Name: a device for performing cell migration/wound healing in a 96-well plate
Uploaded: 2017-03-07T15:00:00.000+00:00
Duration: 5 min 46 s
Description: Watch this Scientific Journal Video about A Device for Performing Cell Migration/Wound Healing in a 96-Well Plate at JoVE.com

Yazarlar bu wounder prototipini yapımında Sayın Tam Po Leung, Bay Wong Chi Kin ve teknik becerileri Fen Fakültesi Atölyesi teknik personel, Hong Kong Baptist Üniversitesi ve danışmanlık teşekkür etmek istiyorum.

Wounder parçaları 1. Giriş (Şekil 1) <ol><li> eşit mesafelerde yaralama işaretçilerine sabitleyerek pim tutucu hazırlayın. pipet uçları tutun ve yukarı ve aşağı ayarlanabilir yaralama işaretçilerine hareket ettirerek ucu yüksekliğini ayarlayın. </li><li> 96-kuyu kültür plakaları farklı markalarda ayarlanabilir rehberlik-bar Fit ve yaralama alanı sabit bir pozisyonda olduğundan emin olun. </li><li> altıgen vidayı sıkarak ayarlanabilir yaralama pimini sabitleyin. iki ucunda altıgen başlı kapaklar sıkarak pozisyonda rehberlik-bar Fix. </li></ol> 2. Pin Tutucu genişliği Ayar (Şekil 2) <ol><li> M5 altıgen anahtar ile altıgen başlı kapaklarını gevşetin. </li><li> kılavuz çubukları 96 oyuklu bir kültür plakasına genişliği ile mükemmel uyum sağlar ve böylece çivili her iki taraf için halkalar ayarlama uygun sayıda yerleştirin. NOT: Corning ve Iwaki plakaları büyük halkalar 1 çift ve küçük halkalar 1 çift gerektirir. Şahin ve Nunc plates büyük halkalardan 1 çift gerekir. </li><li> altıgen soket kafası sıkın rehberlik çubuğu düzeltmek için kapaklar. </li></ol> 3. Rehberlik Barlar ayarlanması (Şekil 3) <ol><li> Steril 10-ul plastik pipet uçları ile yaralama pimlerini. </li><li> M5 altıgen anahtar ile altıgen başlı kapaklarını gevşetin. </li><li> wounder tutun ve 96 bölümlü kültür plakasının bir kolonuna yaralama işaretçilerini daldırın. </li><li> ancak kuyu alt dokunmak tüm ipuçları kadar yol gösterici çubukların yüksekliğini ayarlayın. </li><li> altıgen başlı kapaklarını sıkıştırın. wounder şimdi mükemmel kültür plaka üzerinde ve işaretçilerine kuyuların ortasında iyi bir konuma olduğundan oturduğundan emin olun. </li></ol> Pins 4. Kalibrasyon <ol><li> Düz steril bir yüzey (yani Petri kabı) dik wounder tutun ve M3 altıgen anahtar ile tüm altıgen vidayı gevşetin. </li><li> eşit düz steril yüzeyine dokunmayın tüm ipuçları kadar wounder dokunun. &lt;/ Li&gt; <li> pozisyonunda işaretçilerine kilitlemek için tekrar altıgen vidalarını sıkın. </li><li> Düz steril bir yüzeye hafifçe wounder dokunarak her ucu düzgünlüğü kontrol edin. </li></ol> 5. Kaşıma Hücre Tek tabakalı (Şekil 4) <ol><li> % 0.1 jelatin kaplı 96-iyi hücre kültür plakası üzerine tohum insan umbilikal damar endotelyal hücreleri. Ortama 199 Kültür hücreleri,% 20 ısı ile etkisiz hale getirilen fötal sığır serumu,% 1 penisilin / streptomisin ve 0.09 g / L heparin ile takviye edilmiştir. gece boyunca, kullanılmadan önce 37 ° C &#39;de,% 5 karbon dioksit ile nemlendirilmiş bir kuluçka makinesi içinde hücreleri korumak. Hücreler yaralama önce% 100 confluency ulaşması gerekir. </li><li> soldakinden (veya en sağdaki) kültür plaka aynı sütun içinde her bir kuyunun kenarındaki yaralama ipuçları yerleştirin. kuyunun üzerinden diğer tarafa wounder kaydırın; yaralama ipuçları kuyunun dibine dokunmadan emin olun. </li><li> tüm sütunlar için tırmalamak (Adım 5.2) tekrarlayın. </li><li> , Iskarta t yaralama sonraO, orta ve her bir oyuk taze ortam içeren test bileşikleri ile değiştirin. </li></ol> 6. Veri Toplama ve Görüntü Analizi <ol><li> Görüntü dijital kamera (örneğin 10X objektif) bir düşük güç mikroskop kullanılarak hücre tek tabaka mekanik yara ile tüm iyi derhal (t = 0 h) yaralama sonra. </li><li> arzu edildiği takdirde test bileşiklerinin ekleyin ve bir zaman istenilen uzunlukta inkübe edilir. Görüntü İstenilen kuluçka süresinden (t = AH) sonra yeniden yara alanı ile tüm iyi. </li><li> Böyle ImageJ gibi görüntü analiz yazılımı (kullanarak <a href="https://imagej.nih.gov/ij/">https://imagej.nih.gov/ij/</a> ), serbest aracını kullanarak resmin üzerine yaralı bölgeyi ölçer. </li><li> yara kapatma yüzdesini hesaplayın: <img alt="Denklem" src="/files/ftp_upload/55411/55411eq1.jpg" /></li></ol>

<ol>
	<li>Friedl, P., Wolf, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tumour-cell+invasion+and+migration:+diversity+and+escape+mechanisms.">Tumour-cell invasion and migration: diversity and escape mechanisms.</a> Nat Rev Cancer. 3 (5), 362-374 (2003).</li><li>Friedl, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prespecification+and+plasticity:+shifting+mechanisms+of+cell+migration.">Prespecification and plasticity: shifting mechanisms of cell migration.</a> Curr Opin Cell Biol. 16 (1), 14-23 (2004).</li><li>Lampugnani, M. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+migration+into+a+wounded+area+in+vitro.">Cell migration into a wounded area in vitro.</a> Methods Mol Biol. 96, 177-182 (1999).</li><li>Sholley, M. M., Gimbrone, M. A., Cotran, R. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cellular+migration+and+replication+in+endothelial+regeneration:+a+study+using+irradiated+endothelial+cultures.">Cellular migration and replication in endothelial regeneration: a study using irradiated endothelial cultures.</a> Lab Invest. 36 (1), 18-25 (1977).</li><li>Gotlieb, A. I., Spector, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Migration+into+an+in+vitro+experimental+wound:+a+comparison+of+porcine+aortic+endothelial+and+smooth+muscle+cells+and+the+effect+of+culture+irradiation.">Migration into an in vitro experimental wound: a comparison of porcine aortic endothelial and smooth muscle cells and the effect of culture irradiation.</a> Am J Pathol. 103 (2), 271-282 (1981).</li><li>Chen, Y. C., 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=Single-cell+migration+chip+for+chemotaxis-based+microfluidic+selection+of+heterogeneous+cell+populations.">Single-cell migration chip for chemotaxis-based microfluidic selection of heterogeneous cell populations.</a> Sci Rep. 18 (5), 9980 (2015).</li><li>Yarrow, J. C., Periman, Z. E., Westwood, N. J., Mitchison, T. 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+high-throughput+cell+migration+assay+using+scratch+wound+healing,+a+comparsion+of+image-based+readout+methods.">A high-throughput cell migration assay using scratch wound healing, a comparsion of image-based readout methods.</a> BMC Biotechnol. 4, 21 (2004).</li><li>Lauder, H., Frost, E. E., Hiley, C. R., Fan, T. P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Quantification+of+the+repair+process+involved+in+the+repair+of+a+cell+monolayer+using+an+in+vitro+model+of+mechanical+injury.">Quantification of the repair process involved in the repair of a cell monolayer using an in vitro model of mechanical injury.</a> Angiogenesis. 2 (1), 67-80 (1998).</li><li>Yue, P. Y. K., Leung, E. P. Y., Mak, N. K., Wong, R. N. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simplified+method+for+quantifying+cell+migration/+wound+healing+in+96-well+plates.">A simplified method for quantifying cell migration/ wound healing in 96-well plates.</a> J. Biomol Screen. 15 (4), 427-433 (2010).</li><li>Yue, P. Y., 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=Elucidation+of+the+mechanisms+underlying+the+angiogenic+effects+of+ginsenoside+Rg(1)+in+vivo+and+in+vitro.">Elucidation of the mechanisms underlying the angiogenic effects of ginsenoside Rg(1) in vivo and in vitro.</a> Angiogenesis. 8 (3), 205-216 (2005).</li><li>Kwok, H. H., Chan, L. S., Poon, P. Y., Yue, P. Y., Wong, R. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ginsenoside-Rg1+induces+angiogenesis+by+the+inverse+regulation+of+MET+tyrosine+kinase+receptor+expression+through+miR-23a.">Ginsenoside-Rg1 induces angiogenesis by the inverse regulation of MET tyrosine kinase receptor expression through miR-23a.</a> Toxicol Appl Pharmacol. 287 (3), 276-283 (2015).</li></ol>

Yazarlar hiçbir rakip mali çıkarları olduğunu beyan ederim.

Bizim hücre wounder geleneksel hücre göçü deneyleri sorunlarını çözmede birçok benzersiz özelliklere sahiptir. 8-kanallı mekanik hücre wounder otoklav ile sterilize edilebilir, uzun ömürlü, yüksek dereceli paslanmaz çelik (çelik 304) yapılmıştır. piyasada bulunan 96 oyuklu kültür plakaları neredeyse tüm ticari markalar için ayarlanabilir kılavuz çubuğunun bu mekanik hücre wounder kullanılabilir. Ayarlanabilir kılavuz çubuğunun tasarımı da kazıma alanı her bir merkezinde olmasını...

Hücre göçü gibi embriyojenez, nöron, anjiyogenez, yara iyileşmesi, mukozal tamiri, normal gelişim ve hastalık durumuna 1 altında epitelyal-mezenkimal-geçişler gibi hücresel süreçleri de önemli bir rol oynar. Bu sinyal molekül etkileşimleri, hücre kutuplaşma, hücre iskeleti yeniden, matris yeniden membran çıkıntı ve dinamik hücre-hücre yapışması modülasyonu 2 olmak üzere çok sayıda içi ve hücresel olayların koordinasyonunu içeren karmaşık bir süreçtir. hücre göçü inceleyerek, hücre hareketi ve bununla ilgili biyokimyasal yollar yol açan kimyasal madde veya biyomoleküllerin keşif ve doğrulama tespit edilebilir. Bu temel süreç böyle hastalık tedavisi ve ilaç hedefleme gibi çeşitli uygulamalar için bir vekil olarak yararlı bir şekilde kullanılabilir. Yaralama deney hücre göçü deneyleri 3 biridir. Burada, birhücrelerin tek tek örnek, kısmen hücre alanı kapsayacak şekilde göç bir soyulmuş alanı üretmek için mekanik araçlar ile kaldırılır. Belirli bir zaman noktasında geri kazanım yüzdesi izlenecektir. Örneklerin çok sayıda tutarken, bu tür örneklerin içinde deneysel maliyet ve çapraz kontaminasyon gibi konular sorunlu olabilir. Pek çok ticari araçlar ve deneyler, hücre göçü 4, 5, 6, çalışmak için uygun olmakla birlikte, bunların çok pahalı ve karmaşık ekipmanlar gerekmektedir ve geliştirmeler de ihtiyaç vardır. Bu nedenlerden dolayı, 8-kanallı mekanik hücre wounder (Şekil 1) olarak geliştirilmiştir. Bizim 8-kanal mekanik hücre wounder yukarıda belirtilen sorunların çözümünde birçok benzersiz özelliklere yer vermiş. Bu 96 gözlü kültür plakası formatında tahlilleri yaralama / hücre göçü gerçekleştirmek için esneklik sağlar. ayarlanabilir guiding bar tasarımı karalama alanı de her merkezi konumda olmasını sağlar. wounder kültür plakalarının çeşitli markalar için geçerlidir, böylece aynı zamanda, yönlendirme çubuklarının yüksekliğinin ayarlanabilir. Son olarak, ayarlanabilir yaralama pimi tasarımı aynı anda ve tekrarlanabilir yaralama 7, 8 ulaşmak için kültür plaka yüzeyi ile pipet uçları eşit teması sağlar.

<table><tbody><tr><td>96-well cell culture plate</td><td>Nunc</td><td>167008</td><td>Other brands of 96-well cell culture plate can also be used</td></tr><tr><td>P10 pipette tips</td><td>Axygen</td><td>301-03-051</td><td>Short P10 pipette tip is more easy to create a clear wound</td></tr><tr><td>Wounder</td><td>R&amp;amp;P Technology Limited</td><td></td><td></td></tr><tr><td>Medium 199</td><td>Sigma</td><td>M2520-1L</td><td>For cell culture of human umbilical vein endothelial cells.&lt;br/&gt; Use appropirate culture medium and condition for other type of cells.</td></tr><tr><td>Fetal bovine serum</td><td>Gibco</td><td>26140079</td><td>For cell culture of human umbilical vein endothelial cells.&lt;br/&gt; Use appropirate culture medium and condition for other type of cells.</td></tr><tr><td>Penicillin/Streptomycin</td><td>Gibco</td><td>15140122</td><td>For cell culture of human umbilical vein endothelial cells.&lt;br/&gt; Use appropirate culture medium and condition for other type of cells.</td></tr><tr><td>Heparin sodium salt from porcine intestinal mucosa</td><td>Sigma</td><td>H3393</td><td>For cell culture of human umbilical vein endothelial cells.&lt;br/&gt; Use appropirate culture medium and condition for other type of cells.</td></tr><tr><td>Gelatin from bovine skin</td><td>Sigma</td><td>G9391</td><td>For cell culture of human umbilical vein endothelial cells.&lt;br/&gt; Use appropirate culture medium and condition for other type of cells.</td></tr></tbody></table>

a device for performing cell migration/wound healing in a 96-well plate

Hücre göçü / tahlil yaralama hücre göçü ve anjiyogenez ve tümör metastazı gibi diğer biyolojik süreçleri incelemek için yaygın olarak kullanılan bir yöntemdir. Bu tahlilde, hücreler konfluent tek tabaka oluşturmak için büyütülür ve mekanik bir yara bir cihaz ile çizilerek oluşturulur. Sonra soyulmuş alanına doğru hücrelerinin göç hızı görüntüleme ile izlenebilir. Bizim 8 kanallı mekanik wounder hücre göçü deneyi ile ilişkili sorunların çoğunu çözmek için tasarlanmıştır. Birincisi, bizim wounder kolayca otoklav ile veya ortak dezenfektanlar ile sterilize edilebilir. İkinci olarak, tek tek ayarlanabilen pimleri daha keskin ve tekrarlanabilir yaralar oluşturulabilir, böylece hücre kültür plakası ile temas etmesi. Üçüncü olarak, wounder her iki tarafında kılavuz çubukları her bir tutarlı yaralama pozisyonunu garantiler. ayrıca wounder daha iyi yol tutuşu sağlayabilir yanı sıra çapraz contaminat en aza indirmek için yaralama için tek kullanımlık plastik pipet uçlarının kullanılmasıiyon. Sonuç olarak, hücre wounder standart 96 oyuklu bir kültür plakası kullanarak hücre göçü deneyi gerçekleştirmek için bir kullanıcı dostu ve yeniden üretilebilir bir cihazla araştırmacılar sağlayabilir.

Bu 8-kanal mekanik wounder hücre göçü deneyi gerçekleştirmek için hücre tek tabaka kazımak için imal edilir. Bu özel eğitim olmadan bir dakikadan az 96 oyuklu plakalarda hücre tırmalamak analizleri yapabilir kullanıcı dostu bir cihazdır. Bu wounder yaklaşık 600 um&#39;lik bir düzgün genişlikte ve keskin kenarlı hücre tekli katmanları üzerinde yara alanı neden olabilir (Şekil 5 ve 6). Yaraların genişliği pipet uçları marka...

Watch this Scientific Journal Video about A Device for Performing Cell Migration/Wound Healing in a 96-Well Plate at JoVE.com

A Device for Performing Cell Migration/Wound Healing in a 96-Well Plate

Burada, bir 96-yuvalı hücre kültürü plakasının bir yarı-yüksek verimli hücre göçü deneyi gerçekleştirmek için bir protokol mevcut. Bu protokol, bir hücre tek tabaka üzerinde tutarlı çizik yaraları oluşturmak için hızlı, basit ve ekonomik bir yöntemdir.

96 oyuklu bir plaka içerisinde hücre gücü / yara iyileşme gerçekleştirmek için bir cihaz

The cell migration/wounding assay is a commonly used method to study cell migration and other biological processes, such as angiogenesis and tumor ...

a-device-for-performing-cell-migrationwound-healing-in-a-96-well-plate

Research

JoVE Journal

Developmental Biology

10.4K Görüntüleme.  Hong Kong Baptist University.  Burada, bir 96-yuvalı hücre kültürü plakasının bir yarı-yüksek verimli hücre göçü deneyi gerçekleştirmek için bir protokol mevcut. Bu protokol, bir hücre tek tabaka üzerinde tutarlı çizik yaraları oluşturmak için hızlı, basit ve ekonomik bir yöntemdir. 

Video: A Device for Performing Cell Migration/Wound Healing in a 96-Well Plate

Evaluation of the Cell Invasion and Migration Process: A Comparison of the Video Microscope-based Scratch Wound Assay and the Boyden Chamber Assay

The invasion and migration abilities of tumor cells are main contributors to cancer progression and recurrence. Many studies have explored the migration and invasion abilities to understand how cancer cells disseminate, with the aim of developing new treatment strategies. Analysis of the cellular and molecular basis of these abilities has led to the characterization of cell mobility and the physicochemical properties of the cytoskeleton and cellular microenvironment. For many years, the Boyden chamber assay and the scratch wound assay have been the standard techniques to study cell invasion and migration. However, these two techniques have limitations. The Boyden chamber assay is difficult and time consuming, and the scratch wound assay has low reproducibility. Development of modern technologies, especially in microscopy, has increased the reproducibility of the scratch wound assay. Using powerful analysis systems, an &#34;in-incubator&#34; video microscope can be used to provide automatic and real-time analysis of cell migration and invasion. The aim of this paper is to report and compare the two assays used to study cell invasion and migration: the Boyden chamber assay and an optimized in vitro video microscope-based scratch wound assay.

This study reports two different methods for the analysis of cell invasion and migration: the Boyden chamber assay and the in vitro video microscope-based wound-healing assay. The protocols for these two experiments are described, and their benefits and disadvantages are compared.

Cep işgali ve geçiş işlemi değerlendirilmesi: Video mikroskop esaslı çizik karşılaştırılması tahlil ve Boyden odası tahlil yara

The invasion and migration abilities of tumor cells are main contributors to cancer progression and recurrence. Many studies have explored the migration ...

Kanser Araştırmaları

Methods to Study Mrp4-containing Macromolecular Complexes in the Regulation of Fibroblast Migration

Multidrug resistance protein 4 (MRP4) is a member of the ATP-binding cassette family of membrane transporters and is an endogenous efflux transporter of cyclic nucleotides. By modulating intracellular cyclic nucleotide concentration, MRP4 can regulate multiple cyclic nucleotide-dependent cellular events including cell migration. Previously, we demonstrated that in the absence of MRP4, fibroblast cells contain higher levels of intracellular cyclic nucleotides and can migrate faster. To understand the underlying mechanisms of this finding, we adopted a direct yet multifaceted approach. First, we isolated potential interacting protein complexes of MRP4 from a MRP4 over-expression cell system using immunoprecipitation followed by mass-spectrometry. After identifying unique proteins in the MRP4 interactome, we utilized Ingenuity Pathway Analysis (IPA) to explore the role of these protein-protein interactions in the context of signal transduction. We elucidated the potential role of the MRP4 protein complex in cell migration and identified F-actin as a major mediator of the effect of MRP4 on cell migration. This study also emphasized the role of cAMP and cGMP as key players in the migratory phenomena. Using high-content microscopy, we performed cell-migration assays and observed that the effect of MRP4 on fibroblast migration is completely abolished by disruption of the actin cytoskeleton or inhibition of cAMP-dependent kinase A (PKA). To visualize signaling modulations in a migrating cell in real time, we utilized a FRET-based sensor for measuring PKA activity and found, the presence of more polarized PKA activity near the leading edge of migrating Mrp4-/- fibroblast, compared to Mrp4+/+fibroblasts. This in turn increased cortical actin formation and augmented the process of migration. Our approach enables identification of the proteins acting downstream to MRP4 and provides us with an overview of the mechanism involved in MRP4-dependent regulation of fibroblast migration.

MRP4 regulates various cyclic nucleotide-dependent signaling events including a recently elucidated role in cell migration. We describe a direct, but multifaceted approach to unravel the downstream molecular targets of MRP4 resulting in identification of a unique MRP4 interactome that plays key roles in the fine-tuned regulation of fibroblast migration.

Yöntemler Fibroblast Göç Yönetmeliği Mrp4 içeren makromoleküler kompleksler Eğitim için

Multidrug resistance protein 4 (MRP4) is a member of the ATP-binding cassette family of membrane transporters and is an endogenous efflux transporter of ...

Gelişim Biyolojisi

A Simple Migration/Invasion Workflow Using an Automated Live-cell Imager

Cancer cell mobility is crucial for the initiation of metastasis. Therefore, investigation of the cell movement and invasive capacity is of great significance. Migration assays provide basic insight of cell movement at a 2D level, whereas invasion assays are more physiologically relevant, mimicking in vivo cancer cell dislodgment from the original site and invading through the extracellular matrix. The current protocol provides a single workflow for migration and invasion assays. Together with the integrated automated microscopic camera for real-time HD images and built-in analysis module, it gives researchers a time-efficient, simple and reproducible experimental option. This protocol also includes substitutions for the consumables and alternative analysis methods for users to choose from.

The current protocol describes an integrated method investigating cancer cell migration and invasion on a single platform in real-time, providing an easily reproducible and time-efficient option to study cell mobility and morphology.

Otomatik bir canlı hücre Imager kullanarak basit geçiş/işgali iş akışı

Cancer cell mobility is crucial for the initiation of metastasis. Therefore, investigation of the cell movement and invasive capacity is of great ...

Characterizing Cell Migration Within Three-dimensional In Vitro Wound Environments

Currently, most in vitro models of wound healing, such as well-established scratch assays, involve studying cell migration and wound closure on two-dimensional surfaces. However, the physiological environment in which in vivo wound healing takes place is three-dimensional rather than two-dimensional. It is becoming increasingly clear that cell behavior differs greatly in two-dimensional vs. three-dimensional environments; therefore, there is a need for more physiologically relevant in vitro models for studying cell migration behaviors in wound closure. The method described herein allows for the study of cell migration in a three-dimensional model that better reflects physiological conditions than previously established two-dimensional scratch assays. The purpose of this model is to evaluate cell outgrowth via the examination of cell migration away from a spheroid body embedded within a fibrin matrix in the presence of pro- or anti-migratory factors. Using this method, cell outgrowth from the spheroid body in a three-dimensional matrix can be observed and is easily quantifiable over time via brightfield microscopy and analysis of spheroid body area. The effect of pro-migratory and/or inhibitory factors on cell migration can also be evaluated in this system. This method provides researchers with a simple method of analyzing cell migration in three-dimensional wound associated matrices in vitro, thus increasing the relevance of in vitro cell studies prior to the use of in vivo animal models.

Characterizing Cell Migration Within Three-dimensional In Vitro Wound Environments

The goal of this protocol is to evaluate the effect of pro- and anti-migratory factors on cell migration within a three-dimensional fibrin matrix.

İçinde üç boyutlu Vitro hücre göç karakterize ortamlar yara

Currently, most in vitro models of wound healing, such as well-established scratch assays, involve studying cell migration and wound closure on ...

Biyomühendislik

A Novel In Vitro Wound Healing Assay to Evaluate Cell Migration

The aim of this work is to show a novel method to evaluate the ability of some immunomodulatory molecules, such as antimicrobial peptides (AMPs), to stimulate cell migration. Importantly, cell migration is a rate-limiting event during the wound-healing process to re-establish the integrity and normal function of tissue layers after injury. The advantage of this method over the classical assay, which is based on a manually made scratch in a cell monolayer, is the usage of special silicone culture inserts providing two compartments to create a cell-free pseudo-wound field with a well-defined width (500 &#956;m). In addition, due to an automated image analysis platform, it is possible to rapidly obtain quantitative data on the speed of wound closure and cell migration. More precisely, the effect of two frog-skin AMPs on the migration of bronchial epithelial cells will be shown. Furthermore, pretreatment of these cells with specific inhibitors will provide information on the molecular mechanisms underlying such events.

A Novel In Vitro Wound Healing Assay to Evaluate Cell Migration

Here, we present a protocol to evaluate the effect of peptides on the migration of bronchial epithelial cells. This method allows for the rapid and highly reproducible obtainment of quantitative data on the speed of cell migration and wound closure.

Roman Vitro hücre göç değerlendirmek için şifa tahlil yara

The aim of this work is to show a novel method to evaluate the ability of some immunomodulatory molecules, such as antimicrobial peptides (AMPs), to ...

İmmünoloji ve Enfeksiyon

Microscopy Based Methods for the Assessment of Epithelial Cell Migration During In Vitro Wound Healing

Cell migration is a mandatory aspect for wound healing. Creating artificial wounds on research animal models often results in costly and complicated experimental procedures, while potentially lacking in precision. In vitro culture of epithelial cell lines provides a suitable platform for researching the cell migratory behavior in wound healing and the impact of treatments on these cells. The physiology of epithelial cells is often studied in non-confluent conditions; however, this approach may not resemble natural wound healing conditions. Disrupting the epithelium integrity by mechanical means generates a realistic model, but may impede the application of molecular techniques. Consequently, microscopy based techniques are optimal for studying epithelial cell migration in vitro. Here we detail two specific methods, the artificial wound scratch assay and the artificial migration front assay, that can obtain quantitative and qualitative data, respectively, on the migratory performance of epithelial cells.

Microscopy Based Methods for the Assessment of Epithelial Cell Migration During  In Vitro Wound Healing

This manuscript describes how incision-like lesions made on cultured epithelial cell monolayers conveniently model wound healing in vitro, allowing for imaging by confocal or laser scanning microscopy, and which can provide high-quality quantitative and qualitative data for studying both cell behavior and the mechanisms involved in migration.

Mikroskopi Vitro yara iyileşmesi sırasında epitel hücre göç değerlendirilmesi için yöntemleri temel

Cell migration is a mandatory aspect for wound healing. Creating artificial wounds on research animal models often results in costly and complicated ...

Tıp

In vitro Cell Migration and Invasion Assays

Migration is a key property of live cells and critical for normal development, immune response, and disease processes such as cancer metastasis and inflammation. Methods to examine cell migration are very useful and important for a wide range of biomedical research such as cancer biology, immunology, vascular biology, cell biology and developmental biology. Here we use tumor cell migration and invasion as an example and describe two related assays to illustrate the commonly used, easily accessible methods to measure these processes. The first method is the cell culture wound closure assay in which a scratch is generated on a confluent cell monolayer. The speed of wound closure and cell migration can be quantified by taking snapshot pictures with a regular inverted microscope at several time intervals. More detailed cell migratory behavior can be documented using the time-lapse microscopy system. The second method described in this paper is the transwell cell migration and invasion assay that measures the capacity of cell motility and invasiveness toward a chemo-attractant gradient. It is our goal to describe these methods in a highly accessible manner so that the procedures can be successfully performed in research laboratories even just with basic cell biology setup.

In vitro Cell Migration and Invasion Assays

Commonly used, highly accessible methods for examining cell migration and invasion in vitro are described. The first method is the cell wound closure assay that measures cell motility. The second method is the transwell migration and invasion assay that assesses the chemotactic and invasive capacity of cells.

Vitro Hücre Göç ve Invasion Tahliller

Migration is a key property of live cells and critical for normal development, immune response, and disease processes such as cancer metastasis and ...

Biyoloji

Scratch Migration Assay and Dorsal Skinfold Chamber for In Vitro and In Vivo Analysis of Wound Healing

Impaired cutaneous wound healing is a major concern for patients suffering from diabetes and for elderly people, and there is a need for an effective treatment. Appropriate in vitro and in vivo approaches are essential for the identification of new target molecules for drug treatments to improve the skin wound healing process. We identified the &#946;3 subunit of voltage-gated calcium channels (Cav&#946;3) as a potential target molecule to influence the wound healing in two independent assays, i.e., the in vitro scratch migration assay and the in vivo dorsal skinfold chamber model. Primary mouse embryonic fibroblasts (MEFs) acutely isolated from wild-type (WT) and Cav&#946;3-deficient mice (Cav&#946;3 KO) or fibroblasts acutely isolated from WT mice treated with siRNA to down-regulate the expression of the Cacnb3 gene, encoding Cav&#946;3, were used. A scratch was applied on a confluent cell monolayer and the gap closure was followed by taking microscopic images at defined time points until complete repopulation of the gap by the migrating cells. These images were analyzed, and the cell migration rate was determined for each condition. In an in vivo assay, we implanted a dorsal skinfold chamber on WT and Cav&#946;3 KO mice, applied a defined circular wound of 2 mm diameter, covered the wound with a glass coverslip to protect it from infections and desiccation, and monitored the macroscopic wound closure over time. Wound closure was significantly faster in Cacnb3-gene-deficient mice. Because the results of the in vivo and the in vitro assays correlate well, the in vitro assay may be useful for the high-throughput screening before validating the in vitro hits by the in vivo wound healing model. What we have shown here for wild-type and Cav&#946;3-deficient mice or cells might also be applicable for specific molecules other than Cav&#946;3.

Here, we present a protocol for an in vitro scratch assay using primary fibroblasts and for an in vivo skin wound healing assay in mice. Both assays are straightforward methods to assess in vitro and in vivo wound healing.

In Vitro ve In Vivo In Vivo Analizi Yara İyileşmesi için Scratch Migration Tahlil ve Dorsal Skinfold Odası

Impaired cutaneous wound healing is a major concern for patients suffering from diabetes and for elderly people, and there is a need for an effective ...

Quantifying Three-Dimensional Cell Migration Within and Into Granular Hydrogel Biomaterials

Granular hydrogel scaffolds hold significant potential in regenerative medicine, functioning either as carriers for cell delivery or as interfaces for tissue integration. This article introduces two novel approaches for quantifying cell migration within and into granular hydrogels, highlighting the distinct applications of these scaffolds. First, a cell monolayer interface assay that simulates tissue growth into granular hydrogels for integration purposes is presented. Second, a spheroid-based assay is described, designed to track cell movement within the hydrogel matrix, specifically suited for applications involving cell delivery. Both methods enable precise and controlled measurements of cell migration, providing a comprehensive toolkit for researchers utilizing granular hydrogel scaffolds. The motivation for these methods stems from the need for tailored control over cell migration within the scaffold to align with specific applications. By optimizing and standardizing these quantification techniques, researchers can iteratively refine granular hydrogel properties, ensuring their effectiveness in diverse regenerative medicine contexts. This robust set of quantitative tools offers new opportunities to enhance granular hydrogel scaffolds, advancing their use in both cell delivery and tissue integration applications.

A protocol for the quantitative evaluation of 3D cell migration within and into the interface of granular hydrogels is presented here.

Granül Hidrojel Biyomalzemeler İçinde ve İçine Üç Boyutlu Hücre Migrasyonunun Ölçülmesi

Granular hydrogel scaffolds hold significant potential in regenerative medicine, functioning either as carriers for cell delivery or as interfaces for ...

An Innovative 3D-Printed Insert Designed to Enable Straightforward 2D and 3D Cell Cultures

The classical analyses of indirect communication between different cell types necessitate the use of conditioned media. Moreover, the production of conditioned media remains time-consuming and far from physiological and pathological conditions. Although a few models of co-culture are commercially available, they remain restricted to specific assays and are mostly for two types of cells. 
Here, 3D-printed inserts are used that are compatible with numerous functional assays. The insert allows the separation of one well of a 6-well plate into four compartments. A wide range of combinations can be set. Moreover, windows are designed in each wall of the compartments so that potential intercellular communication between every compartment is possible in the culture medium in a volume-dependent manner. For example, paracrine intercellular communication can be studied between four cell types in monolayer, in 3D (spheroids), or by combining both. In addition, a mix of different cell types can be seeded in the same compartment in 2D or 3D (organoids) format. The absence of a bottom in the 3D-printed inserts allows the usual culture conditions on the plate, possible coating on the plate containing the insert, and direct visualization by optical microscopy. The multiple compartments provide the possibility to collect different cell types independently or to use, in each compartment, different reagents for RNA or protein extraction. In this study, a detailed methodology is provided to use the new 3D-printed insert as a co-culture system. To demonstrate several capacities of this flexible and simple model, previously published functional assays of cell communication were performed in the new 3D-printed inserts and were demonstrated to be reproducible. The 3D-printed inserts and the conventional cell culture using conditioned media led to similar results. In conclusion, the 3D-printed insert is a simple device that can be adapted to numerous models of co-cultures with adherent cell types.

In this paper, a newly designed 3D-printed insert is presented as a model of co-culture and validated through the study of the paracrine intercellular communication between endothelial cells and keratinocytes.

Basit 2D ve 3D hücre kültürlerini mümkün kılmak için tasarlanmış yenilikçi bir 3D baskılı ek parça

The classical analyses of indirect communication between different cell types necessitate the use of conditioned media. Moreover, the production of ...