Integrated post-GWAS, single-cell, and functional analyses prioritize TCTN2 at an osteoarthritis locus associated with innate immunity-related cartilage remodeling - Takeaways - MDSpire

Integrated post-GWAS, single-cell, and functional analyses prioritize TCTN2 at an osteoarthritis locus associated with innate immunity-related cartilage remodeling

  • By

  • Changchun Lu

  • Lei Wang

  • Xinqi Cao

  • Kun Zhao

  • Nuo Yin

  • Dong Zhang

  • July 6, 2026

  • 0 min

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  • 1

    The study integrates post-GWAS data with single-cell biology to refine an osteoarthritis susceptibility locus centered on TCTN2.

  • 2

    A Transformer-based prioritization model scored over 20 million variants, identifying 17,150 high-priority variants linked to osteoarthritis.

  • 3

    TCTN2 showed significant support across multiple tissues and was linked to regulatory and inflammatory chondrocyte states.

  • 4

    Independent validation indicated higher TCTN2 abundance in osteoarthritis cartilage compared to normal cartilage.

  • 5

    ATDC5 cell experiments demonstrated that Tctn2 knockdown altered expression of hypertrophic markers, suggesting its functional role.

Original Source(s)

Integrated post-GWAS, single-cell, and functional analyses prioritize TCTN2 at an osteoarthritis locus associated with innate immunity-related cartilage remodeling

  • by Changchun Lu, Lei Wang, Xinqi Cao, Kun Zhao, Nuo Yin, Dong Zhang

  • July 6, 2026

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