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DOI: 10.1160/TH11-12-0875
Deficiencies of antithrombin, protein C and protein S – Practical experience in genetic analysis of a large patient cohort
Publikationsverlauf
Received:
20. Dezember 2011
Accepted after major revision:
22. April 2012
Publikationsdatum:
25. November 2017 (online)
Summary
Deficiencies of natural anticoagulant proteins including antithrombin (AT), protein C (PC) and protein S (PS) are important causes of inherited thrombophilia. This study aimed to report on the practical experience gained in performing genetic analyses of a large cohort of patients with AT, PC and PS deficiencies and to relate this knowledge to clinical application. We genotyped a large cohort of 709 unrelated patients with AT (231), PC (234) and PS (244) deficiencies referred to us by physicians throughout Germany. Mutations were detected by direct sequencing and multiplex ligation-dependent probe amplification (MLPA). The highest mutation detection rate (MDR) was found for the SERPINC1 gene (83.5%), followed by the PROC (69%) and PROS1 (43%) genes. Even at AT activities close to the normal range (75%), the MDR was 70%. Contrastingly, for PC and PS deficiencies, the MDR dropped significantly and mildly lowered to subnormal values. At PS activities >55% for PS no mutations were detected. Mutation profiles of all three genes were similar with the highest prevalence for missense mutations (63–78%), followed by nonsense (7–11%), splice-site mutations (7–13%), small deletions (1–8%), small insertions/duplications (1–4%) and large deletions (3–6%). In conclusion, genetic testing is a useful diagnostic tool for diagnosing thrombophilia. Based on our data, genetic analysis for patients with AT deficiency is indicated for all subnormal activities. In contrast, genotyping is not advisable for PC activities >70% and for PS activities >55%.
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References
- 1 Bafunno V, Margaglione M. Genetic basis of thrombosis. Clin Chem Lab Med 2010; 48 (Suppl. 01) S41-51.
- 2 Naess IA, Christiansen SC, Romundstad P. et al. Incidence and mortality of venous thrombosis: a population-based study. J Thromb Haemost 2007; 05: 692-699.
- 3 Kyrle PA, Minar E, Bialonczyk C. et al. The risk of recurrent venous thromboembolism in men and women. N Engl J Med 2004; 350: 2558-2563.
- 4 Lane DA, Mannucci PM, Bauer KA. et al. Inherited thrombophilia: Part 1. Thromb Haemost 1996; 76: 651-662.
- 5 Olds RJ, Lane DA, Chowdhury V. et al. Complete nucleotide sequence of the antithrombin gene: evidence for homologous recombination causing thrombophilia. Biochemistry 1993; 32: 4216-4224.
- 6 Hirsh J, Piovella F, Pini M. Congenital antithrombin III deficiency. Incidence and clinical features. Am J Med 1989; 87 Suppl 3B 34S-8S.
- 7 Foster DC, Yoshitake S, Davie EW. The nucleotide sequence of the gene for human protein C. Proc Natl Acad Sci USA 1985; 82: 4673-4677.
- 8 Whitlatch NL, Ortel TL. Thrombophilias: when should we test and how does it help?. Semin Respir Crit Care Med 2008; 29: 25-39.
- 9 Ploos van Amstel JK, van der Zanden AL, Bakker E. et al. Two genes homologous with human protein S cDNA are located on chromosome 3. Thromb Haemost 1987; 58: 982-987.
- 10 Beauchamp NJ, Dykes AC, Parikh N. et al. The prevalence of, and molecular defects underlying, inherited protein S deficiency in the general population. Br J Haematol 2004; 125: 647-654.
- 11 de Bruijn SF, Stam J, Koopman MM. et al. Case-control study of risk of cerebral sinus thrombosis in oral contraceptive users and in [correction of who are] carriers of hereditary prothrombotic conditions. The Cerebral Venous Sinus Thrombosis Study Group. Br Med J 1998; 316: 589-592.
- 12 Miller SA, Dykes DD, Polesky HF. A simple salting out procedure for extracting DNA from human nucleated cells. Nucleic Acids Res 1988; 16: 1215.
- 13 Goodeve AC, Reitsma PH, McVey JH. Nomenclature of genetic variants in hemostasis. J Thromb Haemost 2011; 09: 852-855.
- 14 Perry DJ, Daly M, Harper PL. et al. Antithrombin Cambridge II, 384 Ala to Ser. Further evidence of the role of the reactive centre loop in the inhibitory function of the serpins. FEBS Lett 1991; 285: 248-250.
- 15 Olds RJ, Lane DA, Boisclair M. et al. Antithrombin Budapest 3. An antithrombin variant with reduced heparin affinity resulting from the substitution L99F. FEBS Lett 1992; 300: 241-246.
- 16 Thein SL, Lane DA. Use of synthetic oligonucleotides in the characterization of antithrombin III Northwick Park (393 CGT----TGT) and antithrombin III Glasgow (393 CGT----CAT). Blood 1988; 72: 1817-1821.
- 17 Duchemin J, Gandrille S, Borgel D. et al. The Ser 460 to Pro substitution of the protein S alpha (PROS1) gene is a frequent mutation associated with free protein S (type IIa) deficiency. Blood 1995; 86: 3436-3443.
- 18 Cunningham MT, Olson JD, Chandler WL. et al. External quality assurance of antithrombin, protein C, and protein s assays: results of the College of American Pathologists proficiency testing program in thrombophilia. Arch Pathol Lab Med 2011; 135: 227-232.
- 19 Bereczky Z, Kovacs KB, Muszbek L. Protein C and protein S deficiencies: similarities and differences between two brothers playing in the same game. Clin Chem Lab Med 2010; 48 (Suppl. 01) S53-66.
- 20 Kottke-Marchant K, Comp P. Laboratory issues in diagnosing abnormalities of protein C, thrombomodulin, and endothelial cell protein C receptor. Arch Pathol Lab Med 2002; 126: 1337-1348.
- 21 Koeleman BP, Reitsma PH, Bertina RM. Familial thrombophilia: a complex genetic disorder. Semin Hematol 1997; 34: 256-264.
- 22 Spek CA, Koster T, Rosendaal FR. et al. Genotypic variation in the promoter region of the protein C gene is associated with plasma protein C levels and thrombotic risk. Arterioscler Thromb Vasc Biol 1995; 15: 214-218.
- 23 Johansson AM, Hillarp A, Sall T. et al. Large deletions of the PROS1 gene in a large fraction of mutation-negative patients with protein S deficiency. Thromb Haemost 2005; 94: 951-957.
- 24 Lanke E, Johansson AM, Hillarp A. et al. Co-segregation of the PROS1 locus and protein S deficiency in families having no detectable mutations in PROS1. J Thromb Haemost 2004; 02: 1918-1923.
- 25 Persson KE, Dahlback B, Hillarp A. Diagnosing protein S deficiency: analytical considerations. Clin Lab 2003; 49: 103-110.
- 26 ten Kate MK, van der Meer J. Protein S deficiency: a clinical perspective. Haemophilia 2008; 14: 1222-1228.
- 27 Almasy L, Soria JM, Souto JC. et al. A quantitative trait locus influencing free plasma protein S levels on human chromosome 1q: results from the Genetic Analysis of Idiopathic Thrombophilia (GAIT) project. Arterioscler Thromb Vasc Biol 2003; 23: 508-511.
- 28 Mulder R, Ten Kate MK, Kluin-Nelemans HC. et al. Low cut-off values increase diagnostic performance of protein S assays. Thromb Haemost 2010; 104: 618-625.
- 29 Lijfering WM, Mulder R, ten Kate MK. et al. Clinical relevance of decreased free protein S levels: results from a retrospective family cohort study involving 1143 relatives. Blood 2009; 113: 1225-1230.
- 30 Luxembourg B, Delev D, Geisen C. et al. Molecular basis of antithrombin deficiency. Thromb Haemost 2011; 105: 635-646.
- 31 Pintao MC, Garcia AA, Borgel D. et al. Gross deletions/duplications in PROS1 are relatively common in point mutation negative hereditary protein S deficiency. Hum Genet 2009; 126: 449-456.
- 32 Pavlova A, El-Maarri O, Luxembourg B. et al. Detection of heterozygous large deletions in the antithrombin gene using multiplex polymerase chain reaction and denatured high performance liquid chromatography. Haematologica 2006; 91: 1264-1267.
- 33 Yin T, Takeshita S, Sato Y. et al. A large deletion of the PROS1 gene in a deep vein thrombosis patient with protein S deficiency. Thromb Haemost 2007; 98: 783-789.
- 34 Shaw CJ, Lupski JR. Implications of human genome architecture for rearrangement-based disorders: the genomic basis of disease. Hum Mol Genet 2004; 13 (Suppl. 01) R57-64.
- 35 Aiach M, Nicaud V, Alhenc-Gelas M. et al. Complex association of protein C gene promoter polymorphism with circulating protein C levels and thrombotic risk. Arterioscler Thromb Vasc Biol 1999; 19: 1573-1576.
- 36 Pomp ER, Doggen CJ, Vos HL. et al. Polymorphisms in the protein C gene as risk factor for venous thrombosis. Thromb Haemost 2009; 101: 62-67.
- 37 Kimura R, Kokubo Y, Miyashita K. et al. Polymorphisms in vitamin K-dependent gamma-carboxylation-related genes influence interindividual variability in plasma protein C and protein S activities in the general population. Int J Hematol 2006; 84: 387-397.
- 38 Leroy-Matheron C, Duchemin J, Levent M. et al. Genetic modulation of plasma protein S levels by two frequent dimorphisms in the PROS1 gene. Thromb Haemost 1999; 82: 1088-1092.
- 39 Castaman G, Biguzzi E, Razzari C. et al. Association of protein S p.Pro667Pro dimorphism with plasma protein S levels in normal individuals and patients with inherited protein S deficiency. Thromb Res 2007; 120: 421-426.
- 40 Buil A, Soria JM, Souto JC. et al. Protein C levels are regulated by a quantitative trait locus on chromosome 16: results from the Genetic Analysis of Idiopathic Thrombophilia (GAIT) Project. Arterioscler Thromb Vasc Biol 2004; 24: 1321-1325.