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関連する概念動画

Cancer02:18

Cancer

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Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
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Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

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Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
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Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

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Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
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Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

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Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
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Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Cancer Survival Analysis01:21

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Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
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Cancer-Associated Fibroblasts from Mouse Mammary Tumors as Tools for Molecular and Computational Studies
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癌とゲノミクスについて

P A Futreal1, A Kasprzyk, E Birney

  • 1Cancer Genome Project, Sanger Centre, Cambridge, UK.

Nature
|March 10, 2001
PubMed
まとめ
この要約は機械生成です。

研究者は,ヒトゲノム配列を分析することによって,癌を引き起こす新しい遺伝子を探した. この研究では,がん細胞における腫瘍性融合遺伝子の検出は,高い偽陽性率とDNAの質の低いため,信頼性が低いことが判明しました.

さらに関連する動画

Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
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Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
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科学分野:

  • ゲノミクスゲノミクスとは
  • がん研究 がん研究
  • 分子生物学は分子生物学である.

背景:

  • 腫瘍生成を駆動する遺伝子を特定することは,がん研究にとって極めて重要です.
  • 以前の取り組みは,タンパク質の配列を比較することによって,新しい腫瘍抑制遺伝子を発見することに焦点を当てていました.

研究 の 目的:

  • 癌を引き起こす遺伝子を特定するための新しい方法を調査する.
  • がんゲノムに直接発がん性配列変化を検出する可能性を評価する.

主な方法:

  • ヒトゲノム配列で,既知の腫瘍抑制遺伝子のパラログを探した.
  • がんゲノム配列をヒトゲノム草稿と比較して,腫瘍性配列の変化を検出しました.
  • 腫瘍性融合遺伝子の兆候であるキメアトランスクリプトを分析した.

主要な成果:

  • タンパク質配列の比較により,新規の腫瘍抑制遺伝子が見つかりませんでした.
  • 化学的トランスクリプトは,正常な組織と腫瘍組織の両方で検出され,重大な偽陽性を示しました.
  • この研究は,利用可能な癌細胞DNA配列の量と質の限界を強調した.

結論:

  • 現在の方法を使用して,がんゲノムにおける腫瘍性シーケンスの変化を直接探すことは信頼できない.
  • 低品質で限られた量のがんDNA配列は,がんを誘発する遺伝子の特定に重大な課題をもたらす.
  • 精密ながん遺伝子発見のために,DNAシーケンシング技術とデータ分析のさらなる進歩が必要である.