#SmoothMuscleCell #Aging Mechanobiology
24- vs 4-mo
Rat soleus muscle feed artery
⏬Myogenic tone (so flat 45~135 cmH2O! Learn new knowledge😋)▶️rescued by 1h 130 cmH2O pretreatment
Cultured Aged SMC
👉Bulk RNAseq ⏬SMC contractile markers
#FocalAdhesion
👉Faster kinetics (⏫SM α-actin filamentation ⏫vinculin clustering) to biaxial
#CyclicStretch
👉Inert to Pressure➡️⏬SM α-actin filament on soft 4 kPa matrix
👉Sensitized to Pressure➡️⏫SM α-actin filament ⏫integrin β1 clustering on stiff 100 kPa matrix
Andreea Trache lab
@FrontPhysiol 2025
frontiersin.org/journals/phy…