Multifunctional hypoxia imaging nanoparticles: multifunctional tumor imaging and related guided tumor therapy

Abstract

Jiajun Liu, Zeying Liu, Daocheng Wu Key Laboratory of Biomedical Information Engineering of Education Ministry, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, China Abstract: Hypoxia is a common feature of most solid tumors. Having a comprehensive understanding of tumor hypoxia condition is a key to tumor therapy. Many hypoxia imaging nanoparticles have been used for tumor detection. However, simple optical hypoxia imaging is not enough for tumor diagnosis. Also, the tumor therapy process needs the information about the tumor hypoxia condition. Recently, researchers developed multimodal hypoxia tumor imaging nanoparticles and multifunctional hypoxia imaging-guided tumor therapy nanoparticles. The multimodal hypoxia imaging could produce more tumor region information and engage in functional tumor imaging to better understand the tumor condition. The multifunctional hypoxia imaging-guided tumor therapy could monitor the tumor therapy process and evaluate tumor therapeutic effect. Meanwhile, many challenges and limitations are still remaining in the application of multifunctional hypoxia nanoparticles. In this review, we first introduce the types of multifunctional hypoxia imaging nanoparticles. Then we focus on multimodal hypoxia imaging nanoparticles and hypoxia imaging-guided tumor therapy nanoparticles. We also discuss the challenges and future perspectives of this field. There has not been many studies in this field for now. We hope this review would bring more researchers’ attention to this field so that it would substantially contribute to tumor precise therapy. Keywords: nanomedicines, theranostics, hypoxia probe, multimodal tumor imaging, imaging guided tumor therapy  

Keywords

• nanomedicines
• nanocarriers
• optical hypoxia sensor
• multimodal hypoxia tumor imaging
• imaging guided tumor therapy