Ebola virus glycoprotein-mediated anoikis of primary human cardiac microvascular endothelial cells

  • R.B. R
  • A. B
  • R. S
  • et al.
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Ebola virus glycoprotein (EGP) has been implicated for the induction of cytotoxicity and injury in vascular cells. On the other hand, EGP has also been suggested to induce massive cell rounding and detachment from the plastic surface by downregulating cell adhesion molecules without causing cytotoxicity. In this study, we have examined the cytotoxic role of EGP in primary endothelial cells by transduction with a replication-deficient recombinant adenovirus expressing EGP (Ad-EGP). Primary human cardiac microvascular endothelial cells (HCMECs) transduced with Ad-EGP displayed loss of cell adhesion from the plastic surface followed by cell death. Transfer of conditioned medium from EGP-transduced HCMEC into naive cells did not induce loss of adhesion or cell death, suggesting that EGP needs to be expressed intracellularly to exert its cytotoxic effect. Subsequent studies suggested that HCMEC death occurred through apoptosis. Results from this study shed light on the EGP-induced anoikis in primary human cardiac endothelial cells, which may have significant pathological consequences. 2004 Elsevier Inc. All rights reserved.




R.B., R., A., B., R., S., A., B., J., M., K., M., … R., R. (2004). Ebola virus glycoprotein-mediated anoikis of primary human cardiac microvascular endothelial cells. Virology. R.B. Ray, Department of Pathology, Saint Louis University, FDT-8N, 3635 Vista Avenue, St. Louis, MO 63110, United States. E-mail: rayrb@slu.edu: Academic Press Inc. Retrieved from http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=reference&D=emed6&NEWS=N&AN=2004144801

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