Wolfgang Miesbach: A Historic Experiment That Changed Our Understanding of ITP
Wolfgang Miesbach, Professor of Medicine at Frankfurt University Hospital, shared a post on LinkedIn:
”Did you know about the Harrington-Hollingsworth experiment?
First evidence that whole plasma from patients with ITP transfused into healthy volunteers marked fall in platelet counts.
The result was dramatic: platelet counts in the volunteers dropped sharply, sometimes within just a few hours.
This was one of the first clear proofs that an autoimmune disorder can be transferred by plasma โ and that ITP is driven by circulating antiplatelet factors.
An experiment like this would never be repeated today, but it fundamentally changed our understanding of autoimmune thrombocytopenia.
This remarkable piece of history was shown during John Semple inspiring talk on ‘Novel insights in the pathogenesis of ITP’ at the recent EHA-SWG Scientific Meeting on Bleeding and Platelet Disorders.”

Stay updated with Hemostasis Today.
-
Jul 13, 2026, 11:25Luisa Mรผller: Advancing Anticoagulation Strategies for VITT at ISTH 2026
-
Jul 13, 2026, 10:49Joshua Zeidner: Advancing Menin Inhibitor Therapy in MD Education AML-ALL US Focus 2026
-
Jul 13, 2026, 10:25Flora Peyvandi: A Practical Approach to ALT Elevation After Gene Therapy at ISTH 2026
-
Jul 13, 2026, 10:02Jessica Garcia: Where Science and Community Come Together at ISTH 2026
-
Jul 13, 2026, 09:46Fabrice Cognasse: Is There Such a Thing as the Perfect Platelet Product?
-
Jul 13, 2026, 09:42Cancer-Associated Arterial Thromboembolism: Redefining the Thrombotic Burden in Oncology
-
Jul 13, 2026, 05:59Connecting and Collaborating at ISTH 2026 – NNHF
-
Jul 13, 2026, 05:58Lara Monica: Back at ISTH – Looking Forward to Science and Reconnections!
-
Jul 13, 2026, 05:57Barbara Adams Krolak: Exciting Updates From the ISTH 2026 Regulatory Session