Name: intranasal delivery of therapeutic stem cells to glioblastoma in a mouse model
Uploaded: 2017-06-04T15:00:00
Description: Watch this Scientific Journal Video about Intranasal Delivery of Therapeutic Stem Cells to Glioblastoma in a Mouse Model at JoVE.com

This work was supported by NIH R01NS087990 (MSL, IVB).

All animal procedures must be approved by the Institutional Animal Care and Use Committee (IACUC) or equivalent. If there is any uncertainty regarding the specific procedures described herein, do not proceed. Clarify with the institution&#39;s IACUC and a designated veterinary staff member.
1. Ensuring Sterility of Cultured Cells and Follow Principles of Aseptic Techniques
<ol>
	<li>Follow the standard good laboratory practice in all cell culture procedures and IACUC requirements for cell te...

<ol>
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Although the intranasal route of drug delivery has been widely explored for small molecules, nanomedicines, and protein compounds alike18, the application of therapeutic stem cells for intranasal brain tumor targeting is very new in the spectrum of brain tumor therapeutics under development2,3,4. There are intrinsic complexities involved regarding the behaviors of stem cells in the nasal cavity, and molec...

Low toxicity, low immunogenicity, and intrinsic brain tumor tropism of human stem cells are attractive traits for the delivery of therapeutics vehicles1. Novel stem cell-based therapeutics for malignant brain tumors are promising innovations developed in recent years, and the intranasal adaptation of this therapeutic strategy represents a leap towards clinical translation, in that non-invasive and repeated administration might dramatically reduce the barrier for patient applications and may be adaptable for out-patient services without general anesthesia or lengthy in-patient service associated with invasive surgical procedures1,2,3,4.
We and others have pioneered the intranasal route of stem cell delivery to brain tumors and have laid the ground work for some of the basic principles of translational research using mouse xenograft models2,3,4, as well as investigated the migration of stem cells in vivo via magnetic resonance imaging (MRI) reagent carriers2. Through these pilot explorations, we have accumulated substantial experience and gained insight on how to best construct a robust pre-clinical evaluation strategy using well-established patient-derived xenograft (PDX) mouse models of malignant glioma, while maintaining the investigative resolution to examine the nuanced mechanistic details of the sophisticated biological phenomena of the intranasal brain entry of therapeutic stem cells delivered to the nasal cavity. Here, we describe the principles of a standardized operating protocol to demonstrate the current state of experimental investigations using a well-established human neural stem cell line HB1.F3.CD5,6,7,8, which is readily modifiable to adapt to specific tumor models or strategies using human stem cells as therapeutic carriers.

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			<td height="21" style="height:21px;width:236px;">Stereotaxic frame</td>
			<td style="width:221px;">Kopf Instruments</td>
			<td style="width:119px;">Model 900</td>
			<td style="width:199px;"></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Hypoxic Cell Culture Incubator</td>
			<td style="width:221px;">ThermoFisher Scientific</td>
			<td style="width:119px;">VIOS 160i</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Cell culture supplies (Plastics)</td>
			<td style="width:221px;">ThermoFisher Scientific</td>
			<td style="width:119px;">Varies</td>
			<td>Replaceable with any source</td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:236px;">Legend Micro 21R Refrigerated Microcentrifuge</td>
			<td style="width:221px;">ThermoFisher Scientific</td>
			<td style="width:119px;">75002490</td>
			<td>Replaceable with any source</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Bench centrifuge Sorvall ST16R&#160;</td>
			<td style="width:221px;">ThermoFisher Scientific</td>
			<td style="width:119px;">75004240</td>
			<td>Replaceable with any source</td>
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		<tr height="22">
			<td height="22" style="height:23px;width:236px;">Micro syringe 702N 25&#181;l (22S/2&#34;/2)</td>
			<td style="width:221px;">Hamilton Company</td>
			<td style="width:119px;">80400</td>
			<td>Flat tip</td>
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			<td height="43" style="height:43px;width:236px;">Sample Tray for Irradiator</td>
			<td style="width:221px;">Best Theratronics</td>
			<td style="width:119px;">A13826</td>
			<td style="width:199px;">To set up mice protection with lead shield</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Leica DMi8 Microscope</td>
			<td style="width:221px;">Leica Microsystem</td>
			<td style="width:119px;"></td>
			<td>Custom setup</td>
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			<td height="21" style="height:21px;width:236px;">Leica CM1860 UV cryostat</td>
			<td style="width:221px;">Leica Microsystem</td>
			<td style="width:119px;"></td>
			<td>Custom setup</td>
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		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Exel International Insulin Syringe</td>
			<td style="width:221px;">ThermoFisher Scientific</td>
			<td style="width:119px;">14-841-31</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Corning Phosphate Buffer Saline</td>
			<td style="width:221px;">Corning Cellgro/ThermoFisher</td>
			<td style="width:119px;">21-031-CV</td>
			<td></td>
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			<td height="20" style="height:21px;width:236px;">Dulbecco&#39;s Modified Eagle Medium&#160;</td>
			<td style="width:221px;">Corning Cellgro/ThermoFisher</td>
			<td style="width:119px;">11965-084</td>
			<td></td>
		</tr>
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			<td height="21" style="height:21px;width:236px;">Trypsin 0.05%</td>
			<td style="width:221px;">Corning Cellgro/ThermoFisher</td>
			<td style="width:119px;">25300054</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:236px;">Hyaluronidase from bovine testes</td>
			<td style="width:221px;">MilliporeSigma</td>
			<td style="width:119px;">H3506</td>
			<td></td>
		</tr>
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intranasal delivery of therapeutic stem cells to glioblastoma in a mouse model

The intrinsic tropism towards brain malignancies renders stem cells as promising carriers of therapeutic agents against malignant tumors. The delivery of therapeutic stem cells via the intranasal route is a recently discovered alternative strategy, with strong potential for clinical translation, due to its non-invasive nature compared to intracranial implantation or delivery via systemic routes. The lack of blood brain barrier further strengthens the therapeutic potential of stem cells undergoing intranasal brain entry. This article summarizes the essential techniques utilized in our studies and outlines the basic principles of intranasal strategy for stem cell delivery using a mouse model of intracranial glioma xenografts. We demonstrate the optimized procedures that generate consistent and reproducible results with specific predetermined experimental parameters and offer guidelines for streamlined work flow that ensure efficient execution and reliable experimental outcome. The article is designed to serve as a baseline for further experimental customization based on hypothesis, stem cell types, or tumor specifics.

Both hypoxic pre-treatment (Figure 4A)4 and CXCR4 overexpression (Figures 4B and 4C)4 significantly upregulate the cell membrane presence of CXCR4 receptors as demonstrated by flow cytometry. The tumor tropism demonstrated by NSCs (blue arrows), is shown in the tumor tissue histology (red circle). The presence of MPIO-labeled (Figure 4D) stem cells ...

Watch this Scientific Journal Video about Intranasal Delivery of Therapeutic Stem Cells to Glioblastoma in a Mouse Model at JoVE.com

Intranasal Delivery of Therapeutic Stem Cells to Glioblastoma in a Mouse Model

Stem cells are promising therapeutic carriers to treat brain tumors due to their intrinsic tumor tropism. Non-invasive intranasal stem cell delivery bypasses the blood brain barrier and demonstrates strong potential for clinical translation. This article summarizes the basic principles of intranasal stem cell delivery in a mouse model of glioma.

The intrinsic tropism towards brain malignancies renders stem cells as promising carriers of therapeutic agents against malignant tumors. The delivery of ...

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