Changes in the seminal plasma proteome of adolescents before and after varicocelectomy

Changes in the seminal plasma proteome of adolescents before and after varicocelectomy

Author Del Giudice, Paula Toni Autor UNIFESP Google Scholar
Silva, Barbara Ferreira da Autor UNIFESP Google Scholar
Lo Turco, Edson Guimaraes Autor UNIFESP Google Scholar
Fraietta, Renato Autor UNIFESP Google Scholar
Spaine, Deborah Montagnini Autor UNIFESP Google Scholar
Santos, Luiz Fernando Arruda Google Scholar
Pilau, Eduardo Jorge Google Scholar
Gozzo, Fabio Cesar Google Scholar
Cedenho, Agnaldo Pereira Autor UNIFESP Google Scholar
Bertolla, Ricardo Pimenta Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Estadual de Campinas (UNICAMP)
Inst Nacl Ciencia & Tecnol Bioanalit
Abstract Objective: To compare seminal plasma protein profiles before and after varicocele correction to assess if surgical intervention alters the protein profile.Design: Prospective study.Setting: Academic research environment.Patient(s): Nineteen adolescent boys with varicocele grades II or III.Intervention(s): Two semen samples were collected before bilateral subinguinal microsurgical varicocelectomy, and two semen samples were collected 3 months after surgery. Seminal plasma protein profiles were determined with the use of two-dimensional gel electrophoresis. Proteins were separated in 18-cm 3-10 pH strips and 10%-17.5% gradient gels. Gels were stained, scanned, and compared with the use of Imagemaster 2D platinum 7.0. Spots of interest were removed from gels, and protein digestion was performed with the use of trypsin. Digests were identified with the use of electrospray ionization-quadrupole/time-of-flight tandem mass spectrometry (ESI-QTOF MS/MS), and spectra were analyzed with the use of the Mascot software.Main Outcome Measure(s): Proteins uniquely or overexpressed in each period (before or after varicocelectomy).Result(s): Nineteen spots were differentially expressed between pre- and postsurgery samples. Identified proteins were albumin, proteasome subunit alpha type 6, alpha-1-antitrypsin, fibronectin, CD177, prostatic acid phosphatase, specific prostatic antigen, alpha-2antiplasmin, vitamin D-binding protein, gastricsin, clusterin, semenogelin-1, semenogelin-2, superoxide dismutase, protein-glutamine gamma glutamyltransferase-4, and prolactin-inducing protein.Conclusion(s): Varicocelectomy is associated with changes in the seminal plasma protein profile. Understanding specific pathways leading to male infertility may further assist physicians in demonstrating deviation from homeostasis in male infertility. in addition, it may be possible to observe if surgical intervention does indeed revert altered pathways toward a homeostatic state. ((C) 2013 by American Society for Reproductive Medicine.)
Keywords Adolescents
proteome
seminal plasma
varicocele
varicocelectomy
Language English
Date 2013-09-01
Published in Fertility and Sterility. New York: Elsevier B.V., v. 100, n. 3, p. 667-672, 2013.
ISSN 0015-0282 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 667-672
Origin http://dx.doi.org/10.1016/j.fertnstert.2013.04.036
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000324234900024
URI http://repositorio.unifesp.br/handle/11600/36661

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