Fig. 9From: Periostin promotes the proliferation and metastasis of osteosarcoma by increasing cell survival and activates the PI3K/Akt pathwaySTRING analysis of direct and indirect protein–protein interactions in OS indicates that POSTN has the most interactions. A Co-expressed gene PPI network. B DEGREE results of the top 7 genes according to the degree of connection. C Connection ranks of the 7 major genesBack to article page