東北大学 · 医学
Kuniyasu Niizuma教授の研究室は、脳卒中や脳虚血に伴う神経細胞死の分子メカニズムに焦点を当てており、特にミトコンドリア由来の酸化的ストレスやp53シグナル伝達経路が神経変性に与える影響を解明しています。特に、PUMAやPIDDosomeといったシグナル分子がCA1椎体細胞の遅発性死を引き起こすメカニズムを解析し、神経保護療法の標的を特定することを目的としています。また、Muse細幹細胞を用いた再生医療戦略の開発も進め、急性期を過ぎた脳卒中患者への細胞移植療法の可能性を検討しています。
Figures are computed from collected data and may differ slightly.
Mitochondria are the powerhouse of the cell. Their primary physiological function is to generate adenosine triphosphate through oxidative phosphorylation via the electron transport chain. Reactive oxygen species generated from mitochondria have been implicated in acute brain injuries such as stroke and neurodegeneration. Recent studies have shown that mitochondrially-formed oxidants are mediators of molecular signaling, which is implicated in the mitochondria-dependent apoptotic pathway that inv
The area with prolonged RRT colocalized with atherosclerotic change on the aneurysm wall. Male sex and maximum RRT were independent risk factors for atherogenesis in intracranial aneurysms.
These results imply a potential role for PUMA in delayed CA1 neuronal death after tGCI and that it could be a molecular target for therapy.
A brief period of global brain ischemia, such as that induced by cardiac arrest or cardiopulmonary bypass surgery, causes cell death in vulnerable hippocampal CA1 pyramidal neurons days after reperfusion. Although numerous factors have been suggested to account for this phenomenon, the mechanisms underlying it are poorly understood. We describe a cell death signal called the PIDDosome, a protein complex of p53-induced protein with a death domain (PIDD), receptor-interacting protein-associated IC
Effective treatments for stroke after the acute phase remain elusive. Muse cells are endogenous, pluripotent, immune-privileged stem cells capable of selectively homing to damaged tissue after intravenous injection and replacing damaged/lost cells via differentiation. This randomized, double-blind, placebo-controlled trial enrolled ischemic stroke patients with modified Rankin Scale (mRS) ≥3. Randomized patients received a single intravenous injection of an allogenic Muse cell-based product, CL2
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