ArticleTissue engineering and regenerative medicine2025
Intranasal Administration of Human Neural Crest-Derived Nasal Turbinate Stem Cells Attenuates Microglia Activity in Mild Head Trauma Models.
Article in Tissue engineering and regenerative medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundMild head trauma often leads to long-term cognitive and neurological deficits. PLX3397, an inhibitor of colony-stimulating factor 1 receptor (CSF1R), offers promise as a therapeutic agent for traumatic brain injury (TBI) by targeting neuro-inflammation. Stem cell-based approaches are widely studied for neurological disorders. The objective of this study was to investigate therapeutic effect of intranasal administration of human neural crest-derived nasal turbinate stem cells (hNTSCs) on mild TBI in comparison with that of PLX3397.
methodsWe developed a model of mice with repetitive and mild TBI following a weight-drop once a day for 5 days. PLX3397 (50 mg/kg, p. o.) was administered for 21 days. Intranasal administration of hNTSCs (1 × 10
resultsIba1 + and GFAP + cells were increased in the cortex and hippocampus of TBI models. Iba1 + cells and GFAP + cells were remarkably decreased in PLX3397 or hNTSC-treated TBI models. Administration of PLX3397 attenuated the decrease in neurobehavioral activity. Similar effects were observed in a TBI model with a single dose of hNTSC.
conclusionIntranasal administration of hNTSCs had a microglia-depleting effect. Administered hNTSCs were found around the cortex and hippocampus of TBI brains. This investigation may provide a promising path for therapeutic initiatives for repetitive and mild TBI.
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