Open Access

Long‑term nicotine exposure induces dysfunction of mouse endothelial progenitor cells

  • Authors:
    • Wei Li
    • Da‑Yong Du
    • Yang Liu
    • Feng Jiang
    • Pan Zhang
    • Yun‑Tian Li
  • View Affiliations

  • Published online on: November 18, 2016     https://doi.org/10.3892/etm.2016.3916
  • Pages: 85-90
  • Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Endothelial progenitor cells (EPCs) have an important role in maintaining endothelial homeostasis. Previous studies reported that smoking has detrimental effects on EPCs; however, recent studies revealed that short‑term nicotine exposure may benefit EPCs. As most smokers are exposed to nicotine over an extended time period, the present study aimed to investigate the long‑term effects of nicotine on EPCs. Mice were administered nicotine orally for 1, 3 or 6 months. The mice exposed to nicotine for 1 month demonstrated increased EPC counts and telomerase activity and reduced cell senescence compared with control mice, consistent with previous reports. However, long‑term nicotine exposure resulted in opposing effects on EPCs, causing decreased counts, functional impairment and reduced telomerase activity. Furthermore, the effects of nicotine exposure were correlated with changes in sirtuins type 1 (SIRT1) protein expression. The current study indicated that long‑term nicotine exposure induces dysfunction and senescence of EPCs, which may be associated with impairment of telomerase activity through SIRT1 downregulation. The present results emphasize the necessity of smoking cessation to prevent dysfunction of EPCs.
View Figures
View References

Related Articles

Journal Cover

January-2017
Volume 13 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Li W, Du DY, Liu Y, Jiang F, Zhang P and Li YT: Long‑term nicotine exposure induces dysfunction of mouse endothelial progenitor cells. Exp Ther Med 13: 85-90, 2017
APA
Li, W., Du, D., Liu, Y., Jiang, F., Zhang, P., & Li, Y. (2017). Long‑term nicotine exposure induces dysfunction of mouse endothelial progenitor cells. Experimental and Therapeutic Medicine, 13, 85-90. https://doi.org/10.3892/etm.2016.3916
MLA
Li, W., Du, D., Liu, Y., Jiang, F., Zhang, P., Li, Y."Long‑term nicotine exposure induces dysfunction of mouse endothelial progenitor cells". Experimental and Therapeutic Medicine 13.1 (2017): 85-90.
Chicago
Li, W., Du, D., Liu, Y., Jiang, F., Zhang, P., Li, Y."Long‑term nicotine exposure induces dysfunction of mouse endothelial progenitor cells". Experimental and Therapeutic Medicine 13, no. 1 (2017): 85-90. https://doi.org/10.3892/etm.2016.3916