Antigenically shielded universal red blood cells by polydopamine-based cell surface engineering

2014 ◽  
Vol 5 (9) ◽  
pp. 3463-3468 ◽  
Author(s):  
Ben Wang ◽  
Guangchuan Wang ◽  
Binjie Zhao ◽  
Jiajun Chen ◽  
Xueyun Zhang ◽  
...  

A strategy of surface engineering by using polydopamine was developed to shelter antigens on red blood cells and prevent coagulation reactions.

2020 ◽  
Vol 6 (12) ◽  
pp. eaaw9679 ◽  
Author(s):  
Yueqi Zhao ◽  
Mingjie Fan ◽  
Yanni Chen ◽  
Zhaoming Liu ◽  
Changyu Shao ◽  
...  

Rhesus D (RhD) is one of the most important immunogenic antigens on red blood cells (RBCs). However, the supply of RhD-negative blood frequently faces critical shortages in clinical practice, and the positive-to-negative transition of the RhD antigen remains a great challenge. Here, we developed an alternative approach for sheltering the epitopes on RhD-positive RBCs using a surface-anchored framework, which is flexible but can achieve an optimal shield effect with minimal physicochemical influence on the cell. The chemical framework completely obstructed the RhD antigens on the cell surface, and the assessments of both blood transfusion in a mouse model and immunostimulation with human RhD-positive RBCs in a rabbit model confirmed the RhD-epitope stealth characteristics of the engineered RBCs. This work provides an efficient methodology for improving the cell surface for universal blood transfusion and generally indicates the potential of rationally designed cell surface engineering for transfusion and transplantation medicine.


1984 ◽  
Vol 74 (1) ◽  
pp. 173-180 ◽  
Author(s):  
Shoji Maruyama ◽  
Masahiko Sugiura ◽  
Michio Nakazawa ◽  
Hiroko Tomiyama ◽  
Miyuki Shizawa ◽  
...  

2020 ◽  
Author(s):  
Matthew R. Naticchia ◽  
Logan K. Laubach ◽  
honigfort Daniel J. ◽  
purcell Sean C. ◽  
Kamil Godula

Cell surface engineering with synthetic glycomimetic co-receptors for FGF2 was used to establish gradients of stem cells with enhanced FGF2 affinity in embryoid bodies (EBs). Gradient shape was controlled by pre-assembly of glycomimetics into nanoscale vesicles with tunable dimensions and EB penetrance. <br>


2018 ◽  
Vol 24 (32) ◽  
pp. 8042-8050 ◽  
Author(s):  
Xiaobao Bi ◽  
Juan Yin ◽  
Ashley Chen Guanbang ◽  
Chuan-Fa Liu

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