Intervertebral disc degeneration, a loose definition for a more complex pathology? Insights from aging inbred mouse strains
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PROVIDER: PRJNA556877 | ENA |
REPOSITORIES: ENA
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Project description:Intervertebral disc degeneration is an important contributor to chronic low back pain. While a wide spectrum of clinically relevant degenerative disc phenotypes have been observed during aging, their molecular underpinning have not been established. We used microarrays to explore the transcriptomics of differentially expressed genes during aging (6M to 23M) in two strains: C57BL/6 and LG/J.
2020-06-08 | GSE134955 | GEO
Project description:Intervertebral disc degeneration
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Project description:Asporin, also known as periodontal ligament-associated protein 1 (PLAP1), is a member of the family of small leucine-rich proteoglycan (SLRP) family. It is present within the cartilage extracellular matrix (ECM), and is reported have a genetic association with osteoarthritis. Its D14 allele has recently been found to be associated with lumbar disc degeneration in Asian subjects. There have been no studies, however, of this gene’s normal immunohistochemical localization within the human intervertebral disc, nor of expression levels in Caucasian individuals with disc degeneration. Studies were approved by our human subjects Institutional Review Board. Methods included immunohistochemical localization of asporin in the disc of humans and the sand rat (a small rodent with spontaneous age-related disc degeneration), and Affymetrix microarray analysis of asporin gene expression in vivo and in vitro. mmunohistochemical studies of human discs revealed that some, but not all, cells of the outer annulus expressed asporin. Fewer cells in the inner annulus contained asporin, and it was rarely present in cells in the nucleus pulposus. Similar patterns were found for the presence of asporin in lumbar discs of sand rats. Substantial relative gene expression levels were seen for asporin in both disc tissue and in annulus cells grown in three-dimensional culture. More degenerate human discs (Thompson grade 4) showed higher expression levels of asporin than did less degenerate (grade 1, 2 and 3) discs, p = 0.004. In the discs of Caucasian subjects studied here, and in the sand rat, greater immunolocalization levels were found in the outer compared to inner annulus. Localization was rare in the nucleus. Gene expression studies showed greatest expression of asporin in the more degenerate human discs in vivo.
2009-03-24 | GSE15227 | GEO
Project description:Asporin, also known as periodontal ligament-associated protein 1 (PLAP1), is a member of the family of small leucine-rich proteoglycan (SLRP) family. It is present within the cartilage extracellular matrix (ECM), and is reported have a genetic association with osteoarthritis. Its D14 allele has recently been found to be associated with lumbar disc degeneration in Asian subjects. There have been no studies, however, of this gene’s normal immunohistochemical localization within the human intervertebral disc, nor of expression levels in Caucasian individuals with disc degeneration. Studies were approved by our human subjects Institutional Review Board. Methods included immunohistochemical localization of asporin in the disc of humans and the sand rat (a small rodent with spontaneous age-related disc degeneration), and Affymetrix microarray analysis of asporin gene expression in vivo and in vitro. mmunohistochemical studies of human discs revealed that some, but not all, cells of the outer annulus expressed asporin. Fewer cells in the inner annulus contained asporin, and it was rarely present in cells in the nucleus pulposus. Similar patterns were found for the presence of asporin in lumbar discs of sand rats. Substantial relative gene expression levels were seen for asporin in both disc tissue and in annulus cells grown in three-dimensional culture. More degenerate human discs (Thompson grade 4) showed higher expression levels of asporin than did less degenerate (grade 1, 2 and 3) discs, p = 0.004. In the discs of Caucasian subjects studied here, and in the sand rat, greater immunolocalization levels were found in the outer compared to inner annulus. Localization was rare in the nucleus. Gene expression studies showed greatest expression of asporin in the more degenerate human discs in vivo. Disc Tissue samples were obtained via the National Cancer Institute Cooperative Tissue Network (CHTN) as well as surgical disc procedures performed on patients with herniated discs and degenerative disc disease. Tissue was fixed and paraffin embedded. Standard laser capture microdissection (LCM) techniques were used to collect the cells from which total RNA was isolated and analyzed via microarray. Based on the Thompson scouring system, unhealthy discs (grade 4) were compared to healthy discs (grades 2,3).
2009-03-24 | E-GEOD-15227 | biostudies-arrayexpress
Project description:Herniation of the intervertebral disc (IVDH) is the most common cause of neurological and intervertebral disc degeneration-related diseases. Since the disc starts to degenerate before it can be observed by currently available diagnostic methods, there is an urgent need for novel diagnostic approaches. To identify molecular networks and pathways which may play important roles in intervertebral disc herniation, as well as to reveal the potential features which could be useful for monitoring disease progression and prognosis, multi-omics profiling including high-resolution LC-MS-based metabolomics and proteomics was performed. Furthermore, multi-omics data were integrated to decipher a complex interaction between individual omic layers leading to improved prediction model. Together with metabolic pathways related to amino acids and lipid metabolism, and coagulation cascades, our integromics prediction model identified the key features in IVDH, namely the proteins FSTL1, SCG5, NUCB1 and CRSP2 and the metabolites N-acetyl-D-glucosamine and adenine, involved in neuropathic pain, myelination, neurotransmission and inflammatory response, respectively. Their clinical application is to be further investigated. The utilization of novel integrative interdisciplinary strategy may provide opportunities to apply the innovative diagnostic and monitoring methods for degenerative spinal disorders.
2021-11-04 | MTBLS2689 | MetaboLights
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Project description:Intervertebral disc (IVD) degeneration is a leading contributor to chronic low back pain, a condition with significant socioeconomic and healthcare burdens worldwide. Despite its prevalence, early diagnosis and effective, targeted therapies for IVD degeneration remain limited, largely due to an incomplete understanding of the molecular mechanisms underlying disease onset and progression. Traditionally, research has focused on the local disc environment, but emerging evidence suggests that systemic factors — particularly those circulating in the bloodstream — may play a critical role in disc homeostasis and degeneration. The plasma proteome, representing a dynamic collection of circulating proteins, offers a powerful window into systemic physiological states. Advances in high-throughput proteomics now make it possible to detect subtle yet biologically significant shifts in circulating protein profiles, potentially unveiling biomarkers indicative of tissue-specific changes, including those occurring in the intervertebral disc. However, the systemic proteomic landscape associated with IVD degeneration remains underexplored. This project aims to leverage plasma proteomics to uncover systemic protein biomarkers linked to IVD degeneration. By comparing the plasma profiles of individuals with varying degrees of disc degeneration to those of healthy controls, we seek to identify protein signatures reflective of disc pathology. These findings could not only improve early detection and monitoring strategies but also provide novel insights into systemic contributors to disc disease, paving the way for more personalized and effective therapeutic approaches.
2025-12-15 | PXD063403 | Pride
Project description:We report the single-cell RNA-seq (scRNA-seq) data for human neonatal and adult human intervertebral disc (IVD) scRNA-seq. We sequenced cells harvested from three IVDs of a neonatal baby and one IVD from an adult cadaver.
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