Recognition of consensus CHO structure in ligands for selectins by novel antibody against sialyl Lewis X

1995 ◽  
Vol 269 (4) ◽  
pp. H1282-H1287 ◽  
Author(s):  
T. Tamatani ◽  
M. Suematsu ◽  
K. Tezuka ◽  
N. Hanzawa ◽  
T. Tsuji ◽  
...  

The selectins (L, E, and P) play an important role in the earliest events of the inflammatory response, leading to the “rolling” phenomenon. All selectins react with sialyl Lewis X (SLex) in vitro, possibly suggesting that their ligands have a consensus structure. 2H5 is a monoclonal antibody against SLex that blocks L-selectin-mediated adhesion. 2H5 inhibited adhesion of HL-60 cells to P- and E-selectin-producing COS cells in vitro and immunoprecipitated a P-selectin glycoprotein ligand-1-like glycoprotein from HL-60 cell lysate, suggesting that it recognizes a functional consensus structure on the ligands for all selectins. 2H5 reacted not only with human but also with rat and mouse neutrophils. 2H5 is the first antibody against SLex that recognizes neutrophils of nonhuman mammals. The carbohydrate structure recognized by 2H5 was present not only on high endothelial venules of rat lymphoid organs but also on the endothelial cells of nonlymphoid organs. Furthermore, administration of the antibody markedly inhibited L- and P-selectin-mediated neutrophil rolling and adhesion in rat mesenteric venules in vivo. These results provide evidence for the presence of a consensus carbohydrate structure on the ligands for all selectins. The consensus structure thus has the potential to serve as a therapeutic target.

1997 ◽  
Vol 230 (3) ◽  
pp. 546-551 ◽  
Author(s):  
Chikako Mitsuoka ◽  
Naoko Kawakami-Kimura ◽  
Mikiko Kasugai-Sawada ◽  
Nozomu Hiraiwa ◽  
Ken'ichi Toda ◽  
...  

2001 ◽  
Vol 281 (1) ◽  
pp. 237-243 ◽  
Author(s):  
Sunjoo Jeong ◽  
Tae-Yeon Eom ◽  
Se-Jin Kim ◽  
Seong-Wook Lee ◽  
Jaehoon Yu

2006 ◽  
Vol 282 (7) ◽  
pp. 4812-4820 ◽  
Author(s):  
Dooyoung Lee ◽  
Joanne B. Schultz ◽  
Philip A. Knauf ◽  
Michael R. King

The interaction of L-selectin expressed on leukocytes with endothelial cells leads to capture and rolling and is critical for the recruitment of leukocytes into sites of inflammation. It is known that leukocyte activation by chemoattractants, the change of osmotic pressure in cell media, or cross-linking of L-selectin all result in rapid shedding of L-selectin. Here we present a novel mechanism for surface cleavage of L-selectin on neutrophils during rolling on a sialyl Lewis x-coated surface that involves mechanical force. Flow cytometry and rolling of neutrophils labeled with Qdot®-L-selectin antibodies in an in vitro flow chamber showed that the mechanical shedding of L-selectin occurs during rolling and depends on the amount of shear applied. In addition, the mechanical L-selectin shedding causes an increase in cell rolling velocity with rolling duration, suggesting a gradual loss of L-selectin and is mediated by p38 mitogen-activated protein kinase activation. Thus, these data show that mechanical force induces the cleavage of L-selectin from the neutrophil surface during rolling and therefore decreases the adhesion of cells to a ligand-presenting surface in flow.


1998 ◽  
Vol 273 (18) ◽  
pp. 11225-11233 ◽  
Author(s):  
Chikako Mitsuoka ◽  
Mikiko Sawada-Kasugai ◽  
Keiko Ando-Furui ◽  
Mineko Izawa ◽  
Hayao Nakanishi ◽  
...  

2007 ◽  
Vol 353 (3) ◽  
pp. 553-558 ◽  
Author(s):  
Masahiko Hirai ◽  
Hideki Minematsu ◽  
Naoko Kondo ◽  
Kazunori Oie ◽  
Koichi Igarashi ◽  
...  

2020 ◽  
Vol 29 ◽  
pp. 096368972091270
Author(s):  
Pierre Edouard Dollet ◽  
Mei Ju Hsu ◽  
Jérôme Ambroise ◽  
Milena Rozzi ◽  
Joachim Ravau ◽  
...  

Adult-derived human liver stem/progenitor cells (ADHLSCs) are a promising alternative to orthotopic liver transplantation in the treatment of inborn errors of metabolism. However, as is the case with many mesenchymal stromal cells, ADHLSCs have shown a low level of engraftment, which could be explained by the fact that they lack expression of selectin ligand and LFA-1 and only slightly express VLA- 4, molecules that have been shown to be involved in cell adhesion to the endothelium. In this paper, we have investigated strategies to increase their rolling and adhesion during the homing process by (1) adding a selectin ligand (Sialyl Lewis X) to their surface using biotinyl- N-hydroxy-succinimide–streptavidin bridges, and (2) protecting the adhesion proteins from trypsinization-induced damage using a thermosensitive polymer for cell culture and a nonenzymatic cell dissociation solution (CDS) for harvest. Despite increasing adhesion of ADHLSCs to E-selectin during an adhesion test in vitro performed under shear stress, the addition of Sialyl Lewis X did not increase adhesion to endothelial cells under the same conditions. Cultivating cells on a thermosensitive polymer and harvesting them with CDS increased their adhesion to endothelial cells under noninflammatory conditions, compared to the use of trypsin. However, we were not able to demonstrate any improvement in cell adhesion to the endothelium following culture on polymer and harvest with CDS, suggesting that alternative methods of improving engraftment still need to be evaluated.


2004 ◽  
Vol 43 (5) ◽  
pp. A8 ◽  
Author(s):  
Erxiong Lu ◽  
Eric M Tom ◽  
Matundu M Felix ◽  
Joan Gretton ◽  
Rekhi P Varghese ◽  
...  

Blood ◽  
1993 ◽  
Vol 82 (5) ◽  
pp. 1632-1638 ◽  
Author(s):  
K Ley ◽  
TF Tedder ◽  
GS Kansas

Abstract Granulocyte recruitment during the acute inflammatory response is initiated by their rolling along the endothelial lining of postcapillary venules. To determine whether expression of L-selectin alone is sufficient for rolling, the murine pre-B lymphocytic cell line 300.19, which does not bind E- or P-selectin, was transfected with human L-selectin cDNA, which led to stable L-selectin expression at a level similar to that of blood lymphocytes. Fluorescent-labeled cells were infused retrogradely into a side branch of the superior mesenteric artery of anesthetized rats. In venules of the mesenteric membrane, leukocyte rolling occurs without intentional stimulation. On average, 17% +/- 6% of L-selectin transfectants rolled in the observed venules, while mock-transfected cells did not roll. Rolling of L-selectin transfectants began approximately 20 minutes after surgery and continued for at least 120 minutes. In contrast, HL-60 promyelocytes, which express sialyl-Lewis(x) tetrasaccharide (sLe(x)) but not L- selectin and that bind to E- and P-selectin in vitro, did not roll between 20 and 120 minutes, but some HL-60 cells rolled at very early (< 20 minutes) and late (> 2 hours) time points. Pretreatment with either of two function-blocking monoclonal antibodies recognizing the lectin domain of L-selectin completely blocked rolling of L-selectin transfectants and sharply reduced (by 70%) rolling of isolated human granulocytes. Taken together, these results show that L-selectin can mediate leukocyte rolling by virtue of its lectin activity.


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