Cited by 84Bone health and osteoporosis researchBone Metabolism and DiseasesWnt/β-catenin signaling in development and cancer

An RNA-seq protocol to identify mRNA expression changes in mouse diaphyseal bone: Applications in mice with bone property altering Lrp5 mutations

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Ayturk, Ugur M, Jacobsen, Christina M, Christodoulou, Danos C, Gorham, Joshua, Seidman, Jonathan G, Seidman, Christine E, Robling, Alexander G, Warman, Matthew L·2013·Journal of Bone and Mineral Research

Abstract

Loss-of-function and certain missense mutations in the Wnt coreceptor low-density lipoprotein receptor-related protein 5 (LRP5) significantly decrease or increase bone mass, respectively. These human skeletal phenotypes have been recapitulated in mice harboring Lrp5 knockout and knock-in mutations. We hypothesized that measuring mRNA expression in diaphyseal bone from mice with Lrp5 wild-type (Lrp5+/+), knockout (Lrp5–/–), and high bone mass (HBM)-causing (Lrp5p.A214V/+) knock-in alleles could identify genes and pathways that regulate or are regulated by LRP5 activity. We performed RNA-seq on pairs of tibial diaphyseal bones from four 16-week-old mice with each of the aforementioned genotypes. We then evaluated different methods for controlling for contaminating nonskeletal tissue (ie, blood, bone marrow, and skeletal muscle) in our data. These methods included predigestion of diaphyseal bone with collagenase and separate transcriptional profiling of blood, skeletal muscle, and bone marrow. We found that collagenase digestion reduced contamination, but also altered gene expression in the remaining cells. In contrast, in silico filtering of the diaphyseal bone RNA-seq data for highly expressed blood, skeletal muscle, and bone marrow transcripts significantly increased the correlation between RNA-seq data from an animal's right and left tibias and from animals with the same Lrp5 genotype. We conclude that reliable and reproducible RNA-seq data can be obtained from mouse diaphyseal bone and that lack of LRP5 has a more pronounced effect on gene expression than the HBM-causing LRP5 missense mutation. We identified 84 differentially expressed protein-coding transcripts between LRP5 “sufficient” (ie, Lrp5+/+ and Lrp5p.A214V/+) and “insufficient” (Lrp5–/–) diaphyseal bone, and far fewer differentially expressed genes between Lrp5p.A214V/+ and Lrp5+/+ diaphyseal bone. © 2013 American Society for Bone and Mineral Research.

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Authors
Ayturk, U. M., Jacobsen, C. M., Christodoulou, D. C., Gorham, J., Seidman, J. G., Seidman, C. E., Robling, A. G., & Warman, M. L.
Affiliations
  • Boston Children's Hospital (US)
  • Harvard University (US)
  • Howard Hughes Medical Institute (US)
  • Indiana University School of Medicine (US)
Corresponding author
Warman, Matthew L
Venue
Journal of Bone and Mineral Research
Published
2013-04-02
Volume
28
Issue
10
Pages
2081-2093
ISSN
  • 0884-0431 (ISSN-L)
  • 1523-4681
OpenAlex
W2171092805
Cited by
84
References
79
Citations by year
2026: 3 · 2025: 1 · 2024: 5 · 2023: 6 · 2022: 4 · 2021: 6 · 2020: 13 · 2019: 8 · 2018: 5 · 2017: 11 · 2016: 4 · 2015: 6 · 2014: 6 · 2013: 5 · 2012: 1
FWCI
7.16
Type
journal article
Language
en
Open access
Locations
  • Journal of Bone and Mineral Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • IUScholarWorks (Indiana University) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • Broad Institute
  • National Institutes of Health (1u01hl098166-01, UL1TR000439)
  • National Heart, Lung, and Blood Institute (U01-HL098166)
  • National Institute of General Medical Sciences (P20GM104937)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R21AR062326, K08AR063813, R01AR053237)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
Keywords
LRP5, mRNA expression, high bone mass, collagenase digestion, tibia, differentially expressed genes, bone mass regulation, mouse model
MeSH terms
Animals, Bone Marrow, Computer Simulation, Gene Expression Regulation, Humans, Male, Mutation, RNA, Messenger, Tibia, Reproducibility of Results, Gene Library, Sequence Analysis, RNA, Muscle, Skeletal, Diaphyses, Mice, Low Density Lipoprotein Receptor-Related Protein-5

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