ArticleScientific reports2024
Single-cell sequencing reveals cellular heterogeneity of nucleus pulposus in intervertebral disc degeneration.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Surviving the Nucleus Pulposus Desert: Next-Generation Strategies for Intervertebral Disc Cell Therapy.JOR spine · 2026Article
- HDAC1 maintains metabolic homeostasis in nucleus pulposus cells via post-translational modification interactions with YBX1.Experimental & molecular medicine · 2026Article
- ACSL4-Dependent Lysosomal Lipid Peroxidation Links WTAP-Mediated mAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Identification and experimental validation of biomarkers associated with exercise in intervertebral disc degeneration through bulk RNA and single-cell RNA sequencing analysis.Scientific reports · 2026Article
- Integrative bulk and single-cell transcriptomic analyses reveal nucleus pulposus cell fibrosis as a therapeutic target in intervertebral disc degeneration and identify quercetin as a potential antifibrotic agent.Naunyn-Schmiedeberg's archives of pharmacology · 2026Article
- One-Stone-Three-Birds Biomimetic Oral Targeting Delivery Strategy for On-Demand Controlled Drug Release and Intervertebral Disc Degeneration Therapy.Exploration (Beijing, China) · 2026Article
- SPP1 in notochord cells modulates intervertebral disc degeneration through CD44 recognition by macrophages based on single-cell transcriptome analysis.International journal of surgery (London, England) · 2026Article
- Single-cell extracellular vesicle-program scoring maps immunometabolic rewiring and immune crosstalk of mesenchymal stromal cells in intervertebral disc degeneration, prioritizing AP2S1 and CSTB.Frontiers in immunology · 2026Article
- From Modic changes to the disc-endplate-bone marrow complex: imaging stratification, immune remodeling, and translational implications in intervertebral disc degeneration.Frontiers in immunology · 2026Review
- Mechanotransduction in intervertebral disc degeneration: from compartment-specific sensors to translational frontiers.Frontiers in bioengineering and biotechnology · 2026Review
- Immune Cell-Specific Regulatory Gene Prioritization in Low Back Pain Using Single-Cell eQTL-Informed Mendelian Randomization and Colocalization.Journal of pain research · 2026Article
- Transcriptomic and Functional Comparison of Cells Isolated From Healthy and Degenerated Ovine Intervertebral Discs.Journal of cellular and molecular medicine · 2026Article
- Natural products targeting programmed cell death: a novel therapeutic strategy for intervertebral disc degeneration.International journal of surgery (London, England) · 2026Review
- Integration of single-cell sequencing and machine learning identifies key macrophage-associated genetic signatures in lumbar disc degeneration.Frontiers in immunology · 2025Article
- Redox-associated gene and microRNA signatures in degenerative intervertebral disc disease.Molecular painArticle
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Authors and funding
12 authors.
Funding
Abstract
The nucleus pulposus (NP) plays a vital role in intervertebral disc degeneration (IVDD). Previous studies have revealed cellular heterogeneity in NP tissue during IVDD progression. However, the cellular and molecular alterations of diverse cell clusters during IVDD remain to be fully elucidated. NP tissues were isolated from patients with different grades of IVDD undergoing discectomy, and then subjected to single-cell RNA sequencing (scRNA-seq). Cell subsets were identified based on unbiased clustering of gene expression profiles. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to determine the molecular features of diverse cell clusters. Monocle analysis was used to illustrate the differentiation trajectories of chondrocytes. Additionally, CellPhoneDB analysis revealed potential interactions between chondrocytes and other cells during IVDD. Based on the expression profiles of 47,610 individual cells, eight putative clusters including chondrocytes, endothelial cells, fibroblasts, macrophages, mural cells, osteoclasts, proliferating stromal cells and T cells were identified. The chondrocyte cluster was classified into three subsets, C1-C3, which were associated with stress-resistance, fibrosis and inflammatory responses, respectively. Pseudo-time trajectories suggested that chondrocytes gradually differentiated into fibroblasts during IVDD. Immune cells including cDC2s, macrophages and monocytes were identified. Further analysis showed that chondrocytes might communicate with immune cells via the MIF, TNFSF9, SPP1 and CCL4L2 signaling pathways. In addition, we found that invading endothelial cells might interact with chondrocytes through the COL4A1, CXCL12, VEGFA and SEMA3E signaling pathways. Our results reveal the cellular complexity and phenotypic characteristics of NP tissues at single-cell resolution, which will contribute to the in-depth investigation of preventative and regenerative strategies for IVDD.
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