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Research article summary (published 30 Aug 2009):

Dual-targeted antitumor effects against brainstem glioma by intravenous delivery of tumor necrosis factor-related, apoptosis-inducing, ligand-engineered human mesenchymal stem cells.

Full Abstract

OBJECTIVE: We sought to explore the dual-targeted antitumor effects of membrane-spanned, tumor necrosis factor-related, apoptosis-inducing ligand (TRAIL)-engineered human mesenchymal stem cells (hMSCs) against brainstem gliomas. METHODS: The migration capacity of hMSCs toward gliomas was studied by the Transwell system in vitro and by intravenous injection of hMSCs in glioma-bearing mice in vivo. MSCs were engineered with native full-length human TRAIL (hTRAIL) by a recombinant adeno-associated virus (rAAV) vector (rAAV-hTRAIL). The targeted antiglioma effect was analyzed by coculture of hTRAIL-engineered MSCs with glioma in vitro and by systematic delivery of hTRAIL-engineered MSCs to established human brainstem glioma xenografts. RESULTS: We demonstrated systematically that transplanted MSCs migrated to a brainstem glioma with a high specificity. MSCs penetrated the vessels surrounding the tumor, then streamed in a chain pattern toward the glioma, eventually surrounding the tumor. Membrane-spanned, TRAIL-engineered MSCs not only expressed full-length TRAIL in MSC surface, but secreted some soluble TRAIL in medium. After being infected with rAAV-hTRAIL, hMSCs showed no increase in apoptosis. After coculture of hTRAIL-engineered MSCs and U87MG cells, the apoptosis of U87MG cells significantly increased more than soluble TRAIL-treated U87MG cells. Systematic delivery of hTRAIL-engineered MSCs to established human brainstem glioma xenografts resulted in the potent induction of apoptosis in gliomas, but not in normal brain and prolonged survival to 38.0 +/- 10.46 days compared with phosphate-buffered saline (16.0 +/- 0.66 days), soluble TRAIL (19.0 +/- 1.65 days), and hMSC-LacZ (14.0 +/- 0.59 days) treated groups. CONCLUSION: Systematically transplanted MSCs migrated to gliomas with a high specificity. Systematic delivery of MSC-hTRAIL can prolong the survival of brainstem glioma-bearing mice, presumably through a dual-targeted effect of membrane-spanned, TRAIL-engineered MSCs in the tumor microenvironment. MSCs may be an effective vehicle for the targeted delivery of therapeutic agents to brainstem gliomas.

 

Author information

Author/s: Yang, Bojie (B); Wu, Xing (X); Mao, Ying (Y); Bao, Weiming (W); Gao, Liang (L); Zhou, Ping (P); Xie, Rong (R); Zhou, Liangfu (L); Zhu, Jianhong (J);

Affiliation: Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Neurosurgery (Neurosurgery), published in United States. (Language: eng)

Reference: 2009-Sep; vol 65 (issue 3) : pp 610-24; discussion 624

Dates: Created 2009/08/18; Completed 2009/11/04;

PMID: 19687708, status: MEDLINE (last retrieval date: 11/4/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Associated Chemicals: RNA, Small Interfering (0) ; Receptors, TNF-Related Apoptosis-Inducing Ligand (0) ; Receptors, Tumor Necrosis Factor (0) ; TNF-Related Apoptosis-Inducing Ligand (0) ; TNFRSF10A protein, human (0) ; Tumor Necrosis Factor-alpha (0)

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