RhoGAPs and Rho GTPases in platelets.

Abstract:

:Platelet cytoskeletal reorganization is essential for platelet adhesion and thrombus formation in hemostasis and thrombosis. The Rho GTPases RhoA, Rac1 and Cdc42 are the main players in cytoskeletal dynamics of platelets responsible for the formation of filopodia and lamellipodia to strongly increase the platelet surface upon activation. They are involved in platelet activation and aggregate formation including platelet secretion, integrin activation and arterial thrombus formation. The activity of Rho GTPases is tightly controlled by different proteins such as GTPase-activating proteins (GAPs). GAPs stimulate GTP hydrolysis to terminate Rho signaling. The role and impact of GAPs in platelets is not well-defined and many of the RhoGAPs identified are not known to be present in platelets or to have any function in platelets. The recently identified RhoGAPs Oligophrenin1 (OPHN1) and Nadrin regulate the activity of RhoA, Rac1 and Cdc42 and subsequent platelet cytoskeletal reorganization, platelet activation and thrombus formation. In the last years, the analysis of genetically modified mice helped to gain the understanding of Rho GTPases and their regulators in cytoskeletal rearrangements and other Rho mediated cellular processes in platelets.

journal_name

Hamostaseologie

journal_title

Hamostaseologie

authors

Elvers M

doi

10.5482/HAMO-14-09-0046

subject

Has Abstract

pub_date

2016-08-03 00:00:00

pages

168-77

issue

3

eissn

0720-9355

issn

2567-5761

pii

14-09-0046

journal_volume

36

pub_type

杂志文章,评审
  • Subchondral haematoma.

    abstract::Haemophilic arthropathy is a complex multifactorial disorder that poses significant challenges to both the treating haematologist and arthroplasty surgeon. Its pathogenesis is incompletely understood. Recent literature has concentrated on the toxic effects of iron and the characteristic inflammatory synovitis. Discuss...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.5482/HAMO-15-12-0033

    authors: Wharton R,Austin S,Back D

    更新日期:2017-01-01 00:00:00

  • [Pharmacology of heparins and direct anticoagulants].

    abstract::For decades, the options for therapeutic anticoagulation were limited to unfractionated heparin (UFH) and vitamin K antagonists (VKA), and their well-known limitations had to be accepted. With the introduction of the various LMWHs, the short- and medium-term anticoagulation could be much improved, but an alternative t...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Alban S

    更新日期:2008-12-01 00:00:00

  • Hermansky-Pudlak syndrome. Overview of clinical and molecular features and case report of a new HPS-1 variant.

    abstract::Hermansky-Pudlak syndrome (HPS) is a rare, autosomal recessive disorder affecting lysosome-related organelles (LRO), including dense platelet granules. HPS causes oculocutaneous hypopigmentation, bleeding diathesis and granulomatous colitis or pulmonary fibrosis. To date, there is no curative treatment and the clinica...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.5482/HAMO-14-06-0024

    authors: Sánchez-Guiu I,Torregrosa JM,Velasco F,Antón AI,Lozano ML,Vicente V,Rivera J

    更新日期:2014-01-01 00:00:00

  • [Primary and secondary prevention of the acute coronary syndrome].

    abstract::Coronary heart disease and the acute coronary syndrome are the leading causes of death in Germany. In prospective observational studies conventional risk factors such as smoking, arterial hypertension, hypercholesterolaemia, and diabetes can explain over 80% of cardiovascular diseases. Therefore, cardiovascular diseas...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Weingärtner O,Laufs U

    更新日期:2006-05-01 00:00:00

  • Management of acquired haemophilia A.

    abstract::Acquired haemophilia A (AHA) is caused by autoantibody inhibitors of coagulation factor VIII (FVIII : C). Recent onset of bleeds and isolated prolongation of the activated partial thromboplastin time (aPTT) are characteristic features of the disorder. Reduced FVIII : C activity and a detectable FVIII : C inhibitor in ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.5482/HAMO-14-11-0064

    authors: Tiede A,Scharf RE,Dobbelstein C,Werwitzke S

    更新日期:2015-01-01 00:00:00

  • Diagnosis and treatment of superficial vein thrombosis.

    abstract::Superficial vein thrombosis (SVT) is a common disease, characterized by an inflammatory-thrombotic process in a superficial vein. Typical clinical findings are pain and a warm, tender, reddish cord along the vein. Until recently, no reliable epidemiological data were available. The incidence is estimated to be higher ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.5482/HAMO-13-04-0027

    authors: Bauersachs RM

    更新日期:2013-08-01 00:00:00

  • Acquired Haemophilia A Associated with Subsequent Hepatocellular Carcinoma.

    abstract::Acquired haemophilia A (AHA) is a rare autoimmune disease caused by antibodies directed against clotting factor VIII. About half of cases are idiopathic, but AHA may also be secondary to autoimmune, dermatologic, or oncologic diseases. In approximately 10% of non-idiopathic cases, the disease occurs after or with the ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.1055/s-0038-1668570

    authors: Pacholczak R,Bazan-Socha S,Zdziarska J,Iwaniec T,Walocha JA,Musiał J,Dropiński J

    更新日期:2019-02-01 00:00:00

  • The Impact of Bleeding Disorders on the Socioeconomic Status of Adult Patients.

    abstract::The impact of inherited bleeding disorders on the socioeconomic status (SES) of affected individuals is not clear. The SES of adult patients with congenital bleeding disorders (PWBD) from a centre in Germany (age 42.3 ± 15.0 years) was compared to that of a gender- and age-matched control group of patients with thromb...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.5482/HAMO-16-12-0047

    authors: Holstein K,von Mackensen S,Bokemeyer C,Langer F

    更新日期:2018-08-01 00:00:00

  • Mouse models to study von Willebrand factor structure-function relationships in vivo.

    abstract::Von Willebrand factor (VWF) structure-function relationship has been studied only through in vitro approaches. The VWF-deficient mouse model has been extremely useful to examine the in vivo function of VWF but does not allow a more subtle analysis of the relative importance of its different domains. However, consideri...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:

    authors: Denis CV,Marx I,Badirou I,Pendu R,Christophe O

    更新日期:2009-01-01 00:00:00

  • Coagulation Signalling and Metabolic Disorders: Lessons Learned from Animal Models.

    abstract::Nutrient excess in obesity drives metabolic reprogramming in multiple tissues involving extensive interorgan and intercellular crosstalk. Experimental and clinical studies show that prolonged nutrient excess often compromises metabolic adaptation propagating proobesogenic and proinflammatory responses. Chronic inflamm...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1055/s-0039-1688800

    authors: Madhusudhan T,Ruf W

    更新日期:2019-06-01 00:00:00

  • Extracellular nucleic acids as novel alarm signals in the vascular system. Mediators of defence and disease.

    abstract::Upon vascular injury or tissue damage, the exposed intracellular material such as nucleic acids, histones and other macromolecules may come into contact with vessel wall cells and circulating blood cells and may thus, have an enduring influence on wound healing and body defence processes. This short review summarizes ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.5482/HAMO-13-01-0001

    authors: Fischer S,Preissner KT

    更新日期:2013-01-01 00:00:00

  • [Replacement therapy of coagulation factor preparations: antithrombin, FFP, PPSB, FXIII, rFVIIa].

    abstract::Replacement therapy of coagulation factor preparations (AT, FFP, PPSB, FXIII, rFVIIa) are frequently used on the Intensive Care Units. Indications, dosage, specific effects and side effects have to be considered. ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1267/hämo05020209

    authors: Scharrer I

    更新日期:2005-05-01 00:00:00

  • Arterial thrombus formation. Novel mechanisms and targets.

    abstract::Platelet and coagulation factor-dependent thrombus formation is critical to limit posttraumatic blood loss at sites of vascular injury. However, under pathological conditions like rupture of an atherosclerotic plaque, it may also lead to vessel occlusion causing myocardial infarction or stroke. Therefore, antithrombot...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Hagedorn I,Vögtle T,Nieswandt B

    更新日期:2010-08-01 00:00:00

  • Trauma-Induced Coagulopathy.

    abstract::Trauma-induced coagulopathy (TIC) is a heterogeneous entity that contributes to a significant morbidity and mortality following trauma. The activated protein C system, endotheliopathy and platelet dysfunction have been implicated in the pathogenesis of TIC, although there are still controversies on the exact pathogene...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1055/s-0039-1677853

    authors: Petros S

    更新日期:2019-02-01 00:00:00

  • Clot waveform analysis in patients with haemophilia A.

    abstract:UNLABELLED:Clot waveform analysis extends the interpretation of aPTT measurement curves. The curve is mathematically processed to obtain information about fibrin formation kinetics including semiquantitative determination of thrombin, prothrombinase and tenase activity. PATIENTS, METHOD:In this study the feasibility o...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.5482/HAMO-14-02-0016

    authors: Siegemund T,Scholz U,Schobess R,Siegemund A

    更新日期:2014-01-01 00:00:00

  • Potential Drug Interactions between Recombinant Interleukin-2 and Direct Oral Anticoagulants: Indirect Evidence from In Vivo Animal Studies.

    abstract::Recombinant interleukin-2 (rIL-2) is indicated for metastatic renal cell carcinoma and melanoma. Over recent years low-dose rIL-2 has been studied for the treatment of autoimmune diseases and acute coronary syndrome because of its ability to expand and activate T regulatory (Treg) cells. However, several medical condi...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.1055/a-1120-4064

    authors: Mahmoudpour SH,Valerio L,Douxfils J,Mahan CE,Jankowski M,Quitzau K,Konstantinides SV,Barco S

    更新日期:2020-12-01 00:00:00

  • [Pathophysiology of chemotherapy-associated thrombosis].

    abstract::Epidemiological studies revealed that most antineoplastic agents and regimes enhance the risk of venous and arterial thromboembolic events in cancer patients. The purpose of this article is to review clinical and pathophysiological data related to chemotherapy-associated thromboembolism under special consideration of ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Lechner D,Weltermann A

    更新日期:2009-01-01 00:00:00

  • [Haemophilia treatment centres in Germany].

    abstract:UNLABELLED:An adequate number of qualified haemophilia centres is an essential requirement for effective and cost-efficient haemophilia care. During a reassessment of the delivery of haemophilia care in Germany a broad range of criteria relating to structure and quality of the centres were defined and a questionnaire w...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:

    authors: Zimmermann R,Eifrig B,Lenk H,Pollmann H,Scharrer I,Huth-Kühne A

    更新日期:2012-01-01 00:00:00

  • Birth Control Pills and Thrombotic Risks: Differences of Contraception Methods with and without Estrogen.

    abstract::In Germany one-third of the women in fertile age use combined oral contraceptives (COCs), which consist mostly of ethinylestradiol (EE) and a synthetic progestin. Older COCs with norethisterone or levonorgestrel have a lower risk for venous thromboembolism (VTE) than newer COCs with desogestrel, drospirenone, or gesto...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1055/s-0039-1677806

    authors: Rott H

    更新日期:2019-02-01 00:00:00

  • VKCFD2 - from clinical phenotype to molecular mechanism.

    abstract::Vitamin K 2,3-epoxide reductase complex, subunit 1 (VKORC1) is an enzyme essential for the vitamin K cycle. VKORC1 catalyses the reduction of vitamin K 2,3-epoxide to the quinone form of vitamin K and further to vitamin K hydroquinone. The generated vitamin K hydroquinone serves as substrate for the enzyme γ-glutamyl-...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Czogalla KJ,Watzka M,Oldenburg J

    更新日期:2016-11-08 00:00:00

  • Health Care Transition of Adolescents and Young Adults with Haemophilia: the Situation in Germany and the Munich experience.

    abstract::Patients suffering from haemophilia encounter various phases in life, in which individual needs, life situations, and self- and disease perception change rapidly. One of these phases spans from the beginning of puberty until early adulthood, in which individuals gain self-responsibility and reach independence and auto...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1055/s-0039-3402804

    authors: Bidlingmaier C,Olivieri M,Schilling FH,Kurnik K,Pekrul I

    更新日期:2020-02-01 00:00:00

  • Do we need antiplatelet therapy in thrombocytosis? Pro. Diagnostic and pathophysiologic considerations for a treatment choice.

    abstract::Thrombocytosis (defined as platelets >450 x 109/l) has several aetiologies. After having excluded spurious thrombocytosis (e. g., due to microspherocytes, schistocytes, cryoglobulins, or bacteria), the differential diagnosis of true thrombocytosis encompasses secondary causes (as diverse as inflammation, infection, ma...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.5482/HAMO-14-11-0074

    authors: Alberio L

    更新日期:2016-11-07 00:00:00

  • Follow-up of a 6-month Programmed Sports Therapy (PST) in patients with haemophilia.

    abstract::Studies describe benefits of exercise in Patients with haemophilia (PwH), but research on training sustainability is rare. Aim of this study was to observe the follow-up of a guided 6-month training intervention in PwH. This study included 28 PwH after a training intervention (RCT) over 6 months. N=17 continued traini...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,随机对照试验

    doi:10.5482/HAMO-17-04-0016

    authors: Runkel B,Hilberg T

    更新日期:2017-01-01 00:00:00

  • [Congenital and acquired thrombocytopenias].

    abstract::An overview is given on congenital and acquired thrombocytopenias, their pathophysiology, symptoms, diagnosis and therapy with emphasizing heparin-induced thrombocytopenia (HIT) and the thrombotic thrombocytopenic purpura (TTP). ...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Scharf RE

    更新日期:2003-11-01 00:00:00

  • [Platelets: biochemistry and physiology].

    abstract::This article reviews the roles of blood platelets in haemostasis as well as in the pathogenesis of thromboembolic diseases. Besides the basic processes in primary haemostasis, platelet adhesion, platelet secretion, platelet aggregation, clot retraction, the new model of thrombin formation on the platelet surface is pr...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:

    authors: Kehrel BE

    更新日期:2008-12-01 00:00:00

  • Recurrent cerebral ischaemia in a pregnant woman with patent foramen ovale II° and thrombophilia.

    abstract::This case report concerns a pregnant multipara (age: 27 years) in the 16th gestational week. She developed a sudden onset of paraesthesia in her left lower arm although injecting dalteparin 5000 IU once daily subcutaneously (s. c.) due to a heterozygous factor V Leiden mutation and a prior miscarriage in the first pre...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.5482/HAMO-14-03-0022

    authors: Hecking C,Hendelmeier M,von Bardeleben R,Gröschel K,Schinzel H

    更新日期:2014-01-01 00:00:00

  • Clinical Problem Solving and Using New Paths in the Laboratory: Learning from Case Studies.

    abstract::Three selected casuistic studies of individual patient problems from my long-standing professional experience are presented. I intend to highlight the potential contribution of case studies, including new approaches of laboratory investigation, for the advancement of pathophysiological knowledge and would encourage to...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:10.1055/a-1191-7198

    authors: Lämmle B

    更新日期:2020-11-01 00:00:00

  • [Antithrombotic therapy of acute coronary syndromes].

    abstract::Recent advances in the diagnosis and the treatment of acute coronary syndromes (ACS) have led to a substantial reduction of major coronary events, to an improvement in patient outcome and the definition of new guidelines. Current strategies for the treatment of patients with non-ST-elevation ACS recommend a combined a...

    journal_title:Hamostaseologie

    pub_type: 杂志文章

    doi:

    authors: Hölschermann H

    更新日期:2007-12-01 00:00:00

  • DOAC use in patients with chronic kidney disease.

    abstract::Direct oral anticoagulants (DOACs) are increasingly prescribed substances in patients with indication for effective anticoagulation. Patients with chronic kidney disease (CKD) have a high burden of cardiovascular risk and are more likely to develop atrial fibrillation (AF) than patients without CKD. Patients with mild...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.5482/HAMO-17-01-0003

    authors: Kcükköylü S,Rump LC

    更新日期:2017-01-01 00:00:00

  • Platelet Signaling in Primary Haemostasis and Arterial Thrombus Formation: Part 1.

    abstract::Platelets react immediately in response to traumatic vascular injury by adhesion, activation, aggregation and subsequent haemostatic plug formation. While this reaction pattern is essential for haemostasis, platelet responses can also cause occlusive thrombi in diseased arteries, leading to myocardial infarction or st...

    journal_title:Hamostaseologie

    pub_type: 杂志文章,评审

    doi:10.1055/s-0038-1675144

    authors: Scharf RE

    更新日期:2018-11-01 00:00:00