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Jiang H, He K, Tan J, Zhu D, Yang N, Wang Y, Zhang J, Li X, Ren Y, Lu Y. In vitro modeling of recurrent Dermatofibrosarcoma Protuberans: Assessment of 5-aminolevulinic acid photodynamic therapy efficacy. Photodiagnosis Photodyn Ther 2024; 47:104093. [PMID: 38641030 DOI: 10.1016/j.pdpdt.2024.104093] [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: 03/11/2024] [Revised: 04/02/2024] [Accepted: 04/17/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND Dermatofibrosarcoma Protuberans (DFSP) is a rare, low-grade malignant tumor of the dermis with a high recurrence rate post-surgery. Current treatments, including surgery, radiotherapy, and targeted therapy, have limitations. Photodynamic therapy (PDT) with 5-aminolevulinic acid (5-ALA) is a promising non-invasive approach, but its efficacy in DFSP treatment remains underexplored. METHODS This study aimed to evaluate the anti-tumor efficacy of 5-ALA PDT using an in vitro model derived from a recurrent DFSP patient. The cells were treated with varying concentrations of 5-ALA and exposed to red light, followed by assessments of cell viability, proliferation, apoptosis, migration, invasion, angiogenesis, and expression of DFSP-related genes and proteins. RESULTS 5-ALA PDT significantly reduced DFSP cell viability in a dose-dependent manner and induced apoptosis. It also effectively inhibited cell proliferation, migration, and invasion, as well as suppressed angiogenic activity in conditioned media. Furthermore, 5-ALA PDT downregulated the expression of COL1A1 and PDGFRB, key genes in DFSP pathogenesis. CONCLUSIONS The findings provide the first evidence of 5-ALA PDT's in vitro anti-tumor efficacy against DFSP, suggesting its potential as a novel therapeutic approach for DFSP. Further studies are warranted to explore the clinical utility of 5-ALA PDT in preventing DFSP recurrence.
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Affiliation(s)
- Hao Jiang
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Kunqian He
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Jie Tan
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Ding Zhu
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Nan Yang
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yuanyuan Wang
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Junbo Zhang
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Xinying Li
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yuan Ren
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yuangang Lu
- Department of Plastic and Cosmetic Surgery, Daping Hospital, Army Medical University, Chongqing 400042, China.
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Hallier A, Callier P, Sauge J, Cristofari S, Lombardo GAG, Aubriot-Lorton MH, Stivala A. Novel role of fluorescent in situ hybridization technique (FISH) in recommended surgical margins of dermatofibrosarcoma protuberans: A preliminary study. ANN CHIR PLAST ESTH 2024; 69:124-130. [PMID: 37652836 DOI: 10.1016/j.anplas.2023.08.006] [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: 07/17/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Dermatofibrosarcoma protuberans (DFSP) is a rare skin tumor. There is no standard recommendation for its surgical management. The currently used histological analysis are HES (hematoxylin eosin saffron) staining and immunohistochemistry for CD34 expression in particular cases. Fluorescent in situ hybridization (FISH) technique is only used to qualify the DFSP as translocated or non-translocated and is not used as a diagnostic method. The aim of our study was to determine by FISH (as a diagnostic method) whether cancerous cells that could not be identified through HES staining±immunohistochemistry were present at the two-centimeter margins that were found to be tumor-free. METHODS Samples from patients who underwent surgery between 2010 and 2018 were collected. Intralesional and peripheral (at 2cm margins) paraffin slides were included. An average of 7.4 slides per specimen was analyzed. Firstly, the preselected slides were reread by a senior pathologist to confirm the absence of microscopic findings of DFSP at 2cm margins. Secondly a FISH analysis was used as a quantitative diagnostic approach, in order to find the t(17;22) translocation. RESULTS Among the seven specimens that included 2cm margins, two samples presented one or more translocations, which were not visible in standard morphology assessments at two centimeters tumor-free margins. CONCLUSIONS FISH analysis can have a new role in defining tumor-free margins. This would reduce the incidence of disease recurrence after resection and improve the post-operative complementary care.
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Affiliation(s)
- A Hallier
- Department of Maxillofacial, Plastic, Reconstructive and Esthetic Surgery, Dijon University Hospital, Dijon, France
| | - P Callier
- Department of Human Genetics, Dijon University Hospital, Dijon, France
| | - J Sauge
- Department of Pathology, Dijon University Hospital, Dijon, France
| | - S Cristofari
- Sorbonne University, 21, rue de l'École-de-Médecine, 75006 Paris, France
| | - G A G Lombardo
- Azienda Ospedaliera Cannizzaro, Burn & Plastic Surgery, Via Messina, 829 Catania, Italy; Università Unikore di Enna, Piazza dell'Università, 94100 Enna EN, Italy.
| | | | - A Stivala
- Department of Maxillofacial, Plastic, Reconstructive and Esthetic Surgery, Dijon University Hospital, Dijon, France; Plastic, Reconstructive and Aesthetic Surgery, Centre Hospitalier de Mâcon, 350, boulevard Louis-Escande, 71000 Mâcon, France
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3
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Ge LL, Wang ZC, Wei CJ, Huang JX, Liu J, Gu YH, Wang W, Li QF. Unraveling intratumoral complexity in metastatic dermatofibrosarcoma protuberans through single-cell RNA sequencing analysis. Cancer Immunol Immunother 2023; 72:4415-4429. [PMID: 37938367 DOI: 10.1007/s00262-023-03577-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/31/2023] [Indexed: 11/09/2023]
Abstract
Dermatofibrosarcoma protuberans (DFSP) stands as a rare and locally aggressive soft tissue tumor, characterized by intricated molecular alterations. The imperative to unravel the complexities of intratumor heterogeneity underscores effective clinical management. Herein, we harnessed single-cell RNA sequencing (scRNA-seq) to conduct a comprehensive analysis encompassing samples from primary sites, satellite foci, and lymph node metastases. Rigorous preprocessing of raw scRNA-seq data ensued, and employing t-distributed stochastic neighbor embedding (tSNE) analysis, we unveiled seven major cell populations and fifteen distinct subpopulations. Malignant cell subpopulations were delineated using infercnv for copy number variation calculations. Functional and metabolic variations of diverse malignant cell populations across samples were deciphered utilizing GSVA and the scMetabolism R packages. Additionally, the exploration of differentiation trajectories within diverse fibroblast subpopulations was orchestrated through pseudotime trajectory analyses employing CytoTRACE and Monocle2, and further bolstered by GO analyses to elucidate the functional disparities across distinct differentiation states. In parallel, we segmented the cellular components of the immune microenvironment and verified the presence of SPP1+ macrophage, which constituted the major constituent in lymph node metastases. Remarkably, the CellChat facilitated a comprehensive intercellular communication analysis. This study culminates in an all-encompassing single-cell transcriptome atlas, propounding novel insights into the multifaceted nature of intratumor heterogeneity and fundamental molecular mechanisms propelling metastatic DFSP.
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Affiliation(s)
- Ling-Ling Ge
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Zhi-Chao Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Cheng-Jiang Wei
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Jing-Xuan Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Jun Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Yi-Hui Gu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Wei Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Qing-Feng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.
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Akiyama T, Yoshimatsu Y, Noguchi R, Sin Y, Osaki J, Ono T, Adachi Y, Tsuchiya R, Toda Y, Ogura K, Kojima N, Yoshida A, Ohtori S, Kawai A, Kondo T. Establishment and characterization of NCC-DFSP4-C1: a novel cell line from a patient with dermatofibrosarcoma protuberans having the fibrosarcomatous transformation. Hum Cell 2023; 36:2187-2194. [PMID: 37490236 DOI: 10.1007/s13577-023-00932-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/12/2023] [Indexed: 07/26/2023]
Abstract
Dermatofibrosarcoma protuberans (DFSP) is a superficial low-grade sarcoma, genetically characterized by a fusion gene in collagen type I α (COL1A1) gene and platelet-derived growth factor subunit β (PDGFB). DFSP is locally aggressive and does not typically metastasize. However, DFSP with fibrosarcomatous transformation, which occurs in 7-16% of DFSP cases, demonstrates a poor prognosis than classic DFSP with a higher local recurrence rate and metastatic potential. Although imatinib, a PDGF receptor inhibitor, is a potent therapeutic agent for classic DFSP, it is less effective for DFSP with fibrosarcomatous transformation. The development of definitive chemotherapies for DFSP with fibrosarcomatous transformation is required. Patient-derived tumor cell lines are indispensable tools for preclinical research to discover novel therapeutic agents. However, only seven cell lines were derived from DFSP, out of which only two were established from DFSP with fibrosarcomatous transformation. Hence, in the present study, we established a novel DFSP cell line, NCC-DFSP4-C1, from a surgically resected DFSP tumor specimen with fibrosarcomatous transformation. NCC-DFSP4-C1 harbored an identical COL1A1-PDGFB fusion gene as its donor tumor. NCC-DFSP4-C1 cells retained the morphology of their donor tumor and demonstrated constant proliferation, spheroid formation, and invasion capability in vitro. By screening a drug library, we found that bortezomib and romidepsin demonstrated the strongest suppressive effects on the proliferation of NCC-DFSP4-C1 cells. In conclusion, we report a novel cell line of DFSP with fibrosarcomatous transformation, and demonstrate its utility in the development of novel therapeutic agents for DFSP.
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Affiliation(s)
- Taro Akiyama
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-Shi, Chiba, 260-8670, Japan
| | - Yuki Yoshimatsu
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
- Division of Patient-Derived Cancer Model, Tochigi Cancer Center, 4-9-13 Yohnan, Utsunomiya, Tochigi, 320-0834, Japan
| | - Rei Noguchi
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yooksil Sin
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Julia Osaki
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Takuya Ono
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yuki Adachi
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Ryuto Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-Shi, Chiba, 260-8670, Japan
- Division of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yu Toda
- Division of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Koichi Ogura
- Division of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Naoki Kojima
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-Shi, Chiba, 260-8670, Japan
| | - Akira Kawai
- Division of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Tadashi Kondo
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
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Tang X, Hu X, Wen Y, Min L. Progressive insights into fibrosarcoma diagnosis and treatment: leveraging fusion genes for advancements. Front Cell Dev Biol 2023; 11:1284428. [PMID: 37920823 PMCID: PMC10618559 DOI: 10.3389/fcell.2023.1284428] [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: 08/28/2023] [Accepted: 10/05/2023] [Indexed: 11/04/2023] Open
Abstract
Fibrosarcoma, originating from fibroblast cells, represents a malignant neoplasm that can manifest across all genders and age groups. Fusion genes are notably prevalent within the landscape of human cancers, particularly within the subtypes of fibrosarcoma, where they exert substantial driving forces in tumorigenesis. Many fusion genes underlie the pathogenic mechanisms triggering the onset of this disease. Moreover, a close association emerges between the spectrum of fusion gene types and the phenotypic expression of fibrosarcoma, endowing fusion genes not only as promising diagnostic indicators for fibrosarcoma but also as pivotal foundations for its subcategorization. Concurrently, an increasing number of chimeric proteins encoded by fusion genes have been substantiated as specific targets for treating fibrosarcoma, consequently significantly enhancing patient prognoses. This review comprehensively delineates the mechanisms behind fusion gene formation in fibrosarcoma, the lineage of fusion genes, methodologies employed in detecting fusion genes within fibrosarcoma, and the prospects of targeted therapeutic interventions driven by fusion genes within the fibrosarcoma domain.
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Affiliation(s)
- Xiaodi Tang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, Chengdu, Sichuan, China
| | - Xin Hu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, Chengdu, Sichuan, China
| | - Yang Wen
- Department of Orthopedics, Zigong Fourth People’s Hospital, Zigong, China
| | - Li Min
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Model Worker and Craftsman Talent Innovation Workshop of Sichuan Province, Chengdu, Sichuan, China
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Tanaka M, Nakamura T. Targeting epigenetic aberrations of sarcoma in CRISPR era. Genes Chromosomes Cancer 2023; 62:510-525. [PMID: 36967299 DOI: 10.1002/gcc.23142] [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] [Received: 02/09/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Sarcomas are rare malignancies that exhibit diverse biological, genetic, morphological, and clinical characteristics. Genetic alterations, such as gene fusions, mutations in transcriptional machinery components, histones, and DNA methylation regulatory molecules, play an essential role in sarcomagenesis. These mutations induce and/or cooperate with specific epigenetic aberrations required for the growth and maintenance of sarcomas. Appropriate mouse models have been developed to clarify the significance of genetic and epigenetic interactions in sarcomas. Studies using the mouse models for human sarcomas have demonstrated major advances in our understanding the developmental processes as well as tumor microenvironment of sarcomas. Recent technological progresses in epigenome editing will not only improve the studies using animal models but also provide a direct clue for epigenetic therapies. In this manuscript, we review important epigenetic aberrations in sarcomas and their representative mouse models, current methods of epigenetic editing using CRISPR/dCas9 systems, and potential applications in sarcoma studies and therapeutics.
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Affiliation(s)
- Miwa Tanaka
- Project for Cancer Epigenomics, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Experimental Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Takuro Nakamura
- Department of Experimental Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
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Homsy P, Böhling T, Seitsonen A, Sampo M, Tukiainen E, Blomqvist C. Patterns of Metastatic Recurrence of Genetically Confirmed Myxoid Liposarcoma. Ann Surg Oncol 2023; 30:4489-4497. [PMID: 36907960 PMCID: PMC10250512 DOI: 10.1245/s10434-023-13312-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 02/16/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND Most sarcomas metastasize predominantly to the lungs, and chest x-ray, or computed tomography, is the most commonly used staging investigation. Myxoid liposarcomas (MLSs) are rare tumors with a tendency to metastasize to extrapulmonary loci. The aim of this study was to assess the locations of the first metastases in MLS patients, to guide the design of effective staging and follow-up imaging protocols. METHODS Patients treated for MLS between 1987 and 2017 were identified in a prospectively maintained register. Histology of the tumors was reassessed. In addition, the presence of one of the pathognomonic gene translocations was confirmed, uniquely for a retrospective series. The surgical and oncological outcomes were reviewed. A comprehensive review of the literature was performed on the metastatic pattern of MLS, including series with 10 or more MLS patients with metastatic disease. RESULTS A total of 32 patients with genetically confirmed MLS were identified, with a median follow-up of 7.6 years. Seven patients (22%) developed metastatic disease, five initially intra-abdominally and only one to the lungs. The comprehensive review included 14 series with 1853 patients, 348 (19%) of whom had metastases. The location of the first metastases was soft tissues in 32% of patients, intra-abdominal in 26%, pulmonary in 24%, and bone in 17%. CONCLUSIONS MLSs metastasize often intra-abdominally and to extra-abdominal soft tissues. Thus, whole-body imaging may be indicated during the initial assessment and follow-up of these patients.
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Affiliation(s)
- Pauliina Homsy
- Department of Plastic Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Tom Böhling
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Anne Seitsonen
- HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland
| | - Mika Sampo
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Erkki Tukiainen
- Department of Plastic Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Carl Blomqvist
- Department of Oncology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Go CC, Lahaie Luna GM, Briceño CA. Epidemiological trends and survival outcomes for dermatofibrosarcoma protuberans of the head and neck region. Int J Dermatol 2023; 62:664-671. [PMID: 36318642 DOI: 10.1111/ijd.16459] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/16/2022] [Accepted: 10/06/2022] [Indexed: 04/19/2023]
Abstract
BACKGROUND Given the rarity of dermatofibrosarcoma protuberans (DFSP) of the head and neck, the incidence and prognosis specific to this region are poorly defined. The purpose of this study was to determine epidemiology, clinicopathological characteristics, and prognostic factors of patients with DFSP of the head and neck region, using the Surveillance, Epidemiology, and End Results (SEER) database. METHODS A cohort analysis was performed for primary head and neck DFSP reported to the SEER database between 2000 and 2018. Overall survival was determined using Kaplan-Meier analysis while Cox regression modeling was used to examine predictive factors. RESULTS A total of 681 cases were reported to the SEER database between 2000 and 2018. Incidence rates decreased over time. Overall survival was 94%, and disease-specific survival was 99% at 5 years. Cases of head and neck DFSP were found to occur more frequently in males. There was no difference in incidence rates between White patients and Black patients. Age ≥ 60 years old, tumor size, and living location were the most significant predictors of overall survival. CONCLUSIONS This analysis of DFSP of the head and neck demonstrates a downward trend in incidence, higher age-standardized incidence in males, and similar race-based incidences, which differs from data reported on DFSP of other anatomic locations.
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Affiliation(s)
- Cammille C Go
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Gabriela M Lahaie Luna
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Scheie Eye Institute, Philadelphia, PA, USA
- Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - César A Briceño
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Scheie Eye Institute, Philadelphia, PA, USA
- Department of Ophthalmology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
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Pandey P, Khan F, Upadhyay TK, Seungjoon M, Park MN, Kim B. New insights about the PDGF/PDGFR signaling pathway as a promising target to develop cancer therapeutic strategies. Biomed Pharmacother 2023; 161:114491. [PMID: 37002577 DOI: 10.1016/j.biopha.2023.114491] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/20/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
Numerous cancers express platelet-derived growth factors (PDGFs) and PDGF receptors (PDGFRs). By directly stimulating tumour cells in an autocrine manner or by stimulating tumour stromal cells in a paracrine manner, the platelet-derived growth factor (PDGF)/platelet-derived growth factor receptor (PDGFR) pathway is crucial in the growth and spread of several cancers. To combat hypoxia in the tumour microenvironment, it encourages angiogenesis. A growing body of experimental data shows that PDGFs target malignant cells, vascular cells, and stromal cells to modulate tumour growth, metastasis, and the tumour microenvironment. To combat medication resistance and enhance patient outcomes in cancers, targeting the PDGF/PDGFR pathway is a viable therapeutic approach. There have been reports of anomalies in the PDGF pathway, including the gain of function point mutations, activating chromosomal translocations, or overexpression or amplification of PDGF receptors (PDGFRs). As a result, it has been shown that targeting the PDGF/PDGFR signaling pathway is an effective method for treating cancer. As a result, this study will concentrate on the regulation of the PDGF/PDGFR signaling system, in particular the current methods and inhibitors used in cancer treatment, as well as the associated therapeutic advantages and side effects.
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Affiliation(s)
- Pratibha Pandey
- Department of Biotechnology, Noida Institute of Engineering and Technology, Greater Noida, UP, India
| | - Fahad Khan
- Department of Biotechnology, Noida Institute of Engineering and Technology, Greater Noida, UP, India.
| | - Tarun Kumar Upadhyay
- Department of Biotechnology, Parul Institute of Applied Sciences and Centre of Research for Development, Parul University, Vadodara 391760, India
| | - Moon Seungjoon
- Chansol Hospital of Korean Medicine, 290, Buheung-ro, Bupyeong-gu, Incheon 21390, Republic of Korea; Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, Republic of Korea; Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemun-gu, Seoul 02447, Republic of Korea; Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea.
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10
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Tanaka M, Chuaychob S, Homme M, Yamazaki Y, Lyu R, Yamashita K, Ae K, Matsumoto S, Kumegawa K, Maruyama R, Qu W, Miyagi Y, Yokokawa R, Nakamura T. ASPSCR1::TFE3 orchestrates the angiogenic program of alveolar soft part sarcoma. Nat Commun 2023; 14:1957. [PMID: 37029109 PMCID: PMC10082046 DOI: 10.1038/s41467-023-37049-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/01/2023] [Indexed: 04/09/2023] Open
Abstract
Alveolar soft part sarcoma (ASPS) is a soft part malignancy affecting adolescents and young adults. ASPS is characterized by a highly integrated vascular network, and its high metastatic potential indicates the importance of ASPS's prominent angiogenic activity. Here, we find that the expression of ASPSCR1::TFE3, the fusion transcription factor causatively associated with ASPS, is dispensable for in vitro tumor maintenance; however, it is required for in vivo tumor development via angiogenesis. ASPSCR1::TFE3 is frequently associated with super-enhancers (SEs) upon its DNA binding, and the loss of its expression induces SE-distribution dynamic modification related to genes belonging to the angiogenesis pathway. Using epigenomic CRISPR/dCas9 screening, we identify Pdgfb, Rab27a, Sytl2, and Vwf as critical targets associated with reduced enhancer activities due to the ASPSCR1::TFE3 loss. Upregulation of Rab27a and Sytl2 promotes angiogenic factor-trafficking to facilitate ASPS vascular network construction. ASPSCR1::TFE3 thus orchestrates higher ordered angiogenesis via modulating the SE activity.
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Affiliation(s)
- Miwa Tanaka
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan.
- Department of Experimental Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan.
- Project for Cancer Epigenomics, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan.
| | - Surachada Chuaychob
- Department of Micro Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Mizuki Homme
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
- Division of Cell Biology, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yukari Yamazaki
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Experimental Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Ruyin Lyu
- Department of Micro Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Kyoko Yamashita
- Division of Pathology, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Keisuke Ae
- Department of Orthopedic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Seiichi Matsumoto
- Department of Orthopedic Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kohei Kumegawa
- Project for Cancer Epigenomics, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Reo Maruyama
- Project for Cancer Epigenomics, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Wei Qu
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Ryuji Yokokawa
- Department of Micro Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Takuro Nakamura
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan.
- Department of Experimental Pathology, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan.
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11
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Lu L, Wang S, Shen H, Zhang F, Ma F, Shi Y, Ning Y. Case Report: A case of COL1A1–PDGFB fusion uterine sarcoma at cervix and insights into the clinical management of rare uterine sarcoma. Front Oncol 2023; 13:1108586. [PMID: 36994196 PMCID: PMC10042132 DOI: 10.3389/fonc.2023.1108586] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 02/13/2023] [Indexed: 03/15/2023] Open
Abstract
COL1A1–PDGFB gene fusion uterine sarcoma is an especially rare malignant mesenchymal tumor that was previously classified as an undifferentiated uterine sarcoma due to the lack of specific features of differentiation. Till now, only five cases have been reported, and here we presented another case recently diagnosed in a Chinese woman who had vaginal bleeding. She presented with a cervical mass at the anterior lip of the cervix invading the vagina and was treated with laparoscopic total hysterectomy plus bilateral salpingo-oophorectomy (TH+BSO) and partial vaginal wall resection with the final pathology of COL1A1–PDGFB fusion uterine sarcoma. Our aim is to emphasize the importance of differential diagnosis of this rare tumor, as early precise diagnosis may allow patients to benefit from the targeted therapy imatinib. This article also serves as further clinical evidence of this disease, serving to increase clinical awareness of this rare sarcoma to avoid misdiagnosis.
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Affiliation(s)
- Linghui Lu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Shunni Wang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Haoran Shen
- Department of Gynecological Oncology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Feiran Zhang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Fenghua Ma
- Department of Radiology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yue Shi
- Department of Gynecological Oncology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yan Ning
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
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12
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Panwar V, Liu Y, Gwin K, Chen H. COL1A1-PDGFB Fusion Associated Fibrosarcoma of the Uterine Corpus: A Case Report and Literature Review. Int J Gynecol Pathol 2023; 42:143-146. [PMID: 36729934 DOI: 10.1097/pgp.0000000000000850] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Uterine collagen type 1 alpha 1 (COL1A1) and platelet-derived growth factor beta chain (PDGFB) fusion associated fibrosarcoma is a recently described entity characterized by a specific translocation t(17;22) (q22;q13) leading to the formation of COL1A1-PDGFB fusion transcripts that are typically associated with dermatofibrosarcoma protuberans. So far, only 4 cases of COL1A1-PDGFB fusion associated fibrosarcoma involving the female reproductive system have been reported in the literature. All cases showed strong diffuse expression of CD34. COL1A1-PDGFB fusion associated fibrosarcomas are aggressive tumors with a propensity for chemotherapy resistance and a poor prognosis. We are reporting the fifth case of a uterine COL1A1-PDGFB fusion associated fibrosarcoma. A 58-yr-old female presented with a large uterine mass with extension into bilateral pelvic sidewalls, mesentery of rectosigmoid colon and the vagina. A hysterectomy, bilateral salpingo-oophorectomy, and tumor debulking procedure was performed. Microscopic evaluation revealed a mitotically active cellular spindle cell neoplasm with focal osteoclast like giant cells, myxoid changes and necrosis. CD34 was diffusely and strongly positive throughout the tumor. Next-generation sequencing showed presence of the COL1A1-PDGFB fusion. The patient was treated with multiple chemotherapy regimens, however, progressed under therapy with worsening symptoms and development of extensive pelvic disease. She died of disease 13 mo after the initial diagnosis. In summary, uterine COL1A1-PDGFB fusion associated fibrosarcomas are rare tumors with aggressive clinical behavior that need to be considered in the differential diagnosis of CD34-positive uterine spindle cell neoplasms. Novel treatment options may include imatinib, a tyrosine kinase inhibitor used for treatment of advanced and unresectable dermatofibrosarcoma protuberans that was given in 1 uterine sarcoma case and showed promising initial response.
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Affiliation(s)
- Vandana Panwar
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas
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13
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Bone and soft tissue tumors: clinicoradiologic-pathologic molecular-genetic correlation of novel fusion spindled, targetable-ovoid, giant-cell-rich, and round cell sarcomas. Skeletal Radiol 2023; 52:517-540. [PMID: 36542130 DOI: 10.1007/s00256-022-04244-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND New entities in the classification of bone and soft tissue tumors have been identified by use of advanced molecular-genetic techniques, including next-generation sequencing. Clinicoradiologic and pathologic correlation supports diagnostic classification. METHODS Tumors from four morphologically grouped areas are selected to enhance diagnosis and awareness among the multidisciplinary team. These include select round cell tumors, spindle cell tumors, targetable tyrosine kinase/RAS::MAPK pathway-ovoid (epithelioid to spindled) tumors, and giant-cell-rich tumors of bone and soft tissue. RESULTS Round cell tumors of bone and soft tissue include prototypical Ewing sarcoma, newer sarcomas with BCOR genetic alteration and CIC-rearranged, as well as updates on FUS/EWSR1::NFATc2, an EWSR1 non-ETS tumor that is solid with additional amplified hybridization signal pattern of EWSR1. This FUS/EWSR1::NFATc2 fusion has now been observed in seemingly benign to low-grade intraosseous vascular-rich and simple (unicameral) bone cyst tumors. Select spindle cell tumors of bone and soft tissue include rhabdomyosarcoma with FUS/EWSR1::TFCP2, an intraosseous high-grade spindle cell tumor without matrix. Targetable tyrosine-kinase or RAS::MAPK pathway-tumors of bone and soft tissue include NTRK, ALK, BRAF, RAF1, RET, FGFR1, ABL1, EGFR, PDGFB, and MET with variable ovoid myopericytic to spindled pleomorphic features and reproducible clinicopathologic and radiologic clues to their diagnosis. Giant-cell-rich tumors of bone, joint, and soft tissue are now respectively characterized by H3F3A mutation, CSF1 rearrangement (targetable), and HMGA2::NCOR2 fusion. CONCLUSION This article is an update for radiologists, oncologists, surgeons, and pathologists to recognize these novel ovoid, spindled, giant-cell-rich, and round cell tumors, for optimal diagnostic classification and multidisciplinary team patient care.
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Key Words
- ALK, NTRK, BRAF, RAF1, RET, FGFR1, ABL1, EGFR, MET, PDGFB fusions, tyrosine-kinase inhibitor
- Bone, joint, soft tissue giant cell tumors with H3F3A-mutation, CSF1-rearrangement, HMGA2::NCOR2 fusion
- Clinical, pathology, radiology
- EWSR1, CIC, BCOR, FUS/EWSR1::NFATc2, bone cyst, vascular
- Intraosseous rhabdomyosarcoma EWSR1/FUS::TFCP2
- Novel fusion sarcoma
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14
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Dermawan JK, Villafania L, Bale T, Singer S, D’Angelo SP, Tap WD, Antonescu CR. TRAF7-mutated Fibromyxoid Spindle Cell Tumors Are Associated With an Aggressive Clinical Course and Harbor an Undifferentiated Sarcoma Methylation Signature: A Molecular and Clinicopathologic Study of 3 Cases. Am J Surg Pathol 2023; 47:270-277. [PMID: 36395468 PMCID: PMC9840690 DOI: 10.1097/pas.0000000000001997] [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: 11/19/2022]
Abstract
TRAF7 somatic mutations are rare and have been reported in meningiomas, intraneural perineuriomas, and mesotheliomas. Triggered by an index case of an unclassified low-grade mesenchymal tumor with TRAF7 mutation as the only genetic alteration, we searched our files and identified 2 additional cases with similar features. The tumors arose in 2 females and 1 male, aged 63 to 75 years old (median: 67 y). They were infiltrative deep soft tissue masses involving the shoulder, chest wall, and thigh, measuring 7.0 to 9.1 cm in greatest dimensions. One tumor was locally aggressive, and 2 were associated with lung and bone metastases. The tumors displayed alternating fibrous and myxoid stroma with mild to moderate cellularity and consisted of uniform spindle cells with open chromatin, inconspicuous nucleoli and scant cytoplasm. Significant mitotic activity or necrosis were not present. However, the metastatic tumor of 1 case showed an epithelioid morphology and brisk mitotic activity. Immunohistochemically, the tumors showed nonspecific and focal smooth muscle actin or CD34 expression. By DNA sequencing, all 3 cases harbored TRAF7 missense mutations involving the C-terminal WD40 domains as the only somatic mutations, showed nonrecurrent focal copy number alterations, and were negative for gene fusions by targeted RNA sequencing. On methylation profiling, the tumors clustered with the undifferentiated sarcoma and myxofibrosarcoma methylation classes and were distinct from morphologic mimics. On follow-up (5 to 36 mo), 2 patients died of disease following aggressive chemotherapeutic regimens. We describe a novel TRAF7- mutated mesenchymal tumor characterized by aggressive clinical behavior despite the histologic appearance of a low-grade fibromyxoid spindle cell tumor.
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Affiliation(s)
- Josephine K. Dermawan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Liliana Villafania
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tejus Bale
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samuel Singer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sandra P. D’Angelo
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - William D. Tap
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cristina R. Antonescu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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15
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Henry OS, Platoff R, Cerniglia KS, Batchu S, Goodwin BJ, Sandilos G, Adams A, Hong YK. Tyrosine kinase inhibitors versus radiation therapy in unresectable dermatofibrosarcoma protuberans (DFSP): A narrative systematic review. Am J Surg 2023; 225:268-274. [PMID: 36184329 DOI: 10.1016/j.amjsurg.2022.09.040] [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: 07/29/2022] [Revised: 09/18/2022] [Accepted: 09/20/2022] [Indexed: 11/20/2022]
Abstract
BACKGROUND In unresectable dermatofibrosarcoma protuberans (DFSP), no clear guideline exists regarding the use of tyrosine kinase inhibitors (TKI) versus radiotherapy. This study reviews current literature regarding TKI and radiotherapy in unresectable DFSP. METHODS Following PROSPERO registration (CRD42021232508), a systematic literature search was performed including all studies reporting clinical results of TKI and/or radiotherapy in the treatment of unresectable DFSP. A narrative synthesis was used to compare patient characteristics, outcomes, and adverse effects. RESULTS Of 1345 screened studies, 14 were included for review. Patient age ranged 18-77 years and 55% were male. Radiotherapy patients exhibited lower grade disease than TKI patients. Overall clinical benefit following TKI ranged from 70% to 96%. Radiotherapy patients exhibited control or resolution on last follow-up in 90% of cases. Radiotherapy adverse effects were mild, while TKI adverse effects were more severe and managed with dose reduction. CONCLUSION TKI may be employed in unresectable DFSP of all histology types whereas radiation alone may be limited to low-grade and classic-type DFSP. TKI may cause more severe adverse effects compared to radiation alone.
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Affiliation(s)
- Owen S Henry
- Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Rebecca Platoff
- Department of Surgery, Cooper University Hospital, Camden, NJ, USA
| | | | - Sai Batchu
- Cooper Medical School of Rowan University, Camden, NJ, USA
| | | | | | - Amanda Adams
- Medical Library, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Young K Hong
- Department of Surgery, Cooper University Hospital, Camden, NJ, USA.
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16
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Anderson WJ, Fletcher CDM. Mesenchymal lesions of the breast. Histopathology 2023; 82:83-94. [PMID: 36482275 DOI: 10.1111/his.14810] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/23/2022] [Accepted: 08/28/2022] [Indexed: 12/13/2022]
Abstract
Mesenchymal lesions of the breast are a heterogeneous range of entities with diverse clinical, histological, and molecular features, as well as biological behaviour. Their morphologic overlap with non-mesenchymal lesions (such as metaplastic carcinoma and phyllodes tumour) and relative rarity also pose significant diagnostic challenges. In this review, we summarize the salient features of selected mesenchymal lesions of the breast, emphasizing those that are the most common and problematic. Vascular, fibroblastic/myofibroblastic, adipocytic, and smooth muscle lesions are each covered with regard to their clinicopathological features and differential diagnosis, while recent advances and the role of immunohistochemistry and molecular tests are also highlighted.
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Affiliation(s)
- William J Anderson
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher D M Fletcher
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
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17
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Blay JY, Duffaud F, George S, Maki RG, Penel N. Regorafenib for the Treatment of Sarcoma. Curr Treat Options Oncol 2022; 23:1477-1502. [PMID: 36178573 DOI: 10.1007/s11864-022-00990-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2022] [Indexed: 01/30/2023]
Abstract
OPINION STATEMENT Sarcomas are a rare group of tumors with many subtypes, conventionally classified into soft-tissue sarcomas and bone sarcomas. Chemotherapeutic regimens form the mainstay of systemic therapy but are not well defined beyond the first-line setting and clinical outcomes are variable. Tyrosine kinase inhibitors (TKIs), with a broad inhibition profile which have been shown to target tumor angiogenesis, have an established role in the treatment of sarcomas without characteristic driver alterations. One such TKI, regorafenib, has been evaluated in sarcomas and clinical data are discussed in this review. An overview of regorafenib data from five phase 2 and one phase 1b clinical trials in over 10 sarcoma subtypes (both soft-tissue and bone) in adult and pediatric patients is reviewed. Regorafenib demonstrated clinical benefit in patients with non-adipocytic soft-tissue sarcomas, osteosarcoma and Ewing sarcoma who had progressed on prior therapy. Patients with otherwise limited treatment options may therefore benefit from regorafenib therapy.
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Affiliation(s)
- Jean-Yves Blay
- Department of Medicine, Léon Bérard Center, Lyon, France.
| | - Florence Duffaud
- Medical Oncology Unit, La Timone University Hospital, Marseille, France.,Aix Marseille University (AMU), Marseille, France
| | - Suzanne George
- Dana-Farber Cancer Institute, Harvard Medical School, Cambridge, MA, USA
| | - Robert G Maki
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolas Penel
- Medical Oncology Department, Oscar Lambret Cancer Center and Lille University, Lille, France
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18
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Abstract
Dermatofibrosarcoma protuberans (DFSP) is a rare, locally aggressive dermal-based sarcoma. Metastatic potential is extremely low, primarily in the setting of fibrosarcomatous transformation. DFSP is characterized by a t(17;22) (q22;q13) translocation that results in active PDGFB signaling. Surgical resection with negative margins (typically including the underlying fascia) is the potentially curative treatment. Delayed wound closure should be considered for cases requiring extensive resection or tissue rearrangement. Tyrosine kinase inhibitors, such as imatinib, have shown response rates of 50% to 60% in patients with locally advanced or metastatic disease. Radiation can be useful for residual or recurrent diseases.
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19
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Isse HM, Sereke SG, Erem G. Myxoid Dermatofibrosarcoma Protuberans of the Scrotum: Rare Tumor in an Uncommon Location. Int Med Case Rep J 2022; 15:457-462. [PMID: 36061636 PMCID: PMC9438793 DOI: 10.2147/imcrj.s363320] [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: 04/11/2022] [Accepted: 08/10/2022] [Indexed: 11/23/2022] Open
Abstract
Background Case Presentation Conclusion
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Affiliation(s)
- Hamdi Mohamed Isse
- Department of Radiology and Radiotherapy, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
- Correspondence: Hamdi Mohamed Isse, Department of Radiology and Radiotherapy, Makerere University College of Health Sciences, Kampala, Uganda, Tel +256-701512600, Email
| | - Senai Goitom Sereke
- Department of Radiology and Radiotherapy, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Geoffrey Erem
- Department of Radiology and Radiotherapy, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
- Department of Radiology, Nsambya Hospital, Kampala, Uganda
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20
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Lee PH, Huang SC, Wu PS, Tai HC, Lee CH, Lee JC, Kao YC, Tsai JW, Hsieh TH, Li CF, Li WS, Liu TT, Su YL, Yu SC, Huang HY. Molecular Characterization of Dermatofibrosarcoma Protuberans: The Clinicopathologic Significance of Uncommon Fusion Gene Rearrangements and Their Diagnostic Importance in the Exclusively Subcutaneous and Circumscribed Lesions. Am J Surg Pathol 2022; 46:942-955. [PMID: 35034038 DOI: 10.1097/pas.0000000000001866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The clinicopathologic relevance of various gene rearrangements underlying dermatofibrosarcoma protuberans (DFSP) remains insufficiently characterized. In 188 DFSPs, we determined PDGFB, COL1A1, PDGFD, COL6A3, and EMILIN2 rearrangements by fluorescence in situ hybridization (FISH). The clinicopathologic significance of rearrangement types and factors related to recurrence and metastasis were statistically analyzed. In all, classic PDGFB rearrangement, cryptic COL1A1-PDGFB fusion, and PDGFD rearrangement were identified in 172 (91.4%), 8 (4.3%), and 8 (4.3%: 4 COL6A3-PDFGD, 4 EMILIN2-PDGFD) cases, respectively. In an index DFSP harboring the cryptic fusion, the COL1A1-PDGFB transcript was confirmed by both RNA sequencing and reverse transcription-polymerase chain reaction. In comparison with cases harboring classic PDGFB rearrangement, cryptic PDGFB-rearranged DFSPs usually exhibited higher 5'-COL1A1 copy numbers. In a combined reappraisal of published and current cases, COL6A3-PDGFD-positive DFSPs (n=16) predominated in females (n=14, 88%) and torso (n=14, 88%), especially the breast (n=7, 44%); EMILIN2-PDGFD-positive DFSPs (n=6) preferentially demonstrated near exclusively subcutaneous growth (n=5, 83%) and fibrosarcomatous transformation (n=5, 83%). In our cohort, local recurrence was related to fibrosarcomatous variant (P=0.029, odds ratio=3.478) and head and neck location (P=0.046, odds ratio=3.508). Distant metastasis only occurred in the fibrosarcomatous variant (9/73, 12.3%) but not in other cases. In conclusion, 8.6% of DFSPs are negative for PDGFB break-apart FISH, which, especially those with challenging subcutaneous and circumscribed manifestation, require complementary diagnosis by FISH assays targeting COL1A1 and PDGFD. The types of fusion gene rearrangements, head and neck location, and fibrosarcomatous transformation may account for clinicopathologic and prognostic variations in DFSPs and warrant future independent validation.
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Affiliation(s)
| | - Shih-Chiang Huang
- Department of Anatomic Pathology, Linkou Chang Gung Memorial Hospital, Chang Gung University, College of Medicine
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan
| | - Pao-Shu Wu
- Department of Pathology, MacKay Memorial Hospital
- Mackay Junior College of Medicine, Nursing, and Management
| | - Hui-Chun Tai
- Department of Pathology, Changhua Christian Hospital, Changhua
| | | | - Jen-Chieh Lee
- Department and Graduate Institute of Pathology, National Taiwan University Hospital, National Taiwan University College of Medicine
| | - Yu-Chien Kao
- Department of Pathology, Shuang Ho Hospital, Taipei Medical University
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University
| | - Jen-Wei Tsai
- Department of Pathology, E-DA Hospital, I-Shou University
| | - Tsung-Han Hsieh
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei
| | - Chien-Feng Li
- Department of Medical Research, Chi-Mei Medical Center
| | - Wan-Shan Li
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan
| | - Ting-Ting Liu
- Departments of Anatomical Pathology
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung
| | - Yu-Li Su
- Division of Medical Oncology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine
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21
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Fernández-Tabanera E, Melero-Fernández de Mera RM, Alonso J. CD44 In Sarcomas: A Comprehensive Review and Future Perspectives. Front Oncol 2022; 12:909450. [PMID: 35785191 PMCID: PMC9247467 DOI: 10.3389/fonc.2022.909450] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/02/2022] [Indexed: 12/16/2022] Open
Abstract
It is widely accepted that the tumor microenvironment, particularly the extracellular matrix, plays an essential role in the development of tumors through the interaction with specific protein-membrane receptors. One of the most relevant proteins in this context is the transmembrane protein CD44. The role of CD44 in tumor progression, invasion, and metastasis has been well established in many cancers, although a comprehensive review concerning its role in sarcomas has not been published. CD44 is overexpressed in most sarcomas and several in vitro and in vivo experiments have shown a direct effect on tumor progression, dissemination, and drug resistance. Moreover, CD44 has been revealed as a useful marker for prognostic and diagnostic (CD44v6 isoform) in osteosarcoma. Besides, some innovative treatments such as HA-functionalized liposomes therapy have become an excellent CD44-mediated intracellular delivery system for osteosarcoma. Unfortunately, the reduced number of studies deciphering the prognostic/diagnostic value of CD44 in other sarcoma subgroups, neither than osteosarcoma, in addition to the low number of patients involved in those studies, have produced inconclusive results. In this review, we have gone through the information available on the role of CD44 in the development, maintenance, and progression of sarcomas, analyzing their implications at the prognostic, therapeutic, and mechanistic levels. Moreover, we illustrate how research involving the specific role of CD44 in the different sarcoma subgroups could suppose a chance to advance towards a more innovative perspective for novel therapies and future clinical trials.
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Affiliation(s)
- Enrique Fernández-Tabanera
- Unidad de Tumores Sólidos Infantiles, Instituto de Investigación de Enfermedades Raras (IIER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III (U758; CB06/07/1009; CIBERER-ISCIII), Madrid, Spain
- Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Raquel M. Melero-Fernández de Mera
- Unidad de Tumores Sólidos Infantiles, Instituto de Investigación de Enfermedades Raras (IIER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III (U758; CB06/07/1009; CIBERER-ISCIII), Madrid, Spain
| | - Javier Alonso
- Unidad de Tumores Sólidos Infantiles, Instituto de Investigación de Enfermedades Raras (IIER), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III (U758; CB06/07/1009; CIBERER-ISCIII), Madrid, Spain
- *Correspondence: Javier Alonso,
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22
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Croce S, Perret R, Le Loarer F. Update on Mesenchymal Lesions of the Lower Female Genital Tract. Surg Pathol Clin 2022; 15:341-367. [PMID: 35715165 DOI: 10.1016/j.path.2022.02.009] [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] [Indexed: 06/15/2023]
Abstract
This article provides an update of the recent developments in mesenchymal tumors of lower genital tract. We focus on the characterization of recurrent molecular events in certain genital stromal tumors, for instance angiomyofibroblastomas and superficial myofibroblastomas. Moreover, fusions involving Tyrosine-kinases receptors (NTRK, FRFR1, RET, COL1A1-PDGFB) have been demonstrated in an emerging group of mesenchymal tumors characterized by a fibrosarcoma-like morphology and a predilection for uterine cervix of premenopausal women. We also cover the topic of smooth muscle tumors of the lower genital tract, which can be now classified using the same diagnostic criteria than their uterine counterpart..
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Affiliation(s)
- Sabrina Croce
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France.
| | - Raul Perret
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France
| | - François Le Loarer
- Biopathology Department, Anticancer Center, Institut Bergonié, Bordeaux, France; INSERM U 1218, Action Unit, Bordeaux, France; University of Bordeaux, Talence, France
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23
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Peng C, Jian X, Xie Y, Li L, Ouyang J, Tang L, Zhang X, Su J, Zhao S, Liu H, Yin M, Wu D, Wan M, Xie L, Chen X. Genomic alterations of dermatofibrosarcoma protuberans revealed by whole-genome sequencing. Br J Dermatol 2022; 186:997-1009. [PMID: 35441365 PMCID: PMC9325047 DOI: 10.1111/bjd.20976] [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: 01/29/2021] [Revised: 12/18/2021] [Accepted: 12/30/2021] [Indexed: 11/29/2022]
Abstract
Background Dermatofibrosarcoma protuberans (DFSP) is a rare and marginal cutaneous sarcoma of intermediate‐grade malignancy, for which the genomic landscape remains unclear. Understanding the landscape of DFSP will help to further classify the genomic pathway of malignant development in soft tissue. Objectives To identify the comprehensive molecular pathogenesis of DFSP. Methods In this study, the comprehensive genomic features, with 53 tumour‐normal pairs of DFSP, were revealed by whole‐genome sequencing. Results The mutational signature 1 (C > T mutation at CpG dinucleotides) is featured in DFSP, resulting in higher mutations in DNA replication. Interestingly, the recurrence of DFSP is correlated with low tumour mutation burden. Novel mutation genes in DFSP were identified, including MUC4/6, KMT2C and BRCA1, and subsequently, three molecular subtypes of DFSP were classified on the basis of MUC4 and MUC6 mutations. Various structural aberrations including genomic rearrangements were identified in DSFPs, particularly in 17q and 22q, which cause oncogene amplification (AKT1, SPHK1, COL1A1, PDGFβ) or tumour suppressor deletion (CDKN2A/B). In addition to gene fusion of COL1A1‐PDGFβ [t(17;22)], we identified gene fusion of SLC2A5‐BTBD7 [t(1;14)] in DFSP through whole‐genome sequencing, and verified it experimentally. Enrichment analysis of altered molecules revealed that DNA repair, cell cycle, phosphoinositide 3‐kinase and Janus kinase pathways were primarily involved in DFSP. Conclusions This is the first large‐scale whole‐genome sequencing for DFSP, and our findings describe the comprehensive genomic landscape, highlighting the molecular complexity and genomic aberrations of DFSP. Our findings also provide novel potential diagnostic and therapeutic targets for this disease. What is already known about this topic?Chromosomal translocation between chromosome 17 and chromosome 22 is the main feature in the pathogenesis of dermatofibrosarcoma protuberans (DFSP).
What does this study add?We describe the comprehensive genomic landscape of DFSP, highlighting the molecular complexity and genomic aberrations. Our findings provide novel potential diagnostic and therapeutic targets for this disease.
What is the translational message?Our study revealed novel molecular subtypes of DFSP based on genetic mutations, which benefits precision diagnosis. We also found oncogene amplification, including AKT1 and SPHK1, which provides novel potential target molecules for further DFSP treatment. In addition to gene fusion of COL1A1‐PDGFβ, we identified a novel gene fusion of SLC2A5‐BTBD7 in DFSP, which is a novel potential diagnostic and therapeutic target for this disease.
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Affiliation(s)
- Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Xingxing Jian
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China.,Shanghai-MOST Key Laboratory of Health and Disease Genomics, Institute for Genome and Bioinformatics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Yang Xie
- Department of Dermatology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lingfeng Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Jian Ouyang
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Institute for Genome and Bioinformatics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Ling Tang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Xu Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Shuang Zhao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Mingzhu Yin
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
| | - Dan Wu
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Institute for Genome and Bioinformatics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Miaojian Wan
- Department of Dermatology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lu Xie
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Institute for Genome and Bioinformatics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China.,Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, Hunan, China
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24
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Porrino J, Al-Dasuqi K, Irshaid L, Wang A, Kani K, Haims A, Maloney E. Update of pediatric soft tissue tumors with review of conventional MRI appearance-part 1: tumor-like lesions, adipocytic tumors, fibroblastic and myofibroblastic tumors, and perivascular tumors. Skeletal Radiol 2022; 51:477-504. [PMID: 34191084 DOI: 10.1007/s00256-021-03836-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/22/2021] [Accepted: 06/02/2021] [Indexed: 02/02/2023]
Abstract
There are numerous soft tissue tumors and tumor-like conditions in the pediatric population. Magnetic resonance imaging is the most useful modality for imaging these lesions. Although certain soft tissue lesions exhibit magnetic resonance features characteristic of a specific diagnosis, most lesions are indeterminate, and a biopsy is necessary for diagnosis. We provide a detailed update of soft tissue tumors and tumor-like conditions that occur in the pediatric population, emphasizing each lesion's conventional magnetic resonance imaging appearance, using the recently released 5th edition of the World Health Organization Classification of Soft Tissue and Bone Tumors as a guide. In part one of this review, pediatric tumor-like lesions, adipocytic tumors, fibroblastic and myofibroblastic tumors, and perivascular tumors are discussed. In part two, vascular lesions, fibrohistiocytic tumors, muscle tumors, peripheral nerve sheath tumors, tumors of uncertain differentiation, and undifferentiated small round cell sarcomas are reviewed. Per the convention of the WHO, these lesions involve the connective, subcutaneous, and other non-parenchymatous-organ soft tissues, as well as the peripheral and autonomic nervous system.
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Affiliation(s)
- Jack Porrino
- Yale Radiology and Biomedical Imaging, 330 Cedar Street, New Haven, CT, 06520, USA.
| | - Khalid Al-Dasuqi
- Yale Radiology and Biomedical Imaging, 330 Cedar Street, New Haven, CT, 06520, USA
| | - Lina Irshaid
- Yale School of Medicine Department of Pathology, 333 Cedar Street, New Haven, CT, 06520, USA
| | - Annie Wang
- Yale Radiology and Biomedical Imaging, 330 Cedar Street, New Haven, CT, 06520, USA
| | - Kimia Kani
- Department of Radiology, University of Maryland Medical Center, 22 S Greene St, Baltimore, MD, 21201, USA
| | - Andrew Haims
- Yale Radiology and Biomedical Imaging, 330 Cedar Street, New Haven, CT, 06520, USA
| | - Ezekiel Maloney
- Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
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25
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Neumann NM, LeBoit PE, Cohen JN. Superficial Angiomyxomas Frequently Demonstrate Loss of Protein Kinase A Regulatory Subunit 1 Alpha Expression: Immunohistochemical Analysis of 29 Cases and Cutaneous Myxoid Neoplasms With Histopathologic Overlap. Am J Surg Pathol 2022; 46:226-232. [PMID: 34889853 DOI: 10.1097/pas.0000000000001851] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Superficial angiomyxomas (SAMs) are benign cutaneous tumors that arise de novo and in the setting of the Carney complex (CC), an autosomal dominant disease with several cutaneous manifestations including lentigines and pigmented epithelioid melanocytomas. Although most SAM do not pose a diagnostic challenge, a subset can demonstrate histopathologic overlap with other myxoid tumors that arise in the skin and subcutis. Traditional immunohistochemical markers are of limited utility when discriminating SAM from histopathologic mimics. Since protein kinase A regulatory subunit 1 alpha (PRKAR1A) genetic alterations underlie most CC cases, we investigated whether SAM demonstrate loss of PRKAR1A protein expression by immunohistochemistry. In our series, 29 SAM, 26 myxofibrosarcoma, 5 myxoid dermatofibrosarcoma protuberans, 11 superficial acral fibromyxomas, and 18 digital mucous cysts were characterized. Of the 29 SAM examined in this study, 1 was associated with documented CC in a 5-year-old girl. SAM tended to arise in adults (mean 49.7 y; range: 5 to 87 y). Loss of PRKAR1A was seen in 55.2% of cases (16/29) and had a male predilection (87.5%, 12/16). PRKAR1A-inactivated SAM demonstrated significant nuclear enlargement (100%, 16/16 vs. 23.1%, 3/13), multinucleation (81.3%, 13/16 vs. 23.1%, 3/13), and presence of neutrophils (43.8%, 7/16 vs. 0%, 0/13). In contrast, PRKAR1A was retained in all cases of myxofibrosarcoma (100%, 26/26), myxoid dermatofibrosarcoma protuberans (100%, 5/5), superficial acral fibromyxomas (100%, 11/11), and digital mucous cyst (100%, 18/18). Taken together, PRKAR1A loss by immunohistochemistry can be used as an adjunctive assay to support the diagnosis of SAM given the high specificity of this staining pattern compared with histopathologic mimics.
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Affiliation(s)
| | - Philip E LeBoit
- Departments of Pathology
- Dermatology
- Helen K. Diller Cancer Center, University of California, San Francisco, CA
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26
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Davis JL, Al‐Ibraheemi A, Rudzinski ER, Surrey LF. Mesenchymal neoplasms with NTRK and other kinase gene alterations. Histopathology 2021; 80:4-18. [DOI: 10.1111/his.14443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 12/20/2022]
Affiliation(s)
- Jessica L Davis
- Department of Pathology Oregon Health & Science University Portland OregonUSA
| | - Alyaa Al‐Ibraheemi
- Department of Pathology Boston Children’s Hospital Boston MassachusettsUSA
| | - Erin R Rudzinski
- Department of Laboratories Seattle Children’s Hospital Seattle WashingtonUSA
| | - Lea F Surrey
- Department of Pathology and Laboratory Medicine The Children’s Hospital of Philadelphia Philadelphia Pennsylvania USA
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27
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Papke DJ, Hornick JL. Recent advances in the diagnosis, classification and molecular pathogenesis of cutaneous mesenchymal neoplasms. Histopathology 2021; 80:216-232. [DOI: 10.1111/his.14450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 12/01/2022]
Affiliation(s)
- D J Papke
- Department of Pathology Brigham and Women’s Hospital and Harvard Medical School Boston MA USA
| | - J L Hornick
- Department of Pathology Brigham and Women’s Hospital and Harvard Medical School Boston MA USA
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28
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Lu D, Yang N, Wang S, Liu W, Zhang D, Wang J, Huang B, Li X. Identifying the Predictive Role of Oxidative Stress Genes in the Prognosis of Glioma Patients. Med Sci Monit 2021; 27:e934161. [PMID: 34836934 PMCID: PMC8634738 DOI: 10.12659/msm.934161] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Gliomas are primary aggressive brain tumors with poor prognoses. Oxidative stress plays a crucial role in the tumorigenesis and drug resistance of gliomas. The aim of the present study was to use integrated bioinformatics analyses to evaluate the prognostic value of oxidative stress-related genes (OSRGs) in glioma. Material/Methods Disease- and prognosis-associated OSRGs were identified using microarray and clinical data from the Chinese Glioma Genome Atlas database. Functional enrichment, gene-gene interaction, protein-protein interaction, and survival analyses were performed in screened OSRGs. The protein expression was validated by the Human Protein Atlas database. A risk score model was constructed and verified through Cox regression, receiver operating characteristic curve, principal component, and stratified analyses. The Cancer Genome Atlas (TCGA) database was used for external validation. A nomogram was constructed to facilitate the clinical application. Results Twenty-one disease-associated and 14 prognosis-associated OSRGs were identified. Enrichment analyses indicated that these signature OSRGs were involved in tumorigenesis and drug resistance of glioma. The risk score model demonstrated a significant difference in overall survival between the high- and low-risk groups. The area under the curve and hazard ratio (1.296) revealed the independent prognostic value of the model. The model exhibited good predictive efficacy in the TCGA cohort. A clinical nomogram was constructed to calculate survival rates in glioma patients at 1, 3, and 5 years. Conclusions Our comprehensive study indicated that OSRGs were valuable for prognosis prediction in glioma, which provides a novel insight into the relationship between oxidative stress and glioma and a potential therapeutic strategy for glioma patients.
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Affiliation(s)
- Di Lu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Ning Yang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Shuai Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Wenyu Liu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Di Zhang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland).,Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China (mainland).,Key Laboratory of Brain Function Remodeling, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
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29
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Campbell K, Bridge JA, DiMaio D, Wilson J, Shalin SC, Gardner JM. Dermatofibrosarcoma protuberans with platelet-derived growth factor-D rearrangement; two cases with morphologically distinct presentations. J Cutan Pathol 2021; 49:274-277. [PMID: 34628665 DOI: 10.1111/cup.14148] [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] [Received: 05/24/2021] [Revised: 09/09/2021] [Accepted: 10/05/2021] [Indexed: 12/31/2022]
Abstract
Dermatofibrosarcoma protuberans (DFSP) is a mesenchymal neoplasm that is usually located in the dermis or subcutis and is locally aggressive. Rarely, these lesions may undergo fibrosarcomatous transformation, which is thought to increase their metastatic potential. DFSP is classically associated with a 17;22 translocation (or ring chromosome thereof) resulting in fusion of the COL1A1 and PDGFB genes. However, variant fusions involving PDGFD have been recently reported. Herein, we present two morphologically diverse cases of DFSP with PDGFD rearrangement. Case 1 is a 68-year-old female with a left dorsal foot lesion. Morphologically, the lesion is unusual as it is a well-circumscribed, hypercellular, subcutaneous nodule with uniform CD34-positive spindle cells arranged in a herringbone pattern without storiform arrangement or "honeycombing" fat entrapment. It was diagnosed as pure fibrosarcomatous DFSP. Case 2 is a 37-year-old male with a right supra-auricular lesion. Morphologically, the lesion displays classic DFSP features including bland CD34-positive spindle cells with storiform growth, fat entrapment, and infiltrative borders. Both lesions were negative for COL1A1-PDGFB fusion but positive for PDGFD rearrangement by fluorescence in situ hybridization (FISH) analysis. FISH testing for PDGFD rearrangement should be performed in cases where there is a high suspicion for DFSP but initial studies for COL1A1-PDGFB are negative.
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Affiliation(s)
- Katelynn Campbell
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Julia A Bridge
- Department of Cytogenetics and Fluorescence In-Situ Hybridization, ProPath, Dallas, Texas, USA
| | - Dominick DiMaio
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Janice Wilson
- Department of Dermatology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Sara C Shalin
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jerad M Gardner
- Department of Anatomic and Clinical Pathology, Geisinger Medical Laboratories, Danville, Pennsylvania, USA
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30
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Rasheed AA, Barwad A, Dhamija E, Garg R, Pandey R, Shamim SA, Arun Raj ST, Rastogi S. Advanced dermatofibrosarcoma protuberans: an updated analysis of cases from an Indian sarcoma clinic. Future Sci OA 2021; 7:FSO743. [PMID: 34737884 PMCID: PMC8558865 DOI: 10.2144/fsoa-2020-0198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
AIM Dermatofibrosarcoma protuberans (DFSP) accounts for less than 2% of all soft-tissue sarcomas. PATIENTS & METHODS We retrospectively reviewed our database for patients with locally advanced or metastatic DFSP who had presented to our clinic between January 2016 and January 2020. RESULTS We identified a total of 14 patients, of whom ten had sarcomatous transformation. Eleven cases had metastatic disease and three were locally advanced. The initial partial response rate to first-line imatinib was 76.9% and the overall median progression-free survival on imatinib was 15 months. CONCLUSION We had a high proportion of patients with sarcomatous transformation, in contrast to their relative rarity in the West. While most patients had initial good responses to imatinib, second-line therapies were not as effective.
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Affiliation(s)
- Azgar A Rasheed
- Department of Medical Oncology, BRA-IRCH, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Adarsh Barwad
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Ekta Dhamija
- Department of Radiodiagnosis, BRA-IRCH, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Rakesh Garg
- Department of Onco-Anaesthesia & Palliative Medicine, BRA-IRCH, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Rambha Pandey
- Department of Radiation Oncology, BRA-IRCH, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Shamim A Shamim
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sreedharan T Arun Raj
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sameer Rastogi
- Department of Medical Oncology, BRA-IRCH, All India Institute of Medical Sciences, New Delhi, 110029, India
- Author for correspondence:
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31
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Zheng F, Kelly MR, Ramms DJ, Heintschel ML, Tao K, Tutuncuoglu B, Lee JJ, Ono K, Foussard H, Chen M, Herrington KA, Silva E, Liu S, Chen J, Churas C, Wilson N, Kratz A, Pillich RT, Patel DN, Park J, Kuenzi B, Yu MK, Licon K, Pratt D, Kreisberg JF, Kim M, Swaney DL, Nan X, Fraley SI, Gutkind JS, Krogan NJ, Ideker T. Interpretation of cancer mutations using a multiscale map of protein systems. Science 2021; 374:eabf3067. [PMID: 34591613 PMCID: PMC9126298 DOI: 10.1126/science.abf3067] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A major goal of cancer research is to understand how mutations distributed across diverse genes affect common cellular systems, including multiprotein complexes and assemblies. Two challenges—how to comprehensively map such systems and how to identify which are under mutational selection—have hindered this understanding. Accordingly, we created a comprehensive map of cancer protein systems integrating both new and published multi-omic interaction data at multiple scales of analysis. We then developed a unified statistical model that pinpoints 395 specific systems under mutational selection across 13 cancer types. This map, called NeST (Nested Systems in Tumors), incorporates canonical processes and notable discoveries, including a PIK3CA-actomyosin complex that inhibits phosphatidylinositol 3-kinase signaling and recurrent mutations in collagen complexes that promote tumor proliferation. These systems can be used as clinical biomarkers and implicate a total of 548 genes in cancer evolution and progression. This work shows how disparate tumor mutations converge on protein assemblies at different scales.
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Affiliation(s)
- Fan Zheng
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Marcus R. Kelly
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Dana J. Ramms
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
- Department of Pharmacology, University of California San Diego, La Jolla, CA 92093, USA
| | - Marissa L. Heintschel
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Kai Tao
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA
- Center for Spatial Systems Biomedicine, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Beril Tutuncuoglu
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, CA 94158, USA
- The J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA, 94158, USA
| | - John J. Lee
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Keiichiro Ono
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Helene Foussard
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, CA 94158, USA
- The J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Michael Chen
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Kari A. Herrington
- Department of Biochemistry and Biophysics Center for Advanced Light Microscopy at UCSF, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Erica Silva
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Sophie Liu
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Jing Chen
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Christopher Churas
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Nicholas Wilson
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Anton Kratz
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Rudolf T. Pillich
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Devin N. Patel
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Jisoo Park
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Brent Kuenzi
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Michael K. Yu
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Katherine Licon
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Dexter Pratt
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Jason F. Kreisberg
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
| | - Minkyu Kim
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, CA 94158, USA
- The J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Danielle L. Swaney
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, CA 94158, USA
- The J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Xiaolin Nan
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR, 97239, USA
- Center for Spatial Systems Biomedicine, Oregon Health and Science University, Portland, OR, 97201, USA
- Knight Cancer Early Detection Advanced Research Center, Oregon Health and Science University, Portland, OR, 97201, USA
| | - Stephanie I. Fraley
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - J. Silvio Gutkind
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
- Department of Pharmacology, University of California San Diego, La Jolla, CA 92093, USA
| | - Nevan J. Krogan
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, CA 94158, USA
- The J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA, 94158, USA
| | - Trey Ideker
- Division of Genetics, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Cancer Cell Map Initiative (CCMI), La Jolla and San Francisco, CA, USA
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Xiong JX, Cai T, Hu L, Chen XL, Huang K, Chen AJ, Wang P. Risk factors related to postoperative recurrence of dermatofibrosarcoma protuberans: A retrospective study and literature review. World J Clin Cases 2021; 9:5442-5452. [PMID: 34307598 PMCID: PMC8281415 DOI: 10.12998/wjcc.v9.i20.5442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/20/2021] [Accepted: 05/19/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Dermatofibrosarcoma protuberans (DFSP) is a rare low-grade malignant soft tissue tumor characterized by rosette-like infiltrative growth. Postoperative recurrence of this tumor is very common.
AIM To evaluate the risk factors related to recurrence after wide local excision (WLE) of DFSP and to guide clinical diagnosis and treatment.
METHODS The medical records of 44 DFSP patients confirmed by pathology at our hospital from 2012 to 2019 were retrospectively reviewed. The relationship between clinical features, tumor characteristics, treatment, and recurrence risk were analyzed, and the possible risk factors for postoperative tumor recurrence were evaluated.
RESULTS There were 44 patients in total, including 21 males and 23 females. The median progression free survival was 36 mo (range, 1-240 mo). Twenty patients were treated for the first time, while 24 had previous treatment experience. Forty-two cases were followed for 25.76 ± 22.0 mo, among whom four (9.52%) experienced recurrence after WLE (rate was 9.52%). The recurrence rate in the recurrent group was higher than that in the patients with primary tumor (19.05% vs 0%, P = 0.028). Eighteen cases had a history of misdiagnosis (rate was 40.91%). The recurrence rate among patients with previous experience of misdiagnosis was significantly higher than in patients without (68% vs 36.84%, P = 0.04). The tumor diameter in patients with a history of treatment was larger than in patients treated for the first time (4.75 ± 0.70 cm vs 2.25 ± 0.36 cm, P = 0.004).
CONCLUSION To sum up, the clinical manifestations of DFSP are not specific and are easily misdiagnosed, thus commonly causing the recurrence of DFSP. After incomplete resection, the tumor may rapidly grow. Previous recurrence history may be a risk factor for postoperative recurrence, and tumor location may have an indirect effect on postoperative recurrence; however, we found no significant correlation between sex, age, course of the disease, or tumor size and postoperative recurrence.
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Affiliation(s)
- Jian-Xia Xiong
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Tao Cai
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Li Hu
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Xiao-Li Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Kun Huang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Ai-Jun Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Ping Wang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Chen Y, Shi YZ, Feng XH, Wang XT, He XL, Zhao M. Novel TNC-PDGFD fusion in fibrosarcomatous dermatofibrosarcoma protuberans: a case report. Diagn Pathol 2021; 16:63. [PMID: 34256767 PMCID: PMC8276425 DOI: 10.1186/s13000-021-01123-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/05/2021] [Indexed: 12/30/2022] Open
Abstract
Background Dermatofibrosarcoma protuberans (DFSP) is a superficial fibroblastic tumor characterized by high rate of local recurrence and low metastatic potential. Fibrosarcomatous transformation can rarely arise in DFSP either de novo or as recurrent, which represents a form of tumor progression and carries an increased risk of metastasis over classic DFSP. Cytogenetically, DFSP is characterized by a recurrent unbalanced chromosome translocation t (17;22)(q22;q13), leading to the formation of COL1A1-PDGFB fusion transcript that is present in more than 90% of cases. Alternative fusions involving the PDGFD with partners of COL6A3 or EMILIN2 have recently been documented in less than 2% of cases. Herein, we report a DFSP with fibrosarcomtous morphology harboring a novel TNC-PDGFD fusion. Case presentation A 54-year-old female presented with a slowly growing mass in the right thigh. Excision demonstrated a 2-cm ovoid, well-circumscribed, gray-white, mass. Microscopic examination revealed a partially encapsulated subcutaneous nodule without dermal connection. The neoplasm was composed of cellular and fairly uniform spindle cells with brisk mitoses, arranged in elongated fascicles and herringbone patterns, with focal collagenized stroma. The neoplastic cells were positive for CD34 and smooth muscle actin. Fluorescence in-situ hybridization analyses showed negative for COL1A1-PDGFB fusion as well as NTRK1/2/3 rearrangements. A subsequent RNA sequencing detected an in-frame fusion between exon 15 of TNC and exon 6 of PDGFD. This fusion was further confirmed by nested reverse transcription polymerase chain reaction amplification followed by Sanger sequencing. A diagnosis of fibrosarcomatous DFSP was rendered and the patient was in good status at a follow-up of 12 months after the operation. Conclusions We report a fibrosarcomatous DFSP with novel TNC-PDGFD fusion, which adds to the pathologic and genetic spectrum of PDGFD-rearranged DFSP.
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Affiliation(s)
- Yuan Chen
- Department of Pathology, Laboratory Medicine Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, 158 Shangtang Road, Gongshu District, Hangzhou, 310014, Zhejiang, China
| | - Ying-Zhou Shi
- Department of Pathology, Laboratory Medicine Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, 158 Shangtang Road, Gongshu District, Hangzhou, 310014, Zhejiang, China
| | - Xiao-He Feng
- Department of Pathology, Haining Central Hospital, Jiaxing, Zhejiang, China
| | - Xiao-Tong Wang
- Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu, China
| | - Xiang-Lei He
- Department of Pathology, Laboratory Medicine Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, 158 Shangtang Road, Gongshu District, Hangzhou, 310014, Zhejiang, China
| | - Ming Zhao
- Department of Pathology, Laboratory Medicine Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, 158 Shangtang Road, Gongshu District, Hangzhou, 310014, Zhejiang, China.
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Martínez-Trufero J, Cruz Jurado J, Gómez-Mateo MC, Bernabeu D, Floría LJ, Lavernia J, Sebio A, García Del Muro X, Álvarez R, Correa R, Hernández-León CN, Marquina G, Hindi N, Redondo A, Martínez V, Asencio JM, Mata C, Valverde Morales CM, Martin-Broto J. Uncommon and peculiar soft tissue sarcomas: Multidisciplinary review and practical recommendations for diagnosis and treatment. Spanish group for Sarcoma research (GEIS - GROUP). Part I. Cancer Treat Rev 2021; 99:102259. [PMID: 34311246 DOI: 10.1016/j.ctrv.2021.102259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/22/2022]
Affiliation(s)
| | - Josefina Cruz Jurado
- Hospital Universitario Canarias, Medical Oncology Department, Santa Cruz de Tenerife, Spain
| | | | - Daniel Bernabeu
- Hospital Universitario La Paz, Radiology Department, Madrid, Spain
| | - Luis Javier Floría
- Hospital Universitario Miguel Servet, Orthopedic and Traumatology Department, Zaragoza, Spain
| | - Javier Lavernia
- Instituto Valenciano de Oncología, Medical Oncology Department, Valencia, Spain
| | - Ana Sebio
- Hospital Universitario Santa Creu i Sant Pau, Medical Oncology Department, Barcelona, Spain
| | | | - Rosa Álvarez
- Hospital Universitario Gregorio Marañón, Medical Oncology Department, Madrid, Spain
| | - Raquel Correa
- Hospital Virgen de la Victoria, Radiation Oncology Department, Malaga, Spain
| | | | - Gloria Marquina
- Hospital Universitario Clínico San Carlos, Medical Oncology Department, Madrid, Spain
| | - Nadia Hindi
- University Hospital "Fundacion Jimenez Diaz" Madrid, Medical Oncology Department, Madrid, Research Institute FJD-UAM, Madrid (Spain), TBsarc, CITIUS III, Seville, Spain
| | - Andrés Redondo
- Hospital Universitario La Paz, Medical Oncology Department, Madrid, Spain
| | - Virginia Martínez
- Hospital Universitario La Paz, Medical Oncology Department, Madrid, Spain
| | | | - Cristina Mata
- Hospital Universitario Gregorio Marañón, Pediatric and Adolescent Hemato-oncology Department, Madrid, Spain
| | | | - Javier Martin-Broto
- University Hospital "Fundacion Jimenez Diaz" Madrid, Medical Oncology Department, Madrid, Research Institute FJD-UAM, Madrid (Spain), TBsarc, CITIUS III, Seville, Spain
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Braswell DS, Ayoubi N, Motaparthi K, Walker A. Dermatofibrosarcoma protuberans with features of giant cell fibroblastoma in an adult. J Cutan Pathol 2021; 47:317-320. [PMID: 32163628 DOI: 10.1111/cup.13601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/17/2019] [Accepted: 10/02/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Diana S Braswell
- Department of Dermatology, University of Florida College of Medicine, Gainesville, Florida
| | | | - Kiran Motaparthi
- Department of Dermatology, University of Florida College of Medicine, Gainesville, Florida
| | - Addie Walker
- Department of Dermatology, University of Florida College of Medicine, Gainesville, Florida
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Kambouri K, Chatzipantelis P, Foutzitzi S, Dimitriadou C, Aggelidou M, Giatromanolaki A, Deftereos S. Dermatofibrosarcoma protuberans in a child, that's why soft tissue lesions are not always innocent in children. Clin Case Rep 2021; 9:e04080. [PMID: 34084498 PMCID: PMC8142409 DOI: 10.1002/ccr3.4080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/14/2021] [Indexed: 11/18/2022] Open
Abstract
Pediatric soft tissue tumors should be always operated and sent for a biopsy.
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Affiliation(s)
- Katerina Kambouri
- Department of Pediatric SurgeryAlexandroupolis University HospitalDemocritus University of ThraceKomotiniGreece
| | - Paschalis Chatzipantelis
- Department of PathologyAlexandroupolis University HospitalDemocritus University of ThraceKomotiniGreece
| | - Soultana Foutzitzi
- Department of RadiologyAlexandroupolis University HospitalDemocritus University of ThraceAlexandroupolisGreece
| | - Chrysavgi Dimitriadou
- Department of Pediatric SurgeryAlexandroupolis University HospitalDemocritus University of ThraceKomotiniGreece
| | - Maria Aggelidou
- Department of Pediatric SurgeryAlexandroupolis University HospitalDemocritus University of ThraceKomotiniGreece
| | - Alexandra Giatromanolaki
- Department of PathologyAlexandroupolis University HospitalDemocritus University of ThraceKomotiniGreece
| | - Savas Deftereos
- Department of RadiologyAlexandroupolis University HospitalDemocritus University of ThraceAlexandroupolisGreece
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37
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Chunsik Im B, Li J, Kessete Afewerky H, Jiang X. Collagen Type I α-1 Promotes Malignant Glioma Cell Proliferation and Is Associated with Glioma Prognosis. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Collagen type I α-1 chain (COL1A1) is closely involved in the advancement of various tumors, yet the role of COL1A1 in the progression of glioma is not clear. Herein, we evaluated the effect of COL1A1 on glioma cell proliferation. The effect of COL1A1 on glioma cell proliferation
was assessed through overexpression or knockdown of COL1A1. The CCK-8 and colony formation assays, as well as immunohistochemistry (IHC) were used to detect COL1A1 expression in different glioma grades. U-87MG as well as U-251MG cells were stably-inserted with lentivirus containing COL1A1
through transfection, we additionally used qRT-PCR as well as Western blot assay to validate their overexpression efficiencies. COL1A1 mRNA and protein levels were upregulated in the high-grade glioma (HGG) compared to the low-grade glioma (LGG). COL1A1 IHC score was remarkably higher in HGG
than LGG. The staining index (SI) further showed that COL1A1 protein levels were higher in HGG than LGG. The Kaplan–Meier analysis showed that elevated COL1A1 mRNA levels were obviously correlated with lower overall survival (OS) and disease-free survival (DFS) for brain glioma patients.
COL1A1 mRNA and protein levels were markedly upregulated in human glioma cell lines when compared with brain astrocyte cell lines. The high expression level of COL1A1 facilitated glioma cell proliferation. COL1A1 knockdown remarkably inhibited glioma cell proliferation. Thus, this research
shows that COL1A1 promotes glioma cell proliferation and is closely related to glioma prognosis.
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Affiliation(s)
- Bruce Chunsik Im
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Junjun Li
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Henok Kessete Afewerky
- Department of Pathology and Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaobing Jiang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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38
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Danesi R, Fogli S, Indraccolo S, Del Re M, Dei Tos AP, Leoncini L, Antonuzzo L, Bonanno L, Guarneri V, Pierini A, Amunni G, Conte P. Druggable targets meet oncogenic drivers: opportunities and limitations of target-based classification of tumors and the role of Molecular Tumor Boards. ESMO Open 2021; 6:100040. [PMID: 33540286 PMCID: PMC7859305 DOI: 10.1016/j.esmoop.2020.100040] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/15/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
The therapeutic landscape of cancer is changing rapidly due to the growing number of approved drugs capable of targeting specific genetic alterations. This aspect, together with the development of noninvasive methods for the assessment of somatic mutations in the peripheral blood of patients, generated a growing interest toward a new tumor-agnostic classification system based on ‘predictive’ biomarkers. The current review article discusses this emerging alternative approach to the classification of cancer and its implications for the selection of treatments. It is suggested that different types of cancers sharing the same molecular profiles could benefit from the same targeted drugs. Although recent clinical trials have demonstrated that this approach cannot be generalized, there are also specific examples that demonstrate the clinical utility of this alternative vision. In this rapidly evolving scenario, a multidisciplinary approach managed by institutional Molecular Tumor Boards is fundamental to interpret the biological and clinical relevance of genetic alterations and the complexity of their relationship with treatment response. The identification of oncogenic drivers offers the opportunity to develop target-specific drugs. The inhibition of crucial pathways realizes the principle of druggable target to exploit cancer vulnerability. The approval of new anticancer agents based on target-based concept represents a paradigm shift in cancer therapy. However, only few drugs have been approved so far on an agnostic basis and the concept of biomarker cannot be generalized. Tumor Molecular Boards will have an increasing role in the identification of new therapeutic options in selected patients.
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Affiliation(s)
- R Danesi
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - S Fogli
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - S Indraccolo
- Molecular Oncology Unit, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - M Del Re
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - A P Dei Tos
- Department of Medicine, School of Medicine, University of Padua, Padua, Italy
| | - L Leoncini
- Department of Medical Biotechnology, Anatomic Pathology Division, University of Siena, Siena, Italy
| | - L Antonuzzo
- Medical Oncology Unit, Careggi University Hospital, Florence, Italy
| | - L Bonanno
- Medical Oncology 2, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy
| | - V Guarneri
- Medical Oncology 2, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy; Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - A Pierini
- Integrated Access, Roche, Monza, Italy
| | - G Amunni
- Institute for the Study, Prevention and Oncology Network (ISPRO), Florence, Italy.
| | - P Conte
- Medical Oncology 2, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy; Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
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39
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Burdett N, Bae S, Hamilton A, Desai J. The Role of Systemic Therapies in the Management of Soft Tissue Sarcoma. Sarcoma 2021. [DOI: 10.1007/978-981-15-9414-4_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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40
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Croce S, Hostein I, McCluggage WG. NTRK and other recently described kinase fusion positive uterine sarcomas: A review of a group of rare neoplasms. Genes Chromosomes Cancer 2020; 60:147-159. [PMID: 33099837 DOI: 10.1002/gcc.22910] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/21/2020] [Indexed: 12/11/2022] Open
Abstract
The landscape of uterine sarcomas has greatly expanded in recent years to include neoplasms with recurrent gene fusions, such as BCOR and YWHAE translocated high-grade endometrial stromal sarcomas. Sophisticated molecular techniques have also resulted in the description of "new" entities associated with recurrent kinase fusions involving NTRK and RET as well as COL1A1-PDGFB rearranged uterine sarcomas. These rare neoplasms will be discussed in this review, highlighting that some of the underlying molecular events are clinically actionable and potentially susceptible to targeted therapy. While relatively few of these neoplasms have been described to date, likely being previously lumped under the spectrum of undifferentiated uterine sarcoma, the number of cases will expand in the future given their recognition and the increasing availability of molecular testing. These neoplasms have overlapping morphology (often with a "fibrosarcoma-like" appearance) and immunohistochemical features, and are characterized by variable clinical outcomes. Although immunohistochemistry may assist in some cases, a definitive subclassification requires confirmatory molecular studies. As these molecular assays may not be routinely available in most laboratories, referral to reference centers may be needed. In order to assist the pathologist, we suggest a diagnostic algorithm for routine practice when dealing with a malignant or potentially malignant uterine spindle cell neoplasm.
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Affiliation(s)
- Sabrina Croce
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Center, Bordeaux, France
| | - Isabelle Hostein
- Department of Biopathology, Institut Bergonié, Comprehensive Cancer Center, Bordeaux, France
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, UK
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41
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CircRNAs and Fusion-circRNAs in cancer: New players in an old game. Cell Signal 2020; 75:109747. [DOI: 10.1016/j.cellsig.2020.109747] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022]
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42
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Alaei-Mahabadi B, Elliott K, Larsson E. Systematic investigation of promoter substitutions resulting from somatic intrachromosomal structural alterations in diverse human cancers. Sci Rep 2020; 10:18176. [PMID: 33097743 PMCID: PMC7584658 DOI: 10.1038/s41598-020-74420-2] [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: 01/06/2020] [Accepted: 09/10/2020] [Indexed: 11/21/2022] Open
Abstract
One of the ways in which genes can become activated in tumors is by somatic structural genomic rearrangements leading to promoter swapping events, typically in the context of gene fusions that cause a weak promoter to be substituted for a strong promoter. While identifiable by whole genome sequencing, limited availability of this type of data has prohibited comprehensive study of the phenomenon. Here, we leveraged the fact that copy number alterations (CNAs) arise as a result of structural alterations in DNA, and that they may therefore be informative of gene rearrangements, to pinpoint recurrent promoter swapping at a previously intractable scale. CNA data from nearly 9500 human tumors was combined with transcriptomic sequencing data to identify several cases of recurrent activating intrachromosomal promoter substitution events, either involving proper gene fusions or juxtaposition of strong promoters to gene upstream regions. Our computational screen demonstrates that a combination of CNA and expression data can be useful for identifying novel fusion events with potential driver roles in large cancer cohorts.
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Affiliation(s)
- Babak Alaei-Mahabadi
- Department Of Medical Biochemistry and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, 405 30, Gothenburg, Sweden
| | - Kerryn Elliott
- Department Of Medical Biochemistry and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, 405 30, Gothenburg, Sweden
| | - Erik Larsson
- Department Of Medical Biochemistry and Cell Biology, Institute of Biomedicine, The Sahlgrenska Academy, University of Gothenburg, 405 30, Gothenburg, Sweden.
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43
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Delyon J, Porcher R, Battistella M, Meyer N, Adamski H, Bertucci F, Guillot B, Jouary T, Leccia MT, Dalac S, Mortier L, Ghrieb Z, Da Meda L, Vicaut E, Pedeutour F, Mourah S, Lebbe C. A Multicenter Phase II Study of Pazopanib in Patients with Unresectable Dermatofibrosarcoma Protuberans. J Invest Dermatol 2020; 141:761-769.e2. [PMID: 32956651 DOI: 10.1016/j.jid.2020.06.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/23/2020] [Accepted: 06/29/2020] [Indexed: 01/13/2023]
Abstract
Dermatofibrosarcoma protuberans (DFSP) is a soft-tissue sarcoma characterized by a high risk of local infiltration. The identification of the COL1A1-PDGFB t(17;22) translocation activating the PDGF pathway led to the use of imatinib in unresectable DFSP, with a response rate of 36-80%. Pazopanib is a multitarget tyrosine kinase inhibitor approved for soft-tissue sarcomas. We conducted a phase II study of patients with unresectable DFSP to evaluate the efficacy and safety of pazopanib. Patients received 800 mg of pazopanib daily. The primary endpoint was the objective response rate defined as the reduction of the largest diameter of the tumor by ≥30% at 6 months or at surgery. A total of 23 patients, including one pretreated with imatinib, were enrolled. With a median follow-up of 6.2 months (interquartile range = 5.6-7.8 months), five patients (22%, 95% confidence interval = 7-22%) had a partial response to pazopanib. The best objective response rate was 30% (95% confidence interval = 13-53%) using Response Evaluation Criteria in Solid Tumors. One patient with metastatic DFSP previously treated with imatinib died after 2.4 months. Nine patients (39%) discontinued the treatment owing to adverse events. Pharmacodynamics analyses of tumor samples were conducted: the enrichment of EGF and the EGFR-associated gene panel was associated with resistance, suggesting that EGFR-targeted therapies could be a therapeutic option to explore in DFSP. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01059656.
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Affiliation(s)
- Julie Delyon
- Team 1, HIPI, INSERM U976, Université de Paris, Paris, France; Department of Dermatology, Hôpital Saint-Louis AP-HP, Paris, France.
| | - Raphael Porcher
- CRESS-UMR1153, INSERM, INRA, Université de Paris, Paris, France; Centre d'Épidémiologie Clinique, Hôpital Hôtel-Dieu, AP-HP, Paris, France
| | - Maxime Battistella
- INSERM U976, Université de Paris, Paris, France; Pathology department, Hopital Saint-Louis AP-HP, Paris, France
| | - Nicolas Meyer
- Dermatologie, Institut Universitaire du Cancer et CHU de Toulouse, Toulouse, France; INSERM UMR 1037-CRCT, Toulouse, France
| | - Henri Adamski
- Department of Dermatology, Rennes University Hospital, Rennes, France
| | - François Bertucci
- Department of Medical Oncology, Institut Paoli-Calmettes, Marseille, France
| | - Bernard Guillot
- Department of Dermatology, Montpellier University Hospital, Montpellier, France
| | - Thomas Jouary
- Department of Dermatology, Hôpital François Mitterrand, Pau, France
| | | | - Sophie Dalac
- Department of Dermatology, CHU Dijon Bourgogne, Dijon, France
| | - Laurent Mortier
- Department of Dermatology, INSERM U1189, CHU Lille, University of Lille, Lille, France
| | - Zineb Ghrieb
- Centre d'Investigations Cliniques (CIC-1427), Hôpital Saint-Louis AP-HP, Paris, France
| | - Laetitia Da Meda
- Department of Dermatology, Hôpital Saint-Louis AP-HP, Paris, France
| | - Eric Vicaut
- Unité de Recherche Clinique, Hôpital Fernand Widal, Paris, France
| | - Florence Pedeutour
- Laboratory of Solid Tumors Genetics, Institute for Research on Cancer and Aging of Nice (IRCAN), CNRS UMR 7284/INSERM U1081, Nice University Hospital affiliated, Nice University Côte d'Azur, Nice, France
| | - Samia Mourah
- INSERM U976, Laboratoire de Pharmacogénomique, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, Paris, France
| | - Celeste Lebbe
- Team 1, HIPI, INSERM U976, Université de Paris, Paris, France; Department of Dermatology, Hôpital Saint-Louis AP-HP, Paris, France
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Zhang L, Hwang S, Benayed R, Zhu G, Mullaney KA, Rios KM, Sukhadia PY, Agaram N, Zhang Y, Bridge JA, Healey JH, Athanasian EA, Hameed M. Myositis ossificans-like soft tissue aneurysmal bone cyst: a clinical, radiological, and pathological study of seven cases with COL1A1-USP6 fusion and a novel ANGPTL2-USP6 fusion. Mod Pathol 2020; 33:1492-1504. [PMID: 32157177 PMCID: PMC8292969 DOI: 10.1038/s41379-020-0513-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/21/2020] [Accepted: 02/23/2020] [Indexed: 12/14/2022]
Abstract
Herein we described the clinical, radiological, histological, and molecular characteristics of seven soft tissue aneurysmal bone cysts (STABCs) diagnosed and managed at a tertiary cancer center and to elucidate their relationship with myositis ossificans (MO). All cases had established imaging and histopathological diagnosis of STABC and were subject to fluorescence in situ hybridization (FISH) for USP6 rearrangement and Archer® FusionPlex® targeted RNA sequencing (RNASeq) analysis to identify the fusion partner. A thorough literature review of STABC and MO was conducted. The patients presented with painful masses unpreceded by trauma, occurring most commonly in the deep soft tissue of the thigh/gluteus (4/7), and also in the supraclavicular region, the axilla, and the hand. On imaging, the lesions were frequently associated with peripheral calcification on conventional radiographs and CT (6/7), cystic components on ultrasound, as well as perilesional edema (7/7) and fluid levels (3/7) on MRI. Bone scan (1/1) showed intense radiotracer uptake. Histologically, 6/7 cases demonstrated zonal arrangements reminiscent of MO. USP6 rearrangement was found in all seven cases by FISH and/or RNASeq. RNASeq further detected COL1A1-USP6 fusion in six cases and a novel ANGPTL2-USP6 fusion in one case. Four patients underwent resection of the tumors and were disease free at their last follow-up. Three patients who underwent incisional or needle biopsies had no evidence of disease progression on imaging studies. In conclusion, the clinical, radiological, and pathological overlap between STABC and MO suggests that they are closely related entities. A novel fusion ANGPTL2-USP6 is associated with distinct clinical and pathological presentation.
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Affiliation(s)
- Lingxin Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065,Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, New York, NY, 10021
| | - Sinchun Hwang
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Ryma Benayed
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Guo Zhu
- Department of Pathology, Cooper University Health Care, Camden, NJ, 08103
| | - Kerry A. Mullaney
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Kelly M. Rios
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Purvil Y Sukhadia
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Narasimhan Agaram
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Yanming Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Julia A. Bridge
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198,Division of Molecular Pathology, The Translational Genomics Research Institute, Phoenix, AZ 85004
| | - John H. Healey
- Department of Orthopedic Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Edward A. Athanasian
- Department of Orthopedic Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, 10065
| | - Meera Hameed
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
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Dermatofibrosarcoma Protuberans: Update on the Diagnosis and Treatment. J Clin Med 2020; 9:jcm9061752. [PMID: 32516921 PMCID: PMC7355835 DOI: 10.3390/jcm9061752] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 12/23/2022] Open
Abstract
Dermatofibrosarcoma protuberans (DFSP) is a slow growing, low- to intermediate-grade dermal soft-tissue tumor. It has a high local recurrence rate but low metastatic potential. It is characterized by a uniform spindle cell arrangement, classically with a storiform pattern and CD34 immunoreactivity. The histomorphology and immunophenotype overlap with a broad range of other neoplasms. The standard treatment is complete surgical excision. The surgical procedures include wide local excision (WLE) with tumor free margins, Mohs micrographic surgery (MMS) and amputation. Unresectable DFSPs are treated with radiation therapy and/or targeted therapy. DFSP has characteristic t(17; 22) (q22; q13), resulting in a COL1A1- PDGFB fusion transcripts in more than 90% of DFSPs. Molecular detection of the gene rearrangement or fusion transcripts is helpful for the diagnosis of patients with atypical morphology and for screening candidates for targeted therapy with tyrosine kinase inhibitors. The aims of the present review are to update the clinical presentation, tumorigenesis and histopathology of DFSP and its variants for diagnosis and differential diagnosis from other benign and malignant tumors, to compare the advantages and drawbacks of WLE and MMS, to propose the baseline for selecting surgical procedure based on tumor’s location, size, stage and relationship with surrounding soft tissue and bone structures, and to provide a biologic rationale for the systemic therapy. We further propose a modified clinical staging system of DFSP and a surveillance program for the patients after surgical excision.
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Krewer J, Rolle U, Koscielniak E, Vokuhl C, Mentzel T, Seitz G, Feuchtgruber S, von Kalle T, Scheer M, Münter M, Bielack SS, Fuchs J, Niggli F, Hettmer S, Klingebiel T, Sparber-Sauer M. Dermatofibrosarcoma protuberans in children and adolescents: Primary and Relapsed disease-Experience of the Cooperative Weichteilsarkomstudiengruppe (CWS). J Surg Oncol 2020; 122:263-272. [PMID: 32430916 DOI: 10.1002/jso.25943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/08/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Dermatofibrosarcoma protuberans (DFSP) is a rare low-grade tumor. Little is known about best treatment of primary and relapsed disease (RD). METHODS Treatment and outcome of 40 patients with DFSP prospectively registered within the CWS-96 and -2002P trials and the registry SoTiSaR (1996-2016) were analysed. RESULTS Median age was 8 years (range, 0.64-17.77). Fluorescence in situ hybridization analysis to detect COL1A1-PDGFB fusion genes was positive in 86% (12/14) of evaluated patients. Primary resection was performed in all patients. Patients had IRS group I (n = 28), II (n = 9), and III (n = 2); not available (n = 1). To achieve complete remission (CR), a secondary resection was performed in 18 patients resulting in microscopically complete (R0, n = 34/40) and microscopically incomplete (R1, n = 5/40) resection. All patients achieved CR. The 5-year event-free survival (EFS) and overall survival was 86% (±12; CI, 95%) and 100% (±0; CI, 95%), respectively. R0 resection/IRS I was significantly favorable for the 5-year EFS. Local relapse occurred after a median time of 1.1 years (range, 0.04-5.1) in 15% (6/40) after CR. All patients with RD underwent resection and achieved CR. Three patients had fibrosarcomatous DFSP, two were alive after R0 resection. CONCLUSION Complete surgical resection is mandatory to prevent relapse of DFSP.
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Affiliation(s)
- Julia Krewer
- Department of Pediatric Surgery and Urology, University of Frankfurt, Frankfurt, Germany
| | - Udo Rolle
- Department of Pediatric Surgery and Urology, University of Frankfurt, Frankfurt, Germany
| | - Ewa Koscielniak
- Klinikum Stuttgart-Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pediatrics 5 (Oncology, Hematology, Immunology), Stuttgart, Germany.,Department of Pediatric Hematology and Oncology, Children's Hospital, Tuebingen, Germany
| | - Christian Vokuhl
- Department of Pathology, Section of Pediatric Pathology, Bonn, Germany
| | - Thomas Mentzel
- Dermatopathologie Friedrichshafen/Bodensee, Friedrichshafen, Germany
| | - Guido Seitz
- Department of Pediatric Surgery, University Children's Hospital Marburg, Marburg, Germany
| | - Simone Feuchtgruber
- Klinikum Stuttgart-Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pediatrics 5 (Oncology, Hematology, Immunology), Stuttgart, Germany
| | - Thekla von Kalle
- Klinikum Stuttgart - Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Olgahospital, Institute of Radiology, Stuttgart, Germany
| | - Monika Scheer
- Klinikum Stuttgart-Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pediatrics 5 (Oncology, Hematology, Immunology), Stuttgart, Germany
| | - Marc Münter
- Klinikum Stuttgart, Institute of Radiotherapy, Stuttgart, Germany
| | - Stefan S Bielack
- Klinikum Stuttgart-Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pediatrics 5 (Oncology, Hematology, Immunology), Stuttgart, Germany.,Department of Pediatric Hematology and Oncology, University of Muenster, Muenster, Germany
| | - Joerg Fuchs
- Department of Pediatric Surgery and Urology, University Children's Hospital, Tuebingen, Germany
| | - Felix Niggli
- Department of Pediatric Oncology, University of Zurich, Zurich, Switzerland
| | - Simone Hettmer
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology and Oncology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Thomas Klingebiel
- Department of Children and Adolescents, University of Frankfurt, Frankfurt, Germany
| | - Monika Sparber-Sauer
- Klinikum Stuttgart-Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pediatrics 5 (Oncology, Hematology, Immunology), Stuttgart, Germany
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Yoshimatsu Y, Noguchi R, Tsuchiya R, Sei A, Nakagawa M, Yoshida A, Kawai A, Kondo T. Establishment and characterization of NCC-DFSP3-C1: a novel patient-derived dermatofibrosarcoma protuberans cell line. Hum Cell 2020; 33:894-903. [PMID: 32356243 DOI: 10.1007/s13577-020-00365-3] [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] [Received: 02/26/2020] [Accepted: 04/16/2020] [Indexed: 11/24/2022]
Abstract
Dermatofibrosarcoma protuberans (DFSP) is the most common dermal sarcoma; it is characterized by the presence of the COL1A1-PDGFB translocation, which causes the constitutive activation of the platelet-derived growth factor β (PDGFB) signaling pathway. DFSP frequently exhibits local recurrence and is refractory to conventional chemotherapy. Therefore, a novel therapeutic strategy is required for improving the prognosis of DFSP. Although patient-derived cell lines are important tools for pre-clinical studies, currently, only a few such cell lines are available for DFSP in cell banks. Here, we report the establishment of a novel DFSP cell line. Using a surgically resected metastatic tumor tissue from a patient with DFSP, we established a cell line called NCC-DFSP3-C1. The NCC-DFSP3-C1 cells had a COL1A1-PDGFB translocation and retained the same copy number aberrations as the original tumor tissue. NCC-DFSP3-C1 cells exhibited constant growth, spheroid formation, and invasive ability. By screening a drug library, we identified anti-cancer agents with inhibitory effects on the proliferation of NCC-DFSP3-C1 cells; these anti-cancer agents included proteasomal, histone deacetylase, and kinase inhibitors. We concluded that the NCC-DFSP3-C1 cell line may serve as a useful tool for performing basic and pre-clinical studies on DFSP.
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Affiliation(s)
- Yuki Yoshimatsu
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Rei Noguchi
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Ryuto Tsuchiya
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.,Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Akane Sei
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Makoto Nakagawa
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Akihiko Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Tadashi Kondo
- Division of Rare Cancer Research, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
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Chrzanowska NM, Kowalewski J, Lewandowska MA. Use of Fluorescence In Situ Hybridization (FISH) in Diagnosis and Tailored Therapies in Solid Tumors. Molecules 2020; 25:molecules25081864. [PMID: 32316657 PMCID: PMC7221545 DOI: 10.3390/molecules25081864] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/05/2020] [Accepted: 04/10/2020] [Indexed: 11/16/2022] Open
Abstract
Fluorescence in situ hybridization (FISH) is a standard technique used in routine diagnostics of genetic aberrations. Thanks to simple FISH procedure is possible to recognize tumor-specific abnormality. Its applications are limited to designed probe type. Gene rearrangements e.g., ALK, ROS1 reflecting numerous translocational partners, deletions of critical regions e.g., 1p and 19q, gene fusions e.g., COL1A1-PDGFB, genomic imbalances e.g., 6p, 6q, 11q and amplifications e.g., HER2 are targets in personalized oncology. Confirmation of genetic marker is frequently a direct indication to start specific, targeted treatment. In other cases, detected aberration helps pathologists to better distinguish soft tissue sarcomas, or to state a final diagnosis. Our main goal is to show that applying FISH to formalin-fixed paraffin-embedded tissue sample (FFPE) enables assessing genomic status in the population of cells deriving from a primary tumor or metastasis. Although many more sophisticated techniques are available, like Real-Time PCR or new generation sequencing, FISH remains a commonly used method in many genetic laboratories.
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Affiliation(s)
- Natalia Magdalena Chrzanowska
- Molecular Oncology and Genetics Department, Innovative Medical Forum, The F. Lukaszczyk Oncology Center, 85-796 Bydgoszcz, Poland;
| | - Janusz Kowalewski
- Department of Thoracic Surgery and Tumors, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 85-067 Torun, Poland;
| | - Marzena Anna Lewandowska
- Molecular Oncology and Genetics Department, Innovative Medical Forum, The F. Lukaszczyk Oncology Center, 85-796 Bydgoszcz, Poland;
- Department of Thoracic Surgery and Tumors, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 85-067 Torun, Poland;
- Correspondence: ; Tel.: +48-52-3743030
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Zhou Arlene Y, Chin J, Strutin MD, Lomiguen CM. Unmasking dermatofibrosarcoma protuberans: Case report of an atypical presentation complicated by post-surgical excision. Int J Surg Case Rep 2020; 69:101-104. [PMID: 32305027 PMCID: PMC7163292 DOI: 10.1016/j.ijscr.2020.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/08/2020] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Dermatofibrosarcoma Protuberans (DFSP) is a rare type of malignant tumor of the cutaneous soft tissue that typically involves the dermis and surrounding structures. The typical clinical presentation involves an asymptomatic, slowly enlarging, indurated plaque, usually found on the trunk. PRESENTATION OF CASE Here we present an atypical presentation of DFSP in a patient with a recurrent mass that was initially diagnosed as a lipoma, with supporting literature and clinical considerations for post-surgical management DISCUSSION: In its earlier stages, DFSP can mimic other benign or malignant dermatological pathologies, which can complicate diagnosis purely via history and physical exam. Atypical features such as prior surgical management, morphology, and location can complicate the clinical diagnosis of DFSP. Immunohistochemistry is often required for definitive diagnosis as DFSP is CD34+ and is histologically described as spindle-cells in whorled or storiform pattern, with uniform, small elongated cells. CONCLUSION DFSP is a rare tumor of the skin and subcutaneous tissue. Though it commonly presents with induration, skin discoloration, and telangiectasias, it is important to keep DFSP as a differential in new masses found on previous surgical sites, especially if the previous mass had a possibility of recurrence.
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Affiliation(s)
- YaQun Zhou Arlene
- Department of Primary Care, Touro College of Osteopathic Medicine, New York, NY, United States; Department of Surgery, Saint Clare's Denville Hospital, Denville, NJ, United States.
| | - Justin Chin
- Department of Primary Care, Touro College of Osteopathic Medicine, New York, NY, United States; Department of Family Medicine, Lifelong Medical Care, Richmond, CA, United States.
| | - Millard D Strutin
- Department of Surgery, Saint Clare's Denville Hospital, Denville, NJ, United States
| | - Christine M Lomiguen
- Department of Pathology, Lake Erie College of Osteopathic Medicine, Erie, PA, United States.
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Navarrete-Dechent C, Mori S, Barker CA, Dickson MA, Nehal KS. Imatinib Treatment for Locally Advanced or Metastatic Dermatofibrosarcoma Protuberans: A Systematic Review. JAMA Dermatol 2020; 155:361-369. [PMID: 30601909 DOI: 10.1001/jamadermatol.2018.4940] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Importance Dermatofibrosarcoma protuberans (DFSP) has the potential for local destruction and recurrence, although it carries a low risk of metastasis. Complete surgical resection with negative margins is considered the gold standard for treatment; however, there are cases that are unresectable owing to tumor extension or size or owing to risk of cosmetic and/or functional impairment. Imatinib treatment has been used for locally advanced or metastatic DFSP. Objective To evaluate the usefulness of imatinib for treating DFSP. Evidence Review We conducted a systematic review on the PubMed and Embase databases for articles published from September 2002 through October 2017 using the key words "dermatofibrosarcoma" or "dermatofibrosarcoma protuberans" AND "therapy" AND "imatinib." References within retrieved articles were also reviewed to identify additional studies. Studies of adults with histologically proven DFSP treated with imatinib as monotherapy or as an adjuvant or neoadjuvant therapy to surgery were included. Extracted data were analyzed using descriptive statistics. PRISMA guidelines were followed. All analysis took place October through December 2017. Findings Nine studies met inclusion criteria; 152 patients were included. The calculated mean patient age was 49.3 years (range, 20-73 years). Calculated mean tumor diameter was 9.9 cm (range, 1.2-49.0 cm). When COL1A1-PDGFβ protein translocation (collagen, type 1, alpha 1-platelet-derived growth factor β) was reported, it was present in 90.9% of patients (111 of 122). Complete response was seen in 5.2% of patients (8 of 152), partial response in 55.2% (84 of 152), stable disease in 27.6% (42 of 152), and progression in 9.2% (14 of 152). Four of the 152 patients (2.6%) were excluded from the analysis owing to unknown or unevaluable response. There were no differences in response rate using 400-mg or 800-mg daily doses (67.5% or 27 of 40 patients for 400-mg dose vs 67.1% or 49 of 73 patients for 800-mg dose complete or partial response; P > .99). Adverse events were present in at least 73.5% of cases (78 of 106); severe adverse events were present in 15.1% of cases (20 of 132). Conclusions and Relevance Imatinib is a useful directed therapy in patients with DFSP who are not surgical candidates owing to disease extension or significant cosmetic or functional impairment. There seems to be no difference between 400- or 800-mg daily doses.
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Affiliation(s)
- Cristian Navarrete-Dechent
- Department of Dermatology, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Shoko Mori
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Christopher A Barker
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Mark A Dickson
- Sarcoma Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, New York
| | - Kishwer S Nehal
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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