ABSTRACT
Angiogenesis inhibitors can make tumor cells in a harsh environment by inhibiting tumor angiogenesis and effectively blocking the tumor progression.However,anti-angiogenic drugs have shown lots of limitations,such as short-term duration,numerous adverse reactions,benefiting only a minority of tumor types and so on.These limitations restrain the development of new drugs and limit the cancer therapies.Many studies have revealed that tumor cells can escape from anti-angiogenic treatments through a variety of ways and mechanisms.In this review,we focus on the reasons behind the failure in treatments,so as to propose solving strategies to improve the current anti-angiogenic drug efficacy and provide reference for new angiogenesis inhibitors and clinical medication.