関連する実験動画

Updated: Jun 20, 2026

Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development
14:08

Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development

Published on: January 26, 2013

血管芽細胞のコミットメントは,マウス胚の原始的なストライクで開始されます

Tara L Huber1, Valerie Kouskoff, H Joerg Fehling

  • 1Department of Gene and Cell Medicine, Mount Sinai School of Medicine, New York City, New York 10029, USA.

Nature
|December 4, 2004
PubMed
まとめ

研究者らは,血液と血管細胞の共通の祖先である胚由来ヘマンジオブラストを,ガストルーレーションするマウスの胚で特定した. 初期の発達に不可欠なこれらの細胞は,特定の遺伝子を発現し,後部原始線で発生します.

さらに関連する動画

Isolation of Murine Embryonic Hemogenic Endothelial Cells08:56

Isolation of Murine Embryonic Hemogenic Endothelial Cells

Published on: June 17, 2016

Reprogramming Mouse Embryonic Fibroblasts with Transcription Factors to Induce a Hemogenic Program11:00

Reprogramming Mouse Embryonic Fibroblasts with Transcription Factors to Induce a Hemogenic Program

Published on: December 16, 2016

関連する概念動画

Gastrulation01:56

Gastrulation

Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...
Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...
Mechanism of Angiogenesis01:10

Mechanism of Angiogenesis

Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
Hematopoiesis01:21

Hematopoiesis

The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
Lineage Commitment01:21

Lineage Commitment

Commitment is the  process whereby stem cells:
Development of Blood Vessels01:07

Development of Blood Vessels

The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...