Intranasal Mesenchymal Stem Cell Delivery in a Mouse Model of Traumatic Brain Injury

0 weergaven2:39 min • June 17th, 2025

Loading...
$$\rightleftharpoonup{xx}$$ $$\longleftharp{xx}$$, $$\longrightharp{xx}$$,

Begin with an anesthetized mouse with a traumatic brain injury.

At the injury site, axonal demyelination and neuronal damage trigger the release of pro-inflammatory cytokines.

Secure the mouse and intranasally deliver a proteolytic enzyme.

Next, position the mouse face up for a short duration and repeat the enzyme delivery.

The proteolytic enzymes degrade the extracellular matrix in the nasal epithelia and enhance the cell permeability.

Then, intranasally administer the labeled mesenchymal stem cell, or MSC solution.

Hold the mouse’s head upright for a while to prevent premature drainage and allow MSC absorption into the nasal tissue.

Repeat the MSC delivery process.

Allow the mouse to recover.

The chemotactic signals of pro-inflammatory cytokines direct MSCs to migrate from the nasal cavity to the brain injury site.

At the injury site, MSCs secrete neurotrophic factors that promote remyelination. This highlights MSCs’ neurotherapeutic potential for neuronal repair.

For cell delivery, after confirming a lack of response to toe pinch, scruff the mouse while immobilizing the skull. Place the tip of a pipette containing 4 units of hyaluronidase per microliter of PBS near the nare of the mouse at a 45-degree angle and administer 3 microliters of hyaluronidase suspension into each nostril. Place the animal face up on a clean pad for five minutes before repeating the treatment four times for a total of 100 units of hyaluronidase treatment.

After the last treatment, place the mouse back onto the pad for 30 minutes before restraining the mouse, as just demonstrated. With the head immobilized, administer 3 microliters of the mesenchymal stem cell suspension into each nostril over a period of three seconds per solution delivery, holding the mouse in position for 30 seconds until the sample drops have completely disappeared. After two minutes, repeat the delivery up to three times until the entire volume of mesenchymal stem cell has been delivered. Then return the mouse to its cage with monitoring until full recumbency.

09:57

Intranasale Levering van Therapeutische Stamcellen aan Glioblastoma in een Muis Model

Gerelateerde video's

0 Bekeken

09:29

Gecontroleerde corticale impact model van muis hersenletsel met therapeutische transplantatie van menselijk geïnduceerde pluripotente stamcel-afgeleide neurale cellen

Gerelateerde video's

0 Bekeken

05:35

Transplantatie van door de mens geïnduceerde pluripotente stamcel-afgeleide microglia in immunocompetente muizenhersenen via niet-invasieve transnasale route

Gerelateerde video's

0 Bekeken

04:12

Stereotaxic Transplantation of Neural Cell Suspension into a Mouse with Traumatic Brain Injury

Gerelateerde video's

0 Bekeken

03:33

Intranasal Delivery of Therapeutic Neural Stem Cells (NSCs) in Murine Model: A Procedure for Tumor-targeted Delivery of Oncolytic Virus Loaded NSCs into Brain Tumor Bearing Mouse Model

Gerelateerde video's

0 Bekeken

02:14

Delivery of a Traumatic Brain Injury to a Mouse Brain

Gerelateerde video's

0 Bekeken

03:58

Generating a Traumatic Brain Injury Mouse Model Using an Impactor Probe

Gerelateerde video's

0 Bekeken

03:18

Transnasal Transplantation of Induced Pluripotent Stem Cell-Derived Human Microglial Cells into the Mouse Brain

Gerelateerde video's

0 Bekeken

10:03

Het volgen van superparamagnetische ijzer oxide-gelabelde mesenchymale stamcellen met behulp van MRI na intranasale levering in een traumatisch hersenletsel Murine model

Gerelateerde video's

0 Bekeken

08:25

Intravitale beeldvorming van fluorescerende eiwitexpressie bij muizen met een gesloten schedel traumatisch hersenletsel en schedelvenster met behulp van een microscoop met twee fotonen

Gerelateerde video's

0 Bekeken

Laatst bijgewerkt: 15 augustus 2026