Araştırma Makalesi
BibTex RIS Kaynak Göster

Farelerde erken embriyo gelişiminde e-kadherin ekspresyonu

Yıl 2020, Cilt: 91 Sayı: 1, 9 - 14, 15.01.2020
https://doi.org/10.33188/vetheder.579594
https://izlik.org/JA94JE88PK

Öz





Kalsiyum bağımlı hücre adezyon moleküllerinden
kadherin üst ailesinin bir üyesi olan E-kadherin’in erken embriyonik gelişim
sırasında hücre adezyonunda kritik rolleri vardır. E-kadherin ekspresyonunu ve
dağılımını belirlemek için, geç 8 hücre, morula ve blastosist aşamalarında
bulunan embriyolara immünofloresan boyama uygulandı. İlk olarak dişi farelere
superovulasyon uyguladıktan sonra sakrifiye edilerek oviduktar izole edildi.
CD1 dişi farelerin oviduktları FHM HEPES-tamponlu medyum ile yıkanarak 2 hücreli
embriyo elde edildi ve istenilen embriyo aşamalarında kullanılmak üzere KSOM
medyumu içerisinde blastosist aşamasına kadar kültüre edildi. Embriyolar tespit
edildi ve E-kadherin ile immun boyama yapıldıktan sonra, floresan mikroskobu
kullanılarak görüntüler çekildi ve değerlendirildi. E-kadherinin geç 8 hücreli
aşamadan tamamen genişletilmiş blastosist aşamaları boyunca eksprese edildiği
gösterildi. Geç 8 hücreli embriyoda E-kadherin, membranın apikal bölgelerinde
yer almazken sadece hücre-hücre temas bölgelerinde var olduğu gözlemlendi.
Morulada E-kadherin, blastomerlerin yüzeyinde ve hücre-hücre birleşim
alanlarında lokalize olduğu görüldü. Blastosist aşamasındaki embriyolarda,
ICM'nin yüzeyinde lokalize olurken, TE hücrelerinde hücre-hücre temas bölgelerinde
membran boyaması olduğu da gösterilmiştir.  Sonuçlarımız, E-cadherin
kaynaklı hücre adezyonunun, kompaksiyon, trofektoderm epitelyal farklılaşması
ve implantasyon sürecinde önemli rollere sahip olduğunu göstermektedir.



Kaynakça

  • De Vries, WN, Evsikov AV, Haac BE, Fancher KS, Holbrook AE, Kemler R, Solter D, Knowles BB (2004): Maternal beta-catenin and Ecadherin in mouse development. Development, 131, 4435-4445.
  • Eckert JJ, Fleming TP (2008): Tight junction biogenesis during early development. Biochim Biophys Acta, 1778(3), 717-28.
  • Fleming TP, Sheth B, Fesenko I (2001): Cell adhesion in the preimplantation mammalian embryo and its role in trophectoderm differentiation and blastocyst morphogenesis. Front Biosci, 6, D1000-7.
  • Johnson MH, Maro B, Takeichi M (1986): The role of cell adhesion in the synchronisation and orientation of polarization in 8-cell mouse blastomeres. J Embryol Exp Morphol, 93, 239-255.
  • Larue L, Ohsugi M, Hirchenhain J, Kemler R (1994): Ecadherin null mutant embryos fail to form a trophectoderm epithelium. Proc. Natl Acad. Sci. USA, 91, 8263–8267.
  • Mihajlović AI, Bruce AW (2017): The first cell-fate decision of mouse preimplantation embryo development: integrating cell position and polarity. Open Biol, 7(11), pii: 170210. 70210.
  • Mutluay D (2016): Distribution of primitive endoderm and epiblast lineage specific factors in late stage blastocysts Slov Vet Res, 53 (4), 211-7.
  • Niessen CM, Gottardi CJ (2008): Molecular components of the adherens junction. Biochim Biophys Acta, 1778(3), 562-71.
  • Ohsugi M, Hwang SY, Butz S, Knowles BB, Solter D, Kemler R (1996): Expression and cell membrane localization of catenins during mouse preimplantation development. Dev Dyn, 206(4), 391-402.
  • Ohsugi M, Larue L, Schwarz H, Kemler R (1997): Cell-junctional and cytoskeletal organization in mouse blastocysts lacking E-cadherin. Dev Biol, 185(2), 261-71.
  • Paria BC, Zhao X, Das SK, Dey SK, Yoshinaga K (1999): Zonula occludens-1 and E-cadherin are coordinately expressed in the mouse uterus with the initiation of implantation and decidualization. Dev Biol, 208(2), 488-501.
  • Riethmacher D, Brinkmann V, Birchmeier C (1995): A targeted mutation in the mouse E-cadherin gene results in defective preimplantation development. Proc. Natl Acad. Sci. USA, 92, 855–859.
  • Stephenson RO, Yamanaka Y, Rossant J (2010): Disorganized epithelial polarity and excess trophectoderm cell fate in preimplantation embryos lacking E-cadherin. Development, 137(20), 3383-91.
  • Vestweber D, Gossler A, Boller K, Kemler R (1987): Expression and distribution of cell adhesion molecule uvomorulin in mouse preimplantation embryos. Dev Biol, 124(2), 451-6.
  • Yamanaka Y, Ralston A, Stephenson RO, Rossant J (2006): Cell and molecular regulation of the mouse blastocyst. Dev Dyn. 235(9), 2301-14.

Expression of E-cadherin in Early Mouse Development

Yıl 2020, Cilt: 91 Sayı: 1, 9 - 14, 15.01.2020
https://doi.org/10.33188/vetheder.579594
https://izlik.org/JA94JE88PK

Öz

E-cadherin is a member of the cadherin superfamily of calcium-dependent cell adhesion molecules, and has critical roles in cell adhesion during early embryo development. To determine the expression and distribution of E-cadherin, we applied immunofluorescent staining on late 8 cell, morula and blastocyst stage embryos during the experiments. Firstly, we superovulated the females and sacrificed them to isolate oviducts. We flushed 2 cell embryos by using FHM HEPES-buffered medium from the CD1 female mouse oviducts and cultured them in KSOM medium until the blastocyst stage. Embryos were fixed and immunostained with E-cadherin, then images were assessed using a fluorescence microscope. We demonstrate that E-cadherin is expressed throughout the late 8 cell to fully expanded blastocysts. We observed that E-cadherin is present only in the cell-cell contact sites and not in the apical sites of the membrane of late 8 cell stage embryo. In morula, E-cadherin localized on the surface of blastomeres and cell-cell junctions. In blastocyst stage, embryos showed membrane staining in cell-cell contact regions in trophectoderm cells while localized on the surface of inner cell mass. Our results indicate that E-cadherin mediated cell adhesion has major roles on compaction, trophectoderm epithelial differentation and implantation.

Kaynakça

  • De Vries, WN, Evsikov AV, Haac BE, Fancher KS, Holbrook AE, Kemler R, Solter D, Knowles BB (2004): Maternal beta-catenin and Ecadherin in mouse development. Development, 131, 4435-4445.
  • Eckert JJ, Fleming TP (2008): Tight junction biogenesis during early development. Biochim Biophys Acta, 1778(3), 717-28.
  • Fleming TP, Sheth B, Fesenko I (2001): Cell adhesion in the preimplantation mammalian embryo and its role in trophectoderm differentiation and blastocyst morphogenesis. Front Biosci, 6, D1000-7.
  • Johnson MH, Maro B, Takeichi M (1986): The role of cell adhesion in the synchronisation and orientation of polarization in 8-cell mouse blastomeres. J Embryol Exp Morphol, 93, 239-255.
  • Larue L, Ohsugi M, Hirchenhain J, Kemler R (1994): Ecadherin null mutant embryos fail to form a trophectoderm epithelium. Proc. Natl Acad. Sci. USA, 91, 8263–8267.
  • Mihajlović AI, Bruce AW (2017): The first cell-fate decision of mouse preimplantation embryo development: integrating cell position and polarity. Open Biol, 7(11), pii: 170210. 70210.
  • Mutluay D (2016): Distribution of primitive endoderm and epiblast lineage specific factors in late stage blastocysts Slov Vet Res, 53 (4), 211-7.
  • Niessen CM, Gottardi CJ (2008): Molecular components of the adherens junction. Biochim Biophys Acta, 1778(3), 562-71.
  • Ohsugi M, Hwang SY, Butz S, Knowles BB, Solter D, Kemler R (1996): Expression and cell membrane localization of catenins during mouse preimplantation development. Dev Dyn, 206(4), 391-402.
  • Ohsugi M, Larue L, Schwarz H, Kemler R (1997): Cell-junctional and cytoskeletal organization in mouse blastocysts lacking E-cadherin. Dev Biol, 185(2), 261-71.
  • Paria BC, Zhao X, Das SK, Dey SK, Yoshinaga K (1999): Zonula occludens-1 and E-cadherin are coordinately expressed in the mouse uterus with the initiation of implantation and decidualization. Dev Biol, 208(2), 488-501.
  • Riethmacher D, Brinkmann V, Birchmeier C (1995): A targeted mutation in the mouse E-cadherin gene results in defective preimplantation development. Proc. Natl Acad. Sci. USA, 92, 855–859.
  • Stephenson RO, Yamanaka Y, Rossant J (2010): Disorganized epithelial polarity and excess trophectoderm cell fate in preimplantation embryos lacking E-cadherin. Development, 137(20), 3383-91.
  • Vestweber D, Gossler A, Boller K, Kemler R (1987): Expression and distribution of cell adhesion molecule uvomorulin in mouse preimplantation embryos. Dev Biol, 124(2), 451-6.
  • Yamanaka Y, Ralston A, Stephenson RO, Rossant J (2006): Cell and molecular regulation of the mouse blastocyst. Dev Dyn. 235(9), 2301-14.
Toplam 15 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Veteriner Cerrahi
Bölüm Araştırma Makalesi
Yazarlar

Duygu Mutluay 0000-0003-3286-130X

Gönderilme Tarihi 18 Haziran 2019
Kabul Tarihi 3 Eylül 2019
Yayımlanma Tarihi 15 Ocak 2020
DOI https://doi.org/10.33188/vetheder.579594
IZ https://izlik.org/JA94JE88PK
Yayımlandığı Sayı Yıl 2020 Cilt: 91 Sayı: 1

Kaynak Göster

Vancouver 1.Duygu Mutluay. Expression of E-cadherin in Early Mouse Development. Vet Hekim Der Derg. 01 Ocak 2020;91(1):9-14. doi:10.33188/vetheder.579594

Veteriner Hekimler Derneği Dergisi açık erişimli bir dergi olup, derginin yayın modeli Budapeşte Erişim Girişimi (BOAI) bildirisine dayanmaktadır. Yayınlanan tüm içerik, çevrimiçi ve ücretsiz olarak sunulan Creative Commons CC BY-NC 4.0 lisansı altında lisanslanmıştır. Yazarlar, Veteriner Hekimler Derneği Dergisi'nde yayınlanan eserlerinin telif haklarını saklı tutarlar.


Veteriner Hekimler Derneği / Turkish Veterinary Medical Society