関連する実験動画
Updated: May 5, 2026

12:55
Purification of Progenitors from Skeletal Muscle
Published on: March 16, 2011
19.8K
ミョオゲン系内の細胞多様化:ミョオゲン原始細胞から2種類のミョウブラストのインビトロ生成
Cell
|February 27, 1987
まとめ
単一の原始細胞は,異なる高速および高速/遅いミオブラストを生成し,2つのミオチューブ型を形成します. これは,ミオシン重鎖発現によって引き起こされる,筋肉の発達における連続的な系統のコミットメントを明らかにします.
科学分野:
- 筋肉の発達と細胞系統へのコミットメント.
- ミオゲネシスの分子メカニズム.
- 骨格筋の微分化について.
背景:
- ミョオゲニン原始細胞は,骨格筋の前駆体である.
- ミオチューブ型は,ミオシン重鎖 (MHC) アイソフォームによって区別される.
- 血統のコミットメントを理解することは,筋肉の再生と病気にとって非常に重要です.
研究 の 目的:
- 個々の肌性原始細胞の系統的コミットメントを調査する.
- 単一の原始細胞が多様なミオブラスト型を生成できるかどうかを判断する.
- ミオブラスト系統のコミットメントの時間的側面を解明する.
主な方法:
- クワイルドの胎児の菌性原始細胞のインビトロ培養.
- 単細胞の子孫を追跡するためのクローン分析.
- ミオチューブを分類するために,高速および遅いミオシン重鎖 (MHC) アイソフォーム発現の評価.
- 連続サブクローニングは,連続的な子孫を分析するために行われます.
主要な成果:
- 単一のミオゲニン原始細胞は,ミオブラストの2つの異なるタイプを in vitro で生成することができます.
- これらのミオブラストは,高速と高速/遅いミオゲン系を分離することを約束します.
- 先祖細胞からの初期の子孫は,迅速な系統にコミットされています.
- 同じ祖先の後の子孫は,高速/遅い系統にコミットする.
- ミョートゥーブ型 (高速対混合高速/遅い) は,MHCイソフォーム含有量によって決定されます.
結論:
- ミオジェニックの原始細胞は,配列的な系統へのコミットメントを示します.
- コミットメントプロセスは,独特の高速および高速/遅いミオブラストの形成につながります.
- ミオシン重鎖イソフォームの異なる発現は,ミオブラストが多様な系統へのコミットメントを裏付けている.
- この研究は,筋肉繊維の多様性の遺伝子制御に関する洞察を提供します.
さらに関連する動画
07:51Preparation of Primary Myogenic Precursor Cell/Myoblast Cultures from Basal Vertebrate Lineages
Published on: April 30, 2014
20.0K
11:02Author Spotlight: Investigating Cellular and Molecular Dynamics During Muscle Regeneration Using Cutting-Edge Single-Cell Technologies
Published on: December 1, 2023
1.8K
関連する概念動画
Differentiation of Common Myeloid Progenitor Cells
3.1K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.1K
Formation of Muscle Fibers from Myoblasts
5.9K
De novo myogenesis, or the formation of muscle fibers, begins during the early embryonic stages. The skeletal muscle is formed from somites– blocks of embryonic cell layers. The somites are further divided into dermatomes, myotomes, sclerotomes, and syndetomes. Among these, the myotomes give rise to muscle fibers.
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
Muscle progenitor cells (MPCs) are formed from the myotomes. MPCs express genes that encode the transcription factors Pax3 and Pax7. Along with Pax 3/7, other transcription...
5.9K
Satellite Stem Cells and Muscular Dystrophy
1.7K
Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
1.7K
Forced Transdifferentiation
1.5K
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial...
Artificial...
1.5K
Methods of Nuclear Reprogramming
1.4K
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
1.4K
Cellular Differentiation
5.7K
How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
A zygote is a...
A zygote is a...
5.7K