Name: isolation and characterization of mouse antral oocytes based on nucleolar chromatin organization
Uploaded: 2016-01-07T12:00:01
Description: Watch this Scientific Journal Video about Isolation and Characterization of Mouse Antral Oocytes Based on Nucleolar Chromatin Organization at JoVE.com

M.M. and C.A.R. acknowledge the financial support of the Ministero della Salute, Ricerca Finalizzata/giovani ricercatori anno 2009 of the Fondazione IRCCS Ospedale San Matteo, Pavia (I). M.M and C.A.R. wish to thank Marianna Longo for helping with the images preparation.

该协议是按照欧洲的指导原则（EU二千〇十分之六十三）和保护用于科学研究的动物意大利（2014分之26）的法律进行。颈椎脱位安乐死用于卵巢隔离，它是由专家进行和训练有素的已批准的方案涉及本次研究中列出的个人。 1.动物<ol><li>保持成年3至6周大的雌性小鼠中的房间温度和湿度受控（具有12L的阶段：12D，并自由采食）。 </li><li>腹腔注入小鼠2.5 IU孕马血清促性腺激素（PMSG），?...

<ol>
	<li>Parfenov, V., Potchukalina, G., Dudina, L., Kostyuchek, D., Gruzova, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Human+antral+follicles:+oocyte+nucleus+and+the+karyosphere+formation+(electron+microscopic+and+autoradiographic+data).">Human antral follicles: oocyte nucleus and the karyosphere formation (electron microscopic and autoradiographic data).</a> Gamete Res. 22 (2), 219-231 (1989).</li><li>Anderiesz, C., Ferraretti, A. P., Magli, C., Fiorentino, A., Fortini, D., Gianaroli, L., Jones, G. M., Trounson, A. O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+recombinant+human+gonadotropins+on+human,+bovine+and+murine+oocyte+meiosis,+fertilization+and+embryonic+development+in+vitro.">Effect of recombinant human gonadotropins on human, bovine and murine oocyte meiosis, fertilization and embryonic development in vitro.</a> Human Reprod. 15 (5), 1140-1148 (2000).</li><li>Mattson, B. A., Albertini, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Oogenesis:+Chromatin+and+microtubule+dynamics+during+meiotic+prophase.">Oogenesis: Chromatin and microtubule dynamics during meiotic prophase.</a> Mol. Reprod. Dev. 25 (4), 374-383 (1990).</li><li>Debey, P., Szollosi, M. S., Szollosi, D., Vautier, D., Girousse, A., Besomber, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Competent+mouse+oocytes+isolated+from+antral+follicles+exhibit+different+chromatin+organization+and+follow+different+maturation+dynamics.">Competent mouse oocytes isolated from antral follicles exhibit different chromatin organization and follow different maturation dynamics.</a> Mol. Reprod. Dev. 36 (1), 59-74 (1993).</li><li>Zuccotti, M., Piccinelli, A., Giorgi Rossi, P., Garagna, S., Redi, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chromatin+organisation+during+mouse+oocyte+growth.">Chromatin organisation during mouse oocyte growth.</a> Mol. Reprod. Dev. 41 (1-2), 479-485 (1995).</li><li>Wu, Y. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Selection+of+oocytes+for+in+vitro+maturation+by+brilliant+cresyl+blue+staining:+a+study+using+the+mouse+model.">Selection of oocytes for in vitro maturation by brilliant cresyl blue staining: a study using the mouse model.</a> Cell Res. 17, 722-731 (2007).</li><li>Opiela, Y., K&#261;tska-Ksi&#261;&#380;kiewicz, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+utility+of+Brilliant+Cresyl+Blue+(BCB)+staining+of+mammalian+oocytes+used+for+in+vitro+embryo+production+(IVP).">The utility of Brilliant Cresyl Blue (BCB) staining of mammalian oocytes used for in vitro embryo production (IVP).</a> Reproductive Biol. 13, 177-183 (2013).</li><li>Labrecque, R., Sirard, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+study+of+mammalian+oocyte+competence+by+transcriptome+analysis:+progress+and+challenges.">The study of mammalian oocyte competence by transcriptome analysis: progress and challenges.</a> Mol. Human Reprod. 20 (2), 103-116 (2014).</li><li>Monti, M., Zanoni, M., Calligaro, A., Ko, M. S., Mauri, P. L., Redi, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Developmental+arrest+and+mouse+antral+Not-Surrouded+Nucleolus+oocyte.">Developmental arrest and mouse antral Not-Surrouded Nucleolus oocyte.</a> Biol. Reprod. 88 (1), 1-7 (2013).</li><li>Yurttas, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+for+PADI6+and+the+cytoplasmic+lattices+in+ribosomal+storage+in+oocytes+and+translational+control+in+the+early+mouse+embryo.">Role for PADI6 and the cytoplasmic lattices in ribosomal storage in oocytes and translational control in the early mouse embryo.</a> Development. 135 (15), 2627-2636 (2008).</li><li>Li, L., Baibakov, B., Dean, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+subcortical+maternal+complex+essential+for+preimplantation+mouse+embryogenesis.">A subcortical maternal complex essential for preimplantation mouse embryogenesis.</a> Dev. Cell. 15 (3), 416-425 (2008).</li><li>Ami, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=FT-IR+spectra+signatures+of+mouse+antral+oocytes:+molecular+markers+of+oocyte+maturation+and+developmental+competence.">FT-IR spectra signatures of mouse antral oocytes: molecular markers of oocyte maturation and developmental competence.</a> Biochim. Biophys. Acta. 1813 (6), 1220-1222 (2011).</li><li>Fulton, B. P., Whittingam, D. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Activation+of+mammalian+oocytes+by+intercellular+injection+of+calcium.">Activation of mammalian oocytes by intercellular injection of calcium.</a> Nature. 273 (5658), 149-151 (1978).</li><li>Luttmer, S. J., Longo, F. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Examination+of+living+and+fixed+gametes+and+early+embryos+stained+with+supravital+fluorochromes+(Hoechst+33342+and+3,3&#8242;-dihexyloxacarbocyanine+iodide).">Examination of living and fixed gametes and early embryos stained with supravital fluorochromes (Hoechst 33342 and 3,3&#8242;-dihexyloxacarbocyanine iodide).</a> Gamete Res. 15 (3), 267-283 (1986).</li><li>Monti, M., Redi, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+biopolitics+of+frozen+embryos.">The biopolitics of frozen embryos.</a> Int. J. Dev. Biol. 55, 243-247 (2011).</li></ol>

本协议描述用来分离和分类鼠标胃窦GV卵母细胞的方法。有强调，除少数例外，没有特别的关键步骤。第一：此过程应当尽可能快地进行，以：1）保持卵母细胞的活力和b）避免在使用的培养基的pH变化。第二：卵母细胞应该是简要地兴奋（5-10秒），以Hoechst33342染色，以避免染色质损害和卵母细胞的随后死亡，特别是如果IVM和体外受精是以下步骤。迄今为止，这是SN和NSN小鼠卵母细胞胃窦排序的最?...

胃窦从卵巢的窦室分离的完全的卵母细胞生长（GV，生发泡）通常用于不同的目的，诸如，例如，在体外成熟直至中期II阶段背后的分子和细胞机制的研究。 尽管他们漂亮的外观最有腔卵母细胞，但不是所有的，都能够完成减数分裂并达到囊胚阶段;事实上，在许多哺乳动物物种，包括人类1,2，其中的大约30％阻止其发展在2-细胞阶段，如果发生受精3-5。迄今为止，只有少数参数用于卵母细胞能够维持从那些无法做到的胚胎发育之间进行区分。 例如，甲酚蓝染色（BCB）是一个有效的方法，以基于葡萄糖-6-磷酸脱氢酶活性的卵母细胞进行排序尽管这种分选方法的效用与BCB +或BCB-染色仍然依赖于实验室6-8。 另一成熟方法驻留在他们的染色质组织：如果沾上任何DNA嵌入染料（如Hoechst33342染色），胃窦的卵母细胞的70％表现出围绕核仁染料正环和被称为环绕核仁（SN）而剩余的30％的显示出更多的斑点积极的信号，被称为不环绕核仁（NSN）3-5。最近我们发现，如果没有细胞质晶格9（的CPL，重要的存储位点在两个哺乳动物卵母细胞和胚胎母体衍生mRNA和核糖体）的10和下调脑膜（必不可少的CPL形成11），加上存在在其胞质9,12脂滴，可以是有关的卵母细胞诺西无法继续进行的2细胞期其他原因。 不幸的是，很少有技术可应用于排序胃窦的SN和NSN和卵母细胞，因为这个原因，较少创伤的方法的开发（没有核染色，固定程序或操纵与嘴移液器）可能成为非常重要的是增加人和动物胚胎发育的速率。 在本文中，我们详细介绍了简单快捷的协议，用于隔离的广告排序SN和雌性小鼠NSN窦卵母细胞，它是给所有有兴趣的女性配子，卵母细胞成熟和胚胎发育的研究中，科学家。

<table>
	<tbody>
		<tr>
			<td>PMSG</td>
			<td>Sigma</td>
			<td>G4527</td>
			<td></td>
		</tr>
		<tr>
			<td>EmbrioMax M2</td>
			<td>Millipore</td>
			<td>MR-015-PD</td>
			<td></td>
		</tr>
		<tr>
			<td>Hoechst33342</td>
			<td>Thermo Scientific</td>
			<td>62249</td>
			<td></td>
		</tr>
		<tr>
			<td>Mineral Oil</td>
			<td>Sigma</td>
			<td>M8410</td>
			<td></td>
		</tr>
		<tr>
			<td>Cell Culture Dish 35mmx10mm</td>
			<td>Corning</td>
			<td>430165</td>
			<td></td>
		</tr>
		<tr>
			<td>&#181;-Dish 35mm, high glass bottom</td>
			<td>Ibidi</td>
			<td>81158</td>
			<td></td>
		</tr>
		<tr>
			<td>Pipette Pasteur Borosilicate</td>
			<td>Corning</td>
			<td>7095D-9</td>
			<td></td>
		</tr>
		<tr>
			<td>Aspirator tube assemblies for calibrated micropillary pipettes</td>
			<td>Sigma</td>
			<td>A5177</td>
			<td></td>
		</tr>
	</tbody>
</table>

isolation and characterization of mouse antral oocytes based on nucleolar chromatin organization

This protocol describes a simple and quick method to isolate and characterize mouse antral GV (Germinal Vesicle) oocytes as able (SN, Surrounded Nucleolus) or unable (NSN, Not Surrounded Nucleolus) to develop to the blastocyst stage after in vitro maturation (IVM) and in vitro fertilization (IVF). It makes use of Hoeschst33342 (or any other DNA intercalating dye) able to bind to the heterochromatin of the nucleolus showing a ring in the SN oocytes or not, like in the NSN oocytes. This represents the easiest and quickest way to sort both antral oocytes that can be eventually used for IVM or IVF procedures. 
Briefly, the protocol consists of the following steps: hormone injection to stimulate follicular growth; isolation of the oocytes at the GV stage from the antral compartment by puncturing the ovary with a sterile needle; preparation of thin glass pipettes for mouth pipetting of the oocytes; sorting of the oocytes with Hoechst33342 prepared at a supravital concentration; IVM, IVF or any other molecular/cellular analysis.
Unfortunately there are still few evidences to sort SN and NSN oocytes using less invasive techniques. If and once they will be identified, they could be potentially applied to human assisted reproductive technologies, although with several aspects that should be modified. To date, this technique has potential implications to dramatically increase IVM and IVF successful procedures in both endangered and species with economic interest.

下面的图片展示用于隔离窦卵母细胞来自小鼠卵巢，用Hoechst33342染色的方式从移液器准备到卵母细胞“排序启动方法。这种方法相当简单，并且可以在装有CO 2培养箱，立体显微镜，配有正确的过滤器，用于观察Hoechst33342染色的荧光显微镜任何实验室中进行图1示出了移液管制备的初始步骤：作为玻璃开始熔化并变软，吸移管的两端必须被拉开，并在同?...

Watch this Scientific Journal Video about Isolation and Characterization of Mouse Antral Oocytes Based on Nucleolar Chromatin Organization at JoVE.com

Isolation and Characterization of Mouse Antral Oocytes Based on Nucleolar Chromatin Organization

在这里，我们提出了一个协议的基础上核仁组织小鼠卵母细胞胃窦表征。

基于核仁染色质组织分离鼠标窦卵母细胞与表征

This protocol describes a simple and quick method to isolate and characterize mouse antral GV (Germinal Vesicle) oocytes as able (SN, Surrounded ...

Research

JoVE Journal

Developmental Biology

Isolation and Quantitative Immunocytochemical Characterization of Primary Myogenic Cells and Fibroblasts from Human Skeletal Muscle

从人类骨骼肌成肌原细胞和成纤维细胞的分离和定量免疫细胞化学表征

The repair and regeneration of skeletal muscle requires the action of satellite cells, which are the resident muscle stem cells. These can be isolated ...

科研

发育生物学

Isolation and Characterization of Satellite Cells from Rat Head Branchiomeric Muscles

隔离和卫星细胞的表征鼠头Branchiomeric肌肉

Fibrosis and defective muscle regeneration can hamper the functional recovery of the soft palate muscles after cleft palate repair. This causes persistent ...

Isolation and Characterization of Single Cells from Zebrafish Embryos

分离和斑马鱼胚胎单细胞的表征

The zebrafish (Danio rerio) is a powerful model organism to study vertebrate development. Though many aspects of zebrafish embryonic development have been ...

Isolation and Characterization of Mesenchymal Stromal Cells from Human Umbilical Cord and Fetal Placenta

从人类脐带和胎盘胎儿分离和鉴定间充质干细胞

The human umbilical cord (UC) and placenta are non-invasive, primitive and abundant sources of mesenchymal stromal cells (MSCs) that have increasingly ...

A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

三维高频超声对小鼠早期妊娠特征的新应用

High-frequency ultrasonography (HFUS) is a common method to non-invasively monitor the real-time development of the human fetus in utero. The mouse is ...

A Neural Network-Based Identification of Developmentally Competent or Incompetent Mouse Fully-Grown Oocytes

基于神经网络的发育能力或不称职小鼠全生长卵母细胞的识别

Infertility clinics would benefit from the ability to select developmentally competent vs. incompetent oocytes using non-invasive procedures, thus ...

Isolation and Characterization of Human Umbilical Cord-derived Mesenchymal Stem Cells from Preterm and Term Infants

早产儿和足月婴儿脐带源性间充质干细胞的分离与鉴定

Mesenchymal stem cells (MSCs) have considerable therapeutic potential and attract increasing interest in the biomedical field. MSCs are originally ...

Differentiation and Characterization of Neural Progenitors and Neurons from Mouse Embryonic Stem Cells

小鼠胚胎干细胞中神经祖细胞和神经元的分化与表征

We describe the step-by-step procedure for culturing and differentiating mouse embryonic stem cells into neuronal lineages, followed by a series of assays ...

Minimum Volume Vitrification of Immature Feline Oocytes

未成熟费林卵母细胞的最小体积玻璃化

In wild animals&#8217; conservation programs, gamete banking is crucial to safeguard genetic resources of valuable individuals and rare species and to ...

In Vitro Culture Strategy for Oocytes from Early Antral Follicle in Cattle

牛早期蚁卵泡卵母细胞的体外培养策略

The limited reserve of mature, fertilizable oocytes represents a major barrier for the success of assisted reproduction in mammals. Considering that ...