Satellite Banner
Scientific Community
Become a Member | Sign in
Home>News>This Article

BGI Tech Develops Whole Exome Sequencing Analysis of FFPE DNA Samples to Accelerate Biomedical Research

Published: Friday, September 21, 2012
Last Updated: Friday, September 21, 2012
Bookmark and Share
Achieving optimization of FFPE DNA library construction with DNA down to 200 ng.

BGI Tech Solutions Co., Ltd., a subsidiary company of BGI, announced today that they have achieved whole exome sequencing analysis of total degraded DNA as low as 200 ng from formalin fixed paraffin embedded (FFPE) samples. This advancement enables researchers to efficiently uncover the genetic information from FFPE disease samples such as cancers and infectious diseases, with the advantages of high reliability, accuracy and fast turnaround time.

FFPE samples are the most common biological materials for disease diagnoses and clinical studies. Especially in cancer research, millions of FFPE archival cancer tissue samples provide an enormous and invaluable repository of information, which hold a wealth of data for the discovery of biomarkers, drug development as well as diseases diagnosis and treatment.

However, during the FFPE sample preparation and storage process, the effect of formaldehyde on nucleic acids is detrimental, which can induce modification of nucleotide molecules, such as DNA damage, DNA-protein cross-links (DPC), among others. This may lay problems for researchers to get enough high-quality DNA from these FFPE samples to comprehensively explore the genetic characteristics of diseases, especially for some rare tumors.

FFPE samples are a unique sample type with a lot of challenges, and researchers from BGI Tech have optimized the DNA extraction, library construction and sequencing pipelines of FFPE DNA samples. At present, DNA as low as 200 ng from FFPE samples can be used for whole exome sequencing. To insure the accuracy and quality of sequencing, researchers evaluated the FFPE DNA sequencing results and demonstrated that FFPE exome sequencing could maintain the equivalent accuracy and reliability with the normal DNA sample sequencing.

It is reported that ~85% of genetic diseases are related with exome variations. Whole exome sequencing is a robust innovative technique that selectively sequences the coding regions of a genome and can be used to identify novel genes associated with rare and common diseases such as cancer, diabetes, and obesity. However, currently traditional exome sequencing has higher requirement for the quality and the amount of input of DNA samples.

Zhao Lin, Director of Products R&D Department of BGI Tech, said, “Our whole exome sequencing technology with FFPE DNA sample is an important step toward better and quickly decoding the genetic information underlying FFPE diseases samples. I believe this advancement will strengthen the confidence of researchers in pharmaceutical and disease areas, especially when samples are limited. In order to accelerate biomedical research, we expect to conduct more FFPE sequencing projects with collaborators worldwide.”

Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,700+ scientific posters on ePosters
  • More than 3,800+ scientific videos on LabTube
  • 35 community eNewsletters

Sign In

Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Scientific News
New Virus Identified In Blood Supply
Scientists have discovered a new virus that can be transmitted through the blood supply.
Tracking Changes in DNA Methylation In Real Time At Single-Cell Resolution
Whitehead Institute researchers have developed a methodology to monitor changes in DNA methylation over time in individual cells.
DNA Alterations as Among Earliest to Occur in Lung Cancer Development
Genetic footprints of precancer detectable in some blood samples.
Bar-Coding Technique Opens Up Studies Within Single Cells
Scientists have developed a method for simultaneously imaging and identifying dozens of molecules within individual cells.
Scientists Learn How to Predict Plant Size
VIB and UGent scientists have developed a new method which allows them to predict the final size of a plant while it is still a seedling.
New Device Reduces Time to Diagnose Infections
A new diagnostic device created by a collaborative team of UA engineers and scientists may significantly reduce the amount of time necessary to diagnose tissue infections.
Surprising Mechanism Behind Antibiotic-Resistant Bacteria Uncovered
Now, scientists at TSRI have discovered that the important human pathogen Staphylococcus aureus, develops resistance to this drug by “switching on” a previously uncharacterized set of genes.
Researchers Develop qPCR Prognosis Test for NSCLC Patients
A nine-gene molecular prognostic index (MPI) for patients with early-stage non-small cell lung cancer (NSCLC) was able to provide accurate survival stratification and could potentially inform the use of adjuvant therapy in patients struggling with the disease.
Genome Wide Annotation of Primary miRNAs Reveals Novel Mechanisms
Researchers have devised a strategy for genome-wide annotation of primary miRNA transcripts, providing extensive new annotations in human and mouse, and shedding light on mechanisms of regulation of microRNA gene expression.
‘Fishing Expedition’ Nets Nearly Tenfold Increase in Number of Sequenced Virus Genomes
Newly developed computational tool finds 12,500 genomes of viruses that infect microbes.
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,700+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,800+ scientific videos