Dichotomous SMAD2/3 regulation and selective antihypertrophic activity of heparin during in vitro chondrogenesis of mesenchymal stromal cells. - Schmidt S; Chasan S; Dietmar HF; Klampfleuthner FAM; Hesse E; Walker T; Freudenberg U; Richter W; Diederichs S (Cellular & molecular biology letters, 2026)