A step‐by‐step protocol for isolation of murine nucleus pulposus cells

Abstract The intervertebral disc (IVD) is composed of three separate tissues with distinct origins and properties. Elucidating changes occurring in these tissues in response to injury or age is paramount to identify new therapies to better manage disc and spine degenerative conditions, including low...

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Main Authors: Andrew Bratsman, Greig Couasnay, Florent Elefteriou
Format: Article
Language:English
Published: Wiley 2019-12-01
Series:JOR Spine
Subjects:
Online Access:https://doi.org/10.1002/jsp2.1073
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author Andrew Bratsman
Greig Couasnay
Florent Elefteriou
author_facet Andrew Bratsman
Greig Couasnay
Florent Elefteriou
author_sort Andrew Bratsman
collection DOAJ
description Abstract The intervertebral disc (IVD) is composed of three separate tissues with distinct origins and properties. Elucidating changes occurring in these tissues in response to injury or age is paramount to identify new therapies to better manage disc and spine degenerative conditions, including low back pain. Despite their small size and different mechanical load pattern compared to higher species, the use of mouse models represents a cost‐effective and powerful approach to better understand the formation, maintenance, and degeneration of the IVD. However, the isolation of the different compartments of the IVD is complicated by their diminutive size. Here, we describe a simple, step‐by‐step protocol for the isolation of the nucleus pulposus (NP) tissues that can then be processed for further analyses. Analysis from mouse NP tissues shows sufficient quantities of RNAs, purity of the NP fraction, and overall RNA quality for gene expression studies, and reveals no increase in expression of disc degeneration markers, including TNFa, IL1b, and Mmp1 up to 15 months of age in C57BL6 wildtype mice.
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spelling doaj.art-14bc9452370d4c06a9b1f178a62a16b92022-12-22T02:32:34ZengWileyJOR Spine2572-11432019-12-0124n/an/a10.1002/jsp2.1073A step‐by‐step protocol for isolation of murine nucleus pulposus cellsAndrew Bratsman0Greig Couasnay1Florent Elefteriou2Department of Orthopedic Surgery Baylor College of Medicine Houston TexasDepartment of Orthopedic Surgery Baylor College of Medicine Houston TexasDepartment of Orthopedic Surgery Baylor College of Medicine Houston TexasAbstract The intervertebral disc (IVD) is composed of three separate tissues with distinct origins and properties. Elucidating changes occurring in these tissues in response to injury or age is paramount to identify new therapies to better manage disc and spine degenerative conditions, including low back pain. Despite their small size and different mechanical load pattern compared to higher species, the use of mouse models represents a cost‐effective and powerful approach to better understand the formation, maintenance, and degeneration of the IVD. However, the isolation of the different compartments of the IVD is complicated by their diminutive size. Here, we describe a simple, step‐by‐step protocol for the isolation of the nucleus pulposus (NP) tissues that can then be processed for further analyses. Analysis from mouse NP tissues shows sufficient quantities of RNAs, purity of the NP fraction, and overall RNA quality for gene expression studies, and reveals no increase in expression of disc degeneration markers, including TNFa, IL1b, and Mmp1 up to 15 months of age in C57BL6 wildtype mice.https://doi.org/10.1002/jsp2.1073aginggene expressionintervertebral disc degenerationnucleus pulposus
spellingShingle Andrew Bratsman
Greig Couasnay
Florent Elefteriou
A step‐by‐step protocol for isolation of murine nucleus pulposus cells
JOR Spine
aging
gene expression
intervertebral disc degeneration
nucleus pulposus
title A step‐by‐step protocol for isolation of murine nucleus pulposus cells
title_full A step‐by‐step protocol for isolation of murine nucleus pulposus cells
title_fullStr A step‐by‐step protocol for isolation of murine nucleus pulposus cells
title_full_unstemmed A step‐by‐step protocol for isolation of murine nucleus pulposus cells
title_short A step‐by‐step protocol for isolation of murine nucleus pulposus cells
title_sort step by step protocol for isolation of murine nucleus pulposus cells
topic aging
gene expression
intervertebral disc degeneration
nucleus pulposus
url https://doi.org/10.1002/jsp2.1073
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