Single-dose Intravenous Gammaglobulin Can Stabilize Neutrophil Mac-1 Activation in Sickle Cell Pain Crisis
Overview
Authors
Affiliations
Intravenous immunoglobulin (IVIG) decreases neutrophil adhesion to endothelium and red blood cell-neutrophil interactions in sickle cell mice undergoing vaso-occlusion. In this Phase I clinical trial of sickle cell anemia (SCA) patients admitted with pain crisis, we evaluated the status of adhesion molecules on neutrophils in control and IVIG-treated subjects pre- and post-infusion up to 800 mg/kg, the same dose used in murine studies. Mac-1 function significantly decreased from baseline in the low-dose IVIG (200-400 mg/kg) cohorts. IVIG-related adverse events may have occurred in the high-dose (600-800 mg/kg) cohorts. There were no significant increases in neutrophil and leukocyte counts, suggesting that IVIG may more selectively inhibit Mac-1 function as opposed to neutrophil adhesion. This study provides the first in-human validation of pre-clinical murine studies that IVIG can decrease Mac-1 function.
Current and Future Therapeutics for Treating Patients with Sickle Cell Disease.
Barak M, Hu C, Matthews A, Fortenberry Y Cells. 2024; 13(10.
PMID: 38786070 PMC: 11120250. DOI: 10.3390/cells13100848.
Sickle cell vaso-occlusion: The dialectic between red cells and white cells.
Conran N, Embury S Exp Biol Med (Maywood). 2021; 246(12):1458-1472.
PMID: 33794696 PMC: 8243211. DOI: 10.1177/15353702211005392.
Sickle cell disease: progress towards combination drug therapy.
Pace B, Starlard-Davenport A, Kutlar A Br J Haematol. 2021; 194(2):240-251.
PMID: 33471938 PMC: 8282668. DOI: 10.1111/bjh.17312.
Current and novel therapies for the prevention of vaso-occlusive crisis in sickle cell disease.
Osunkwo I, Manwani D, Kanter J Ther Adv Hematol. 2020; 11:2040620720955000.
PMID: 33062233 PMC: 7534097. DOI: 10.1177/2040620720955000.
Drug Therapies for the Management of Sickle Cell Disease.
Rai P, Ataga K F1000Res. 2020; 9.
PMID: 32765834 PMC: 7388199. DOI: 10.12688/f1000research.22433.1.