Journals / Mersin Üniversitesi Sağlık Bilimleri Dergisi / 2011 / Cilt: 4 - Sayı: 2

Preadipositlerde (3T3-L1) Östrojenin Adiposit Diferansiyasyonu Üzerine Etkisi: Rho/Rho-kinaz Yolağının Olası Katkısı

Pages
22–28
Publication Date
2011-06-01
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)

However, this impact does not appear to be mediated via Rho/Rho-kinase pathway.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Abstract Effects of Estrogen on Adipocyte Diferentiation in Preadipocyte Cell Line (3T3-L1): Possible Involvement of Rho/Rho-Kinase Signaling Aim: In this study, it was aimed to investigate potential effects of estrogen on the differantiation of preadipocytes (3T3-L1) to mature adipocytes and the possible involvement of Rho/Rho-kinase pathway in this matter.
📊
Key Findings & Data:Method: 3T3-L1 cell suspensions were plated and incubated at 37oC under 5% CO2.
💡
Conclusion & Impact:However, this impact does not appear to be mediated via Rho/Rho-kinase pathway.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:adiposit diferansiyasyonu · östrojen · rho-kinaz

Abstract

Abstract Effects of Estrogen on Adipocyte Diferentiation in Preadipocyte Cell Line (3T3-L1): Possible Involvement of Rho/Rho-Kinase Signaling Aim: In this study, it was aimed to investigate potential effects of estrogen on the differantiation of preadipocytes (3T3-L1) to mature adipocytes and the possible involvement of Rho/Rho-kinase pathway in this matter. Method: 3T3-L1 cell suspensions were plated and incubated at 37oC under 5% CO2. Confluent flasks were passaged. Next, 3T3-L1 cells were treated with estradiol at various concentrations (10-9, 10-8, 10-7, 10-6, 10-5 and 10-4M) for a period of 0-2 and 0-8 days. The experiment was concluded on the day of 8. Adipocyte differentiation was assessed by lipid-specific Oil Red O staining. The Oil Red O nontreated cells were homogenized. Subsequently, RhoA, ROCK-1 and ROCK-2 protein expression levels in these cells were measured by Western-Blotting technique. Results: When applied in the beginning of the differentiation process (the 2nd day), 17β-estradiol decrease the differentiation. On the contrary, it becomes ineffective when applied for 8 days. In addition, 17β-estradiol did not significantly change ROCK-1, ROCK-2 and RhoA protein expression levels. Conclusion: 17β-estradiol, the main estrogenic hormone, has diverse effects on adipocyte differentiation at different stages of differentiation. However, this impact does not appear to be mediated via Rho/Rho-kinase pathway.

Özet

Türkçe Özet: Amaç: Bu çalışmada estrojenin, preadipositlerin (3T3-L1) olgun yağ hücrelerine diferansiyasyonuna olan etkilerinin incelenmesi ve ayrıca bu etkilere, eğer varsa, Rho/Rho kinaz yolağının katkısını araştırılması amaçlandı. Yöntem: 3T3-L1 hücreleri kültür flasklarına ekilerek 37ºC\'de %5 CO2\'li ortamda inkübe edildi. Konfluent olan flasklar pasajlanarak çoğaltıldı. Estradiol 10-9, 10-8, 10-7, 10-6, 10-5 ve 10-4M konsantrasyonda 3T3-L1 hücrelerine 2 ve 8 gün boyunca uygulandı. 8. günde deney sonlandırıldı ve adiposit diferansiyasyonu Oil Red O boyama ile değerlendirildi. Oil Red uygulanmayan hücreler ise homojenize edilerek Western-Blot yöntemi ile RhoA, ROCK-1 ve ROCK-2 protein ekspresyon düzeyleri ölçüldü. Bulgular: 17β-estradiol diferansiyasyon sürecinin başlangıcında (2. günde) uygulandığında diferansiyasyonu azaltmaktadır. Buna karşılık 8 gün boyunca uygulandığında ise etkisiz bulunmuştur. Ayrıca 17β-estradiol RhoA, ROCK-1 ve ROCK-2 protein ekspresyon düzeylerini anlamlı olarak değiştirmedi. Sonuç: 17β-estradiol, preadiposit diferansiyasyon sürecine farklı zaman dilimlerinde farklı etkilerle katkı sağlamaktadır. Ancak, bu etki Rho/Rho-kinaz yolağı aracılı görünmemektedir.

🔖

Cite This Article

PEKTAŞ, M., KURT, A. H., TİFTİK, R. N., ÜN, İ., BÜYÜKAFŞAR, K. (2011). Preadipositlerde (3T3-L1) Östrojenin Adiposit Diferansiyasyonu Üzerine Etkisi: Rho/Rho-kinaz Yolağının Olası Katkısı. Mersin Üniversitesi Sağlık Bilimleri Dergisi, Cilt: 4 - Sayı: 2, 22–28. https://ajindex.com/articles/44145

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (4)

  1. Jafl'e T. Schwartz B. Leptin promotes motility and invasiveness in human colon cancer cells by activating multiple signal-transduction pathways. Int J Cancer ı123tl ”254356. Cooke PS. Heine PA, Taylor IA. Ltıbahn DB. The role of estrogen and estrogen receptor-0t in male adipose tissue. Mn Ce} Emior'rinui 53001379412): 147—54. Hong L. Colpan A. Peptan IA, Daw J, George A, Evans CA. "."-Beta estradiol enhances osteogenic and adipogenic differentiation of human adipose—derived stromal cells. Tissue Eng 2007:13(6):l [97-203.
  2. Heim M, Frank O. Kampmann G. Sochocky N. Pennimpede T. Fuchs P. Hunziker W. Weber P. Martin [. Bendik I. The phytoestrogen genistein enhances osteogenesis and represses adipogenic differentiation of human primary hone marrow stromal cells. Endocrinology 2004;l45(2):848-59.
  3. Okazaki R. Inoue D. Shibata M, Saika M. Kido S, Ooka H, Tomiyama H. Sakamoto Y, Matsumoto T. Estrogen promotes early osteoblast differentiation and inhibits adipoeyte differentiation in mouse bone marrow stromal cell lines that express estrogen receptor (ER) alpha or beta. Endocrinology 2002; l43(6'):2349—56. Giretti MS. Fıt XD. De Rosa G. Sarotto I. Baldacei C. Garibaldi S. Manuella P. Biglia N. Sismondi P, Genazzani AR, Simoneini T. Extra—nuclear signalling of estrogen receptor to breast cancer cytoskeletal remodelling. migration and invasion. PLUS ONE 2008;3(5):2790. Chrissobolis S. Budzyn K. Marley PD. Sohey CG. Evidence that estrogen suppresses Rhovkinasc function in the cerebral circulation in vivo. Stroke 2004;35(9):2200-5.
  4. LetrCtırrie YR. Monroe D, McIntosh MK. Dchydroepiandrosterone and related steroids alter 3T3—Ll preadipocyte proliferation and differentiation. Comp Biochem Physiol C Phnrrnneoi' Tarieol Endocrine;123(1):l7-25. Kang SI. Ko HC. Shin HS. Kim HM. Hong YS. Lee NH. Kim SJ. Fucoxanthin exerts differing effects on 3T3—Ll cells according to differentiation stage and inhibits glucose uptake in mature adipocytes. Bioehem Biopl'tys Res Continua 20] l:409(4):769-74. MacDougald OA. Lane MD. Transcriptional regulation of gene expression during adipocyte differentiation. Annn Rev Biot—hem 1995;64:345—73. Tengku-Muhammad TS. Hughes TR. Cryer A. Ramji DP. Differential regulation of lipoprotein lipase in the macrophage 1774.2 cell line by cytokines. Crtokine;8(7):525—33. Hamosh M. Hamosh P. The effect of estrogen on the lipoprotein lipase activity of rat adipose tissue. J Clin Invest l975‘.55(5}:l I32—5. Cooke PS. Naaz A. Role of estrogens in adipoeyte develo