A multiscale model of cell mobility: From a kinetic to a hydrodynamic   description
  This paper concerns a model for tumor cell migration through the surrounding extracellular matrix by considering mass balance phenomena involving the chemical interactions produced on the cell surface. The well-posedness of this model is proven. An asymptotic analysis via a suitable hydrodynamic limit completes the description of the macroscopic behaviour. 
J. Nieto and L. Urrutia
math.AP