Showing posts with label transcription. Show all posts
Showing posts with label transcription. Show all posts

Saturday, September 21, 2013

NIAID-DVI: Transcriptional responses to dengue -- Stephen Popper

Blog Series: NIAID-DVI

Early genome-wide host transcriptional responses to dengue that correlate with neutralizing antibody titer following vaccination and natural infection
Stephen Popper
Stanford University School of Medicine

Vaccine development has been typically hampered because we don't have a good understanding of the correlates of protection or the links between innate and adaptive immune responses. We also have a limited understanding of the role of background immune status and it's affect on subsequent infection or vaccination. In order to identify links between early host responses and later adaptive immune responses, Popper's group studies the genome-wide transcriptional response to dengue during vaccine trial (a controlled setting) and in natural infection settings.

  • They characterized the temporal dynamics of transcript abundance in subjects vaccinated with rDEN3delta30/31 (TetraVax-DV live vaccine candidate Den3 component developed by NIAID).
  • Of Note:
    • During early transcriptional response there is an interferon-associated transcript expression pattern that peaked in most subjects between day 6 and day 12 post-immunization and this correlated with the titer of neutralizing antibodies (PRNT60) measured at day 42.
In their newest work...

Monday, January 7, 2013

Blog Series: WoG, Cesky Krumlov; Day 1: Mammalian Genomes

Dr. Chris Ponting
MRC Functional Genomics Unit
University of Oxford

Topic: Mammalian Genomes

This afternoon's session started off with a topic I'm pretty far from, human and mammalian genomics. I've worked hard in my career to stay away from diploid genetics--I like the simplicity of viruses and prokaryotes by comparison. Today's talk was in 3 parts focusing on the human and mouse genomes, functional DNA and transcript maps and the future.