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The generation of RBCs in vitro from stem cell sources and the molecular regulation of erythropoiesis.

  • Full or part time
  • Application Deadline
    Applications accepted all year round
  • Self-Funded PhD Students Only
    Self-Funded PhD Students Only

About This PhD Project

Project Description

Development of systems for the generation of red blood cells (RBCs) from stem cells sources (adult peripheral blood, cord blood and pluripotent stem cells) in vitro is of great interest to health services globally, as such a product could overcome many of the problems associated with donor blood, in particular the availability for certain rare blood groups and for patients requiring repeat transfusions.

Pluripotent stem cells (PSCs) have advantages for such systems as they have the potential to provide an inexhaustible source of progenitors for the generation of large numbers of RBCs, however further research is required before mature RBCs can be generated from these cells. We are utilising innovative proteomic approaches to analyse the differential proteome, phosphoproteome and transcription factor profile of erythroblasts from such stem cells as they progress down the erythroid pathway to determine why the cells have terminal differentiation defects, along with genetic manipulation to obtain the required adult phenotype.

An alternative and highly desirable approach to PSCs is to generate immortalized adult erythroid cell lines. We have recently created the first such cell lines, which are undergoing extensive analysis using genomic, transcriptomic and proteomic approaches with the aim of making lines suitable for therapeutics. However, such lines have significant additional potential as we can use CRISPR/Cas9 genome editing to create designer lines with selected rare blood group phenotypes and as disease model systems for conditions such as beta thalassemia.

We are also interested in the regulation of erythropoiesis, in particular transcription factors such as KLF1. KLF1 is essential for erythropoiesis and mutations in this transcription factor can result in severe red blood cell disorders. We are investigating how such mutations cause disease and will use genome editing techniques to create human immortalised erythroid lines carrying the selected mutations, and genomic, transcriptomic, proteomic and biochemical approaches to determine the underlying molecular mechanisms.

We are part of the recently formed NIHR Blood and Transplant Research Unit (BTRU) to advance research on the manufacture of red blood cells from stem cells and their translation from the lab to human trails, and collaborate with Prof Dave Anstee at NHSBT and Dr Ash Toye within the University.

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