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While small animal models are widely used to study IVD and LBP, the small size of their IVDs limits translational and biological relevance. Large animal models more accurately emulate human disease; however, methods of measuring LBP are not well established. Pigs were also considered unfit for LBP research, due to notochordal cells (NCs) persistence through life, unlike humans. We developed a comprehensive porcine model with quantitative measure of discogenic pain via biobehavioral testing (BBT), MRI, and multi-omics tissue analysis of IVD and DRGs. MRI demonstrated the progression of IVD degeneration beginning at 4 weeks post-injury. BBTs showed the development of significant pain responses by week 4 post-injury, supported by transcriptomics of injury matched DRGs. Single cell transcriptomics, trajectory and cell-cell communication analyses suggest that, with injury, NCs are differentiating to nucleus pulposus cells (NPCs). Furthermore, NPCs showed upregulation of cellular stress, neural outgrowth, and inflammation pathway, consistent with pain-inducing distress signals found in human samples. This study establishes novel MRI and BBT-based methods for quantifying LBP in pigs and supports its translational relevance to human discogenic LBP. The identification of LBP-associated clusters mirrors our previous finding in humans. Moreover, the shift of NC to NPC phenotype further supports that the porcine model is relevant to human pathology, as the injury induced accelerated aging and loss of NCs with IVD degeneration and discogenic pain.<\/jats:p>","DOI":"10.1101\/2025.11.24.690318","type":"posted-content","created":{"date-parts":[[2025,11,28]],"date-time":"2025-11-28T17:20:13Z","timestamp":1764350413000},"source":"Crossref","is-referenced-by-count":0,"title":["A Porcine Model of Intervertebral Disc Injury Recapitulates Human Discogenic Pain via Notochordal Cell Loss and Pain-inducing Nucleus Pulposus Cell Emergence"],"prefix":"10.64898","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0547-9060","authenticated-orcid":false,"given":"Giselle","family":"Kaneda","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-0770-4801","authenticated-orcid":false,"given":"Jacob 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