HER-2/neu amplification testing in breast cancer by multiplex ligation-dependent probe amplification in comparison with immunohistochemistry and in situ hybridization.
CONCLUSION: MLPA is a fast, accurate and cheap method to detect breast cancer HER-2/neu amplification in small quantities of DNA extracted from paraffin blocks, and thereby a reliable alternative to FISH and CISH.
PMID: 19096145 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Quantitative fluorescence determination of long-fragment DNA in stool as a marker for the early detection of colorectal cancer.
CONCLUSION: Fecal DNA analysis is a non-invasive and fairly simple test showing high diagnostic potential. These characteristics, together with the small amount of stool required, make it potentially suitable to be used alongside or as an alternative to current non-invasive screening approaches. Our next step will be to validate these results in a large-scale cohort study of a screening population, which is needed prior to implementation into clinical practice.
PMID: 19096146 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Potential biomarkers of colorectal adenoma-dysplasia-carcinoma progression: mRNA expression profiling and in situ protein detection on TMAs reveal 15 sequentially upregulated and 2 downregulated genes.
CONCLUSIONS: Downregulated AMN and PTGDR and upregulated osteopontin and osteonectin were found as potential biomarkers of colorectal carcinogenesis and disease progression to be utilized for prospective biopsy screening both at mRNA and protein levels. Gene alterations identified here may also add to our understanding of CRC progression.
PMID: 19096147 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Genomic profiling by array comparative genomic hybridization reveals novel DNA copy number changes in breast phyllodes tumours.
In this study we used array CGH for genomic profiling of fibroepithelial breast tumours. Whereas most PT showed chromosomal instability, fibroadenomas lacked copy number changes. Some copy number aberrations had not previously been associated with PT. Several well-known cancer related genes, such as TP53 and members of the Cadherin, reside within the recurrent regions of copy number alteration. Since copy number change was found in all benign PT, genomic instability may be an early event in PT genesis.
PMID: 19096148 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
TGF-beta repressors SnoN and Ski are implicated in human colorectal carcinogenesis.
CONCLUSION: Our findings suggest that SnoN and Ski exert oncogenic effects in human colorectal carcinogenesis and their overexpression is implicated in early stage disease.
PMID: 19096149 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
No evidence for FANCF gene silencing in head-and-neck squamous cell carcinomas.
Authors: Ameziane N, Chen F, Leemans CR, Brakenhoff RH, Joenje H
PMID: 19096150 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Multiple numerical chromosome aberrations in carcinogenesis: the kidney cancer model.
Authors: Teixeira MR
PMID: 19096151 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
David Paul Hansemann: chromosomes and the origin of the cancerous features of tumor cells.
Authors: Bignold LP, Coghlan B, Jersmann H
PMID: 19096152 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Marie Curie-Genome Architecture in Relation to Disease. Conference 3: Higher Order Genome Architecture. 1-5 April 2009. Edinburgh, Scotland, UK. Abstracts.
Authors:
PMID: 19363243 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
A fast, sensitive and accurate high resolution melting (HRM) technology-based assay to screen for common K-ras mutations.
CONCLUSIONS: HRM allows rapid, reliable and sensitive pre-screening of routine diagnostic specimens for subsequent genotyping of K-ras mutations, even if present at low abundance or homozygosity, and may considerably facilitate personalized therapy planning.
PMID: 19478384 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Presence of a high amount of stroma and downregulation of SMAD4 predict for worse survival for stage I-II colon cancer patients.
CONCLUSIONS: Conventional haematoxylin-eosin stained tumor slides contain more prognostic information than previously fathomed. This can be unleashed by assessing the tumor-stroma ratio. The combination of analyzing the tumor-stroma ratio and staining for SMAD4 results in an independent parameter for confident prediction of clinical outcome.
PMID: 19478385 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Basic fibroblast growth factor-mediated overexpression of vascular endothelial growth factor in 1F6 human melanoma cells is regulated by activation of PI-3K and p38 MAPK.
CONCLUSION: These data indicate that stimulation of VEGF protein secretion in response to bFGF overexpression may contribute to increased vascularization and enhanced aggressiveness in melanoma.
PMID: 19478386 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
BRCA2 heterozygosity delays cytokinesis in primary human fibroblasts.
CONCLUSIONS: The delayed cytokinesis phenotype of the BRCA2 heterozygous cells and localization of the BRCA2 protein to the midbody confirms that BRCA2 plays a role in cytokinesis. Our observations indicate that in a subset of cells the presence of only one wild type BRCA2 allele is insufficient for efficient cytokinesis.
PMID: 19478387 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Comparison between real-time quantitative PCR detection of HER2 mRNA copy number in peripheral blood and ELISA of serum HER2 protein for determining HER2 status in breast cancer patients.
CONCLUSIONS: Our results indicate that QPCR performs better than EIA in the determination of HER2 status of breast cancer patients and could be useful in monitoring the disease during follow up.
PMID: 19478388 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
Cutaneous human papillomavirus E7 type-specific effects on differentiation and proliferation of organotypic skin cultures.
CONCLUSION: HPV types associated with either benign or malignant lesions perturb keratinocyte proliferation and differentiation in different ways. Moreover, expression of E7 from HPV 5 or HPV 8 seem able to overcome p16(INK4a) induced cell cycle arrest in a subset of keratinocytes.
PMID: 19478389 [PubMed - indexed for MEDLINE] (Source: Analytical Cellular Pathology)
Source: Analytical Cellular Pathology - November 25, 2014 Category: Cancer & Oncology Tags: Cell Oncol Source Type: research
