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.
-
Feb 7, 2026, 16:35Tareq Abadl: Low Haptoglobin – Practical Lab Interpretation
-
Feb 7, 2026, 15:58New Study Reveals Higher-Than-Expected Prevalence of Factor VII Deficiency – RPTH Journal
-
Feb 7, 2026, 15:29Rowan Paul: MSCs Show Strongest Pain Reduction in Regenerative Medicine Approaches
-
Feb 7, 2026, 15:24Abeer Alanazi: Asundexian Reduces Stroke and Mortality Without Increased Bleeding
-
Feb 7, 2026, 15:19Shabbir Ansari: Rare F3 Missense Variants Markedly Impair Coagulation Initiation
-
Feb 7, 2026, 15:13Caitlin Raymond: Understanding Risks in Rare Group A Subtypes with Anti-A1 Antibodies in Transfusion Medicine
-
Feb 7, 2026, 14:57Akinchan Bhardwaj։ OCEANIC-STROKE Trial Signals a New Era in Secondary Stroke Prevention
-
Feb 7, 2026, 14:32Ming Y Lim: Launching a Virtual Iron Deficiency Clinic at the University of Utah School of Medicine
-
Feb 7, 2026, 14:30Exploring Thrombin Generation Profiling in Rare Coagulation Factor Deficiencies – JTH