In vivo magnetic resonance imaging tracks adult neural progenitor cell targeting of brain tumor.
Using magnetic resonance imaging (MRI), we described a method for noninvasively tracking grafted neural progenitor cells and bone marrow stromal cells (MSCs) in brain tumor of the rat. Neural progenitor cells and MSCs were labeled with lipophilic dye-coated superparamagnetic particles. The labeled neural progenitor cells and MSCs were transplanted to rats via the cisterna magna and a tail vein, respectively, 1 week after 9L-gliosarcoma cell implantation. Three-dimensional (3D) gradient echo and contrast agent images revealed dynamic migration of adult neural progenitor cells and MSCs detected by loss of MRI signals towards tumor mass and infiltrated tumor cells. Prussian blue staining and fluorescent microscope analysis showed that grafted cells targeted tumor cells and areas with grafted cells corresponded to areas with loss of MRI signals. These results demonstrate that the MRI technique provides a sensitive method for in vivo assessment of grafted cells targeting tumor mass and infiltrated tumor cells and that adult neural progenitor cells and MSCs can target tumor aggregates in the brain.
Department of Neurology, Henry Ford Health Sciences Center, Detroit, MI 48202, USA.
Zhenggang
Z
Zhang
Quan
Q
Jiang
Feng
F
Jiang
Gaungliang
G
Ding
Ruilan
R
Zhang
Lei
L
Wang
Li
L
Zhang
Adam M
AM
Robin
Mark
M
Katakowski
Michael
M
Chopp
D000818:Animals; D001854:Bone Marrow Cells / Q000473:pathology*; D016026:Bone Marrow Transplantation; D001932:Brain Neoplasms / Q000473:pathology*; D002449:Cell Aggregation / Q000502:physiology; D018316:Gliosarcoma / Q000473:pathology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008279:Magnetic Resonance Imaging; D008297:Male; D009368:Neoplasm Transplantation; D009389:Neovascularization, Pathologic / Q000473:pathology; D009417:Nerve Tissue / Q000637:transplantation*; D051381:Rats; D011916:Rats, Inbred F344; D013234:Stem Cells / Q000473:pathology*; D017154:Stromal Cells / Q000473:pathology / Q000637:transplantation*; D014407:Tumor Cells, Cultured / Q000502:physiology*; D014410:Tumor Stem Cell Assay