Article ; Online: Combination of CLEC4M rs868875 G-Carriership and ABO O Genotypes May Predict Faster Decay of FVIII Infused in Hemophilia A Patients
Journal of Clinical Medicine, Vol 11, Iss 733, p
2022 Volume 733
Abstract: ... in twenty-six patients (FVIII:C ≤ 2 IU/dL). F8 , ABO blood-groups, and the CLEC4M rs868875A/G polymorphism ... rs868875A/G and ABO genotypes displayed significant interaction (K 1-0, p = 0.014). Compared ... to other combined genotypes, the G-carriers/O genotypes showed half-reduced K 1-0 HL ( p = 0.008), and faster FVIII ...
Abstract | The C-type lectin CLEC4M binds and internalizes factor VIII (FVIII). Common CLEC4M variants have been associated with FVIII pharmacokinetic (PK) profiles in hemophilia A (HA) patients. The two-compartment PK analysis of plasma-derived (pd-) and full length recombinant FVIII concentrates was conducted in twenty-six patients (FVIII:C ≤ 2 IU/dL). F8 , ABO blood-groups, and the CLEC4M rs868875A/G polymorphism were genotyped. CLEC4M genotype groups differed for the elimination rate constant K 1-0 ( p < 0.001), half-life (K 1-0 HL), and the Beta rate constant. Patients treated with pd-FVIII also differed in the Alpha phase. In linear regression models, the contribution of the CLEC4M genotypes to FVIII PK parameters remained significant after correction for ABO , age, and VWF antigen levels at PK. Combined CLEC4M rs868875A/G and ABO genotypes displayed significant interaction (K 1-0, p = 0.014). Compared to other combined genotypes, the G-carriers/O genotypes showed half-reduced K 1-0 HL ( p = 0.008), and faster FVIII clearance (mean 7.1 ± 2.2 mL/h/kg SE) than in the G-carriers/non-O (mean 2.4 ± 0.3 mL/h/kg SE), ( p = 0.038). Comparison in HA patients recruited in several countries suggests that CLEC4M genotypes coherently influence infused FVIII half-life and clearance. Our analysis supports substantially faster FVIII decay associated with the rs868875 G-carrier/ ABO O genotypes, which has potential implications for genetically tailored substitutive HA treatment. |
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Keywords | CLEC4M ; CLEC4M SNPs ; factor VIII ; haemophilia A ; pharmacokinetics ; ABO ; Medicine ; R |
Subject code | 610 |
Language | English |
Publishing date | 2022-01-01T00:00:00Z |
Publisher | MDPI AG |
Document type | Article ; Online |
Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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