Document Details

Document Type : Article In Journal 
Document Title :
A collaborative European exercise on mRNA-based body fluid/skin typing and interpretation of DNA and RNA results.
A collaborative European exercise on mRNA-based body fluid/skin typing and interpretation of DNA and RNA results.
 
Document Language : English 
Abstract : The European Forensic Genetics Network of Excellence (EUROFORGEN-NoE) undertook a collaborative project on mRNA-based body fluid/skin typing and the interpretation of the resulting RNA and DNA data. Although both body fluids and skin are composed of a variety of cell types with different functions and gene expression profiles, we refer to the procedure as 'cell type inference'. Nine laboratories participated in the project and used a 20-marker multiplex to analyse samples that were centrally prepared and thoroughly tested prior to shipment. Specimens of increasing complexity were assessed that ranged from reference PCR products, cDNAs of indicated or unnamed cell type source(s), to challenging mock casework stains. From this specimen set, information on the overall sensitivity and specificity of the various markers was obtained. In addition, the reliability of a scoring system for inference of cell types was assessed. This scoring system builds on replicate RNA analyses and the ratio observed/possible peaks for each cell type [1]. The results of the exercise support the usefulness of this scoring system. When interpreting the data obtained from the analysis of the mock casework stains, the participating laboratories were asked to integrate the DNA and RNA results and associate donor and cell type where possible. A large variation for the integrated interpretations of the DNA and RNA data was obtained including correct interpretations. We infer that with expertise in analysing RNA profiles, clear guidelines for data interpretation and awareness regarding potential pitfalls in associating donors and cell types, mRNA-based cell type inference can be implemented for forensic casework. 
ISSN : 1872-4973 
Journal Name : Forensic Science International: Genetics 
Volume : 10 
Issue Number : 1 
Publishing Year : 1435 AH
2014 AD 
Article Type : Article 
Added Date : Tuesday, March 8, 2016 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
M van den Bergevan den Berge, M Investigator  
A CarracedoCarracedo, A Researcher  
Iva GomesGomes, Iva Researcher  
EAM GrahamGraham, EAM Researcher  
Cordula HaasHaas, Cordula Researcher  
Benjamin HjortHjort, Benjamin Researcher  
Per Hoff-OlsenHoff-Olsen, Per Researcher  
Olalla MaroñasMaroñas, Olalla Researcher  
Niels MorlingMorling, Niels Researcher  

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