Name: analysis of retinoic acid-induced neural differentiation of mouse embryonic stem cells in two and three-dimensional embryoid bodies
Uploaded: 2017-04-22T14:00:00
Description: Watch this Scientific Journal Video about Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies at JoVE.com

Denne studien ble støttet av NIH stipend R01 HL119984 til AH

1. Culture of Mouse embryonale fibroblaster (MEFs) <ol><li> Forbered MEF medium, Dulbeccos modifiserte Eagles medium (DMEM, høy glukose), supplert med 15% føtalt bovint serum (FBS). </li><li> Coat 100 mm cellekulturskåler med 0,5% gelatinoppløsning i 30 minutter ved romtemperatur (RT). </li><li> Telle MEFs ved hjelp av en cytometer. Fjern gelatinoppløsningen og før den helles MEF medium forvarmet til 37 ° C. Hurtig tines hetteglass med mitomycin-C-behandlede MEFs i et 37 ° C vannbad i 2 minutter, deretter frø...

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I denne protokollen presenterer vi en forholdsvis enkel og tilgjengelig metode for å studere nevrale differensiering av murine ESCs. I tidligere protokoller, ble RA tilsatt til mediet på dag 2 og dag 4 av den EB hengende dråpe 8 eller ved suspensjonskultur 7, henholdsvis, eller umiddelbart etter EB hengende dråpe aggregering 21. I protokollen vi utviklet, ble RA lagt tidligere. Til tross for den tidligere innføring av RA til EBS dannet av suspe...

ESCs stammer fra blastocyst indre cellemasse. Disse cellene er pluripotent, dvs. de har kapasitet til å differensiere i en celle type organisme opprinnelsesland. ESC in vitro differensiering er av bred interesse som et eksperimentelt system for å undersøke utviklingsveier og mekanismer. Det har en kraftig og fleksibel modellsystem for å teste nye terapeutiske tilnærminger for korrigering av celle og vev dysfunksjon. EBS rekapitulere mange aspekter av celledifferensiering i tidlig embryogenese. Spesielt kan EBS brukes når embryoniske letalitet gjør det vanskelig å bestemme den cellulære basis av de embryoniske defekter 1, 2. EBS kan dannes enten ved den hengende dråpe eller flytende suspensjonsteknikker 3. Fordelen med det tidligere er evnen til å generere EBS med jevn størrelse og tetthet og letter således eksperimentelle reproduserbarhet. <p class = &quot;jove_content&quot;&gt; Interaksjon med ekstracellulære matriks (ECM) adhesjonsproteiner kan påvirke motilitet og overlevelse av adherente celler. I det 2D-kultursystemet, er fibronektin ofte brukt for å øke celle adhesjon til substratet. Fibronektin er et basal lamina komponent som gjenkjennes av 10 typer av celleoverflate-integrin-heterodimerer 4. RA er en liten lipofilt metabolitt av vitamin A som induserer differensiering neural 5, 6. Høye konsentrasjoner av RA fremme nerve genekspresjon og undertrykker mesodermal genekspresjon i løpet av EB formasjon 7, 8. RA er produsert av vitamin A-oksydasjon til retinaldehyde ved enten alkohol eller retinol-dehydrogenase, etterfulgt av retinaldehyde oksydasjon til det endelige produkt ved retinaldehyde dehydrogenase 9. Neural differensiering krever transport av RA fra cytoplasma<html> til kjernen ved cellulære RA-bindende protein 2 (CRABP2). I kjernen, RA bindes til sin tilhørende reseptor-komplekset som består av en RAR-RXR heterodimer 10. Dette resulterer i rekruttering av transkripsjonelle ko-aktivatorer, og initiering av transkripsjon 9, 11. Videre fremmer RA nedbrytningen av fosforylert (aktiv) Smad 1, således antagonisering BMP og SMAD signale 12. I tillegg til disse aktiviteter øker RA Pax6 uttrykk, en transkripsjonsfaktor som støtter nevrale differensiering 13. RA signale moduleres av Sirtuin-1 (SIRT1), en kjernefysisk nikotinamid-adenin-dinukleotid (NAD +) - avhengig enzym som deacetylates CRABP2, interferere med dens translokasjon til kjernen, og følgelig med RA-binding til RAR-RXR heterodimer 14, 15, 16. e_content &quot;&gt; Vårt mål i utformingen av RA-behandlede EB protokollen som er beskrevet her er for å optimalisere neural differensiering for å lette in vitro-analyse av de signalveier som regulerer ESC differensiering til neuronale forløperceller. En av fordelene ved denne protokollen er tilrettelegging av analyse av cellefunksjon ved immunfluorescens. 3D EBS ikke er godt gjennomtrengt av antistoffer og er vanskelige å bilde. EB dissosiering i et 2D-monolaget på bestemte tidspunkter i løpet av neural differensiering letter immunmerking og avbildning av cellene ved hjelp av konfokal mikroskopi.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td colspan="4">Materials</td>
		</tr>
		<tr>
			<td>MEFs</td>
			<td>EMD Millipore</td>
			<td>PMEF-CF</td>
			<td>ESC feeder layer</td>
		</tr>
		<tr>
			<td>ESC</td>
			<td>EMD Millipore</td>
			<td>CMTI-2</td>
			<td></td>
		</tr>
		<tr>
			<td>Cell culture dish (60 mm)</td>
			<td>Eppendorf</td>
			<td>30701119</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>Cell culture dish (100 mm)</td>
			<td>Falcon</td>
			<td>353003</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>Petri dish (100 mm)</td>
			<td>Corning</td>
			<td>351029</td>
			<td>Hanging drops</td>
		</tr>
		<tr>
			<td>24-well plate</td>
			<td>Greiner Bio-One</td>
			<td>662160</td>
			<td>2D EBs</td>
		</tr>
		<tr>
			<td>6-well plate</td>
			<td>Eppendorf</td>
			<td>30720113</td>
			<td>Transfection</td>
		</tr>
		<tr>
			<td>Dark 1.5 ml centrifuge tube</td>
			<td>Celltreat Scientific Products</td>
			<td>229437</td>
			<td>RA stock solution</td>
		</tr>
		<tr>
			<td>Microscope cover-glass</td>
			<td>Fisherbrand</td>
			<td>12-545-80</td>
			<td>Circular, 12 mm diameter</td>
		</tr>
		<tr>
			<td>Superfrost-plus microscope slides</td>
			<td>Fisherbrand</td>
			<td>12-550-15</td>
			<td></td>
		</tr>
		<tr>
			<td>3D collagen culture kit</td>
			<td>EMD Millipore</td>
			<td>ECM675</td>
			<td>3D culture</td>
		</tr>
		<tr>
			<td>Effectene Transfection Reagent</td>
			<td>Qiagen</td>
			<td>301427</td>
			<td>Stem cell transfection</td>
		</tr>
		<tr>
			<td>Microcon&#160;Centrifugal Filters (10 kDa)</td>
			<td>EMD Millipore</td>
			<td>MRCPRT010</td>
			<td>Protein concentration</td>
		</tr>
		<tr>
			<td>Name&#160;</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td colspan="4">Reagents</td>
		</tr>
		<tr>
			<td>DMEM</td>
			<td>Lonza</td>
			<td>12-709F</td>
			<td>MEFs culture</td>
		</tr>
		<tr>
			<td>IMDM</td>
			<td>Gibco</td>
			<td>12440-046</td>
			<td>ESCs culture</td>
		</tr>
		<tr>
			<td>Fetal bovine serum (FBS)</td>
			<td>EMD Millipore</td>
			<td>ES-009-B</td>
			<td>ESCs culture</td>
		</tr>
		<tr>
			<td>Gelatin</td>
			<td>Sigma-Aldrich</td>
			<td>G2625</td>
			<td>Dish coating</td>
		</tr>
		<tr>
			<td>LIF</td>
			<td>R&#38;D Systems</td>
			<td>8878-LF-025</td>
			<td>To maintain ESC pluripotency</td>
		</tr>
		<tr>
			<td>MEM Non-Essential Amino Acids Solutions</td>
			<td>Gibco</td>
			<td>11140050</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>2-Mercaptoethanol</td>
			<td>Gibco</td>
			<td>21985023</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>Penicillin-Streptomycin</td>
			<td>Gibco</td>
			<td>15140122</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>Gentamicin</td>
			<td>Gibco</td>
			<td>15750060</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>MycoZap Plus-PR</td>
			<td>Lonza</td>
			<td>VZA-2022</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>0.25% Trypsin-EDTA</td>
			<td>Gibco</td>
			<td>25200-072</td>
			<td>Cell culture</td>
		</tr>
		<tr>
			<td>DMSO</td>
			<td>Sigma-Aldrich</td>
			<td>D2650</td>
			<td></td>
		</tr>
		<tr>
			<td>All-trans-retinoic acid</td>
			<td>Sigma-Aldrich</td>
			<td>R2625-50MG</td>
			<td>Induction of neural differentiation</td>
		</tr>
		<tr>
			<td>Bovine Serum Albumin</td>
			<td>Sigma-Aldrich</td>
			<td>A7030-50G</td>
			<td>Blocking and antibody dilution&#160;</td>
		</tr>
		<tr>
			<td>Triton X-100</td>
			<td>Sigma-Aldrich</td>
			<td>T8787-100ML</td>
			<td>Cell membrane permeabilization</td>
		</tr>
		<tr>
			<td>Cell strainer</td>
			<td>Corning</td>
			<td>352360</td>
			<td></td>
		</tr>
		<tr>
			<td>Prolong Gold anti-fade reagent with DAPI</td>
			<td>Life Tech.</td>
			<td>P36931</td>
			<td>Mounting reagent</td>
		</tr>
		<tr>
			<td>16% Paraformaldehyde&#160;</td>
			<td>Electron Microscopy Sciences</td>
			<td>15710</td>
			<td>Cell fixation</td>
		</tr>
		<tr>
			<td>Fibronectin</td>
			<td>R&#38;D Systems</td>
			<td>1030-FN</td>
			<td>Dish coating</td>
		</tr>
		<tr>
			<td>PBS</td>
			<td>Gibco</td>
			<td>10010049</td>
			<td></td>
		</tr>
		<tr>
			<td>Collagenase type I</td>
			<td>Worthington Biochem. Corp</td>
			<td>LS004196</td>
			<td>EB dissociation</td>
		</tr>
		<tr>
			<td>Name&#160;</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td colspan="4">Primary Antibodies</td>
		</tr>
		<tr>
			<td>Nestin (Rat-401)</td>
			<td>Santa Cruz Biotech</td>
			<td>sc-33677</td>
			<td>Detection of neural differentiation</td>
		</tr>
		<tr>
			<td>Oct4</td>
			<td>Santa Cruz Biotech</td>
			<td>sc-5279</td>
			<td>Detection of neural differentiation</td>
		</tr>
		<tr>
			<td>Nanog</td>
			<td>Bethyl Laboratories</td>
			<td>A300-398A</td>
			<td>Detection of neural differentiation</td>
		</tr>
		<tr>
			<td>Sox2</td>
			<td>Cell Signaling</td>
			<td>3579</td>
			<td>Detection of neural differentiation</td>
		</tr>
		<tr>
			<td>Tubulin b3 (AA10)</td>
			<td>Santa Cruz Biotech</td>
			<td>sc-80016</td>
			<td>Detection of neural differentiation</td>
		</tr>
		<tr>
			<td>Name&#160;</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td colspan="4">Secondary Antibodies</td>
		</tr>
		<tr>
			<td>Donkey anti-Mouse-Alexa555</td>
			<td>Life Tech.</td>
			<td>A31570</td>
			<td>Immunofluorescence</td>
		</tr>
		<tr>
			<td>Donkey anti-mouse-Alexa488&#160;</td>
			<td>Life Tech.</td>
			<td>A21202</td>
			<td>Immunofluorescence</td>
		</tr>
		<tr>
			<td>Name&#160;</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td colspan="4">Instruments</td>
		</tr>
		<tr>
			<td>Wide-field microscope</td>
			<td>Nikon</td>
			<td>Eclipse TS100</td>
			<td>Cell culture imaging</td>
		</tr>
		<tr>
			<td>Confocal microscope</td>
			<td>Nikon</td>
			<td>C2</td>
			<td>Immunofluorescence imaging</td>
		</tr>
	</tbody>
</table>

analysis of retinoic acid-induced neural differentiation of mouse embryonic stem cells in two and three-dimensional embryoid bodies

Muse embryonale stamceller (ESCS) er isolert fra den indre massen av blastocysten (typisk dag E3.5), kan bli anvendt som in vitro modellsystem for å studere tidlige embryoutvikling. I fravær av leukemi-inhiberende faktor (LIF), ESCs differensiere som standard i neurale forløperceller. De kan bli samlet inn i en tre-dimensjonal (3D) sfærisk aggregat betegnet embryoid legeme (EB) på grunn av dets likhet til tidlig stadium embryo. EBS kan podes på fibronectin-belagte dekkglass, hvor de utvider seg ved økende todimensjonale (2D) utvidelser eller implantert i 3D kollagenmatrikser hvor de fortsetter å vokse som sfæroider, og skille ut de tre kimlag: endodermal, mesodermal, og ectodermal. 3D-kollagen kulturen etterligner in vivo miljøet tettere enn 2D EBS. 2D EB kultur muliggjør analyse av immunfluorescens og immunblotting for å spore differensiering. Vi har utviklet en to-trinns nevrale differentiasjon protokoll. I det første trinn blir EBS generert av den hengende dråpe-teknikk, og, samtidig, blir indusert til å differensiere ved hjelp av eksponering for retinsyre (RA). I det andre trinnet, neural differensiering forløper i et 2D eller 3D-format i fravær av RA.

Oct4, Nanog, og SOX2 er kjernen transkripsjonsfaktorer som utviser ESC selvfornyelse og pluripotency. Vi anvendte den ovennevnte protokoll for å sammenligne det neurale differensiering av ESCs fra villtypen og fra en stamme av genetisk modifiserte mus hvor Syx, et gen som koder for den RhoA spesifikke utveksling faktor Syx, blir forstyrret. Vi hadde innblandet Syx i angiogenese 18. Vi la merke til forskjeller i atferd av EBS aggregeres fra Syx +...

Watch this Scientific Journal Video about Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies at JoVE.com

Analysis of Retinoic Acid-induced Neural Differentiation of Mouse Embryonic Stem Cells in Two and Three-dimensional Embryoid Bodies

Vi beskriver en teknikk for anvendelse av muse embryonale stamceller for generering av to eller tredimensjonale embryoidlegemene. Vi forklarer hvordan å indusere differensiering av nevrale embryoid kroppscellene hos retinsyre, og hvordan å analysere deres tilstand av differensiering av stamceller markør immunfluorescens og immunblotting.

Analyse av retinsyre-indusert Neural Differensiering av mus embryonale stamceller i to og tre-dimensjonale embryoidlegemer

Mouse embryonic stem cells (ESCs) isolated from the inner mass of the blastocyst (typically at day E3.5), can be used as in vitro model system for ...

The overall goal of this procedure is to analyze the expression and production of genes and protein markers, respectively, of neural differentiation of mouse embryonic stem cells. This method can help determine the mechanism responsible for the inhibition of neural differentiation by the raw age of DPAs, and lead to better protocols to differentiate stem cells into neurons for therapeutic purposes. The main advantage of this technique is that it facilitates tracking the process of neural differentiation at the emerin and protein levels, including by optical microscopy.Demonstrating the procedure will be Dr.Junning Yang, a research associate in my laboratory. Begin embryoid body formation by harvesting embryonic stem cells with 0.25%Trypsin-EDTA for two to five minutes at 37 degrees celsius, 5%carbon dioxide. Add fresh Iscove's Modified Dulbecco's Medium, or IMDM, with 15%FBS to the detaching cells, and transfer the cell suspension to a 15 milliliter tube.Centrifuge at 160 x G for five minutes at room temperature. Then count the cells using a hemocytometer, and prepare a five x 10 to the fifth cells per milliliter suspension in IMDM with 0.5 micromolar retinoic acid. Next, use an eight-channel pipette and 200-microliter tips to plate 120-microliter drops per 100 millimeter petri dish.Invert the dish and fill the inverted lid with PBS to prevent hanging drops from drying. Culture at 37 degrees celsius, 5%carbon dioxide, for three to four days. Use 200-microliter pipette tips to harvest hanging drop embryoid bodies grown for three days.Touch an embryoid body with a pipette tip, and transfer it to a fibernectin-coated cover slip in a 24-well plate. Change the medium on the cultures every two to three days. When changing the medium, collect the used medium for protein secretion analysis as needed.To detect secreted proteins in the medium, transfer 500 microliters of embryoid body medium to 10 kilodalton cutoff centrifugal filters, and spin at 20, 000 x G at four degrees celsius. Examine the medium remaining inside the centrifugal filters every 15 to 20 minutes to prevent excessive enrichment. Stop centrifugation when the volume of the remaining medium has fallen to 25 microliters.Invert the filter and spin at 160 x G at four degrees celsius, then collect the remaining concentrated medium by following the manufacturer's instructions. For a 3D culture, harvest embryoid bodies grown for four days as hanging drops with 200-microliter pipette tips, as before. Transfer 30 embryoid bodies to a 1.5 milliliter centrifuge tube, then prepare collagen gel solution by diluting appropriate volumes of collagen solution and 5X DMEM, adding the neutralization solution, and immediately mixing well.Place the collagen gel on ice. Next, pipette an appropriate volume of chilled collagen solution into the tube containing the embryoid bodies, and then gently pipette the embryoid body suspension into the wells of a six-well plate without creating bubbles. Immediately transfer the plate to 37 degrees celsius, 5%carbon dioxide, for 60 minutes to initiate collagen polymerization.After the 60 minutes, overlay the plate containing the embryoid bodies with IMDM. For embryoid body dissociation, again collect the four-day hanging drop embryoid bodies with 200-microliter pipette tips. This time, transfer them to a non-adhesive bacteriological petri dish containing IMDM with 15%FBS and culture at 37 degrees celsius, 5%carbon dioxide, for four more days.Check the embryoid bodies twice every day to make sure they do not attach to the bottom. Gently shake the dish to prevent embryoid body attachment. After four days, transfer the embryoid bodies to a centrifuge tube and centrifuge at 185 x G for five minutes at room temperature.Following centrifugation, remove the supernatant. The palette volume should not exceed 100 microliters. Next, pipette one milliliter of 0.25%type I collagenase, supplemented with 20%FBS in PBS into the tube of embryoid bodies.Incubate the mixture for one hour at 37 degrees celsius and 5%carbon dioxide. Gently pipette the suspension using a one-milliliter pipette tip every 20 minutes. After the incubation, gently wash the cells three times with PBS.If cell aggregates are present, use a cell strainer with a 100-micron mesh to remove them. Plate the cells on gelatin-coated cover slips in IMDM, then incubate at 37 degrees celsius and 5%carbon dioxide. Wash the 2D or dissociated 3D embryoid bodies with PBS.Then fix with four percent paraformaldehyde and PBS for 30 minutes at room temperature. After washing the fixed cells three times with PBS to remove floating cell debris, add 1%triton X-100 in PBS to permeabilize the cells for 20 minutes at room temperature. After washing as before, remove the last wash and block with 5%BSA in PBS for 30 minutes.Towards the end of the incubation, prepare a primary antibody dillution in 1%BSA in PBS supplemented with 0.03%triton X-100. When the 30 minutes has elapsed, replace the blocking solution with the primary antibody solution. Incubate for three hours at room temperature, or overnight, at four degrees celsius.After washing, apply a secondary antibody in PBS and incubate for one hour at room temperature. Finally, mount cover slips on glass slides with an anti-fade medium for optical microscopy. This image shows sprout emergence from an embryoid body generated from ESCs, positive for two copies of the Syx gene, which codes for a guanine exchange factor that activates the GTPase RhoA.The image was taken after six days in 3D culture. This embryoid body formed from Syx KnockOut ESCs demonstrates increased sprouting after the same time in culture. Here, phase images of 2D embryoid body edges show that cells expanded faster from Syx KnockOuts than from Syx wild-type.These immunofluorescence images illustrate that the neural differentiation marker, Nestin, shown in red, was more abundant in cells expanding from six-day 2D6 KnockOut embryoid bodies than from their Syx wild-type counterparts. Here, immunofluorescence images show that the neural differentiation markers Nestin and beta III Tubulin were more abundant in cells dissociated from 13-day 3D6 KnockOut embryoid bodies than from their Syx wild-type counterparts. This is a time-consuming procedure because of the duration of embryoid body growth and differentiation.It not only requires at least eight days, but in some cases we follow differentiation up to 24 days. While attempting this procedure, it is important to remember to limit the viability of embryoid body diameter to ensure similar differentiation rates along the embryoid bodies.

Research

JoVE Journal

Developmental Biology

Deriving Retinal Pigment Epithelium (RPE) from Induced Pluripotent Stem (iPS) Cells by Different Sizes of Embryoid Bodies

Deriving Retinal Pigment Epithelium RPE from Induced Pluripotent Stem iPS Cells by Different Sizes of Embryoid Bodies

Stammer Netthinne Pigment Epitel (RPE) fra Induced pluripotent Stem (IPS) Cells av forskjellige størrelser av embryoid Bodies

Pluripotent stem cells possess the ability to proliferate indefinitely and to differentiate into almost any cell type. Additionally, the development of ...

Differentiation of a Human Neural Stem Cell Line on Three Dimensional Cultures, Analysis of MicroRNA and Putative Target Genes

Differensiering av Human Neural Stem Cell Line on tredimensjonal kulturer, Analyse av mikroRNA og Antatte målgener

Neural stem cells (NSCs) are capable of self-renewal and differentiation into neurons, astrocytes and oligodendrocytes under specific local ...

Neural Differentiation of Mouse Embryonic Stem Cells in Serum-free Monolayer Culture

Neural Differensiering av mus embryonale stamceller i Serum-free enlagskultur

The ability to differentiate mouse embryonic stem cells (ESC) to neural progenitors allows the study of the mechanisms controlling neural specification as ...

Epigenetic Regulation of Cardiac Differentiation of Embryonic Stem Cells and Tissues

Epigenetisk regulering av Cardiac Differensiering av embryonale stamceller og vev

Specific gene transcription is a key biological process that underlies cell fate decision during embryonic development. The biological process is mediated ...

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation

Prediksjon og validering av Gene Regulatory Elements aktiveres under retinsyre Induced Embryonic Stem Cell Differensiering

Embryonic development is a multistep process involving activation and repression of many genes. Enhancer elements in the genome are known to contribute to ...

Horizontal Whole Mount: A Novel Processing and Imaging Protocol for Thick, Three-dimensional Tissue Cross-sections of Skin

Horisontal helmontering: En romanbehandlings- og bildeprotokoll for tykke, tredimensjonale vev Tverrsnitt av huden

Processing a tissue of interest to generate a microscopic image that supports a scientific argument can be challenging. The acquisition of high-quality ...

Rapid, Directed Differentiation of Retinal Pigment Epithelial Cells from Human Embryonic or Induced Pluripotent Stem Cells

Rask, rettet differensiering av netthinnens Pigment epitelceller fra menneskelige embryonale eller indusert Pluripotent stamceller

We describe a robust method to direct the differentiation of pluripotent stem cells into retinal pigment epithelial cells (RPE). The purpose of providing ...

Generation of Scaffold-free, Three-dimensional Insulin Expressing Pancreatoids from Mouse Pancreatic Progenitors In Vitro

Generation of Scaffold-free, Three-dimensional Insulin Expressing Pancreatoids from Mouse Pancreatic Progenitors In Vitro

Generasjon av stillaset-fri, tredimensjonale Insulin uttrykke Pancreatoids fra musen bukspyttkjertelen Progenitors In Vitro

The pancreas is a complex organ composed of many different cell types that work together to regulate blood glucose homeostasis and digestion. These cell ...

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Beregningsorientert analyse av Caenorhabditis elegans Germline å studere distribusjon av kjerner, proteiner og Cytoskeleton

The Caenorhabditis elegans (C. elegans) germline is used to study several biologically important processes including stem cell development, apoptosis, and ...

Generation of Human Primordial Germ Cell-like Cells at the Surface of Embryoid Bodies from Primed-pluripotency Induced Pluripotent Stem Cells

Generasjon av menneskelige Primordial bakterie celle-lignende celler på overflaten av Embryoid organer fra primet pluripotency indusert Pluripotent stamceller

Primordial germ cells (PGCs) are common precursors of all germline cells. In mouse embryos, a founding population of ~40 PGCs are induced from pluripotent ...