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Liu Z, Ma Y, Hao L. Characterization of three novel cell lines derived from the brain of spotted sea bass: Focusing on cell markers and susceptibility toward iridoviruses. FISH & SHELLFISH IMMUNOLOGY 2022; 130:175-185. [PMID: 36028055 DOI: 10.1016/j.fsi.2022.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Despite tens of cell lines originating from fish brain tissue have been constructed, little is known about the definite cell types they belong to. Whether fish cell lines derived from the brain shares similar characteristics is not well-answered yet. Here, we constructed three cell lines designated as LMB-S, LMB-M, LMB-L using brain tissue of spotted sea bass (Lateolabrax maculatus). Among them, LMB-L was identified as astroglia-like cells considering the high expression of GFAP, DCX, PTX, S100b, which are regarded as astrocyte-specific or astrocyte-associated cell markers. LMB-M exhibited smooth muscle-like features showing strong expression of LMOD1, SLAMP, M-cadherin, MGP, which are confirmed as muscle-restricted or myogenesis-involved cell markers. Although LMB-S was not definitely identified, it appeared an activation of WNT/β-catenin pathway. Besides the distinct expression profiles of cell markers, the three cell lines also presented differences in transfection efficiency and susceptibility to iridovirus infection. Relying on the established cell lines, a novel megalocytivirus, named LMIV (Lateolabrax maculatus iridovirus), was first isolated from diseased spotted sea bass. Genetic analysis of major capsid protein (MCP) and adenosine triphosphatase (ATPase) manifested that LMIV was clearly distinguishable from other representative teleost iridoviruses. Further investigations revealed that LMIV could replicate most efficiently in LMB-L cells obtaining the highest viral load (2.16 × 1010 copy/mL). By contrast, LMB-S cells gave rise to the highest viral load up to 3.86 × 108 copy/mL, when the three cell lines were infected with MRV, a newly emerged ranavirus. Moreover, LMIV infection caused lots of cells to be detached from monolayers, generating adherent and non-adherent cells. An opposite expression profiling of type I IFN pathway-related genes (JAK1, STAT1, STAT2, IRF9, Mx1) was found between adherent and non-adherent cells. Combined with the analysis of MCP gene expression, it is speculated that inhibiting type I IFN pathway in non-adherent cells allowed the facilitation of virus duplication. Taken together, the present study broadens our understanding about the diversity of cell lines derived from fish brain tissue and screening cells more susceptible to virus is not only meaningful for the development of vaccine, but also provide clues for further clarification of cell-iridovirus interactions.
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Affiliation(s)
- Zhenxing Liu
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, 510640, China; Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, PR China, Guangzhou, 510640, China; Collaborative Innovation Center of GDAAS, China.
| | - Yanping Ma
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, 510640, China; Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, PR China, Guangzhou, 510640, China; Collaborative Innovation Center of GDAAS, China
| | - Le Hao
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, 510640, China; Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, PR China, Guangzhou, 510640, China; Collaborative Innovation Center of GDAAS, China
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2
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Hasegawa M, Hanamatsu Y, Saigo C, Kito Y, Takeuchi T. Tumor suppressor effect of an antibody on xenotransplanted sarcomatoid mesothelioma cells. Thorac Cancer 2022; 13:2566-2573. [PMID: 35916358 PMCID: PMC9475231 DOI: 10.1111/1759-7714.14591] [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: 04/07/2022] [Revised: 06/30/2022] [Accepted: 07/08/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND As mesothelioma generally has an unfavorable prognosis, further advances are needed to improve the outcomes in patients with mesothelioma. In the present study, we generated and characterized a monoclonal antibody that could inhibit mesothelioma cell proliferation in a xenotransplantation mouse model. METHODS We generated monoclonal antibodies by immunizing mice with cultured mesothelioma cells. These antibodies were then characterized by immunofluorescence staining, immunohistochemical staining, secondary antibody-drug conjugate assay, antibody inoculation in a xenotransplantation mesothelioma mouse model, and mass spectrometry followed by small interfering RNA (siRNA) analysis. 5' rapid amplification of complementary DNA ends followed by sequencing was performed to deduce the amino acid sequences of the variable regions of the light and heavy chains of AX10. RESULTS An IgG2b κ-type AX10 antibody against the cell surface membrane of sarcomatoid mesothelioma cells was generated. AX10 immunoreactivity was detected in 12 out of 22 different mesothelioma tissue specimens, but there was little AX10 immunoreactivity in a normal human tissue array. AX10 decreased Matrigel invasion by MPM-1 cells but did not affect cell proliferation. Notably, AX10 significantly inhibited the proliferation of MPM-1 cells xenotransplanted into Severe combined immunodeficiency-Nonobese diabetic mice. Matrix-assisted laser desorption ionization time-of-flight mass spectrometry followed by siRNA silencing indicated that AX10 reacted to a unique alternatively spliced isoform of sarcolemma-associated protein. AX10 is composed of as yet unregistered amino acid sequences in its variable region. CONCLUSIONS AX10 could have therapeutic potential for patients with sarcomatoid mesothelioma.
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Affiliation(s)
- Masayoshi Hasegawa
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan.,Department of Pathology, Matsunami General Hospital, Gifu, Japan
| | - Yuki Hanamatsu
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Chiemi Saigo
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan.,The United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Yusuke Kito
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tamotsu Takeuchi
- Department of Pathology and Translational Research, Gifu University Graduate School of Medicine, Gifu, Japan
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3
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Rao U, Schoedel KE, Petrosko P, Sakai N, LaFramboise W. Genetic variants and copy number changes in soft tissue leiomyosarcoma detected by targeted amplicon sequencing. J Clin Pathol 2019; 72:810-816. [DOI: 10.1136/jclinpath-2019-205998] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 06/22/2019] [Accepted: 06/24/2019] [Indexed: 12/22/2022]
Abstract
AimsLeiomyosarcomas (LMSs) occur in various tissues and harbour potential for metastases. The genomic landscape of LMS is poorly understood. In an effort to improve understanding of the LMS genome, we analysed 11 LMSs of somatic soft tissue including matching tissue of normal phenotype.MethodsDNA derived from microdissected tumour domains and matching normal tissue underwent amplicon sequencing of 409 tumour suppressors and oncogenes using the Ion Torrent Comprehensive Cancer Panel.ResultsGenomic changes were heterogeneous with few recurrent abnormalities detected. Coding variants were identified in genes involved in signal transduction, transcriptional regulation and DNA repair. There were variants in several genes related to angiogenesis and GPR124 variants (TEM5) were confirmed by immunohistochemical analysis of a LMS tissue microarray. Surprisingly, there were shared coding variants in tumour and corresponding normal tissue.ConclusionsLMSs are a very heterogeneous population lacking recurrent somatic abnormalities. The presence of damaging mutations in normal tissue may reflect either a germline predisposition or field effect rather than tissue contamination. Hopeful therapeutic targets appear to be those related to AKT/MTOR pathway.
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Uterine and vaginal sarcomas resembling fibrosarcoma: a clinicopathological and molecular analysis of 13 cases showing common NTRK-rearrangements and the description of a COL1A1-PDGFB fusion novel to uterine neoplasms. Mod Pathol 2019; 32:1008-1022. [PMID: 30877273 DOI: 10.1038/s41379-018-0184-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 01/26/2023]
Abstract
Mesenchymal neoplasms of the uterus (corpus and cervix) encompass a heterogeneous group of tumors with differing morphologies, immunophenotypes and molecular alterations. With the advent of modern molecular techniques, such as next generation sequencing, newly defined genetic abnormalities are being reported in this group of neoplasms. Herein we report the clinicopathological and molecular features of a series of 13 spindle cell sarcomas of the uterus and vagina (10 cervix, 2 uterine corpus, 1 vagina) with morphology resembling fibrosarcoma. After targeted RNA-sequencing, dual FISH fusion and array-CGH analysis, 7 of 13 tumors exhibited NTRK rearrangements (6 TPM3-NTRK1 and 1 EML4-NTRK3) and 3 a COL1A1-PDGFB fusion; in the other 3 neoplasms, all of which were positive with S100 (2 diffuse, 1 focal), we identified no rearrangement. All the NTRK fusion-positive sarcomas were located in the cervix and exhibited diffuse staining with Trk while all the other neoplasms were negative. CD34 was diffusely positive in all 3 of the COL1A1-PDGFB fusion sarcomas. The latter molecular abnormality is identical to that commonly found in dermatofibrosarcoma protuberans and has not been reported previously in uterine mesenchymal neoplasms. We suggest that uterine sarcomas with a morphology resembling fibrosarcoma (and in which leiomyosarcoma and the known molecularly confirmed high-grade endometrial stromal sarcomas have been excluded) can be divided into 3 groups:- an NTRK fusion group, a COL1A1-PDGFB fusion group and a group containing neither of these molecular abnormalities which, on the basis of positive staining with S100, could be tentatively classified as malignant peripheral nerve sheath tumor, although additional molecular studies may identify specific genetic alterations necessitating a nomenclature change. We suggest a diagnostic algorithm when reporting such neoplasms. Identification of these newly described fusion-associated sarcomas is important given the potential for targeted treatments.
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Ding R, Yang M, Quan J, Li S, Zhuang Z, Zhou S, Zheng E, Hong L, Li Z, Cai G, Huang W, Wu Z, Yang J. Single-Locus and Multi-Locus Genome-Wide Association Studies for Intramuscular Fat in Duroc Pigs. Front Genet 2019; 10:619. [PMID: 31316554 PMCID: PMC6609572 DOI: 10.3389/fgene.2019.00619] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 06/13/2019] [Indexed: 12/26/2022] Open
Abstract
Intramuscular fat (IMF) is an important quantitative trait of meat, which affects the associated sensory properties and nutritional value of pork. To gain a better understanding of the genetic determinants of IMF, we used a composite strategy, including single-locus and multi-locus association analyses to perform genome-wide association studies (GWAS) for IMF in 1,490 Duroc boars. We estimated the genomic heritability of IMF to be 0.23 ± 0.04. A total of 30 single nucleotide polymorphisms (SNPs) were found to be significantly associated with IMF. The single-locus mixed linear model (MLM) and multiple-locus methods multi-locus random-SNP-effect mixed linear model (mrMLM), fast multi-locus random-SNP-effect efficient mixed model association (FASTmrEMMA), and integrative sure independence screening expectation maximization Bayesian least absolute shrinkage and selection operator model (ISIS EM-BLASSO) analyses identified 5, 9, 8, and 21 significant SNPs, respectively. Interestingly, a novel quantitative trait locus (QTL) on SSC 7 was found to affect IMF. In addition, 10 candidate genes (BDKRB2, GTF2IRD1, UTRN, TMEM138, DPYD, CASQ2, ZNF518B, S1PR1, GPC6, and GLI1) were found to be associated with IMF based on their potential functional roles in IMF. GO analysis showed that most of the genes were involved in muscle and organ development. A significantly enriched KEGG pathway, the sphingolipid signaling pathway, was reported to be associated with fat deposition and obesity. Identification of novel variants and functional genes will advance our understanding of the genetic mechanisms of IMF and provide specific opportunities for marker-assisted or genomic selection in pigs. In general, such a composite single-locus and multi-locus strategy for GWAS may be useful for understanding the genetic architecture of economic traits in livestock.
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Affiliation(s)
- Rongrong Ding
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Ming Yang
- National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Jianping Quan
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Shaoyun Li
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Zhanwei Zhuang
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Shenping Zhou
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Enqin Zheng
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Linjun Hong
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Zicong Li
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Gengyuan Cai
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China.,National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Wen Huang
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Zhenfang Wu
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China.,National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Jie Yang
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
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Guo X, Tang Y, Zhu W. Distinct esophageal adenocarcinoma molecular subtype has subtype-specific gene expression and mutation patterns. BMC Genomics 2018; 19:769. [PMID: 30355311 PMCID: PMC6201634 DOI: 10.1186/s12864-018-5165-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/15/2018] [Indexed: 02/08/2023] Open
Abstract
Background Esophageal carcinoma (EC), consists of two histological types, esophageal squamous carcinoma (ESCC) and esophageal adenocarcinoma (EAC). EAC accounted for 10% of EC for centuries; however, the prevalence of EAC has alarmingly risen 6 times and increased to about 50% of EC in recent 30 years in the western countries, while treatment options for EAC patients are still limited. Stratification of molecular subtypes by gene expression profiling methods had offered opportunities for targeted therapies. However, the molecular subtype in EAC has not been defined. Hence, Identification of EAC molecular subtypes is needed and will provide important insights for future new therapies. Results We performed meta-analysis of gene expression profiling data on three independent EAC cohorts and showed that there are two common molecular subtypes in EAC. Each of the two EAC molecular subtypes has subtype specific expression patterns and mutation signatures. Genes which were over-expressed in subtype I EACs rather than subtype II EAC cases, were enriched in biological processes including epithelial cell differentiation, keratinocyte differentiation, and KEGG pathways including basal cell carcinoma. TP53 and CDKN2A are significantly mutated in both EAC subtypes. 24 genes including SMAD4 were found to be only significantly mutated in subtype I EAC cases, while 30 genes including ARID1A are only significantly mutated in subtype II EACs. Conclusion Two EAC molecular subtypes were defined and validated. This finding may offer new opportunities for targeted therapies. Electronic supplementary material The online version of this article (10.1186/s12864-018-5165-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiangqian Guo
- Department of Preventive Medicine, Joint National Laboratory for Antibody Drug Engineering, Institute of Biomedical Informatics ,School of Basic Medical Sciences, Henan University, Kaifeng, 475004, China. .,Cell Signal Transduction Laboratory, Henan University, Kaifeng, 475004, China.
| | - Yitai Tang
- Department of Pathology, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Wan Zhu
- Department of Anesthesia, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
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Fibroblastic Malignant Peripheral Nerve Sheath Tumour of the Uterine Cervix. Int J Gynecol Pathol 2018; 37:497-503. [DOI: 10.1097/pgp.0000000000000453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Al-Zaid T, Wang WL, Somaiah N, Lazar AJ. Molecular profiling of sarcomas: new vistas for precision medicine. Virchows Arch 2017; 471:243-255. [PMID: 28664413 DOI: 10.1007/s00428-017-2174-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 06/06/2017] [Accepted: 06/08/2017] [Indexed: 12/27/2022]
Abstract
Sarcoma is a large and heterogeneous group of malignant mesenchymal neoplasms with significant histological overlap. Accurate diagnosis can be challenging yet important for selecting the appropriate treatment approach and prognosis. The currently torrid pace of new genomic discoveries aids our classification and diagnosis of sarcomas, understanding of pathogenesis, development of new medications, and identification of alterations that predict prognosis and response to therapy. Unfortunately, demonstrating effective targets for precision oncology has been elusive in most sarcoma types. The list of potential targets greatly outnumbers the list of available inhibitors at the present time. This review will discuss the role of molecular profiling in sarcomas in general with emphasis on selected entities with particular clinical relevance.
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Affiliation(s)
- Tariq Al-Zaid
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Wei-Lien Wang
- Department of Pathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe, Boulevard-Unit 85, Houston, TX, 77030-4009, USA.,Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Sarcoma Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Neeta Somaiah
- Department of Sarcoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alexander J Lazar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe, Boulevard-Unit 85, Houston, TX, 77030-4009, USA. .,Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Sarcoma Research Center, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Li HS, Lin Q, Wu J, Jiang ZH, Zhao JB, Pan J, He WQ, Zha JM. Myosin regulatory light chain phosphorylation is associated with leiomyosarcoma development. Biomed Pharmacother 2017; 92:810-818. [PMID: 28618653 DOI: 10.1016/j.biopha.2017.05.139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/16/2017] [Accepted: 05/29/2017] [Indexed: 12/25/2022] Open
Abstract
Leiomyosarcoma is a rare malignant smooth muscle tumor which can be very unpredictable. Myosin II is involved in many functions, including cell contraction, migration, and adhesion. The phosphorylation of myosin regulatory light chain (MLC) by myosin light chain kinase (MLCK) determines the activity of Myosin II. However, it is still unclear whether MLC phosphorylation is involved in cell proliferation in leiomyosarcoma. In this study, we aimed to explore the role of MLCK-dependent MLC phosphorylation in leiomyosarcoma development. We found that the expression of MLCK, phosphorylated MLC, and Ki67 in leiomyosarcoma was significantly higher than in leiomyoma and adjacent normal smooth muscle cells. MLCK expression was significantly correlated with phosphorylated MLC level. Kaplan-Meier survival analysis revealed that patients with high expression of MLCK or phosphorylated MLC had shorter overall survival times compared with the patients with low expression of MLCK or phosphorylated MLC. In vitro studies revealed a causative link between MLC phosphorylation and cellular proliferation as expression of phosphomimetic MLC (T19D, S20D) increased cellular proliferation as assessed by Ki67 staining. In contrast, MLCK specific inhibitor reduced cellular proliferation. We concluded that MLCK, phosphorylated MLC and Ki67 were overexpressed in leiomyosarcoma. MLCK dependent MLC phosphorylation might be responsible for the high proliferative state in leiomyosarcoma. MLCK and phosphorylated MLC are potential prognostic indicators of leiomyosarcoma.
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Affiliation(s)
- Hua-Shan Li
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China
| | - Qian Lin
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China
| | - Jia Wu
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China
| | - Zhi-Hui Jiang
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China
| | - Jia-Bi Zhao
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou 213004, China
| | - Jian Pan
- Institute of Pediatrics, Children's Hospital of Soochow University, Suzhou 215003, China
| | - Wei-Qi He
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China.
| | - Juan-Min Zha
- Cambridge-Suda (CAM-SU) Genome Resource Center, Soochow University, and Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou 215123, China.
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Shi Z, Jiao S, Zhou Z. STRIPAK complexes in cell signaling and cancer. Oncogene 2016; 35:4549-57. [PMID: 26876214 DOI: 10.1038/onc.2016.9] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 12/24/2015] [Accepted: 12/24/2015] [Indexed: 12/28/2022]
Abstract
Striatin-interacting phosphatase and kinase (STRIPAK) complexes are striatin-centered multicomponent supramolecular structures containing both kinases and phosphatases. STRIPAK complexes are evolutionarily conserved and have critical roles in protein (de)phosphorylation. Recent studies indicate that STRIPAK complexes are emerging mediators and regulators of multiple vital signaling pathways including Hippo, MAPK (mitogen-activated protein kinase), nuclear receptor and cytoskeleton remodeling. Different types of STRIPAK complexes are extensively involved in a variety of fundamental biological processes ranging from cell growth, differentiation, proliferation and apoptosis to metabolism, immune regulation and tumorigenesis. Growing evidence correlates dysregulation of STRIPAK complexes with human diseases including cancer. In this review, we summarize the current understanding of the assembly and functions of STRIPAK complexes, with a special focus on cell signaling and cancer.
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Affiliation(s)
- Z Shi
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - S Jiao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Z Zhou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,School of Life Science and Technology, ShanghaiTech University, Shanghai, China
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Zou DB, Wei X, Hu RL, Yang XP, Zuo L, Zhang SM, Zhu HQ, Zhou Q, Gui SY, Wang Y. Melatonin inhibits the Migration of Colon Cancer RKO cells by Down-regulating Myosin Light Chain Kinase Expression through Cross-talk with p38 MAPK. Asian Pac J Cancer Prev 2015; 16:5835-42. [DOI: 10.7314/apjcp.2015.16.14.5835] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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12
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Fan TT, Cheng Y, Wang YF, Gui SY, Chen FH, Zhou Q, Wang Y. A novel all-trans retinoid acid derivative N-(3-trifluoromethyl- phenyl)- retinamide inhibits lung adenocarcinoma A549 cell migration through down-regulating expression of myosin light chain kinase. Asian Pac J Cancer Prev 2015; 15:7687-92. [PMID: 25292047 DOI: 10.7314/apjcp.2014.15.18.7687] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIM To observe the effects of a novel all-trans retinoid acid (ATRA) derivative, N-(3-trifluoromethyl-phenyl)- retinamide (ATPR), on lung adenocarcinoma A549 cells and to explore the potential mechanism of ATPR inhibiting of A549 cell migration. MATERIALS AND METHODS The cytotoxicity of ATRA and ATPR on A549 cells was assessed using MTT assay. Wound healing assays were used to analyze the influences of ATRA, ATPR, ML-7 (a highly selective inhibitor of myosin light chain kinase (MLCK)), PMA (an activator of MAPKs) and PD98059 (a selective inhibitor of ERK1/2) on the migration of A549 cells. Expression of MLCK and phosphorylation of myosin light chain (MLC) were assessed by Western blotting. RESULTS ATRA and ATPR inhibited the proliferation of A549 cells in a dose- and time-dependent manner, and the effect of ATPR was much more remarkable compared with ATRA. Relative migration rate and migration distance of A549 cells both decreased significantly after treatment with ATPR or ML-7. The effect on cell migration of PD98059 combining ATPR treatment was more notable than that of ATPR alone. Moreover, compared with control groups, the expression levels of MLCK and phosphorylated MLC in A549 cells were both clearly reduced in ATRA and ATPR groups. CONCLUSIONS ATPR could suppress the migration and invasion of A549 cells, and the mechanism might be concerned with down- regulating the expression of MLCK in the ERK-MAPK signaling pathway, pointing to therapeutic prospects in lung cancer.
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Affiliation(s)
- Ting-Ting Fan
- Department of Respiratory Medicine, the First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China E-mail : ,
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Duffaud F, Ray-Coquard I, Salas S, Pautier P. Recent advances in understanding and managing leiomyosarcomas. F1000PRIME REPORTS 2015; 7:55. [PMID: 26097728 PMCID: PMC4447031 DOI: 10.12703/p7-55] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leiomyosarcomas are malignant mesenchymal tumours that derive from the smooth muscle lineage. They are studied and frequently treated as if they are the same as other soft tissue sarcomas. Recent developments suggest that a different approach may be more appropriate. Their underlying genetic mechanisms remain unclear, and complex. Unbalanced karyotypic defects are the only shared features observed across different leiomyosarcoma subtypes. Unlike other soft tissue sarcomas, leiomyosarcomas are particularly sensitive to the combination of gemcitabine and docetaxel. Furthermore, treatment with trabectedin has shown a good efficacy in leiomyosarcomas, mainly in the form of chronic disease stabilisation.
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Affiliation(s)
- Florence Duffaud
- Aix Marseille Université (AMU), Service d'Oncologie médicaleCHU la Timone Boulevard J Moulin 13005 MarseilleFrance
| | - Isabelle Ray-Coquard
- Université Claude Bernard Lyon I, Oncologie Médicale, Centre Leon Bérard28 rue Laennec, 69008 LyonFrance
| | - Sébastien Salas
- Aix Marseille Université (AMU), Service d'Oncologie médicaleCHU la Timone Boulevard J Moulin 13005 MarseilleFrance
| | - Patricia Pautier
- Gustave Roussy Cancer Campus114 Rue E Vaillant, 94805 VillejuifFrance
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15
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Guo X, Jo VY, Mills AM, Zhu SX, Lee CH, Espinosa I, Nucci MR, Varma S, Forgó E, Hastie T, Anderson S, Ganjoo K, Beck AH, West RB, Fletcher CD, van de Rijn M. Clinically Relevant Molecular Subtypes in Leiomyosarcoma. Clin Cancer Res 2015; 21:3501-11. [PMID: 25896974 DOI: 10.1158/1078-0432.ccr-14-3141] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 04/11/2015] [Indexed: 01/23/2023]
Abstract
PURPOSE Leiomyosarcoma is a malignant neoplasm with smooth muscle differentiation. Little is known about its molecular heterogeneity and no targeted therapy currently exists for leiomyosarcoma. Recognition of different molecular subtypes is necessary to evaluate novel therapeutic options. In a previous study on 51 leiomyosarcomas, we identified three molecular subtypes in leiomyosarcoma. The current study was performed to determine whether the existence of these subtypes could be confirmed in independent cohorts. EXPERIMENTAL DESIGN Ninety-nine cases of leiomyosarcoma were expression profiled with 3'end RNA-Sequencing (3SEQ). Consensus clustering was conducted to determine the optimal number of subtypes. RESULTS We identified 3 leiomyosarcoma molecular subtypes and confirmed this finding by analyzing publically available data on 82 leiomyosarcoma from The Cancer Genome Atlas (TCGA). We identified two new formalin-fixed, paraffin-embedded tissue-compatible diagnostic immunohistochemical markers; LMOD1 for subtype I leiomyosarcoma and ARL4C for subtype II leiomyosarcoma. A leiomyosarcoma tissue microarray with known clinical outcome was used to show that subtype I leiomyosarcoma is associated with good outcome in extrauterine leiomyosarcoma while subtype II leiomyosarcoma is associated with poor prognosis in both uterine and extrauterine leiomyosarcoma. The leiomyosarcoma subtypes showed significant differences in expression levels for genes for which novel targeted therapies are being developed, suggesting that leiomyosarcoma subtypes may respond differentially to these targeted therapies. CONCLUSIONS We confirm the existence of 3 molecular subtypes in leiomyosarcoma using two independent datasets and show that the different molecular subtypes are associated with distinct clinical outcomes. The findings offer an opportunity for treating leiomyosarcoma in a subtype-specific targeted approach.
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Affiliation(s)
- Xiangqian Guo
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Vickie Y Jo
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Anne M Mills
- Department of Pathology, University of Virginia, Charlottesville, Virginia
| | - Shirley X Zhu
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Cheng-Han Lee
- Division of Anatomical Pathology, Royal Alexandra Hospital, Edmonton, Alberta, Canada
| | - Inigo Espinosa
- Department of Pathology, Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | - Marisa R Nucci
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Sushama Varma
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Erna Forgó
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Trevor Hastie
- Department of Statistics, Stanford University, Stanford, California
| | - Sharon Anderson
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Kristen Ganjoo
- Stanford Comprehensive Cancer Center, Stanford University, Stanford, California
| | - Andrew H Beck
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Robert B West
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Christopher D Fletcher
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Matt van de Rijn
- Department of Pathology, Stanford University School of Medicine, Stanford, California.
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16
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Demicco EG, Boland GM, Brewer Savannah KJ, Lusby K, Young ED, Ingram D, Watson KL, Bailey M, Guo X, Hornick JL, van de Rijn M, Wang WL, Torres KE, Lev D, Lazar AJ. Progressive loss of myogenic differentiation in leiomyosarcoma has prognostic value. Histopathology 2015; 66:627-38. [PMID: 24889065 DOI: 10.1111/his.12466] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 05/24/2014] [Indexed: 01/15/2023]
Abstract
AIMS Well-differentiated leiomyosarcomas show morphologically recognizable smooth muscle differentiation, whereas poorly differentiated tumours may form a spectrum with a subset of undifferentiated pleomorphic sarcomas. The expression of certain muscle markers has been reported to have prognostic impact. We investigated the correlation between the morphological spectrum and the muscle marker expression profile of leiomyosarcoma, and the impact of these factors on patient outcomes. METHODS AND RESULTS Tissue microarrays including 202 non-uterine and 181 uterine leiomyosarcomas with a spectrum of tumour morphologies were evaluated for expression of immunohistochemical markers of muscle differentiation. Poorly differentiated tumours frequently lost one or more conventional smooth muscle markers [smooth muscle actin, desmin, h-caldesmon, and smooth muscle myosin (P < 0.0001)], as well as the more recently described markers SLMAP, MYLK, and ACTG2 (P < 0.0001). In primary tumours, both desmin and CFL2 expression predicted improved overall survival in multivariate analyses (P = 0.0111 and P = 0.043, respectively). Patients with muscle marker-enriched tumours (expressing all four conventional markers or any three of ACTG2, CFL2, CASQ2, MYLK, and SLMAP) had improved overall survival (P < 0.05) in univariate analyses. CONCLUSIONS Morphologically and immunohistochemically, poorly differentiated leiomyosarcomas can masquerade as undifferentiated pleomorphic sarcomas with progressive loss of muscle markers. The expression of muscle markers has prognostic significance in primary leiomyosarcomas independently of tumour morphology.
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Affiliation(s)
- Elizabeth G Demicco
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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17
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Villacis RAR, Silveira SM, Barros-Filho MC, Marchi FA, Domingues MAC, Scapulatempo-Neto C, Aguiar S, Lopes A, Cunha IW, Rogatto SR. Gene expression profiling in leiomyosarcomas and undifferentiated pleomorphic sarcomas: SRC as a new diagnostic marker. PLoS One 2014; 9:e102281. [PMID: 25028927 PMCID: PMC4100821 DOI: 10.1371/journal.pone.0102281] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 06/17/2014] [Indexed: 12/15/2022] Open
Abstract
Background Undifferentiated Pleomorphic Sarcoma (UPS) and high-grade Leiomyosarcoma (LMS) are soft tissue tumors with an aggressive clinical behavior, frequently developing local recurrence and distant metastases. Despite several gene expression studies involving soft tissue sarcomas, the potential to identify molecular markers has been limited, mostly due to small sample size, in-group heterogeneity and absence of detailed clinical data. Materials and Methods Gene expression profiling was performed for 22 LMS and 22 UPS obtained from untreated patients. To assess the relevance of the gene signature, a meta-analysis was performed using five published studies. Four genes (BAD, MYOCD, SRF and SRC) selected from the gene signature, meta-analysis and functional in silico analysis were further validated by quantitative PCR. In addition, protein-protein interaction analysis was applied to validate the data. SRC protein immunolabeling was assessed in 38 UPS and 52 LMS. Results We identified 587 differentially expressed genes between LMS and UPS, of which 193 corroborated with other studies. Cluster analysis of the data failed to discriminate LMS from UPS, although it did reveal a distinct molecular profile for retroperitoneal LMS, which was characterized by the over-expression of smooth muscle-specific genes. Significantly higher levels of expression for BAD, SRC, SRF, and MYOCD were confirmed in LMS when compared with UPS. SRC was the most value discriminator to distinguish both sarcomas and presented the highest number of interaction in the in silico protein-protein analysis. SRC protein labeling showed high specificity and a positive predictive value therefore making it a candidate for use as a diagnostic marker in LMS. Conclusions Retroperitoneal LMS presented a unique gene signature. SRC is a putative diagnostic marker to differentiate LMS from UPS.
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Affiliation(s)
- Rolando A. R. Villacis
- Neogene Laboratory, Research Center (CIPE), A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Sara M. Silveira
- Neogene Laboratory, Research Center (CIPE), A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Mateus C. Barros-Filho
- Neogene Laboratory, Research Center (CIPE), A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Fabio A. Marchi
- Inter-Institutional Grad Program on Bioinformatics, Mathematics and Statistics Institute, USP - University of São Paulo, São Paulo, Brazil
| | - Maria A. C. Domingues
- Department of Pathology, School of Medicine, UNESP - São Paulo State University, Botucatu, São Paulo, Brazil
| | | | - Samuel Aguiar
- Department of Pelvic Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Ademar Lopes
- Department of Pelvic Surgery, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Isabela W. Cunha
- Department of Pathology, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Silvia R. Rogatto
- Neogene Laboratory, Research Center (CIPE), A. C. Camargo Cancer Center, São Paulo, Brazil
- Department of Urology, School of Medicine, UNESP - São Paulo State University, Botucatu, São Paulo, Brazil
- * E-mail:
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18
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Pérot G, Mendiboure J, Brouste V, Velasco V, Terrier P, Bonvalot S, Guillou L, Ranchère-Vince D, Aurias A, Coindre JM, Chibon F. Smooth muscle differentiation identifies two classes of poorly differentiated pleomorphic sarcomas with distinct outcome. Mod Pathol 2014; 27:840-50. [PMID: 24287457 DOI: 10.1038/modpathol.2013.205] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 09/09/2013] [Indexed: 01/01/2023]
Abstract
The clinical relevance of accurately diagnosing pleomorphic sarcomas has been shown, especially in cases of undifferentiated pleomorphic sarcomas with myogenic differentiation, which appear significantly more aggressive. To establish a new smooth muscle differentiation classification and to test its prognostic value, 412 sarcomas with complex genetics were examined by immunohistochemistry using four smooth muscle markers (calponin, h-caldesmon, transgelin and smooth muscle actin). Two tumor categories were first defined: tumors with positivity for all four markers and tumors with no or incomplete phenotypes. Multivariate analysis demonstrated that this classification method exhibited the strongest prognostic value compared with other prognostic factors, including histological classification. Secondly, incomplete or absent smooth muscle phenotype tumor group was then divided into subgroups by summing for each tumor the labeling intensities of all four markers for each tumors. A subgroup of tumors with an incomplete but strong smooth muscle differentiation phenotype presenting an intermediate metastatic risk was thus identified. Collectively, our results show that the smooth muscle differentiation classification method may be a useful diagnostic tool as well as a relevant prognostic tool for undifferentiated pleomorphic sarcomas.
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Affiliation(s)
- Gaëlle Pérot
- 1] Institut Bergonié, Department of Pathology, Bordeaux, France [2] INSERM U916, Bordeaux, France
| | - Jean Mendiboure
- Institut Bergonié, Clinical and Epidemiological Research Unit, Bordeaux, France
| | - Véronique Brouste
- Institut Bergonié, Clinical and Epidemiological Research Unit, Bordeaux, France
| | - Valérie Velasco
- Institut Bergonié, Department of Pathology, Bordeaux, France
| | - Philippe Terrier
- Institut Gustave Roussy, Department of Pathology, Villejuif, France
| | - Sylvie Bonvalot
- Institut Gustave Roussy, Department of Surgery, Villejuif, France
| | - Louis Guillou
- University Institute of Pathology, CHUV, Lausanne, Switzerland
| | | | - Alain Aurias
- 1] Institut Bergonié, Department of Pathology, Bordeaux, France [2] INSERM U916, Bordeaux, France
| | - Jean-Michel Coindre
- 1] Institut Bergonié, Department of Pathology, Bordeaux, France [2] INSERM U916, Bordeaux, France
| | - Frédéric Chibon
- 1] Institut Bergonié, Department of Pathology, Bordeaux, France [2] INSERM U916, Bordeaux, France
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Davidson B, Abeler VM, Førsund M, Holth A, Yang Y, Kobayashi Y, Chen L, Kristensen GB, Shih IM, Wang TL. Gene expression signatures of primary and metastatic uterine leiomyosarcoma. Hum Pathol 2013; 45:691-700. [PMID: 24485798 DOI: 10.1016/j.humpath.2013.11.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/30/2013] [Accepted: 11/01/2013] [Indexed: 12/11/2022]
Abstract
Leiomyosarcoma (LMS) is the most common uterine sarcoma. Although the disease is relatively rare, it is responsible for considerable mortality due to frequent metastasis and chemoresistance. The molecular events related to LMS metastasis are unknown to date. The present study compared the global gene expression patterns of primary uterine LMSs and LMS metastases. Gene expression profiles of 13 primary and 15 metastatic uterine LMSs were analyzed using the HumanRef-8 BeadChip from Illumina. Differentially expressed candidate genes were validated using quantitative real-time polymerase chain reaction (PCR) and immunohistochemistry. To identify differently expressed genes between primary and metastatic tumors, we performed one-way analysis of variance with Benjamini-Hochberg correction. This led to identification of 203 unique probes that were significantly differentially expressed in the 2 tumor groups by greater than 1.58-fold with P < .01, of which 94 and 109 were overexpressed in primary and metastatic LMSs, respectively. Genes overexpressed in primary uterine LMSs included OSTN, NLGN4X, NLGN1, SLITRK4, MASP1, XRN2, ASS1, RORB, HRASLS, and TSPAN7. Genes overexpressed in LMS metastases included TNNT1, FOLR3, TDO2, CRYM, GJA1, TSPAN10, THBS1, SGK1, SHMT1, EGR2, and AGT. Quantitative real-time PCR confirmed significant anatomical site-related differences in FOLR3, OSTN, and NLGN4X levels; and immunohistochemistry showed significant differences in TDO2 expression. Gene expression profiling differentiates primary uterine LMSs from LMS metastases. The molecular signatures unique to primary and metastatic LMSs may aid in understanding tumor progression in this cancer and in providing a molecular basis for prognostic studies and therapeutic target discovery.
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Affiliation(s)
- Ben Davidson
- Department of Pathology, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway; The Medical Faculty, University of Oslo, N-0316 Oslo, Norway.
| | - Vera Maria Abeler
- Department of Pathology, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway
| | - Mette Førsund
- Department of Pathology, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway
| | - Arild Holth
- Department of Pathology, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway
| | - Yanqin Yang
- Genomic Core Facility, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yusuke Kobayashi
- Departments of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA; Department of Oncology, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Lily Chen
- Departments of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA; Department of Oncology, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Gunnar B Kristensen
- Department of Gynecologic Oncology, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway; Institute for Medical Informatics, Norwegian Radium Hospital, Oslo University Hospital, N-0424 Oslo, Norway
| | - Ie-Ming Shih
- Departments of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA; Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA
| | - Tian-Li Wang
- Departments of Gynecology and Obstetrics, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA; Department of Oncology, Johns Hopkins Medical Institutions, Baltimore, MD 21231, USA.
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21
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Silveira SM, Villacis RAR, Marchi FA, Barros Filho MDC, Drigo SA, Neto CS, Lopes A, da Cunha IW, Rogatto SR. Genomic signatures predict poor outcome in undifferentiated pleomorphic sarcomas and leiomyosarcomas. PLoS One 2013; 8:e67643. [PMID: 23825676 PMCID: PMC3692486 DOI: 10.1371/journal.pone.0067643] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 05/22/2013] [Indexed: 12/16/2022] Open
Abstract
Undifferentiated high-grade pleomorphic sarcomas (UPSs) display aggressive clinical behavior and frequently develop local recurrence and distant metastasis. Because these sarcomas often share similar morphological patterns with other tumors, particularly leiomyosarcomas (LMSs), classification by exclusion is frequently used. In this study, array-based comparative genomic hybridization (array CGH) was used to analyze 20 UPS and 17 LMS samples from untreated patients. The LMS samples presented a lower frequency of genomic alterations compared with the UPS samples. The most frequently altered UPS regions involved gains at 20q13.33 and 7q22.1 and losses at 3p26.3. Gains at 8q24.3 and 19q13.12 and losses at 9p21.3 were frequently detected in the LMS samples. Of these regions, gains at 1q21.3, 11q12.2-q12.3, 16p11.2, and 19q13.12 were significantly associated with reduced overall survival times in LMS patients. A multivariate analysis revealed that gains at 1q21.3 were an independent prognostic marker of shorter survival times in LMS patients (HR = 13.76; P = 0.019). Although the copy number profiles of the UPS and LMS samples could not be distinguished using unsupervised hierarchical clustering analysis, one of the three clusters presented cases associated with poor prognostic outcome (P = 0.022). A relative copy number analysis for the ARNT, SLC27A3, and PBXIP1 genes was performed using quantitative real-time PCR in 11 LMS and 16 UPS samples. Gains at 1q21-q22 were observed in both tumor types, particularly in the UPS samples. These findings provide strong evidence for the existence of a genomic signature to predict poor outcome in a subset of UPS and LMS patients.
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Affiliation(s)
| | | | - Fabio Albuquerque Marchi
- Institute of Mathematics and Statistics, Inter-Institutional Program on Bioinformatics, USP, São Paulo, São Paulo, Brazil
| | | | | | | | - Ademar Lopes
- Department of Pelvic Surgery, A. C. Camargo Cancer Center, São Paulo, São Paulo, Brazil
| | | | - Silvia Regina Rogatto
- Neogene Laboratory, A. C. Camargo Cancer Center, São Paulo, São Paulo, Brazil
- Department of Urology, Faculty of Medicine, UNESP, Botucatu, São Paulo, Brazil
- * E-mail:
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Neurofibroma of the cervix presenting as cervical stenosis in a patient with neurofibromatosis type 1: a case report. Int J Gynecol Pathol 2012; 31:192-194. [PMID: 22317879 DOI: 10.1097/pgp.0b013e31822b8504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Neurofibromatosis type 1 is an autosomal dominant disorder characterized by the presence of cutaneous and subcutaneous neurofibromas as well as deep-seated plexiform neurofibromas. Although unusual, these lesions have been described in the gynecologic tract, including the cervix; however, when arising in this location, they are commonly asymptomatic or present with lower abdominal pain. Cervical neurofibromas presenting as cervical stenosis have not been described. Awareness by both the clinician and the pathologist of a patient's history is of great help when dealing with a specimen of a patient with neurofibromatosis type 1.
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