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相关概念视频

Human Genetics01:28

Human Genetics

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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Pleiotropy01:33

Pleiotropy

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Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
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Incomplete Dominance01:43

Incomplete Dominance

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Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
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Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

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Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
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表达驱动的遗传依赖揭示了精准医学的目标.

Abdulkadir Elmas1, Hillary M Layden2, Jacob D Ellis2

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概括

这项研究引入了BEACON,一种通过分析基因表达来找到新的精确瘤点的方法. 它确定了对瘤细胞存活至关重要的新型癌症标,提供了新的治疗途径.

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科学领域:

  • 基因组学就是基因组学.
  • 蛋白质组学是指蛋白质组学.
  • 癌症生物学 癌症生物学

背景情况:

  • 癌细胞表现出异质性,具有多样化的分子变化.
  • 基于DNA突变的向疗法在缺乏可用药物的突变的瘤中是有限的.
  • 对于治疗选择有限的患者,需要新的精确瘤学目标.

研究的目的:

  • 通过表达驱动的依赖来识别新的精确瘤学目标.
  • 开发一种基于基因表达水平的计算方法,以发现癌细胞生存所必需的基因.
  • 创建一个表达驱动的成目标目录,用于治疗开发.

主要方法:

  • 开发了一种贝叶斯式方法,BEACON,用于分析转录组和蛋白组数据以及遗传依赖性概况.
  • 从17个组织谱系的癌症细胞系的数据进行了联合分析.
  • 对已识别的新型目标进行实验验证.

主要成果:

  • 标志标识了已知的可药物基因 (例如,BCL2,ERBB2,EGFR,ESR1,MYC). 标志标识了已知的可药物基因 (例如,BCL2,ERBB2,EGFR,ESR1,MYC).
  • 新的目标被发现,通过mRNA和蛋白质表达驱动的依赖得到验证.
  • 鉴定出的基因对已批准的药物标 (3.8倍) 和可药物瘤标 (7-10倍) 显示出显著的丰富.
  • GRHL2,TP63和PAX5的消耗减少了瘤细胞的生长和依赖细胞的存活率.

结论:

  • 表达式驱动的依赖是一种可行的策略,用于识别新的精确瘤学目标.
  • BEACON提供了一个强大的框架,用于在不同类型的癌症中发现治疗点.
  • 鉴定目标的目录是推进精确瘤治疗的宝贵资源.