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Isolation of Endothelial Progenitor Cells from Healthy Volunteers and Their Migratory Potential Influenced by Serum Samples After Cardiac Surgery
08:43

Isolation of Endothelial Progenitor Cells from Healthy Volunteers and Their Migratory Potential Influenced by Serum Samples After Cardiac Surgery

Published on: February 14, 2017

11.6K

[Changes of circulating hematopoietic progenitor cells in patients undergoing coronary artery bypass graft surgery]

Lin Zhang1, Changqing Gao, Rong Wang

  • 1Department of Cardiovascular Surgery, General Hospital of PLA, Iinstitute of Cardiac Surgery of PLA, Beijing 100853, China.

Nan Fang Yi Ke Da Xue Xue Bao = Journal of Southern Medical University
|November 22, 2014
PubMed

Insights

Coronary artery bypass graft (CABG) surgery increases circulating hematopoietic progenitor cells (cHPCs) early post-operation. These cell levels return to normal over time, with greater changes observed in on-pump procedures.

Area of Science:

  • Cardiovascular Surgery
  • Hematology
  • Regenerative Medicine

Background:

  • Coronary artery bypass graft (CABG) surgery is a major cardiovascular procedure.
  • Hematopoietic progenitor cells (HPCs) play a crucial role in tissue repair and regeneration.
  • Understanding perioperative changes in circulating HPCs is important for assessing patient recovery.

Purpose of the Study:

  • To evaluate the dynamic changes in circulating hematopoietic progenitor cells (cHPCs) following CABG surgery.
  • To compare cHPC levels in patients undergoing on-pump versus off-pump CABG.
  • To assess the functional capacity of cHPCs post-CABG.

Main Methods:

  • Prospective study of 51 patients undergoing elective CABG.
  • Blood samples collected at baseline and 1, 3, and 5 days post-surgery.
  • Flow cytometry used to quantify CD34⁺, CD133⁺, and CD34⁺CD133⁺ HPCs; in vitro functional assays performed.

Main Results:

  • Significant postoperative increase in CD34⁺ CD45dim and CD133⁺ CD45dim cells observed.
  • Perioperative cHPC changes were more pronounced in on-pump CABG patients compared to off-pump.
  • Functional assays indicated progenitor cell activity post-surgery.

Conclusions:

  • Elective CABG surgery leads to an early, transient increase in circulating hematopoietic progenitor cells.
  • HPC levels normalize over time after CABG.
  • On-pump CABG elicits a more significant response in cHPC mobilization.
Abstract

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