関連する実験動画
Updated: Sep 17, 2026

08:36
In Vitro Assay to Study Tumor-macrophage Interaction
Published on: August 1, 2019
まとめ
ネズミの線維サルコマはしばしばプレオクローン性であり,複数の細胞クローンを含んでいる. 彼らのクローン組成は組織培養と移植の間に変化し,サブ集団の成長動態の変化を示唆しています.
科学分野:
- 腫瘍学 腫瘍学
- 癌生物学 癌生物学について
- 遺伝学 遺伝学とは
背景:
- 癌の発症は,変異した細胞クローンに依存しています.
- 女性におけるX染色体の不活性化により,モノクローナル腫瘍のマーカーであるモザイクが形成されます.
- ネズミの線維肉腫に関する以前の研究では,クローン組成を評価するために形態学的証拠を使用しました.
研究 の 目的:
- ネズミの繊維サルコマのクローン組成を調べるために.
- 実験操作中に腫瘍のクローン組成が変化するかどうかを判断する.
- 腫瘍の発達におけるクローン異質性の影響を理解する.
主な方法:
- フォスフォグリセラートキナーゼ (PGK-1) アロ酵素に同同位体性を持つヒト相容れないマウスサブストレインを使用した.
- ネズミのハイブリッドで化学的に誘発された線維肉腫.
- 酵素フェノタイプ分析と移植実験を通じて腫瘍のクローン組成を評価した.
- 腫瘍のサブラインを培養し,それを先天的な宿主に移植した.
主要な成果:
- ネズミの繊維サルコマはしばしばプレオクローナルであることが確認されました.
- 組織培養中にクローン組成の有意な変化を示した.
- 遺伝的宿主への移植時に,クローン組成の顕著な変化が観察されました.
- クローンされたサブラインは,選択または協力的な生存メカニズムを示唆する異なった移植性を示すことを発見しました.
結論:
- ミューリン・フィブロサルコマのクローン組成はダイナミックで,大きく変化することがあります.
- これらの変化は,腫瘍亜集団の微分成長運動によって引き起こされる可能性が高い.
- クローン異質性は,腫瘍の進行,転移,再発において重要な役割を果たす可能性があります.
関連する概念動画
Cancer
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.
The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
Metastasis
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
T Cell Activation and Clonal Selection
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
Cytotoxic T Cells-mediated Immune Response
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Tumor Immunotherapy
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.

