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Troisi A, Schrank M, Bellezza I, Fallarino F, Pastore S, Verstegen JP, Pieramati C, Di Michele A, Talesa VN, Martìnez Barbitta M, Orlandi R, Polisca A. Expression of CD13 and CD26 on extracellular vesicles in canine seminal plasma: preliminary results. Vet Res Commun 2024; 48:357-366. [PMID: 37707657 PMCID: PMC10811140 DOI: 10.1007/s11259-023-10202-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/16/2023] [Indexed: 09/15/2023]
Abstract
Canine seminal plasma is a complex fluid containing proteins, peptides, enzymes, hormones as well as extracellular vesicles that are involved in many physiological and pathological processes including reproduction. We examined the expression of the extracellular vesicles surface antigens Aminopeptidase-N (CD13) and Dipeptidyl peptidase IV (CD26) by flow cytometry. For this study, third fraction of the ejaculate, from fertile adult male German Shepherd dogs, was manually collected twice, two days apart. FACS analyses revealed that CD13 and CD26 are co-expressed on the 69.3 ± 3.7% of extracellular vesicles and only a 2.0 ± 0.5% of extracellular vesicles express CD26 alone. On the other hand, 28.6 ± 3.6% of seminal EVs express CD13 alone. Our results agree with the hypothesis that CD26 needs to be co-expressed with other signal-transducing molecules, while CD13, can perform functions independently of the presence or co-expression of CD26. The results obtained in normal fertile dogs could represent physiological expression of these enzymes. Therefore, it would be interesting to carry out further studies to evaluate the expression of CD13 and CD26 on extracellular vesicles as biomarker for prostate pathological condition in dogs.
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Affiliation(s)
- Alessandro Troisi
- School of Bioscience and Veterinary Medicine, Università Di Camerino, Via Circonvallazione 93/95, 62024, Matelica (Macerata), Italy
| | - Magdalena Schrank
- Department of Animal Medicine, Production and Health Università Degli Studi Di Padova, Agripolis Viale Dell'Università - 35020 Legnaro, Padua, Italy
| | - Ilaria Bellezza
- Department of Medicine and Surgery, Università Di Perugia, P.Le Gambuli, 06132, Perugia, Italy
| | - Francesca Fallarino
- Department of Medicine and Surgery, Università Di Perugia, P.Le Gambuli, 06132, Perugia, Italy
| | - Sara Pastore
- Department of Veterinary Medicine, Università Di Perugia, Via San Costanzo 4, 06126, Perugia, Italy.
| | - John P Verstegen
- TherioExpert LLc. and College of Veterinary Medicine, University of Nottingham, Nottingham, UK
| | - Camillo Pieramati
- Department of Veterinary Medicine, Università Di Perugia, Via San Costanzo 4, 06126, Perugia, Italy
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123, Perugia, Italy
| | - Vincenzo Nicola Talesa
- Department of Medicine and Surgery, Università Di Perugia, P.Le Gambuli, 06132, Perugia, Italy
| | - Marcelo Martìnez Barbitta
- Department of Veterinary Medicine, Università Di Perugia, Via San Costanzo 4, 06126, Perugia, Italy
- Integral Veterinary Reproductive Service URUGUAY (SRVI_UY); Postgraduate Program, Faculty of Veterinary Medicine - University of Republic (UdelaR - UY), Faculty of Veterinary Medicine - University of Republic (UdelaR - UY), Uruguay, Uruguay
| | - Riccardo Orlandi
- Tyrus Veterinary Clinic, Via Aldo Bartocci, 1G, 05100, Terni, Italy
| | - Angela Polisca
- Department of Veterinary Medicine, Università Di Perugia, Via San Costanzo 4, 06126, Perugia, Italy
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Umbach AK, Failing K, Goericke-Pesch S, Wehrend A. Freezing and storage effects on enzyme, electrolyte, and mineral compositions in canine prostatic fluid. Vet Clin Pathol 2019; 48:691-694. [PMID: 31773772 DOI: 10.1111/vcp.12803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/24/2019] [Accepted: 04/22/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is a paucity of information about the storage stability of seminal plasma components in literature. OBJECTIVES This study investigates the potential effects of storage at -18.0°C on the enzyme activities and concentrations of selected electrolytes and minerals in canine prostatic fluid. METHODS Semen was obtained in fractions from ten male dogs, and the third ejaculate fraction was analyzed immediately after sampling and after storage at -18.0°C for 7 days. The following analytes were assessed: gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), sodium, potassium, total calcium, inorganic phosphate, magnesium, zinc, and copper. RESULTS Whereas electrolyte and mineral concentrations were not affected by freezing and 7 days of storage, effects on the enzyme activities were variable. ALP, AST, and LDH activities were significantly decreased (P < .05) in the post-thaw samples compared with the freshly prepared samples. CONCLUSIONS Because freezing and storage of seminal plasma at -18°C had an impact on the activity of some enzymes, analyses should be performed in fresh, not frozen samples.
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Affiliation(s)
- Anne-Kathrin Umbach
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus-Liebig-University, Giessen, Germany.,Clinic for Small Animals Kaiserberg, Duisburg, Germany
| | - Klaus Failing
- Unit for Biomathematics and Data Processing, Justus-Liebig University, Giessen, Germany
| | - Sandra Goericke-Pesch
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus-Liebig-University, Giessen, Germany.,Reproductive Unit of the Clinics - Clinic for Small Animals, University of Veterinary Medicine Hannover Foundation, Hannover, Germany
| | - Axel Wehrend
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus-Liebig-University, Giessen, Germany
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Umbach AK, Failing K, Goericke-Pesch S, Wehrend A. Concentrations of minerals in the canine prostatic fluid. Reprod Domest Anim 2019; 54:1064-1068. [PMID: 31095788 DOI: 10.1111/rda.13467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/12/2019] [Indexed: 11/26/2022]
Abstract
Current knowledge about the composition of the prostate fluid in healthy male dogs is limited and restricted to small case numbers. Furthermore, published data often vary significantly regarding sample processing and analytical methods. Therefore, we aimed to provide data on the composition of electrolytes and minerals in the canine prostatic fluid in a larger population (n = 30 dogs/samples) and to compare these results with the existing literature. Concentrations of sodium, potassium and copper analysed in our population were most consistent with those in the literature. Different to this, concentrations of total calcium, magnesium, zinc and inorganic phosphate varied. Whereas magnesium, zinc and inorganic phosphate seemed to depend on the analysis method, total calcium concentrations differed if centrifugation was performed or not. Our results clearly indicate a need for standardization of methods for analysis of seminal plasma components.
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Affiliation(s)
| | - Klaus Failing
- Unit for Biomathematics and Data Processing, Justus-Liebig University, Giessen, Germany
| | - Sandra Goericke-Pesch
- Reproductive Unit of the Clinics, Clinic for Small Animals, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Axel Wehrend
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus-Liebig-University, Giessen, Germany
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Goericke-Pesch S, Hauck S, Failing K, Wehrend A. Effect of seminal plasma vesicular structures in canine frozen-thawed semen. Theriogenology 2015; 84:1490-8. [DOI: 10.1016/j.theriogenology.2015.07.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/20/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
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