CHIR99021

1. CHIR99021 induces cellular senescence in human cells.

   “Although GSK3β inhibitor-mediated expansion increased hiPSC-CM yield, it induced telomere shortening, elevated DNA damage, and upregulation of senescence-associated markers”

   Cellsin vitro expansion of hiPSC-CMs

   Senescence modulated cardiac repair with pluripotent stem cell-derived cardiomyocytes

   Stem cell research & therapy·10 Jun 2026

2. CHIR99021 decreases cellular senescence in cells (no senescence dye uptake at all).

   “Senescence assays after CHIR 99021 treatment also revealed no senescence dye uptake at all.”

   Cellslate-passage MSCs

   Inhibition of GSK-3β Restores Differentiation Potential of Late-Passage Mesenchymal Stem Cells

   Pharmaceuticals (Basel, Switzerland)·28 Mar 2025

More on Cellular senescence

1. CHIR99021 decreases cell death in mice.

   “CHIR99021 mitigated RGC loss”

   Animalsintravitreal injection in COH mice

   PRMT5 Regulates Senescence in Retinal Ganglion Cells by Targeting the Wnt/β-Catenin Signaling Cascade

   Investigative ophthalmology & visual science·2 Jun 2025

1. CHIR99021 improves tri-lineage differentiation potential in cells.

   “CHIR 99021 reversed the differentiation inhibitory potential-mediated impasse of late-passage MSCs”

   Cellslate-passage MSCs (>P15)

   Inhibition of GSK-3β Restores Differentiation Potential of Late-Passage Mesenchymal Stem Cells

   Pharmaceuticals (Basel, Switzerland)·28 Mar 2025