Nucleus pulposus core proteins (NP core proteins)

The nucleus pulposus, the inner core of the spinal intervertebral disc, is characterized by a matrix rich in proteoglycans (especially aggrecan), various collagens (mainly type II, plus types I, VI, IX, XI, XII, XIV, XV), and glycoproteins (such as fibronectin and biglycan)[2][3][4][5]. These proteins form a structure that functions as a water-retaining, shock-absorbing cushion, allowing flexibility and stability in the spinal column[2][3][5]. The composition and ratio of these proteins change with age and degeneration, influencing disc health and disease. While not a single target, they are being explored as readouts or indirect targets for regenerative spine therapies[1][4]. Key clarification: - The term "Nucleus pulposus core proteins" is not a well-defined molecular target, but is a collective descriptor for several ECM proteins in the nucleus pulposus. It does not correspond to a canonical molecule, receptor, enzyme, or gene and should not be listed as a therapeutic target in databases—this makes is_incorrect: true[2][3][4][5]. - This set of proteins is clinically relevant for tissue engineering and biomarker development, but currently lacks direct pharmacological interventions. For structured data mapping, individual proteins should be listed separately (e.g., Aggrecan, Collagen type II alpha 1, Fibronectin, etc.), each with their own canonical names and attributes, rather than the group descriptor "Nucleus pulposus core proteins".

Other names

Nucleus pulposus matrisomeNP ECM proteinsIntervertebral disc nucleus core proteins

Indirect: Promotion of matrix synthesis and tissue regeneration (e.g., recombinant BMP7 or GDF5 induces production of core proteins for disc regeneration)