Journals / Marmara Medical Journal / 2015 / Cilt: 28 - Sayı: 1

The effects of a seeding process on the cryopreservation of cellular suspensions of prepubertal testis

Prepubertal testis hücre süspansiyonun dondurulmasında seeding etkisi

Pages
13–20
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: In this study, we compared two carriers to observe the effect of seeding during cryopreservation of prepubertal testicular cell suspensions and found that seeding in straw was the preferable.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The cryopreservation of prepubertal testicular tissue promises to preserve fertility in boys under cancer treatment.
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Key Findings & Data:Materials and Methods: Testicular cell suspensions of 7-8 day old male Wistar rats were frozen by a programmed slow freezing method.
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Conclusion & Impact:Conclusion: In this study, we compared two carriers to observe the effect of seeding during cryopreservation of prepubertal testicular cell suspensions and found that seeding in straw was the preferable.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The cryopreservation of prepubertal testicular tissue promises to preserve fertility in boys under cancer treatment. The effects of a seeding process was investigated using different carriers for prepubertal testicular cell suspensions in order to develop an appropriate method for cryopreservation. Materials and Methods: Testicular cell suspensions of 7-8 day old male Wistar rats were frozen by a programmed slow freezing method. The straw and cryotube selected as carriers underwent a seeding process. The morphological effects on spermatogonial stem cells and Sertoli cells were evaluated semi-quantitatively by light microscopy and qualitatively with a transmission electron microscope. Results: The rate of vitality with or without seeding in straw was respectively, 90.6% (±3.0), 89.4 (±1.3) and in cryotube 77.6 (±4.2) and 85.4 (±2.7). The seeding process, showed no significant difference between the straw groups, but a significant difference was seen between the cryotube groups (p<0.0001). The nuclei, cytoplasmic structures and membranes of Sertoli and spermatogonial stem cells, showed less degeneration in the straw than in the cryotubes when the seeding process was applied. Conclusion: In this study, we compared two carriers to observe the effect of seeding during cryopreservation of prepubertal testicular cell suspensions and found that seeding in straw was the preferable.

Özet

Amaç: Prepubertal testis kriyoprezervasyonu, kanser tedavisi yapılacak erkek çocuklarda fertilitenin korunması için günümüz teknolojisinde umut vadetmektedir. Kriyoprezervasyonda en uygun yöntemin geliştirilmesi için prepubertal testis hücre süspansiyonunda farklı taşıyıcılar kullanarak seeding etkisi araştırıldı. Gereç ve Yöntem: Yedi-sekiz günlük Wistar yavru erkek sıçan testis hücre süspansiyonları, programlı yavaş dondurma yöntemiyle donduruldu. Taşıyıcı olarak seçilen yüksek güvenlikli straw ve kriyotüpe seeding uygulandı. Spermatogonyal kök hücreler ve Sertoli hücreleri üzerindeki morfolojik etki, semi-kantitatif olarak ışık, kalitatif olarak geçirimli elektron mikroskobunda incelendi. Bulgular: Canlılık oranı, yüksek güvenlikli straw’da seeding uygulanmayan ve uygulanan gruplarda sırasıyla %90,6±3,0, %89,4±1,3, kriyotüpte %77,6±4,2 ve %85,4±2,7 bulundu. Seeding uygulanmasıyla, canlılık oranında straw grupları arasında fark görülmemesine rağmen, kriyotüp grupları arasında fark anlamlıydı (p<0,0001). Straw1. ve 2. grupları ile kriyotüp 3. ve 4. grupları arasında da fark anlamlıydı (p<0,0001 ve p< 0,05). Spermatogonyal kök hücreler ve Sertoli hücrelerinin ışık ve elektron mikroskobik incelemesinde, nukleus ve sitoplazmik yapıların ve membranların seeding uygulanan gruplarda belirgin fark yarattığı, ayrıca yüksek güvenlikli straw’ın testis hücre süspansiyonu için kriyotüpe oranla daha üstün bir taşıyıcı olduğu görüldü. Sonuç: Prepubertal testis hücre süspansiyonunun kriyoprezervasyonunda farklı taşıyıcılarda seeding etkisinin ilk defa kıyaslandığı çalışmamızda, taşıyıcı olarak yüksek güvenlikli straw’ın kullanıldığı seeding uygulanan yöntemin en uygun yöntem olduğu sonucuna varıldı.

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Cite This Article

KERVANCIOĞLU, G., ÇETİNEL, Ş., DEMİRCİ, E. K., EKTER, G. K., KERVANCIOĞLU, M. E. (2015). The effects of a seeding process on the cryopreservation of cellular suspensions of prepubertal testis. Marmara Medical Journal, Cilt: 28 - Sayı: 1, 13–20. https://ajindex.com/articles/283946

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References (1)

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