Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2012 / Cilt: 18 - Sayı: 2

Erkek domuzlarda testisler için hedef bir gen olan aromataz (cyp19) üzerine araştırma

Investigation on porcine aromatase (cyp19) as a specific target gene for boar testis

Pages
243–248
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

These results shed new light on the roles of porcine CYP19 in spermatogenesis as a specific target gene for testis.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Cytochrome P450 aromatase is the key enzyme in estrogen biosynthesis, encoded by CYP19 gene.
📊
Key Findings & Data:Impairment of spermatogenesis associated with a decrease in sperm motility and inability to fertilize oocytes in mice due to the lacking of CYP19 was observed.
💡
Conclusion & Impact:These results shed new light on the roles of porcine CYP19 in spermatogenesis as a specific target gene for testis.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:transkripsiyon · leydig hücreleri · sitokrom P-450

Abstract

Cytochrome P450 aromatase is the key enzyme in estrogen biosynthesis, encoded by CYP19 gene. Impairment of spermatogenesis associated with a decrease in sperm motility and inability to fertilize oocytes in mice due to the lacking of CYP19 was observed. However, it is little known about the CYP19 roles in boar spermatogenesis and fertility. Therefore, the aim of this research was to investigate the mRNA and protein expression of CYP19 in boar reproductive tissues from boars with different sperm quality. For mRNA and protein expression study, a total of six boars were divided into two groups with Group 1 (G-I) and Group 2 (G-II) where G-I was characterized for relatively a better sperm quality. The result showed that the CYP19 transcript was not expressed throughout the male reproductive system. mRNA expression of CYP19 was higher only in testis. CYP19 expression was similar in testis collected from G-I and G-II boars. The CYP19 protein expression results from western blot were different with the results of qRT-PCR. The CYP19 protein was higher in testis collected from G-II than G-I boars. The CYP19 protein localization in testis showed a strong staining only in the cytoplasm Leydig cell. These results shed new light on the roles of porcine CYP19 in spermatogenesis as a specific target gene for testis.

Özet

Sitokrom P450 aromataz östrojen üretiminde önemli bir enzim olup, CYP19 geni tarafından ifade edilir. CYP19 geninin yokluğunda farelerde sperm üretiminin zarar gördüğü ve ilişkili olarak spermlerin yüzme ve yumurtaları dölleme kabiliyetinin azaldığı gözlenmiştir. Buna karşılık CYP19’un domuz sperm üretiminde ve yumurtaların döllenmesinde nasıl bir rol oynadığı bilinmemektedir. Bu nedenle, bu calışmanın amacı CYP19 mRNA ve protein ifadesini farklı sperm kalite özelliklerine sahip olan erkek domuzların üreme organı dokularında araştırmaktır. mRNA ve protein ifadesi çalısması için altı erkek domuz, grup 1 (G-I) ve grup 2 (G-II) olarak iki gruba ayrılmıştır. G-I hayvanlar göreceli olarak G-II hayvanlara göre daha iyi sperm özelliklerine sahiptir. Sonuçlar CYP19 mRNA ifadesinin tüm erkek üreme organlarında ifade edilmediğini göstermiştir. CYP19’un mRNA ifadesi en çok testis dokularında gözlenmiştir ve ayrıca G-I ve G-II domuzlardan alınan testis örneklerinde aynı düzeyde tespit edilmiştir. CYP19’un Western-Blot protein ifadesi sonuçları qRT-PCR sonuçlarından farklı olarak gözlenmiştir. CYP19 protein ifadesi G-II hayvanlarda G-I hayvanlara göre daha yüksek düzeyde gözlenmiştir. Testiste CYP19 protein lokalizasyonu sitoplazma Leydig hücrelerinde güçlü bir sinyal göstermiştir. Sonuçlar, CYP19 geninin domuzlarda sperm üretimi için testislerde spesifik bir hedef gen olduğuna dair yeni bulgular ortaya koymuştur.

🔖

Cite This Article

ÇINAR, M. U., GUNAWAN, A. (2012). Erkek domuzlarda testisler için hedef bir gen olan aromataz (cyp19) üzerine araştırma. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 18 - Sayı: 2, 243–248. https://ajindex.com/articles/273707

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  1. Lemazurier E, Sourdaine P, Nativelle C, Plainfosse B, Seralini GE: Aromatase gene expression in the stallion. Mol Cell Endocrinol, 178 (1-2): 133-139, 2001
  2. Carreau S, Silandre D, Bourguiba S, Hamden K, Said L, Lambard S, Galeraud-Denis I, Delalande C: Estrogens and male reproduction: A new concept. Braz J Med Biol Res, 40 (6): 761-768, 2007
  3. Simpson ER, Zhao Y, Agarwal VR, Michael MD, Bulun SE, Hinshelwood MM, Graham-Lorence S, Sun TJ, Fisher CR, Qin KN: Aromatase expression in health and disease. Recent Progress in Hormone Research, Proceedings of the 1996 Conference, Vol. 52, 52, 185-214, 1997
  4. Setchell BP, Cox JE: Secretion of free and conjugated steroids by the horse testis into lymph and venous blood. J Reprod Fertil, 32, 123-127, 1982
  5. Almadhidi J, Seralini GE, Fresnel J, Silberzahn P, Gaillard JL: Immunohistochemical localization of cytochrome-P450 aromatase in equine gonads. J Histochem Cytochem, 43 (6): 571-577, 1995
  6. Eisenhauer KM, Mccue PM, Nayden DK, Osawa Y, Roser JF: Localization of aromatase in equine Leydig-cells. Domest Anim Endocrin, 11 (3): 291-298, 1994
  7. Saez JM: Leydig-Cells - Endocrine, Paracrine, and Autocrine Regulation. Endocr Rev, 15 (5): 574-626, 1994
  8. Robertson KM, O’Donnell L, Jones MEE, Meachem SJ, Boon WC, Fisher CR, Graves KH, McLachlan RI, Simpson ER: Impairment of spermatogenesis in mice lacking a functional aromatase (cyp 19) gene. Proceedings of the National Academy of Sciences of the United States of America, 96 (14): 7986-7991, 1999
  9. Singh D, Tiwari A, Kumar OS, Sharma MK: Expression of cytochrome P450 aromatase transcripts in buffalo (Bubalus bubalis)-ejaculated spermatozoa and its relationship with sperm motility. Domest Anim Endocrin, 34 (3): 238-249, 2008
  10. Aquila S, Sisci D, Gentile M, Middea E, Catalano S, Carpino AVR, Ando S: Estrogen receptor (ER)alpha and ER beta are both expressed in human ejaculated spermatozoa: Evidence of their direct interaction with phosphatidylinositol-3-OH kinase/Akt pathway. J Clin Endocr Metab, 89 (3): 1443-1451, 2004
  11. Hoffmann B, Landeck A: Testicular endocrine function, seasonality and semen quality of the stallion. Anim Reprod Sci, 57 (1-2): 89-98, 1999
  12. Kaewmala K, Uddin MJ, Cinar MU, Grosse-Brinkhaus C, Jonas E, Tesfaye D, Phatsara C, Tholen E, Looft C, Schellander K: Association study and expression analysis of CD9 as candidate gene for boar sperm quality and fertility traits. Anim Reprod Sci, 125 (1-4): 170-179, 2011
  13. Inkster S, Yue W