@article{Cao:2022:10.1111/bjh.18164,
author = {Cao, H and Mathur, A and Robertson, C and Antonopoulos, A and Henderson, S and Girard, L-P and Wong, JH and Davie, A and Wright, S and Brewin, J and Rees, DC and Dell, A and Haslam, SM and Vickers, MA},
doi = {10.1111/bjh.18164},
journal = {British Journal of Haematology},
pages = {155--164},
title = {Measurement of erythrocyte membrane mannoses to assess splenic function},
url = {http://dx.doi.org/10.1111/bjh.18164},
volume = {198},
year = {2022}
}

Download

TY  - JOUR
AB  - Red blood cells (RBCs) lose plasma membrane in the spleen as they age, but the cells and molecules involved are yet to be identified. Sickle cell disease and infection by Plasmodium falciparum cause oxidative stress that induces aggregates of cross-linked proteins with N-linked high-mannose glycans (HMGs). These glycans can be recognised by mannose-binding lectins, including the mannose receptor (CD206), expressed on macrophages and specialised phagocytic endothelial cells in the spleen to mediate the extravascular haemolysis characteristic of these diseases. We postulated this system might also mediate removal of molecules and membrane in healthy individuals. Surface expression of HMGs on RBCs from patients who had previously undergone splenectomy was therefore assessed: high levels were indeed observable as large membrane aggregates. Glycomic analysis by mass spectrometry identified a mixture of Man5-9GlcNAc2 structures. HMG levels correlated well with manual pit counts (r = 0.75–0.85). To assess further whether HMGs might act as a splenic reticuloendothelial function test, we measured levels on RBCs from patients with potential functional hyposplenism, some of whom exhibited high levels that may indicate risk of complications.
AU  - Cao,H
AU  - Mathur,A
AU  - Robertson,C
AU  - Antonopoulos,A
AU  - Henderson,S
AU  - Girard,L-P
AU  - Wong,JH
AU  - Davie,A
AU  - Wright,S
AU  - Brewin,J
AU  - Rees,DC
AU  - Dell,A
AU  - Haslam,SM
AU  - Vickers,MA
DO  - 10.1111/bjh.18164
EP  - 164
PY  - 2022///
SN  - 0007-1048
SP  - 155
TI  - Measurement of erythrocyte membrane mannoses to assess splenic function
T2  - British Journal of Haematology
UR  - http://dx.doi.org/10.1111/bjh.18164
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000780977800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://onlinelibrary.wiley.com/doi/10.1111/bjh.18164
UR  - http://hdl.handle.net/10044/1/96613
VL  - 198
ER  - 

Download