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Pallini C, Pike JA, O'Shea C, Andrews RK, Gardiner EE, Watson SP, Poulter NS. Immobilized collagen prevents shedding and induces sustained GPVI clustering and signaling in platelets. Platelets 2021; 32:59-73. [PMID: 33455536 DOI: 10.1080/09537104.2020.1849607] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Collagen, the most thrombogenic constituent of blood vessel walls, activates platelets through glycoprotein VI (GPVI). In suspension, following platelet activation by collagen, GPVI is cleaved by A Disintegrin And Metalloproteinase (ADAM)10 and ADAM17. In this study, we use single-molecule localization microscopy and a 2-level DBSCAN-based clustering tool to show that GPVI remains clustered along immobilized collagen fibers for at least 3 hours in the absence of significant shedding. Tyrosine phosphorylation of spleen tyrosine kinase (Syk) and Linker of Activated T cells (LAT), and elevation of intracellular Ca2+, are sustained over this period. Syk, but not Src kinase-dependent signaling is required to maintain clustering of the collagen integrin α2β1, whilst neither is required for GPVI. We propose that clustering of GPVI on immobilized collagen protects GPVI from shedding in order to maintain sustained Src and Syk-kinases dependent signaling, activation of integrin α2β1, and continued adhesion.
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Affiliation(s)
- Chiara Pallini
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham , Birmingham, UK.,Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham , Midlands, UK
| | - Jeremy A Pike
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham , Birmingham, UK
| | - Christopher O'Shea
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham , Birmingham, UK
| | - Robert K Andrews
- Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research, Australian National University , Canberra, Australia
| | - Elizabeth E Gardiner
- Department of Cancer Biology and Therapeutics, John Curtin School of Medical Research, Australian National University , Canberra, Australia
| | - Steve P Watson
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham , Birmingham, UK.,Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham , Midlands, UK
| | - Natalie S Poulter
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham , Birmingham, UK.,Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham , Midlands, UK
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2
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Roberts A, Bentley L, Tang T, Stewart F, Pallini C, Juvvanapudi J, Wallace GR, Cooper AJ, Scott A, Thickett D, Lugg ST, Bancroft H, Hemming B, Ferris C, Langman G, Robinson A, Chapman J, Naidu B, Pinkney T, Taylor GS, Brock K, Stamataki Z, Brady CA, Curnow SJ, Gordon J, Qureshi O, Barnes NM. Ex vivo modelling of PD-1/PD-L1 immune checkpoint blockade under acute, chronic, and exhaustion-like conditions of T-cell stimulation. Sci Rep 2021; 11:4030. [PMID: 33597595 PMCID: PMC7889918 DOI: 10.1038/s41598-021-83612-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 01/19/2021] [Indexed: 12/26/2022] Open
Abstract
Blockade of PD-1/PD-L1 interactions is proving an exciting, durable therapeutic modality in a range of cancers whereby T cells are released from checkpoint inhibition to revive their inherent anti-tumour activity. Here we have studied various ways to model ex vivo T cell function in order to compare the impact of the clinically utilised anti-PD-1 antibody, pembrolizumab (Keytruda) on the activation of human T cells: focussing on the release of pro-inflammatory IFNγ and anti-inflammatory IL-10 to assess functionality. Firstly, we investigated the actions of pembrolizumab in an acute model of T-cell activation with either immature or mature allogeneic dendritic cells (DCs); pembrolizumab enhanced IFNγ and IL-10 release from purified CD4+ T-cells in the majority of donors with a bias towards pro-inflammatory cytokine release. Next, we modelled the impact of pembrolizumab in settings of more chronic T-cell activation. In a 7-day antigen-specific response to EBV peptides, the presence of pembrolizumab resulted in a relatively modest increase in both IFNγ and IL-10 release. Where pembrolizumab was assessed against long-term stimulated CD4+ cells that had up-regulated the exhaustion markers TIM-3 and PD-1, there was a highly effective enhancement of the otherwise exhausted response to allogeneic DCs with respect to IFNγ production. By contrast, the restoration of IL-10 production was considerably more limited. Finally, to assess a direct clinical relevance we investigated the consequence of PD-1/PD-L1 blockade in the disease setting of dissociated cells from lung and colon carcinomas responding to allogeneic DCs: here, pembrolizumab once more enhanced IFNγ production from the majority of tumour preparations whereas, again, the increase in IL-10 release was modest at best. In conclusion, we have shown that the contribution of PD-1-revealed by using a canonical blocking antibody to interrupt its interaction with PD-L1-to the production of an exemplar pro- and anti-inflammatory cytokine, respectively, depends in magnitude and ratio on the particular stimulation setting and activation status of the target T cell. We have identified a number of in vitro assays with response profiles that mimic features of dissociated cell populations from primary tumours thereby indicating these represent disease-relevant functional assays for the screening of immune checkpoint inhibitors in current and future development. Such in vitro assays may also support patient stratification of those likely to respond to immuno-oncology therapies in the wider population.
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Affiliation(s)
- Alexander Roberts
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
| | - Lindsay Bentley
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Tina Tang
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Fay Stewart
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Chiara Pallini
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Joel Juvvanapudi
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Graham R Wallace
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, B15 2TT, UK
| | - Alison J Cooper
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
| | - Aaron Scott
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, B15 2TT, UK
| | - David Thickett
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, B15 2TT, UK
| | - Sebastian T Lugg
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, B15 2TT, UK
| | - Hollie Bancroft
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Bridget Hemming
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Charlotte Ferris
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Gerald Langman
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Andrew Robinson
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Joanne Chapman
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Babu Naidu
- MIDRU, Birmingham Heartlands Hospital, Bordesley Green East, Birmingham, B9 5SS, UK
| | - Thomas Pinkney
- Academic Department of Surgery, University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, Birmingham, B15 2GW, UK
| | - Graham S Taylor
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
| | - Kristian Brock
- Diagnostics, Drugs, Devices and Biomarkers, Cancer Research UK Clinical Trials Unit, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Zania Stamataki
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
| | - Catherine A Brady
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - S John Curnow
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - John Gordon
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Omar Qureshi
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK
- Celentyx Ltd, Birmingham Research Park, Vincent Drive, Edgbaston, Birmingham, B15 2SQ, UK
| | - Nicholas M Barnes
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham, B15 2TT, UK.
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Pike JA, Khan AO, Pallini C, Thomas SG, Mund M, Ries J, Poulter NS, Styles IB. Topological data analysis quantifies biological nano-structure from single molecule localization microscopy. Bioinformatics 2020; 36:1614-1621. [PMID: 31626286 PMCID: PMC7162425 DOI: 10.1093/bioinformatics/btz788] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 09/03/2019] [Accepted: 10/17/2019] [Indexed: 01/23/2023] Open
Abstract
Motivation Localization microscopy data is represented by a set of spatial coordinates, each corresponding to a single detection, that form a point cloud. This can be analyzed either by rendering an image from these coordinates, or by analyzing the point cloud directly. Analysis of this type has focused on clustering detections into distinct groups which produces measurements such as cluster area, but has limited capacity to quantify complex molecular organization and nano-structure. Results We present a segmentation protocol which, through the application of persistence-based clustering, is capable of probing densely packed structures which vary in scale. An increase in segmentation performance over state-of-the-art methods is demonstrated. Moreover we employ persistent homology to move beyond clustering, and quantify the topological structure within data. This provides new information about the preserved shapes formed by molecular architecture. Our methods are flexible and we demonstrate this by applying them to receptor clustering in platelets, nuclear pore components, endocytic proteins and microtubule networks. Both 2D and 3D implementations are provided within RSMLM, an R package for pointillist-based analysis and batch processing of localization microscopy data. Availability and implementation RSMLM has been released under the GNU General Public License v3.0 and is available at https://github.com/JeremyPike/RSMLM. Tutorials for this library implemented as Binder ready Jupyter notebooks are available at https://github.com/JeremyPike/RSMLM-tutorials. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Jeremy A Pike
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Abdullah O Khan
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Chiara Pallini
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Steven G Thomas
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Markus Mund
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany.,Department of Biochemistry, University of Geneva, 1211 Geneva 4, Switzerland
| | - Jonas Ries
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany
| | - Natalie S Poulter
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Iain B Styles
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, Midlands, UK.,School of Computer Science, University of Birmingham, Birmingham B15 2TT, UK
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4
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Dunster JL, Unsworth AJ, Bye AP, Haining EJ, Sowa MA, Di Y, Sage T, Pallini C, Pike JA, Hardy AT, Nieswandt B, García Á, Watson SP, Poulter NS, Gibbins JM, Pollitt AY. Interspecies differences in protein expression do not impact the spatiotemporal regulation of glycoprotein VI mediated activation. J Thromb Haemost 2020; 18:485-496. [PMID: 31680418 PMCID: PMC7027541 DOI: 10.1111/jth.14673] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Accurate protein quantification is a vital prerequisite for generating meaningful predictions when using systems biology approaches, a method that is increasingly being used to unravel the complexities of subcellular interactions and as part of the drug discovery process. Quantitative proteomics, flow cytometry, and western blotting have been extensively used to define human platelet protein copy numbers, yet for mouse platelets, a model widely used for platelet research, evidence is largely limited to a single proteomic dataset in which the total amount of proteins was generally comparatively higher than those found in human platelets. OBJECTIVES To investigate the functional implications of discrepancies between levels of mouse and human proteins in the glycoprotein VI (GPVI) signalling pathway using a systems pharmacology model of GPVI. METHODS The protein copy number of mouse platelet receptors was determined using flow cytometry. The Virtual Platelet, a mathematical model of GPVI signalling, was used to determine the consequences of protein copy number differences observed between human and mouse platelets. RESULTS AND CONCLUSION Despite the small size of mouse platelets compared to human platelets they possessed a greater density of surface receptors alongside a higher concentration of intracellular signalling proteins. Surprisingly the predicted temporal profile of Syk activity was similar in both species with predictions supported experimentally. Super resolution microscopy demonstrates that the spatial distribution of Syk is similar between species, suggesting that the spatial distribution of receptors and signalling molecules in activated platelets, rather than their copy number, is important for signalling pathway regulation.
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Affiliation(s)
- Joanne L. Dunster
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
| | - Amanda J. Unsworth
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
- Department of Life SciencesSchool of Science and EngineeringManchester Metropolitan UniversityManchesterUK
| | - Alexander P. Bye
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
| | - Elizabeth J. Haining
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Marcin A. Sowa
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
- Platelet Proteomics GroupCenter for Research in Molecular Medicine and Chronic Diseases (CIMUS)Universidade de Santiago de CompostelaSantiago de CompostelaSpain
| | - Ying Di
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Tanya Sage
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
| | - Chiara Pallini
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Jeremy A. Pike
- Centre of Membrane Proteins and Receptors (COMPARE)Universities of Birmingham and NottinghamMidlandsBirminghamUK
| | - Alexander T. Hardy
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Bernhard Nieswandt
- Department of Experimental BiomedicineUniversity HospitalUniversity of WürzburgWürzburgGermany
| | - Ángel García
- Platelet Proteomics GroupCenter for Research in Molecular Medicine and Chronic Diseases (CIMUS)Universidade de Santiago de CompostelaSantiago de CompostelaSpain
| | - Steve P. Watson
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
- Centre of Membrane Proteins and Receptors (COMPARE)Universities of Birmingham and NottinghamMidlandsBirminghamUK
| | - Natalie S. Poulter
- Institute of Cardiovascular Sciences (ICVS)College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
- Centre of Membrane Proteins and Receptors (COMPARE)Universities of Birmingham and NottinghamMidlandsBirminghamUK
| | - Jonathan M. Gibbins
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
| | - Alice Y. Pollitt
- Institute for Cardiovascular and Metabolic Research (ICMR)School of Biological SciencesUniversity of ReadingReadingUK
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5
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Onselaer MB, Nagy M, Pallini C, Pike JA, Perrella G, Quintanilla LG, Eble JA, Poulter NS, Heemskerk JWM, Watson SP. Comparison of the GPVI inhibitors losartan and honokiol. Platelets 2019; 31:187-197. [PMID: 30849265 PMCID: PMC7034533 DOI: 10.1080/09537104.2019.1585526] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Losartan and honokiol are small molecules which have been described to inhibit aggregation of platelets by collagen. Losartan has been proposed to block clustering of GPVI but not to affect binding of collagen. Honokiol has been reported to bind directly to GPVI but only at a concentration that is three orders of magnitude higher than that needed for inhibition of aggregation. The mechanism of action of both inhibitors is so far unclear. In the present study, we confirm the inhibitory effects of both agents on platelet aggregation by collagen and show that both also block the aggregation induced by the activation of CLEC-2 or the low affinity immune receptor FcγRIIa at similar concentrations. For GPVI and CLEC-2, this inhibition is associated with a reduction in protein tyrosine phosphorylation of multiple proteins including Syk. In contrast, on a collagen surface, spreading of platelets and clustering of GPVI (measured by single molecule localisation microscopy) was not altered by losartan or honokiol. Furthermore, in flow whole-blood, both inhibitors suppressed the formation of multi-layered platelet thrombi at arteriolar shear rates at concentrations that hardly affect collagen-induced platelet aggregation in platelet rich plasma. Together, these results demonstrate that losartan and honokiol have multiple effects on platelets which should be considered in the use of these compounds as anti-platelet agents.
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Affiliation(s)
- Marie-Blanche Onselaer
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Magdolna Nagy
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, MD, The Netherlands
| | - Chiara Pallini
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Jeremy A Pike
- Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands
| | - Gina Perrella
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, MD, The Netherlands
| | - Lourdes Garcia Quintanilla
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Johannes A Eble
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
| | - Natalie S Poulter
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands
| | - Johan W M Heemskerk
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, MD, The Netherlands
| | - Steve P Watson
- Institute of Cardiovascular Sciences, IBR Building, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,Centre of Membrane Proteins and Receptors (COMPARE), Universities of Birmingham and Nottingham, The Midlands
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6
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Amato G, Pallini C. [Resuscitation treatment of the severely burned patient]. Minerva Anestesiol 1978; 44:157-70. [PMID: 652163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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7
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Amato G, Pallini C, Marini A, Aliboni E. [Study on the antihemorrhagic action of aminaphtone]. Minerva Stomatol 1977; 26:91-4. [PMID: 304152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This research is the continuation of a previous published paper. The blood losses occurring during multiple dental extractions under general anesthesia in pretreated patients (not with a recent new capillary protector) have been measured. The results obtained have been processed statistically and confirm the effectiveness of the product.
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8
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Ariano M, Pallini C. [Evaluation of the analgesic effect of sustained-release d-propoxyphene]. Minerva Anestesiol 1969; 35:563-9. [PMID: 4182514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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9
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Leonardi F, Pallini C, Baldassini AR. [Controlled preliminary evaluation of the analgesic activity of a new compound (Z.476) in post-operative pain]. Minerva Anestesiol 1969; 35:95-8. [PMID: 5824707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Novelli GP, Pagni E, Pagliai P, Ariano M, Pallini C. [Experimental study of the changes of peripheral circulation caused by adrenergic blocking]. Acta Anaesthesiol 1968; 19:989-1021. [PMID: 5756953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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11
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Novelli GP, Ariano M, Pirani A, Perna AM, Pallini C. [Hemodynamic changes induced by mathaproterenol (Alupent)]. Acta Anaesthesiol 1968; 19:349-70. [PMID: 5757406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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12
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Pallini C, Leonardi F. [Diazepam as the single narcotic for minor operations]. Acta Anaesthesiol 1968; 19:109-118. [PMID: 5757061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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13
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Pallini C, Bocconi GA. [Experiences with methoxyflurane in minor surgery]. Acta Anaesthesiol 1968; 19:71-79. [PMID: 5757071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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14
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Novelli GP, Frullani F, Ariano M, Pallini C, Pagni E. [Systemic and regional hemodynamics during treatment with angiotensin]. Policlinico Prat 1967; 74:1620-30. [PMID: 4304975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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15
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Novelli GP, Pagni E, Pirani A, Ariano M, Pallini C. [The so-called toxicity of hyperbaric oxygen as an adrenergic phenomenon. Proposals for a pathogenetic interpretation]. Acta Anaesthesiol 1967; 18:801-31. [PMID: 4241300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Novelli GP, Zampolini M, Pallini C, Celiberti A, Cortesini C. [The treatment of irreversible shock with "pharmacological" doses of corticosteroids: effects on mesenteric hemodynamics and possible mechanism of action]. Minerva Anestesiol 1967; 33:310-7. [PMID: 5613775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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Pallini C, Eeri R. [Treatment of some forms of surgical shock with a recent corticoid derivative (6-methyl-prednisolone)]. Osp Ital Chir 1967; 16:223-9. [PMID: 5601241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Cattaneo AD, Di Tizio S, Pallini C, Bona N. [Intravenous lidocaine: preferred anesthetic in hepato-biliary surgery]. Minerva Anestesiol 1966; 32:710-4. [PMID: 4968502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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19
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Pallini C, Frullani F. [Anesthesia for cesarean section. Use of halothane in the induction]. Minerva Anestesiol 1966; 32:522-5. [PMID: 5994079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Ieri R, Pallini C, Frullani F. [More on pain from succinylcholine: utility of ultraslow curarization]. Minerva Anestesiol 1966; 32:294-9. [PMID: 5918364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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21
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Frullani F, Pallini C. [The role of preanesthetic medication in the pathogenesis of neonatal depression]. Acta Anaesthesiol 1966; 17:339-350. [PMID: 6013324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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22
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Cortesini C, Celiberti A, Pallini C, Novelli GP. [Mesenteric circulation in the pathogenesis of experimental shock. Study on eviscerated animals]. Acta Anaesthesiol 1966; 17:129-40. [PMID: 6012682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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23
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Pallini C. [New possibilities of mucolytic treatment in bronchopneumopathies of surgical patients]. Clin Ter 1966; 36:225-39. [PMID: 5935213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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24
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Pallini C. [Modern acquisitions on the pathogenesis and substitutive therapy of shock caused by burns]. Minerva Anestesiol 1966; 32:34-9. [PMID: 5909957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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25
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Pallini C. [Our experience with neuroleptoanalgesia]. Minerva Anestesiol 1965; 31:659-64. [PMID: 5882841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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26
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Pallini C. [2 cases of prolonged apnea following administration of succinylcholine]. Osp Ital Chir 1965; 13:701-7. [PMID: 5881413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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27
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Pallini C, Ristori M. [Considerations on 3 cases of severe burn shock treated with low molecular weight dextran]. Osp Ital Chir 1965; 13:491-8. [PMID: 5865416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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