Induction of intrinsic apoptosis in leukaemia stem cells and in vivo zebrafish model by betulonic acid isolated from Walsura pinnata Hassk (Meliaceae)

Kok Hoong Leong, Mohamad Azrul Mahdzir, Mohd Fadzli Md Din, Khalijah Awang, Yuka Tanaka, Kasem Kulkeaw, Tohru Ishitani, Daisuke Sugiyama