Transplantation of hematopoietic stem cells: intra-arterial versus intravenous administration impacts stroke outcomes in a murine model

• Published in: Translational research : the journal of laboratory and clinical medicine Vol. 176; pp. 69 - 80
• Main Authors: Kasahara, Yukiko, PhD, Yamahara, Kenichi, MD, Soma, Toshihiro, MD, Stern, David M., MD, Nakagomi, Takayuki, MD, Matsuyama, Tomohiro, MD, Taguchi, Akihiko, MD
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2016
• Subjects: AC133 Antigen - metabolism; Administration, Intravenous; Animals; Atrophy; Behavior, Animal; Bone Marrow Cells - cytology; Brain - pathology; Brain - physiopathology; Cell Count; Disease Models, Animal; Hematopoietic Stem Cell Transplantation; Hematopoietic Stem Cells - cytology; Humans; Injections, Intra-Arterial; Internal Medicine; Male; Mice, SCID; Microvessels - pathology; Stroke - pathology; Stroke - therapy; Treatment Outcome; CCA; Murine Model; CBF; bone marrow derived-mononuclear cells; Cell Transplantation; MCA; granulocyte colony-stimulating factor; BM-MNCs; G-CSF; middle cerebral artery; common carotid artery; Cerebral Infarction; analysis of variance; ANOVA; UCB; Hematopoietic Stem Cell; cerebral blood flow; umbilical cord blood; Bone Marrow Mononuclear Cell
• ISSN: 1931-5244; 1878-1810
• DOI: 10.1016/j.trsl.2016.04.003

Abstract Based on results of hematopoietic stem cell transplantation in animal models of stroke, clinical trials with hematopoietic stem cells administered intra-arterially or intravenously have been initiated in patients. Though intra-arterial injection is expected to deliver transplanted cells more directly to the ischemic tissue, the optimal route for enhancing clinical outcomes has not been identified in the setting of stroke. In this study, we compared the therapeutic potential of intra-arterial versus intravenous injection of bone marrow derived-mononuclear cells (BM-MNCs) and CD133-positive (CD133+ ) cells in a murine stroke model. We have found that intra-arterial injection of BM-MNCs exaggerates inflammation with accompanying loss of microvascular structures in post-stroke brain and no improvement in cortical function. In contrast, intravenous injection of BM-MNCs did not similarly enhance inflammation and improved cortical function. Our results indicate that the optimal route of cell transplantation can vary with different cell populations and highlight possible issues that might arise with intra-arterial cell administration for acute ischemic cerebrovascular disease.