Methods and devices for isolating and diagnosing 
disease with a 
cell adhesion matrix 
system, mimicking a metastatic, cardiovascular or placental environment, are disclosed. The 
cell adhesion matrix facilitates the enrichment of target cells such as 
metastatic tumor cells, fetal cells and endothelial 
progenitor cells from a fluid sample such as blood for diagnostic and therapeutic applications in treating patients afflicted with 
disease, such as cancerous, cardiovascular and fetal diseases, as well as for research applications in 
molecular analysis of metastatic, and cardiovascular and fetal diseases. 
Blood test prototypes and methods for the 
cell enrichment and detection of circulating tumor and endothelial cells using 
multiplex molecular analysis are described herein. In addition, methods and compositions for determining 
host immunity to tumor in subjects with risk of 
cancer progression and methods for isolating an enriched fraction of fetal cells from pregnant females for 
prenatal diagnosis are also described herein.