Embrionali umane studi sulle cellule staminali in laboratorio Teitell sono supportati da una California Institute for Regenerative Medicine (CIRM) sementi concedere RS1-00313. Ringraziamo i membri del Centro di Medicina Rigenerativa Broad e ricerca sulle cellule staminali presso la UCLA, in particolare il Dott. Amander Clark, il Dr. Jerome Zack, e membri del Fondo per la UCLA Stem Cell Institute Broad core per il loro sostegno dei nostri studi.

HESC scissione da Matrigel a Matrigel Di solito un confluenti 6 pozzetti di hESC su Matrigel possono essere divisi 1:03-01:05 ad un altro piatto Matrigel, con i pozzi di diventare confluenti ancora 4-5 giorni dopo la divisione. <ol><li> CM e le piastre Matrigel sono preparati come descritto in precedenza prima di sciogliersi. </li><li> Il giorno della scissione, lavare i pozzetti per la scissione con 1 × PBS, pH7.4, aggiungere 1 ml di 1mg/ml dispasi (soluzione madre diluita 5mg/ml con DMEM/F12 media) in ciascun pozzetto e incubare a 37 ° C per 3 min. </li><li> Lavare i pozzetti tre volte con 1 × PBS, pH7.4, aggiungere 1 ml di ES media senza bFGF, usare un raschietto colonie di cellule per raschiare dal fondo del pozzo, raccogliere le hESC sospeso in un tubo da 50 ml falco, e pellet per centrifugazione a 200g per 5 minuti a temperatura ambiente. </li><li> Per ri-targhetta del hESC su piastre Matrigel, prima lavare i piatti con Matrigel DMEM/F12 e aggiungere 2,5 ml di CM integrata con 10ng/ml bFGF per bene. Risospendere il pellet in hESC un volume adeguato di CM integrata con 10ng/ml bFGF, pipetta la sospensione cellulare su e giù per tre volte. (NOTA: quando hESC per suddividere provengono da piastre Matrigel, le macchie sono molto facili da rompere, quindi tre cicli di pipettaggio è sufficiente e più pipettaggio può over-disturbare le colonie e fare singole cellule.) Aliquota 0,5 ml di sospensione hESC grumi per bene del 6-pozzetti Matrigel per ottenere 3 ml per oltre un volume finale. Porre la piastra in un incubatore a 37 ° C. </li></ol> Individuazione di marcatori di pluripotenza microscopia di immunofluorescenza Microscopia a immunofluorescenza è utilizzato per esaminare l&#39;espressione di marcatori hESC pluripotenza Oct-4 e SSE-4 durante la coltura. <ol><li> Aspirare multimediali da un pozzetto e lavare con 1 × PBS, pH 7,4. Aggiungere 2 ml di 3,7% di formaldeide al pozzo di correzione per 10 min. </li><li> Risciacquare con 1xPBS, pH 7,4, aggiungere 2 ml di metanolo al pozzo e posto a -20 ° C per 2 min. </li><li> Risciacquare con 1xPBS, pH 7,4, e blocco con 1 ml di 0,2% serume albumina bovina (BSA) per 5 min. </li><li> Aggiungere 1 ml di anticorpo Oct-4 o anti-h/mSSEA-4 (1:200 diluizione nel 0,2% di BSA), e incubare a temperatura ambiente per 1 ora oppure a 4 ° C per una notte. (NOTA: per SSE-4 macchie, passare direttamente al punto 6) </li><li> Lavare tre volte con 1xPBS, pH 7,4, aggiungere FITC-coniugato IgG di coniglio (1:500 diluizione nel 0,2% di BSA), e incubare a temperatura ambiente per 1 ora. </li><li> Lavare 3 volte con 1xPBS, pH 7,4, e mettere una goccia di soluzione di montaggio (può contenere DAPI visualizzazione nucleare se si vuole) al centro del pozzo. Mettere coprioggetto sopra delle celle, sigillare con smalto, e valutare al microscopio immunofluorescenza. </li></ol> Cellule staminali embrionali umane ricevute ES media (mezzi di cellule staminali embrionali): DMEM/F12 - 400ml Knockout siero Replacer - 100ml Aminoacidi non essenziali - 5ml 200mm GlutaMax / BME Solution - 5ml Penicillina / streptomicina - 5ml Mescolare bene e conservare finale Media Cultura hESC in bottiglie da 500ml a 4 ° C. Buono per un massimo di due settimane. MEF Cultura Media: DMEM - 1000ml FBS - 100ml Aminoacidi non essenziali - 10ml Glutammina - 10ml Penicllin / streptomicina - 10ml Mescolare bene e conservare finale Media Cultura MEF a 4 ° C. 200mm Glutamax / BME Soluzione: Glutamax - 100ml β-mercaptoetanolo (Soluzione madre a 14,3 milioni) - 140 μ1 Mescolare due soluzioni bene e poi porzioni da 10 ml aliquota. Mantenere aliquote a -20 ° C. bFGF Soluzione (concentrazione finale di magazzino: 10 microgrammi / ml): bFGF (FGF2) - 50 mcg BSA 0,1% nel 1xPBS, pH 7,4 - 5 ml Sciogliere 50 microgrammi bFGF in 5ml BSA 0,1% per fare un 10 mcg / ml di brodo. Aliquotare in porzioni da 500 microlitri. Conservare a -80 ° C. Collagenasi IV Soluzione (1mg/ml): Collagenasi IV - 50mg DMEM/F12 Media - 50ml Aggiungere la polvere di collagenasi IV in una provetta da 50 ml falco. Nel cofano, mescolare in 50ml di sterili DMEM/F12 media. Vortex la soluzione per &lt;1 min. per assicurarsi che la polvere è sciolta. Nel cofano, passare attraverso un filtro di 0,22 micron in un nuovo tubo sterile da 50ml falco. Questa soluzione è buona per un massimo di 2 settimane conservato a 4 ° C. Dispasi Soluzione (1mg/ml): Dispasi 5mg/ml - 2ml Media DMEM/F12 - 8ml Aliquota commerciale 5mg/ml soluzione dispasi e conservare a -20 ° C. Diluire dispasi a 1mg/ml utilizzando DMEM/F12. Questa soluzione può essere conservata per 1 settimana a 4 ° C.

<ol>
	<li>Thomson, J. a. m. e. s. A., Itskovitz-Eldor, J. o. s. e. p. h., Shapiro, S. a. n. d. e. r. S., Waknitz, M. i. c. h. e. l. l. e. A., Swiergiel, J. e. n. n. i. f. e. r. J., Marshall, V. i. v. i. e. n. n. e. S., Jones, J. e. f. f. r. e. y. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Embryonic+Stem+Cell+Lines+Derived+from+Human+Blastocysts+.">Embryonic Stem Cell Lines Derived from Human Blastocysts .</a> Science. 282, 1145-1147 (1998).</li><li>Xu, C. h. u. n. h. u. i., Inokuma, M. a. r. g. a. r. e. t. S., Denham, J. e. r. r. o. d., Golds, K. a. t. h. a. l. e. e. n., Kundu, P. r. a. t. i. m. a., Gold, J. o. s. e. p. h. D., Carpenter, M. e. l. i. s. s. a. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=+Feeder-free+growth+of+undifferentiated+human+embryonic+stem+cells+Nature+Biotechnology+19."> Feeder-free growth of undifferentiated human embryonic stem cells Nature Biotechnology 19.</a> Nature Biotechnology. 19, 971-974 (2001).</li></ol>

Questa serie di 3 video dimostra come far crescere cellule staminali embrionali umane (hESC) su fibroblasti embrionali di topo (MEF), le cellule di alimentazione (video 1), come passaggio a Matrigel cell-free alimentatore piastre (video 2), e come mantenere hESC da passaging in alimentatore Matrigel condizioni cell-free (video 3). Numerosi studi precedenti hanno mostrato che il mantenimento della vitali, hESC indifferenziato richiede cultura sulle cellule inattivate alimentatore MEF. Tuttavia, per molti esperimenti, una popolazione pura di ...

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		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
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<tr>
<td>Knockout Serum Replacer (KSR)</td>
<td>Reagent</td>
<td>Gibco</td>
<td>10828-028</td>
<td>&nbsp;</td>
<tr>
<td>DMEM/F12</td>
<td>Reagent</td>
<td>Gibco</td>
<td>11330-057</td>
<td>&nbsp;</td>
<tr>
<td> Non-essential Amino Acids</td>
<td>Reagent</td>
<td>Gibco</td>
<td>11140-050</td>
<td>&nbsp;</td>
<tr>
<td>GlutaMax </td>
<td>Reagent</td>
<td>Gibco</td>
<td>35050-061</td>
<td>&nbsp;</td>
<tr>
<td>DMEM</td>
<td>Reagent</td>
<td>Gibco</td>
<td>11995-065</td>
<td>&nbsp;</td>
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<td>FBS</td>
<td>Reagent</td>
<td>Clontech</td>
<td>631107</td>
<td>&nbsp;</td>
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<td>L-glutamine</td>
<td>Reagent</td>
<td>Gibco</td>
<td>25030-081</td>
<td>&nbsp;</td>
<tr>
<td>BME</td>
<td>Reagent</td>
<td>Fisher</td>
<td>BP176-100</td>
<td>&nbsp;</td>
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<td>bFGF</td>
<td>Reagent</td>
<td>R&D Systems</td>
<td>233-FB-025</td>
<td>&nbsp;</td>
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<td>Collagenase IV</td>
<td>Reagent</td>
<td>Gibco</td>
<td>17104-019</td>
<td>&nbsp;</td>
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<td>Dispase</td>
<td>Reagent</td>
<td>Stem Cell Technologies</td>
<td>17105-041</td>
<td>&nbsp;</td>
<tr>
<td>Penicillin / Streptomycin </td>
<td>Reagent</td>
<td>Gibco</td>
<td>15140-122</td>
<td>&nbsp;</td>
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<td>Gelatin</td>
<td>Reagent</td>
<td>Chemicon</td>
<td>ES-006-B</td>
<td>&nbsp;</td>
<tr>
<td>Matrigel</td>
<td>Reagent</td>
<td>BD Biosciences</td>
<td>354277</td>
<td>&nbsp;</td>
<tr>
<td>Oct-4 antibody</td>
<td>Reagent</td>
<td>Santa Cruz Biotechnology</td>
<td>SC-9081</td>
<td>&nbsp;</td>
<tr>
<td>anti-h/mSSEA-4 Phycoerythrin Conjugated Mouse IgG3</td>
<td>Reagent</td>
<td>R&D Systems</td>
<td>FAB1435P</td>
<td>&nbsp;</td>
<tr>
<td>FITCI-conjugated antirabbit IgG</td>
<td>Reagent</td>
<td>Jackson ImmunoResearch Laboratories. Inc.</td>
<td>715-095-152</td>
<td>&nbsp;</td>		</tbody>
		</table>
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from mefs to matrigel 3: passaging hescs from matrigel onto matrigel

Questo video dimostra come mantenere la crescita delle cellule staminali embrionali umane (hESC) in cellule di alimentazione priva di condizioni e modalità di continuo passaggio in hESC alimentatore cellulare senza condizioni. Conferma di hESC pluripotenza delle cellule coltivate in alimentatore senza condizioni al microscopio immunofluorescenza è anche dimostrata.

Watch this Scientific Journal Video about From MEFs to Matrigel 3: Passaging hESCs from Matrigel onto Matrigel at JoVE.com

From MEFs to Matrigel 3: Passaging hESCs from Matrigel onto Matrigel

Questo video dimostra come mantenere la crescita delle cellule staminali embrionali umane (hESC) in cellule di alimentazione priva di condizioni e modalità di continuo passaggio in hESC alimentatore cellulare senza condizioni. Conferma di hESC pluripotenza delle cellule coltivate in alimentatore senza condizioni al microscopio immunofluorescenza è anche dimostrata. Parte 3 di 3.

Dal MEF per Matrigel 3: hESC Passaging da Matrigel su Matrigel

This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage ...

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Research

JoVE Journal

Biology

13.7K Views.  University of California, Los Angeles. Questo video dimostra come mantenere la crescita delle cellule staminali embrionali umane (hESC) in cellule di alimentazione priva di condizioni e modalità di continuo passaggio in hESC alimentatore cellulare senza condizioni. Conferma di hESC pluripotenza delle cellule coltivate in alimentatore senza condizioni al microscopio immunofluorescenza è anche dimostrata. Parte 3 di 3.

Video: From MEFs to Matrigel 3: Passaging hESCs from Matrigel onto Matrigel

Passaging Human Neural Stem Cells

The ability to manipulate human neural stem/precursor cells (hNSPCs) in vitro provides a means to investigate their utility as cell transplants for therapeutic purposes as well as to explore many fundamental processes of human neural development and pathology.  This protocol presents a simple method of culturing and passaging hNSPCs in hopes of standardizing this technique and increasing reproducibility of human stem cell research.  The hNSPCs we use were isolated from cadaveric postnatal brain cortices by the National Human Neural Stem Cell Resource and grown as adherent cultures on flasks coated with fibronectin (Palmer et al., 2001; Schwartz et al., 2003).  We culture our hNSPCs in a DMEM:F12 serum-free media supplemented with EGF, FGF, and PDGF and passage them 1:2 approximately every seven days.  Using these conditions, the majority of the cells in the culture maintain a bipolar morphology and express markers of undifferentiated neural stem cells (such as nestin and sox2).

The ability to manipulate human neural stem/precursor cells (hNSPCs) in vitro allows to investigate their utility as cell transplants for therapeutic purposes and to explore human neural development. This protocol presents a method of culturing and passaging hNSPCs in hopes of increasing reproducibility of human stem cell research.

Passaging cellule staminali neuronali

The ability to manipulate human neural stem/precursor cells (hNSPCs) in vitro provides a means to investigate their utility as cell transplants for ...

Ricerca

Biologia

From MEFs to Matrigel I: Passaging hESCs in the Presence of MEFs

This video demonstrates how to grow human embryonic stem cells (hESCs) on mouse embryonic fibroblast (MEF) feeder cells.


This video demonstrates how to grow human embryonic stem cells (hESCs) on mouse embryonic fibroblast (MEF) feeder cells. Part 1 of 3.

Dal MEF per Matrigel I: hESC Passaging in presenza di MEF

This video demonstrates how to grow human embryonic stem cells (hESCs) on mouse embryonic fibroblast (MEF) feeder cells.
...

Generating iPS Cells from MEFS through Forced Expression of Sox-2, Oct-4, c-Myc, and Klf4

Pluripotency can be induced in differentiated murine by viral transduction of Oct4, Sox2, Klf4, and c-Myc (Takahashi and Yamanaka, 2006; Wernig, et al., 2007; Okita, et al., 2007; Maherali, et al., 2007). We have devised a reprogramming strategy in which these four transcription factors are expressed from doxycycline (dox)-inducible lentiviral vectors (Brambrink et al., 2008). Using these inducible constructs, we can derive induced pluripotent stem (iPS) cells from mouse embryonic fibroblasts (MEFs). In this video, we demonstrate the procedure for the generation of inducible lentiviruses that express the four transcription factors and show how to infect MEFs with these viruses in order to produce iPS cells. By using inducible lentiviruses, the expression of the four factors in controlled by the addition of doxycyline to the culture medium. The advantage of this system over the traditional retroviral infection is the ability to turn the genes on and off so that the kinetics of reprogramming and gene expression requirements can be analyzed in detail.

This video shows the procedure for generating induced pluripotent stem cells using inducible lentivirus that express Oct4, Sox2, c-Myc and Klf4.

Generare cellule iPS dal MEF attraverso l&#39;espressione forzata di Sox-2, Oct-4, c-Myc e Klf4

Pluripotency can be induced in differentiated murine by viral transduction of Oct4, Sox2, Klf4, and c-Myc (Takahashi and Yamanaka, 2006;  Wernig, et al., ...

From MEFs to Matrigel 2: Splitting hESCs from MEFs onto Matrigel

This video demonstrates how to grow human embryonic stem cells (hESCs) on mouse embryonic fibroblast (MEF) feeder cells, how to passage hESCs from MEF plates to feeder cell-free Matrigel plates.


This video demonstrates how to maintain the growth of human embryonic stem cells (hESCs) in feeder cell-free conditions and how to continuously passage hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated. Part 2 of 3.

Dal MEF per Matrigel 2: hESC scissione dal MEF sul Matrigel

This video demonstrates how to grow human embryonic stem cells (hESCs) on mouse embryonic fibroblast (MEF) feeder cells, how to passage hESCs from MEF ...

Cargo Loading onto Kinesin Powered Molecular Shuttles

Cells have evolved sophisticated molecular machinery, such as kinesin motor proteins and microtubule filaments, to support active intracellular transport of cargo. While kinesins tail domain binds to a variety of cargoes, kinesins head domains utilize the chemical energy stored in ATP molecules to step along the microtubule lattice. The long, stiff microtubules serve as tracks for long-distance intracellular transport.
These motors and filaments can also be employed in microfabricated synthetic environments as components of molecular shuttles 1. In a frequently used design, kinesin motors are anchored to the track surface through their tails, and functionalized microtubules serve as cargo carrying elements, which are propelled by these motors. These shuttles can be loaded with cargo by utilizing the strong and selective binding between biotin and streptavidin. The key components (biotinylated tubulin, streptavidin, and biotinylated cargo) are commercially available.
Building on the classic inverted motility assay 2, the construction of molecular shuttles is detailed here. Kinesin motor proteins are adsorbed to a surface precoated with casein; microtubules are polymerized from biotinylated tubulin, adhered to the kinesin and subsequently coated with rhodamine-labeled streptavidin. The ATP concentration is maintained at subsaturating concentration to achieve a microtubule gliding velocity optimal for loading cargo 3. Finally, biotinylated fluorescein-labeled nanospheres are added as cargo. Nanospheres attach to microtubules as a result of collisions between gliding microtubules and nanospheres adhering to the surface.
The protocol can be readily modified to load a variety of cargoes such as biotinylated DNA4, quantum dots 5 or a wide variety of antigens via biotinylated antibodies 4-6.

Molecular shuttles consisting of functionalized microtubules gliding on surface-adhered kinesin motor proteins can serve as a nanoscale transport system. Here, the assembly of a typical shuttle system is described.

Caricamento di merci su Kinesin Navette Powered molecolare

Cells have evolved sophisticated molecular machinery, such as kinesin motor proteins and microtubule filaments, to support active intracellular transport ...

An Introduction to Worm Lab: from Culturing Worms to Mutagenesis

This protocol describes procedures to maintain nematodes in the laboratory and how to mutagenize them using two alternative methods: ethyl methane sulfonate (EMS) and 4, 5', 8-trimethylpsoralen combined with ultraviolet light (TMP/UV). Nematodes are powerful biological systems for genetics studies because of their simple body plan and mating system, which is composed of self-fertilizing hermaphrodites and males that can generate hundreds of progeny per animal. Nematodes are maintained in agar plates containing a lawn of bacteria and can be easily transferred from one plate to another using a pick. EMS is an alkylating agent commonly used to induce point mutations and small deletions, while TMP/UV mainly induces deletions. Depending on the species of nematode being used, concentrations of EMS and TMP will have to be optimized. To isolate recessive mutations of the nematode Pristionchus pacificus, animals of the F2 generation were visually screened for phenotypes. To illustrate these methods, we mutagenized worms and looked for Uncoordinated (Unc), Dumpy (Dpy) and Transformer (Tra) mutants.

Screening for mutants with phenotypic defects is a straightforward method for identifying genes that function in a given biological process. In this article we describe how to culture free living worms (e.g., Pristionchus pacificus) in the laboratory and show two different mutagenesis methods, EMS and TMP/UV.

Introduzione al Laboratorio Worm: da Worms coltura a mutagenesi

This protocol describes procedures to maintain nematodes in the laboratory and how to mutagenize them using two alternative methods: ethyl methane ...

A Matrigel-Based Tube Formation Assay to Assess the Vasculogenic Activity of Tumor Cells

Over the past several decades, a tube formation assay using growth factor-reduced Matrigel has been typically employed to demonstrate the angiogenic activity of vascular endothelial cells in vitro1-5. However, recently growing evidence has shown that this assay is not limited to test vascular behavior for endothelial cells. Instead, it also has been used to test the ability of a number of tumor cells to develop a vascular phenotype6-8. This capability was consistent with their vasculogenic behavior identified in xenotransplanted animals, a process known as vasculogenic mimicry (VM)9. There is a multitude of evidence demonstrating that tumor cell-mediated VM plays a vital role in the tumor development, independent of endothelial cell angiogenesis6, 10-13. For example, tumor cells were found to participate in the blood perfused, vascular channel formation in tissue samples from melanoma and glioblastoma patients8, 10, 11. Here, we described this tubular network assay as a useful tool in evaluation of vasculogenic activity of tumor cells. We found that some tumor cell lines such as melanoma B16F1 cells, glioblastoma U87 cells, and breast cancer MDA-MB-435 cells are able to form vascular tubules; but some do not such as colon cancer HCT116 cells. Furthermore, this vascular phenotype is dependent on cell numbers plated on the Matrigel. Therefore, this assay may serve as powerful utility to screen the vascular potential of a variety of cell types including vascular cells, tumor cells as well as other cells.

A tube formation assay is used to evaluate vascular activity of tumor cells.

Un Matrigel-Based Formazione Assay tubo per valutare l&#39;attività vascolare delle cellule tumorali

Over the past several decades, a tube formation assay using growth factor-reduced Matrigel has been typically employed to demonstrate the angiogenic ...

Efficient Production and Purification of Recombinant Murine Kindlin-3 from Insect Cells for Biophysical Studies

Kindlins are essential coactivators, with talin, of the cell surface receptors&#160;integrins and also participate in integrin outside-in signalling, and the control of gene transcription in the cell nucleus. The kindlins are ~75 kDa multidomain proteins and bind to an NPxY motif and upstream T/S cluster of the integrin &#946;-subunit cytoplasmic tail. The hematopoietically-important kindlin isoform, kindlin-3, is critical for platelet aggregation during thrombus formation, leukocyte rolling in response to infection and inflammation and osteoclast podocyte formation in bone resorption. Kindlin-3&#39;s role in these processes has resulted in extensive cellular and physiological studies. However, there is a need for an efficient method of acquiring high quality milligram quantities of the protein for further studies. We have developed a protocol, here described, for the efficient expression and purification of recombinant murine kindlin-3 by use of a baculovirus-driven expression system in Sf9 cells yielding sufficient amounts of high purity full-length protein to allow its biophysical characterization. The same approach could be taken in the study of the other mammalian kindlin isoforms.

Kindlins are fundamental to cell adhesion through integrins but studies of them have been hampered by the difficulty encountered in expressing them recombinantly in bacterial hosts. We describe here methods for their efficient production in baculovirus-infected insect cells.

Produzione efficiente e purificazione di ricombinante murino kindlina-3 da cellule di insetto per Biofisica Studies

Kindlins are essential coactivators, with talin, of the cell surface receptors&#160;integrins and also participate in integrin outside-in signalling, and ...

Generation of Myospheres From hESCs by Epigenetic Reprogramming

Generation of a homogeneous and abundant population of skeletal muscle cells from human embryonic stem cells (hESCs) is a requirement for cell-based therapies and for a "disease in a dish" model of human neuromuscular diseases. Major hurdles, such as low abundance and heterogeneity of the population of interest, as well as a lack of protocols for the formation of three-dimensional contractile structures, have limited the applications of stem cells for neuromuscular disorders. We have designed a protocol that overcomes these limits by ectopic introduction of defined factors in hESCs - the muscle determination factor MyoD and SWI/SNF chromatin remodeling complex component BAF60C - that are able to reprogram hESCs into skeletal muscle cells. Here we describe the protocol established to generate hESC-derived myoblasts and promote their clustering into tridimensional miniaturized structures (myospheres) that functionally mimic miniaturized skeletal muscles7.

Here, we describe a protocol based on epigenetic reprogramming of human embryonic stem cells (hESCs) toward generating a homogeneous population of skeletal muscle progenitors that under permissive culture conditions form three-dimensional clusters of contractile myofibers (myospheres), which recapitulate biological features of human skeletal muscles.

Generazione di Myospheres Da hESCs di epigenetica Riprogrammazione

Generation of a homogeneous and abundant population of skeletal muscle cells from human embryonic stem cells (hESCs) is a requirement for cell-based ...

Magnetic-Activated Cell Sorting Strategies to Isolate and Purify Synovial Fluid-Derived Mesenchymal Stem Cells from a Rabbit Model

Mesenchymal stem cells (MSCs) are the main cell source for cell-based therapy. MSCs from articular cavity synovial fluid could potentially be used for cartilage tissue engineering. MSCs from synovial fluid (SF-MSCs) have been considered promising candidates for articular regeneration, and their potential therapeutic benefit has made them an important research topic of late. SF-MSCs from the knee cavity of the New Zealand white rabbit can be employed as an optimized translational model to assess human regenerative medicine. By means of CD90-based magnetic activated cell sorting (MACS) technologies, this protocol successfully obtains rabbit SF-MSCs (rbSF-MSCs) from this rabbit model and further fully demonstrates the MSC phenotype of these cells by inducing them to differentiate to osteoblasts, adipocytes, and chondrocytes. Therefore, this approach can be applied in cell biology research and tissue engineering using simple equipment and procedures.

This article presents a simple and economic protocol for the straightforward isolation and purification of mesenchymal stem cells from New Zealand white rabbit synovial fluid.

Magnetico-Activated Cell Sorting strategie per isolare e purificare Synovial cellule staminali mesenchimali liquido derivato da un modello di coniglio

Mesenchymal stem cells (MSCs) are the main cell source for cell-based therapy. MSCs from articular cavity synovial fluid could potentially be used for ...