They grow indefinitely without special additives and are well differentiated, responding like normal endothelial cells to some interleukins and to extracellular matrix signals for tube-like differentiation.
When grown on a synthetic basement-like membrane, SVEC4-10 forms branching tube-like networks.
They specifically bind mouse lymphocytes in vitro.
The cells express the cell surface major histocompatibility complex class I antigen, H-2 k, and are susceptible to lysis by anti SV40 H-2 k CTL clones.
Interferon gamma (IFN-gamma) induces expression of MHC class II antigen in a time course identical to that of normal endothelial cells.
The cells express vascular cell adhesion molecule (VCAM), and stain positively for SV40 T antigen.
Tumor necrosis factor alpha (TNF alpha) induces SVEC4-10 to undergo reversible transition to a spindle shaped morphology.
SVEC4-10 is the parental line for a series of endothelial cell clones (ATCC CRL-2160, ATCC CRL-2161, ATCC CRL-2162, ATCC CRL-2163, ATCC CRL-2167, ATCC CRL-2168 and ATCC CRL-2171).
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