PI3K target based novel cyano derivative of betulinic acid induces its signaling inhibition by down-regulation of pGSK3β and cyclin D1 and potentially checks cancer cell proliferation - Majeed, R; Hussain, A; Sangwan, P L; Chinthakindi, P K; Khan, I; Sharma, P R; Koul, S; Saxena, A K; Hamid, A (Mol Carcinog, 2016)