Personalized profiling of gene regulatory changes during human cellular differentiation and development

Alan Hodgkinson (primary)
Medical and Molecular Genetics
King's College London
Helena Kilpinen (secondary)
Institute of Child Health
University College London

Abstract

When cells differentiate, they undergo changes in gene regulatory networks. These shifts in gene expression are often modulated by genetic variants, which are known to contribute to disease risk. Usually, population-level studies are required to identify these markers – however, this is not feasible for small sample sizes or to infer the effects of rare variation. This project aims to develop computational methods to detect gene-level expression biases (allele specific expression – ASE) in human induced pluripotent stem cells, study how well personalized detection of ASE signals recapitulate effects on a population-scale and identify important genetic variation influencing cellular differentiation pathways.


References

1. Albert and Kruglyak. The role of regulatory variation in complex traits and disease. (2015) Nat. Rev. Genet. 16: 197-212.

2. Mohammadi et al. Quantifying the regulatory effect size of cis-acting genetic variation using allelic fold change. (2016) bioRxiv (https://doi.org/10.1101/078717)

3. Kilpinen, Goncalves et al. Common genetic variation drives molecular heterogeneity in human iPSCs. (2017) Nature in press (doi: 10.1038/nature22403)

4. Castel S et al. Rare variant phasing and haplotypic expression from RNA sequencing with phASER. (2016) Nat Commun. 2016 Sep 8;7:12817.

5. Hodgkinson, A. et al. 2016. A haplotype-based normalization technique for the analysis and detection of allele specific expression. BMC Bioinformatics 17: 364.


BBSRC Area
Genes, development and STEM* approaches to biology
Area of Biology
Cell BiologyGenetics
Techniques & Approaches
BioinformaticsGeneticsMathematics / Statistics