サイトシンデミナーゼ-TRAIL 発現するヒトアディポス幹細胞は,カスタレーションに抵抗性のある前立腺がんの腫瘍増殖を抑制し,毒性が低いマウスを産む
Jae Heon Kim1, Hyun Young Lee1, In Seok Hong2
1Department of Urology, Soonchunhyang University Seoul Hospital, Soonchunhyang University Medical College, Seoul 04401, Republic of Korea.
International journal of molecular sciences
|February 13, 2026
まとめ
自殺遺伝子を発現する人工幹細胞と TRAILは,カストレーション耐性前立腺がんの成長を効果的に標的にし,減少させます. この併用療法では,進行した前立腺がんを最小限の毒性で治療する見通しを示しています.
科学分野:
- 腫瘍学 腫瘍学
- 幹細胞治療法 幹細胞治療法
- 遺伝子療法の遺伝子治療法
背景:
- カストレーション耐性前立腺がん (CRPC) は,依然として重要な臨床的課題です.
- 腫瘍死滅因子関連のアポトーシス誘発リガンド (TRAIL) は,選択的にがん細胞のアポトーシスを誘発する.
- 人間の脂肪系由来幹細胞 (ADSCs) は,腫瘍を誘導する能力を持っています.
研究 の 目的:
- CRPC治療のために,サイトシンデアミナーゼ (CD) と溶性トライル (sTRAIL) を発現するように設計されたADSCの有効性を評価する.
- 臨床前モデルのエンジニアリングされたADSCsと5-フッ素サイトシン (5-FC) の組み合わせられた治療効果を評価する.
主な方法:
- レンチウイルスベクトルを用いたCDとsTRAIL (ADSC.CD.sTRAIL) を表現するために,ヒトの不死のADSC (hTERT-ADSC) を設計した.
- RT-PCRによる評価された化学誘導体リガンド/受容体発現.
- 5-FC治療で評価された in vitro 細胞毒性およびアポトーシス誘導.
- 皮下CRPCマウスモデルを用いたin vivo試験を実施しました.
主要な成果:
- エンジニアリングされたADSCは,前立腺がん細胞への移行が強化されたことを実証しました.
- 5-FC治療は,がん細胞の生存能力を著しく低下させ,アポトーシスをインビトロで増加させた.
- In vivo試験では,対照群と比較して,治療されたマウスの腫瘍量が有意に減少したことが示されました.
- 治療に関連した有意な毒性は観察されなかった.
結論:
- CDとstRAILで設計されたADSCは,5-FCと組み合わせて,CRPC腫瘍の成長を抑制する強力な戦略を表しています.
- この標的型遺伝子細胞療法アプローチは,CRPCに対する重要な治療の可能性を示しています.
- 併用療法はよく耐受され,臨床適用可能性を示唆しています.
関連する概念動画
Cancer Stem Cells and Tumor Maintenance
6.1K
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...
6.1K
Treatment Resistant Cancers
3.8K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.8K
Cell Specific Gene Expression
16.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
16.6K
Distinctive Features of Adult Stem Cells vs Cancer Stem Cells
4.5K
A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
4.5K
Embryonic Stem Cells
32.7K
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
32.7K
Feedback Inhibition
57.3K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
57.3K


