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Turkish Journal of Hematology logoLink to Turkish Journal of Hematology
. 2016 Aug 19;33(3):261–262. doi: 10.4274/tjh.2015.0143

Endothelial Cells, Ankaferd Hemostat, and Estradiol

Endotel Hücreleri, Ankaferd ve Estradiol

Yasemin Ardıçoğlu 1, Nejat Akar 1, İbrahim Haznedaroğlu 2,*
PMCID: PMC5111478  PMID: 26376760

We previously demonstrated the effects of Ankaferd hemostat (AH) on human umbilical vein endothelial cells (HUVECs) in Turkish Journal of Hematology [1]. Endothelial cells adhered to each other within seconds and critical intracellular transcription factors were activated just after the application of AH (5 µL) to the HUVECs (Figure 1A). Rapid vital endothelial cell adherence/aggregation is reversible and could be reversed within 24 h (Figure 1B).

Figure 1A. A. Human umbilical vein endothelial cells adhered to each other, within seconds, just after the application of Ankaferd hemostat (5 µL).

Figure 1A

Figure 1B. Reversible vital endothelial cell adherence/aggregation in human umbilical vein endothelial cells 24 h after application of Ankaferd hemostat (5 µL).

Figure 1B

We further determined that the cellular effects of AH on HUVECs are clinically important in pharmacobiological hemostasis [1,2,3]. Endothelial cells are involved in a range of pathophysiological processes including hemostasis, inflammation, and angiogenesis [4], all of which are directly related to the effects of AH [1,2,3]. However, the relevant receptors on the surface of HUVECs and the molecules inside the content of AH affecting the endothelial cells remain unknown. Since HUVECs express estrogen receptor (ER) beta [4] and rapid HUVEC cellular responses to estrogen can be mediated by estrogen binding to ER [5], we herein aimed to investigate the estradiol content of AH. Estradiol concentration is found to be very high in AH (1452.6 pg/mL), whereas progesterone level is 6.06 ng/mL. Those results suggest novel hypotheses that shall be tested in future investigations regarding the interrelationships of vascular endothelial cells, hemostasis, and estradiol inside AH.

Footnotes

Concept: İbrahim Haznedaroğlu, Nejat Akar; Design: Yasemin Ardıçoğlu, Nejat Akar, İbrahim Haznedaroğlu; Data Collection or Processing: Yasemin Ardıçoğlu, Nejat Akar, İbrahim Haznedaroğlu; Analysis or Interpretation: Yasemin Ardıçoğlu, Nejat Akar, İbrahim Haznedaroğlu; Literature Search: Yasemin Ardıçoğlu, Nejat Akar, İbrahim Haznedaroğlu; Writing: Yasemin Ardıçoğlu, Nejat Akar, İbrahim Haznedaroğlu.

Conflict of Interest: The authors of this paper have no conflicts of interest, including specific financial interests, relationships, and/or affiliations relevant to the subject matter or materials included.

References

  • 1.Yılmaz E, Güleç Ş, Torun D, Haznedaroğlu İC, Akar N. The effects of Ankaferd® Blood Stopper on transcription factors in HUVEC and the erythrocyte protein profile. Turk J Hematol. 2011;28:276–285. doi: 10.5152/tjh.2011.39. [DOI] [PubMed] [Google Scholar]
  • 2.Karabiyik A, Güleç S, Yilmaz E, Haznedaroglu I, Akar N. Reversible protease-activated receptor 1 downregulation mediated by Ankaferd Blood Stopper inducible with lipopolysaccharides inside the human umbilical vein endothelial cells. Clin Appl Thromb Hemost. 2011;17:165–170. doi: 10.1177/1076029610394437. [DOI] [PubMed] [Google Scholar]
  • 3.Karabıyık A, Yılmaz E, Güleç S, Haznedaroğlu I, Akar N. The Dual Diverse Dynamic Reversible Effects of Ankaferd Blood Stopper on EPCR and PAI-1 Inside Vascular Endothelial Cells with and without LPS Challenge. Turk J Hematol. 2012;29:361–366. doi: 10.5152/tjh.2011.41. [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 4.Toth B, Saadat G, Geller A, Scholz C, Schulze S, Friese K, Jeschke U. Human umbilical vascular endothelial cells express estrogen receptor beta (ERβ) and progesterone receptor A (PR-A), but not ERα and PR-B. Histochem Cell Biol. 2008;130:399–405. doi: 10.1007/s00418-008-0426-7. [DOI] [PubMed] [Google Scholar]
  • 5.Russell KS, Haynes MP, Sinha D, Clerisme E, Bender JR. Human vascular endothelial cells contain membrane binding sites for estradiol, which mediate rapid intracellular signaling. Proc Natl Acad Sci U S A. 2000;97:5930–5935. doi: 10.1073/pnas.97.11.5930. [DOI] [PMC free article] [PubMed] [Google Scholar]

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