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中国生物工程杂志

China Biotechnology
China Biotechnology  2023, Vol. 43 Issue (6): 69-75    DOI: 10.13523/j.cb.2301003
    
Recombinant Malaria Protein rVAR2 and Its Application in Tumor-targeted Therapy
JIANG Jin-lu1,2,PAN Hai-feng2,3,YU Si-yuan2,3,LI Ting-dong2,3,GE Sheng-xiang2,3,**()
1 School of Life Science, National Institute of Diagnostics and Vaccine Development in Infectious Disease, Xiamen University, Xiamen 361102, China
2 Department of Laboratory Medicine, School of Public Health, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Xiamen University, Xiamen 361102, China
3 Collaborative Innovation Center of Biological Products, Xiamen University, Xiamen 361102, China
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Abstract  

Malignant tumor is considered to be one of the main causes of human death, and its morbidity and mortality are increasing by years. Tumor-targeted drugs can act precisely on tumors and have gained a lot of attention in recent years. Specific identification and extensive binding to tumor cells are key to achieving tumor-targeted therapy, and the lack of effective and specific pan-tumor targeting tools has greatly limited the further development of tumor-targeted therapy. Compared with existing tumor targeting approaches, Plasmodium recombinant protein rVAR2 can specifically bind Oncofetal chondroitin sulfate (ofCS), which is widely expressed on the surface of tumor cells, and has the advantage of pan-tumor targeting, providing a new idea for tumor targeting therapy. In this paper, we analyze and summarize the characteristics of rVAR2 and its progress in tumor-targeted therapy in recent years, and discuss its future development direction, in order to provide a reference for the development of clinical tumor-targeted therapy and diagnosis methods.



Key wordsVAR2CSA      rVAR2      Chondroitin sulfate      Oncofetal chondroitin sulfate (ofCS)      Tumor targeting     
Received: 03 January 2023      Published: 04 July 2023
ZTFLH:  Q819  
Cite this article:

JIANG Jin-lu, PAN Hai-feng, YU Si-yuan, LI Ting-dong, GE Sheng-xiang. Recombinant Malaria Protein rVAR2 and Its Application in Tumor-targeted Therapy. China Biotechnology, 2023, 43(6): 69-75.

URL:

https://manu60.magtech.com.cn/biotech/10.13523/j.cb.2301003     OR     https://manu60.magtech.com.cn/biotech/Y2023/V43/I6/69

Fig.1 Schematic illustration of VAR2CSA and recombinant VAR2CSA (rVAR2)
Fig.2 rVAR2 binds to CSA specifically expressed on placenta and tumor cells
肿瘤靶向元件 靶向原理 优势 局限性 参考文献
iRGD 识别并结合血管整合素 血管整合素在肿瘤组织部位高表达;能够内化到细胞中 由于血管整合素在其他组织广泛表达,iRGD靶向肿瘤的特异性有限 [45-46,48 -49]
抗体 结合肿瘤相关抗原 高特异性和高亲和力 由于肿瘤异质性,抗体靶向的通用性有限 [13,50]
环境响应型元件 根据环境生物化学特性(pH值、温度等)进行靶向 种类多样化 通用性有限;难以大规模制备 [51?-53]
核酸适配体 靶向肿瘤细胞膜上的高表达蛋白质 高特异性和高亲和力 体内稳定性差;存在安全性问题 [54?-56]
rVAR2 识别并结合肿瘤细胞表面的癌胚硫酸软骨素 癌胚硫酸软骨素在肿瘤中表达广泛,rVAR2与其结合具有高特异性;能够内化到细胞中 分子量大;内吞小泡逃逸效率低 [36,57]
Table 1 Comparison of different tumor targeting elements
应用 细胞或肿瘤模型 参考文献
rVAR2偶联白喉毒素(DT388) 小鼠黑色素瘤细胞(B16-F10),人前列腺癌细胞(PC-3)荷瘤模型 [36]
rVAR2偶联哈米特林(Hemiasterlin)类似物(KT886) 小鼠乳腺癌细胞(4T1),人间变性大细胞淋巴瘤细胞(Karpas 299)荷瘤模型,人前列腺癌细胞(PC-3)荷瘤模型,人膀胱癌细胞(UM-UC13)荷瘤模型等 [36,58]
rVAR2偶联单甲基耳他汀E(MMAE) 人非小细胞肺癌细胞(A549)及其荷瘤模型 [59]
rVAR2偶联抗CD3抗体 人膀胱移行癌细胞(UM-UC-3)及其荷瘤模型 [60]
rVAR2修饰及血小板膜包被的纳米颗粒(rVAR2-PM /PLGA-ss-HA) 小鼠黑色素瘤细胞(B16- F10)及其荷瘤模型 [61]
Table 2 Applications of rVAR2 protein in tumor-targeted therapy
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