Research in Experimental Medicine

, Volume 191, Issue 1, pp 259–272 | Cite as

Enhanced proliferation of coronary endothelial cells in response to growth factors is synergized by hemodialysate compounds in vitro

  • D. Schönwald
  • B. Sixt
  • F. Machicao
  • E. Marx
  • G. Haedenkamp
  • S. Bertsch


Using capillary endothelial cells from the coronary system of guinea pig heart, we have devised an in vitro assay suitable for measuring proliferative and growth-promoting effects mediated by drugs and growth factors. In this assay, hemodialysate and fractions isolated from it—consisting exclusively of low-molecular-weight compounds from calf blood—stimulate the proliferation of coronary endothelial cells. This effect is not a trivial nutritive one. Furthermore, in respect to the stimulation of proliferation, hemodialysate synergizes with epidermal growth factor, basic fibroblast growth factor, and endothelial cell growth factor, but not with insulin, which shows no proliferative effect in our system. From data obtained by analysis of hemodialysate fractions, it is deduced that the active compounds are strongly negatively charged oligosaccharides with a molecular weight of apparently 3000 Dalton. The synergistic effect of hemodialysate compounds on proliferation of endothelial cells as well as their previously demonstrated insulin-like activity is believed to explain the therapeutic efficacy of hemodialysate in cases of impaired wound healing and occlusive diseases.

Key words

Endothelial cells Growth factors Insulin Angiogenesis Wound healing 


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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • D. Schönwald
    • 1
  • B. Sixt
    • 1
  • F. Machicao
    • 1
  • E. Marx
    • 1
  • G. Haedenkamp
    • 1
  • S. Bertsch
    • 1
  1. 1.Hormon-Chemie München GmbHMünchen 45Federal Republic of Germany

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