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.
-
Nov 8, 2026, 19:31Anna Kajaste-Rudnitski: Presenting AAV-Induced p53 Signalling in Human CNS Cells at ESGCT 26
-
Nov 8, 2026, 19:29David McIntosh: Cybersecurity Matters, but Blood Availability Remains the Bigger Challenge
-
Nov 8, 2026, 19:26Wenxue Ma: An Integrative Framework for Macrophage-Mediated Therapeutic Resistance in Cancer
-
Nov 8, 2026, 19:25Yildiz Yigit: Presenting a Polycythemia Vera Case at the MPN Subcommittee Session
-
Nov 8, 2026, 18:56Denis Oduor: Strengthening the Regulation and Delivery of Blood Transfusion and Transplantation Services
-
Nov 8, 2026, 18:28Raghavendra Rao: A Narrative Review on Chronic Venous Disease during Pregnancy
-
Nov 8, 2026, 17:57Dhiren Patel: PLD1-Derived Phospholipids Regulate NAD Kinase and ROS Production in Neutrophils
-
Nov 8, 2026, 17:48Andra T.: What Causes Antiphospholipid Syndrome? – Four Steps, not One Cause
-
Nov 8, 2026, 17:38Nasrin Samadi: Can a Normal Clotting Test Be Misleading?