Teitell 연구실에서 인간 배아 줄기 세포 연구는 재생 의료에 대한 캘리포니아 연구소 (CIRM) 씨앗 부여 RS1 - 00313에 의해 지원됩니다. 우리는 UCLA, 특히 박사 Amander 클라크 박사 제롬 잭, 우리의 연구들의 지원 UCLA 브로드 연구소 줄기 세포 핵심 시설의 멤버에 재생 의료 및 줄기 세포 연구의 브로드 센터의 회원을 감사드립니다.

분리 인간의 배아 줄기 세포 (hESCs)는 마우스 배아 섬유아 세포의 (MEFs)에 도금 일반적으로 합류 hESC 접시는 특정 hESC 라인에 따라 1시 10분에서 1시 6분까지을 분할 수 있습니다. 분할 플레이트는 분리 후 다시 5-7일 합류하게 될 것입니다. <ol><li> 분할 이틀 전에는 0.1 % 젤라틴 용액을 사용하여 번호판을 아교 질로 만들다. 6 - 잘 접시, 야간 37 ° C 5 % CO 2 조직 문화 인큐베이터의 각 잘하고 품어 플레이트에 2ml를 추가합니다. </li><li> 플레이트 MEFs는 gelatinized 6 잘 접시에 하루는 분할에 hESCs를 계획하기 전에. (참고 : MEFs 3 일 전에 필요한 경우 많은처럼 도금 수 있습니다 ~ 3 일 후, MEFs은 아첨 확산 아웃 더 MEFs 수 hESCs뿐만 아니라 최신을​​ 유지 수 없습니다된다..) G - 반구 또는 mitomycin의 약병을 가지고 C는 37 ° C의 물 목욕 2 분 액체 질소와 해동에서, 5-6 X 10 6 세포를 포함, CF1 MEFs 치료. 50ml 팰컨 튜브에 따뜻한 MEF 문화 미디어로 한 번 세포를 씻고 따뜻한 MEF 문화 미디어의 마지막 볼륨 resuspend. 5-6 X 10 6 세포에서이 정도면 충분 접시 두 개 또는 세 6 - 잘 접시입니다. </li><li> MEFs 세차되고 있지만, gelatinized 접시를 꺼내 우물에서 모든 솔루션을 제거하고 잘 따라 MEF 문화 미디어 2.5 ML를 추가합니다. </li><li> 각 우물에 최종 볼륨으로 3ml 달성하기 위해 잘 당 MEF 서스펜션의 0.5 ML를 추가합니다. MEFs가 고르게 정착 하룻밤 인큐베이터에 다시 분산과 장소 플레이트 있는지 확인합니다. </li><li> hESC 분리의 날, 1mg/ml의 &lt;이주 된 무균 collagenase IV 솔루션을 새로운 준비하거나 사용합니다. 당신은 분할하려는 hESC의 우물에서 모든 미디어를 제거 2ml 당 잘 따뜻한 1 × PBS, pH를 7.4로 한번 씻어 및 collagenase IV 솔루션 1ml 추가할 수 있습니다. 37 ° C 50-10 분 알을 품다. 인큐베이터 밖으로 6 잘 hESC 판을 가지고 각 잘하는 ES 미디어 (bFGF없이)의 1ml를 추가합니다. 1ml 피펫으로 각 우물에 솔루션을 사용하면 미디어를 빨아하고 접시의 줄기 세포를 날려. 각 물론이 약 5-10 반복하게됩니다. 그런 다음, 50ml 팔콘 튜브에 정지 hESCs를 전송합니다. 분할되는 모든 우물에 대해이 작업을 수행 하나 50ml 팔콘 튜브에 결합. 펠렛은 5 분 200g에 실온에서 hESCs와 bFGF를 부족한 ES 매체와 한 번 씻으십시오. </li><li> hESCs 세차되고 있지만, MEF의 접시를 꺼내 우물에서 모든 미디어를 제거하고 함께 한번 씻어 살균, 따뜻한 1 × PBS, 산도 7.4 다음 ES 미디어 2.5 ML (지금은 10 NG / ML bFGF와 보충) 당을 추가 음. </li><li> 10ng/ml bFGF와 함께 보충 ES 미디어의 적절한 볼륨에 pelleted hESCs을 Resuspend. (참고 :.. hESCs가 resuspended 때, 그들은 대략 균일한 콜로니 크기와 모양이어야합니다 resuspension 볼륨 분할 비율에 따라 달라집니다) 조심스럽게 피펫은 hESC 중지 위아래로 몇 번 식민지가 더 작고 균일하게하기 위해, 하지만 정말 하나의 셀 또는 아주 작은 식민지가 생성됩니다. 각 우물에 최종 볼륨으로 3 ML을 달성하기 위해 MEF 플레이트에 잘 당 hESC 서스펜션의 0.5 ML를 추가합니다. 시각 hESCs가 밤새 해결하기 위해 인큐베이터에 다시 접시를 삽입하기 전에 균일하게 분산되어 있는지 확인합니다. 도금 후, 일반적으로 그들의 특성 모양과 테두리 모양을 맡을 식민지에 대한 몇 일 소요됩니다. </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>

이 동영상은 마우스 배아 fibroblast (MEF) 피더 세포에 인간 배아 줄기 세포 (hESCs)를 성장하는 방법을 보여줍니다. 도금 전에 마지막 단계에서 hESCs가 resuspended 때, 그들은 약 균일 콜로니 크기와 모양을해야합니다. 조심스럽게 hESC의 정지를 피펫 아래 몇 번 식민지가 더 작고 균일하게하기 위해,하지만 너무 많은 단일 셀 또는 아주 작은 식민지 같은 월 hESC pluripotency 마커에 대한 generated.Immunofluorescence 염색법과 현미경...

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<td>Knockout Serum Replacer (KSR)</td>
<td>Reagent</td>
<td>Gibco</td>
<td>10828-028</td>
<td>&nbsp;</td>
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<td>DMEM/F12</td>
<td>Reagent</td>
<td>Gibco</td>
<td>11330-057</td>
<td>&nbsp;</td>
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<td> Non-essential Amino Acids</td>
<td>Reagent</td>
<td>Gibco</td>
<td>11140-050</td>
<td>&nbsp;</td>
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<td>GlutaMax </td>
<td>Reagent</td>
<td>Gibco</td>
<td>35050-061</td>
<td>&nbsp;</td>
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<td>Reagent</td>
<td>Gibco</td>
<td>11995-065</td>
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<td>Reagent</td>
<td>Clontech</td>
<td>631107</td>
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<td>Reagent</td>
<td>Gibco</td>
<td>25030-081</td>
<td>&nbsp;</td>
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<td>FITCI-conjugated antirabbit IgG</td>
<td>Reagent</td>
<td>Jackson ImmunoResearch Laboratories. Inc.</td>
<td>715-095-152</td>
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from mefs to matrigel i: passaging hescs in the presence of mefs

이 동영상은 마우스 배아 fibroblast (MEF) 피더 세포에 인간 배아 줄기 세포 (hESCs)를 성장하는 방법을 보여줍니다.

Watch this Scientific Journal Video about From MEFs to Matrigel I: Passaging hESCs in the Presence of MEFs at JoVE.com

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

이 동영상은 마우스 배아 fibroblast (MEF) 피더 세포에 인간 배아 줄기 세포 (hESCs)를 성장하는 방법을 보여줍니다. 3 부 1.

MEFs부터를 Matrigel하기 : MEFs의 면전에서 Passaging hESCs를

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

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12.6K 조회수.  University of California, Los Angeles. 이 동영상은 마우스 배아 fibroblast (MEF) 피더 세포에 인간 배아 줄기 세포 (hESCs)를 성장하는 방법을 보여줍니다. 3 부 1.

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

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.

인간 신경 줄기 세포를 Passaging

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

연구

생물학

Labeling hESCs and hMSCs with Iron Oxide Nanoparticles for Non-Invasive in vivo Tracking with MR Imaging

In recent years, stem cell research has led to a better understanding of developmental biology, various diseases and its potential impact on regenerative medicine. A non-invasive method to monitor the transplanted stem cells repeatedly in vivo would greatly enhance our ability to understand the mechanisms that control stem cell death and identify trophic factors and signaling pathways that improve stem cell engraftment. MR imaging has been proven to be an effective tool for the in vivo depiction of stem cells with near microscopic anatomical resolution. In order to detect stem cells with MR, the cells have to be labeled with cell specific MR contrast agents. For this purpose, iron oxide nanoparticles, such as superparamagnetic iron oxide particles (SPIO), are applied, because of their high sensitivity for cell detection and their excellent biocompatibility. SPIO particles are composed of an iron oxide core and a dextran, carboxydextran or starch coat, and function by creating local field inhomogeneities, that cause a decreased signal on T2-weighted MR images. This presentation will demonstrate techniques for labeling of stem cells with clinically applicable MR contrast agents for subsequent non-invasive in vivo tracking of the labeled cells with MR imaging.

For the evaluation of new stem cell therapies it is important to non-invasively track the injected cells in vivo. This video will show you how to label human mesenchymal and embryonic stem cells with iron oxide based contrast agents in vivo for subsequent MR imaging in vivo.

이런 산화물로 hESCs과 hMSCs을 라벨링하는 MR 영상과 생체내 추적 비침습에 대한 Nanoparticles

In recent years, stem cell research has led to a better understanding of developmental biology, various diseases and its potential impact on regenerative ...

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.

삭스 - 2의 강제 표현을 통해 MEFS에서 IPS 세포를 생성, 10 - 4, C - Myc, 그리고 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.

Matrigel에 MEFs에서 분리 hESCs : MEFs에서 Matrigel 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 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.

MEFs에서 Matrigel 3 : Matrigel에 Matrigel에서 Passaging hESCs

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

Purification of Mitochondria from Yeast Cells

Mitochondria are the main site of ATP production during aerobic metabolism in eukaryotic non-photosynthetic cells1. These complex organelles also play essential roles in apoptotic cell death2, cell survival3, mammalian development4, neuronal development and function4, intracellular signalling5, and longevity regulation6. Our understanding of these complex biological processes controlled by mitochondria relies on robust methods for assessing their morphology, their protein and lipid composition, the integrity of their DNA, and their numerous vital functions. The budding yeast Saccharomyces cerevisiae, a genetically and biochemically manipulable unicellular eukaryote with annotated genome and well-defined proteome, is a valuable model for studying the molecular and cellular mechanisms underlying essential biological functions of mitochondria. For these types of studies, it is crucial to have highly pure mitochondria. Here we present a detailed description of a rapid and effective method for purification of yeast mitochondria. This method enables the isolation of highly pure mitochondria that are essentially free of contamination by other organelles and retain their structural and functional integrity after their purification. Mitochondria purified by this method are suitable for cell-free reconstitution of essential mitochondrial processes and can be used for the analysis of mitochondrial structure and functions, mitochondrial proteome and lipidome, and mitochondrial DNA.

We describe a rapid and effective method for purification of mitochondria from the yeast Saccharomyces cerevisiae. This method enables the high-yield isolation of pure mitochondria that are essentially free of contamination by other organelles and retain their structural and functional integrity after their purification.

효모 세포 Mitochondria의 정화

Mitochondria are the main site of ATP production during aerobic metabolism in eukaryotic non-photosynthetic cells1. These complex organelles also play ...

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.

종양 세포의 Vasculogenic 활동을 평가 Matrigel 기반 튜브 형성 분석

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.

성적인 프로그램을 다시 만들에 의해 인간 배아 줄기 세포에서 Myospheres의 생성

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

Isolation of Mitochondria from Minimal Quantities of Mouse Skeletal Muscle for High Throughput Microplate Respiratory Measurements

Dysfunctional skeletal muscle mitochondria play a role in altered metabolism observed with aging, obesity and Type II diabetes. Mitochondrial respirometric assays from isolated mitochondrial preparations allow for the assessment of mitochondrial function, as well as determination of the mechanism(s) of action of drugs and proteins that modulate metabolism. Current isolation procedures often require large quantities of tissue to yield high quality mitochondria necessary for respirometric assays. The methods presented herein describe how high quality purified mitochondria (~ 450 &#181;g) can be isolated from minimal quantities (~75-100 mg) of mouse skeletal muscle for use in high throughput respiratory measurements. We determined that our isolation method yields 92.5&#177; 2.0% intact mitochondria by measuring citrate synthase activity spectrophotometrically. In addition, Western blot analysis in isolated mitochondria resulted in the faint expression of the cytosolic protein, GAPDH, and the robust expression of the mitochondrial protein, COXIV. The absence of a prominent GAPDH band in the isolated mitochondria is indicative of little contamination from non-mitochondrial sources during the isolation procedure. Most importantly, the measurement of O2 consumption rate with micro-plate based technology and determining the respiratory control ratio (RCR) for coupled respirometric assays shows highly coupled (RCR; &#62;6 for all assays) and functional mitochondria. In conclusion, the addition of a separate mincing step and significantly reducing motor driven homogenization speed of a previously reported method has allowed the isolation of high quality and purified mitochondria from smaller quantities of mouse skeletal muscle that results in highly coupled mitochondria that respire with high function during microplate based respirometirc assays.

Here, we present a modification of a previously reported method that allows for the isolation of high quality and purified mitochondria from smaller quantities of mouse skeletal muscle. This procedure results in highly coupled mitochondria that respire with high function during microplate based respirometirc assays.

높은 처리량 마이크로 호흡 측정을위한 마우스 골격근의 최소 수량에서 미토콘드리아의 분리

Dysfunctional skeletal muscle mitochondria play a role in altered metabolism observed with aging, obesity and Type II diabetes. Mitochondrial ...

High-resolution Respirometry to Measure Mitochondrial Function of Intact Beta Cells in the Presence of Natural Compounds

High-resolution respirometry allows for the measurement of oxygen consumption of isolated mitochondria, cells and tissues. Beta cells play a critical role in the body by controlling blood glucose levels through insulin secretion in response to elevated glucose concentrations. Insulin secretion is controlled by glucose metabolism and mitochondrial respiration. Therefore, measuring intact beta cell respiration is essential to be able to improve beta cell function as a treatment for diabetes. Using intact 832/13 INS-1 derived beta cells we can measure the effect of increasing glucose concentration on cellular respiration. This protocol allows us to measure beta cell respiration in the presence or absence of various compounds, allowing one to determine the effect of given compounds on intact cell respiration. Here we demonstrate the effect of two naturally occurring compounds, monomeric epicatechin and curcumin, on beta cell respiration under the presence of low (2.5 mM) or high glucose (16.7 mM) conditions. This technique can be used to determine the effect of various compounds on intact beta cell respiration in the presence of differing glucose concentrations.

The goal of this protocol is to measure the effect of glucose-mediated changes to mitochondrial respiration in the presence of natural compounds on intact 832/13 beta cells using high-resolution respirometry.

고해상도 Respirometry 천연 화합물 존재 그대로 베타 세포의 미토 콘 드리 아 기능을 측정 하

High-resolution respirometry allows for the measurement of oxygen consumption of isolated mitochondria, cells and tissues. Beta cells play a critical role ...