proper S6K /BTK and PLCγ2 are main regulations for thromboxane-A synthesis, and necessary for B-cell maturations and T-cells modulations and functions. The main factors that cause the Osteoarthritis “OA” and diabetes and linked between them are the deficiency of Ser amino acids and decreasing or down regulations of Ser phosphorylation signalling pathway which necessary for proper S6K productions, where normally the Ser phosphorylation signalling pathway is the basis of Ser /Thr phosphorylation signalling which normally necessary for proper Akt, S6K1 synthesis and necessary for RORs and IFNs synthesis and also necessary for running proper BTK and proper PLCγ2 productions , where S6K is main regulator for ATPase and for proper PLCγ1 and for PLCγ2 synthesis which necessary for bone growth and for increasing and modulating immune efficiency