中性粒子は循環する腫瘍細胞を護衛し,細胞循環の進行を可能にします
Barbara Maria Szczerba1, Francesc Castro-Giner1,2, Marcus Vetter3,4
1Department of Biomedicine, Cancer Metastasis Lab, University of Basel and University Hospital Basel, Basel, Switzerland.
Nature
|February 8, 2019
まとめ
癌細胞 (CTC) は血流中の中性細胞と結合し,細胞循環の進行と転移を促進する. この相互作用をターゲットにすることで,乳がんの新たな治療戦略が提供されるかもしれません.
科学分野:
- 免疫学
- 腫瘍学
- 分子生物学
背景:
- 癌細胞と免疫細胞の相互作用を理解することは 新種の癌治療法の開発に不可欠です
- 研究は主に原発性腫瘍に焦点を当てており,がんの拡散における免疫細胞の役割は十分に研究されていない.
- 転移の前駆体である循環腫瘍細胞 (CTC) は,時として循環中の白血球 (WBC) と一緒に発見されるが,その相互作用は十分に理解されていない.
研究 の 目的:
- CTC に関連する白血球のアイデンティティと機能を特徴づける.
- CTCとWBCの相互作用を制御する分子特性を解明する.
- 癌の転移におけるこれらの相互作用の役割を調査する.
主な方法:
- 乳がん患者およびマウスモデルからの個々のCTC関連白血球および癌細胞の分離および特徴付け.
- CTC-WBCクラスタの単細胞RNAシーケンシング (scRNA-seq)
- 中性粒子の関連CTCと単独のCTCのトランスクリプトミックの比較
主要な成果:
- 分析されたほとんどの症例では,CTCは中性粒子が主だった.
- 中性粒子の関連CTCとCTC単独の比較では,細胞サイクル進行に関連した異なった発現遺伝子をトランスクリプトミア分析で明らかにした.
- 特定の細胞- 細胞結合とサイトカイン受容体のペアは,CTC- 中性粒子の主要媒介体として特定されました.
結論:
- 中性粒子のCTCとの関連は,血液中の細胞サイクル進行を促進する.
- この相互作用はCTCの転移の可能性を拡大する.
- CTCと中性粒子の相互作用を標的とした治療は,乳がん治療の潜在的な戦略です.
関連する概念動画
What is the Cell Cycle?
10.5K
The cell cycle refers to the sequence of events occurring throughout a typical cell’s life. In eukaryotic cells, the somatic cell cycle has two stages: the interphase and the mitotic phase. During interphase, the cell grows, performs its basic metabolic functions, copies its DNA, and prepares for mitotic cell division. Then, during mitosis and cytokinesis, the cell divides its nuclear and cytoplasmic materials, respectively. This generates two daughter cells that are identical to the...
10.5K
What is the Cell Cycle?
242.7K
The cell cycle refers to the sequence of events occurring throughout a typical cell’s life. In eukaryotic cells, the somatic cell cycle has two stages: interphase and the mitotic phase. During interphase, the cell grows, performs its basic metabolic functions, copies its DNA, and prepares for mitotic cell division. Then, during mitosis and cytokinesis, the cell divides its nuclear and cytoplasmic materials, respectively. This generates two daughter cells that are identical to the original...
242.7K
The Cell Cycle Control System
5.6K
The cell cycle regulation directs how a cell proceeds from one phase to the next and begins mitosis. The cell cycle control system includes intracellular regulatory molecules and external triggers. They provide "stop" or "advance" signals and operate at specific cell cycle stages termed checkpoints to ensure that a particular process is completed before the cell advances to the next phase.
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and...
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and...
5.6K
The Cell Cycle Control System
14.3K
The cell cycle is an organized set of events that leads the cell to divide into two daughter cells, each containing chromosomes identical to the parent cell. It is the cell cycle that leads to the formation of an entire organism from a single-cell zygote. Besides, cell division also functions in the renewal or repair of tissues in adult multicellular eukaryotes. For example, in the bone marrow, the stem cells divide to form new blood cells. Although essential for several functions, cell...
14.3K
Mitogens and the Cell Cycle
7.9K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
7.9K
DNA Damage Can Stall the Cell Cycle
3.1K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
3.1K


