関連する実験動画
Updated: May 12, 2026

11:52
Analysis of Targeted Viral Protein Nanoparticles Delivered to HER2+ Tumors
Published on: June 18, 2013
腫瘍生物学:ヘルセプチンは,抗血管新生カクテルとして作用する
Yotaro Izumi1, Lei Xu, Emmanuelle di Tomaso
1Edwin L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
Nature
|March 22, 2002
まとめ
標的療法であるヘルセプチンは,複数の血管新生因子に影響を与えることで,腫瘍の血管系を正常化し,逆行させます. この単剤アプローチは,HER2陽性乳腺腫瘍に対する結合抗血管新生治療の代替案を提供することがあります.
科学分野:
- 腫瘍学 腫瘍学
- 分子生物学は分子生物学である.
- 免疫学 免疫学とは
背景:
- 悪性腫瘍は,血管新生を通して体の血液供給を乗っ取ります.
- 抗血管新生療法に対する腫瘍耐性は,代替的経路を経由して発生することがあります.
- 複数の血管新生因子を同時に標的にすることで,抵抗を克服することができます.
研究 の 目的:
- HER2過剰発現性乳腺腫瘍におけるヘルセプチンの抗血管新生効果を調査する.
- ヘルセプチンがプロ血管新生因子とアンチ血管新生因子を調節するかどうかを判断する.
- 併用抗血管新生療法に対する単剤代替薬としてハーセプチンを評価する.
主な方法:
- HER2を過剰に発現するマウスの実験的なヒト乳腺腫瘍モデルを利用した.
- HER2を標的にするモノクローナル抗体であるヘルセチンを投与した.
- 腫瘍血管の正常化と回帰を分析した.
- 血管新生促進因子と血管新生抑制因子の評価された調節.
主要な成果:
- ヘルセプチンは,腫瘍血管の正常化と回帰を誘導した.
- ヘルセプチン治療は,様々なプロおよびアンチ血管新生因子の効果を調節した.
- この薬は,複数の経路を標的とした単一の薬として有効性を実証しました.
結論:
- ヘルセプチンは,マルチターゲットの抗血管新生活性を示しています.
- このメカニズムは,ハーセプチンのスタンドアロン療法としての可能性を示唆しています.
- ヘルセプチンは,抗血管新生治療の組み合わせと比較して,簡素化されたアプローチを提供します.
さらに関連する動画
関連する概念動画
Mitogens and the Cell Cycle
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...
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...
Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
Combination Therapies and Personalized Medicine
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...
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...
Targeted Cancer Therapies
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
There are several types of targeted therapies against specific...
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.

