Teitellラボでヒト胚性幹細胞研究は再生医療のためのカリフォルニア工科大学（CIRM）種子助成RS1 - 00313でサポートされています。我々は、UCLA、特に博士Amanderクラーク博士ジェロームザック、そして我々の研究の支援のためのUCLAのブロード研究所の幹細胞の中核施設のメンバーで、再生医療と幹細胞研究のブロードセンターのメンバーに感謝。

ヒトES細胞の培養日常のメンテナンス<ol><li>ヒトES細胞の培養培地は、すべて24時間を変更する必要があります。 4℃で保存したESメディアストックボトルから、（6ウェルプレートあたり〜20ml）を必要な液量を、50ミリリットルファルコンチューブの場所、そして℃の水浴中で37に暖かいを取り出します。メディアが暖めされると、10ng/mlの最終濃度に4℃で保存されているbFGFを° Cを追加。 4でのbFGFの株式を元に戻します° C使用後はすぐに！ </li><li>すべてが、メディアの500μL〜に6 - ウェルプレートから取り外します。除去のための破片を中断するスワール培養皿に確認してください。ヒトES細胞培養培地中のbFGFは徹底的に混合され、6ウェルプレートの各ウェルに戻って新鮮な培地の3ミリリットルを追加してください。バックインキュベーター内でプレートを置く。 </li></ol>マトリゲル上のMEFから分裂ヒトES細胞通常のMEF上でヒトES細胞のコンフルエント6ウェルプレートは6ウェルプレートにウェルは4-5日の分割後に再び合流になると、マトリゲルに1:3 1:2に分割することができます。 <ol><li>マトリゲル、MEF -馴化培地（CM）に分割すると、ヒトES細胞は多能性を維持するために使用されている場合。 MEF -馴化培地は、事前に行われます。初日には、1.5 × 10 7γ線照射したMEFのはT75フラスコ中に播種されています。二日目は、MEFのは、室温1 × PBS、pH7.4で一回洗浄し、その後、5ng/mlのbFGFを添加したESメディアの15ミリリットルをフラスコに添加される。 （注：MEFのは、小さいまたは大きなフラスコに播種することができますが、細胞密度とESのメディアのボリュームの比率を一定にする必要があります。）フラスコをさらに24時間、37℃でインキュベートする。三日目に、CMは5ng/mlのbFGFを添加した新鮮なESのメディアの15ミリリットルを採取し、置換されます。収集されたCMは、4℃で保存されていますMEFのいずれかのめっきからMEF -馴化培地は、15 × 7 = 105ミリリットルを生成するための連続した​​7日間にわたって収穫されています。 7日後に、すべてのCMの画分を一緒にされ、滅菌濾過し、分注し、-20℃で保存のように調製したCMのメディアが保存され、1ヶ月に使用することができます。 </li><li>ヒトES細胞の分裂前のある日は、℃で一晩解凍する4でエッペンドルフチュー​​ブにマトリゲルのアリコートを入れて（一方のアリコートは、マトリゲルの76.2mg含まれている、とこれは1 6ウェルプレートに必要な量です）。分割の日に、1つの6 - wellプレートのために解凍マトリゲルの1バイアルを取る、氷の上に冷たいDMEM/F12メディアのバイアルと6ミリリットルを入れて。 DMEM/F12メディアにマトリゲルを移し、よく混ぜる。 6ウェルプレートの各ウェルに解決策の1ミリリットルを追加。渦巻板は、表面にマトリゲルを配布し、分割ヒトES細胞を前に、少なくとも1時間室温でマトリゲルで覆わ​​れたプレートをインキュベートする。 </li><li> MEFの上でヒトES細胞を1 × PBS、pH7.4で一回洗浄する。暖かいコラゲナーゼIV（1mg/ml）のその後1ミリリットルを6ウェルプレートの各ウェルに添加し、その後、プレートを37℃でインキュベートされた℃で5〜10分間。 </li><li>各ウェルにbFGFをせずにESのメディアの1ミリリットルを追加。プレートから幹細胞を爆破する1ミリリットルピペットを使用してください。 50ミリリットルファルコンチューブにヒトESと死者MEFの塊を含むすべてのメディアを収集する。 MEFのは、上清中に浮遊したままでhESCの塊がチューブの底にペレットを形成するように細胞の大きな塊が5〜10分間のために解決しましょう​​。上清を捨て、5分間200グラムで、室温で遠心分離に続いて、bFGFを、欠けているESのメディアを使用してヒトES細胞ペレットを再懸濁することにより洗浄。 </li><li>プレートマトリゲルプレート上の幹細胞をするには、まず室温DMEM/F12（ウェル当たり1ミリリットル）とウェルあたり10ng/mlのbFGFを添加したCMの2.5ミリリットルを加えるとマトリゲルプレートを洗浄する。塊のサイズが均一で小さくなるまで上下に数回を10ng/mlのbFGFを添加したCM、ピペット細胞懸濁液の適切な量のペレットを再懸濁します。マトリゲルプレートのウェルあたり0.5ミリリットルでのアリコートはサスペンション。マトリゲル上でコロニーの密度がMEFの上に通常の分割により、コロニーの密度より高いことに注意してください。 37℃の組織培養インキュベーターでプレートを置きます。 </li><li>マトリゲル上でヒトES細胞を維持するために、10ng/mlのbFGFを添加したCMのメディアが4〜5日までの毎24時間に変更されます。 </li></ol>

<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.">Feeder-free growth of undifferentiated human embryonic stem cells.</a> Nature Biotechnology. 19, 971-974 (2001).</li></ol>

このビデオでは、どのように通過ヒトESへMEFプレートからのフィーダー細胞を含まないマトリゲルプレートに示しています。マトリゲル上でコロニーの密度がMEFの上に通常の分割により、コロニーの密度より高いことに注意してください。このようなOCT - 4およびSSEA - 4、などのhESCの多能性マーカー、のための免疫蛍光染色し、顕微鏡またはフローサイトメトリーは、フィーダーを含まない培養条件で未分化?...

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
		
		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<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>
<tr>
<td>FBS</td>
<td>Reagent</td>
<td>Clontech</td>
<td>631107</td>
<td>&nbsp;</td>
<tr>
<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>
<tr>
<td>bFGF</td>
<td>Reagent</td>
<td>R&D Systems</td>
<td>233-FB-025</td>
<td>&nbsp;</td>
<tr>
<td>Collagenase IV</td>
<td>Reagent</td>
<td>Gibco</td>
<td>17104-019</td>
<td>&nbsp;</td>
<tr>
<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>
<tr>
<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>
		</div>
			<div>
					</div>

from mefs to matrigel 2: splitting hescs from mefs onto matrigel

このビデオでは、どのようにMEFプレートからのフィーダー細胞を含まないマトリゲルプレートへ継代ヒトESへのマウス胚性線維芽細胞（MEF）をフィーダー細胞上のヒト胚性幹細胞（ヒトES細胞）、成長する方法を示します。

Watch this Scientific Journal Video about From MEFs to Matrigel 2: Splitting hESCs from MEFs onto Matrigel at JoVE.com

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

このビデオでは、フィーダー細胞を含まない条件とどのように継続的にフィーダー細胞を含まない条件で継代ヒトESにおけるヒト胚性幹細胞（ヒトES）の成長を維持する方法を示します。免疫蛍光顕微鏡法でフィーダー細胞を含まない条件で増殖させた多能性hESCの確認にも示されている。 3パート2。

マトリゲル上のMEFから分割ヒトES細胞：MEFのからマトリゲル2〜

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

from-mefs-to-matrigel-2-splitting-hescs-from-mefs-onto-matrigel

Research

JoVE Journal

Biology

11.4K ビュー.  University of California, Los Angeles. このビデオでは、フィーダー細胞を含まない条件とどのように継続的にフィーダー細胞を含まない条件で継代ヒトESにおけるヒト胚性幹細胞（ヒトES）の成長を維持する方法を示します。免疫蛍光顕微鏡法でフィーダー細胞を含まない条件で増殖させた多能性hESCの確認にも示されている。 3パート2。

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

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.

MEFの存在下で継代ヒトES細胞：MEFをから私をマトリゲルする

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

生物学

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.

ソックス- 2の強制発現によってMEFSからiPS細胞を生成し、OCT - 4、c - Mycの、と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 3: Passaging hESCs from Matrigel onto 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 hESCs in feeder cell-free conditions. Confirmation of hESC pluripotency grown in feeder cell-free conditions by immunofluorescence microscopy is also demonstrated.

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 3 of 3.

マトリゲル上にマトリゲルからの継代ヒトES細胞：MEFのからマトリゲル3〜

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

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.

キネシンパワード分子シャトルバスへのロード貨物

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.

ワームの研究室の紹介：培養ワームから変異へ

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.

腫瘍細胞のVasculogenic活性を評価するためにマトリゲルベースの​​チューブ形成アッセイ

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

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.

エピジェネティックリプログラミングによるヒトES細胞からMyospheresの生成

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

Xenopus laevis as a Model to Identify Translation Impairment

Protein synthesis is a fundamental process to gene expression impacting diverse biological processes notably adaptation to environmental conditions. The initiation step, which involves the assembly of the ribosomal subunits at the mRNA initiation codon, involved initiation factor including eIF4G1. Defects in this rate limiting step of translation are linked to diverse disorders. To study the potential consequences of such deregulations, Xenopus laevis oocytes constitute an attractive model with high degrees of conservation of essential cellular and molecular mechanisms with human. In addition, during meiotic maturation, oocytes are transcriptionally repressed and all necessary proteins are translated from preexisting, maternally derived mRNAs. This inexpensive model enables exogenous mRNA to become perfectly integrated with an effective translation. Here is described a protocol for assessing translation with a factor of interest (here eIF4G1) using stored maternal mRNA that are the first to be polyadenylated and translated during oocyte maturation as a physiological readout. At first, mRNA synthetized by in vitro transcription of plasmids of interest (here eIF4G1) are injected in oocytes and kinetics of oocyte maturation by Germinal Vesicle Breakdown detection is determined. The studied maternal mRNA target is the serine/threonine-protein-kinase mos. Its polyadenylation and its subsequent translation are investigated together with the expression and phosphorylation of proteins of the mos signaling cascade involved in oocyte maturation. Variations of the current protocol to put forward translational defects are also proposed to emphasize its general applicability. In light of emerging evidence that aberrant protein synthesis may be involved in the pathogenesis of neurological disorders, such a model provides the opportunity to easily assess this impairment and identify new targets.

Xenopus laevis as a Model to Identify Translation Impairment

Protein synthesis control occurs mainly at the translation initiation step, deficiencies in which are linked to diverse disorders. To better understand their etiology, we described here a protocol using Xenopus laevis oocytes assessing the translation of mos transcript in the presence of a mutant of translation initiation factor eIF4G1.

アフリカツメガエルは、翻訳減損を識別するためのモデルとして、 アフリカツメガエル

Protein synthesis is a fundamental process to gene expression impacting diverse biological processes notably adaptation to environmental conditions. The ...

Using Caco-2 Cells to Study Lipid Transport by the Intestine

Studies of dietary fat absorption are generally conducted by using an animal model equipped with a lymph cannula. Although this animal model is widely accepted as the in vivo model of dietary fat absorption, the surgical techniques involved are challenging and expensive. Genetic manipulation of the animal model is also costly and time consuming. The alternative in vitro model is arguably more affordable, timesaving, and less challenging. Importantly, the in vitro model allows investigators to examine the enterocytes as an isolated system, reducing the complexity inherent in the whole organism model. This paper describes how human colon carcinoma cells (Caco-2) can serve as an in vitro model to study the enterocyte transport of lipids, and lipid-soluble drugs and vitamins. It explains the proper maintenance of Caco-2 cells and the preparation of their lipid mixture; and it further discusses the valuable option of using the permeable membrane system. Since differentiated Caco-2 cells are polarized, the main advantage of using the permeable membrane system is that it separates the apical from the basolateral compartment. Consequently, the lipid mixture can be added to the apical compartment while the lipoproteins can be collected from the basolateral compartment. In addition, the effectiveness of the lentivirus expression system in upregulating gene expression in Caco-2 cells is discussed. Lastly, this paper describes how to confirm the successful isolation of intestinal lipoproteins by transmission electron microscopy (TEM).

Caco-2 cells can serve as an in vitro model to study the enterocyte transport of lipids, and lipid-soluble drugs/vitamins. The permeable membrane system separates the apical from the basolateral compartment, while the lentivirus expression system offers an effective gene overexpression method. The isolation of lipoproteins is confirmed by TEM.

腸によって脂質輸送を研究するためのCaco-2細胞を用いました

Studies of dietary fat absorption are generally conducted by using an animal model equipped with a lymph cannula. Although this animal model is widely ...

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.

磁気活性化細胞を分離し、滑膜液由来間葉系幹細胞が家兎モデルからの浄化戦略を並べ替え

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

Methods Article

マトリゲル上のMEFから分割ヒトES細胞：MEFのからマトリゲル2〜