PROBLEM: To investigate the expression of genes coding for selected cytokines with antagonistic functions (IL-6, IL-10, TNF-alpha) as well as TNF-alpha receptors (TNFR1 and TNFR2) in correct spermatogenesis (normal proliferation), maturation arrest (proliferation inhibited) and testicular tumors (overgrowth). METHOD OF STUDY: Transcription levels of genes coding for IL-6, IL-10, TNF-alpha, TNFR1 and TNFR2 were quantitatively examined using a real-time RT-PCR. RESULTS: Significantly higher amounts of IL-6 mRNA were observed in testicular tumor samples than in normal spermatogenesis or in some syndromes with maturation arrest (MA at spermatid level or SCOS), while IL-10 gene levels were fairly stable. In homogenates with maturation arrest, the expression of TNFR1 gene was markedly higher than in testicular tumors, while the opposite phenomenon was found in respect to TNFR2 gene. CONCLUSION: The results obtained indicate that changes in activities of intra-testicular cytokines may promote different distinct pathologies such as testicular cancer or infertility.
PROBLEM: To investigate the expression of genes coding for selected cytokines with antagonistic functions (IL-6, IL-10, TNF-alpha) as well as TNF-alpha receptors (TNFR1 and TNFR2) in correct spermatogenesis (normal proliferation), maturation arrest (proliferation inhibited) and testicular tumors (overgrowth). METHOD OF STUDY: Transcription levels of genes coding for IL-6, IL-10, TNF-alpha, TNFR1 and TNFR2 were quantitatively examined using a real-time RT-PCR. RESULTS: Significantly higher amounts of IL-6 mRNA were observed in testicular tumor samples than in normal spermatogenesis or in some syndromes with maturation arrest (MA at spermatid level or SCOS), while IL-10 gene levels were fairly stable. In homogenates with maturation arrest, the expression of TNFR1 gene was markedly higher than in testicular tumors, while the opposite phenomenon was found in respect to TNFR2 gene. CONCLUSION: The results obtained indicate that changes in activities of intra-testicular cytokines may promote different distinct pathologies such as testicular cancer or infertility.
Authors: Kate L Loveland; Britta Klein; Dana Pueschl; Sivanjah Indumathy; Martin Bergmann; Bruce E Loveland; Mark P Hedger; Hans-Christian Schuppe Journal: Front Endocrinol (Lausanne) Date: 2017-11-20 Impact factor: 5.555
Authors: Robert Bader; José-Noel Ibrahim; Ali Mourad; Mayssam Moussa; Joan Azoury; Joseph Azoury; Nada Alaaeddine Journal: Int J Stem Cells Date: 2019-11-30 Impact factor: 2.500
Authors: Cecilia V Pérez; María S Theas; Patricia V Jacobo; Sabrina Jarazo-Dietrich; Vanesa A Guazzone; Livia Lustig Journal: Spermatogenesis Date: 2013-01-01