Corporate Banner
Satellite Banner
Molecular & Clinical Diagnostics
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Detailed look at Genetics of Human, Mouse Embryos

Published: Wednesday, July 31, 2013
Last Updated: Wednesday, July 31, 2013
Bookmark and Share
Scientists have used the powerful technology of single-cell RNA sequencing to track the genetic development of a human and a mouse embryo with unprecedented accuracy.

The technique could lead to earlier and more accurate diagnoses of genetic diseases, even when the embryo consists of only eight cells.

The study was led by Guoping Fan, professor of human genetics and molecular biology and member of both the Jonsson Comprehensive Cancer Center and the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research. The findings were published in the online edition of the journal Nature and will appear later in the print edition.

Single-cell RNA sequencing allows researchers to determine the precise nature of the total gene transcripts, or all of the genes that are actively expressed in a particular cell.

"The advantages of this technique are twofold," Fan said. "It is a much more comprehensive analysis than was achievable before and the technique requires a very minimal amount of sample material — just one cell.

Besides its implications for genetic diagnoses — such as improving scientists' ability to identify genetic mutations like BRCA1 and BRCA2, which predispose women to breast cancer and ovarian cancer, or genetic diseases that derive from protein dysfunction, such as sickle cell disease — the technology may also have important uses in reproductive medicine.

The technique marks a major development in genetic diagnoses, which previously could not be conducted this early in embryonic development and required much larger amounts of biological material.

"Previous to this paper we did not know this much about early human development," said Kevin Huang, the study's co-first author and a postdoctoral scholar in Fan's laboratory. "Now we can define what 'normal' looks like, so in the future we will have a baseline from which to compare possible genetic problems. This is our first comprehensive glance at what is normal."

With single-cell RNA sequencing, much more gene transcription was detected than before. "The question we asked is, 'How does the gene network drive early development from one cell to two cells, two cells to four cells, and so on?'" Fan said. "Using the genome data analysis methods developed by co-author Steve Horvath at UCLA, we have uncovered crucial gene networks and we can now predict possible future genetic disorders at the eight-cell stage."

The research was supported by the Chinese Ministry of Science and Technology, the International Science and Technology Cooperation Program of China, and the National Natural Science Foundation of China.


Further Information

Join For Free

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 2,900+ scientific posters on ePosters
  • More than 4,200+ 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 TechnologyNetworks.com 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.

Related Content

Crowdfunding the Fight Against Cancer
From budding social causes to groundbreaking businesses to the next big band, crowdfunding has helped connect countless worthy projects with like-minded people willing to support their efforts, even in small ways. But could crowdfunding help fight cancer?
Monday, February 08, 2016
New Virus Disovered, Linked To Hepatitis C
Study is first to reveal entire genetic makeup of human pegivirus 2.
Tuesday, December 15, 2015
‘Purity’ Of Tumor Samples May Significantly Bias Genomic Analyses
Non-cancerous tumor components influence research findings, clinical classifications, study shows.
Monday, December 07, 2015
New Method for Screening Cancer Cells
Parallel microfiltration could lead to better treatments for a number of diseases, UCLA-led study says.
Thursday, December 03, 2015
When it Comes to Breast Cancer, Common Pigeon is No Bird Brain
If pigeons went to medical school and specialized in pathology or radiology, they’d be pretty good at distinguishing digitized microscope slides and mammograms of normal vs. cancerous breast tissue, a new study has found.
Monday, November 30, 2015
Crunching Numbers to Combat Cancer
UCSF receives $5 million to integrate data from cancer research models.
Wednesday, September 16, 2015
Ultrafast DNA Diagnostics
New technology developed by UC Berkeley bioengineers promises to make a workhorse lab tool cheaper, more portable and many times faster by accelerating the heating and cooling of genetic samples with the switch of a light.
Monday, August 03, 2015
Genetic Markers for Detecting and Treating Ovarian Cancer
Custom bioinformatics algorithm identifies human mRNAs that distinguish ovarian cancer cells from normal cells and provide new therapeutic targets
Wednesday, May 27, 2015
May the Cellular Force be With You
Like tiny construction workers, cells sculpt embryonic tissues and organs in 3D space.
Friday, December 13, 2013
Chemical Signature for Fast Form of Parkinson's Found
The physical decline experienced by Parkinson's disease patients eventually leads to disability and a lower quality of life.
Monday, November 25, 2013
Discovery Could Lead to Saliva Test for Pancreatic Cancer
The disease is typically diagnosed through an invasive and complicated biopsy.
Tuesday, October 15, 2013
Cost-Effective Recommendations for Cancer Screening
When public health budgets are constrained, mammography screening should begin later and occur less frequently.
Tuesday, September 17, 2013
Sugar Helps Scientists Find and Assess Prostate Tumors
New GE technology enables UCSF researchers to safely detect tumors in real time.
Friday, August 23, 2013
Dentistry School Receives $5M to Study Saliva Biomarkers
Imagine having a sample of your saliva taken at the dentist's office, and then learning within minutes whether your risk for stomach cancer is higher than normal.
Thursday, August 15, 2013
Major Changes Urged for Cancer Screening and Treatment
Scientific panel recommends new personalized strategies to reduce cancer overtreatment.
Tuesday, July 30, 2013
Scientific News
‘Smelling’ Prostate Cancer
A research team from the University of Liverpool and the University of the West of England (UWE Bristol) has reached an important milestone towards creating a urine diagnostic test for prostate cancer that could mean that invasive diagnostic procedures that men currently undergo eventually become a thing of the past.
Criminal Justice Alcohol Program Linked to Decreased Mortality
Institute has announced that in the criminal justice alcohol program deaths dropped by 4.2 percent over six years.
Charting Kidney Cancer Metabolism
Changes in cell metabolism are increasingly recognized as an important way tumors develop and progress, yet these changes are hard to measure and interpret. A new tool designed by MSK scientists allows users to identify metabolic changes in kidney cancer tumors that may one day be targets for therapy.
Individuals' Medical Histories Predicted by their Noncoding Genomes
Researchers have found that analyzing mutations in regions of the genome that control genes can predict medical conditions such as hypertension, narcolepsy and heart problems.
'Molecular Movie' Opens Door to New Cancer Treatments
An international team of scientists led by the University of Liverpool has produced a 'structural movie' revealing the step-by-step creation of an important naturally occurring chemical in the body that plays a role in some cancers.
Advancing Synthetic Biology
Living systems rely on a dizzying variety of chemical reactions essential to development and survival. Most of these involve a specialized class of protein molecules — the enzymes.
Preparing for Potential Zika Outbreaks
Experts at the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) are developing tools to monitor the spread of the Zika virus and are conducting research to gather more solid data to better assess the risks associated with the infection.
What do Banana Peels and Human Skin Have in Common?
Human skin and banana peels have something in common: they produce the same enzyme when attacked. By studying fruit, researchers have come up with an accurate method for diagnosing the stages of this form of skin cancer.
Biomarker for Recurring HPV-Linked Oropharyngeal Cancers
A look-back analysis of HPV infection antibodies in patients treated for oropharyngeal (mouth and throat) cancers linked to HPV infection suggests at least one of the antibodies could be useful in identifying those at risk for a recurrence of the cancer, say scientists at the Johns Hopkins University.
Counting Cancer-busting Oxygen Molecules
Researchers from the Centre for Nanoscale BioPhotonics (CNBP), an Australian Research Centre of Excellence, have shown that nanoparticles used in combination with X-rays, are a viable method for killing cancer cells deep within the living body.
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
2,900+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,200+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!