' Revolutionary' Data to Be Presented at ESMO 2018'Revolutionary' Data to Be Presented at ESMO 2018

Evolutions and even revolutions are expected when the latest data in head and neck cancer, renal cell carcinoma, breast cancer, and ovarian cancer are presented at the leading European cancer meeting.Medscape Medical News
Source: Medscape Medical News Headlines - Category: Consumer Health News Tags: Hematology-Oncology News Source Type: news

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Abstract DNA methylation is a process by which methyl groups are added to cytosine or adenine. DNA methylation can change the activity of the DNA molecule without changing the sequence. Methylation of 5-methylcytosine (5mC) is widespread in both eukaryotes and prokaryotes, and it is a very important epigenetic modification event, which can regulate gene activity and influence a number of key processes such as genomic imprinting, cell differentiation, transcriptional regulation, and chromatin remodeling. Profiling DNA methylation across the genome is critical to understanding the influence of methylation in normal ...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract This chapter addresses the problem of reconstructing regulatory networks in molecular biology by integrating multiple sources of data. We consider data sets measured from diverse technologies all related to the same set of variables and individuals. This situation is becoming more and more common in molecular biology, for instance, when both proteomic and transcriptomic data related to the same set of "genes" are available on a given cohort of patients.To infer a consensus network that integrates both proteomic and transcriptomic data, we introduce a multivariate extension of Gaussian graphical ...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract Over the last several decades, multiple recurrent chromosomal amplifications and deletions have been detected in a large number of cancers. These regions of amplification and deletion can encompass a few to several hundred genes. Determining which of these genes is causing the outgrowth of the cancer is difficult. Complicating the analysis is the fact that several genes within the affected chromosomal region may cooperate to promote tumorigenesis. In this protocol we describe a method of chromosomal engineering in mice that allows modeling of chromosomal duplications and deficiencies. This method faithful...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract Transposon mutagenesis has emerged as a powerful methodology for functionally annotating cancer genomes. Although in vivo transposon-mediated forward genetic screens have proven to be valuable for cancer gene identification, they are also time consuming and resource intensive. To facilitate the rapid and cost-effective identification of genes that regulate tumor-promoting pathways, we developed a complementary ex vivo transposon mutagenesis approach wherein human or mouse cells growing in culture are mutagenized and screened for the acquisition of specific phenotypes in vitro or in vivo, such as growth fa...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract Since the advent of large-scale, detailed descriptive cancer genomics studies at the beginning of the century, such as The Cancer Genome Atlas (TCGA), labs around the world have been working to make this data useful. Data like these can be made more useful by comparison with complementary functional genomic data. One new example is the application of CRISPR/Cas9-based library screening for cancer-related traits in cell lines. Such screens can reveal genome-wide suppressors of tumorigenesis and metastasis. Here we describe the use of widely available lentiviral libraries for such screens in cultured cell l...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract In this protocol, pooled sgRNA libraries targeting thousands of genes are computationally designed, generated using microarray-based synthesis techniques, and packaged into lentiviral particles. Target cells of interest are transduced with the lentiviral sgRNA pools to generate a collection of knockout mutants-via Cas9-mediated genomic cleavage-and screened for a phenotype of interest. The relative abundance of each mutant in the population can be monitored over time through high-throughput sequencing of the integrated sgRNA expression cassettes. Using this technique, we outline strategies for the identif...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract The tissue engineering method of decellularization and recellularization has been successfully used in a variety of regenerative medicine applications. The protocols used to de/recellularize various organs and tissues are largely different. Here we describe a method to effectively engineer a bioartificial colon by completely removing original cells from human intestinal tissues followed by repopulating the acellular tissue matrix with cell cultures. This method provides a novel approach for human intestinal regeneration and can be used to identify potential cancer driver genes. PMID: 30542993 [PubMed - in process]
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Abstract Here we describe a method for identifying genes and genetic pathways responsible for chemoresistance in cancer cells. The method is based on generation and characterization of matched pairs of chemotherapy-sensitive/chemotherapy-resistant cancer cell lines. In this protocol we are using endometrial cancer cell lines treated with carboplatin and paclitaxel, which are first-line chemotherapies for gynecologic malignancies. The chemoresistant cells and their chemosensitive counterparts are used for downstream applications including bulk RNA-sequencing analysis to identify a set of genes and pathways that are...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research
Authors: Surov A, Meyer HJ, Wienke A Abstract The purpose of this meta-analysis was to provide clinical evidence regarding relationship between ADC and cellularity in different tumors based on large patient data.Medline library was screened for associations between ADC and cell count in different tumors up to September 2016. Only publications in English were extracted. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement (PRISMA) was used for the research.Overall, 39 publications with 1530 patients were included into the analysis. The following data were extracted from the literature: au...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Conclusion The different primaries seem to metastasize in different frequencies to the head and neck area. The relatively common prostate cancer rarely seems to produce metastases in the head and neck area compared to cancers arising in the kidneys. In case of a malignant tumour of unknown primary, osseous metastases most often are caused by breast or lung cancer or renal cell carcinoma. Soft tissue metastases are most often caused by breast cancer.
Source: Journal of Maxillofacial and Oral Surgery - Category: ENT & OMF Source Type: research
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