Evaluation of monocyte chemotactic protein-1 levels in peripheral blood of infertile women with endometriosis

Eur J Obstet Gynecol Reprod Biol. 2005 Oct 1;122(2):199-205. doi: 10.1016/j.ejogrb.2005.03.019.


Objective: To test whether serum monocyte chemotactic protein-1 (MCP-1) chemokine levels correlate with endometriosis in infertile women.

Study design: A group of women with endometriosis (n = 18, infertile) was compared with patients with uterine leiomyoma (n = 16, fertile), unexplained infertility (n = 5, infertile), and healthy women (n = 16, fertile). MCP-1 expression levels were evaluated by ELISA assay. The data obtained were statistically analyzed using the Mann-Whitney test. P-Values <0.05 were considered as significant.

Results: MCP-1 concentrations (median; range of values) in serum were as follows: women with endometriosis (221; 101-635 pg/ml), women with unexplained infertility (167, 114-234 pg/ml), women with uterine leiomyoma (137; 88-200 pg/ml), and healthy donors (123; 98-194 pg/ml). Significant differences were observed in the women with endometriosis compared with those with uterine leiomyoma (p = 0.02) and healthy donors (p = 0.002). Among the women with endometriosis, the level of significance in MCP-1 level at rAFS stages III-IV was higher than that at rAFS stages I-II compared with healthy donors and women with leiomyoma (p = 0.002 and p = 0.02, respectively).

Conclusions: These data show that an increased level of MCP-1 can characterize infertile women with endometriosis. However, further studies are needed to be able to determine whether increased MCP-1 chemokine expression can be related to infertility or is a result of endometriosis progress.

MeSH terms

  • Adult
  • Biomarkers / blood
  • Chemokine CCL2 / blood*
  • Endometriosis / blood*
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Humans
  • Infertility, Female / blood*
  • Leiomyoma / blood
  • Uterine Neoplasms / blood


  • Biomarkers
  • CCL2 protein, human
  • Chemokine CCL2