Understanding the relationships between extracellular matrix composition, structure, and mechanics in normal and scarred skin

John Connelly (primary)
Blizard Institute
Queen Mary, University of London
Tanya Shaw (secondary)
Centre for Inflammation Biology & Cancer Immunology
King's College London

Abstract

Tissue biomechanics are essential for the skin’s function as a physical barrier, but how these properties reflect the composition and structure of the extracellular matrix (ECM) remains poorly understood. The aim of this PhD studentship will be to develop a quantitative model for the relationship between ECM composition, ECM structure, and tissue mechanics within normal and scarred skin using advanced biomechanical methods, atomic force microscopy, confocal microscopy, and protein analysis. Additionally, engineered hydrogels will test their functional interactions in vitro.  This project will provide new and fundamental insights into skin biomechanics and the pathogenesis of scar formation.


References

  1. Theocharidis G, Drymoussi Z, Kao AP, Barber AH, Lee DA, Braun KM, Connelly JT. “Type VI collagen regulates dermal matrix assembly and fibroblast motility” Journal of Investigative Dermatology, 2016; 136(1): 74-83.
  2. Kao AP, Connelly JT, Barber AH. “3D nanomechanical evaluation of dermal structures in skin” Journal of Mechanical Behavior of Biomedical Materials, 2016; 57:14-23.
  3. Trappmann B, Gautrot JE, Connelly JT, Strange DG, Li Y, Oyen ML, Cohen Stuart MA, Boehm H, Li B, Vogel V, Spatz JP, Watt FM, Huck WT. “Extracellular-matrix tethering regulates stem-cell fate” Nature Materials, 2012; 11(7): 642-9.
  4. E Fitzgerald O’Connor, II Badshah, LY Addae, P Kundasamy, S Thanabalasingam, D Abioye, M Soldin, TJ Shaw. Histone deacetylase (HDAC) 2 is up-regulated in normal and keloid scars. Journal of Investigative Dermatology 2012, 132(4): 1293-6.
  5. JMB Wood, M Soldin, TJ Shaw, M Szarko. The biomechanical and histological sequelae of common skin banking methods. J Biomechanics 2014, 47(5):1215-9.

BBSRC Area
Genes, development and STEM* approaches to biology
Area of Biology
PhysiologyStructural Biology
Techniques & Approaches
BiochemistryBiophysicsEngineeringMathematics / StatisticsMicroscopy / ElectrophysiologyMolecular Biology