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1.
Nucleic Acids Res ; 47(D1): D941-D947, 2019 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-30371878

RESUMO

COSMIC, the Catalogue Of Somatic Mutations In Cancer (https://cancer.sanger.ac.uk) is the most detailed and comprehensive resource for exploring the effect of somatic mutations in human cancer. The latest release, COSMIC v86 (August 2018), includes almost 6 million coding mutations across 1.4 million tumour samples, curated from over 26 000 publications. In addition to coding mutations, COSMIC covers all the genetic mechanisms by which somatic mutations promote cancer, including non-coding mutations, gene fusions, copy-number variants and drug-resistance mutations. COSMIC is primarily hand-curated, ensuring quality, accuracy and descriptive data capture. Building on our manual curation processes, we are introducing new initiatives that allow us to prioritize key genes and diseases, and to react more quickly and comprehensively to new findings in the literature. Alongside improvements to the public website and data-download systems, new functionality in COSMIC-3D allows exploration of mutations within three-dimensional protein structures, their protein structural and functional impacts, and implications for druggability. In parallel with COSMIC's deep and broad variant coverage, the Cancer Gene Census (CGC) describes a curated catalogue of genes driving every form of human cancer. Currently describing 719 genes, the CGC has recently introduced functional descriptions of how each gene drives disease, summarized into the 10 cancer Hallmarks.


Assuntos
Bases de Dados de Ácidos Nucleicos , Mutação , Neoplasias/genética , Genes , Humanos , Conformação Proteica
2.
Nucleic Acids Res ; 45(D1): D777-D783, 2017 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-27899578

RESUMO

COSMIC, the Catalogue of Somatic Mutations in Cancer (http://cancer.sanger.ac.uk) is a high-resolution resource for exploring targets and trends in the genetics of human cancer. Currently the broadest database of mutations in cancer, the information in COSMIC is curated by expert scientists, primarily by scrutinizing large numbers of scientific publications. Over 4 million coding mutations are described in v78 (September 2016), combining genome-wide sequencing results from 28 366 tumours with complete manual curation of 23 489 individual publications focused on 186 key genes and 286 key fusion pairs across all cancers. Molecular profiling of large tumour numbers has also allowed the annotation of more than 13 million non-coding mutations, 18 029 gene fusions, 187 429 genome rearrangements, 1 271 436 abnormal copy number segments, 9 175 462 abnormal expression variants and 7 879 142 differentially methylated CpG dinucleotides. COSMIC now details the genetics of drug resistance, novel somatic gene mutations which allow a tumour to evade therapeutic cancer drugs. Focusing initially on highly characterized drugs and genes, COSMIC v78 contains wide resistance mutation profiles across 20 drugs, detailing the recurrence of 301 unique resistance alleles across 1934 drug-resistant tumours. All information from the COSMIC database is available freely on the COSMIC website.


Assuntos
Bases de Dados Genéticas , Mutação , Neoplasias/genética , Biologia Computacional/métodos , Resistencia a Medicamentos Antineoplásicos/genética , Genoma Humano , Estudo de Associação Genômica Ampla/métodos , Genômica/métodos , Humanos , Navegador
3.
Nucleic Acids Res ; 45(D1): D985-D994, 2017 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-27899665

RESUMO

We have designed and developed a data integration and visualization platform that provides evidence about the association of known and potential drug targets with diseases. The platform is designed to support identification and prioritization of biological targets for follow-up. Each drug target is linked to a disease using integrated genome-wide data from a broad range of data sources. The platform provides either a target-centric workflow to identify diseases that may be associated with a specific target, or a disease-centric workflow to identify targets that may be associated with a specific disease. Users can easily transition between these target- and disease-centric workflows. The Open Targets Validation Platform is accessible at https://www.targetvalidation.org.


Assuntos
Biologia Computacional/métodos , Terapia de Alvo Molecular , Ferramenta de Busca , Software , Bases de Dados Factuais , Humanos , Terapia de Alvo Molecular/métodos , Reprodutibilidade dos Testes , Navegador , Fluxo de Trabalho
4.
Nucleic Acids Res ; 43(Database issue): D805-11, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25355519

RESUMO

COSMIC, the Catalogue Of Somatic Mutations In Cancer (http://cancer.sanger.ac.uk) is the world's largest and most comprehensive resource for exploring the impact of somatic mutations in human cancer. Our latest release (v70; Aug 2014) describes 2 002 811 coding point mutations in over one million tumor samples and across most human genes. To emphasize depth of knowledge on known cancer genes, mutation information is curated manually from the scientific literature, allowing very precise definitions of disease types and patient details. Combination of almost 20,000 published studies gives substantial resolution of how mutations and phenotypes relate in human cancer, providing insights into the stratification of mutations and biomarkers across cancer patient populations. Conversely, our curation of cancer genomes (over 12,000) emphasizes knowledge breadth, driving discovery of unrecognized cancer-driving hotspots and molecular targets. Our high-resolution curation approach is globally unique, giving substantial insight into molecular biomarkers in human oncology. In addition, COSMIC also details more than six million noncoding mutations, 10,534 gene fusions, 61,299 genome rearrangements, 695,504 abnormal copy number segments and 60,119,787 abnormal expression variants. All these types of somatic mutation are annotated to both the human genome and each affected coding gene, then correlated across disease and mutation types.


Assuntos
Bases de Dados de Ácidos Nucleicos , Genes Neoplásicos , Mutação , Neoplasias/genética , Genoma Humano , Humanos , Internet
5.
Nucleic Acids Res ; 43(W1): W589-98, 2015 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-25897122

RESUMO

The BioMart Community Portal (www.biomart.org) is a community-driven effort to provide a unified interface to biomedical databases that are distributed worldwide. The portal provides access to numerous database projects supported by 30 scientific organizations. It includes over 800 different biological datasets spanning genomics, proteomics, model organisms, cancer data, ontology information and more. All resources available through the portal are independently administered and funded by their host organizations. The BioMart data federation technology provides a unified interface to all the available data. The latest version of the portal comes with many new databases that have been created by our ever-growing community. It also comes with better support and extensibility for data analysis and visualization tools. A new addition to our toolbox, the enrichment analysis tool is now accessible through graphical and web service interface. The BioMart community portal averages over one million requests per day. Building on this level of service and the wealth of information that has become available, the BioMart Community Portal has introduced a new, more scalable and cheaper alternative to the large data stores maintained by specialized organizations.


Assuntos
Sistemas de Gerenciamento de Base de Dados , Genômica , Humanos , Internet , Neoplasias/genética , Proteômica
6.
Nature ; 463(7279): 360-3, 2010 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-20054297

RESUMO

Clear cell renal cell carcinoma (ccRCC) is the most common form of adult kidney cancer, characterized by the presence of inactivating mutations in the VHL gene in most cases, and by infrequent somatic mutations in known cancer genes. To determine further the genetics of ccRCC, we have sequenced 101 cases through 3,544 protein-coding genes. Here we report the identification of inactivating mutations in two genes encoding enzymes involved in histone modification-SETD2, a histone H3 lysine 36 methyltransferase, and JARID1C (also known as KDM5C), a histone H3 lysine 4 demethylase-as well as mutations in the histone H3 lysine 27 demethylase, UTX (KMD6A), that we recently reported. The results highlight the role of mutations in components of the chromatin modification machinery in human cancer. Furthermore, NF2 mutations were found in non-VHL mutated ccRCC, and several other probable cancer genes were identified. These results indicate that substantial genetic heterogeneity exists in a cancer type dominated by mutations in a single gene, and that systematic screens will be key to fully determining the somatic genetic architecture of cancer.


Assuntos
Carcinoma de Células Renais/genética , Genes da Neurofibromatose 2 , Histona-Lisina N-Metiltransferase/genética , Histonas/metabolismo , Neoplasias Renais/genética , Proteínas Nucleares/genética , Oxirredutases N-Desmetilantes/genética , Carcinoma de Células Renais/patologia , Hipóxia Celular/genética , Cromatina/metabolismo , Regulação Neoplásica da Expressão Gênica , Histona Desmetilases , Humanos , Neoplasias Renais/patologia , Mutação/genética , Análise de Sequência de DNA
7.
Blood ; 122(22): 3616-27; quiz 3699, 2013 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-24030381

RESUMO

Myelodysplastic syndromes (MDS) are a heterogeneous group of chronic hematological malignancies characterized by dysplasia, ineffective hematopoiesis and a variable risk of progression to acute myeloid leukemia. Sequencing of MDS genomes has identified mutations in genes implicated in RNA splicing, DNA modification, chromatin regulation, and cell signaling. We sequenced 111 genes across 738 patients with MDS or closely related neoplasms (including chronic myelomonocytic leukemia and MDS-myeloproliferative neoplasms) to explore the role of acquired mutations in MDS biology and clinical phenotype. Seventy-eight percent of patients had 1 or more oncogenic mutations. We identify complex patterns of pairwise association between genes, indicative of epistatic interactions involving components of the spliceosome machinery and epigenetic modifiers. Coupled with inferences on subclonal mutations, these data suggest a hypothesis of genetic "predestination," in which early driver mutations, typically affecting genes involved in RNA splicing, dictate future trajectories of disease evolution with distinct clinical phenotypes. Driver mutations had equivalent prognostic significance, whether clonal or subclonal, and leukemia-free survival deteriorated steadily as numbers of driver mutations increased. Thus, analysis of oncogenic mutations in large, well-characterized cohorts of patients illustrates the interconnections between the cancer genome and disease biology, with considerable potential for clinical application.


Assuntos
Mutação , Síndromes Mielodisplásicas/genética , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Progressão da Doença , Epistasia Genética , Feminino , Humanos , Leucemia Mieloide Aguda/genética , Leucemia Mielomonocítica Crônica/genética , Masculino , Pessoa de Meia-Idade , Doenças Mieloproliferativas-Mielodisplásicas/genética , Oncogenes , Prognóstico , Splicing de RNA/genética , Spliceossomos/genética
8.
Nucleic Acids Res ; 41(Database issue): D955-61, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23180760

RESUMO

Alterations in cancer genomes strongly influence clinical responses to treatment and in many instances are potent biomarkers for response to drugs. The Genomics of Drug Sensitivity in Cancer (GDSC) database (www.cancerRxgene.org) is the largest public resource for information on drug sensitivity in cancer cells and molecular markers of drug response. Data are freely available without restriction. GDSC currently contains drug sensitivity data for almost 75 000 experiments, describing response to 138 anticancer drugs across almost 700 cancer cell lines. To identify molecular markers of drug response, cell line drug sensitivity data are integrated with large genomic datasets obtained from the Catalogue of Somatic Mutations in Cancer database, including information on somatic mutations in cancer genes, gene amplification and deletion, tissue type and transcriptional data. Analysis of GDSC data is through a web portal focused on identifying molecular biomarkers of drug sensitivity based on queries of specific anticancer drugs or cancer genes. Graphical representations of the data are used throughout with links to related resources and all datasets are fully downloadable. GDSC provides a unique resource incorporating large drug sensitivity and genomic datasets to facilitate the discovery of new therapeutic biomarkers for cancer therapies.


Assuntos
Antineoplásicos/farmacologia , Bases de Dados Genéticas , Neoplasias/genética , Linhagem Celular Tumoral , Gráficos por Computador , Genes Neoplásicos , Marcadores Genéticos , Genômica , Humanos , Internet , Mutação , Neoplasias/tratamento farmacológico
9.
Nat Genet ; 37(6): 590-2, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15908952

RESUMO

We examined the coding sequence of 518 protein kinases, approximately 1.3 Mb of DNA per sample, in 25 breast cancers. In many tumors, we detected no somatic mutations. But a few had numerous somatic mutations with distinctive patterns indicative of either a mutator phenotype or a past exposure.


Assuntos
Neoplasias da Mama/genética , Carcinoma Ductal de Mama/genética , Mutação , Proteínas Quinases/genética , Idoso , Análise Mutacional de DNA , Feminino , Humanos , Família Multigênica
10.
Nature ; 446(7132): 153-8, 2007 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-17344846

RESUMO

Cancers arise owing to mutations in a subset of genes that confer growth advantage. The availability of the human genome sequence led us to propose that systematic resequencing of cancer genomes for mutations would lead to the discovery of many additional cancer genes. Here we report more than 1,000 somatic mutations found in 274 megabases (Mb) of DNA corresponding to the coding exons of 518 protein kinase genes in 210 diverse human cancers. There was substantial variation in the number and pattern of mutations in individual cancers reflecting different exposures, DNA repair defects and cellular origins. Most somatic mutations are likely to be 'passengers' that do not contribute to oncogenesis. However, there was evidence for 'driver' mutations contributing to the development of the cancers studied in approximately 120 genes. Systematic sequencing of cancer genomes therefore reveals the evolutionary diversity of cancers and implicates a larger repertoire of cancer genes than previously anticipated.


Assuntos
Genes Neoplásicos/genética , Genoma Humano/genética , Genômica , Mutação/genética , Neoplasias/genética , Sequência de Aminoácidos , Análise Mutacional de DNA , Humanos , Dados de Sequência Molecular , Proteínas de Neoplasias/química , Proteínas de Neoplasias/genética , Proteínas Quinases/química , Proteínas Quinases/genética
11.
Nucleic Acids Res ; 39(Database issue): D945-50, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20952405

RESUMO

COSMIC (http://www.sanger.ac.uk/cosmic) curates comprehensive information on somatic mutations in human cancer. Release v48 (July 2010) describes over 136,000 coding mutations in almost 542,000 tumour samples; of the 18,490 genes documented, 4803 (26%) have one or more mutations. Full scientific literature curations are available on 83 major cancer genes and 49 fusion gene pairs (19 new cancer genes and 30 new fusion pairs this year) and this number is continually increasing. Key amongst these is TP53, now available through a collaboration with the IARC p53 database. In addition to data from the Cancer Genome Project (CGP) at the Sanger Institute, UK, and The Cancer Genome Atlas project (TCGA), large systematic screens are also now curated. Major website upgrades now make these data much more mineable, with many new selection filters and graphics. A Biomart is now available allowing more automated data mining and integration with other biological databases. Annotation of genomic features has become a significant focus; COSMIC has begun curating full-genome resequencing experiments, developing new web pages, export formats and graphics styles. With all genomic information recently updated to GRCh37, COSMIC integrates many diverse types of mutation information and is making much closer links with Ensembl and other data resources.


Assuntos
Bases de Dados de Ácidos Nucleicos , Genoma Humano , Mutação , Neoplasias/genética , Linhagem Celular Tumoral , Mineração de Dados , Humanos , Interface Usuário-Computador
12.
Nucleic Acids Res ; 38(Database issue): D652-7, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19906727

RESUMO

The catalogue of Somatic Mutations in Cancer (COSMIC) (http://www.sanger.ac.uk/cosmic/) is the largest public resource for information on somatically acquired mutations in human cancer and is available freely without restrictions. Currently (v43, August 2009), COSMIC contains details of 1.5-million experiments performed through 13,423 genes in almost 370,000 tumours, describing over 90,000 individual mutations. Data are gathered from two sources, publications in the scientific literature, (v43 contains 7797 curated articles) and the full output of the genome-wide screens from the Cancer Genome Project (CGP) at the Sanger Institute, UK. Most of the world's literature on point mutations in human cancer has now been curated into COSMIC and while this is continually updated, a greater emphasis on curating fusion gene mutations is driving the expansion of this information; over 2700 fusion gene mutations are now described. Whole-genome sequencing screens are now identifying large numbers of genomic rearrangements in cancer and COSMIC is now displaying details of these analyses also. Examination of COSMIC's data is primarily web-driven, focused on providing mutation range and frequency statistics based upon a choice of gene and/or cancer phenotype. Graphical views provide easily interpretable summaries of large quantities of data, and export functions can provide precise details of user-selected data.


Assuntos
Biologia Computacional/métodos , Bases de Dados Genéticas , Bases de Dados de Ácidos Nucleicos , Mutação , Neoplasias/genética , Acesso à Informação , Biologia Computacional/tendências , Gráficos por Computador , Bases de Dados de Proteínas , Genoma Humano , Humanos , Armazenamento e Recuperação da Informação/métodos , Internet , Software
13.
Nature ; 431(7008): 525-6, 2004 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-15457249

RESUMO

The protein-kinase family is the most frequently mutated gene family found in human cancer and faulty kinase enzymes are being investigated as promising targets for the design of antitumour therapies. We have sequenced the gene encoding the transmembrane protein tyrosine kinase ERBB2 (also known as HER2 or Neu) from 120 primary lung tumours and identified 4% that have mutations within the kinase domain; in the adenocarcinoma subtype of lung cancer, 10% of cases had mutations. ERBB2 inhibitors, which have so far proved to be ineffective in treating lung cancer, should now be clinically re-evaluated in the specific subset of patients with lung cancer whose tumours carry ERBB2 mutations.


Assuntos
Neoplasias Pulmonares/genética , Mutação/genética , Receptor ErbB-2/genética , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/genética , Análise Mutacional de DNA , Ativação Enzimática , Receptores ErbB/química , Receptores ErbB/genética , Gefitinibe , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Modelos Moleculares , Neoplasias/tratamento farmacológico , Neoplasias/genética , Estrutura Terciária de Proteína , Quinazolinas/uso terapêutico , Receptor ErbB-2/química , Receptor ErbB-2/metabolismo
14.
PLoS One ; 14(7): e0219935, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31323058

RESUMO

Genomics and genome screening are proving central to the study of cancer. However, a good appreciation of the protein structures coded by cancer genes is also invaluable, especially for the understanding of functions, for assessing ligandability of potential targets, and for designing new drugs. To complement the wealth of information on the genetics of cancer in COSMIC, the most comprehensive database for cancer somatic mutations available, structural information obtained experimentally has been brought together recently in COSMIC-3D. Even where structural information is available for a gene in the Cancer Gene Census, a list of genes in COSMIC with substantial evidence supporting their impacts in cancer, this information is quite often for a single domain in a larger protein or for a single protomer in a multiprotein assembly. Here, we show that over 60% of the genes included in the Cancer Gene Census are predicted to possess multiple domains. Many are also multicomponent and membrane-associated molecular assemblies, with mutations recorded in COSMIC affecting such assemblies. However, only 469 of the gene products have a structure represented in the PDB, and of these only 87 structures have 90-100% coverage over the sequence and 69 have less than 10% coverage. As a first step to bridging gaps in our knowledge in the many cases where individual protein structures and domains are lacking, we discuss our attempts of protein structure modelling using our pipeline and investigating the effects of mutations using two of our in-house methods (SDM2 and mCSM) and identifying potential driver mutations. This allows us to begin to understand the effects of mutations not only on protein stability but also on protein-protein, protein-ligand and protein-nucleic acid interactions. In addition, we consider ways to combine the structural information with the wealth of mutation data available in COSMIC. We discuss the impacts of COSMIC missense mutations on protein structure in order to identify and assess the molecular consequences of cancer-driving mutations.


Assuntos
Biomarcadores Tumorais , Biologia Computacional , Genômica , Mutação de Sentido Incorreto , Neoplasias/genética , Biologia Computacional/métodos , Bases de Dados Genéticas , Genômica/métodos , Humanos , Ligantes , Modelos Moleculares , Neoplasias/diagnóstico , Proteínas Oncogênicas/química , Proteínas Oncogênicas/genética , Proteínas Oncogênicas/metabolismo , Conformação Proteica , Relação Estrutura-Atividade
15.
Int Marit Health ; 70(1): 27-41, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30931515

RESUMO

The safety and health of sailors offshore is of major concern. World Sailing (WS) and International Maritime Health Association (IMHA) are taking seriously the potential dangers to the safety and health at sea. By the nature of their sport, the sailors racing in offshore racing environment can be exposed to injuries and other health problems that can endanger their lives. Being aware of the potential dangers caused by the distance from onshore health facilities and lack of professional help on board, IMHA and WS decided to support the activities that are leading to the enhancement of safety and health protection on board. With common initiative, joint Workgroup on Medical Support in Offshore Racing has been formed and the series of workshop organised. The WS/IMHA Workgroup on Medical Support for Offshore Yacht Races previously reached consensus on the common competences and learning outcomes for medical training for offshore racing. In addition, the Workgroup has also set standards for required medical kit inventory for yachts par- ticipating in the various categories of offshore yacht races. Documents were both approved by WS Medical Commission and the IMHA Board. Fourth workshop on Medical Support for Offshore Yacht Races was held in London, United Kingdom, 1-2 December 2018 and workgroup reached consensus on the standards for availability of Telemedical Advice Services (TMAS) for the various categories of offshore yacht races held under the authority of WS. This position paper sets out how the TMAS should be integrated with the practical usage of medicines and medical equipment on board offshore racing yachts. In addition, this position paper also sets out how the level of medical training integrates with appropriate use of the TMAS. Overall, the three WS/IMHA position papers on the triad of medical inventories, medical training and TMAS, are aimed at providing the best possible medical care on offshore racing yachts, by fully integrating each part of the triad of medical support.


Assuntos
Medicina Naval/métodos , Navios , Medicina Esportiva/métodos , Telemedicina/organização & administração , Traumatismos em Atletas/terapia , Humanos , Medicina Naval/instrumentação , Medicina Esportiva/instrumentação , Telemedicina/métodos
16.
Cancer Res ; 66(8): 3987-91, 2006 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-16618716

RESUMO

Malignant gliomas have a very poor prognosis. The current standard of care for these cancers consists of extended adjuvant treatment with the alkylating agent temozolomide after surgical resection and radiotherapy. Although a statistically significant increase in survival has been reported with this regimen, nearly all gliomas recur and become insensitive to further treatment with this class of agents. We sequenced 500 kb of genomic DNA corresponding to the kinase domains of 518 protein kinases in each of nine gliomas. Large numbers of somatic mutations were observed in two gliomas recurrent after alkylating agent treatment. The pattern of mutations in these cases showed strong similarity to that induced by alkylating agents in experimental systems. Further investigation revealed inactivating somatic mutations of the mismatch repair gene MSH6 in each case. We propose that inactivating somatic mutations of MSH6 confer resistance to alkylating agents in gliomas in vivo and concurrently unleash accelerated mutagenesis in resistant clones as a consequence of continued exposure to alkylating agents in the presence of defective mismatch repair. The evidence therefore suggests that when MSH6 is inactivated in gliomas, alkylating agents convert from induction of tumor cell death to promotion of neoplastic progression. These observations highlight the potential of large scale sequencing for revealing and elucidating mutagenic processes operative in individual human cancers.


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Neoplasias Encefálicas/genética , Proteínas de Ligação a DNA/genética , Dacarbazina/análogos & derivados , Glioma/genética , Mutação , Recidiva Local de Neoplasia/genética , Idoso , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/enzimologia , Dacarbazina/uso terapêutico , Feminino , Glioma/tratamento farmacológico , Glioma/enzimologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/enzimologia , Proteínas Quinases/genética , Temozolomida
17.
Nat Rev Cancer ; 18(11): 696-705, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30293088

RESUMO

The Catalogue of Somatic Mutations in Cancer (COSMIC) Cancer Gene Census (CGC) is an expert-curated description of the genes driving human cancer that is used as a standard in cancer genetics across basic research, medical reporting and pharmaceutical development. After a major expansion and complete re-evaluation, the 2018 CGC describes in detail the effect of 719 cancer-driving genes. The recent expansion includes functional and mechanistic descriptions of how each gene contributes to disease generation in terms of the key cancer hallmarks and the impact of mutations on gene and protein function. These functional characteristics depict the extraordinary complexity of cancer biology and suggest multiple cancer-related functions for many genes, which are often highly tissue-dependent or tumour stage-dependent. The 2018 CGC encompasses a second tier, describing an expanding list of genes (currently 145) from more recent cancer studies that show supportive but less detailed indications of a role in cancer.


Assuntos
Mutação/genética , Neoplasias/genética , Neoplasias/patologia , Censos , Humanos , Neoplasias/terapia
18.
Cancer Res ; 65(17): 7591-5, 2005 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-16140923

RESUMO

Protein kinases are frequently mutated in human cancer and inhibitors of mutant protein kinases have proven to be effective anticancer drugs. We screened the coding sequences of 518 protein kinases (approximately 1.3 Mb of DNA per sample) for somatic mutations in 26 primary lung neoplasms and seven lung cancer cell lines. One hundred eighty-eight somatic mutations were detected in 141 genes. Of these, 35 were synonymous (silent) changes. This result indicates that most of the 188 mutations were "passenger" mutations that are not causally implicated in oncogenesis. However, an excess of approximately 40 nonsynonymous substitutions compared with that expected by chance (P = 0.07) suggests that some nonsynonymous mutations have been selected and are contributing to oncogenesis. There was considerable variation between individual lung cancers in the number of mutations observed and no mutations were found in lung carcinoids. The mutational spectra of most lung cancers were characterized by a high proportion of C:G > A:T transversions, compatible with the mutagenic effects of tobacco carcinogens. However, one neuroendocrine cancer cell line had a distinctive mutational spectrum reminiscent of UV-induced DNA damage. The results suggest that several mutated protein kinases may be contributing to lung cancer development, but that mutations in each one are infrequent.


Assuntos
Neoplasias Pulmonares/enzimologia , Neoplasias Pulmonares/genética , Mutação , Proteínas Quinases/genética , Adenocarcinoma/enzimologia , Adenocarcinoma/genética , Tumor Carcinoide/enzimologia , Tumor Carcinoide/genética , Carcinoma de Células Grandes/enzimologia , Carcinoma de Células Grandes/genética , Carcinoma de Células Escamosas/enzimologia , Carcinoma de Células Escamosas/genética , Linhagem Celular Tumoral , Análise Mutacional de DNA , Humanos
19.
Mol Cancer Ther ; 5(11): 2606-12, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17088437

RESUMO

The panel of 60 human cancer cell lines (the NCI-60) assembled by the National Cancer Institute for anticancer drug discovery is a widely used resource. The NCI-60 has been characterized pharmacologically and at the molecular level more extensively than any other set of cell lines. However, no systematic mutation analysis of genes causally implicated in oncogenesis has been reported. This study reports the sequence analysis of 24 known cancer genes in the NCI-60 and an assessment of 4 of the 24 genes for homozygous deletions. One hundred thirty-seven oncogenic mutations were identified in 14 (APC, BRAF, CDKN2, CTNNB1, HRAS, KRAS, NRAS, SMAD4, PIK3CA, PTEN, RB1, STK11, TP53, and VHL) of the 24 genes. All lines have at least one mutation among the cancer genes examined, with most lines (73%) having more than one. Identification of those cancer genes mutated in the NCI-60, in combination with pharmacologic and molecular profiles of the cells, will allow for more informed interpretation of anticancer agent screening and will enhance the use of the NCI-60 cell lines for molecularly targeted screens.


Assuntos
Linhagem Celular Tumoral , Genes Neoplásicos , Mutação , Análise Mutacional de DNA , Éxons , Deleção de Genes , Perfilação da Expressão Gênica , Homozigoto , Humanos , Sítios de Splice de RNA
20.
Cancer Biol Ther ; 5(8): 928-32, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16969076

RESUMO

An activating point mutation in codon 12 of the HRAS gene was the first somatic point mutation identified in a human cancer and established the role of somatic mutations as the common driver of oncogenesis. Since then, there have been over 11,000 mutations in the three RAS (HRAS, KRAS and NRAS) genes in codons 12, 13 and 61 reported in the literature. We report here the identification of recurrent somatic missense mutations at alanine 146, a highly conserved residue in the guanine nucleotide binding domain. In two independent series of colorectal cancers from Hong Kong and the United States we detected KRAS A146 mutations in 7/126 and 2/94 cases, respectively, giving a combined frequency of 4%. We also detected KRAS A146 mutations in 2/40 (5%) colorectal cell lines, including the NCI-60 colorectal cancer line HCC2998. Codon 146 mutations thus are likely to make an equal or greater contribution to colorectal cancer than codon 61 mutations (4.2% in our combined series, 1% in the literature). Lung adenocarcinomas and large cell carcinomas did not show codon 146 mutations. We did, however, identify a KRAS A146 mutation in the ML-2 acute myeloid leukemia cell line and an NRAS A146 mutation in the NALM-6 B-cell acute lymphoblastic leukemia line, suggesting that the contribution of codon 146 mutations is not entirely restricted to colorectal cancers or to KRAS.


Assuntos
Códon/genética , Neoplasias Colorretais/genética , Genes ras/genética , Mutação Puntual/genética , Adenocarcinoma/genética , Sequência de Aminoácidos , Carcinoma de Células Grandes/genética , Análise Mutacional de DNA , DNA de Neoplasias/genética , Hong Kong , Humanos , Leucemia Mieloide Aguda/genética , Dados de Sequência Molecular , Estadiamento de Neoplasias , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Homologia de Sequência de Aminoácidos , Estados Unidos
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