Abstract
Objective To use a proteomic approach to evaluate possible postinflammatory alterations in the protein composition of motile sperm in patients 3 months after acute epididymitis. Design Prospective case-control study. Setting University medical school research laboratory. Patient(s) Eight patients 3 months after acute unilateral epididymitis and 10 healthy controls. Intervention(s) None. Main Outcome Measure(s) Proteome analysis of sperm samples collected by swim-up from control and acute epididymitis patients analyzed by two-dimensional gel electrophoresis and subsequent protein identification by matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry; immunofluorescence staining for mitochondrial ATP synthase subunit β (ATP5B), α-tubulin (TUBA1A), and tubulin-β2c (TUBB4B) for validation purposes. Result(s) Proteome analysis identified 35 proteins in sperm from epididymitis patients that were down-regulated, irrespective of subcellular localization and biologic function. Furthermore, immunofluorescence microscopy confirmed ATP5B, TUBA1A, and TUBB4B were less abundantly expressed in epididymitis samples compared with controls. Conclusion(s) Despite normal semen parameters observed by conventional semen analysis in patients after epididymitis, significant changes to sperm protein composition were observed. These changes may be implicated as additional factors contributing to subfertility/infertility in men after episodes of epididymitis.
| Original language | English |
|---|---|
| Pages (from-to) | 1609-1617.e5 |
| Number of pages | 14 |
| Journal | Fertility and Sterility |
| Volume | 101 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2014 |
| Externally published | Yes |
Keywords
- Epididymitis
- male fertility
- proteome analysis
- semen quality
Cite this
}
Acute epididymitis induces alterations in sperm protein composition. / Pilatz, Adrian; Lochnit, Guenter; Karnati, Srikanth; Paradowska-Dogan, Agnieszka; Lang, Tali; Schultheiss, Dirk; Schuppe, Hans Christian; Hossain, Hamid; Baumgart-Vogt, Eveline; Weidner, Wolfgang; Wagenlehner, Florian.
In: Fertility and Sterility, Vol. 101, No. 6, 06.2014, p. 1609-1617.e5.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Acute epididymitis induces alterations in sperm protein composition
AU - Pilatz, Adrian
AU - Lochnit, Guenter
AU - Karnati, Srikanth
AU - Paradowska-Dogan, Agnieszka
AU - Lang, Tali
AU - Schultheiss, Dirk
AU - Schuppe, Hans Christian
AU - Hossain, Hamid
AU - Baumgart-Vogt, Eveline
AU - Weidner, Wolfgang
AU - Wagenlehner, Florian
PY - 2014/6
Y1 - 2014/6
N2 - Objective To use a proteomic approach to evaluate possible postinflammatory alterations in the protein composition of motile sperm in patients 3 months after acute epididymitis. Design Prospective case-control study. Setting University medical school research laboratory. Patient(s) Eight patients 3 months after acute unilateral epididymitis and 10 healthy controls. Intervention(s) None. Main Outcome Measure(s) Proteome analysis of sperm samples collected by swim-up from control and acute epididymitis patients analyzed by two-dimensional gel electrophoresis and subsequent protein identification by matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry; immunofluorescence staining for mitochondrial ATP synthase subunit β (ATP5B), α-tubulin (TUBA1A), and tubulin-β2c (TUBB4B) for validation purposes. Result(s) Proteome analysis identified 35 proteins in sperm from epididymitis patients that were down-regulated, irrespective of subcellular localization and biologic function. Furthermore, immunofluorescence microscopy confirmed ATP5B, TUBA1A, and TUBB4B were less abundantly expressed in epididymitis samples compared with controls. Conclusion(s) Despite normal semen parameters observed by conventional semen analysis in patients after epididymitis, significant changes to sperm protein composition were observed. These changes may be implicated as additional factors contributing to subfertility/infertility in men after episodes of epididymitis.
AB - Objective To use a proteomic approach to evaluate possible postinflammatory alterations in the protein composition of motile sperm in patients 3 months after acute epididymitis. Design Prospective case-control study. Setting University medical school research laboratory. Patient(s) Eight patients 3 months after acute unilateral epididymitis and 10 healthy controls. Intervention(s) None. Main Outcome Measure(s) Proteome analysis of sperm samples collected by swim-up from control and acute epididymitis patients analyzed by two-dimensional gel electrophoresis and subsequent protein identification by matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry; immunofluorescence staining for mitochondrial ATP synthase subunit β (ATP5B), α-tubulin (TUBA1A), and tubulin-β2c (TUBB4B) for validation purposes. Result(s) Proteome analysis identified 35 proteins in sperm from epididymitis patients that were down-regulated, irrespective of subcellular localization and biologic function. Furthermore, immunofluorescence microscopy confirmed ATP5B, TUBA1A, and TUBB4B were less abundantly expressed in epididymitis samples compared with controls. Conclusion(s) Despite normal semen parameters observed by conventional semen analysis in patients after epididymitis, significant changes to sperm protein composition were observed. These changes may be implicated as additional factors contributing to subfertility/infertility in men after episodes of epididymitis.
KW - Epididymitis
KW - male fertility
KW - proteome analysis
KW - semen quality
UR - http://www.scopus.com/inward/record.url?scp=84901803639&partnerID=8YFLogxK
U2 - 10.1016/j.fertnstert.2014.03.011
DO - 10.1016/j.fertnstert.2014.03.011
M3 - Article
VL - 101
SP - 1609-1617.e5
JO - Fertility and Sterility
JF - Fertility and Sterility
SN - 0015-0282
IS - 6
ER -