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A Commemorative Issue in Honor of Professor Valder R. Arruda: Hemophilia and Rare Bleeding Disorders

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Biology".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 3468

Special Issue Editor


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Guest Editor
Director of the National Hemophilia Center and thrombosis Institute, &Chair of the Amalia Biron Thrombosis Research Institute, Sheba Medical Center, Tel Hashomer affiliated to Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
Interests: hemophilia; rare bleeding disorders

Special Issue Information

Dear Colleagues,

Rare bleeding disorders (RBD) and hemophilia are inherited coagulopathies with variable bleeding phenotypes, whose hemostatic control was, until recently, based upon replacement therapy. In patients with bleeding symptoms, laboratory assessment and, especially, molecular workup enable an accurate diagnosis, as well as prenatal and family counseling. While future gene therapy may be promising for such patients, there is currently an unmet need to provide better functional tools (therapeutic options) for bleeding control and prevention, risk assessment directed at complications, e.g., unwanted immune responses to the therapeutic protein (inhibitor formation), and to address the use of non-replacement therapies as well as novel global assays that may be applied for monitoring. In advance phase studies on gene therapy for hemophilia, the control of critical safety and efficacy challenges will pave the way for approval as well as to set up the basis for future gene-based strategies for RBD. In this Special Issue, Molecular and Functional Research in Hemophilia and Rare Bleeding Disorders, we aim to discuss some of these important aspects associated with diagnosis and potential care.

Prof. Dr. Gili Kenet
Guest Editor

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Keywords

  • hemophilia
  • inhibitors
  • rare bleeding disorders
  • hemostasis
  • gene therapy
  • AAV
  • lentiviral
  • coagulation factors
  • non-replacement therapy
  • thrombotic complications

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Published Papers (1 paper)

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Research

17 pages, 3627 KiB  
Article
Development and Characterization of a Factor V-Deficient CRISPR Cell Model for the Correction of Mutations
by Luis Javier Serrano, Mariano Garcia-Arranz, Juan A. De Pablo-Moreno, José Carlos Segovia, Rocío Olivera-Salazar, Damián Garcia-Olmo and Antonio Liras
Int. J. Mol. Sci. 2022, 23(10), 5802; https://doi.org/10.3390/ijms23105802 - 22 May 2022
Cited by 2 | Viewed by 2480
Abstract
Factor V deficiency, an ultra-rare congenital coagulopathy, is characterized by bleeding episodes that may be more or less intense as a function of the levels of coagulation factor activity present in plasma. Fresh-frozen plasma, often used to treat patients with factor V deficiency, [...] Read more.
Factor V deficiency, an ultra-rare congenital coagulopathy, is characterized by bleeding episodes that may be more or less intense as a function of the levels of coagulation factor activity present in plasma. Fresh-frozen plasma, often used to treat patients with factor V deficiency, is a scarcely effective palliative therapy with no specificity to the disease. CRISPR/Cas9-mediated gene editing, following precise deletion by non-homologous end-joining, has proven to be highly effective for modeling on a HepG2 cell line a mutation similar to the one detected in the factor V-deficient patient analyzed in this study, thus simulating the pathological phenotype. Additional CRISPR/Cas9-driven non-homologous end-joining precision deletion steps allowed correction of 41% of the factor V gene mutated cells, giving rise to a newly developed functional protein. Taking into account the plasma concentrations corresponding to the different levels of severity of factor V deficiency, it may be argued that the correction achieved in this study could, in ideal conditions, be sufficient to turn a severe phenotype into a mild or asymptomatic one. Full article
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