Arterial and venous smooth muscle cell proliferation in response to co-culture with arterial and venous endothelial cells.
J Vasc Interv Radiol 1999;
10:1051-7. [PMID:
10496707 DOI:
10.1016/s1051-0443(99)70191-0]
[Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
PURPOSE
To determine whether definable differences exist between arterial and venous smooth muscle cells (SMCs), as measured by proliferative response to co-culture with arterial or venous endothelial cells (ECs).
MATERIALS AND METHODS
Human aortic ECs (A-ECs) and saphenous vein ECs (V-ECs) were cultured opposite either aortic SMCs (A-SMCs) or saphenous vein SMCs (V-SMCs). At selected time intervals, SMCs were counted by fluorescence microscopy.
RESULTS
In the presence of an intact EC monolayer, A-ECs induced a 9%-31% increase in A-SMC (P < or = .001) and a 15%-37% increase in V-SMC (P < or = .001) proliferation. Saphenous vein ECs induced a 50%-71% increase in A-SMC (P < or = .001) and a 40%-62% increase in V-SMC (P < or = .001) proliferation. The small proliferative difference between A-SMCs and V-SMCs was significant for co-culture with A-ECs (P < or = .001) and V-ECs (P < or = .001). Of note, compared to A-ECs, V-ECs induced a significantly greater A-SMC (P < or = .001) and V-SMC (P < or = .001) proliferative response.
CONCLUSION
A small, but definable, difference exists between A-SMCs and V-SMCs, as measured by proliferative response in co-culture with A-ECs and V-ECs.
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