Characterising the enteric nervous system in the nNOS-/- mouse model

Molecular
qPCR
Confocal
Generated a cellular and molecular profile of the enteric nervous system before stem cell transplant

Overview

During my masters degree, I was fortunate to spend time in the group of Dr Alan Burns and work under the supervision of Dr Conor McCann. Dr McCann’s research centred on determining the feasibility of transplanting enteric neural stem cells (ENSCs) into the gastrointestinal system of a mouse model of human enteric neuropathy (nNOS-/-) to rescue the impaired gut motility.

I was specifically involved in characterising the populations of cells within the enteric nervous system of these nNOS-/- mice at baseline to then compare with the changes after the ENSC transplants. Among other things, I was also introduced to the technique of quantitative polymerase chain reaction (qPCR) to measure gene expression levels in tissues and performed dissections of enteric tissues and immunohistological stainings to uncover the levels of certain proteins present in this tissue.

Technical Highlights

  • Microscopy confocal microscopy
  • Dissection preparation of histological sections
  • Immunohistochemistry labelling samples with antibodies to detect the presence and abundance of certain proteins
  • qPCR quantitative technique for measuring gene expression levels in tissues

Technologies

Enteric Confocal Dissection Immunohistochemistry qPCR