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  1. Article ; Online: Accurate prediction of dynamic protein-ligand binding using P-score ranking.

    Ibrahim, Peter E G F / Zuccotto, Fabio / Zachariae, Ulrich / Gilbert, Ian / Bodkin, Mike

    Journal of computational chemistry

    2024  

    Abstract: ... function named the P-score. This is illustrated using six different protein-ligand targets as case studies. ...

    Abstract Protein-ligand binding prediction typically relies on docking methodologies and associated scoring functions to propose the binding mode of a ligand in a biological target. Significant challenges are associated with this approach, including the flexibility of the protein-ligand system, solvent-mediated interactions, and associated entropy changes. In addition, scoring functions are only weakly accurate due to the short time required for calculating enthalpic and entropic binding interactions. The workflow described here attempts to address these limitations by combining supervised molecular dynamics with dynamical averaging quantum mechanics fragment molecular orbital. This combination significantly increased the ability to predict the experimental binding structure of protein-ligand complexes independent from the starting position of the ligands or the binding site conformation. We found that the predictive power could be enhanced by combining the residence time and interaction energies as descriptors in a novel scoring function named the P-score. This is illustrated using six different protein-ligand targets as case studies.
    Language English
    Publishing date 2024-04-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1479181-X
    ISSN 1096-987X ; 0192-8651
    ISSN (online) 1096-987X
    ISSN 0192-8651
    DOI 10.1002/jcc.27370
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Photocatalytic Arylation of P

    Rothfelder, Robin / Streitferdt, Verena / Lennert, Ulrich / Cammarata, Jose / Scott, Daniel J / Zeitler, Kirsten / Gschwind, Ruth M / Wolf, Robert

    Angewandte Chemie (International ed. in English)

    2021  Volume 60, Issue 46, Page(s) 24650–24658

    Abstract: ... ...

    Abstract Detailed
    Language English
    Publishing date 2021-10-11
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202110619
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Himalayan P Waves, Alpine A Waves.

    Vlismas, Peter P / Jorde, Ulrich P / Sims, Daniel B

    Circulation. Heart failure

    2019  Volume 12, Issue 10, Page(s) e006235

    MeSH term(s) Action Potentials ; Adult ; Atrial Function, Right ; Atrial Pressure ; Cardiomyopathy, Restrictive/complications ; Cardiomyopathy, Restrictive/diagnosis ; Cardiomyopathy, Restrictive/physiopathology ; Cardiomyopathy, Restrictive/surgery ; Electrocardiography ; Heart Atria/physiopathology ; Heart Failure/diagnosis ; Heart Failure/etiology ; Heart Failure/physiopathology ; Heart Failure/surgery ; Heart Rate ; Heart Transplantation ; Humans ; Male ; Predictive Value of Tests
    Language English
    Publishing date 2019-09-30
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2429459-7
    ISSN 1941-3297 ; 1941-3289
    ISSN (online) 1941-3297
    ISSN 1941-3289
    DOI 10.1161/CIRCHEARTFAILURE.119.006235
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Genetic Analysis of the ATG16L1 c.898A>G (p.T300A) Variant in Acute and Chronic Pancreatitis.

    Neubauer, Claudia / Ewers, Maren / Schulz, Hans-Ulrich / Weiß, Frank Ulrich / Lämmerhirt, Felix / Lerch, Markus M / Bugert, Peter / Landt, Olfert / Algül, Hana / Rosendahl, Jonas / Witt, Heiko

    Pancreas

    2023  Volume 51, Issue 9, Page(s) 1231–1234

    Abstract: ... in the formation of autophagosomes. The c.898A > G (p.T300A) variant of ATG16L1 is associated with Crohn disease ... In this study, we analyzed ATG16L1 c.898A > G (p.T300A) for an association with pancreatitis.: Methods ... p.T300A) did not differ significantly between patients and controls (G allele frequencies ...

    Abstract Objectives: Human and animal studies suggest an important role of autophagy in the pathogenesis of pancreatitis. ATG16L1 (autophagy-related 16 like 1) is part of a protein complex that is involved in the formation of autophagosomes. The c.898A > G (p.T300A) variant of ATG16L1 is associated with Crohn disease. In this study, we analyzed ATG16L1 c.898A > G (p.T300A) for an association with pancreatitis.
    Methods: We genotyped 777 patients and 551 control subjects of German origin by melting curve analysis using fluorescence resonance energy transfer probes. The patient group included 429 patients with nonalcoholic chronic pancreatitis (CP), 141 patients with alcoholic CP, and 207 patients with acute pancreatitis (AP). We classified AP by severity according to the Atlanta symposium 1992.
    Results: Allele and genotype frequencies of ATG16L1 c.898A > G (p.T300A) did not differ significantly between patients and controls (G allele frequencies: nonalcoholic CP, 49.9%; alcoholic CP, 48.2%; AP, 49.5%; controls, 52.7%). We found no significant association with the severity of AP either.
    Conclusions: Our data do not support a role of ATG16L1 c.898A > G (p.T300A) in the pathogenesis of AP or CP or an influence on the severity of AP.
    MeSH term(s) Animals ; Humans ; Acute Disease ; Autophagy-Related Proteins/genetics ; Pancreatitis/genetics ; Crohn Disease ; Gene Frequency ; Genetic Predisposition to Disease ; Autophagy/genetics ; Polymorphism, Single Nucleotide
    Chemical Substances Autophagy-Related Proteins ; ATG16L1 protein, human
    Language English
    Publishing date 2023-04-20
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 632831-3
    ISSN 1536-4828 ; 0885-3177
    ISSN (online) 1536-4828
    ISSN 0885-3177
    DOI 10.1097/MPA.0000000000002177
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Impact of P-selectin-PSGL-1 Axis on Platelet-Endothelium-Leukocyte Interactions in Fatal COVID-19.

    Granai, Massimo / Warm, Verena / Vogelsberg, Antonio / Milla, Jakob / Greif, Karen / Vogel, Ulrich / Bakchoul, Tamam / Rosenberger, Peter / Quintanilla-Martinez, Leticia / Schürch, Christian M / Klingel, Karin / Fend, Falko / Bösmüller, Hans

    Laboratory investigation; a journal of technical methods and pathology

    2023  Volume 103, Issue 8, Page(s) 100179

    Abstract: ... steps of leukocyte migration: E-selectin, P-selectin, PSGL-1, ICAM1, VCAM1, and CD11b. Image analysis ... selectin, P-selectin, ICAM1, VCAM1). Expression of IL-6 and IL-1β was quantified by RT-qPCR. Expression ... of P-selectin and PSGL-1 was strongly increased in the COVID-19 cohort compared with all control groups ...

    Abstract In critically ill patients infected with SARS-CoV-2, early leukocyte recruitment to the respiratory system was found to be orchestrated by leukocyte trafficking molecules accompanied by massive secretion of proinflammatory cytokines and hypercoagulability. Our study aimed to explore the interplay between leukocyte activation and pulmonary endothelium in different disease stages of fatal COVID-19. Our study comprised 10 COVID-19 postmortem lung specimens and 20 control lung samples (5 acute respiratory distress syndrome, 2 viral pneumonia, 3 bacterial pneumonia, and 10 normal), which were stained for antigens representing the different steps of leukocyte migration: E-selectin, P-selectin, PSGL-1, ICAM1, VCAM1, and CD11b. Image analysis software QuPath was used for quantification of positive leukocytes (PSGL-1 and CD11b) and endothelium (E-selectin, P-selectin, ICAM1, VCAM1). Expression of IL-6 and IL-1β was quantified by RT-qPCR. Expression of P-selectin and PSGL-1 was strongly increased in the COVID-19 cohort compared with all control groups (COVID-19:Controls, 17:23, P < .0001; COVID-19:Controls, 2:75, P < .0001, respectively). Importantly, P-selectin was found in endothelial cells and associated with aggregates of activated platelets adherent to the endothelial surface in COVID-19 cases. In addition, PSGL-1 staining disclosed positive perivascular leukocyte cuffs, reflecting capillaritis. Moreover, CD11b showed a strongly increased positivity in COVID-19 compared with all controls (COVID-19:Controls, 2:89; P = .0002), indicating a proinflammatory immune microenvironment. Of note, CD11b exhibited distinct staining patterns at different stages of COVID-19 disease. Only in cases with very short disease course, high levels of IL-1β and IL-6 mRNA were observed in lung tissue. The striking upregulation of PSGL-1 and P-selectin reflects the activation of this receptor-ligand pair in COVID-19, increasing the efficiency of initial leukocyte recruitment, thus promoting tissue damage and immunothrombosis. Our results show that endothelial activation and unbalanced leukocyte migration play a central role in COVID-19 involving the P-selectin-PSGL-1 axis.
    MeSH term(s) Humans ; P-Selectin/genetics ; P-Selectin/metabolism ; Blood Platelets/metabolism ; Endothelial Cells/metabolism ; Interleukin-6/metabolism ; COVID-19 ; SARS-CoV-2 ; Leukocytes/metabolism ; Endothelium/metabolism
    Chemical Substances P-Selectin ; Interleukin-6
    Language English
    Publishing date 2023-05-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80178-1
    ISSN 1530-0307 ; 0023-6837
    ISSN (online) 1530-0307
    ISSN 0023-6837
    DOI 10.1016/j.labinv.2023.100179
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Functionalized supported membranes for quantifying adhesion of P. falciparum-infected erythrocytes.

    Fröhlich, Benjamin / Dasanna, Anil K / Lansche, Christine / Czajor, Julian / Sanchez, Cecilia P / Cyrklaff, Marek / Yamamoto, Akihisa / Craig, Alister / Schwarz, Ulrich S / Lanzer, Michael / Tanaka, Motomu

    Biophysical journal

    2021  Volume 120, Issue 16, Page(s) 3315–3328

    Abstract: The pathology of Plasmodium falciparum malaria is largely defined by the cytoadhesion of infected erythrocytes to the microvascular endothelial lining. The complexity of the endothelial surface and the large range of interactions available for the ... ...

    Abstract The pathology of Plasmodium falciparum malaria is largely defined by the cytoadhesion of infected erythrocytes to the microvascular endothelial lining. The complexity of the endothelial surface and the large range of interactions available for the infected erythrocyte via parasite-encoded adhesins make analysis of critical contributions during cytoadherence challenging to define. Here, we have explored supported membranes functionalized with two important adhesion receptors, ICAM1 or CD36, as a quantitative biomimetic surface to help understand the processes involved in cytoadherence. Parasitized erythrocytes bound to the receptor-functionalized membranes with high efficiency and selectivity under both static and flow conditions, with infected wild-type erythrocytes displaying a higher binding capacity than do parasitized heterozygous sickle cells. We further show that the binding efficiency decreased with increasing intermolecular receptor distance and that the cell-surface contacts were highly dynamic and increased with rising wall shear stress as the cell underwent a shape transition. Computer simulations using a deformable cell model explained the wall-shear-stress-induced dynamic changes in cell shape and contact area via the specific physical properties of erythrocytes, the density of adhesins presenting knobs, and the lateral movement of receptors in the supported membrane.
    MeSH term(s) CD36 Antigens ; Cell Adhesion ; Erythrocytes/metabolism ; Humans ; Intercellular Adhesion Molecule-1/metabolism ; Malaria, Falciparum ; Plasmodium falciparum
    Chemical Substances CD36 Antigens ; Intercellular Adhesion Molecule-1 (126547-89-5)
    Language English
    Publishing date 2021-07-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218078-9
    ISSN 1542-0086 ; 0006-3495
    ISSN (online) 1542-0086
    ISSN 0006-3495
    DOI 10.1016/j.bpj.2021.07.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The p value wars (again).

    Dirnagl, Ulrich

    European journal of nuclear medicine and molecular imaging

    2019  Volume 46, Issue 12, Page(s) 2421–2423

    MeSH term(s) Probability ; Statistics as Topic
    Language English
    Publishing date 2019-08-03
    Publishing country Germany
    Document type Editorial
    ZDB-ID 8236-3
    ISSN 1619-7089 ; 0340-6997 ; 1619-7070
    ISSN (online) 1619-7089
    ISSN 0340-6997 ; 1619-7070
    DOI 10.1007/s00259-019-04467-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Microenvironment-induced restoration of cohesive growth associated with focal activation of P-cadherin expression in lobular breast carcinoma metastatic to the colon.

    Gronewold, Malte / Grote, Isabel / Bartels, Stephan / Christgen, Henriette / Kandt, Leonie D / Brito, Maria Jose / Cserni, Gàbor / Daemmrich, Maximilian E / Fogt, Franz / Helmke, Burkhard M / Ter Hoeve, Natalie / Lang-Schwarz, Corinna / Vieth, Michael / Wellmann, Axel / Kuehnle, Elna / Kulik, Ulf / Riedel, Gesa / Reineke-Plaass, Tanja / Lehmann, Ulrich /
    Koorman, Thijs / Derksen, Patrick Wb / Kreipe, Hans / Christgen, Matthias

    The journal of pathology. Clinical research

    2024  Volume 10, Issue 2, Page(s) e12361

    Abstract: ... growth and E-cadherin loss. Focal activation of P-cadherin expression in tumor cells that are deficient ... for E-cadherin occurs in a subset of ILCs. Switching from an E-cadherin deficient to P-cadherin ... was assessed by immunohistochemistry for E-cadherin and P-cadherin. CDH1/E-cadherin mutations were ...

    Abstract Invasive lobular carcinoma (ILC) is a special breast cancer type characterized by noncohesive growth and E-cadherin loss. Focal activation of P-cadherin expression in tumor cells that are deficient for E-cadherin occurs in a subset of ILCs. Switching from an E-cadherin deficient to P-cadherin proficient status (EPS) partially restores cell-cell adhesion leading to the formation of cohesive tubular elements. It is unknown what conditions control EPS. Here, we report on EPS in ILC metastases in the large bowel. We reviewed endoscopic colon biopsies and colectomy specimens from a 52-year-old female (index patient) and of 18 additional patients (reference series) diagnosed with metastatic ILC in the colon. EPS was assessed by immunohistochemistry for E-cadherin and P-cadherin. CDH1/E-cadherin mutations were determined by next-generation sequencing. The index patient's colectomy showed transmural metastatic ILC harboring a CDH1/E-cadherin p.Q610* mutation. ILC cells displayed different growth patterns in different anatomic layers of the colon wall. In the tunica muscularis propria and the tela submucosa, ILC cells featured noncohesive growth and were E-cadherin-negative and P-cadherin-negative. However, ILC cells invading the mucosa formed cohesive tubular elements in the intercryptal stroma of the lamina propria mucosae. Inter-cryptal ILC cells switched to a P-cadherin-positive phenotype in this microenvironmental niche. In the reference series, colon mucosa infiltration was evident in 13 of 18 patients, one of which showed intercryptal EPS and conversion to cohesive growth as described in the index patient. The large bowel is a common metastatic site in ILC. In endoscopic colon biopsies, the typical noncohesive growth of ILC may be concealed by microenvironment-induced EPS and conversion to cohesive growth.
    MeSH term(s) Female ; Humans ; Middle Aged ; Carcinoma, Lobular/genetics ; Breast Neoplasms/genetics ; Cadherins/genetics ; Biopsy ; Colon ; Tumor Microenvironment
    Chemical Substances Cadherins
    Language English
    Publishing date 2024-04-15
    Publishing country England
    Document type Case Reports ; Review ; Journal Article
    ZDB-ID 2814357-7
    ISSN 2056-4538 ; 2056-4538
    ISSN (online) 2056-4538
    ISSN 2056-4538
    DOI 10.1002/2056-4538.12361
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: TREX1 p.A129fs and p.Y305C variants in a large multi-ethnic cohort of CADASIL-like unrelated patients.

    Foddis, Marco / Blumenau, Sonja / Holtgrewe, Manuel / Paquette, Kimberly / Westra, Kaitlyn / Alonso, Isabel / Macario, Maria do Carmo / Morgadinho, Ana Sofia / Velon, Ana Graça / Santo, Gustavo / Santana, Isabel / Mönkäre, Saana / Kuuluvainen, Liina / Schleutker, Johanna / Pöyhönen, Minna / Myllykangas, Liisa / Pavlovic, Aleksandra / Kostic, Vladimir / Dobricic, Valerija /
    Lohmann, Ebba / Hanagasi, Hasmet / Santos, Mariana / Guven, Gamze / Bilgic, Basar / Bras, Jose / Beule, Dieter / Dirnagl, Ulrich / Guerreiro, Rita / Sassi, Celeste

    Neurobiology of aging

    2022  Volume 123, Page(s) 208–215

    Abstract: ... p.Ala129fs) clustering in the catalytic domain, in an apparently sporadic 46-year-old patient ... from the USA and a missense mutation (p.Tyr305Cys) in the well conserved C-terminal region, in a 57-year-old ...

    Abstract Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and retinal vasculopathy with cerebral leukodystrophy and systemic manifestations (RVCL-S) are the most common forms of rare monogenic early-onset cerebral small vessel disease and share clinical, and, to different extents, neuroradiological and neuropathological features. However, whether CADASIL and RVCL-S overlapping phenotype may be explained by shared genetic risk or causative factors such as TREX1 coding variants remains poorly understood. To investigate this intriguing hypothesis, we used exome sequencing to screen TREX1 protein-coding variability in a large multi-ethnic cohort of 180 early-onset independent familial and apparently sporadic CADASIL-like Caucasian patients from the USA, Portugal, Finland, Serbia and Turkey. We report 2 very rare and likely pathogenic TREX1 mutations: a loss of function mutation (p.Ala129fs) clustering in the catalytic domain, in an apparently sporadic 46-year-old patient from the USA and a missense mutation (p.Tyr305Cys) in the well conserved C-terminal region, in a 57-year-old patient with positive family history from Serbia. In concert with recent findings, our study expands the clinical spectrum of diseases associated with TREX1 mutations.
    MeSH term(s) Humans ; CADASIL/genetics ; Cerebral Infarction ; Cerebral Small Vessel Diseases/complications ; Leukoencephalopathies/diagnostic imaging ; Leukoencephalopathies/genetics ; Mutation/genetics ; Receptor, Notch3/genetics
    Chemical Substances Receptor, Notch3 ; three prime repair exonuclease 1 (EC 3.1.16.-)
    Language English
    Publishing date 2022-11-26
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 604505-4
    ISSN 1558-1497 ; 0197-4580
    ISSN (online) 1558-1497
    ISSN 0197-4580
    DOI 10.1016/j.neurobiolaging.2022.11.013
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  10. Conference proceedings: Halo-Zeichen bei P(an)-Vaskulitis?

    Krusche, Martin / Schneider, Udo / Holl-Ulrich, Konstanze / Burmester, Gerd-Rüdiger

    2020  , Page(s) FA.38

    Event/congress Deutscher Rheumatologiekongress 2020, 48. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 34. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); sine loco [digital]; ; Deutsche Gesellschaft für Orthopädische Rheumatologie; 2020
    Keywords Medizin, Gesundheit
    Publishing date 2020-09-09
    Publisher German Medical Science GMS Publishing House; Düsseldorf
    Document type Conference proceedings
    DOI 10.3205/20dgrh102
    Database German Medical Science

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