Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2011 / Cilt: 17 - Sayı: 5

Anjiostatinin in vitro Embriyonik Rat Gelişimi Üzerine Etkileri

Effects of Angiostatin on in vitro Embryonic Rat Development

Pages
843–847
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

The results showed that the embryonic growth and development during organogenesis decreased in the presence of angiostatin when compared to embryos grown in WRS.

📌 3 Key Takeaways

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Objective & Hypothesis:The progression of angiogenesis is controlled by a delicate balance between the positive and negative regulators.
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Key Findings & Data:The rat embryos were explanted on day 9.5 and cultured in whole rat serum (WRS) (for control) and adding 0.5, 2.5 and 5 μg/ml angiostatin (for experimentals) in WRS.
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Conclusion & Impact:The results showed that the embryonic growth and development during organogenesis decreased in the presence of angiostatin when compared to embryos grown in WRS.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:embriyo · embriyo kültürü · sıçan

Abstract

The progression of angiogenesis is controlled by a delicate balance between the positive and negative regulators. Angiostatin has potent antiangiogenic effect on endothelial cells, influencing their proliferation, differentiation and other functions. In this study, in vitro effects of angiostatin on total embryonic growth were investigated in rat embryos. The rat embryos were explanted on day 9.5 and cultured in whole rat serum (WRS) (for control) and adding 0.5, 2.5 and 5 μg/ml angiostatin (for experimentals) in WRS. After 48 hours culture period, the embryos from each group were harvested and analysed morphologically. The results showed that the embryonic growth and development during organogenesis decreased in the presence of angiostatin when compared to embryos grown in WRS. Mean morphological scores for the embryos grown in WRS and in the presence of 0.5, 2.5 and 5 μg/ml angiostatin were 59.8±2.02, 34.8±8.52, 22.4±6.41 and 17.8±6.19, yolk sac diameters were 6.0±0.2, 4.8±0.55, 4.5±057 and 4.2±0.39 mm, crown-rump lengths were 5.4±0.23, 4.4±0.42, 4.1±0.87 and 3.7±0.51 mm and mean protein contents of embryos were 140.76±12.21, 112.66±8.67, 89.85±10.89 and 53.77±8.15 μg/ml respectively. Median value of the somite numbers was 24 (24-25) in control group and it was diminished 14 (12-14), 12 (11-17) and 13 (8-17) respectively in experimental groups. As a result the angiostatin could cause developmental retardation of embryo because of its antiangiogenic effect.

Özet

Anjiogenezis süreci anjiogenez inhibitör ve aktivatörleri arasındaki denge ile kontrol edilmektedir. Anjiostatin endotel hücrelerin çoğalmasını, farklılaşmasını ve diğer fonksiyonlarını etkileyerek endotel hücreleri üzerinde antianjiogenik etki gösterir. Bu çalışmada, anjiostatin’in sıçan embriyolarında in vitro total embriyonik gelişim süreci üzerine etkileri araştırıldı. 9.5 günlük embriyolar normal sıçan serumunda (kontrol grubu) ve normal sıçan serumuna 0.5, 2.5 ve 5 μg/ml anjiostatin eklenerek (deney grupları) kültüre edildi. 48 saatlik kültür periyodu sonunda tüm gruplardaki embriyolar morfolojik olarak değerlendirildi. Deney grupları kontrol grubu ile karşılaştırıldığında organagenezis süresince embriyonik gelişim ve büyümede bir gerilemenin varlığı gözlemlendi. Sıçan serumu ve sıçan serumu+0.5, 2.5 ve 5 μg/ml anjiostatin’de kültür edilen embriyolarda ortalama morfolojik skor sırasıyla 59.8±2.02, 34.8±8.52, 22.4±6.41 ve 17.8±6.19, yolk sac çapı 6.0±0.2, 4.8±0.55, 4.5±057 ve 4.2±0.39 mm, baş-kıç uzunluğu 5.4±0.23, 4.4±0.42, 4.1±0.87 ve 3.7±0.51 mm ve ortalama protein içeriği 140.76±12.21, 112.66±8.67, 89.85±10.89 ve 53.77±8.15 μg/ml olarak belirlendi. Ortalama somit sayısı kontrol grubunda 24 (24-25) iken deney gruplarında azalmaktaydı ve sırasıyla 14 (12-14), 12 (11-17) ve 13 (8-17) olarak hesaplandı. Sonuçlar, anjiostatin’in antianjiojenik etkisine bağlı olarak embriyonik gelişimde bir gerilemenin olabileceğini ortaya koymaktadır.

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Cite This Article

ERTEKİN, T., UNUR, E., ÜLGER, H., NİSARİ, M., SAYGILI, Ö. K., ŞAHİN, U., ELMALI, F. (2011). Anjiostatinin in vitro Embriyonik Rat Gelişimi Üzerine Etkileri. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 17 - Sayı: 5, 843–847. https://ajindex.com/articles/273256

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References (10)

  1. Prandini MH, Desroches-Castan A, Feraud O, Vittet D: No evidence for vasculogenesis regulation by angiostatin during mouse embryonic stem cell differentiation. J Cell Physiol, 213 (1): 27-35, 2007. O’Reilly MS, Holmgren L, Shing Y, Chen C, Rosenthal RA, Moses M, Lane WS, Cao Y, Sage EH, Folkman J: Angiostatin: A novel angiogenesis inhibitor that mediates the suppression of metastases by a Lewis lung carcinoma. Cell, 79 (2): 315-328, 1994.
  2. Cao Y, Ji RW, Davidson D, Schaller J, Marti D, Söhndel S, McCance SG, O’Reilly MS, Llinás M, Folkman J: Kringle domains of human angiostatin. Characterization of the anti-proliferative activity on endothelial cells. J Biol Chem, 271 (46): 29461-29467, 1996. Cao Y: Therapeutic potentials of angiostatin in the treatment of cancer. Haematologica, 84 (7): 643-50, 1999.
  3. Kim JH, Kim JC, Shin SH, Chang SI, Lee HS, Chung SI: The inhibitory effects of recombinant plasminogen kringle 1-3 on the neovascularization of rabbit cornea induced by angiogenin, bFGF, VEGF. Exp Mol Med, 31 (4): 203-209, 1999.
  4. Lucas R, Holmgren L, Garcia I, Jimenez B, Mandriota SJ, Borlat F, Sim BK, Wu Z, Grau GE, Shing Y, Soff GA, Bouck N, Pepper MS: Multiple forms of angiostatin induce apoptosis in endothelial cells. Blood, 92 (12): 4730-4741, 1998.
  5. Yokoyama Y, Dhanabal M, Griffioen AW, Sukhatme VP, Ramakrishnan S: Synergy between angiostatin and endostatin: Inhibition of ovarian cancer growth. Cancer Res, 60 (8): 2190-2196, 2000. New DAT: Whole embryo culture and the study of mammalian embryos during organogenesis. Biol Rev Camb Philos Soc, 53 (1): 81-122, 1978.
  6. New DAT, Coppola PT, Cockroft DL: Comparison of growth in vitro and in vivo of post-implantation rat embryos. J Embryol Exp Morphol, 36 (1): 133-144, 1976.
  7. Van Maele-Fabry G, Delhaise F, Picard JJ: Morphogenesis and quantification of the development of post-implantation mouse embryos in vitro. Toxicol In Vitro, 4 (2): 149-156, 1990.
  8. Lowry DH, Rosebrough NJ, Farr AL, Randal RJ: Protein measurements with Folin Phenol reagents. J Biol Chem, 193 (1): 265-275, 1951.
  9. Jin SW, Beis D, Mitchell T, Chen JN, Stainier DY: Cellular and molecular analyses of vascular tube and lumen formation in zebrafish. Development, 132 (23): 5199-5209, 2005. Patan S: Vasculogenesis and angiogenesis as mechanisms of vascular network formation, growth and remodeling. J Neurooncol, 50 (1-2): 1-15, 2000.
  10. Schmidt A, Brixius K, Bloch W: Endothelial precursor cell migration during vasculogenesis. Circ Res, 101 (2): 125-136, 2007. U