations in melanoma of the female genital tract. BMC Cancer 2021; 21:677. [PMID: 34102999 PMCID: PMC8185938 DOI: 10.1186/s12885-021-08427-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/25/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Malignant melanoma of the female genital tract is relatively uncommon and accounts for 3-7% of all melanoma localizations. This study aimed to identify driver genes in melanoma of the female genital tract with the purpose of enhancing understanding of disease pathogenesis and identifying potential new therapeutic targets to develop effective therapies. METHODS KIT (CD117) and BRAF expression were detected immunohistochemically. Polymerase Chain Reaction (PCR) and Sanger sequencing techniques were performed to identify the mutational status of BRAF, NRAS, KRAS, NF1, KIT, PDGFRA and SF3B1 on 19 melanomas of the female genital tract, paired with 25 cutaneous melanomas, 18 acral melanomas and 11 melanomas of nasal cavity. RESULTS Somatic variant analysis identified KRAS (6/19; 32%) as the most commonly mutated gene, followed by KIT (4/19; 21%), SF3B1 (3/19; 16%) and NRAS (1/19; 5%). None of the cases were found to harbor BRAF, NF1 and PDGFRA mutations in melanomas of the female genital tract. However, none of the cases were found to harbor SF3B1 and KIT mutations in cutaneous melanomas, acral melanomas and melanomas of nasal cavity. Recurrent KIT mutations, as well as mutations in the less frequently mutated genes NRAS and SF3B1, were exclusively detected in vulvovaginal melanomas, but not in tumors arising in the cervix. However, recurrent KRAS mutations were detected in similar frequencies in tumors of the vulva, vagina, and cervix. Additionally, recurrent KRAS and KIT mutations occurred predominantly in polygonal and epithelioid cell types of melanoma in the female genital tract. Immunohistochemistry revealed moderate or strong cytoplasmic CD117 expression in 6 of the 19 cases (31.6%). CONCLUSIONS We observed that gynecologic melanoma harbored distinct mutation rates in the KIT, BRAF, SF3B1, KRAS, and NRAS genes. Our findings support the notion that gynecologic melanoma is a distinct entity from non-gynecologic melanoma, and these findings offer insights into future therapeutic options for these patients.
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Affiliation(s)
- Yuan-Jun Cai
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, China
| | - Long-Feng Ke
- Laboratory of Molecular Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, 350014, China
| | - Wen-Wen Zhang
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China
| | - Jian-Ping Lu
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China
| | - Yan-Ping Chen
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China.
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19
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van Poppelen NM, van Ipenburg JA, van den Bosch Q, Vaarwater J, Brands T, Eussen B, Magielsen F, Dubbink HJ, Paridaens D, Brosens E, Naus N, de Klein A, Kiliç E, Verdijk RM. Molecular Genetics of Conjunctival Melanoma and Prognostic Value of TERT Promoter Mutation Analysis. Int J Mol Sci 2021; 22:ijms22115784. [PMID: 34071371 PMCID: PMC8198138 DOI: 10.3390/ijms22115784] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was exploration of the genetic background of conjunctival melanoma (CM) and correlation with recurrent and metastatic disease. Twenty-eight CM from the Rotterdam Ocular Melanoma Study group were collected and DNA was isolated from the formalin-fixed paraffin embedded tissue. Targeted next-generation sequencing was performed using a panel covering GNAQ, GNA11, EIF1AX, BAP1, BRAF, NRAS, c-KIT, PTEN, SF3B1, and TERT genes. Recurrences and metastasis were present in eight (29%) and nine (32%) CM cases, respectively. TERT promoter mutations were most common (54%), but BRAF (46%), NRAS (21%), BAP1 (18%), PTEN (14%), c-KIT (7%), and SF3B1 (4%) mutations were also observed. No mutations in GNAQ, GNA11, and EIF1AX were found. None of the mutations was significantly associated with recurrent disease. Presence of a TERT promoter mutation was associated with metastatic disease (p-value = 0.008). Based on our molecular findings, CM comprises a separate entity within melanoma, although there are overlapping molecular features with uveal melanoma, such as the presence of BAP1 and SF3B1 mutations. This warrants careful interpretation of molecular data, in the light of clinical findings. About three quarter of CM contain drug-targetable mutations, and TERT promoter mutations are correlated to metastatic disease in CM.
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Affiliation(s)
- Natasha M. van Poppelen
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Jolique A. van Ipenburg
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (J.A.v.I.); (Q.v.d.B.); (H.J.D.)
- Department of Pathology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - Quincy van den Bosch
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (J.A.v.I.); (Q.v.d.B.); (H.J.D.)
| | - Jolanda Vaarwater
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Tom Brands
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Bert Eussen
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Frank Magielsen
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Hendrikus J. Dubbink
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (J.A.v.I.); (Q.v.d.B.); (H.J.D.)
| | - Dion Paridaens
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
- Department of Ocular Oncology, The Rotterdam Eye Hospital, Schiedamse Vest 180, 3011 BH Rotterdam, The Netherlands
| | - Erwin Brosens
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Nicole Naus
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
| | - Annelies de Klein
- Department of Clinical Genetics, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (F.M.); (E.B.); (A.d.K.)
| | - Emine Kiliç
- Department of Ophthalmology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (J.V.); (T.B.); (B.E.); (D.P.); (N.N.); (E.K.)
| | - Robert M. Verdijk
- Department of Pathology, Section Ophthalmic Pathology, Erasmus MC University Medical Center, Doctor Molewaterplein 40, 3015 GD Rotterdam, The Netherlands; (J.A.v.I.); (Q.v.d.B.); (H.J.D.)
- Department of Ocular Oncology, The Rotterdam Eye Hospital, Schiedamse Vest 180, 3011 BH Rotterdam, The Netherlands
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands
- Correspondence:
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20
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Li H, Yang L, Lai Y, Wang X, Han X, Liu S, Wang D, Li X, Hu N, Kong Y, Si L, Li Z. Genetic alteration of Chinese patients with rectal mucosal melanoma. BMC Cancer 2021; 21:623. [PMID: 34044811 PMCID: PMC8161925 DOI: 10.1186/s12885-021-08383-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/13/2021] [Indexed: 12/23/2022] Open
Abstract
Background Rectal mucosal melanoma (RMM) is a rare and highly aggressive disease with a poor prognosis. Due to the rarity of RMM, there are few studies focusing on its genetic mechanism. This retrospective study aimed to analyze the genetic spectrum and prognosis of RMM in China and lay a foundation for targeted therapy. Methods 36 patients with primary RMM from Peking University Cancer Hospital were enrolled in this study. The Next-generation sequencing (NGS) data of the tumor samples were fitted into the TruSight™ Oncology 500 (TSO500) Docker pipeline to detect genomic variants. Then, the univariate and multivariate Cox hazard analysis were performed to evaluate the correlations of the variants with the overall survival (OS), along with Kaplan-Meier and log-rank test to determine their significance. Results BRAF mutations, NRG1 deletions and mitotic index were significant prognostic factors in the univariate analysis. In multivariable analysis of the OS-related prognostic factors in primary RMM patients, it revealed 2 significant alterations: BRAF mutations [HR 7.732 (95%CI: 1.735–34.456), P = 0.007] and NRG1 deletions [HR 14.976 (95%CI: 2.305–97.300), P = 0.005]. Conclusions This is the first study to show genetic alterations exclusively to Chinese patients with RMM. We confirmed genetic alterations of RMM differ from cutaneous melanoma (CM). Our study indicates that BRAF and NRG1 were correlated with a poor prognostic of RMM and may be potential therapeutic targets for RMM treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08383-6.
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Affiliation(s)
- Huan Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, Peking, 100142, Beijing, People's Republic of China
| | - Lujing Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, Peking, 100142, Beijing, People's Republic of China
| | - Yumei Lai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, Peking, 100142, Beijing, People's Republic of China
| | - Xintong Wang
- ChosenMed Technology (Beijing) Co., Ltd., Beijing, 100176, People's Republic of China
| | - Xinyin Han
- Computer Network Information Center, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.,University of the Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Siyao Liu
- ChosenMed Technology (Beijing) Co., Ltd., Beijing, 100176, People's Republic of China
| | - Dongliang Wang
- ChosenMed Technology (Beijing) Co., Ltd., Beijing, 100176, People's Republic of China
| | - Xiaojuan Li
- ChosenMed Technology (Beijing) Co., Ltd., Beijing, 100176, People's Republic of China
| | - Nana Hu
- ChosenMed Technology (Beijing) Co., Ltd., Beijing, 100176, People's Republic of China
| | - Yan Kong
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, 100142, Beijing, People's Republic of China.
| | - Lu Si
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Renal Cancer and Melanoma, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, 100142, Beijing, People's Republic of China.
| | - Zhongwu Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Fucheng Road No.52, Haidian District, Peking, 100142, Beijing, People's Republic of China.
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21
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Rawson RV, Wilmott JS, Scolyer RA. Mucosal Melanoma: A Review Emphasizing the Molecular Landscape and Implications for Diagnosis and Management. Surg Pathol Clin 2021; 14:293-307. [PMID: 34023107 DOI: 10.1016/j.path.2021.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mucosal melanomas are rare, often aggressive tumors that can arise at any mucosal site but most frequently occur in the head and neck, vulvovaginal, and anorectal regions. They have distinct biological, clinical, and histopathologic features, which have important management implications. Recent whole-genome sequencing studies have led to a greater understanding of the molecular landscape of mucosal melanomas and uncovered oncogenic drivers that could potentially be susceptible to therapeutic manipulation. The authors provide a brief overview of epidemiologic, clinical, and histopathologic features of mucosal melanoma, with particular emphasis on recent advances in understanding, which have arisen from analyzing their molecular landscape.
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Affiliation(s)
- Robert V Rawson
- Melanoma Institute Australia, The University of Sydney, North Sydney, New South Wales, Australia; Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia; Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, NSW Health Pathology, New South Wales, Australia
| | - James S Wilmott
- Melanoma Institute Australia, The University of Sydney, North Sydney, New South Wales, Australia; Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Richard A Scolyer
- Melanoma Institute Australia, The University of Sydney, North Sydney, New South Wales, Australia; Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia; Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, NSW Health Pathology, New South Wales, Australia.
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22
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Wohlmuth C, Wohlmuth-Wieser I, Laframboise S. Clinical Characteristics and Treatment Response With Checkpoint Inhibitors in Malignant Melanoma of the Vulva and Vagina. J Low Genit Tract Dis 2021; 25:146-151. [PMID: 33252450 PMCID: PMC7984764 DOI: 10.1097/lgt.0000000000000583] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES The aims of the study were to assess the clinical and histopathological characteristics of a comprehensive cohort of women with vulvovaginal melanoma (VVM) treated at our institution and to study the treatment response of checkpoint inhibitors in this patient cohort. MATERIALS AND METHODS This is a retrospective study of women with invasive VVM treated at the Princess Margaret Cancer Centre in Toronto, Ontario, Canada, over a period of 15 years. Clinical and histopathological characteristics, treatment, as well as treatment-related outcome were analyzed in 32 women. Treatment response was evaluated retrospectively using the "response criteria for use in trials testing immunotherapeutics" (iRECIST). The objective response rate was defined as the proportion of patients with complete or partial response based on the best overall response. RESULTS At a median follow-up of 37.8 months (5.8-110.4), 26 women (81.3%) had disease progression and 16 (50%) died. Thirteen patients with locally unresectable or metastatic melanoma were treated with immune checkpoint inhibitors. Ten additional cases were identified from previously published reports. The best objective response rate for immune checkpoint inhibitors was 30.4% (95% CI = 11.6%-49.2%) and the clinical benefit rate was 52.2% (95% CI = 31.8%-72.6%). The clinical benefit rate was significantly better for programmed cell death protein 1 inhibitors (or a combination) compared with ipilimumab alone (Fisher exact, p = .023). Grade 3/4 adverse events were observed in 3 (13.0%) of the 23 patients. CONCLUSIONS Women with VVM constitute a high-risk group with poor overall prognosis. Immune checkpoint inhibitors are effective in the treatment of metastatic melanoma in this patient cohort.
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Affiliation(s)
- Christoph Wohlmuth
- Division of Gynecologic Oncology, Department of Surgical Oncology, University Health Network, Toronto, Ontario, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Ontario, Canada
- Department of Obstetrics and Gynecology, Paracelsus Medical University, Salzburg, Austria
| | - Iris Wohlmuth-Wieser
- Division of Dermatology, Department of Medicine, University of Toronto, Ontario, Canada
- Department of Dermatology and Allergology, Paracelsus Medical University, Salzburg, Austria
| | - Stéphane Laframboise
- Division of Gynecologic Oncology, Department of Surgical Oncology, University Health Network, Toronto, Ontario, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Ontario, Canada
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23
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Broit N, Johansson PA, Rodgers CB, Walpole ST, Newell F, Hayward NK, Pritchard AL. Meta-Analysis and Systematic Review of the Genomics of Mucosal Melanoma. Mol Cancer Res 2021; 19:991-1004. [PMID: 33707307 DOI: 10.1158/1541-7786.mcr-20-0839] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/08/2021] [Accepted: 02/26/2021] [Indexed: 11/16/2022]
Abstract
Mucosal melanoma is a rare subtype of melanoma. To date, there has been no comprehensive systematic collation and statistical analysis of the aberrations and aggregated frequency of driver events across multiple studies. Published studies using whole genome, whole exome, targeted gene panel, or individual gene sequencing were identified. Datasets from these studies were collated to summarize mutations, structural variants, and regions of copy-number alteration. Studies using next-generation sequencing were divided into the "main" cohort (n = 173; fresh-frozen samples), "validation" cohort (n = 48; formalin-fixed, paraffin-embedded samples) and a second "validation" cohort comprised 104 tumors sequenced using a targeted panel. Studies assessing mutations in BRAF, KIT, and NRAS were summarized to assess hotspot mutations. Statistical analysis of the main cohort variant data revealed KIT, NF1, BRAF, NRAS, SF3B1, and SPRED1 as significantly mutated genes. ATRX and SF3B1 mutations occurred more commonly in lower anatomy melanomas and CTNNB1 in the upper anatomy. NF1, PTEN, CDKN2A, SPRED1, ATM, CHEK2, and ARID1B were commonly affected by chromosomal copy loss, while TERT, KIT, BRAF, YAP1, CDK4, CCND1, GAB2, MDM2, SKP2, and MITF were commonly amplified. Further notable genomic alterations occurring at lower frequencies indicated commonality of signaling networks in tumorigenesis, including MAPK, PI3K, Notch, Wnt/β-catenin, cell cycle, DNA repair, and telomere maintenance pathways. This analysis identified genomic aberrations that provide some insight to the way in which specific pathways may be disrupted. IMPLICATIONS: Our analysis has shown that mucosal melanomas have a diverse range of genomic alterations in several biological pathways. VISUAL OVERVIEW: http://mcr.aacrjournals.org/content/molcanres/19/6/991/F1.large.jpg.
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Affiliation(s)
- Natasa Broit
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.,Faculty of Medicine, University of Queensland, Queensland, Australia
| | - Peter A Johansson
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Chloe B Rodgers
- Department of Genetics and Immunology, University of the Highlands and Islands, Inverness, Scotland
| | | | - Felicity Newell
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Nicholas K Hayward
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Antonia L Pritchard
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia. .,Department of Genetics and Immunology, University of the Highlands and Islands, Inverness, Scotland
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24
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Vergara IA, Wilmott JS, Long GV, Scolyer RA. Genetic drivers of non-cutaneous melanomas: Challenges and opportunities in a heterogeneous landscape. Exp Dermatol 2021; 31:13-30. [PMID: 33455025 DOI: 10.1111/exd.14287] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/16/2020] [Accepted: 01/13/2021] [Indexed: 12/13/2022]
Abstract
Non-cutaneous melanomas most frequently involve the uveal tract and mucosal membranes, including the conjunctiva. In contrast to cutaneous melanoma, they often present at an advanced clinical stage, are associated with worse clinical outcomes and show poorer responses to immunotherapy. The mutational load within most non-cutaneous melanomas reflects their lower ultraviolet light (UV) exposure. The genetic drivers within non-cutaneous melanomas are heterogeneous. Within ocular melanomas, posterior uveal tract melanomas typically harbour one of two distinct, sets of driver mutations and alterations of clinical and biological significance. In contrast to posterior uveal tract melanomas, anterior uveal tract melanomas of the iris and conjunctival melanomas frequently carry both a higher mutational burden and specific mutations linked with UV exposure. The genetic drivers in iris melanomas more closely resemble those of the posterior uveal tract, whereas conjunctival melanomas harbour similar genetic driver mutations to cutaneous melanomas. Mucosal melanomas occur in sun-shielded sites including sinonasal and oral cavities, nasopharynx, oesophagus, genitalia, anus and rectum, and their mutational landscape is frequently associated with a dominant process of spontaneous deamination and infrequent presence of UV mutation signatures. Genetic drivers of mucosal melanomas are diverse and vary with anatomic location. Further understanding of the causes of already identified recurrent molecular events in non-cutaneous melanomas, identification of additional drivers in specific subtypes, integrative multi-omics analyses and analysis of the tumor immune microenvironment will expand knowledge in this field. Furthermore, such data will likely uncover new therapeutic strategies which will lead to improved clinical outcomes in non-cutaneous melanoma patients.
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Affiliation(s)
- Ismael A Vergara
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - James S Wilmott
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Georgina V Long
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Royal North Shore and Mater Hospitals, Sydney, NSW, Australia
| | - Richard A Scolyer
- Melanoma Institute Australia, The University of Sydney, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital and New South Wales Health Pathology, Sydney, NSW, Australia
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25
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Mundra PA, Dhomen N, Rodrigues M, Mikkelsen LH, Cassoux N, Brooks K, Valpione S, Reis-Filho JS, Heegaard S, Stern MH, Roman-Roman S, Marais R. Ultraviolet radiation drives mutations in a subset of mucosal melanomas. Nat Commun 2021; 12:259. [PMID: 33431815 PMCID: PMC7801393 DOI: 10.1038/s41467-020-20432-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022] Open
Abstract
Although identified as the key environmental driver of common cutaneous melanoma, the role of ultraviolet radiation (UVR)-induced DNA damage in mucosal melanoma is poorly defined. We analyze 10 mucosal melanomas of conjunctival origin by whole genome sequencing and our data shows a predominance of UVR-associated single base substitution signature 7 (SBS7) in the majority of the samples. Our data shows mucosal melanomas with SBS7 dominance have similar genomic patterns to cutaneous melanomas and therefore this subset should not be excluded from treatments currently used for common cutaneous melanoma.
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Grants
- A27412 Cancer Research UK
- 17240 Cancer Research UK
- A22902 Cancer Research UK
- Department of Health
- 100282/Z/12/Z Wellcome Trust
- P30 CA008748 NCI NIH HHS
- 19279 Cancer Research UK
- 22902 Cancer Research UK
- Wellcome Trust
- Cancer Research UK (CRUK)
- Wellcome Trust (Wellcome)
- European Research Council (ERC-ADG-2014 671262)[Marais], Institut Curie [Rodrigues, Stern], the Ligue Nationale Contre le Cancer (Labellisation) [Rodrigues, Stern], Site de Recherche Intégrée sur le Cancer (SiRIC) de l’Institut Curie [Rodrigues, Stern], Institut National de la Santé et de la Recherche Médicale [Stern], Candys Foundation Denmark [Mikkelsen],Breast Cancer Research Foundation [Reis-Filho], Harry J Lloyd Charitable Trust [Valpione], Manchester NIHR Biomedical Research Centre
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Affiliation(s)
- Piyushkumar A Mundra
- Molecular Oncology Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park, SK10 4TG, UK
| | - Nathalie Dhomen
- Molecular Oncology Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park, SK10 4TG, UK
| | - Manuel Rodrigues
- Institut Curie, PSL Research University, INSERM U830, DNA Repair and Uveal Melanoma (D.R.U.M.), Equipe labellisée par la Ligue Nationale contre le Cancer, 75248, Paris, France
- Institut Curie, PSL Research University, Department of Medical Oncology, 75248, Paris, France
| | - Lauge Hjorth Mikkelsen
- Department of Pathology/Eye Pathology Section, University of Copenhagen, Rigshospitalet, 2100, Copenhagen, Denmark
| | - Nathalie Cassoux
- Institut Curie, PSL Research University, Department of Ocular Oncology, 75248, Paris, France
| | - Kelly Brooks
- Molecular Oncology Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park, SK10 4TG, UK
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, 4006, Australia
| | - Sara Valpione
- Molecular Oncology Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park, SK10 4TG, UK
- The Christie NHS Foundation Trust, Manchester, M20 4GJ, UK
| | - Jorge S Reis-Filho
- Experimental Pathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York City, NY, USA
| | - Steffen Heegaard
- Department of Pathology/Eye Pathology Section, University of Copenhagen, Rigshospitalet, 2100, Copenhagen, Denmark
| | - Marc-Henri Stern
- Institut Curie, PSL Research University, INSERM U830, DNA Repair and Uveal Melanoma (D.R.U.M.), Equipe labellisée par la Ligue Nationale contre le Cancer, 75248, Paris, France
- Institut Curie, PSL Research University, Department of Genetics, 75248, Paris, France
| | - Sergio Roman-Roman
- Institut Curie, PSL Research University, Translational Research Department, 75248, Paris, France
| | - Richard Marais
- Molecular Oncology Group, Cancer Research UK Manchester Institute, The University of Manchester, Alderley Park, SK10 4TG, UK.
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26
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Alicea GM, Rebecca VW. Emerging strategies to treat rare and intractable subtypes of melanoma. Pigment Cell Melanoma Res 2021; 34:44-58. [PMID: 32274887 PMCID: PMC7544642 DOI: 10.1111/pcmr.12880] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/18/2020] [Accepted: 03/30/2020] [Indexed: 02/06/2023]
Abstract
Melanoma is the deadliest form of skin cancer, possessing a diverse landscape of subtypes with distinct molecular signatures and levels of aggressiveness. Although immense progress has been achieved therapeutically for patients with the most common forms of this disease, little is known of how to effectively treat patients with rarer subtypes of melanoma. These subtypes include acral lentiginous (the rarest form of cutaneous melanoma; AL), uveal, and mucosal melanomas, which display variations in distribution across (a) the world, (b) patient age-groups, and (c) anatomic sites. Unfortunately, patients with these relatively rare subtypes of melanoma typically respond worse to therapies approved for the more common, non-AL cutaneous melanoma and do not have effective alternatives, and thus consequently have worse overall survival rates. Achieving durable therapeutic responses in these high-risk melanoma subtypes represents one of the greatest challenges of the field. This review aims to collate and highlight effective preclinical and/or clinical strategies against these rare forms of melanoma.
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27
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The biological function and clinical significance of SF3B1 mutations in cancer. Biomark Res 2020; 8:38. [PMID: 32905346 PMCID: PMC7469106 DOI: 10.1186/s40364-020-00220-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023] Open
Abstract
Spliceosome mutations have become the most interesting mutations detected in human cancer in recent years. The spliceosome, a large, dynamic multimegadalton small nuclear ribonucleoprotein composed of small nuclear RNAs associated with proteins, is responsible for removing introns from precursor mRNA (premRNA) and generating mature, spliced mRNAs. SF3B1 is the largest subunit of the spliceosome factor 3b (SF3B) complex, which is a core component of spliceosomes. Recurrent somatic mutations in SF3B1 have been detected in human cancers, including hematological malignancies and solid tumors, and indicated to be related to patient prognosis. This review summarizes the research progress of SF3B1 mutations in cancer, including SF3B1 mutations in the HEAT domain, the multiple roles and aberrant splicing events of SF3B1 mutations in the pathogenesis of tumors, and changes in mutated cancer cells regarding sensitivity to SF3B small-molecule inhibitors. In addition, the potential of SF3B1 or its mutations to serve as biomarkers or therapeutic targets in cancer is discussed. The accumulated knowledge about SF3B1 mutations in cancer provides critical insight into the integral role the SF3B1 protein plays in mRNA splicing and suggests new targets for anticancer therapy.
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28
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Chacón M, Pfluger Y, Angel M, Waisberg F, Enrico D. Uncommon Subtypes of Malignant Melanomas: A Review Based on Clinical and Molecular Perspectives. Cancers (Basel) 2020; 12:E2362. [PMID: 32825562 PMCID: PMC7565756 DOI: 10.3390/cancers12092362] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/25/2020] [Accepted: 07/29/2020] [Indexed: 12/26/2022] Open
Abstract
Malignant melanoma represents the most aggressive type of skin cancer. Modern therapies, including targeted agents and immune checkpoint inhibitors, have changed the dismal prognosis that characterized this disease. However, most evidence was obtained by studying patients with frequent subtypes of cutaneous melanoma (CM). Consequently, there is an emerging need to understand the molecular basis and treatment approaches for unusual melanoma subtypes. Even a standardized definition of infrequent or rare melanoma is not clearly established. For that reason, we reviewed this challenging topic considering clinical and molecular perspectives, including uncommon CMs-not associated with classical V600E/K BRAF mutations-malignant mucosal and uveal melanomas, and some unusual independent entities, such as amelanotic, desmoplastic, or spitzoid melanomas. Finally, we collected information regarding melanomas from non-traditional primary sites, which emerge from locations as unique as meninges, dermis, lymph nodes, the esophagus, and breasts. The aim of this review is to summarize and highlight the main scientific evidence regarding rare melanomas, with a particular focus on treatment perspectives.
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Affiliation(s)
- Matías Chacón
- Department of Medical Oncology, Alexander Fleming Cancer Institute, Buenos Aires 1426, Argentina; (Y.P.); (M.A.); (F.W.); (D.E.)
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29
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Li C, Xie W, Rosenblum JS, Zhou J, Guo J, Miao Y, Shen Y, Wang H, Gong L, Li M, Zhao S, Cheng S, Zhu H, Jiang T, Ling S, Wang F, Zhang H, Zhang M, Qu Y, Zhang Q, Li G, Wang J, Ma J, Zhuang Z, Zhang Y. Somatic SF3B1 hotspot mutation in prolactinomas. Nat Commun 2020; 11:2506. [PMID: 32427851 PMCID: PMC7237453 DOI: 10.1038/s41467-020-16052-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 04/07/2020] [Indexed: 11/09/2022] Open
Abstract
The genetic basis and corresponding clinical relevance of prolactinomas remain poorly understood. Here, we perform whole genome sequencing (WGS) on 21 patients with prolactinomas to detect somatic mutations and then validate the mutations with digital polymerase chain reaction (PCR) analysis of tissue samples from 227 prolactinomas. We identify the same hotspot somatic mutation in splicing factor 3 subunit B1 (SF3B1R625H) in 19.8% of prolactinomas. These patients with mutant prolactinomas display higher prolactin (PRL) levels (p = 0.02) and shorter progression-free survival (PFS) (p = 0.02) compared to patients without the mutation. Moreover, we identify that the SF3B1R625H mutation causes aberrant splicing of estrogen related receptor gamma (ESRRG), which results in stronger binding of pituitary-specific positive transcription factor 1 (Pit-1), leading to excessive PRL secretion. Thus our study validates an important mutation and elucidates a potential mechanism underlying the pathogenesis of prolactinomas that may lead to the development of targeted therapeutics.
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Affiliation(s)
- Chuzhong Li
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
- Brain Tumor Center, Beijing Institute for Brain Disorders, Beijing, 100070, China
| | - Weiyan Xie
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Jared S Rosenblum
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jianyu Zhou
- Bioinformatics Division, Department of Computer Science and Technology, BNRIST, Tsinghua University, Beijing, 100084, China
| | - Jing Guo
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Yazhou Miao
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Yutao Shen
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Hongyun Wang
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Lei Gong
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Mingxuan Li
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Sida Zhao
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Sen Cheng
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Haibo Zhu
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Tao Jiang
- Bioinformatics Division, Department of Computer Science and Technology, BNRIST, Tsinghua University, Beijing, 100084, China
- Department of Computer Science and Engineering, University of California, Riverside, CA, 92521, USA
| | - Shiying Ling
- Department of Neurosurgery, The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Fei Wang
- Department of Neurosurgery, The First Affiliated Hospital of University of Science and Technology of China, Hefei, 230001, China
| | - Hongwei Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Mingshan Zhang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Yanming Qu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, 100093, China
| | - Qi Zhang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Guilin Li
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Junmei Wang
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China
| | - Jun Ma
- Department of Neuroimaging, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China
| | - Zhengping Zhuang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Yazhuo Zhang
- Department of Cell Biology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, 100070, China.
- Department of Neurosurgery, Beijing Tiantan Hospital affiliated to Capital Medical University, Beijing, 100070, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China.
- Brain Tumor Center, Beijing Institute for Brain Disorders, Beijing, 100070, China.
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30
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Roles and mechanisms of alternative splicing in cancer - implications for care. Nat Rev Clin Oncol 2020; 17:457-474. [PMID: 32303702 DOI: 10.1038/s41571-020-0350-x] [Citation(s) in RCA: 379] [Impact Index Per Article: 94.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2020] [Indexed: 12/14/2022]
Abstract
Removal of introns from messenger RNA precursors (pre-mRNA splicing) is an essential step for the expression of most eukaryotic genes. Alternative splicing enables the regulated generation of multiple mRNA and protein products from a single gene. Cancer cells have general as well as cancer type-specific and subtype-specific alterations in the splicing process that can have prognostic value and contribute to every hallmark of cancer progression, including cancer immune responses. These splicing alterations are often linked to the occurrence of cancer driver mutations in genes encoding either core components or regulators of the splicing machinery. Of therapeutic relevance, the transcriptomic landscape of cancer cells makes them particularly vulnerable to pharmacological inhibition of splicing. Small-molecule splicing modulators are currently in clinical trials and, in addition to splice site-switching antisense oligonucleotides, offer the promise of novel and personalized approaches to cancer treatment.
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31
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Nassar KW, Tan AC. The mutational landscape of mucosal melanoma. Semin Cancer Biol 2020; 61:139-148. [PMID: 31655118 PMCID: PMC7078020 DOI: 10.1016/j.semcancer.2019.09.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/13/2019] [Accepted: 09/19/2019] [Indexed: 12/27/2022]
Abstract
Mucosal melanoma is a rare and aggressive subtype of melanoma that has a less favorable prognosis due to the lack of understanding and identification of oncogenic drivers. Recently, whole genome and whole exome sequencing have unveiled the molecular landscape and potential oncogenic drivers of mucosal melanoma, which remains distinct from cutaneous melanoma. In this review, we provide an overview of the genomic landscape of mucosal melanoma, with a focus on molecular studies identifying potential oncogenic drivers allowing for a better mechanistic understanding of the biology of mucosal melanoma. We summarized the published genomics and clinical data supporting the observations that mucosal melanoma harbors distinct genetic alterations and oncogenic drivers from cutaneous melanoma, and thus should be treated accordingly. The common drivers (BRAF and NRAS) found in cutaneous melanoma have lower mutation rate in mucosal melanoma. In contrast, SF3B1 and KIT have higher mutation rate in mucosal melanoma as compared to cutaneous melanoma. From the meta-analysis, we also observed that the mutational profiles are slightly different between the "upper" and "lower" regions of mucosal melanoma, providing new insights and therapeutic options for the mucosal melanoma patients. Mutations identified in mucosal melanoma should be incorporated into routine clinical testing, as there are targeted therapies already developed for treating patients with these mutations in the precision medicine era.
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Affiliation(s)
- Kelsey W Nassar
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80111, USA; Cancer Biology Training Program, Graduate School, University of Colorado Anschutz Medical Campus, Aurora, CO 80111, USA
| | - Aik Choon Tan
- Division of Medical Oncology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80111, USA; Cancer Biology Training Program, Graduate School, University of Colorado Anschutz Medical Campus, Aurora, CO 80111, USA; Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL 33612 USA.
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32
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Atypical BRAF and NRAS Mutations in Mucosal Melanoma. Cancers (Basel) 2019; 11:cancers11081133. [PMID: 31398831 PMCID: PMC6721527 DOI: 10.3390/cancers11081133] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 02/06/2023] Open
Abstract
Primary mucosal melanomas represent a minority of melanomas, but have a significantly worse prognosis than cutaneous melanomas. A better characterization of the molecular pathogenesis of this melanoma subtype could help us understand the risk factors associated with the development of mucosal melanomas and highlight therapeutic targets. Because the Mitogen-Activated Protein Kinase (MAPK) pathway plays such a significant role in melanoma development, we explore v-raf murine sarcoma viral oncogene homolog B (BRAF) and neuroblastoma RAS viral oncogene homolog (NRAS) mutations in mucosal melanoma and compare them to the mutation profiles in cutaneous melanoma and other tumors with BRAF and NRAS mutations. We show that in addition to being less frequent, BRAF and NRAS mutations are different in mucosal melanoma compared to cutaneous melanomas. Strikingly, the BRAF and NRAS mutation profiles in mucosal melanoma are closer to those found in cancers such as lung cancer, suggesting that mutations in mucosal melanoma could be linked to some genotoxic agents that remain to be identified. We also show that the atypical BRAF and NRAS mutations found in mucosal melanomas have particular effects on protein activities, which could be essential for the transformation of mucosal melanocytes.
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