Two homozygous missense mutations in ITGB3 gene as a cause of Glanzmann Thrombasthenia in four consanguineous Pakistani pedigrees

Glanzmann thrombasthenia (GT) is most common of inherited platelet disorders, resulting from quantitative/qualitative defects in platelet surface integrin αIIbβ3, encoded by ITGA2B and ITGB3 genes. Little is known about clinical and molecular characteristics of GT patients from highly consanguineous Pakistani population.

[1]  S. Mahmood,et al.  Metachromatic Leukodystrophy (MLD): a Pakistani Family with Novel ARSA Gene Mutation , 2017, Journal of Molecular Neuroscience.

[2]  J. Sayer,et al.  Glanzmann thrombasthenia in Pakistan: molecular analysis and identification of novel mutations , 2015, Clinical Genetics.

[3]  L. Alberio,et al.  Expanding the Mutation Spectrum Affecting αIIbβ3 Integrin in Glanzmann Thrombasthenia: Screening of the ITGA2B and ITGB3 Genes in a Large International Cohort , 2015, Human mutation.

[4]  W. Ouwehand,et al.  αIIbβ3 variants defined by next-generation sequencing: Predicting variants likely to cause Glanzmann thrombasthenia , 2015, Proceedings of the National Academy of Sciences.

[5]  X. Pillois,et al.  Glanzmann Thrombasthenia: State of the Art and Future Directions , 2013, Seminars in Thrombosis & Hemostasis.

[6]  P. Nurden,et al.  Understanding the genetic basis of Glanzmann thrombasthenia: implications for treatment , 2012, Expert review of hematology.

[7]  P. Nurden,et al.  Glanzmann thrombasthenia: a review of ITGA2B and ITGB3 defects with emphasis on variants, phenotypic variability, and mouse models. , 2011, Blood.

[8]  B. Coller,et al.  ISTH/SSC bleeding assessment tool: a standardized questionnaire and a proposal for a new bleeding score for inherited bleeding disorders , 2010, Journal of thrombosis and haemostasis : JTH.

[9]  R. Heilig,et al.  A unique combination of inhibitory and partially activating mutations in β3 of a patient with variant-type Glanzmann thrombasthenia , 2010, Platelets.

[10]  Alexandre G de Brevern,et al.  αIIbβ3 integrin: new allelic variants in Glanzmann thrombasthenia, effects on ITGA2B and ITGB3 mRNA splicing, expression, and structure–function , 2010, Human mutation.

[11]  A. Nurden Glanzmann thrombasthenia: the need for epidemiological studies , 2009, Journal of thrombosis and haemostasis : JTH.

[12]  R. Saxena,et al.  Molecular defects in ITGA2B and ITGB3 genes in patients with Glanzmann thrombasthenia , 2009, Journal of thrombosis and haemostasis : JTH.

[13]  G. Di Minno,et al.  Glanzmann’s thrombasthenia (defective platelet integrin αIIb-β3): proposals for management between evidence and open issues , 2009, Thrombosis and Haemostasis.

[14]  R. Saxena,et al.  Glanzmann's Thrombasthenia: An Overview , 2009, Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis.

[15]  M. Landau,et al.  Disulfide bond disruption by a β3-Cys549Arg mutation in six Jordanian families with Glanzmann thrombasthenia causes diminished production of constitutively active αIIbβ3 , 2007, Thrombosis and Haemostasis.

[16]  M. Poon Clinical use of recombinant human activated factor VII (rFVIIa) in the prevention and treatment of bleeding episodes in patients with Glanzmann’s thrombasthenia , 2007, Vascular health and risk management.

[17]  B. Coller,et al.  Diversity of Glanzmann thrombasthenia in southern India: 10 novel mutations identified among 15 unrelated patients , 2006, Journal of thrombosis and haemostasis : JTH.

[18]  David W. Russell,et al.  Purification of nucleic acids by extraction with phenol:chloroform. , 2006, CSH protocols.

[19]  A. Nurden,et al.  Glanzmann thrombasthenia , 2006, Orphanet journal of rare diseases.

[20]  D. Mohanty,et al.  Mutations in GPIIIa molecule as a cause for Glanzmann thrombasthenia in Indian patients , 2005, Journal of thrombosis and haemostasis : JTH.

[21]  Barry S. Coller,et al.  Structural basis for allostery in integrins and binding to fibrinogen-mimetic therapeutics , 2004, Nature.

[22]  R. Sharifian,et al.  Presentation and pattern of symptoms in 382 patients with Glanzmann thrombasthenia in Iran , 2004, American journal of hematology.

[23]  B. Coller,et al.  Two New β3 Integrin Mutations in Indian Patients with Glanzmann Thrombasthenia: Localization of Mutations Affecting Cysteine Residues in Integrin β3 , 2002, Thrombosis and Haemostasis.

[24]  Stephen C. Blacklow,et al.  Cysteine-rich module structure reveals a fulcrum for integrin rearrangement upon activation , 2002, Nature Structural Biology.

[25]  N. Kieffer,et al.  Probing conformational changes in the I-like domain and the cysteine-rich repeat of human beta 3 integrins following disulfide bond disruption by cysteine mutations: identification of cysteine 598 involved in alphaIIbbeta3 activation. , 2001, The Journal of biological chemistry.

[26]  Thilo Stehle,et al.  Crystal Structure of the Extracellular Segment of Integrin αVβ3 , 2001, Science.

[27]  M. Poncz,et al.  The Human Platelet IIb Gene Is Not Closely Linked to Its Integrin Partner β3 , 1999 .

[28]  M. Poncz,et al.  A Leu117 → Trp mutation within the RGD-peptide cross-linking region of β3 results in Glanzmann thrombasthenia by preventing αIIbβ3 export to the platelet surface , 1997 .

[29]  P. Newman,et al.  A point mutation leads to an unpaired cysteine residue and a molecular weight polymorphism of a functional platelet beta 3 integrin subunit. The Sra alloantigen system of GPIIIa. , 1994, The Journal of biological chemistry.

[30]  A. Frelinger,et al.  A beta 3 integrin mutation abolishes ligand binding and alters divalent cation-dependent conformation. , 1990, Science.

[31]  J. George,et al.  Glanzmann's thrombasthenia: the spectrum of clinical disease. , 1990, Blood.

[32]  B. Coller,et al.  Two new beta3 integrin mutations in Indian patients with Glanzmann thrombasthenia: localization of mutations affecting cysteine residues in integrin beta3. , 2002, Thrombosis and haemostasis.