Neuro-regeneration therapy using human Muse cells is highly effective in a mouse intracerebral hemorrhage model.
A novel type of non-tumorigenic pluripotent stem cell, the Muse cell (multi-lineage, differentiating stress enduring cell), resides in the connective tissue and in cultured mesenchymal stem cells (MSCs) and is reported to differentiate into multiple cell types according to the microenvironment to repair tissue damage. We examined the efficiency of Muse cells in a mouse intracerebral hemorrhage (ICH) model. Seventy μl of cardiac blood was stereotactically injected into the left putamen of immunodeficient mice. Five days later, 2 × 105of human bone marrow MSC-derived Muse cells (n = 6) or cells other than Muse cells in MSCs (non-Muse, n = 6) or the same volume of PBS (n = 11) was injected into the ICH cavity. Water maze and motor function tests were implemented for 68 days, and immunohistochemistry for NeuN, MAP2 and GFAP was done. The Muse group showed impressive recovery: Recovery was seen in the water maze after day 19, and motor functions after 5 days was compared with the other two groups, with a significant statistical difference (p < 0.05). The survival rate of the engrafted cells in the Muse group was significantly higher than in the non-Muse group (p < 0.05) at day 69, and those cells showed positivity for NeuN (~57%) and MAP-2 (~41.6%). Muse cells could remain in the ICH brain, differentiate into neural-lineage cells and restore functions without inducing them into neuronal cells by gene introduction and cytokine treatment prior to transplantation. A simple collection of Muse cells and their supply to the brain in naïve state facilitates regenerative therapy in ICH.
Department of Neurosurgery, Hirosaki University School of Medicine, 5-Zaihuchou, Hirosaki, Aomori, 036-8562, Japan. shimab@hirosaki-u.ac.jp.
Norihito
0000-0003-3003-9160
N
Shimamura
Department of Neurosurgery, Hirosaki University School of Medicine, 5-Zaihuchou, Hirosaki, Aomori, 036-8562, Japan.
Kiyohide
K
Kakuta
Department of Neurosurgery, Hirosaki University School of Medicine, 5-Zaihuchou, Hirosaki, Aomori, 036-8562, Japan.
Liang
L
Wang
Department of Neurosurgery, Hirosaki University School of Medicine, 5-Zaihuchou, Hirosaki, Aomori, 036-8562, Japan.
Masato
M
Naraoka
Department of Stem Cell Biology and Histology, Tohoku University School of Medicine, Sendai, Japan.
Hiroki
H
Uchida
Department of Stem Cell Biology and Histology, Tohoku University School of Medicine, Sendai, Japan.
Shohei
S
Wakao
Department of Stem Cell Biology and Histology, Tohoku University School of Medicine, Sendai, Japan.
Mari
M
Dezawa
Department of Neurosurgery, Hirosaki University School of Medicine, 5-Zaihuchou, Hirosaki, Aomori, 036-8562, Japan.
Hiroki
H
Ohkuma
D000704:Analysis of Variance; D000818:Animals; D002460:Cell Line; D064987:Cell- and Tissue-Based Therapy / Q000379:methods*; D002543:Cerebral Hemorrhage / Q000150:complications / Q000601:surgery*; D004195:Disease Models, Animal; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D018782:Maze Learning / Q000502:physiology; D045164:Mesenchymal Stem Cell Transplantation / Q000379:methods*; D051379:Mice; D016513:Mice, SCID; D009410:Nerve Degeneration / Q000209:etiology / Q000601:surgery*; D009419:Nerve Tissue Proteins / Q000235:genetics / Q000378:metabolism; D009460:Neurologic Examination; D044968:Regenerative Medicine / Q000379:methods; D013997:Time Factors
D009419:Nerve Tissue Proteins; D049452:Green Fluorescent Proteins
Cerebral hemorrhage; Mesenchymal stem cells; Neuronal differentiation; Neuronal regeneration; Pluripotent stem cells