Name: electrically conductive scaffold to modulate and deliver stem cells
Uploaded: 2018-04-13T13:30:00
Description: Watch this Scientific Journal Video about Electrically Conductive Scaffold to Modulate and Deliver Stem Cells at JoVE.com

Vi takker Dr. Kati Andreasson (Institutt for Nevrologi og nevrologiske vitenskap, Stanford University) for bruk av qRT PCR maskinen. Arbeidet ble støttet av nasjonale institutter for helse tilskudd K08NS098876 (til P.M.G.) og Stanford School of Medicine Dekanus postdoktorstipend (å bo).

Alle stilk cellen og dyr prosedyrer ble godkjent ved Stanford stilk cellen forskning Oversight committee og Stanford University's Administrative Panel på laboratoriet Animal Care (SCRO-616 og APLAC-31909).
1. etsing ITO glass
<ol><li>Forberede indium tinn oksid (ITO)-dekket objektglass ved å plassere en maskering agent over den ledende siden av glasset. Merk: De fleste kommersielle gjennomsiktig bånd kan brukes som en maske.<ol>
<li>Fjern overflødig masken med et blad, forlater bare ?...

<ol>
	<li>Moskowitz, M. A., Lo, E. H., Iadecola, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Science+of+Stroke:+Mechanisms+in+Search+of+Treatments.">The Science of Stroke: Mechanisms in Search of Treatments.</a> Neuron. 67 (2), 181-198 (2010).</li><li>George, P. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrical+Preconditioning+of+Stem+Cells+with+a+Conductive+Polymer+Scaffold+Enhances+Stroke+Recovery.">Electrical Preconditioning of Stem Cells with a Conductive Polymer Scaffold Enhances Stroke Recovery.</a> Biomaterials. 142, 31-40 (2017).</li><li>Steinberg, G. K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clinical+Outcomes+of+Transplanted+Modified+Bone+Marrow-Derived+Mesenchymal+Stem+Cells+in+Stroke:+A+Phase+1/2a+Study.">Clinical Outcomes of Transplanted Modified Bone Marrow-Derived Mesenchymal Stem Cells in Stroke: A Phase 1/2a Study.</a> Stroke. 47 (7), 1817-1824 (2016).</li><li>George, P. M., Steinberg, G. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Novel+Stroke+Therapeutics:+Unraveling+Stroke+Pathophysiology+and+Its+Impact+on+Clinical+Treatments.">Novel Stroke Therapeutics: Unraveling Stroke Pathophysiology and Its Impact on Clinical Treatments.</a> Neuron. 87 (2), 297-309 (2015).</li><li>Schabitz, W. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Intravenous+Brain-Derived+Neurotrophic+Factor+Enhances+Poststroke+Sensorimotor+Recovery+and+Stimulates+Neurogenesis.">Intravenous Brain-Derived Neurotrophic Factor Enhances Poststroke Sensorimotor Recovery and Stimulates Neurogenesis.</a> Stroke. 38 (7), 2165-2172 (2007).</li><li>Liauw, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Thrombospondins+1+and+2+Are+Necessary+For+Synaptic+Plasticity+and+Functional+Recovery+After+Stroke.">Thrombospondins 1 and 2 Are Necessary For Synaptic Plasticity and Functional Recovery After Stroke.</a> J Cereb Blood Flow Metab. 28 (10), 1722-1732 (2008).</li><li>Cantu, D. A., Hematti, P., Kao, W. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+Encapsulating+Biomaterial+Regulates+Mesenchymal+Stromal/Stem+Cell+Differentiation+and+Macrophage+Immunophenotype.">Cell Encapsulating Biomaterial Regulates Mesenchymal Stromal/Stem Cell Differentiation and Macrophage Immunophenotype.</a> Stem Cells Translational Medicine. 1 (10), 740-749 (2012).</li><li>Chaudhuri, O., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hydrogels+with+Tunable+Stress+Relaxation+Regulate+Stem+Cell+Fate+and+Activity.">Hydrogels with Tunable Stress Relaxation Regulate Stem Cell Fate and Activity.</a> Nat Mater. 15 (3), 326-334 (2016).</li><li>Ballios, B. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+Hyaluronan-Based+Injectable+Hydrogel+Improves+the+Survival+and+Integration+of+Stem+Cell+Progeny+following+Transplantation.">A Hyaluronan-Based Injectable Hydrogel Improves the Survival and Integration of Stem Cell Progeny following Transplantation.</a> Stem Cell Reports. 4 (6), 1031-1045 (2015).</li><li>Mothe, A. J., Tam, R. Y., Zahir, T., Tator, C. H., Shoichet, M. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Repair+of+the+Injured+Spinal+Cord+by+Transplantation+of+Neural+Stem+Cells+in+a+hyaluronan-based+hydrogel.">Repair of the Injured Spinal Cord by Transplantation of Neural Stem Cells in a hyaluronan-based hydrogel.</a> Biomaterials. 34 (15), 3775-3783 (2013).</li><li>Saini, M., Singh, Y., Arora, P., Arora, V., Jain, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Implant+Biomaterials:+A+Comprehensive+Review.">Implant Biomaterials: A Comprehensive Review.</a> World J Clin Cases. 3 (1), 52-57 (2015).</li><li>Huang, Y., Li, Y., Chen, J., Zhou, H., Tan, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Electrical+Stimulation+Elicits+Neural+Stem+Cells+Activation:+New+Perspectives+in+CNS+Repair.">Electrical Stimulation Elicits Neural Stem Cells Activation: New Perspectives in CNS Repair.</a> Front Hum Neurosci. 9, (2015).</li><li>Pritchett-Corning, K. R., Mulder, G. B., Luo, Y., White, W. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Principles+of+Rodent+Surgery+for+the+New+Surgeon.">Principles of Rodent Surgery for the New Surgeon.</a> J Vis Exp. (47), (2011).</li><li>Abdelwahid, E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Stem+Cell+Death+and+Survival+in+Heart+Regeneration+and+Repair.">Stem Cell Death and Survival in Heart Regeneration and Repair.</a> Apoptosis. 21 (3), 252-268 (2016).</li><li>Wang, X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Clinical+Status+of+Stem+Cell+Therapy+for+Ischemic+Cardiomyopathy.">The Clinical Status of Stem Cell Therapy for Ischemic Cardiomyopathy.</a> Stem Cells Int. 2015, (2015).</li><li>George, P. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fabrication+and+Biocompatibility+of+Polypyrrole+Implants+Suitable+for+Neural+Prosthetics.">Fabrication and Biocompatibility of Polypyrrole Implants Suitable for Neural Prosthetics.</a> Biomaterials. 26 (17), 3511-3519 (2005).</li><li>Aravamudan, B., Thompson, M., Pabelick, C., Prakash, Y. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Brain-Derived+Neurotrophic+Factor+Induces+Proliferation+of+Human+Airway+Smooth+Muscle+Cells.">Brain-Derived Neurotrophic Factor Induces Proliferation of Human Airway Smooth Muscle Cells.</a> J Cell Mol Med. 16 (4), 812-823 (2012).</li><li>Lopes, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Thrombospondin+2+Regulates+Cell+Proliferation+Induced+by+Rac1+Redox-Dependent+Signaling.">Thrombospondin 2 Regulates Cell Proliferation Induced by Rac1 Redox-Dependent Signaling.</a> Mol Cell Biol. 23 (15), 5401-5408 (2003).</li><li>Ploughman, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Brain-Derived+Neurotrophic+Factor+Contributes+to+Recovery+of+Skilled+Reaching+After+Focal+Ischemia+in+Rats.">Brain-Derived Neurotrophic Factor Contributes to Recovery of Skilled Reaching After Focal Ischemia in Rats.</a> Stroke. 40 (4), 1490-1495 (2009).</li><li>Baker, E. W., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Induced+Pluripotent+Stem+Cell-Derived+Neural+Stem+Cell+Therapy+Enhances+Recovery+in+an+Ischemic+Stroke+Pig+Model.">Induced Pluripotent Stem Cell-Derived Neural Stem Cell Therapy Enhances Recovery in an Ischemic Stroke Pig Model.</a> Sci Rep. 7 (1), 10075 (2017).</li><li>Bacigaluppi, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neural+Stem+Cell+Transplantation+Induces+Stroke+Recovery+by+Upregulating+Glutamate+Transporter+GLT-1+in+Astrocytes.">Neural Stem Cell Transplantation Induces Stroke Recovery by Upregulating Glutamate Transporter GLT-1 in Astrocytes.</a> J Neurosci. 36 (41), 10529-10544 (2016).</li></ol>

Økende bevis har vist løfte om stamceller som roman slag terapi. Dette løftet har resultert i en stor innsats for å fremme stem cell therapeutics til sengen med minst 40 pågående eller fullført kliniske studier. Hjerneslag patologi tilbyr en unik nevrologisk lidelse som gir seg til stilk cellen terapi fordi etter akutt fornærmelse, det er ingen nevrodegenerative prosessen hindrer utvinning. Den eksakte mekanismen for stamcelleforskningen forbedret takts utvinning er fortsatt uklart. Angiogenese, synaptogenesis og...

Slag er den andre ledende dødsårsaken i verden og den femte største dødsårsaken i USA. Til tross for disse høy dødelighet fortsatt behandlinger for slag utvinning er en utfordring med noen levedyktig medisinsk alternativer tilgjengelig1. Det er om 300 kliniske utprøvinger håndtere iskemisk slag, som bare 40 bruke stamceller. Tidligere studier har vist at stilk cellen behandling har en gunstig effekt på hjerneslag reparasjon2,3. Paracrine faktorer som hjerne-avledet nevrotropisk faktor (BDNF) og thrombospondin-1 (THBS-1) fra transplantert menneskelige nevrale stamceller (hNPCs) har vist bedre funksjonelle utvinning gjennom mekanismer knyttet til en økning i synapse formasjon, angiogenese, dendrittiske forgrening og axonal hovedalternativet, samt modulerende immunsystem4,5,6. Men forblir metodene optimal levering av stamceller unnvikende.
Vellykket stamcelleforskningen levering til hjernen er fortsatt en utfordring. Foreløpig har injiserbare hydrogel og polymere stillas systemer blitt introdusert for å levere stamceller. Disse leveringsmåter beskytte stamceller under transplantasjon, samt mot harde post-takts miljø inkludert vertens inflammatorisk respons og hypoxic forhold7,8,9 , 10. imidlertid mest brukte materialene er inaktivt, som begrenser bruken av kontinuerlig modulering (dvs., elektrisk stimulering) av celler11. Elektrisk stimulering er en indikator som påvirker differensiering, ion kanal tetthet og neurite utvekst av stamceller12. Sammenlignet med inert polymerer, kan ledende polymerer bære en gjeldende tillater for elektrisk stimulering og manipulering av stamceller2. Den nøyaktige mekanismen som elektrisk stimulering modulerer nevrotropisk faktor utgivelsen (dvs. BDNF og THBS-1) er imidlertid fortsatt ikke er helt utforsket.
I denne protokollen beskriver vi fremgangsmåten for å konstruere en celle kultur-systemet består av en ledende polymer skafottet, polypyrrole (PPy), som tillater i vitro elektrisk stimulering. Måte som celle kultur-systemet er fabrikkert er påfølgende implantering av stilk cellen-seeded stillaset på peri-betennelsessykdommer cortex mulig. Av dette systemet vi elektrisk forutsetning stamceller på skafottet for en kort tidsperiode før implantasjon. Etter elektrisk stimulering, ledende polymer stillaset bærer cellene er vellykket implantert intracranially med en minimal invasiv metode.

<table border="0" cellpadding="0" cellspacing="0" width="623">
	<tbody>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">FGF-Basic</td>
			<td style="width:103px;">Invitrogen</td>
			<td style="width:119px;">CTP0261</td>
			<td style="width:188px;">20 ng/mL for working media</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Matrigel</td>
			<td style="width:103px;">Corning</td>
			<td style="width:119px;">cb40234a</td>
			<td style="width:188px;">1:200 dilution</td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">LIF Protein, Recom. Hum. (10 &#181;g/mL)</td>
			<td style="width:103px;">EMD Millipore</td>
			<td style="width:119px;">LIF1010</td>
			<td style="width:188px;">10 ng/mL for working media</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Sylgard 184 silicone 3.9 kg</td>
			<td style="width:103px;">Fisherbrand</td>
			<td style="width:119px;">NC0162601</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Hydrochloric acid</td>
			<td style="width:103px;">Fisherbrand</td>
			<td style="width:119px;">SA56-4</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="60">
			<td height="60" style="height:60px;width:213px;">Nitric Acid Concentrate (Certified) ACS, Fisher Chemical</td>
			<td style="width:103px;">Fisherbrand</td>
			<td style="width:119px;">SA95</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">ITO Glass</td>
			<td style="width:103px;">Delta Technologies</td>
			<td style="width:119px;">CG-40IN-0115</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Sodium dodecylbenzenesulfonate</td>
			<td style="width:103px;">Sigma</td>
			<td style="width:119px;">289957-1KG</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="60">
			<td height="60" style="height:60px;width:213px;">Pyrrole</td>
			<td style="width:103px;">Sigma</td>
			<td style="width:119px;">131709-500ML</td>
			<td style="width:188px;">Protect pyrrole solution from light and room temperature</td>
		</tr>
		<tr height="60">
			<td height="60" style="height:60px;width:213px;">8 well glass slide chambers</td>
			<td style="width:103px;">Thermo Sci Nuc&#160;</td>
			<td style="width:119px;">125658</td>
			<td style="width:188px;">Detach the cell chamber and keep it under sterilized conditions</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Flat-Surface Bracket, 3&#34;x1&#34;</td>
			<td style="width:103px;">McMaster-Carr&#160;</td>
			<td style="width:119px;">1030A4</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="60">
			<td height="60" style="height:60px;width:213px;">TWO PART SILVER PAINT 14G</td>
			<td style="width:103px;">Electron Microscopy Sciences&#160;</td>
			<td style="width:119px;">1264214</td>
			<td style="width:188px;">Mix two parts (1:1) in plastic plate</td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">DPBS, 1x, with Ca and Mg, No Phenol Red</td>
			<td style="width:103px;">Genesse&#160;</td>
			<td style="width:119px;">25-508C</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">AB2 ArunA Neural Cell Culture Media Kit</td>
			<td style="width:103px;">Aruna Biomedical&#160;</td>
			<td style="width:119px;">ABNS7013.2</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">hNP1 Human Neural Progenitor Expansion Kit</td>
			<td style="width:103px;">Aruna Biomedical&#160;</td>
			<td style="width:119px;">&#160;hNP7013.1</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="60">
			<td height="60" style="height:60px;width:213px;">Noncontact Flow-Adjustment Valve, Nickel-Plated Brass, for 3/32&#34; to 5/8&#34; Tube OD</td>
			<td style="width:103px;">McMaster-Carr&#160;</td>
			<td style="width:119px;">5330K22</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Multimeter</td>
			<td style="width:103px;">Keysight&#160;</td>
			<td style="width:119px;">E3641A</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Wavefoam generator</td>
			<td style="width:103px;">Keysight</td>
			<td style="width:119px;">33210A-10MHz</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Pt meshes</td>
			<td style="width:103px;">Sigma-Aldrich&#160;</td>
			<td style="width:119px;">298107-425MG</td>
			<td style="width:188px;">Reference electrode with dimensions, 1x1 cm</td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;width:213px;">LIVE/DEAD Viability/Cytotoxicity Kit, for mammalian cells</td>
			<td style="width:103px;">Thermo Fisher Scientific&#160;</td>
			<td style="width:119px;">L3224</td>
			<td></td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;width:213px;">BDNF</td>
			<td style="width:103px;">Thermo Fisher Scientific&#160;</td>
			<td style="width:119px;">Hs02718934_s1</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;">THBS1</td>
			<td style="width:103px;">Thermo Fisher Scientific&#160;</td>
			<td style="width:119px;">Hs00962908_m1</td>
			<td></td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;width:213px;">GAPDH</td>
			<td style="width:103px;">Thermo Fisher Scientific&#160;</td>
			<td style="width:119px;">Hs02758991_g1</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">RNeasy Mini Kit (250)</td>
			<td style="width:103px;">Qiagen</td>
			<td style="width:119px;">74106</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">QIAshredder (250)</td>
			<td style="width:103px;">Qiagen</td>
			<td style="width:119px;">79656</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">RNase-Free DNase Set (50)</td>
			<td style="width:103px;">QIAGEN</td>
			<td style="width:119px;">79254</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">iScript cDNA Synthesis Kit, 100 x 20 &#181;L rxns</td>
			<td style="width:103px;">BIORAD</td>
			<td style="width:119px;">1708891</td>
			<td style="width:188px;"></td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;width:213px;">TaqMan Gene Expression Master Mix</td>
			<td style="width:103px;">Thermo Fisher Scientific&#160;</td>
			<td style="width:119px;">4369510</td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">7-8 Week Old, male, RNU Rats</td>
			<td style="width:103px;">NCI-Frederick</td>
			<td style="width:119px;"></td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">4-0 Ethicon Silk Suture</td>
			<td style="width:103px;">eSutures.com</td>
			<td style="width:119px;">683G</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Isoflurane</td>
			<td style="width:103px;">Henry Schein</td>
			<td style="width:119px;">29405</td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">V-1 Tabletop Laboratory Animal Anesthesia System</td>
			<td style="width:103px;">VetEquip</td>
			<td style="width:119px;">901806</td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">Surgicel Original Absorbable Hemostat</td>
			<td style="width:103px;">Ethicon</td>
			<td style="width:119px;">1952</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Lab Standard Stereotaxic Instrument, Rat</td>
			<td style="width:103px;">Stoelting</td>
			<td style="width:119px;">51600</td>
			<td></td>
		</tr>
		<tr height="80">
			<td height="80" style="height:80px;width:213px;">Kimberly-Clark Professional&#160;Safeskin Purple Nitrile Sterile Exam Gloves</td>
			<td style="width:103px;">Fisherbrand</td>
			<td style="width:119px;">19-063-130</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:213px;">Sterile Drape</td>
			<td style="width:103px;">Medline</td>
			<td style="width:119px;">DYNJSD1092</td>
			<td></td>
		</tr>
		<tr height="80">
			<td height="80" style="height:80px;width:213px;">Thermo Scientific&#160;Shandon Stainless-Steel Scalpel Blade Handle, Holds No. 20-25 Blades</td>
			<td style="width:103px;">Fisherbrand</td>
			<td style="width:119px;">53-34</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:213px;">Walter Stern Scalpel Blade Series 300</td>
			<td style="width:103px;">Fisherbrand</td>
			<td>17-654-456</td>
			<td></td>
		</tr>
		<tr height="61">
			<td height="61" style="height:61px;width:213px;">QuantStudio 6 Flex Real-Time PCR System</td>
			<td style="width:103px;">Thermo Fisher Scientific</td>
			<td style="width:119px;">4484642</td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:213px;">Frazier Micro Dissecting Hook</td>
			<td style="width:103px;">Harvard Apparatus</td>
			<td>52-2706</td>
			<td></td>
		</tr>
	</tbody>
</table>

electrically conductive scaffold to modulate and deliver stem cells

Stilk cellen terapi framstått som en spennende terapeutiske, men optimal leveringsmåte uklar. Mens teknikken av microinjection har blitt brukt i flere tiår for å levere stamceller i slag modeller, er denne teknikken begrenset av manglende evne til å manipulere stamceller før injeksjon. Dette papiret detaljer en måte å bruke en elektrisk ledende polymer stillaset stamcelleforskningen levering. Elektrisk stimulering av stilk celler med en ledende polymer stillaset endrer stilk cellens gener involvert i celle overlevelse, inflammatorisk respons og synaptic remodeling. Etter elektriske preconditioning, transplantert stamceller på skafottet intracranially i en distale arteria cerebri okklusjon rotte modell. Dette beskriver en kraftfull teknikk for å manipulere stamceller via en ledende polymer stillaset og oppretter et nytt verktøy for å videreutvikle stilk cellen-basert terapi.

Den Skjematisk vist i figur 1 representerer hele arbeidsflyten for elektrisk stimulering av hNPCs og nedstrøms bruksmuligheter. En gjeldende begrensning i stamcelleforskningen terapi er at stamceller er utsatt for en streng etter transplantasjon miljø inkludert betennelse og iskemiske tilstander. Disse vanskelige forhold sannsynligvis begrense deres terapeutiske effekten14,15. Bruk av en ledende sti...

Watch this Scientific Journal Video about Electrically Conductive Scaffold to Modulate and Deliver Stem Cells at JoVE.com

Electrically Conductive Scaffold to Modulate and Deliver Stem Cells

Denne protokollen beskriver fabrikasjon av en celle kultur-systemet tillate frø av stamceller et ledende polymer skafott i vitro elektrisk stimulering og påfølgende i vivo implantasjon av stilk cellen-seeded stillaset ved hjelp en minimal invasiv teknikk.

Elektrisk ledende stillaset å modulere og levere stamceller

Stem cell therapy has emerged as an exciting stroke therapeutic, but the optimal delivery method remains unclear. While the technique of microinjection ...

Research

JoVE Journal

Bioengineering

Use of Human Perivascular Stem Cells for Bone Regeneration

Bruk av menneskelige perivaskulær stamceller for Bone Regeneration

Human perivascular stem cells (PSCs) can be isolated in sufficient numbers from multiple tissues for purposes of skeletal tissue engineering1-3. PSCs are ...

Planar and Three-Dimensional Printing of Conductive Inks

Planar og tredimensjonale Trykking av Conductive blekk

Printed electronics rely on low-cost, large-area fabrication routes to create flexible or multidimensional electronic, optoelectronic, and biomedical ...

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves

The aortic valve, located between the left ventricle and the aorta, allows for unidirectional blood flow, preventing backflow into the ventricle. Aortic ...

Alginate Microcapsule as a 3D Platform for Propagation and Differentiation of Human Embryonic Stem Cells (hESC) to Different Lineages

Alginate Microcapsule as a 3D Platform for Propagation and Differentiation of Human Embryonic Stem Cells hESC to Different Lineages

Alginat Microcapsule som en 3D-plattform for Formering og Differensiering av humane embryonale stamceller (hESC) til ulike linjene

Human embryonic stem cells (hESC) are emerging as an attractive alternative source for cell replacement therapy since they can be expanded in culture ...

Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells (hESCs) and Induced Pluripotent Stem Cells (iPSCs)

Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells hESCs and Induced Pluripotent Stem Cells iPSCs

Utvikling, utvidelse, og<em&gt; In vivo</em&gt; Overvåking of Human NK-celler fra humane embryonale stamceller (hESCs) og og Induced pluripotent stamceller (iPSCs)

We present a method for deriving natural killer (NK) cells from undifferentiated hESCs and iPSCs using a feeder-free approach. This method gives rise to ...

Transplantation of Induced Pluripotent Stem Cell-derived Mesoangioblast-like Myogenic Progenitors in Mouse Models of Muscle Regeneration

Transplantasjon av indusert pluripotent stamcelle-avledet Mesoangioblast-lignende myogene forfedre i musemodeller av muskelregenerering

Patient-derived iPSCs could be an invaluable source of cells for future autologous cell therapy protocols. iPSC-derived myogenic stem/progenitor cells ...

Ordering Single Cells and Single Embryos in 3D Confinement: A New Device for High Content Screening

Bestilling av enkeltceller og enkelt Embryoet i 3D Confinement: En ny enhet for høyt innhold Screening

Biological cells are usually observed on flat (2D) surfaces. This condition is not physiological, and phenotypes and shapes are highly variable. Screening ...

Microdissection of Primary Renal Tissue Segments and Incorporation with Novel Scaffold-free Construct Technology

Microdissection av primære nyre vev segmenter og innlemmelse med romanen stillaset-fri konstruksjon teknologi

Kidney transplantation is now a mainstream therapy for end-stage renal disease. However, with approximately 96,000 people on the waiting list and only ...

Protocol for MicroRNA Transfer into Adult Bone Marrow-derived Hematopoietic Stem Cells to Enable Cell Engineering Combined with Magnetic Targeting

Protokoll for MicroRNA overføring til voksen Ben margtransplantasjon-avledet blodkreft stamceller aktivere cellen Engineering kombinert med magnetiske målretting

While CD133+ hematopoietic stem cells (SCs) have been proven to provide high potential in the field of regenerative medicine, their low retention rates ...

Single-Cell Optical Action Potential Measurement in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes

Enkeltcellet optisk virkningspotensial måling i humane induserte pluripotente stamcelleavledede kardiomyocytter

Conventional intracellular microelectrode techniques to quantify cardiomyocyte electrophysiology are extremely complex, labor intensive, and typically ...