メタル・スーパモレキュラー・コンプレックスは,がん幹細胞を活体内でエナチオ選択的に根絶する
Hongshuang Qin1, Chuanqi Zhao1, Yuhuan Sun1,2
1Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, China.
Journal of the American Chemical Society
|October 14, 2017
まとめ
新種のキラルメタロヘリスは,テロメアを破壊することで,がん幹細胞 (CSC) を選択的に標的にし,根絶します. [Ni2L3]4+-Pという 酵素選択化合物は 薬剤耐性乳がんとその再発に対する 有望な戦略です
科学分野:
- 薬剤化学
- 癌 生物学
- ナノテクノロジー
背景:
- がん幹細胞 (CSC) は腫瘍の再発,転移,薬剤耐性を引き起こすが,標的治療法がない.
- テロメアG四重複DNAはテロメラーゼ活性と染色体安定性にとって不可欠であり,潜在的な治療標的となる.
- チラルの分子認識は,選択的な薬剤設計戦略の開発に不可欠です.
研究 の 目的:
- クイラルメタロヘリクスを用いて特定のCSC標的化剤を開発する.
- 乳房のCSCに対するキラル金属ヘリケスのエナンチオセレクティブ効果を調査する.
- 標的となる物質がCSCを根絶するメカニズムを明らかにする.
主な方法:
- 亜鉛指のようなキラルメタロヘリシス,特に[Ni2L3]4+エナンチオメアの合成と特徴付け.
- 乳がん細胞の細胞増殖抑制のインビトロ評価と,大容量がん細胞の評価.
- マウスモデルでの腫瘍増殖抑制を評価するインビボ研究.
- CSCの特性,アポトーシスの誘導,hTERTの核転移,そしてテロメアの損傷の分析.
主要な成果:
- [Ni2L3]4+-Pエナンティオメアは,その同位体[Ni2L3]4+-Mとは異なり,乳房のCSCの成長を選択的に低下させた.
- [Ni2L3]4+-PはCSCの特性を抑制し,テロメアの開封とDNA損傷を通じてアポトーシスを誘導し,hTERT核転位を抑制しました.
- [Ni2L3]4+- Pは体内において,乳房中枢細胞腫瘍形成を著しく低下させ,強力なエナチオ選択性を示した.
結論:
- チラル金属ヘリル,特に[Ni2L3]4+-Pエナントイオメルは,乳房のCSCを根絶する上で重要なエナントイオ選択性を示す.
- この研究は,テロメア関連メカニズムを通じて,キラル・コンプレックスが効果的にCSCを標的にし,排除する最初の報告です.
- この発見は 薬剤耐性がんの治療に 新しい治療法をもたらします 幹細胞の集団をターゲットにします
関連する概念動画
Metastasis
5.4K
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...
5.4K
Cancer Stem Cells and Tumor Maintenance
4.3K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
4.3K
Targeted Cancer Therapies
7.0K
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...
There are several types of targeted therapies against...
7.0K


