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M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Formation of Muscle Fibers from Myoblasts01:13

Formation of Muscle Fibers from Myoblasts

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 factors...
M-Cdk Drives Transition Into Mitosis02:15

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Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
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Generation of Myospheres From hESCs by Epigenetic Reprogramming
09:32

Generation of Myospheres From hESCs by Epigenetic Reprogramming

Published on: June 21, 2014

dMycは細胞をスーパーコンペティターに変容させます.

Eduardo Moreno1, Konrad Basler

  • 1Institut für Molekularbiologie, Universität Zürich, Winterthurerstr. 190, CH-8057 Zürich, Switzerland.

Cell
|April 7, 2004
PubMed
まとめ
この要約は機械生成です。

Mycプロトオンコゲンの過剰発現は,Drosophilaの細胞競争を誘発し,高いMycレベルは過剰成長につながり,低いMycレベルはアポトーシスを誘発します. この競争的行動は,BMP/Dpp経路と関連しています.

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Focus Formation: A Cell-based Assay to Determine the Oncogenic Potential of a Gene
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Published on: December 31, 2014

関連する実験動画

Last Updated: Jul 5, 2026

Generation of Myospheres From hESCs by Epigenetic Reprogramming
09:32

Generation of Myospheres From hESCs by Epigenetic Reprogramming

Published on: June 21, 2014

Preparation of Primary Myogenic Precursor Cell/Myoblast Cultures from Basal Vertebrate Lineages
07:51

Preparation of Primary Myogenic Precursor Cell/Myoblast Cultures from Basal Vertebrate Lineages

Published on: April 30, 2014

Focus Formation: A Cell-based Assay to Determine the Oncogenic Potential of a Gene
08:18

Focus Formation: A Cell-based Assay to Determine the Oncogenic Potential of a Gene

Published on: December 31, 2014

科学分野:

  • 細胞生物学 細胞生物学
  • 発達生物学 発達生物学とは
  • がん研究 がん研究

背景:

  • Mycプロトオンコゲンは,ヒトの腫瘍発症に関与している.
  • 腫瘍形成におけるMycの正確な役割は完全に理解されていません.
  • 細胞間の勝利/敗北のシナリオである細胞の競争は,既知の生物学的プロセスである.

研究 の 目的:

  • 細胞の競争におけるMycの役割を調査するために.
  • 不平等なMycレベルが細胞の行動と生存にどのように影響するかを理解するために.
  • Myc,細胞の競争,およびがんの発症の間の関連性を調査する.

主な方法:

  • ドロソフィラのイメージナルディスクをモデルシステムとして利用する.
  • Mycタンパク質のレベルが異なる細胞で実験条件を作り出す.
  • 細胞の除去 (アポトーシス) と過剰増殖を分析する.

主要な成果:

  • 不平等なMycレベルは,細胞競争のようなシナリオを誘導する.
  • dMyc濃度が低い細胞は,アポトーシスを起こします.
  • より高いdMycレベルを持つ細胞は,過剰な増殖を示します.
  • この競争的行動は,BMP/Dpp生存シグナル伝達経路と関連しており,その活性化によって修正することができます.

結論:

  • dMyc濃度の上昇は,細胞に"スーパー競争者"の地位を与えます.
  • この研究は,細胞殺戮によって引き起こされるクローン拡大の新しいメカニズムを明らかにしています.
  • Myc駆動細胞の競争は,腫瘍形成に寄与する可能性があります.