Cell migration is essential for the formation of granulation tissue. The early stage of granulation tissue is dominated by a HA-rich extracellular matrix, which is regarded as a conducive environment for the migration of cells into this temporary wound matrix. Contributions of HA to cell migration may attribute to its physicochemical properties as stated above, as well as its direct interactions with cells. For the former scenario, HA provides an open hydrated matrix that facilitates cell migration, whereas, in the latter scenario, directed migration and control of the cell locomotory mechanisms are mediated via the specific cell interaction between HA and cell surface HA receptors. As discussed before, the three principal cell surface receptors for HA are CD44, RHAMM, and ICAM-1. RHAMM is more related to cell migration. It forms links with several protein kinases associated with cell locomotion, for example, extracellular signal-regulated kinase (ERK), focal adhesion kinase (FAK), and other non-receptor tyrosine kinases. During fetal development, the migration path through which neural crest cells migrate is rich in HA. HA is closely associated with the cell migration process in granulation tissue matrix, and studies show that cell movement can be inhibited, at least partially, by HA degradation or blocking HA receptor occupancy. Buy supartz inection online.
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