Abstract
Matrix viscoelasticity has important roles in regulating key chondrocyte
processes in normal development and osteoarthritis (OA) degeneration of
articular cartilage. In recent years, scientists are gradually realizing
the importance of matrix viscoelasticity in regulating chondrocyte
function and reversing cell phenotype. Notably, this is an emerging
field, and this review summarizes the existing literature to the best of
our knowledge. This review provides an overview of the viscoelastic
properties of hydrogels and the role of matrix viscoelasticity in
directing chondrocyte behavior. In this Review, we elaborated the
mechanotransuction mechanisms by which cells sense and respond to the
viscoelastic environment and also discussed the underlying signaling
pathways. We discuss recent work elucidating the effect of matrix
viscoelasticity on chondrocyte behavior, and describe the potential for
the use of viscoelastic biomaterials in cartilage tissue engineering and
regenerative medicine. some future perspective on mechanobiological
comprehension of the viscoelastic behaviors involved in tissue
homeostasis, cellular responses and biomaterial design are highlighted.
Finally, this review also highlights recent strategies utilizing
viscoelastic hydrogels for designing cartilage-on-chip.