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Krishingner GA, Forouzandeh M, Rodríguez JA, Ashouri K, Motaparthi K, Whiles BB. Successful Management of Angioinvasive Deep Fungal Infections of the Penis: A Multidisciplinary Approach with Intraoperative Frozen Margins. Am J Case Rep 2023; 24:e939971. [PMID: 37782653 PMCID: PMC10556538 DOI: 10.12659/ajcr.939971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/16/2023] [Accepted: 06/15/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Mucormycosis, a cause of opportunistic infections in immunocompromised patients, is rarely identified in the penis. The literature often describes drastic surgical interventions or rapid patient demise, with scant mention of surgical management specifics. The objective of this report is to detail our experience with this unique infection and highlight the utility of intraoperative frozen margins during surgical management. CASE REPORT Herein, we describe successful treatment of a 55-year-old man with biopsy-proven B-cell acute lymphoblastic leukemia (B-ALL) undergoing Hyper-CVAD (Cyclophosphamide, Vincristine, Adriamycin, and Dexamethasone) therapy who initially presented with an asymptomatic violaceous lesion of the penis. Differential diagnoses ranged from infectious, vasculogenic, and pharmacologic in nature. Ultimately, a punch biopsy tissue culture confirmed angioinvasive fungal infection with Rhizopus and Fusarium species. Initial debridement combined with intravenous antifungal therapy was unsuccessful. However, partial penectomy with use of intraoperative frozen margins, a 5-week course of antifungal therapy, and continued B-ALL treatment allowed effective and lasting resolution of the infection, with partial penile preservation. CONCLUSIONS This case supports a multidisciplinary approach as the primary treatment for penile angioinvasive fungal infections. This includes treatment of the underlying immunocompromising condition, appropriate intravenous antifungal therapy, and urgent operative debridement. This report highlights the importance of utilizing intraoperative frozen sections to ensure negative margins and to optimize overall tissue sparing in this anatomically sensitive area.
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Affiliation(s)
| | | | - José A. Rodríguez
- Department of Infectious Disease, University of Florida, Gainesville, FL, USA
| | - Kenan Ashouri
- Department of Urology, University of Florida, Gainesville, FL, USA
| | - Kiran Motaparthi
- Department of Dermatology, University of Florida, Gainesville, FL, USA
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2
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Pérez-Silva I, Canales-Feliciano GD, Rodríguez JA, Mendoza-Huizar LH, Pérez-Estrada S, Ibarra IS, Páez-Hernández ME. The Evaluation of Cellulose Acetate Capsules Functionalized for the Removal of Cd(II). Polymers (Basel) 2023; 15:3917. [PMID: 37835966 PMCID: PMC10575433 DOI: 10.3390/polym15193917] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Received: 08/31/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Cellulose acetate is derived from cellulose and has the characteristics of biodegradability and reusability. So, it has been used for the elimination of toxic compounds capable of producing different diseases, such as cadmium, that result from human and industrial activity. For this reason, capsules functionalized with Cyanex 923 were prepared and characterized by FTIR spectroscopy, Energy Dispersive X-ray Spectroscopy (EDX), and SEM. The functionalized capsules were used for removing and recovering Cd(II) by modifying variables such as HCl concentration in the extraction medium and carrier content in the capsules, among others. The extraction of cadmium from battery leachates and the three isotherm models, Langmuir, Freundlich, and Dubinin Radushkevich, were also tested to model the cadmium removal process. The results showed a favorable physical sorption with a good capacity for extraction and the possibility of reusing the capsules for up to seven cycles without a decrease in the percentage of cadmium recovery.
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Affiliation(s)
- Irma Pérez-Silva
- Academic Area of Chemistry, Autonomous University of Hidalgo State, Carr. Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma C.P. 42184, Hidalgo, Mexico
| | | | | | | | | | | | - M. Elena Páez-Hernández
- Academic Area of Chemistry, Autonomous University of Hidalgo State, Carr. Pachuca-Tulancingo Km. 4.5, Mineral de la Reforma C.P. 42184, Hidalgo, Mexico
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3
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Sapountzis N, Alamanda VK, Hidaka C, Joseph A, Chiu YF, Cross M, Rodríguez JA. The Role of Constraint in Revision Total Knee Replacement for Instability: Full Component Revision Vs Isolated Polyethylene Exchange in Selected Patients. Arthroplast Today 2023; 21:101134. [PMID: 37193537 PMCID: PMC10182170 DOI: 10.1016/j.artd.2023.101134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 02/06/2023] [Accepted: 03/08/2023] [Indexed: 05/18/2023] Open
Abstract
Background Instability is a common indication for revision after total knee arthroplasty. Replacement of multiple components is the current standard, but isolated polyethylene liner exchange (IPE) may present a less-morbid alternative. This study aims to determine (1) whether IPE results in similar rerevision frequency to component revision in select patients with symptomatic instability and (2) the effect of increasing constraint on the outcome. Methods We retrospectively reviewed 117 patients revised for symptomatic total knee arthroplasty instability from January 2016 to December 2017. The component revision (60 patients) or IPE (57 patients) cohorts were further stratified based on whether constraint was increased or not. The primary objective was to compare rerevision rates 2 years after component revision vs IPE. The secondary objectives consisted of evaluating reasons for rerevision, preoperative and postoperative patient-reported outcome measures, and range of motion. Results The rerevision rate was 18%, with no statistical difference between component and IPE cohorts. Cases where level of constraint increased due to revision, a significantly lower rate of rerevision was detected (9 of 77) (12%) than in cases where constraint did not increase (12 of 39) (31%) (P=0.012). This association was also noted in the component revision cohort but not in the IPE cohort (P=0.011). Conclusions Rerevision occurred at similar frequencies 2 years after IPE or component revision for total knee arthroplasty instability. For component revision, increased constraint was associated with significantly fewer rerevisions.
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Affiliation(s)
- Nicolas Sapountzis
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Vignesh K. Alamanda
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Chisa Hidaka
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Amethia Joseph
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Yu-fen Chiu
- Biostatistics Core, Hospital for Special for Surgery, New York, NY, USA
| | - Michael Cross
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - José A. Rodríguez
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
- Corresponding author. Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, 7 Hillside Avenue, Port Washington, NY, USA. Tel.: +1 516 286 5464.
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4
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Jiménez JD, Betancourt LE, Danielis M, Zhang H, Zhang F, Orozco I, Xu W, Llorca J, Liu P, Trovarelli A, Rodríguez JA, Colussi S, Senanayake SD. Identification of Highly Selective Surface Pathways for Methane Dry Reforming Using Mechanochemical Synthesis of Pd–CeO 2. ACS Catal 2022; 12:12809-12822. [PMID: 36313524 PMCID: PMC9595205 DOI: 10.1021/acscatal.2c01120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/04/2022] [Revised: 08/24/2022] [Indexed: 11/30/2022]
Abstract
![]()
The methane dry reforming (DRM) reaction mechanism was
explored
via mechanochemically prepared Pd/CeO2 catalysts (PdAcCeO2M), which yield unique Pd–Ce interfaces, where PdAcCeO2M has a distinct reaction mechanism and higher reactivity
for DRM relative to traditionally synthesized impregnated Pd/CeO2 (PdCeO2IW). In situ characterization and density
functional theory calculations revealed that the enhanced chemistry
of PdAcCeO2M can be attributed to the presence of a carbon-modified
Pd0 and Ce4+/3+ surface arrangement, where distinct
Pd–CO intermediate species and strong Pd–CeO2 interactions are activated and sustained exclusively under reaction
conditions. This unique arrangement leads to highly selective and
distinct surface reaction pathways that prefer the direct oxidation
of CHx to CO, identified on PdAcCeO2M using isotope labeled diffuse reflectance infrared Fourier
transform spectroscopy and highlighting linear Pd–CO species
bound on metallic and C-modified Pd, leading to adsorbed HCOO [1595
cm–1] species as key DRM intermediates, stemming
from associative CO2 reduction. The milled materials contrast
strikingly with surface processes observed on IW samples (PdCeO2IW) where the competing reverse water gas shift reaction predominates.
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Affiliation(s)
- Juan D. Jiménez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Luis E. Betancourt
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Maila Danielis
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Hong Zhang
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Feng Zhang
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Ivan Orozco
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Jordi Llorca
- Department of Chemical Engineering, Institute of Energy Technologies, Universitat Politécnica de Catalunya, EEBE, Eduard Maristany 10-14, 08018Barcelona, Spain
| | - Ping Liu
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Alessandro Trovarelli
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - José A. Rodríguez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York11794, United States
| | - Sara Colussi
- Polytechnic Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Sanjaya D. Senanayake
- Chemistry Division, Brookhaven National Laboratory, Upton, New York11793, United States
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Abstract
![]()
Electron crystallography
has a storied history which rivals that
of its more established X-ray-enabled counterpart. Recent advances
in data collection and analysis have sparked a renaissance in the
field, opening a new chapter for this venerable technique. Burgeoning
interest in electron crystallography has spawned innovative methods
described by various interchangeable labels (3D ED, MicroED, cRED,
etc.). This Review covers concepts and findings relevant to the practicing
crystallographer, with an emphasis on experiments aimed at using electron
diffraction to elucidate the atomic structure of three-dimensional
molecular crystals.
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Affiliation(s)
- Ambarneil Saha
- UCLA-DOE Institute for Genomics and Proteomics, University of California, Los Angeles, Los Angeles, California 90095, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Shervin S Nia
- UCLA-DOE Institute for Genomics and Proteomics, University of California, Los Angeles, Los Angeles, California 90095, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - José A Rodríguez
- UCLA-DOE Institute for Genomics and Proteomics, University of California, Los Angeles, Los Angeles, California 90095, United States.,Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
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6
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Montesinos-Vázquez T, Pérez-Silva I, Galán-Vidal CA, Ibarra IS, Rodríguez JA, Páez-Hernández ME. Solution blow spinning polysulfone-Aliquat 336 nanofibers: synthesis, characterization, and application for the extraction and preconcentration of losartan from aqueous solutions. Journal of Polymer Engineering 2022. [DOI: 10.1515/polyeng-2022-0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Nanofibers are materials used in a wide range of applications due to their unique physicochemical properties. As an alternative to the most common method of its manufacturing (electrospinning) blow spinning has been used since it has greater production efficiency and simplicity. A wide variety of polymers is used for its preparation and can be modified to improve the interaction and selectivity toward specific analytes. Thereby nanofibers have been used for the extraction or removal of organic compounds such as drugs but there are still few reports of drug extractions like losartan. In this work polysulfone-Aliquat 336 nanofibers were prepared using the blow spinning method to extract and preconcentrate losartan. The studies showed that Aliquat 336 incorporation significantly improve the extraction of losartan with polysulfone fibers. Adsorption process was thermodynamically favorable with an adsorption capacity of 15.45 mg·g−1. Thus, it was possible to extract more than 92% of initial losartan using 10 mg of polysulfone-Aliquat 336 fibers (9 and 3.5% (w/v)), at pH 6 from deionized water and synthetic wastewater. Finally, losartan preconcentration was evaluated to facilitate its quantification using ultraviolet–visible spectrometry (UV-Vis), which allowed the determination of this drug at concentrations below the detection limit.
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Affiliation(s)
- Tanese Montesinos-Vázquez
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
| | - Irma Pérez-Silva
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
| | - Carlos A. Galán-Vidal
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
| | - Israel S. Ibarra
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
| | - José A. Rodríguez
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
| | - M. Elena Páez-Hernández
- Laboratorio 2, Área Académica de Química , Universidad Autónoma del Estado de Hidalgo , Carretera Pachuca-Tulancingo Km. 4.5 , 42184 Mineral de la Reforma , Hidalgo , Mexico
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7
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González-Zamora J, Hernandez M, Recalde S, Bezunartea J, Montoliu A, Bilbao-Malavé V, Orbe J, Rodríguez JA, Llorente-González S, Fernández-Robredo P, García-Layana A. Matrix Metalloproteinase 10 Contributes to Choroidal Neovascularisation. Biomedicines 2022; 10:biomedicines10071557. [PMID: 35884862 PMCID: PMC9313238 DOI: 10.3390/biomedicines10071557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/05/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022] Open
Abstract
Age-related macular degeneration (AMD) is currently the main cause of severe visual loss among older adults in developed countries. The pathophysiology has not been clarified, but oxidative stress is believed to play a major role. Matrix metalloproteinases (MMP) may play a prominent role in several steps of the pathophysiology of AMD, especially in its neovascular form; therefore, there is of great interest in understanding their role in choroidal neovascularisation. This study aimed to elucidate the role of MMP10 in the development of choroidal neovascularisation (CNV). We have demonstrated that MMP10 was expressed by retinal pigment epithelium cells and endothelial cells of the neovascular membrane, in cell culture, mouse and human retina. MMP10 expression and activity increased under oxidative stress conditions in ARPE-19 cells. MMP10-/- mice developed smaller laser-induced areas of CNV. Furthermore, to exclude a systemic MMP10 imbalance in these patients, plasma MMP10 concentrations were assessed in an age- and sex-matched sample of 52 control patients and 52 patients with neovascular AMD and no significant differences were found between the groups, demonstrating that MMP10 induction is a local phenomenon. Our findings suggest that MMP10 participates in the development of choroidal neovascularisation and promotes MMP10 as a possible new therapeutic target.
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Affiliation(s)
- Jorge González-Zamora
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
| | - María Hernandez
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
- Correspondence: (M.H.); (P.F.-R.)
| | - Sergio Recalde
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
| | - Jaione Bezunartea
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
| | - Ana Montoliu
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
| | - Valentina Bilbao-Malavé
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
| | - Josune Orbe
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
- Laboratory of Atherothrombosis, Program of Cardiovascular Diseases, CIMA-Universidad de Navarra, CIBERCV, 31008 Pamplona, Spain
| | - José A. Rodríguez
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
- Laboratory of Atherothrombosis, Program of Cardiovascular Diseases, CIMA-Universidad de Navarra, CIBERCV, 31008 Pamplona, Spain
| | - Sara Llorente-González
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
| | - Patricia Fernández-Robredo
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
- Correspondence: (M.H.); (P.F.-R.)
| | - Alfredo García-Layana
- Retinal Pathologies and New Therapies Group, Experimental Ophthalmology Laboratory, Department of Ophthalmology, Clinica Universidad de Navarra, 31008 Pamplona, Spain; (J.G.-Z.); (S.R.); (J.B.); (A.M.); (V.B.-M.); (S.L.-G.); (A.G.-L.)
- Navarra Institute for Health Research, IdiSNA, 31008 Pamplona, Spain; (J.O.); (J.A.R.)
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8
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Cerón‐Guevara MI, Santos EM, Lorenzo JM, Pateiro M, Bermúdez‐Piedra R, Rodríguez JA, Castro‐Rosas J, Rangel‐Vargas E. Partial replacement of fat and salt in liver pâté by addition of
Agaricus bisporus
and
Pleurotus ostreatus
flour. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15076] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Magdalena I. Cerón‐Guevara
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carr. Pachuca‐Tulancingo Km 4.5 s/n, Col. Carboneras, Mineral de la Reforma Hidalgo 42183 Mexico
| | - Eva M. Santos
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carr. Pachuca‐Tulancingo Km 4.5 s/n, Col. Carboneras, Mineral de la Reforma Hidalgo 42183 Mexico
| | - José M. Lorenzo
- Meat Technology Centre of Galicia Rúa Galicia N° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas Ourense 32900 Spain
- Área de Tecnología de los Alimentos Facultad de Ciencias de Ourense Universidad de Vigo Ourense 32004 Spain
| | - Mirian Pateiro
- Meat Technology Centre of Galicia Rúa Galicia N° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas Ourense 32900 Spain
| | - Roberto Bermúdez‐Piedra
- Meat Technology Centre of Galicia Rúa Galicia N° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas Ourense 32900 Spain
| | - José A. Rodríguez
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carr. Pachuca‐Tulancingo Km 4.5 s/n, Col. Carboneras, Mineral de la Reforma Hidalgo 42183 Mexico
| | - Javier Castro‐Rosas
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carr. Pachuca‐Tulancingo Km 4.5 s/n, Col. Carboneras, Mineral de la Reforma Hidalgo 42183 Mexico
| | - Esmeralda Rangel‐Vargas
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carr. Pachuca‐Tulancingo Km 4.5 s/n, Col. Carboneras, Mineral de la Reforma Hidalgo 42183 Mexico
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9
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Sahoo S, Rodríguez JA, Serna M, Spindler KP, Derwin KA, Iannotti JP, Ricchetti ET. Effectiveness of a Web-Based Electronic Prospective Data Collection Tool for Surgical Data in Shoulder Arthroplasty. ACTA ACUST UNITED AC 2021; 31:422-429. [PMID: 34690468 DOI: 10.1053/j.sart.2020.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 11/11/2022]
Abstract
Background The purpose of this study was to demonstrate the validity and efficiency of the Outcomes Management and Evaluation (OME) system, a prospectively designed electronic data collection tool, for collecting comprehensive and standardized surgical data in shoulder arthroplasty. Methods Surgical data from the first 100 cases of shoulder arthroplasty that were collected into the OME database were analyzed. Surgeons completed a traditional narrative operative note and also an OME case report using an encrypted smartphone. A blinded reviewer extracted data from the operative notes and implant logs in the electronic medical records (EMR) by manual chart review. OME and EMR data were compared with regard to data counts and agreement between 39 variables related to preoperative pathology, including rotator cuff status and glenoid wear, and surgical procedures. Data counts were assessed using both raw percentages and with McNemar's test (with continuity correction). Agreement of nominal variables was analyzed using Cohen's unweighted kappa (κ) and of ordinal variables using the linearly weighted Cohen's test. Efficiency was assessed by calculating the median time needed to complete OME. Results Compared to the EMR, the OME database had significantly higher data counts for 56% (22 of 39) of the variables assessed. A high level of proportional and statistical agreement was demonstrated between the data in the two datasets. 10 of 39 variables had 100% agreement but could not be statistically compared because both datasets had the same single response under those variables. Among the 29 variables that were compared, 79% (23 of 29) of variables had >80% raw proportional agreement, and 69% (20 of 29) of variables showed at least substantial agreement (κ > 0.6). The median time for completing OME surgery data entry was 92 seconds (IQR 70 - 126). Conclusion The prospectively designed, electronic data entry system (OME) is an efficient and valid tool for collecting comprehensive and standardized surgical data on shoulder arthroplasty. Level of Evidence Level IV.
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Affiliation(s)
- Sambit Sahoo
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH USA 44195.,Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
| | - José A Rodríguez
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
| | - Matthew Serna
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
| | | | - Kurt P Spindler
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
| | - Kathleen A Derwin
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH USA 44195
| | - Joseph P Iannotti
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
| | - Eric T Ricchetti
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH USA 44195
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10
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Griborio AG, Rodríguez JA, Enriquez L, McCorquodale JA. Use of three-dimensional computational fluid dynamics model for a new configuration of circular primary settling tank. Water Sci Technol 2021; 84:333-348. [PMID: 34312341 DOI: 10.2166/wst.2021.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Appropriately used, computational fluid dynamics models are powerful tools to design and optimize primary settling tanks (PSTs). This paper uses a Fluent-based 3D model to identify the possible causes for underperformance of the circular PSTs at the Cali waste-water treatment plant, Colombia, and to propose design modifications to improve performance. A new configuration for the center well (CW) is proposed and evaluated. The influence of a rotational sludge scraper and of continuous sludge removal were considered in the numerical simulation. The new configuration included the modification of the current CW diameter and the location of a second baffle with the CW. The results suggest that the installation of the second baffle allows a more uniform flow distribution within the PST and consequently, the hydrodynamic problems associated with short-circuiting of the influent to the bottom of the tank are reduced. The second baffle suppresses the downward current, effectively dissipates the kinetic energy in the influent and forces the particles to move toward the bottom of the PST. In addition, the second CW baffle allows the formation in the inlet zone of a consistently more concentrated sludge blanket layer and thicker sludge, reducing the risk of solids leaving in the effluent of the PST.
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Affiliation(s)
- A G Griborio
- Hazen and Sawyer, P.C., 4000 Hollywood Blvd 750N, Hollywood, FL 33021, USA
| | - J A Rodríguez
- EIDENAR, Faculty of Engineering, University of Valle, Cali, Colombia
| | - L Enriquez
- EIDENAR, Faculty of Engineering, University of Valle, Cali, Colombia
| | - J A McCorquodale
- Department of Civil Engineering, University of New Orleans, New Orleans, LA 70122, USA
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11
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Nelson HM, Siu JC, Saha A, Cascio D, MacMillan SN, Wu SB, Lu C, Rodríguez JA, Houk KN, Lin S. Isolation and X-ray Crystal Structure of an Electrogenerated TEMPO–N3 Charge-Transfer Complex. Org Lett 2021; 23:454-458. [DOI: 10.1021/acs.orglett.0c03966] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hosea M. Nelson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Juno C. Siu
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Ambarneil Saha
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Duilio Cascio
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- UCLA-DOE Institute for Genomics & Proteomics, University of California, Los Angeles, California 90095, United States
| | - Samantha N. MacMillan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Song-Bai Wu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chenxi Lu
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - José A. Rodríguez
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- UCLA-DOE Institute for Genomics & Proteomics, University of California, Los Angeles, California 90095, United States
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Song Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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12
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López DJ, Rodríguez JA, Bañuelos S. Nucleophosmin, a multifunctional nucleolar organizer with a role in DNA repair. Biochim Biophys Acta Proteins Proteom 2020; 1868:140532. [PMID: 32853771 DOI: 10.1016/j.bbapap.2020.140532] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
Nucleophosmin (NPM1) is a mostly nucleolar protein with crucial functions in cell growth and homeostasis, including regulation of ribosome biogenesis and stress response. Such multiple activities rely on its ability to interact with nucleic acids and with hundreds of proteins, as well as on a dynamic subcellular distribution. NPM1 is thus regulated by a complex interplay between localization and interactions, further modulated by post-translational modifications. NPM1 is a homopentamer, with globular domains connected by long, intrinsically disordered linkers. This configuration allows NPM1 to engage in liquid-liquid phase separation phenomena, which could underlie a key role in nucleolar organization. Here, we will discuss NPM1 conformational and functional versatility, emphasizing its emerging, and still largely unexplored, role in DNA damage repair. Since NPM1 is altered in a subtype of acute myeloid leukaemia (AML), we will also present ongoing research on the molecular mechanisms underlying its pathogenic role and potential NPM1-targeting therapeutic strategies.
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Affiliation(s)
- David J López
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José A Rodríguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Sonia Bañuelos
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain.
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13
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Garibo D, Borbón-Nuñez HA, de León JND, García Mendoza E, Estrada I, Toledano-Magaña Y, Tiznado H, Ovalle-Marroquin M, Soto-Ramos AG, Blanco A, Rodríguez JA, Romo OA, Chávez-Almazán LA, Susarrey-Arce A. Green synthesis of silver nanoparticles using Lysiloma acapulcensis exhibit high-antimicrobial activity. Sci Rep 2020; 10:12805. [PMID: 32732959 PMCID: PMC7393152 DOI: 10.1038/s41598-020-69606-7] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [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: 05/15/2019] [Accepted: 07/15/2020] [Indexed: 01/01/2023] Open
Abstract
The scientific community is exploiting the use of silver nanoparticles (AgNPs) in nanomedicine and other AgNPs combination like with biomaterials to reduce microbial contamination. In the field of nanomedicine and biomaterials, AgNPs are used as an antimicrobial agent. One of the most effective approaches for the production of AgNPs is green synthesis. Lysiloma acapulcensis (L. acapulcensis) is a perennial tree used in traditional medicine in Mexico. This tree contains abundant antimicrobial compounds. In the context of antimicrobial activity, the use of L. acapulcensis extracts can reduce silver to AgNPs and enhance its antimicrobial activity. In this work, we demonstrate such antimicrobial activity effect employing green synthesized AgNPs with L. acapulcensis. The FTIR and LC-MS results showed the presence of chemical groups that could act as either (i) reducing agents stabilizing the AgNPs or (ii) antimicrobial capping agents enhancing antimicrobial properties of AgNPs. The synthesized AgNPs with L. acapulcensis were crystalline with a spherical and quasi-spherical shape with diameters from 1.2 to 62 nm with an average size diameter of 5 nm. The disk diffusion method shows the magnitude of the susceptibility over four pathogenic microorganisms of clinical interest. The antimicrobial potency obtained was as follows: E. coli ≥ S. aureus ≥ P. aeruginosa > C. albicans. The results showed that green synthesized (biogenic) AgNPs possess higher antimicrobial potency than chemically produced AgNPs. The obtained results confirm a more significant antimicrobial effect of the biogenic AgNPs maintaining low-cytotoxicity than the AgNPs produced chemically.
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Affiliation(s)
- Diana Garibo
- Cátedras Conacyt-Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Departamento de Microbiología, Ensenada, Baja California, México. .,Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México.
| | - Hugo A Borbón-Nuñez
- Cátedras Conacyt-Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, México
| | - Jorge N Díaz de León
- Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México
| | - Ernesto García Mendoza
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada, Baja California, México
| | - Iván Estrada
- Cátedras Conacyt-Centro de Investigación en Materiales Avanzados S.C. (CIMAV), Departamento de Ingeniería de Materiales y Química, Chihuahua, México
| | - Yanis Toledano-Magaña
- Universidad Autónoma de Baja California (UABC), Escuela de Ciencias de la Salud, Unidad Valle Dorado, Ensenada, México
| | - Hugo Tiznado
- Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México
| | - Marcela Ovalle-Marroquin
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada, Baja California, México
| | | | - Alberto Blanco
- Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México
| | - José A Rodríguez
- Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México
| | - Oscar A Romo
- Universidad Nacional Autónoma de México (UNAM), Centro de Nanociencias y Nanotecnología, Ensenada, Baja California, México
| | - Luis A Chávez-Almazán
- Secretaría de Salud de Guerrero, Banco de Sangre Regional Zona Centro, Chilpancingo de los Bravo, Guerrero, México
| | - Arturo Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
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14
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Rodríguez JA, Wang B, Cappelli MA. Dual-polarization Dirac cones in a simple 2D square lattice photonic crystal. Opt Lett 2020; 45:2486-2489. [PMID: 32356797 DOI: 10.1364/ol.389163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
We report on dual-polarization Dirac cones in a simple square lattice two-dimensional (2D) photonic crystal (PC) based on transmission at accidental degeneracies centered at the $k = {0}$k=0 symmetry ($ \Gamma $Γ) point. Finite difference time domain simulations are used to identify the material and geometric parameters for Dirac-like dispersion. A configuration that produces a Dirac-like point for both transverse electric and transverse magnetic polarizations at the same frequency is presented. The PC dispersion shows the expected threefold degenerate linear branch crossings at the Dirac-like point. Full-field electromagnetic wave simulations exhibit some common behaviors of devices based on Dirac-like dispersion, such as cloaking and waveguiding. The configuration works for a considerable range of the parameter space, and thus is experimentally realizable with a wide range of materials.
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15
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Matilla L, Roncal C, Ibarrola J, Arrieta V, García-Peña A, Fernández-Celis A, Navarro A, Álvarez V, Gainza A, Orbe J, Cachofeiro V, Zalba G, Sádaba R, Rodríguez JA, López-Andrés N. A Role for MMP-10 (Matrix Metalloproteinase-10) in Calcific Aortic Valve Stenosis. Arterioscler Thromb Vasc Biol 2020; 40:1370-1382. [PMID: 32188274 DOI: 10.1161/atvbaha.120.314143] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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: 12/18/2022]
Abstract
OBJECTIVE Aortic valve (AV) calcification plays an important role in the progression of aortic stenosis (AS). MMP-10 (matrix metalloproteinase-10 or stromelysin-2) is involved in vascular calcification in atherosclerosis. We hypothesize that MMP-10 may play a pathophysiological role in calcific AS. Approach and Results: Blood samples (n=112 AS and n=349 controls) and AVs (n=88) from patients undergoing valve replacement were analyzed. Circulating MMP-10 was higher in patients with AS compared with controls (P<0.001) and correlated with TNFα (tumor necrosis factor α; rS=0.451; P<0.0001). MMP-10 was detected by immunochemistry in AVs from patients with AS colocalized with aortic valve interstitial cells markers α-SMA (α-smooth muscle actin) and vimentin and with calcification markers Runx2 (Runt-related transcription factor 2) and SRY (sex-determining region Y)-box 9. MMP-10 expression in AVs was further confirmed by RT-qPCR and western blot. Ex vivo, MMP-10 was elevated in the conditioned media of AVs from patients with AS and associated with interleukin-1β (rS=0.5045, P<0.001) and BMP (bone morphogenetic protein)-2 (rS=0.5003, P<0.01). In vitro, recombinant human MMP-10 induced the overexpression of inflammatory, fibrotic, and osteogenic markers (interleukin-1β, α-SMA, vimentin, collagen, BMP-4, Sox9, OPN [osteopontin], BMP-9, and Smad 1/5/8; P<0.05) and cell mineralization in aortic valve interstitial cells isolated from human AVs, in a mechanism involving Akt (protein kinase B) phosphorylation. These effects were prevented by TIMP-1 (tissue inhibitor of metalloproteinases type 1), a physiological MMP inhibitor, or specifically by an anti-MMP-10 antibody. CONCLUSIONS MMP-10, which is overexpressed in aortic valve from patients with AS, seems to play a central role in calcification in AS through Akt phosphorylation. MMP-10 could be a new therapeutic target for delaying the progression of aortic valve calcification in AS.
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Affiliation(s)
- Lara Matilla
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Carmen Roncal
- Laboratory of Atherothrombosis, Program of Cardiovascular Diseases, CIMA Universidad de Navarra, IdiSNA, Pamplona, Spain (C.R., J.O., J.A.R.).,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (C.R., J.O., V.C., J.A.R.)
| | - Jaime Ibarrola
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Vanessa Arrieta
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Amaia García-Peña
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Amaya Fernández-Celis
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Adela Navarro
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Virginia Álvarez
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Alicia Gainza
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - Josune Orbe
- Laboratory of Atherothrombosis, Program of Cardiovascular Diseases, CIMA Universidad de Navarra, IdiSNA, Pamplona, Spain (C.R., J.O., J.A.R.).,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (C.R., J.O., V.C., J.A.R.)
| | - Victoria Cachofeiro
- CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (C.R., J.O., V.C., J.A.R.).,Departamento de Fisiología, Facultad Medicina, Universidad Complutense, Instituto de Investigacioón Sanitaria Gregorio Maranñoón (IiSGM), Madrid, Spain (V.C.)
| | - Guillermo Zalba
- Department of Biochemistry and Genetics, University of Navarra, IdiSNA, Pamplona, Spain (G.Z.)
| | - Rafael Sádaba
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.)
| | - José A Rodríguez
- Laboratory of Atherothrombosis, Program of Cardiovascular Diseases, CIMA Universidad de Navarra, IdiSNA, Pamplona, Spain (C.R., J.O., J.A.R.).,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (C.R., J.O., V.C., J.A.R.)
| | - Natalia López-Andrés
- From the Cardiovascular Translational Research, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain (L.M., J.I., V. Arrieta, A.G.-P., A.F.-C., A.N., V. Álvarez, A.G., R.S., N.L.-A.).,Université de Lorraine, INSERM, Centre d'Investigations Cliniques-Plurithématique 1433, UMR 1116, CHRU de Nancy, France (N.L.-A.)
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16
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Jones CG, Asay M, Kim LJ, Kleinsasser JF, Saha A, Fulton TJ, Berkley KR, Cascio D, Malyutin AG, Conley MP, Stoltz BM, Lavallo V, Rodríguez JA, Nelson HM. Characterization of Reactive Organometallic Species via MicroED. ACS Cent Sci 2019; 5:1507-1513. [PMID: 31572777 PMCID: PMC6764211 DOI: 10.1021/acscentsci.9b00403] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Indexed: 06/10/2023]
Abstract
Here we apply microcrystal electron diffraction (MicroED) to the structural determination of transition-metal complexes. We find that the simultaneous use of 300 keV electrons, very low electron doses, and an ultrasensitive camera allows for the collection of data without cryogenic cooling of the stage. This technique reveals the first crystal structures of the classic zirconocene hydride, colloquially known as "Schwartz's reagent", a novel Pd(II) complex not amenable to solution-state NMR or X-ray crystallography, and five other paramagnetic and diamagnetic transition-metal complexes.
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Affiliation(s)
- Christopher G. Jones
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Matthew Asay
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Lee Joon Kim
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Jack F. Kleinsasser
- Department of Chemistry, University of
California, Riverside, California 92521, United
States
| | - Ambarneil Saha
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Tyler J. Fulton
- The Warren and Katharine Schlinger Laboratory for
Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering and
Beckman Institute, California Institute of
Technology, Pasadena, California 91125, United
States
| | - Kevin R. Berkley
- Department of Chemistry, University of
California, Riverside, California 92521, United
States
| | - Duilio Cascio
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Andrey G. Malyutin
- The Warren and Katharine Schlinger Laboratory for
Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering and
Beckman Institute, California Institute of
Technology, Pasadena, California 91125, United
States
| | - Matthew P. Conley
- Department of Chemistry, University of
California, Riverside, California 92521, United
States
| | - Brian M. Stoltz
- The Warren and Katharine Schlinger Laboratory for
Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering and
Beckman Institute, California Institute of
Technology, Pasadena, California 91125, United
States
| | - Vincent Lavallo
- Department of Chemistry, University of
California, Riverside, California 92521, United
States
| | - José A. Rodríguez
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
| | - Hosea M. Nelson
- Department of Chemistry and Biochemistry and
UCLA-DOE Institute for Genomics & Proteomics,
University of California, Los Angeles, California 90095,
United States
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17
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Arrieta V, Sádaba JR, Álvarez V, Rodríguez JA, López-Andrés N. Galectin-3 as a novel biotarget in cardiovascular alterations associated to development of severe aortic stenosis. An Sist Sanit Navar 2019; 42:199-208. [PMID: 31317953 DOI: 10.23938/assn.0643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Aortic stenosis is one of the most common heart valve diseases, as well as one of the most common causes of heart failure in the elderly. Currently, there are no medical therapies to prevent or slow the progression of the disease. When symptoms develop alongside severe aortic stenosis, there is a poor prognosis unless aortic valve replacement is performed. Aortic stenosis is a heterogeneous disease with a complex pathophysiology involving structural and biological changes of the valve, as well as adaptive and maladaptive compensatory changes in the myocardium and vasculature in response to chronic pressure overload. Galectin-3 serves important functions in numerous biological activities including cell growth, apoptosis, differentiation, inflammation and fibrosis. With evidence emerging to support the function of Galectin-3, the current review aims to summarize the latest literature regarding the potential of Galectin-3 as therapeutic target in aortic valve and cardiovascular alterations associated with aortic stenosis.
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18
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Lorente L, Martín MM, Ramos L, Argueso M, Cáceres JJ, Solé-Violán J, Jiménez A, Borreguero-León JM, González-Rivero AF, Orbe J, Rodríguez JA, Páramo JA. High serum levels of tissue inhibitor of matrix metalloproteinase-1 during the first week of a malignant middle cerebral artery infarction in non-surviving patients. BMC Neurol 2019; 19:167. [PMID: 31319804 PMCID: PMC6637612 DOI: 10.1186/s12883-019-1401-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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] [Received: 11/13/2018] [Accepted: 07/11/2019] [Indexed: 12/19/2022] Open
Abstract
Background Higher circulating levels of tissue inhibitor of matrix metalloproteinases (TIMP)-1 early after ischemic stroke have been associated with lower survival. The objectives of this study were to determine serum TIMP-1 levels during the first week of a severe cerebral infarction in surviving and non-surviving patients, and whether those levels during the first week could be used as a mortality biomarker for these patients. Methods We included patients with severe malignant middle cerebral artery infarction (MMCAI) defined as computer tomography showing ischaemic changes in more than 50% of the middle cerebral artery territory and Glasgow Coma Scale (GCS) ≤ 8. We measured serum levels of matrix metalloproteinases (MMP)-9 and TIMP-1. End-point study was 30-day mortality. Results We found higher TIMP-1 concentrations at days 1 (p < 0.001), 4 (p = 0.001), and 8 (p = 0.03) of MMCAI in non- urviving (n = 34) than in surviving (n = 34) patients. We found lower serum MMP-9 concentrations at day 1 (p = 0.03) of MMCAI and no significant differences at days 4 and 8. ROC curve analysis of TIMP-1 concentrations performed at days 1, 4, and 8 of MMCAI showed an area under curve to predict 30-day mortality of 81% (p < 0.001), 80% (p < 0.001) and 72% (p = 0.07) respectively. Conclusions The new findings of our study were that non-surviving MMCAI patients showed higher serum TIMP-1 levels during the first week of MMCAI that surviving patients, and those levels during the first week of MMCAI could be used as mortality biomarkers.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias. Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, 38010, Santa Cruz de Tenerife, Spain
| | - Luis Ramos
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, 38713, Breña Alta, La Palma, Spain
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez n°17-19, 46004, Valencia, Spain
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr Pasteur s/n, 35016, Las Palmas de Gran Canaria, Spain
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr Negrín, Barranco de la Ballena s/n, 35010, Las Palmas de Gran Canaria, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain
| | - Juan M Borreguero-León
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain
| | - Agustín F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain
| | - Josune Orbe
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, 31008, Pamplona, Spain
| | - José A Rodríguez
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, 31008, Pamplona, Spain
| | - José A Páramo
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, 31008, Pamplona, Spain
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Palenzuela P, Delgado N, Rodríguez JA. Exploring the Relationship between Contextual Performance and Burnout in Healthcare Professionals. Revista de Psicología del Trabajo y de las Organizaciones 2019. [DOI: 10.5093/jwop2019a13] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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González-García A, López-Pérez W, González-Hernández R, Rodríguez JA, Milośević MV, Peeters FM. Tunable 2D-gallium arsenide and graphene bandgaps in a graphene/GaAs heterostructure: an ab initio study. J Phys Condens Matter 2019; 31:265502. [PMID: 30840939 DOI: 10.1088/1361-648x/ab0d70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The bandgap behavior of 2D-GaAs and graphene have been investigated with van der Waals heterostructured into a yet unexplored graphene/GaAs bilayer, under both uniaxial stress along c axis and different planar strain distributions. The 2D-GaAs bandgap nature changes from [Formula: see text]-K indirect in isolated monolayer to [Formula: see text]-[Formula: see text] direct in graphene/GaAs bilayer. In the latter, graphene exhibits a bandgap of 5 meV. The uniaxial stress strongly affects the graphene electronic bandgap, while symmetric in-plane strain does not open the bandgap in graphene. Nevertheless, it induces remarkable changes on the GaAs bandgap-width around the Fermi level. However, when applying asymmetric in-plane strain to graphene/GaAs, the graphene sublattice symmetry is broken, and the graphene bandgap is open at the Fermi level to a maximum width of 814 meV. This value is much higher than that reported for just graphene under asymmetric strain. The [Formula: see text]-[Formula: see text] direct bandgap of GaAs remains unchanged in graphene/GaAs under different types of applied strain. The analyses of phonon dispersion and the elastic constants yield the dynamical and mechanical stability of the graphene/GaAs system, respectively. The calculated mechanical properties for bilayer heterostructure are better than those of their constituent monolayers. This finding, together with the tunable graphene bandgap not only by the strength but also by the direction of the strain, enhance the potential for strain engineering of ultrathin group-III-V electronic devices hybridized by graphene.
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Affiliation(s)
- A González-García
- Grupo de Investigación en Física Aplicada, Departamento de Física, Universidad del Norte, Barranquilla, Colombia. Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
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21
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Plata JJ, Remesal ER, Graciani J, Márquez AM, Rodríguez JA, Sanz JF. Understanding the Photocatalytic Properties of Pt/CeO x /TiO 2 : Structural Effects on Electronic and Optical Properties. Chemphyschem 2019; 20:1624-1629. [PMID: 31046196 DOI: 10.1002/cphc.201900141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/10/2019] [Indexed: 01/12/2023]
Abstract
Ceria-titania interfaces play a crucial role in different chemical processes but are especially promising for the photocatalytic splitting of water using light in the visible wavelength region when Pt is added to the system. However, the complexity of this hierarchical structure hampers the study of the origin of its outstanding properties. In this article, the structural, electronic and optoelectronic properties of CeO2 /TiO2 systems containing 1D, 2D, and 3D particles of ceria are analyzed by means of density functional calculations. Adsorption sites and vacancy effects have been studied to model Pt adsorption. Density of states calculations and absorption spectra simulations explain the behavior of these systems. Finally, these models are used for the screening of other metals that can be combined with this heterostructure to potentially find more efficient water splitting photocatalysts.
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Affiliation(s)
- J J Plata
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla s/n, 41012, Sevilla
| | - E R Remesal
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla s/n, 41012, Sevilla
| | - Jesús Graciani
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla s/n, 41012, Sevilla
| | - A M Márquez
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla s/n, 41012, Sevilla
| | - J A Rodríguez
- Chemistry Department, Brookhaven National Laboratory Upton, New York, 11973-5000, United States
| | - Javier Fernández Sanz
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla s/n, 41012, Sevilla
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22
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Luria-Pérez R, Candelaria PV, Daniels-Wells TR, Rodríguez JA, Helguera G, Penichet ML. Amino acid residues involved in the heparin-binding activity of murine IL-12 in the context of an antibody-cytokine fusion protein. Cytokine 2019; 120:220-226. [PMID: 31121497 DOI: 10.1016/j.cyto.2019.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 03/18/2019] [Accepted: 04/08/2019] [Indexed: 12/28/2022]
Abstract
An antibody-cytokine fusion protein, composed of the murine single-chain cytokine interleukin-12 (IL-12) genetically fused to a human IgG3 specific for the human tumor-associated antigen HER2/neu maintains antigen binding, cytokine bioactivity, and IL-12 heparin-binding activity. This latter property is responsible for the binding of the cytokine to glycosaminoglycans (GAGs) on the cell surface and the extracellular matrix and has been implicated in modulating IL-12 bioactivity. Previous studies indicate that the p40 subunit of human and murine IL-12 is responsible for the heparin-binding activity of this heterodimeric cytokine. In the present study we used bioinformatic analysis and site-directed mutagenesis to develop a version of the antibody-(IL-12) fusion protein without heparin-binding activity. This was accomplished by replacing the basic arginine (R) and lysine (K) residues in the cluster of amino acids 254-260 (RKKEKMK) of the murine IL-12 p40 subunit by the neutral non-polar amino acid alanine (A), generating an AAAEAMA mutant fusion protein. ELISA and flow cytometry demonstrated that the antibody fusion protein lacks heparin-binding activity but retains antigen binding. A T-cell proliferation assay showed IL-12 bioactivity in this construct. However, the IL-12 bioactivity is decreased compared to its non-mutated counterpart, which is consistent with an ancillary role of the heparin-binding site of IL-12 in modulating its activity. Thus, we have defined a cluster of amino acid residues with a crucial role in the heparin-binding activity of murine IL-12 in the context of an antibody-cytokine fusion protein.
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Affiliation(s)
- Rosendo Luria-Pérez
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Pierre V Candelaria
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Tracy R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - José A Rodríguez
- Department of Chemistry and Biochemistry at UCLA, Los Angeles, CA, USA; UCLA-DOE Institute, Los Angeles, CA, USA; The Molecular Biology Institute, UCLA, CA, USA
| | - Gustavo Helguera
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA.
| | - Manuel L Penichet
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, USA; Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; The Molecular Biology Institute, UCLA, CA, USA; Jonsson Comprehensive Cancer Center, UCLA, CA, USA; UCLA AIDS Institute, Los Angeles, CA, USA.
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Rodríguez JA, Entezari V, Iannotti JP, Ricchetti ET. Pre-operative planning for reverse shoulder replacement: the surgical benefits and their clinical translation. Ann Joint 2019. [DOI: 10.21037/aoj.2018.12.09] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Lorente L, Martín MM, Ramos L, Argueso M, Cáceres JJ, Solé-Violán J, Jiménez A, Borreguero-León JM, González-Rivero AF, Orbe J, Rodríguez JA, Páramo JA. Persistently high circulating tissue inhibitor of matrix metalloproteinase-1 levels in non-survivor brain trauma injury patients. J Crit Care 2019; 51:117-121. [PMID: 30802757 DOI: 10.1016/j.jcrc.2019.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 02/07/2019] [Accepted: 02/10/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Previously, higher circulating levels of matrix metalloproteinase (MMP)-9 and tissue inhibitor matrix metalloproteinases (TIMP)-1 were reported in the first hours after TBI in blood samples from patients with poor prognosis. Thus, the objectives of this study were to determine whether MMP-9 and TIMP-1 levels during the first week of a severe TBI could be used as biomarker predictive of mortality. METHODS We included patients with severe TBI (defined as Glasgow Coma Scale lower than 9), and with Injury Severity Score in non-cranial aspects lower than 9. We determined serum concentrations of MMP-9 and TIMP-1 at days 1, 4 and 8 of TBI. RESULTS TIMP-1 concentrations at days 1 (p < .001), 4 (p = .001), and 8 (p = .01) of TBI were higher in non-surviving (n = 34) than in surviving (n = 90) patients. ROC curve analyses showed an area under curve of TIMP-1 concentrations at days 1, 4, and 8 of TBI to predict 30-day mortality of 78% (p < .001), 76% (p < .001) and 71% (p = .02) respectively. CONCLUSIONS The most relevant new findings of our study were that TIMP-1 levels during the first week of a severe TBI were higher in non-surviving than in surviving patients and that could be used as biomarker predictive of mortality.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain
| | - Luis Ramos
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez n°17-19, Valencia 46004, Spain
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - Juan M Borreguero-León
- Laboratory Deparment, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - Agustín F González-Rivero
- Laboratory Deparment, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - Josune Orbe
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona 31008, Spain.
| | - José A Rodríguez
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona 31008, Spain.
| | - José A Páramo
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona 31008, Spain.
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25
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Pavón JJ, López D, Mondragón F, Gallego J, Arias SL, Luitjohan K, Holybee B, Torres Y, Rodríguez JA, Echeverry-Rendón M, Civantos A, Allain JP. Balancing biofunctional and biomechanical properties using porous titanium reinforced by carbon nanotubes. J Biomed Mater Res A 2018; 107:719-731. [PMID: 30474272 DOI: 10.1002/jbm.a.36586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/26/2018] [Accepted: 11/06/2018] [Indexed: 11/07/2022]
Abstract
Despite the well-known advantages of the titanium-based implant systems, they still lack an optimal balance between biofunctionality and mechanical strength, especially regarding the modulation of cellular response and a desired implant osseointegration. In this work, we fabricated a nanocomposite based on porous commercially pure grade 4 titanium (c.p. Ti) reinforced with carbon nanotubes (CNT) at 5% and 10% w/w, with the aim of obtaining a nanocomposite with lower stiffness compared to traditional titanium-based implants and with the mechanical strength and bioactivity owed by the CNT. Results obtained by scanning electron microscopy, X-ray photoelectron spectroscopy, and atomic force microscopy characterization showed that the CNT dispersed and incorporated into the porous c.p. Ti matrix. Interestingly, CNT were associated with a higher twining within neighbor Ti grains, which was indeed consistent with an increased in nano-hardness. Biological evaluation by MTT and Comet assay revealed that the nanocomposites did not induce genotoxicity and cytotoxicity on two different cells lines despite the presence of nickel at the surface. Accordingly, a purification step would be required before these CNT can be used for biomedical applications. Our results indicate that incorporation of CNT into porous c.p. Ti is a promising avenue to achieve an adequate balance between biofunctionality and mechanical strength in Ti-based scaffolds for tissue replacement. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 719-731, 2019.
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Affiliation(s)
- Juan Jose Pavón
- Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Bioengineering Program, Universidad de Antioquia, Medellín, Colombia
| | - Diana López
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y naturales, Universidad de Antioquia, Medellín, Colombia
| | - Fanor Mondragón
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y naturales, Universidad de Antioquia, Medellín, Colombia
| | - Jaime Gallego
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y naturales, Universidad de Antioquia, Medellín, Colombia
| | - Sandra L Arias
- Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Department of Bioengineering, University of Illinois at Urbana-Champaign, Champaign, Illinois
| | - Kara Luitjohan
- School of Materials Engineering, Purdue University, West Lafayette, Indiana
| | - Brandon Holybee
- Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois
| | - Yadir Torres
- Department of Engineering and Materials Science and Transportation, University of Seville, Seville, Spain
| | - José A Rodríguez
- Department of Engineering and Materials Science and Transportation, University of Seville, Seville, Spain
| | - Mónica Echeverry-Rendón
- Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois
| | - Ana Civantos
- Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois
| | - Jean Paul Allain
- Department of Nuclear, Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, Illinois.,Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Champaign, Illinois
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26
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Purroy A, Roncal C, Orbe J, Meilhac O, Belzunce M, Zalba G, Villa-Bellosta R, Andrés V, Parks WC, Páramo JA, Rodríguez JA. Matrix metalloproteinase-10 deficiency delays atherosclerosis progression and plaque calcification. Atherosclerosis 2018; 278:124-134. [DOI: 10.1016/j.atherosclerosis.2018.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 02/01/2023]
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27
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Pablos MV, Rodríguez JA, García-Hortigüela P, Fernández A, Beltrán EM, Torrijos M, Fernández C. Sublethal and chronic effects of reclaimed water on aquatic organisms. Looking for relationships between physico-chemical characterisation and toxic effects. Sci Total Environ 2018; 640-641:1537-1547. [PMID: 30021319 DOI: 10.1016/j.scitotenv.2018.05.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/16/2018] [Accepted: 05/28/2018] [Indexed: 06/08/2023]
Abstract
The use of reclaimed water for irrigation and aquaculture purposes is generally considered a reliable alternative for sustainable water management in regions with water scarcity. Many organic compounds, generally called compounds of emerging concern (CECs), have been detected in reclaimed water, which implies continuous exposure for aquatic organisms. To date no quality criteria have been proposed for this group of compounds. This work aims to assess the acute, sublethal and chronic effects of reclaimed water using two representative organisms of the aquatic compartment; the green alga Chlorella vulgaris and the microcrustacean Daphnia magna. The study comprises the 72 h-algal growth inhibition test, the D. magna feeding bioassay and the D. magna reproduction test. The results highlighted, for the selected characterised compounds, no differences in the concentrations between the different tertiary WWTP treatments, except for the particular case of carbamazepine. Considering seasonality, no differences were observed between the two different sample collection campaigns. The sublethal and chronic effects observed for these samples could not be explained by the lower concentrations found in the chemical characterisation. However, in the majority of cases, dilution of raw reclaimed water reduced the toxic effects of these samples. Several interactions among compounds can affect the mixture's toxicity. Canonical correlation analyses (CCA) were included to explore the potential relationships between the physico-chemical characterisation of reclaimed water and effects on aquatic organisms. The results corroborated the toxic effect of some pharmaceuticals, in particular beta-blockers and antibiotics, on the growth and yield of green algae, as well as inhibition of daphnia reproduction. Thus the CCA methods could help to elucidate the potential relationships between the physico-chemical characterisation and toxic effects by considering all the potential interactions.
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Affiliation(s)
- M V Pablos
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain.
| | - J A Rodríguez
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - P García-Hortigüela
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - A Fernández
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - E M Beltrán
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - M Torrijos
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
| | - C Fernández
- Laboratory for Ecotoxicology, Department of Environment, INIA, Crta. La Coruña km 7, 28040 Madrid, Spain
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Ferreira TA, Rodríguez JA, Galán-Vidal CA, Castrillejo Y, Barrado E. Flow based determination of Cr(VI) by adsorptive cathodic stripping voltammetry on an immobilized magnetic poly(ionic liquid) modified electrode. Talanta 2018; 183:172-176. [DOI: 10.1016/j.talanta.2018.02.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/01/2018] [Accepted: 02/12/2018] [Indexed: 10/18/2022]
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de Miguel I, Orbe J, Sánchez-Arias JA, Rodríguez JA, Salicio A, Rabal O, Belzunce M, Sáez E, Xu M, Wu W, Tan H, Ma H, Páramo JA, Oyarzabal J. Phenotypic Screening To Discover Novel Chemical Series as Efficient Antihemorrhagic Agents. ACS Med Chem Lett 2018; 9:428-433. [PMID: 29795754 DOI: 10.1021/acsmedchemlett.7b00549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 04/16/2018] [Indexed: 12/24/2022] Open
Abstract
In an effort to find novel chemical series as antifibrinolytic agents, we explore α-phenylsulfonyl-α-spiropiperidines bearing different zinc-binding groups (ZBGs) to target those metalloproteinases involved in the fibrinolytic process: MMP3 and MMP10. Surprisingly, all these new chemical series were inactive against these metalloproteinases; however, several new molecules retained the antifibrinolytic activity in a phenotypic functional assay using thromboelastometry and human whole blood. Further optimization led to compound 38 as a potent antifibrinolytic agent in vivo, three times more efficacious than the current standard-of-care (tranexamic acid, TXA) at 300 times lower dose. Finally, in order to decipher the underlying mode-of-action leading to this phenotypic response, an affinity-based probe 39 was successfully designed to identify the target involved in this response: a potentially unknown mechanism-of-action in the fibrinolytic process.
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Affiliation(s)
| | - Josune Orbe
- CIBER Cardiovascular (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | | | - José A. Rodríguez
- CIBER Cardiovascular (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Agustina Salicio
- CIBER Cardiovascular (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | | | | | | | - Musheng Xu
- WuXi Apptec (Tianjin) Co. Ltd., TEDA, No. 111 HuangHai Road, Fourth Avenue, Tianjin 300456, P. R. China
| | - Wei Wu
- WuXi Apptec (Tianjin) Co. Ltd., TEDA, No. 111 HuangHai Road, Fourth Avenue, Tianjin 300456, P. R. China
| | - Haizhong Tan
- WuXi Apptec (Tianjin) Co. Ltd., TEDA, No. 111 HuangHai Road, Fourth Avenue, Tianjin 300456, P. R. China
| | - Hongyu Ma
- WuXi Apptec (Tianjin) Co. Ltd., TEDA, No. 111 HuangHai Road, Fourth Avenue, Tianjin 300456, P. R. China
| | - José A. Páramo
- Hematology Service, Clínica Universidad de Navarra, Pamplona, Spain
- CIBER Cardiovascular (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
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Urbaneja MA, Skjærven L, Aubi O, Underhaug J, López DJ, Arregi I, Alonso-Mariño M, Cuevas A, Rodríguez JA, Martinez A, Bañuelos S. Conformational stabilization as a strategy to prevent nucleophosmin mislocalization in leukemia. Sci Rep 2017; 7:13959. [PMID: 29066752 PMCID: PMC5655693 DOI: 10.1038/s41598-017-14497-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 10/11/2017] [Indexed: 01/20/2023] Open
Abstract
Nucleophosmin (NPM) is a nucleolar protein involved in ribosome assembly and cell homeostasis. Mutations in the C-terminal domain of NPM that impair native folding and localization are associated with acute myeloid leukemia (AML). We have performed a high-throughput screening searching for compounds that stabilize the C-terminal domain. We identified three hit compounds which show the ability to increase the thermal stability of both the C-terminal domain as well as full-length NPM. The best hit also seemed to favor folding of an AML-like mutant. Computational pocket identification and molecular docking support a stabilization mechanism based on binding of the phenyl/benzene group of the compounds to a particular hydrophobic pocket and additional polar interactions with solvent-accessible residues. Since these results indicate a chaperoning potential of our candidate hits, we tested their effect on the subcellular localization of AML-like mutants. Two compounds partially alleviated the aggregation and restored nucleolar localization of misfolded mutants. The identified hits appear promising as pharmacological chaperones aimed at therapies for AML based on conformational stabilization of NPM.
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Affiliation(s)
- María A Urbaneja
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain.
| | - Lars Skjærven
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Oscar Aubi
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Jarl Underhaug
- Department of Biomedicine, University of Bergen, Bergen, Norway
- Department of Chemistry, University of Bergen, Bergen, Norway
| | - David J López
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Igor Arregi
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
- R&D Department, Roxall España, Bilbao, Spain
| | - Marián Alonso-Mariño
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Andoni Cuevas
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José A Rodríguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Aurora Martinez
- Department of Biomedicine, University of Bergen, Bergen, Norway.
- K.G. Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, Bergen, Norway.
| | - Sonia Bañuelos
- Biofisika Institute (UPV/EHU, CSIC) and Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Leioa, Spain
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Rodríguez JA, Sobrino T, López-Arias E, Ugarte A, Sánchez-Arias JA, Vieites-Prado A, de Miguel I, Oyarzabal J, Páramo JA, Campos F, Orbe J, Castillo J. CM352 Reduces Brain Damage and Improves Functional Recovery in a Rat Model of Intracerebral Hemorrhage. J Am Heart Assoc 2017; 6:JAHA.117.006042. [PMID: 28572282 PMCID: PMC5669199 DOI: 10.1161/jaha.117.006042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Intracerebral hemorrhage (ICH) is an acute neurological disorder with high mortality and no effective treatment. In addition to the initial bleeding event, rebleeding and hematoma expansion are associated with poor outcome in these patients. We studied the effectiveness of the new antifibrinolytic agent CM352, a short‐half‐life matrix metalloproteinase inhibitor, for achieving early hemostasis and improving functional recovery in a rat model of collagenase‐induced ICH. Methods and Results ICH was induced by striatal injection of collagenase, and 1 hour later, rats received an intravenous injection of saline (n=6) or CM352 (1 mg/kg, n=6). Hematoma (basal and after 3 and 24 hours) and lesion (14 days) volumes were quantified on T2‐weighted (T2) magnetic resonance images. Neurological and functional recovery was evaluated by using Bederson score and a cylinder test (basal, 24 hours, and 14 days). Early treatment (1 hour) with CM352 was efficient reducing hematoma expansion at 3 hours (P<0.01) and, more markedly, at 24 hours (P<0.01). Decreased bleeding after antifibrinolytic treatment was accompanied by reduced interleukin‐6 levels at 3 hours (P<0.05) and smaller lesion volume at 14 days (P<0.01). CM352 drastically reduced sensorimotor impairment (cylinder test) after ICH in rats at 24 hours (P<0.01) and 14 days (P<0.01). Similarly, it also attenuated neurological deficit (Bederson scale) at 24 hours (P<0.01) and 14 days (P<0.01). Interestingly, late (3 hours) CM352 administration also resulted in reduced lesion size and better functional outcome. Conclusions CM352, a new antifibrinolytic agent and matrix metalloproteinase inhibitor, effectively prevented hematoma growth and reduced lesion size in ICH in association with improved functional and neurological recovery.
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Affiliation(s)
- José A Rodríguez
- Atherosclerosis Research Laboratory, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain.,CIBER Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain
| | - Tomás Sobrino
- Clinical Neurosciences Research Laboratory, Department of Neurology, Hospital Clínico Universitario, Health Research Institute of Santiago de Compostela, Universidade de Santiago de Compostela, Spain
| | - Esteban López-Arias
- Clinical Neurosciences Research Laboratory, Department of Neurology, Hospital Clínico Universitario, Health Research Institute of Santiago de Compostela, Universidade de Santiago de Compostela, Spain
| | - Ana Ugarte
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain
| | - Juan A Sánchez-Arias
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain
| | - Alba Vieites-Prado
- Clinical Neurosciences Research Laboratory, Department of Neurology, Hospital Clínico Universitario, Health Research Institute of Santiago de Compostela, Universidade de Santiago de Compostela, Spain
| | - Irene de Miguel
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain
| | - Julen Oyarzabal
- Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain
| | - José A Páramo
- Hematology Service, Clínica Universidad de Navarra, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain.,CIBER Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco Campos
- Clinical Neurosciences Research Laboratory, Department of Neurology, Hospital Clínico Universitario, Health Research Institute of Santiago de Compostela, Universidade de Santiago de Compostela, Spain
| | - Josune Orbe
- Atherosclerosis Research Laboratory, Health Research Institute of Navarra-IdiSNA, University of Navarra, Pamplona, Spain
| | - José Castillo
- Clinical Neurosciences Research Laboratory, Department of Neurology, Hospital Clínico Universitario, Health Research Institute of Santiago de Compostela, Universidade de Santiago de Compostela, Spain.,CIBER Cardiovascular, Instituto de Salud Carlos III, Madrid, Spain
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Luria-Pérez R, Helguera G, Rodríguez JA. Antibody-mediated targeting of the transferrin receptor in cancer cells. Bol Med Hosp Infant Mex 2016; 73:372-379. [PMID: 29421281 DOI: 10.1016/j.bmhimx.2016.11.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 11/23/2016] [Indexed: 12/13/2022] Open
Abstract
Iron is essential for cell growth and is imported into cells in part through the action of transferrin (Tf), a protein that binds its receptor (TfR1 or CD71) on the surface of a cell, and then releases iron into endosomes. TfR1 is a single pass type-II transmembrane protein expressed at basal levels in most tissues. High expression of TfR1 is typically associated with rapidly proliferating cells, including various types of cancer. TfR1 is targeted by experimental therapeutics for several reasons: its cell surface accessibility, constitutive endocytosis into cells, essential role in cell growth and proliferation, and its overexpression by cancer cells. Among the therapeutic agents used to target TfR1, antibodies stand out due to their remarkable specificity and affinity. Clinical trials are being conducted to evaluate the safety and efficacy of agents targeting TfR1 in cancer patients with promising results. These observations suggest that therapies targeting TfR1 as direct therapeutics or delivery conduits remain an attractive alternative for the treatment of cancers that overexpress the receptor.
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Affiliation(s)
- Rosendo Luria-Pérez
- Unidad de Investigación en Enfermedades Oncológicas, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Gustavo Helguera
- Instituto de Biología y Medicina Experimental, Ciudad Autónoma de Buenos Aires, Argentina.
| | - José A Rodríguez
- Department of Chemistry and Biochemistry, UCLA-DOE Institute for Genomics and Proteomics, University of California, Los Angeles, California, USA.
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Islas G, Rodríguez JA, Páez-Hernández ME, Corona-Avendaño S, Rojas-Hernández A, Barrado E. Dispersive solid-phase extraction based on butylamide silica for the determination of sulfamethoxazole in milk samples by capillary electrophoresis. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1230551] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Gabriela Islas
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, Mexico
| | - José A. Rodríguez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, Mexico
| | - M. Elena Páez-Hernández
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Pachuca, Hidalgo, Mexico
| | - Silvia Corona-Avendaño
- Departamento de Materiales, Área Ingeniería de Materiales, Universidad Autónoma Metropolitana-Azcapotzalco, Ciudad de Mexico, Mexico
| | - Alberto Rojas-Hernández
- Departamento de Química, Área de Química Analítica, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de Mexico, Mexico
| | - Enrique Barrado
- Departamento de Química Analítica, Facultad de Ciencias, Universidad de Valladolid, Valladolid, Spain
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Pérez-Silva I, Ramírez-Silva MT, Galán-Vidal CA, Álvarez-Romero GA, Rodríguez JA, Páez-Hernández ME. Evaluation of the use of solvent impregnated resins in the analysis of salbutamol in human urine followed by capillary electrophoresis. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.05.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Guzmán HJ, Xu W, Stacchiola D, Vitale G, Scott CE, Rodríguez JA, Pereira-Almao P. Formation of β-Mo2C below 600 °C using MoO2 nanoparticles as precursor. J Catal 2015. [DOI: 10.1016/j.jcat.2015.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Posada-Pérez S, Viñes F, Rodríguez JA, Illas F. Structure and electronic properties of Cu nanoclusters supported on Mo2C(001) and MoC(001) surfaces. J Chem Phys 2015; 143:114704. [DOI: 10.1063/1.4930538] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Bldg. 555, Upton, New York 11973, USA
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
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Lorente L, Martín MM, Ramos L, Cáceres JJ, Solé-Violán J, Argueso M, Jiménez A, Borreguero-León JM, Orbe J, Rodríguez JA, Páramo JA. Serum tissue inhibitor of matrix metalloproteinase-1 levels are associated with mortality in patients with malignant middle cerebral artery infarction. BMC Neurol 2015; 15:111. [PMID: 26162891 PMCID: PMC4499187 DOI: 10.1186/s12883-015-0364-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 02/16/2015] [Accepted: 06/28/2015] [Indexed: 01/20/2023] Open
Abstract
Background In the last years, circulating matrix metalloproteinases (MMP)-9 levels have been associated with functional outcome in ischemic stroke patients. However the prognostic value of circulating levels of tissue inhibitor of matrix metalloproteinases (TIMP)-1 and MMP-10 in functional outcome of ischemic stroke patients has been scarcely studied. In addition, to our knowledge, serum MMP-9, MMP-10 and TIMP-1 levels in patients with malignant middle cerebral artery infarction (MMCAI) for mortality prediction have not been studied, and these were the objectives of this study. Methods This was a multicenter, observational and prospective study carried out in six Spanish Intensive Care Units. We included patients with severe MMCAI defined as Glasgow Coma Scale (GCS) lower than 9. We measured circulating levels of MMP-9, MMP-10, TIMP-1, in 50 patients with severe MMCAI at diagnosis and in 50 healthy subjects. Endpoint was 30-day mortality. Results Patients with severe MMCAI showed higher serum levels of MMP-9 (p = 0.001), MMP-10 (p < 0.001), and TIMP-1 (p = 0.02) than healthy subjects. Non-surviving MMCAI patients (n = 26) compared to survivor ones (n = 24) showed higher circulating levels of TIMP-1 (p < 0.001), MMP-10 (p = 0.02) and PAI-1(p = 0.02), and lower MMP-9 levels (p = 0.04). Multiple binomial logistic regression analysis showed that serum TIMP-1 levels > 239 ng/mL are associated with 30-day mortality (OR = 5.82; 95 % CI = 1.37-24.73; P = 0.02) controlling for GCS and age. The area under the curve for TIMP-1 as predictor of 30-day mortality was 0.81 (95 % CI = 0.67-0.91; P < 0.001). We found an association between circulating levels of TIMP-1 and MMP-10 (rho = 0.45; P = 0.001), plasminogen activator inhibitor (PAI)-1 (rho = 0.53; P < 0.001), and tumor necrosis factor (TNF)-alpha (rho = 0.70; P < 0.001). Conclusions The most relevant and new findings of our study, were that serum TIMP-1 levels in MMCAI patients were associated with mortality, and could be used as a prognostic biomarker of mortality in MMCAI patients.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain.
| | - María M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife, 38010, Spain.
| | - Luis Ramos
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma, 38713, Spain.
| | - Juan J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria, 35016, Spain.
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria, 35010, Spain.
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez n°17-19, Valencia, 46004, Spain.
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain.
| | - Juan M Borreguero-León
- Laboratory Deparment, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320, Santa Cruz de Tenerife, Spain.
| | - Josune Orbe
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona, 31008, Spain.
| | - José A Rodríguez
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona, 31008, Spain.
| | - José A Páramo
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Avda Pío XII n°55, Pamplona, 31008, Spain.
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Arregi I, Falces J, Olazabal-Herrero A, Alonso-Mariño M, Taneva SG, Rodríguez JA, Urbaneja MA, Bañuelos S. Leukemia-Associated Mutations in Nucleophosmin Alter Recognition by CRM1: Molecular Basis of Aberrant Transport. PLoS One 2015; 10:e0130610. [PMID: 26091065 PMCID: PMC4474691 DOI: 10.1371/journal.pone.0130610] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 05/21/2015] [Indexed: 12/31/2022] Open
Abstract
Nucleophosmin (NPM) is a nucleocytoplasmic shuttling protein, normally enriched in nucleoli, that performs several activities related to cell growth. NPM mutations are characteristic of a subtype of acute myeloid leukemia (AML), where mutant NPM seems to play an oncogenic role. AML-associated NPM mutants exhibit altered subcellular traffic, being aberrantly located in the cytoplasm of leukoblasts. Exacerbated export of AML variants of NPM is mediated by the nuclear export receptor CRM1, and due, in part, to a mutationally acquired novel nuclear export signal (NES). To gain insight on the molecular basis of NPM transport in physiological and pathological conditions, we have evaluated the export efficiency of NPM in cells, and present new data indicating that, in normal conditions, wild type NPM is weakly exported by CRM1. On the other hand, we have found that AML-associated NPM mutants efficiently form complexes with CRM1HA (a mutant CRM1 with higher affinity for NESs), and we have quantitatively analyzed CRM1HA interaction with the NES motifs of these mutants, using fluorescence anisotropy and isothermal titration calorimetry. We have observed that the affinity of CRM1HA for these NESs is similar, which may help to explain the transport properties of the mutants. We also describe NPM recognition by the import machinery. Our combined cellular and biophysical studies shed further light on the determinants of NPM traffic, and how it is dramatically altered by AML-related mutations.
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Affiliation(s)
- Igor Arregi
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
| | - Jorge Falces
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
| | - Anne Olazabal-Herrero
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, Leioa, Spain
| | - Marián Alonso-Mariño
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
| | - Stefka G. Taneva
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
| | - José A. Rodríguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, Leioa, Spain
| | - María A. Urbaneja
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
| | - Sonia Bañuelos
- Unidad de Biofísica (CSIC, UPV/EHU) and Department of Biochemistry and Molecular Biology, University of the Basque Country, Leioa, Spain
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Orbe J, Rodríguez JA, Sánchez-Arias JA, Salicio A, Belzunce M, Ugarte A, Chang HCY, Rabal O, Oyarzabal J, Páramo JA. Discovery and safety profiling of a potent preclinical candidate, (4-[4-[[(3R)-3-(hydroxycarbamoyl)-8-azaspiro[4.5]decan-3-yl]sulfonyl]phenoxy]-N-methylbenzamide) (CM-352), for the prevention and treatment of hemorrhage. J Med Chem 2015; 58:2941-57. [PMID: 25686022 DOI: 10.1021/jm501939z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Discovery of potent and safe therapeutics that improve upon currently available antifibrinolytics, e.g., tranexamic acid (TXA, 1) and aprotinin, has been challenging. Matrix metalloproteinases (MMPs) participate in thrombus dissolution. Then we designed a novel series of optimized MMP inhibitors that went through phenotypic screening consisting of thromboelastometry and mouse tail bleeding. Our optimized lead compound, CM-352 (2), inhibited fibrinolysis in human whole blood functional assays and was more effective than the current standard of care, 1, in the tail-bleeding model using a 30 000 times lower dose. Moreover, 2 reduced blood loss during liver hepatectomy, while 1 and aprotinin had no effect. Molecule 2 displayed optimal pharmacokinetic and safety profiles with no evidence of thrombosis or coagulation impairment. This novel mechanism of action, targeting MMP, defines a new class of antihemorrhagic agents without interfering with normal hemostatic function. Furthermore, 2 represents a preclinical candidate for the acute treatment of bleeding.
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Affiliation(s)
- Josune Orbe
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - José A Rodríguez
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Juan A Sánchez-Arias
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Agustina Salicio
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Miriam Belzunce
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Ana Ugarte
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Haisul C Y Chang
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Obdulia Rabal
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - Julen Oyarzabal
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
| | - José A Páramo
- †Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, §Experimental Hepathology, Center for Applied Medical Research (CIMA), and ∥Hematology Service, Clínica Universidad de Navarra, University of Navarra, Pamplona, 31008, Spain
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Orbe J, Sánchez-Arias JA, Rabal O, Rodríguez JA, Salicio A, Ugarte A, Belzunce M, Xu M, Wu W, Tan H, Ma H, Páramo JA, Oyarzabal J. Design, synthesis, and biological evaluation of novel matrix metalloproteinase inhibitors as potent antihemorrhagic agents: from hit identification to an optimized lead. J Med Chem 2015; 58:2465-88. [PMID: 25686153 DOI: 10.1021/jm501940y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Growing evidence suggests that matrix metalloproteinases (MMP) are involved in thrombus dissolution; then, considering that new therapeutic strategies are required for controlling hemorrhage, we hypothesized that MMP inhibition may reduce bleeding by delaying fibrinolysis. Thus, we designed and synthesized a novel series of MMP inhibitors to identify potential candidates for acute treatment of bleeding. Structure-based and knowledge-based strategies were utilized to design this novel chemical series, α-spiropiperidine hydroxamates, of potent and soluble (>75 μg/mL) pan-MMP inhibitors. The initial hit, 12, was progressed to an optimal lead 19d. Racemic 19d showed a remarkable in vitro phenotypic response and outstanding in vivo efficacy; in fact, the mouse bleeding time at 1 mg/kg was 0.85 min compared to 29.28 min using saline. In addition, 19d displayed an optimal ADME and safety profile (e.g., no thrombus formation). Its corresponding enantiomers were separated, leading to the preclinical candidate 5 (described in Drug Annotations series, J. Med. Chem. 2015, ).
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Affiliation(s)
- Josune Orbe
- Atherosclerosis Research Laboratory, ‡Small Molecule Discovery Platform, Molecular Therapeutics Program, Center for Applied Medical Research (CIMA), University of Navarra , Avenida Pio XII 55, E-31008 Pamplona, Spain
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Carrasco J, López‐Durán D, Liu Z, Duchoň T, Evans J, Senanayake SD, Crumlin EJ, Matolín V, Rodríguez JA, Ganduglia‐Pirovano MV. In Situ and Theoretical Studies for the Dissociation of Water on an Active Ni/CeO
2
Catalyst: Importance of Strong Metal–Support Interactions for the Cleavage of O–H Bonds. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410697] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Javier Carrasco
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid (Spain)
- CIC Energigune, Albert Einstein 48, 01510 Miñano, Álava (Spain)
| | - David López‐Durán
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid (Spain)
- CIC Energigune, Albert Einstein 48, 01510 Miñano, Álava (Spain)
- Present address: Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid (Spain)
| | - Zongyuan Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
- Dept. of Chem., SUNY, Stony Brook, NY 11749 (USA)
| | - Tomáš Duchoň
- Faculty of Mathematics and Physics, Charles University, V Holešovičách 2, Praha 8 (Czech Republic)
| | - Jaime Evans
- Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020A (Venezuela)
| | | | - Ethan J. Crumlin
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (USA)
| | - Vladimir Matolín
- Faculty of Mathematics and Physics, Charles University, V Holešovičách 2, Praha 8 (Czech Republic)
| | - José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
- Dept. of Chem., SUNY, Stony Brook, NY 11749 (USA)
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Carrasco J, López-Durán D, Liu Z, Duchoň T, Evans J, Senanayake SD, Crumlin EJ, Matolín V, Rodríguez JA, Ganduglia-Pirovano MV. In situ and theoretical studies for the dissociation of water on an active Ni/CeO2 catalyst: importance of strong metal-support interactions for the cleavage of O-H bonds. Angew Chem Int Ed Engl 2015; 54:3917-21. [PMID: 25651288 DOI: 10.1002/anie.201410697] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/12/2014] [Indexed: 11/10/2022]
Abstract
Water dissociation is crucial in many catalytic reactions on oxide-supported transition-metal catalysts. Supported by experimental and density-functional theory results, the effect of the support on OH bond cleavage activity is elucidated for nickel/ceria systems. Ambient-pressure O 1s photoemission spectra at low Ni loadings on CeO2 (111) reveal a substantially larger amount of OH groups as compared to the bare support. Computed activation energy barriers for water dissociation show an enhanced reactivity of Ni adatoms on CeO2 (111) compared with pyramidal Ni4 particles with one Ni atom not in contact with the support, and extended Ni(111) surfaces. At the origin of this support effect is the ability of ceria to stabilize oxidized Ni(2+) species by accommodating electrons in localized f-states. The fast dissociation of water on Ni/CeO2 has a dramatic effect on the activity and stability of this system as a catalyst for the water-gas shift and ethanol steam reforming reactions.
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Affiliation(s)
- Javier Carrasco
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid (Spain); CIC Energigune, Albert Einstein 48, 01510 Miñano, Álava (Spain)
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Guarddon M, Miranda JM, Rodríguez JA, Vázquez BI, Cepeda A, Franco CM. Quantitative detection of tetracycline-resistant microorganisms in conventional and organic beef, pork and chicken meat. CyTA - Journal of Food 2014. [DOI: 10.1080/19476337.2014.892030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lorente L, Martín MM, López P, Ramos L, Blanquer J, Cáceres JJ, Solé-Violán J, Solera J, Cabrera J, Argueso M, Ortiz R, Mora ML, Lubillo S, Jiménez A, Borreguero-León JM, González A, Orbe J, Rodríguez JA, Páramo JA. Association between serum tissue inhibitor of matrix metalloproteinase-1 levels and mortality in patients with severe brain trauma injury. PLoS One 2014; 9:e94370. [PMID: 24728097 PMCID: PMC3984169 DOI: 10.1371/journal.pone.0094370] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 03/15/2014] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE Matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) play a role in neuroinflammation after brain trauma injury (TBI). Previous studies with small sample size have reported higher circulating MMP-2 and MMP-9 levels in patients with TBI, but no association between those levels and mortality. Thus, the aim of this study was to determine whether serum TIMP-1 and MMP-9 levels are associated with mortality in patients with severe TBI. METHODS This was a multicenter, observational and prospective study carried out in six Spanish Intensive Care Units. Patients with severe TBI defined as Glasgow Coma Scale (GCS) lower than 9 were included, while those with Injury Severity Score (ISS) in non-cranial aspects higher than 9 were excluded. Serum levels of TIMP-1, MMP-9 and tumor necrosis factor (TNF)-alpha, and plasma levels of tissue factor (TF) and plasminogen activator inhibitor (PAI)-1 plasma were measured in 100 patients with severe TBI at admission. Endpoint was 30-day mortality. RESULTS Non-surviving TBI patients (n = 27) showed higher serum TIMP-1 levels than survivor ones (n = 73). We did not find differences in MMP-9 serum levels. Logistic regression analysis showed that serum TIMP-1 levels were associated 30-day mortality (OR = 1.01; 95% CI = 1.001-1.013; P = 0.03). Survival analysis showed that patients with serum TIMP-1 higher than 220 ng/mL presented increased 30-day mortality than patients with lower levels (Chi-square = 5.50; P = 0.02). The area under the curve (AUC) for TIMP-1 as predictor of 30-day mortality was 0.73 (95% CI = 0.624-0.844; P<0.001). An association between TIMP-1 levels and APACHE-II score, TNF- alpha and TF was found. CONCLUSIONS The most relevant and new findings of our study, the largest series reporting data on TIMP-1 and MMP-9 levels in patients with severe TBI, were that serum TIMP-1 levels were associated with TBI mortality and could be used as a prognostic biomarker of mortality in TBI patients.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
- * E-mail:
| | - María M. Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Patricia López
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Luis Ramos
- Intensive Care Unit, Hospital General La Palma, La Palma, Spain
| | - José Blanquer
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Fundación INCLIVA, Valencia, Spain
| | - Juan J. Cáceres
- Intensive Care Unit, Hospital Insular, Las Palmas de Gran Canaria, Spain
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - Jorge Solera
- Deparment of Anesthesiology and Reanimation, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Judith Cabrera
- Intensive Care Unit, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Mónica Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Fundación INCLIVA, Valencia, Spain
| | - Raquel Ortiz
- Intensive Care Unit, Hospital General La Palma, La Palma, Spain
| | - María L. Mora
- Intensive Care Unit, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Santiago Lubillo
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | | | - Agustín González
- Laboratory Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain
| | - Josune Orbe
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Pamplona, Spain
| | - José A. Rodríguez
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Pamplona, Spain
| | - José A. Páramo
- Atherosclerosis Research Laboratory, CIMA-University of Navarra, Pamplona, Spain
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Lorente L, Martín MM, Solé-Violán J, Blanquer J, Labarta L, Díaz C, Borreguero-León JM, Orbe J, Rodríguez JA, Jiménez A, Páramo JA. Association of sepsis-related mortality with early increase of TIMP-1/MMP-9 ratio. PLoS One 2014; 9:e94318. [PMID: 24727739 PMCID: PMC3984125 DOI: 10.1371/journal.pone.0094318] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 03/14/2014] [Indexed: 01/20/2023] Open
Abstract
Objective Higher circulating levels of tissue inhibitor of matrix metalloproteinases (TIMP)-1 at the time of severe sepsis diagnosis have been reported in nonsurviving than in surviving patients. However, the following questions remain unanswered: 1) Does TIMP-1/MMP-9 ratio differ throughout the first week of intensive care between surviving and non-surviving patients? 2) Is there an association between TIMP-1/MMP-9 ratio and sepsis severity and mortality during such period? 3) Could TIMP-1/MMP-9 ratio during the first week be used as an early biomarker of sepsis outcome? 4) Is there an association between TIMP-1/MMP-9 ratio and coagulation state and circulating cytokine levels during the first week of intensive care in these patients? The present study sought to answer these questions. Methods Multicenter, observational and prospective study carried out in six Spanish Intensive Care Units (ICUs) of 295 patients with severe sepsis. Were measured circulating levels of TIMP-1, MMP-9, tumour necrosis factor (TNF)-alpha, interleukin (IL)-10 and plasminogen activator inhibitor (PAI)-1 at day 1, 4 and 8. End-point was 30-day mortality. Results We found higher TIMP-1/MMP-9 ratio during the first week in non-surviving (n = 98) than in surviving patients (n = 197) (p<0.01). Logistic regression analyses showed that TIMP-1/MMP-9 ratio at days 1, 4 and 8 was associated with mortality. Receiver operating characteristic (ROC) curves showed that TIMP-1/MMP-9 ratio at days 1, 4 and 8 could predict mortality. There was an association between TIMP-1/MMP-9 ratio and TNF-alpha, IL-10, PAI-1 and lactic acid levels, SOFA score and platelet count at days 1, 4 and 8. Conclusions The novel findings of our study were that non-surviving septic patients showed persistently higher TIMP-1/MMP-9 ratio than survivors ones during the first week, which was associated with severity, coagulation state, circulating cytokine levels and mortality; thus representing a new biomarker of sepsis outcome.
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Affiliation(s)
- Leonardo Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
- * E-mail:
| | - María M. Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Jordi Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - José Blanquer
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Lorenzo Labarta
- Intensive Care Unit, Hospital San Jorge de Huesca, Huesca, Spain
| | - César Díaz
- Intensive Care Unit, Hospital Insular, Las Palmas de Gran Canaria, Spain
| | - Juan M. Borreguero-León
- Laboratory Department, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - Josune Orbe
- Atherosclerosis Research Laboratory, CIMA, University of Navarra, Pamplona, Spain
| | - José A. Rodríguez
- Atherosclerosis Research Laboratory, CIMA, University of Navarra, Pamplona, Spain
| | - Alejandro Jiménez
- Research Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - José A. Páramo
- Atherosclerosis Research Laboratory, CIMA, University of Navarra, Pamplona, Spain
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Pizarro J, Vergara PM, Morales JL, Rodríguez JA, Vila I. Influence of land use and climate on the load of suspended solids in catchments of Andean rivers. Environ Monit Assess 2014; 186:835-843. [PMID: 24046240 DOI: 10.1007/s10661-013-3420-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 09/05/2013] [Indexed: 06/02/2023]
Abstract
Understanding the interaction between anthropogenic land use and the rainfall pattern can be crucial to predict changes in total suspended solids (TSS) in streams and rivers. We assessed the effects of land use and annual rainfall on the TSS load of 19 southern Chilean catchments. The results indicated that the concentration of TSS increased in catchments with a rainy regime and greater annual precipitation. TSS load also increased as the surface of open areas increased at the catchment scale and decreased with increasing cover of glaciers and perennial snow. However, we did not find support for models with interaction terms between climate and land use. Results suggest that a regional decrease in annual rainfall accompanied by an increase in the altitude of the zero isotherms, as predicted by climate models, should have multiple effects on TSS. In particular, increased TSS load can be expected from a contraction of glaciers and perennial snow areas as well as the intensification of new crops and urban expansion.
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Affiliation(s)
- J Pizarro
- Departamento de Ingeniería Geográfica, Facultad de Ingeniería, Universidad de Santiago de Chile (Usach), Av. Lib. B. O'Higgins no. 3363, Santiago, Chile,
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Rodríguez JA, Sobrino T, Orbe J, Purroy A, Martínez-Vila E, Castillo J, Páramo JA. proMetalloproteinase-10 is associated with brain damage and clinical outcome in acute ischemic stroke. J Thromb Haemost 2013; 11:1464-73. [PMID: 23742289 DOI: 10.1111/jth.12312] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Indexed: 01/17/2023]
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) mediate tissue injury during stroke but also neurovascular remodeling and we have shown that MMP-10 is involved in atherothrombosis. OBJECTIVE The purpose of this study was to examine the relationship between proMMP-10 and clinical outcome, assessing inflammatory and proteolytic markers, in patients with acute ischemic stroke. METHODS We prospectively studied 76 patients with ischemic stroke treated with tPA within the first 3 h from symptom onset, compared with 202 non-tPA-treated ischemic stroke patients and 83 asymptomatic subjects. Stroke severity was assessed with the National Institutes of Health Stroke Scale (NIHSS). Hemorrhagic transformation (HT) and severe brain edema were diagnosed by cranial CT. Good functional outcome was defined as a modified Rankin scale score ≤ 2 at 90 days. Serum levels of MMP-9, proMMP-10, TIMP-1, tumor necrosis factor-α (TNFα), interleukin-6 and cellular fibronectin were measured at admission. The effect of TNFα on endothelial proMMP-10 was assessed in vitro. RESULTS Serum proMMP-10 concentration in ischemic stroke patients, non-treated or treated with t-PA, which was higher than age-matched healthy subjects (P < 0.0001), was independently associated with higher infarct volume, severe brain edema, neurological deterioration and poor functional outcome at 3 months (all P < 0.05), but not with HT. proMMP-10 levels were also independently and positively associated with circulating levels of TNFα (P < 0.0001), which induced its endothelial expression in vitro, both mRNA and protein. MMP-9, however, was only associated with HT and severe edema (all P < 0.05). CONCLUSIONS Increased serum proMMP-10 after acute ischemic stroke, associated with TNFα, is a new marker of brain damage and poor outcome.
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Affiliation(s)
- J A Rodríguez
- Laboratory of Atherosclerosis, Division of Cardiovascular Sciences, CIMA-University of Navarra, Pamplona, Spain.
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Guzmán HJ, Xu W, Stacchiola D, Vitale G, Scott CE, Rodríguez JA, Pereira-Almao P. In situ time-resolved X-ray diffraction study of the synthesis of Mo2C with different carburization agents. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0516] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Toluene, n-heptane, and methane were studied as carbon sources during the synthesis of Mo2C. Ammonium heptamolybdate ((NH4)6Mo7O24·4H2O), molybdenum dioxide (MoO2), orthorhombic molybdenum trioxide (α-MoO3), and a low crystallinity molybdenum oxide (MoOx) were employed as metal precursors and their conversion into the carbide phase was followed by time-resolved X-ray diffraction from synchrotron radiation. Thermal treatment was carried out from 298 K up to 1023 K and the evolution of gases analyzed by mass spectrometry. The resulting carbidic phase obtained using methane/H2 was hexagonal β-Mo2C, while in contrast, cubic molybdenum carbide (α-MoC1–x) was obtained when toluene/H2 or n-heptane/H2 were employed, which occurred independently of the original metal precursor. Molybdenum carbide was first detected, on average, at about 923 K. Mass spectrometry results show the formation of CO when methane was used as a carbon source, while methyl radicals and benzene and mainly methyl radicals were detected when toluene and n-heptane were employed, respectively.
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Affiliation(s)
- Héctor J. Guzmán
- Chemistry Department, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Wenqian Xu
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Dario Stacchiola
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Gerardo Vitale
- Chemistry Department, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Carlos E. Scott
- Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Pedro Pereira-Almao
- Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
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Ding H, Helguera G, Rodríguez JA, Markman J, Luria-Pérez R, Gangalum P, Portilla-Arias J, Inoue S, Daniels-Wells TR, Black K, Holler E, Penichet ML, Ljubimova JY. Polymalic acid nanobioconjugate for simultaneous immunostimulation and inhibition of tumor growth in HER2/neu-positive breast cancer. J Control Release 2013; 171:322-9. [PMID: 23770212 DOI: 10.1016/j.jconrel.2013.06.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/02/2013] [Accepted: 06/03/2013] [Indexed: 12/17/2022]
Abstract
Breast cancer remains the second leading cause of cancer death among women in the United States. Breast cancer prognosis is particularly poor in case of tumors overexpressing the oncoprotein HER2/neu. A new nanobioconjugate of the Polycefin(TM) family of anti-cancer drugs based on biodegradable and non-toxic polymalic acid (PMLA) was engineered for a multi-pronged attack on HER2/neu-positive breast cancer cells. An antibody-cytokine fusion protein consisting of the immunostimulatory cytokine interleukin-2 (IL-2) genetically fused to an antibody specific for human HER2/neu [anti-HER2/neu IgG3-(IL-2)] was covalently attached to the PMLA backbone to target HER2/neu expressing tumors and ensure the delivery of IL-2 to the tumor microenvironment. Antisense oligonucleotides (AON) were conjugated to the nanodrug to inhibit the expression of vascular tumor protein laminin-411 in order to block tumor angiogenesis. It is shown that the nanobioconjugate was capable of specifically binding human HER2/neu and retained the biological activity of IL-2. We also showed the uptake of the nanobioconjugate into HER2/neu-positive breast cancer cells and enhanced tumor targeting in vivo. The nanobioconjugate exhibited marked anti-tumor activity manifested by significantly longer animal survival and significantly increased anti-HER2/neu immune response in immunocompetent mice bearing D2F2/E2 murine mammary tumors that express human HER2/neu. The combination of laminin-411 AON and antibody-cytokine fusion protein on a single polymeric platform results in a new nanobioconjugate that can act against cancer cells through inhibition of tumor growth and angiogenesis and the orchestration of an immune response against the tumor. The present Polycefin(TM) variant may be a promising agent for treating HER2/neu expressing tumors and demonstrates the versatility of the Polycefin(TM) nanobioconjugate platform.
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Affiliation(s)
- Hui Ding
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, USA
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Lorente L, Martín M, Plasencia F, Solé-Violán J, Blanquer J, Labarta L, Díaz C, Borreguero-León JM, Jiménez A, Páramo JA, Orbe J, Rodríguez JA, Salido E. The 372 T/C genetic polymorphism of TIMP-1 is associated with serum levels of TIMP-1 and survival in patients with severe sepsis. Crit Care 2013; 17:R94. [PMID: 23706069 PMCID: PMC3706773 DOI: 10.1186/cc12739] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 05/25/2013] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Previous studies have found higher circulating levels of tissue inhibitor of matrix metalloproteinase (TIMP)-1 in nonsurviving septic patients than in surviving septic patients, and an association between the 372 T/C genetic polymorphism of TIMP-1 and the risk of developing certain diseases. However, the relationship between genetic polymorphisms of TIMP-1, circulating TIMP-1 levels and survival in patients with severe sepsis has not been examined, and this was the objective of the study. METHODS This multicentre, prospective, observational study was carried out in six Spanish ICUs. We determined the 372 T/C genetic polymorphism of TIMP-1 (rs4898), serum levels of TIMP-1, matrix metalloproteinase (MMP)-9, MMP-10, TNFα, IL-10 and plasma plasminogen activator inhibitor-1 (PAI-1). Survival at 30 days from ICU admission was the endpoint assessed. The association between continuous variables was carried out using Spearman's rank correlation coefficient or Spearman's rho coefficient. Multivariate logistic regression analysis was applied to determine the association between the 372 T/C genetic polymorphism and survival 30 days from ICU admission. RESULTS Of 275 patients with severe sepsis, 80 had genotype CC, 55 had genotype CT and 140 had genotype TT of the 372 T/C genetic polymorphism of TIMP-1. Patients with the T allele showed higher serum levels of TIMP-1 than patients without the T allele (P=0.004). Multiple logistic regression analysis showed that the T allele was associated with higher mortality at 30 days (odds ratio=2.08; 95% confidence interval=1.06 to 4.09; P=0.03). Survival analysis showed that patients with the T allele presented lower 30-day survival than patients without the T allele (χ2=5.77; P=0.016). We found an association between TIMP-1 levels and levels of MMP-9 (ρ=-0.19; P=0.002), MMP-10 (ρ=0.55; P<0.001), TNFα (ρ=0.56; P<0.001), IL-10 (ρ=0.48; P<0.001) and PAI-1 (ρ=0.49; P<0.001). CONCLUSION The novel findings of our study are that septic patients with the T allele in the 372 T/C genetic polymorphism of TIMP-1 showed higher serum TIMP-1 levels and lower survival rate. The determination of the 372 T/C genetic polymorphism of TIMP-1 thus has prognostic implications and could help in the selection of patients who may benefit from modulation of the MMP/TIMP balance.
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