Name: labeling stem cells with ferumoxytol, an fda-approved iron oxide nanoparticle
Uploaded: 2011-11-04T13:00:00
Description: Watch this Scientific Journal Video about Labeling Stem Cells with Ferumoxytol, an FDA-Approved Iron Oxide Nanoparticle at JoVE.com

وأيد هذا العمل من خلال منحة من المعهد الوطني لالتهاب المفاصل والعضلات والعظام والأمراض الجلدية : 3R01AR054458 - 02S2.

1. اليوم 1 خلايا بلايت 1) <ol style=";text-align:right;direction:rtl"><li style=";text-align:right;direction:rtl"> hMSC وحة في قارورة T75 في confluency من 80 ٪ على الأقل 18-24 ساعة قبل وضع العلامات. الرجوع إلى الجدول رقم 1 للتعليم للسفن بديلة. </li></ol> 2. ال?...

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تحسين فعالية engraftments الخلايا الجذعية هو أمر حاسم لتطوير الطب التجديدي. وهناك تقنية التصور غير الغازية للخلايا الجذعية في الجسم الحي يعزز بشكل كبير من قدرتنا على فهم الآليات التي تؤدي إلى نتائج engraftment ناجحة. وسم المغناطيسي لرؤية MR ، مثل إجراء أننا أظهرنا ، ويسمح <em...

<table border="1" style=";text-align:right;direction:rtl"><tbody><tr><td> اسم الكاشف </td><td> شركة </td><td> فهرس العدد </td><td> تعليق (اختياري) </td></tr><tr><td> D - MEM الجلوكوز السامية </td><td> سيغما </td><td> D5648 </td><td> أو متوسطة قاعدة أخرى لوقف خط الخلية المطلوب ليتم استخدامها </td></tr><tr><td> D - PBS (كا + + ، المغنيسيوم + + الحرة) </td><td> GIBCO </td><td> 14190-144 </td><td></td></tr><tr><td> التربسين - EDTA 0.05 ٪ </td><td> Invitrogen </td><td> 25300-120 </td><td></td></tr><tr><td> الجنين مصل البقر (FBS) </td><td> Hyclone </td><td> SH30071.03 </td><td></td></tr><tr><td> Ferumoxytol (Feraheme) </td><td> AMAG </td><td> 59338-0775-01 </td><td></td></tr><tr><td> سلفات بروتامين </td><td> APP فارم. </td><td> 22930 </td><td></td></tr>
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labeling stem cells with ferumoxytol, an fda-approved iron oxide nanoparticle

Stem cell based therapies offer significant potential for the field of regenerative medicine. However, much remains to be understood regarding the in vivo kinetics of transplanted cells. A non-invasive method to repetitively monitor transplanted stem cells in vivo would allow investigators to directly monitor stem cell transplants and identify successful or unsuccessful engraftment outcomes.
A wide range of stem cells continues to be investigated for countless applications. This protocol focuses on 3 different stem cell populations: human embryonic kidney 293 (HEK293) cells, human mesenchymal stem cells (hMSC) and induced pluripotent stem (iPS) cells. HEK 293 cells are derived from human embryonic kidney cells grown in culture with sheared adenovirus 5 DNA. These cells are widely used in research because they are easily cultured, grow quickly and are easily transfected. hMSCs are found in adult marrow. These cells can be replicated as undifferentiated cells while maintaining multipotency or the potential to differentiate into a limited number of cell fates. hMSCs can differentiate to lineages of mesenchymal tissues, including osteoblasts, adipocytes, chondrocytes, tendon, muscle, and marrow stroma. iPS cells are genetically reprogrammed adult cells that have been modified to express genes and factors similar to defining properties of embryonic stem cells. These cells are pluripotent meaning they have the capacity to differentiate into all cell lineages 1. Both hMSCs and iPS cells have demonstrated tissue regenerative capacity in-vivo.
Magnetic resonance (MR) imaging together with the use of superparamagnetic iron oxide (SPIO) nanoparticle cell labels have proven effective for in vivo tracking of stem cells due to the near microscopic anatomical resolution, a longer blood half-life that permits longitudinal imaging and the high sensitivity for cell detection provided by MR imaging of SPIO nanoparticles 2-4. In addition, MR imaging with the use of SPIOs is clinically translatable. SPIOs are composed of an iron oxide core with a dextran, carboxydextran or starch surface coat that serves to contain the bioreactive iron core from plasma components. These agents create local magnetic field inhomogeneities that lead to a decreased signal on T2-weighted MR images 5. Unfortunately, SPIOs are no longer being manufactured. Second generation, ultrasmall SPIOs (USPIO), however, offer a viable alternative. Ferumoxytol (FerahemeTM) is one USPIO composed of a non-stoichiometric magnetite core surrounded by a polyglucose sorbitol carboxymethylether coat. The colloidal, particle size of ferumoxytol is 17-30 nm as determined by light scattering. The molecular weight is 750 kDa, and the relaxivity constant at 2T MRI field is 58.609 mM-1 sec-1 strength4. Ferumoxytol was recently FDA-approved as an iron supplement for treatment of iron deficiency in patients with renal failure 6. Our group has applied this agent in an &ldquo;off label&rdquo; use for cell labeling applications. Our technique demonstrates efficient labeling of stem cells with ferumoxytol that leads to significant MR signal effects of labeled cells on MR images. This technique may be applied for non-invasive monitoring of stem cell therapies in pre-clinical and clinical settings.

Watch this Scientific Journal Video about Labeling Stem Cells with Ferumoxytol, an FDA-Approved Iron Oxide Nanoparticle at JoVE.com

Labeling Stem Cells with Ferumoxytol, an FDA-Approved Iron Oxide Nanoparticle

وصفنا تقنية لوضع العلامات وتعقب الخلايا الجذعية مع ادارة الاغذية والعقاقير التي وافق عليها ، superparamagnetic أكسيد الحديد (سبيو) ، ferumoxytol (Feraheme). هذه التقنية التي تستخدم الخلوية التصوير بالرنين المغناطيسي (MR) التصوير عن التصور ، ويمكن الوصول بسهولة للرصد طويل الأجل وتشخيص ناجحة أو فاشلة engraftments الخلايا الجذعية في مرضى.

وسم الخلايا الجذعية مع Ferumoxytol ، وهو أوكسيد الحديد وافقت عليها الهيئة الجسيمات النانوية

Stem cell based therapies offer significant potential for the field of regenerative medicine. However, much remains to be understood regarding the in vivo ...

Research

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Medicine

Isolation, Characterization and Comparative Differentiation of Human Dental Pulp Stem Cells Derived from Permanent Teeth by Using Two Different Methods

العزلة، وتوصيف المقارن التمييز بين الخلايا الجذعية البشرية الأسنان اللب المستمدة من الأسنان الدائمة باستخدام طريقتين مختلفتين

Developing wisdom teeth are easy-accessible source of stem cells during the adulthood which could be obtained by routine orthodontic treatments. Human ...

Using Quantitative Real-time PCR to Determine Donor Cell Engraftment in a Competitive Murine Bone Marrow Transplantation Model

باستخدام الكمي في الوقت الحقيقي PCR لتحديد الجهات المانحة Engraftment خلية في التنافسية نموذج الفئران زرع نخاع العظم

Murine bone marrow transplantation models provide an important tool in measuring hematopoietic stem cell (HSC) functions and determining genes/molecules ...

Coculture System with an Organotypic Brain Slice and 3D Spheroid of Carcinoma Cells

نظام Coculture مع عضوي النمط شريحة الدماغ و 3D كروي من خلايا سرطان

Patients with cerebral metastasis of carcinomas have a poor prognosis. However, the process at the metastatic site has barely been investigated, in ...

Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies

دراسة سرطان البنكرياس الجذعية خصائص الخلايا لتطوير استراتيجيات علاجية جديدة

Pancreatic ductal adenocarcinoma (PDAC) contains a subset of exclusively tumorigenic cancer stem cells (CSCs) which have been shown to drive tumor ...

Forskolin-induced Swelling in Intestinal Organoids: An In Vitro Assay for Assessing Drug Response in Cystic Fibrosis Patients

Forskolin-induced Swelling in Intestinal Organoids: An In Vitro Assay for Assessing Drug Response in Cystic Fibrosis Patients

Forskolin-الناجم عن تورم في الأمعاء Organoids: ل<em&gt; في المختبر</em&gt; الفحص لتقييم الاستجابة للدواء في التليف الكيسي المرضى

Recently-developed cystic fibrosis transmembrane conductance regulator (CFTR)-modulating drugs correct surface expression and/or function of the mutant ...

Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload

استمرار تبادل نقل يدوي عن المرضى الذين يعانون من مرض فقر الدم المنجلي: وسيلة فعالة لتجنب الحمل الزائد الحديد

Children with sickle cell anemia (SCA) may be at risk of cerebral vasculopathy and strokes, which can be prevented by chronic transfusion programs. ...

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection

تركيب وتوصيف وتطبيق مسابر نانوية لأكسيد الحديد فائق المغناطيسية للكشف عن السل خارج الرئة

A molecular imaging probe comprising superparamagnetic iron oxide (SPIO) nanoparticles and Mycobacterium tuberculosis surface antibody (MtbsAb) was ...

Polyethyleneimine-coated Iron Oxide Nanoparticles as a Vehicle for the Delivery of Small Interfering RNA to Macrophages In Vitro and In Vivo

Polyethyleneimine-coated Iron Oxide Nanoparticles as a Vehicle for the Delivery of Small Interfering RNA to Macrophages In Vitro and In Vivo

جسيمات نانوية المغلفة بولييثيلينيميني أكسيد الحديد كوسيلة لإيصال الحمض النووي الريبي التدخل الصغيرة إلى الضامة في المختبر و في فيفو

Because of their critical role in regulating immune responses, macrophages have continuously been the subject of intensive research and represent a ...

An Enzyme-free Method for Isolation and Expansion of Human Adipose-derived Mesenchymal Stem Cells

طريقه خاليه من الانزيمات للعزل والتمدد للخلايا الجذعية الدهنية المستمدة من الدهون البشرية

Mesenchymal stem cells (MSCs) are a population of multipotent cells that can be isolated from various adult and fetal tissues, including adipose tissue. ...

Tracking Superparamagnetic Iron Oxide-labeled Mesenchymal Stem Cells using MRI after Intranasal Delivery in a Traumatic Brain Injury Murine Model

تتبع أكسيد الحديد المغناطيسي المسمي الخلايا الجذعية المسسبيه باستخدام التصوير بالرنين المغناطيسي بعد الولادة في الأنف في أصابه الدماغ الرضية نموذج Murine

Stem cell-based therapies for brain injuries, such as traumatic brain injury (TBI), are a promising approach for clinical trials. However, technical ...