癌に関連した染色体転位から派生した融合回路RNAの腫瘍性作用
Jlenia Guarnerio1, Marco Bezzi1, Jong Cheol Jeong2
1Cancer Research Institute, Beth Israel Deaconess Cancer Center, Departments of Medicine and Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
Cell
|April 5, 2016
まとめ
染色体トランスロケーションは,がんにおいて新しい円形RNA (circRNAs) を生み出します. これらの融合サークRNAは腫瘍の成長と治療抵抗性を促進し,新しい診断および治療標的を提供します.
科学分野:
- 腫瘍学
- 分子生物学
- ゲノミクス
背景:
- 染色体の転位は腫瘍形成の重要な要因であり,しばしば腫瘍性融合タンパク質を生成する.
- 非コーディングRNA,特に円形RNA (circRNA) のゲノム変異の役割は,がんではほとんど未知のままである.
研究 の 目的:
- 癌における円形のRNA (circRNAs) の形成と機能に対する染色体の転位の影響を調査する.
- これらの新しいcircRNAが腫瘍の発達と進行に寄与するかどうかを判断する.
主な方法:
- 既知の転位を有するがんサンプルからのRNAシーケンシングデータ解析.
- 融合性circRNA (f-circRNA) の生成と機能の実験的検証
- 腫瘍促進特性を評価するために動物モデルを用いた in vivo 研究.
主要な成果:
- 確立された癌に関連した染色体転位は,異なる遺伝子エクソンから融合性circRNA (f-circRNA) を生成する.
- これらのf-circRNAは細胞の変容を促進し,細胞の活性を高めることが判明しました.
- f- circRNAsは,治療に対する耐性を付与し,in vivoでは腫瘍促進能力を示した.
結論:
- 染色体トランスロケーションは,腫瘍性融合のcircRNAs (f-circRNAs) を生成することができる.
- f- circRNAsは,がんの進行,細胞変異,および治療抵抗性において機能的な役割を果たします.
- これらの発見は癌の診断と治療に 重要な意味を持ちます
関連する概念動画
Rous Sarcoma Virus (RSV) and Cancer
6.6K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
6.6K
Rous Sarcoma Virus (RSV) and Cancer
5.9K
5.9K
Cancer-Critical Genes I: Proto-oncogenes
11.8K
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...
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...
11.8K
Cancer-Critical Genes I: Proto-oncogenes
6.0K
6.0K
Cancers Originate from Somatic Mutations in a Single Cell
15.4K
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...
15.4K
Cancers Originate from Somatic Mutations in a Single Cell
3.2K
3.2K


