Search Results - "Hartwig, John H"
-
1
The Ashwell-Morell receptor regulates hepatic thrombopoietin production via JAK2-STAT3 signaling
Published in Nature medicine (01-01-2015)“…Binding of aged, desialylated platelets to the Ashwell-Morell receptor induces hepatic expression of the cytokine thrombopoietin via JAK2-STAT3 signaling,…”
Get full text
Journal Article -
2
Extracellular DNA traps promote thrombosis
Published in Proceedings of the National Academy of Sciences - PNAS (07-09-2010)“…Neutrophil extracellular traps (NETs) are part of the innate immune response to infections. NETs are a meshwork of DNA fibers comprising histones and…”
Get full text
Journal Article -
3
The filamins: Organizers of cell structure and function
Published in Cell adhesion & migration (01-03-2011)“…Filamin A (FLNa), the first non-muscle actin filament cross-linking protein, was identified in 1975. Thirty five years of FLNa research has revealed its…”
Get full text
Journal Article -
4
active biopolymer network controlled by molecular motors
Published in Proceedings of the National Academy of Sciences - PNAS (08-09-2009)“…We describe an active polymer network in which processive molecular motors control network elasticity. This system consists of actin filaments cross-linked by…”
Get full text
Journal Article -
5
Differential Remodeling of Actin Cytoskeleton Architecture by Profilin Isoforms Leads to Distinct Effects on Cell Migration and Invasion
Published in Cancer cell (13-11-2012)“…Dynamic actin cytoskeletal reorganization is integral to cell motility. Profilins are well-characterized regulators of actin polymerization; however,…”
Get full text
Journal Article -
6
Cytoskeletal mechanics of proplatelet maturation and platelet release
Published in The Journal of cell biology (15-11-2010)“…Megakaryocytes generate platelets by remodeling their cytoplasm into long proplatelet extensions, which serve as assembly lines for platelet production…”
Get full text
Journal Article -
7
Protein 4.1R-dependent multiprotein complex: New insights into the structural organization of the red blood cell membrane
Published in Proceedings of the National Academy of Sciences - PNAS (10-06-2008)“…Protein 4.1R (4.1R) is a multifunctional component of the red cell membrane. It forms a ternary complex with actin and spectrin, which defines the nodal…”
Get full text
Journal Article -
8
Microtubule and cortical forces determine platelet size during vascular platelet production
Published in Nature communications (22-05-2012)“…Megakaryocytes release large preplatelet intermediates into the sinusoidal blood vessels. Preplatelets convert into barbell-shaped proplatelets in vitro to…”
Get full text
Journal Article -
9
Microtubule sliding drives proplatelet elongation and is dependent on cytoplasmic dynein
Published in Blood (29-01-2015)“…Bone marrow megakaryocytes produce platelets by extending long cytoplasmic protrusions, designated proplatelets, into sinusoidal blood vessels. Although…”
Get full text
Journal Article -
10
Platelet actin nodules are podosome-like structures dependent on Wiskott–Aldrich syndrome protein and ARP2/3 complex
Published in Nature communications (01-06-2015)“…The actin nodule is a novel F-actin structure present in platelets during early spreading. However, only limited detail is known regarding nodule organization…”
Get full text
Journal Article -
11
Dual roles for hepatic lectin receptors in the clearance of chilled platelets
Published in Nature medicine (01-11-2009)“…Unlike other types of blood components, refrigeration of platelets leads to their rapid clearance from the circulation after transfusion. Platelets must…”
Get full text
Journal Article -
12
Megakaryocyte-specific Profilin1-deficiency alters microtubule stability and causes a Wiskott–Aldrich syndrome-like platelet defect
Published in Nature communications (04-09-2014)“…Wiskott–Aldrich syndrome (WAS) is caused by mutations in the WAS gene and is characterized by immunodeficiency, eczema and microthrombocytopenia. The molecular…”
Get full text
Journal Article -
13
Structural basis of filamin A functions
Published in The Journal of cell biology (03-12-2007)“…Filamin A (FLNa) can effect orthogonal branching of F-actin and bind many cellular constituents. FLNa dimeric subunits have N-terminal spectrin family F-actin…”
Get full text
Journal Article -
14
CLEC-2 activates Syk through dimerization
Published in Blood (08-04-2010)“…The C-type lectin receptor CLEC-2 activates platelets through Src and Syk tyrosine kinases, leading to tyrosine phosphorylation of downstream adapter proteins…”
Get full text
Journal Article -
15
FlnA binding to PACSIN2 F-BAR domain regulates membrane tubulation in megakaryocytes and platelets
Published in Blood (02-07-2015)“…Bin-Amphiphysin-Rvs (BAR) and Fes-CIP4 homology BAR (F-BAR) proteins generate tubular membrane invaginations reminiscent of the megakaryocyte (MK) demarcation…”
Get full text
Journal Article -
16
A novel interaction between FlnA and Syk regulates platelet ITAM-mediated receptor signaling and function
Published in The Journal of experimental medicine (30-08-2010)“…Filamin A (FlnA) cross-links actin filaments and connects the Von Willebrand factor receptor GPIb-IX-V to the underlying cytoskeleton in platelets. Because…”
Get full text
Journal Article -
17
Synthesis and dephosphorylation of MARCKS in the late stages of megakaryocyte maturation drive proplatelet formation
Published in Blood (17-03-2016)“…Platelets are essential for hemostasis, and thrombocytopenia is a major clinical problem. Megakaryocytes (MKs) generate platelets by extending long processes,…”
Get full text
Journal Article -
18
Regulation of Dynamin Oligomerization in Cells: The Role of Dynamin–Actin Interactions and Its GTPase Activity
Published in Traffic (Copenhagen, Denmark) (01-08-2014)“…Dynamin is a 96‐kDa protein that has multiple oligomerization states that influence its GTPase activity. A number of different dynamin effectors, including…”
Get full text
Journal Article -
19
RefilinB (FAM101B) targets FilaminA to organize perinuclear actin networks and regulates nuclear shape
Published in Proceedings of the National Academy of Sciences - PNAS (12-07-2011)“…The intracellular localization and shape of the nucleus plays a central role in cellular and developmental processes. In fibroblasts, nuclear movement and…”
Get full text
Journal Article -
20
Disease-associated mutant α-actinin-4 reveals a mechanism for regulating its F-actin-binding affinity
Published in Proceedings of the National Academy of Sciences - PNAS (09-10-2007)“…α-Actinin-4 is a widely expressed protein that employs an actin-binding site with two calponin homology domains to crosslink actin filaments (F-actin) in a…”
Get full text
Journal Article