ZBTB2 links p53 deficiency to HIF-1-mediated hypoxia signaling to promote cancer aggressiveness by Koyasu, S, Horita, S, Saito, K, Kobayashi, M, Ishikita, H, Chow, CC, Kambe, G, Nishikawa, S, Menju, T, Morinibu, A, Okochi, Y, Tabuchi, Y, Onodera, Y, Takeda, N, Date, H, Semenza, GL, Hammond, EM, Harada, H