胚盤葉上層、エピブラスト、原外胚葉
- 関
- ectoblast、germ layer、hypoblast
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2014/03/12 13:00:43」(JST)
[Wiki en表示]
Epiblast |
|
Section through the embryo. (Epiblast visible but not labeled.) |
Latin |
epiblastus |
Carnegie stage |
3 |
Days |
8 |
Precursor |
inner cell mass |
Gives rise to |
ectoderm, mesoderm, endoderm |
Code |
TE E5.0.2.2.1.0.1 |
In amniote animal embryology, the epiblast is a tissue type derived either from the blastodisc in reptiles (incl. birds) or the inner cell mass of the blastocyst in mammals. It lies above the hypoblast.
Contents
- 1 Mammals
- 2 Birds
- 3 See also
- 4 References
- 5 External links
Mammals[edit]
In mammalian embryogenesis, the columnar cells of the epiblast are adjacent to the trophoblast, while the cuboidal cells of the hypoblast are closer to the blastocoele. The epiblast, whilst referred to as the primary ectoderm, differentiates to form all three layers of the trilaminar germ disc (ectoderm, mesoderm, and endoderm) in a process called gastrulation.
Birds[edit]
Gastrulation occurs in the epiblast of avian embryos. A local thickening of the epiblast, known as Koller's sickle, is key in inducing the primitive streak, the structure through which gastrulation occurs. [1]
Epiblast diversity[edit]
Human epiblast is disc-shaped as opposed to the mouse epiblast which is cup-shaped.
See also[edit]
- Embryogenesis
- Mammalian embryogenesis
- Hypoblast
References[edit]
- ^ Gilbert SF. Developmental Biology. 10th edition. Sunderland (MA): Sinauer Associates; 2014. Early Development in Birds. Print
External links[edit]
- http://www.embryology.ch/allemand/iperiodembry/carnegie02.html
- http://www.med.umich.edu/lrc/coursepages/M1/embryology/embryo/04secondweek.htm
- http://isc.temple.edu/marino/embryology/EMBII97/sld005.htm
Developmental biology > Human embryogenesis (development of embryo) and development of fetus (TE E2.0)
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|
First three
weeks |
Week 1 |
- Fertilization
- Oocyte activation
- Zygote
- Cleavage
- Morula
- Blastula
- Blastocyst
- Inner cell mass
|
|
Week 2
(Bilaminar) |
|
|
Week 3
(Trilaminar) |
Germ layers |
- Archenteron/Primitive streak
- Primitive pit
- Primitive knot/Blastopore
- Primitive groove
- Gastrula/Gastrulation
- Regional specification
- Embryonic disc
|
|
Ectoderm |
- Surface ectoderm
- Neuroectoderm
- Somatopleuric mesenchyme
- Neurulation
- Neural crest
|
|
Endoderm |
- Splanchnopleuric mesenchyme
|
|
Mesoderm |
- Chorda-
- Paraxial (Somite/Somitomere)
- Intermediate
- Lateral plate
- Intraembryonic coelom
- Splanchnopleuric mesenchyme/Somatopleuric mesenchyme
|
|
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UpToDate Contents
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English Journal
- Modified technique for spermatogonial stem cell transplantation into the seminiferous tubules in mouse model.
- Ma L, Li B, Li L, Wang X, Liu C, Ding Q.SourceDepartment of Urology , General Hospital of Ningxia Medical University , Yinchuan , China.
- Systems biology in reproductive medicine.Syst Biol Reprod Med.2013 Apr;59(2):108-16. doi: 10.3109/19396368.2012.738762. Epub 2012 Nov 8.
- This study aimed to develop a modified technique for spermatogonial stem cell (SSC) transplantation with the aid of an operating microscope in an infertile mouse model. Male neonatal C57BL/6 (B6) mice served as SSC donors. SSCs labeled with the PKH26-GL marker were detected by flow cytometry to veri
- PMID 23134407
- Retention of stem cell plasticity in avian primitive streak cells and the effects of local microenvironment.
- Wang XY, Li Y, Ma ZL, Wang LJ, Chuai M, Münsterberg A, Geng JG, Yang X.SourceKey Laboratory for Regenerative Medicine of the Ministry of Education, Medical College of Jinan University, Guangzhou, China.
- Anatomical record (Hoboken, N.J. : 2007).Anat Rec (Hoboken).2013 Mar;296(3):533-43. doi: 10.1002/ar.22640. Epub 2013 Feb 4.
- Primitive streak (PS) is the first structure occurring in embryonic gastrulation, in which the epiblast cells undergo the epithelial-mesenchymal transition to become the loose mesoderm cells subsequently. Because the mesoderm cells departing from different portions of PS are blessed with disparate m
- PMID 23382139
- Development of an in vitro system for functional studies of ovarian follicular cells in European sea bass (Dicentrarchus labrax).
- Crespo B, Zanuy S, Gómez A.SourceDepartment of Fish Physiology and Biotechnology, Instituto de Acuicultura de Torre la Sal, Consejo Superior de Investigaciones Científicas (CSIC), Torre la Sal, Ribera de Cabanes s/n, 12595, Castellón, Spain.
- Cytotechnology.Cytotechnology.2013 Mar;65(2):273-86. doi: 10.1007/s10616-012-9484-8. Epub 2012 Jul 4.
- The layers of follicular cells surrounding the oocyte and the interactions among them and the germ cells are critical for the successful maintenance of the ovarian functions. We have set up the isolation procedure and culture conditions of sea bass ovarian follicular cells. Their behaviour at three
- PMID 22760552
Japanese Journal
- Generation of Oocytes from Mouse ES/iPS Cells
- ,
- Journal of Mammalian Ova Research 31(3), 70-78, 2014
- … Recently, we developed a culture system in which embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) differentiate into PGC-like cells (PGCLCs) through an epiblast-like cell population. …
- NAID 130004704225
- Epiblast Cell Number and Primary Embryonic Stem Cell Colony Generation Are Increased by Culture of Cleavage Stage Embryos in Insulin
- CAMPBELL Jared M.,LANE Michelle,VASSILIEV Ivan,NOTTLE Mark B
- The Journal of reproduction and development 59(2), 131-138, 2013-04-01
- NAID 10031170770
- Epiblast Cell Number and Primary Embryonic Stem Cell Colony Generation Are Increased by Culture of Cleavage Stage Embryos in Insulin
- CAMPBELL Jared M.,LANE Michelle,VASSILIEV Ivan [他]
- The journal of reproduction and development 59(2), 131-138, 2013-04
- NAID 40019634082
Related Pictures
★リンクテーブル★
[★]
- 英
- epiblast
- 関
- 原腸形成、胚盤葉
- 原腸形成において胚盤葉上層の細胞が原始線条を通って陥入することで三胚葉が完成する
- the epiblast migrating though the primitive streak to form the mesoderm and notochord.
[★]
- 英
- epiblast、ectoblast
- 関
- 胚盤葉下層、胚盤葉上層、胚葉、エピブラスト
[★]
- 英
- epiblast
- 関
- 原外胚葉、胚盤葉上層
[★]
胚盤葉下層
- 関
- epiblast、germ layer
[★]
原外胚葉
- 関
- epiblast