Olivier Christoph: Where Does Factor VIII Really Come From?
Olivier Christoph, Director of Research at Inserm, shared a post on LinkedIn about a recent article by Paige E. Patterson et al. published in Blood Advances, adding:
“Where does Factor VIII really come from?
After decades of debate, this study led by Radoslaw (Radek) Kaczmarek and Roland W Herzog brings real clarity. Using an elegant gene-edited mouse model together with human tissues, the authors show that FVIII is produced by liver sinusoidal endothelial cells—not hepatocytes.
What really stood out to me is the level of precision: FVIII expression is highly zonal, concentrated in hepatic Zones 2 and 3, and even detectable in renal endothelial cells.
By pinpointing the true cellular and microanatomical sources of FVIII, this work doesn’t just settle a long-standing question—it offers a strong roadmap for designing gene therapies for hemophilia A that better match physiological reality.”
Title: Factor VIII originates primarily from anatomically distinct subsets of liver sinusoidal endothelial cells
Authors: Paige E. Patterson, Audrey Kapelanski-Lamoureux, Cynthia Lebeaupin, Peter Metrakos, Anthoula Lazaris, Wenjun Zhang, Chandrashekhar Avinash Kubal, Renzhi Han, Sreevani Arisa, Oded Danziger, Brad R. Rosenberg, Eleftherios Michailidis, Charles M. Rice, Ype P. de Jong, Randal J Kaufman, Roland W. Herzog, Radoslaw Kaczmarek
Read the Full Article on Blood Advances

Stay updated on all scientific advances with Hemostasis Today.
-
Jun 23, 2026, 23:30Shunsuke Iwano: PMDA Introduces Greater Flexibility for Pediatric Factor VIII and IX Development in Japan
-
Jun 23, 2026, 23:05Rounak Dubey: ISBT Academy Session on Agentic AI
-
Jun 23, 2026, 22:59Mohammed Maher Babiker: When ‘Low Platelets’ aren’t Really Low
-
Jun 23, 2026, 22:49Giovanni Merlino: Why Does Stress Hyperglycemia Worsen Stroke Outcomes?
-
Jun 23, 2026, 22:41Tareq Abadl: Coombs Test – The Key to Detecting Immune-Mediated Hemolysis
-
Jun 23, 2026, 22:32How WFH Impacted the Bleeding Disorders Community in 2025
-
Jun 23, 2026, 22:03Erin VanDyke: A Journey Through VTE Leadership and Healthcare Transformation
-
Jun 23, 2026, 21:19Ahmed Koriesh: Join Us for Future of Stroke Care 2026
-
Jun 23, 2026, 20:30Aladdin Mohammad: Baseline IgG as a Key Predictor of Hypogammaglobulinaemia in AAV