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相关概念视频

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...
7.7K
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...
16.4K
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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Updated: Feb 21, 2026

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells
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In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells

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在B-CLL中的表观遗传学

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
概括
此摘要是机器生成的。

表观遗传变化,包括DNA甲基化和microRNAs,在B细胞慢性淋巴细胞白血病 (B-CLL) 中至关重要. 分析这些表观遗传变化有助于预测疾病的进展和患者的生存率.

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Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation
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Genome-wide Analysis of HDAC Inhibitor-mediated Modulation of microRNAs and mRNAs in B Cells Induced to Undergo Class-switch DNA Recombination and Plasma Cell Differentiation
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相关实验视频

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科学领域:

  • 血液学 血液学 血液学
  • 在瘤学瘤学.
  • 分子生物学分子生物学

背景情况:

  • 乙细胞慢性淋巴细胞白血病 (B-CLL) 是成年人中最常见的血液性恶性瘤.
  • B-CLL表现出多种不同的临床行为,从惰到攻击性的形式,抵抗标准疗法.

研究的目的:

  • 调查表观遗传改变在B-CLL预后中的作用.
  • 建立表观遗传分析作为理解B-CLL进展和预测患者结果的关键方法.

主要方法:

  • 对B-CLL.的表观遗传机制的分析.
  • 专注于DNA甲基化,基因素修饰和microRNA调节.

主要成果:

  • 表观遗传变化显著影响B-CLL的预后.
  • 特定的表观遗传变化与疾病进展和治疗反应有关.

结论:

  • 表观遗传特征分析对于理解B-CLL至关重要.
  • 表观遗传分析有助于预测B-CLL的治疗反应和患者存活率.