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Epigenetic Regulation01:37

Epigenetic Regulation

4.0K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
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Epigenetic Regulation01:46

Epigenetic Regulation

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Inheritance of Chromatin Structures03:17

Inheritance of Chromatin Structures

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Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
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Histone Modification02:32

Histone Modification

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The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
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Lineage Commitment01:21

Lineage Commitment

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Commitment is the  process whereby stem cells:
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B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

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The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
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In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
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B-CLLにおける表遺伝学

Alexandra Chu1, Flavia Soto2, Rodrigo Hurtado2

  • 1The International Circle of Genetic Studies Project New York Chapter, New York City, New York, USA.

International journal of genomics
|February 20, 2026
PubMed
まとめ
この要約は機械生成です。

DNAメチル化とマイクロRNAを含む表遺伝的変異は,B細胞慢性リンパ球性白血病 (B-CLL) で決定的に重要です. これらのエピジェネティック変化を分析することで,疾患の進行と患者の生存率を予測できます.

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科学分野:

  • 血液学 ヘマトロジ
  • 腫瘍学 腫瘍学
  • 分子生物学は分子生物学である.

背景:

  • B-細胞慢性リンパ球性白血病 (B-CLL) は,成人における最も一般的な血液学的悪性腫瘍である.
  • B-CLLは,標準的な治療法に抵抗する怠惰から攻撃的な形態までの多様な臨床行動を示しています.

研究 の 目的:

  • B-CLLの予後におけるエピジェネティック変異の役割を調査する.
  • B-CLLの進行を理解し,患者のアウトカムを予測するための重要な方法として,エピジェネティック分析を確立する.

主な方法:

  • B-CLL.における表遺伝的メカニズムの分析.
  • DNAメチル化,ヒストンの改変,およびマイクロRNAの調節にフォーカスする.

主要な成果:

  • エピジェネティック変異は,B-CLLの予後に影響を及ぼします.
  • 特定のエピジェネティックの変化は,疾患の進行と治療反応と関連しています.

結論:

  • エピジェネティックプロファイリングは,B-CLLを理解するために不可欠です.
  • エピジェネティック分析は,B-CLLにおける治療反応と患者の生存率を予測するのに役立ちます.