scholarly journals Novel whole blood assay for phenotyping platelet reactivity in mice identifies ICAM-1 as a mediator of platelet-monocyte interaction

Blood ◽  
2015 ◽  
Vol 126 (10) ◽  
pp. e11-e18 ◽  
Author(s):  
Paul C. J Armstrong ◽  
Nicholas S. Kirkby ◽  
Melissa V. Chan ◽  
Michaela Finsterbusch ◽  
Nancy Hogg ◽  
...  

Key PointsLow-volume, high-throughput whole blood aggregometry will facilitate future mouse platelet function research. Application of this approach identifies ICAM-1 as a novel mediator of platelet-monocyte interaction through fibrinogen binding.

2019 ◽  
Vol 73 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Amin Polzin ◽  
Carolin Helten ◽  
Lisa Dannenberg ◽  
Philipp Mourikis ◽  
David Naguib ◽  
...  

2017 ◽  
Vol 22 (4) ◽  
pp. 425-432 ◽  
Author(s):  
Tom Bretschneider ◽  
Andreas Harald Luippold ◽  
Helmut Romig ◽  
Daniel Bischoff ◽  
Klaus Klinder ◽  
...  

Autotaxin (ATX) is a promising drug target for the treatment of several diseases, such as cancer and fibrosis. ATX hydrolyzes lysophosphatidyl choline (LPC) into bioactive lysophosphatidic acid (LPA). The potency of ATX inhibitors can be readily determined by using fluorescence-based LPC derivatives. While such assays are ultra-high throughput, they are prone to false positives compared to assays based on natural LPC. Here we report the development of ultrafast mass spectrometry–based ATX assays enabling the measurement of data points within 13 s, which is 10 times faster than classic liquid chromatography–mass spectrometry. To this end, we set up a novel in vitro and whole-blood assay. We demonstrate that the potencies determined with these assays are in good agreement with the in vivo efficacy and that the whole-blood assay has the best predictive power. This high-throughput label-free approach paired with the translatable data quality is highly attractive for appropriate guidance of medicinal chemists for constructing strong structure-activity relationships.


2019 ◽  
Vol 3 (19) ◽  
pp. 2778-2789 ◽  
Author(s):  
Madelaine Duarte ◽  
Maragatha Kuchibhatla ◽  
Sanjay Khandelwal ◽  
Gowthami M. Arepally ◽  
Grace M. Lee

Key Points In a whole blood assay, ICs cause neutrophil activation and degranulation. Individuals have a fixed susceptibility to neutrophil activation by ICs.


2018 ◽  
Vol 200 (8) ◽  
pp. 3008-3019 ◽  
Author(s):  
Wendy E. Whatney ◽  
Neel R. Gandhi ◽  
Cecilia S. Lindestam Arlehamn ◽  
Azhar Nizam ◽  
Hao Wu ◽  
...  

1983 ◽  
Vol 50 (04) ◽  
pp. 814-820 ◽  
Author(s):  
J A Bergeron ◽  
J M DiNovo ◽  
A F Razzano ◽  
W J Dodds

SummaryThe previously described native whole blood assay for materials in solution or suspension has been adapted to materials in a bead column configuration. These experiments showed that the glass itself accounts for little or none of the high blood-reactivity observed with conventional glass bead columns. Columns composed solely of soft glass that was “cleaned” by heat treatment (500-595° C 18 hr, electric oven) were benign toward flowing native whole blood for all variables measured (platelet count and platelet-free plasma [C14]-serotonin content, platelet factor 3 and factor XII activities, and recalcification time) with the standard contact protocol. In addition, the effluent successfully maintained perfusion of the isolated kidney, a measure of the ability of platelets to support vascular integrity. Prolonged (30 min) normothermic contact with titrated whole blood increased the subsequent reactivity of initially clean glass toward whole blood albeit to a level much less than that of conventional glass bead columns.


2021 ◽  
pp. 67-87
Author(s):  
Klaus Görlinger ◽  
James Iqbal ◽  
Daniel Dirkmann ◽  
Kenichi A. Tanaka

2020 ◽  
Vol 310 (3) ◽  
pp. 151411
Author(s):  
Daria Gaidar ◽  
Alice Jonas ◽  
Ruslan Akulenko ◽  
Ulla Ruffing ◽  
Mathias Herrmann ◽  
...  

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