Development of photodynamic therapy targeted at glioma stem cells
Development of photodynamic therapy targeted at glioma stem cells
批准号:
23592147
负责人:
KUROIWA Toshihiko
金额:
$3.24万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2013
中文摘要
肿瘤干细胞是多种癌症治疗产生耐药性的主要原因。在肿瘤干细胞中高表达的ABCG2转运体也将过量的卟啉转运到细胞外空间。因此,控制ABCG2可能会增强5-ALA PDT的作用,并可能控制癌症干细胞。在本研究中,我们发现超过一半的卟啉通过5-ALA给药转运到细胞外空间,抑制ABCG2转运体增加了细胞内卟啉,增强了5-ALA的PDT效应。此外,A172胶质瘤干细胞具有5-ALA PDT敏感性,而非耐药性。这些结果表明5-ALA PDT和/或联合ABCG2抑制剂可能有助于控制癌症干细胞。
英文摘要
Cancer stem cells is a main cause of resistance of various cancer therapies. ABCG2 transporter, which is highly express in cancer stem cells, also transport excessive porphyrin to extra-cellular space. Therefore, controlling ABCG2 may enhance the effect of 5-ALA PDT and may control cancer stem cells.In this study, we found that more than a half of porphyrin by produced by 5-ALA administration transported to extracellular space, and inhibition of ABCG2 transporter increased intra-cellular porphyrin and enhanced 5-ALA PDT effect. Furthermore, A172 glioma stem cell had a nature of 5-ALA PDT sensitivity, rather than resistance. These results indicated that 5-ALA PDT and/or combined with ABCG2 inhibitor may useful for controlling the cancer stem cells.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Quantitative spectral analysis of 5-ALA derived porphyrin fluorescence and auto-fluorescence for improving PDD
-
批准号:20591729
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.83万
-
财政年份:2008
-
负责人:KUROIWA Toshihiko
-
依托单位:
Regeneration of neurons and vessels using bone marrow cells and gene delivery
-
批准号:17300224
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$3.84万
-
财政年份:2005
-
负责人:KUROIWA Toshihiko
-
依托单位:
Pathophysiology of the treatment of transient cerebral ischemia
-
批准号:15500230
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.11万
-
财政年份:2003
-
负责人:KUROIWA Toshihiko
-
依托单位:
Intra-operative identification of malignant glioma using real-time fluorescence spectroscopic analysis and double staining method
-
批准号:14571345
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$1.6万
-
财政年份:2002
-
负责人:KUROIWA Toshihiko
-
依托单位:
Tissue injury and hemodynamics in experimental embolic cerebral ischemia
-
批准号:13680816
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.11万
-
财政年份:2001
-
负责人:KUROIWA Toshihiko
-
依托单位:
Study on the pathogenesis of cortical delayd neuronal death after transient cerebral ischemia
-
批准号:05454657
-
项目类别:Grant-in-Aid for General Scientific Research (B)
-
资助金额:$4.35万
-
财政年份:1993
-
负责人:KUROIWA Toshihiko
-
依托单位:
海外基金