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©The Author(s) 2025.
World J Stem Cells. Sep 26, 2025; 17(9): 109662
Published online Sep 26, 2025. doi: 10.4252/wjsc.v17.i9.109662
Table 2 Post-translational modification-mediated crosstalk mechanisms in osteogenic signaling
PTM type
Molecular target
Pathway interaction
Functional consequence
Ref.
Acetylationβ-catenin (Lys49)Wnt-BMP synergyEnhanced β-catenin/SMAD1 complex stability[33,37-39]
MethylationSMAD4 (Arg37)BMP-Wnt-PI3K integrationFacilitated β-catenin nuclear translocation[41-43]
LactylationH3K18 histone markMetabolic-epigenetic couplingChromatin priming at osteogenic loci[44,46,47]
PhosphorylationGSK3β (Ser9)PI3K-Wnt crosstalkβ-catenin stabilization[35,36]
UbiquitinationSMAD1 (Lys519)BMP-TGFβ balanceRegulation of SMAD1/2/3 stoichiometry[52,53]


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