Cover
Vol. 4 No. 2 (2014)

Published: December 31, 2014

Pages: 19-24

Research Article

The Profile of Apoptotic Marker sFas Ligand in seminal plasma of Oligozoospermic men

Abstract

Background: The Fibroblast associated (Fas) system in the testes has been identified as a key regulator of apoptosis, a process that greatly influences the germ cell population of the testes. Objective: This study measures the level of soluble Fas Ligand (sFasL) in the semen of oligozoospermic men evaluating the association between seminal plasma sFasL and spermatogenesis. Methods: A total 58 oligozoospermic men and 29 normal volunteers were included in this study. semen was evaluated according to World Health Organization 2010 standard parameters. sFasL was measured using ELISA enzyme immunoassay for quantitative determination of sFasL. Results: s FasL level was found significantly higher (P< 0.01) in seminal plasma of oligozoospermic men, with weak correlation of the level of this marker with the degree of severity of oligozoospermia. Conclusions: The apoptotic marker, sFasL is a novel marker found in the seminal plasma of oligozoospermic men. It's level is higher in cases of oligozoospermia regardless of its severity.

References

  1. Kuang W. The Initial Consultation for male infertility. In: Sabanegh ES. (ed.). Male Infertility problems and Solutions. Springer. 2011; 1-13.
  2. Papathana Soglou ED, Moyniha JA, Ackerman MH. Does Programmed cell death (Apoptosis) play a role in the development of miltiple organ dysfunction in critically ill patients? a review and theoretical framework. Crit. Care Med. 2000; 28: 537-549.
  3. O'Neil DA, McVicar CM, McClure L, et al. Reduced sperm yield from testicular biopsies of vasectomized men is due to increased apoptosis. Fertility Sterility. 2007; 87:834-841.
  4. Schneider P, Bodmer JL, Holler N, et al. Characterization of Fas (APO- 1, CD95)-Fas Ligand interaction. J. Biol. Chem. 1997; 272(30): 18827- 18833.
  5. Kim SK, Yoon YD, Park YS, et al. Involvement of the Fas-Fas Ligand system and active caspase-3 in abnormal apoptosis in human testes with maturation arrest and sertoli cell-only syndrome. Fertility Steril. 2007; 87: 547-553.
  6. WHO 2010. World Health Organization Laboratory manual for Examination and Processing of human semen. 5th. edition. New York.
  7. Tanaka M, Suda T, Takahashi T and Nagata S. Expression of the functional soluble form of human Fas ligand in activated lymphocytes. EMBO J. 1995; 14:1129-1135.
  8. Griffit TS, Brunner T, Fletcher SM, et al. Fas Ligand- induced apoptosis as a mechanism of immune privilege. Science. 1995; 270:1189- 1192.
  9. Passadak T, Asimakopoulos B, Zeginiadou T, et al. Soluble Fas and Fas Ligand levels in seminal plasma: association with basic parameters of semen analysis. in vivo. 2013; 27(2): 285-287.
  10. Fujisawa M and Ishikawa T. Soluble form of Fas and Fas Ligand concentrations in the seminal plasma of infertile men with varicocele. The Journal of Urology. 2003; 170:2363- 2365.
  11. Shimizu M, Fukuo K, Nagata S, et al. Increased plasma levels of the soluble form of Fas Ligand in patients with acute myocardial infarction and unstable angina pectoris. J. Am. Coll. Cardiol. 2002; 39(4): 585-590.
  12. Guldiken S, Taskiran B, Demir M, et al. Role of soluble Fas/Fas Ligand pathway and osteoprotegerin levels in patients with diabetic food. Endocrine Abstracts. 2009; 343.
  13. Takabatake N, Nakamura H, Inoue S, et al. Circulating levels of soluble Fas Ligand and soluble Fas in patients with chronic obstructive pulmonary disease. Resp. Med. 2000; 94(12): 1215-1220.
  14. Nishigaki K, Minatoguchi S, Seishima M, et al. Plasma Fas Ligand, an inducer of apoptosis, plasma soluble Fas, an inhibitor of apoptosis in patients with chronic congestive heart failure. J. Am. Coll. Cardiol. 1997; 29(7): 1214-1220.
  15. Schneider P, Holler N, Bodmer JL, Hahne M, Frei K, Fontana, A and Tschopp J. Conversion of membrane-bound Fas(CD95) ligand to its soluble form is associated with downregulation of its proapoptotic activity and loss of liver toxicity. J Exp Med. 1998; 187:1205-1213.
  16. Tanaka M, Itai T, Adachi M and Nagata S. Downregulation of Fas ligand by shedding. Nat Med. 1998; 4: 31-36.
  17. Sieg S, Smith D and Kaplan D. Differential activity of soluble versus cellular Fas ligand: regulation by an accessory molecule. Cell Immunol. 1999;195:89-95.
  18. Ishimaru N, Yanagi K, Ogawa K, Suda T, Saito, I and Hayashi Y. Possible role of organ-specific autoantigen for Fas ligand-mediated activation-induced cell death in murine sjogren’s syndrome. J Immunol. 2001; 167: 6031-6037.
  19. Matsuno H, Yudoh K, Watanabe Y, Nakazawa F, Aono H and Kimura T. Stromelysin-1 (MMP-3) in synovial fluid of patients with rheumatoid arthritis has potential to cleave membrane bound Fas ligand. J Rheumatol. 2001; 28: 22-28.
  20. Tanaka M, Suda T, Haze K, et al. Fas ligand in human serum. Nat Med. 1996; 2:317–322.
  21. Lee J, Richburg JH, Shipp EB, Meistrich ML and Boekelheide K. The Fas system, a regulator of testicular germ cell apoptosis, is differentially up-regulated in Sertoli cell versus germ cell injury of the testis. Endocrinology. 1999; 140: 852-858.
  22. Rodriguez I, Ody C, Araki K, Garcia I and Vassalli P. An early and massive wave of germinal cell apoptosis is required for the development of functional spermatogenesis. EMBO J. 1997; 16: 2262-2270.