Living biointerfaces based on non-pathogenic bacteria to direct cell differentiation.

ABSTRACT: Genetically modified Lactococcus lactis, non-pathogenic bacteria expressing the FNIII(7-10) fibronectin fragment as a protein membrane have been used to create a living biointerface between synthetic materials and mammalian cells. This FNIII(7-10) fragment comprises the RGD and PHSRN sequences of fibronectin to bind α5β1 integrins and triggers signalling for cell adhesion, spreading and differentiation. We used L. lactis strain to colonize material surfaces and produce stable biofilms presenting the FNIII(7-10) fragment readily available to cells. Biofilm density is easily tunable and remains stable for several days. Murine C2C12 myoblasts seeded over mature biofilms undergo bipolar alignment and form differentiated myotubes, a process triggered by the FNIII(7-10) fragment. This biointerfa

SUBMITTER: Rodrigo-Navarro A 

PROVIDER: S-EPMC5376178 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature