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Rodríguez AA, García M, Martínez O, López-Paz JF, García I, Pérez-Nuñez P, Amayra I. Predictors of overload in parents of children with neuromuscular diseases. Front Neurol 2024; 15:1349501. [PMID: 38585358 PMCID: PMC10996859 DOI: 10.3389/fneur.2024.1349501] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/13/2024] [Indexed: 04/09/2024] Open
Abstract
Introduction Parents of children with neuromuscular diseases experience multiple difficulties in their daily lives that affect their physical and psychological health. The risk factors for these health issues have not been sufficiently investigated. Therefore, the aim of this study was to analyze the potential predictors of overload in these parents, including QoL, somatic symptomatology, life satisfaction, psychological adjustment and certain sociodemographic variables. Methods A cross-sectional research study was conducted among parents who are caregivers for children with NMD in Spain. A convenience sample of 110 parents who were contacted by associations and hospitals was used. Variables were evaluated using the sociodemographic questionnaire, CarerQol-7D, PHQ-15, Barthel Index, Psychological Adaptation Scale, Zarit Overload Scale and Satisfaction with Life Scale. Results One of the most relevant findings of the present study is the identification of 3 overload groups (mild to moderate, moderate to severe, and severe overload) based on life satisfaction and somatic symptom scores within the predictive model of the discriminate analysis. Wilk's lambda of the discriminant function was 0.568, χ2 (2, n = 55) = 8.815, p < 0.001. Discussion This study presents a model that reveals the influence of unemployment, having a child with a severe level of dependency, the presence of somatic symptomatology and life satisfaction on caregiver overload. Likewise, the caregiver's self-esteem could be a protective factor against overload.
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Affiliation(s)
- A. A. Rodríguez
- Neuro-e-Motion Research Team, Faculty of Health Sciences, Department of Psychology, University of Deusto, Bilbao, Spain
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Valera PS, Plou J, García I, Astobiza I, Viera C, M. Aransay A, Martin JE, Sasselli IR, Carracedo A, Liz-Marzán LM. SERS analysis of cancer cell-secreted purines reveals a unique paracrine crosstalk in MTAP-deficient tumors. Proc Natl Acad Sci U S A 2023; 120:e2311674120. [PMID: 38109528 PMCID: PMC10756296 DOI: 10.1073/pnas.2311674120] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/09/2023] [Indexed: 12/20/2023] Open
Abstract
The tumor microenvironment (TME) is a dynamic pseudoorgan that shapes the development and progression of cancers. It is a complex ecosystem shaped by interactions between tumor and stromal cells. Although the traditional focus has been on the paracrine communication mediated by protein messengers, recent attention has turned to the metabolic secretome in tumors. Metabolic enzymes, together with exchanged substrates and products, have emerged as potential biomarkers and therapeutic targets. However, traditional techniques for profiling secreted metabolites in complex cellular contexts are limited. Surface-enhanced Raman scattering (SERS) has emerged as a promising alternative due to its nontargeted nature and simplicity of operation. Although SERS has demonstrated its potential for detecting metabolites in biological settings, its application in deciphering metabolic interactions within multicellular systems like the TME remains underexplored. In this study, we introduce a SERS-based strategy to investigate the secreted purine metabolites of tumor cells lacking methylthioadenosine phosphorylase (MTAP), a common genetic event associated with poor prognosis in various cancers. Our SERS analysis reveals that MTAP-deficient cancer cells selectively produce methylthioadenosine (MTA), which is taken up and metabolized by fibroblasts. Fibroblasts exposed to MTA exhibit: i) molecular reprogramming compatible with cancer aggressiveness, ii) a significant production of purine derivatives that could be readily recycled by cancer cells, and iii) the capacity to secrete purine derivatives that induce macrophage polarization. Our study supports the potential of SERS for cancer metabolism research and reveals an unprecedented paracrine crosstalk that explains TME reprogramming in MTAP-deleted cancers.
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Affiliation(s)
- Pablo S. Valera
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain
- Centro de Investigación Biomédica En Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Donostia-San Sebastián20014, Spain
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
- Departamento de Química Aplicada, Universidad del País Vasco/Euskal Herriko Universitatea (UPV/EHU), Donostia-San Sebastián20018, Spain
| | - Javier Plou
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain
- Centro de Investigación Biomédica En Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Donostia-San Sebastián20014, Spain
- Center for Cooperative Research in Nanoscience (CIC nanoGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20018, Spain
| | - Isabel García
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain
- Centro de Investigación Biomédica En Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Donostia-San Sebastián20014, Spain
| | - Ianire Astobiza
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
- Centro de Investigación Biomédica En Red de Cáncer (CIBERONC),Madrid28029, Spain
| | - Cristina Viera
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
| | - Ana M. Aransay
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
- Biomedical Research Networking Center in hepatic diseases, Derio48160, Spain
| | - José E. Martin
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
| | - Ivan R. Sasselli
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain
- Centro de Fisica de Materiales, Consejo Superior de Investigaciones Cientificas-Universidad del País Vasco/Euskal Herriko Universitatea (CSIC-UPV)/EHU), Donostiarra-San Sebastián20018, Spain
| | - Arkaitz Carracedo
- Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio48160, Spain
- Centro de Investigación Biomédica En Red de Cáncer (CIBERONC),Madrid28029, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao48009, Spain
- Translational Prostate Cancer Research Lab, Center for Cooperative Research in Biosciences-Basurto, Biocruces Bizkaia Health Research Institute, Derio48160, Spain
- Departamento de Bioquímica y Biología Molecular, Universidad del País Vasco/Euskal Herriko Universitatea (UPV/EHU), Leioa48940, Spain
| | - Luis M. Liz-Marzán
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián20014, Spain
- Centro de Investigación Biomédica En Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Donostia-San Sebastián20014, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao48009, Spain
- Cinbio, Universidade de Vigo, Vigo36310, Spain
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Fernandez-Carro E, Salomon-Cambero R, Armero L, Castro-Abril HA, Ayensa-Jiménez J, Martínez MA, Ochoa I, Alcaine C, García I, Ciriza J. Nanoparticles Stokes radius assessment through permeability coefficient determination within a new stratified epithelium on-chip model. Artif Cells Nanomed Biotechnol 2023; 51:466-475. [PMID: 37665604 DOI: 10.1080/21691401.2023.2253534] [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: 03/16/2023] [Revised: 05/31/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
Tissue barrier permeability plays a crucial role in determining the selective transport of substances across epithelial tissues, including drugs, cosmetic substances, and chemicals. The ability of these substances to cross through tissue barriers affects their absorption into the bloodstream and ultimately their effectiveness. Therefore, the determination of their permeability on these type of tissue barriers represents a useful tool for pharmaceutical and cosmetic industries as well as for toxicological studies.In this regard, microfluidic devices and organ-on-chip technologies are becoming more important to generate reliable data. We have designed and performed an alternative new stratified epithelia-on-chip model that allows to correlate the Stokes radius and the diffusion of molecules and/or nanoformulations through the in vitro generated barrier and establish a system suitable for the analysis of diffusion through stratified epithelium. Thus, extrapolating from experimental data we can predict the Stokes radius for unknown fluorescent labelled particles within a molecular size range, such as gold nanoparticles.
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Affiliation(s)
- E Fernandez-Carro
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
| | - R Salomon-Cambero
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
| | - L Armero
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain
| | - H A Castro-Abril
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
| | - J Ayensa-Jiménez
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain
| | - Miguel A Martínez
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain
| | - I Ochoa
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain
| | - C Alcaine
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
| | - I García
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Spain
| | - J Ciriza
- Tissue Microenvironment (TME) Lab. Aragón Institute of Engineering Research (I3A), University of Zaragoza, Zaragoza, Spain
- Institute for Health Research Aragón (IIS Aragón), Zaragoza, Spain
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Plou J, Valera PS, García I, Vila-Liarte D, Renero-Lecuna C, Ruiz-Cabello J, Carracedo A, Liz-Marzán LM. Machine Learning-Assisted High-Throughput SERS Classification of Cell Secretomes. Small 2023; 19:e2207658. [PMID: 37046181 DOI: 10.1002/smll.202207658] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/25/2023] [Indexed: 06/19/2023]
Abstract
During the response to different stress conditions, damaged cells react in multiple ways, including the release of a diverse cocktail of metabolites. Moreover, secretomes from dying cells can contribute to the effectiveness of anticancer therapies and can be exploited as predictive biomarkers. The nature of the stress and the resulting intracellular responses are key determinants of the secretome composition, but monitoring such processes remains technically arduous. Hence, there is growing interest in developing tools for noninvasive secretome screening. In this regard, it has been previously shown that the relative concentrations of relevant metabolites can be traced by surface-enhanced Raman scattering (SERS), thereby allowing label-free biofluid interrogation. However, conventional SERS approaches are insufficient to tackle the requirements imposed by high-throughput modalities, namely fast data acquisition and automatized analysis. Therefore, machine learning methods were implemented to identify cell secretome variations while extracting standard features for cell death classification. To this end, ad hoc microfluidic chips were devised, to readily conduct SERS measurements through a prototype relying on capillary pumps made of filter paper, which eventually would function as the SERS substrates. The developed strategy may pave the way toward a faster implementation of SERS into cell secretome classification, which can be extended even to laboratories lacking highly specialized facilities.
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Affiliation(s)
- Javier Plou
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
| | - Pablo S Valera
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, 48160, Spain
- Department of Applied Chemistry, University of the Basque Country, Donostia, 20018, Spain
| | - Isabel García
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
| | - David Vila-Liarte
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
| | - Carlos Renero-Lecuna
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
| | - Jesús Ruiz-Cabello
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
- Biomedical Research Networking Center in Respiratory Diseases (CIBERES), Madrid, 28029, Spain
- Universidad Complutense de Madrid, Madrid, 28040, Spain
| | - Arkaitz Carracedo
- CIC bioGUNE, Basque Research and Technology Alliance (BRTA), Derio, 48160, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
- Biomedical Research Networking Center in Cancer (CIBERONC), Derio, 48160, Spain
- Translational Prostate Cancer Research Lab, CIC bioGUNE-Basurto, Biocruces Bizkaia Health Research Institute, Derio, 48160, Spain
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, 20014, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, 20014, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
- Cinbio, Universidade de Vigo, Vigo, 36310, Spain
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Montes MM, García I, Paredes Del Puerto JM, Barneche JA, Ibañez Shimabukuro M, Reig Cardarella GF, Martorelli SR, Pérez Ponce de León G. Integrative analysis of new Clinostomum metacercariae (Digenea, Clinostomidae) using COI mtDNA and morphology rises the number of lineages found in South American freshwater fishes. J Helminthol 2023; 97:e85. [PMID: 37945308 DOI: 10.1017/s0022149x23000706] [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] [Indexed: 11/12/2023]
Abstract
Clinostomidae is a diverse family of digenean parasitizing fish-eating birds as adults and fishes as metacercariae. The species composition, within the genus Clinostomum has been steadily increasing in recent years. In Argentina, four named species of Clinostomum have been documented, accompanied by four metacercariae representing distinct genetic lineages whose adults have not been identified. This study focused on examining clinostomids in three fish species - Australoheros scitulus (ASI), Cichlasoma dimerus (CDIM), and Pimelodella laticeps (PLA) - at various localities in Argentina. We conducted both morphological and molecular characterizations of the Clinostomum metacercariae collected from these fish species. Molecular phylogenetic analyses using COI mtDNA were performed to determine the placement of these metacercariae within the clinostomid phylogenetic tree. Clinostomum ASC represents a distinct lineage, morphologically distinguishable from other sequenced metacercariae due to its body shape (widest anteriorly and becoming slender towards the posterior end); this lineage was found to be closely related to C. caffarae. While Clinostomum CDIM and Clinostomum PLA exhibited morphological differences, they clustered together genetically with metacercariae reported in previous studies as Clinostomum L3 and Clinostomum CVI. This outcome, coupled with a low genetic distance (0 to 3%), suggests that they are conspecific with metacercariae found in fish across Mexico, Costa Rica, and Argentina. In light of the extensive diversity of fish species in Argentine freshwater ecosystems (over 500 species), and considering the relatively constrained extent of prior investigations, the anticipation of unearthing additional Clinostomum species or lineages is plausible.
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Affiliation(s)
- M M Montes
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - I García
- Instituto de Limnología "Dr. Raúl A. Ringuelet", CONICET, La Plata, Argentina
| | | | - J A Barneche
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - M Ibañez Shimabukuro
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - G F Reig Cardarella
- Escuela de Tecnología Médica y Centro Integrativo de Biología y Química Aplicada (CIBQA). Universidad Bernardo O' Higgins, Santiago de Chile, Chile
| | - S R Martorelli
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - G Pérez Ponce de León
- Escuela Nacional de Estudios Superiores Unidad Mérida (ENES-Mérida), Universidad Nacional Autónoma de México, Mérida, Yucatán, Mexico
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Carro N, Cobas J, Otero A, Fernández R, García I, Ignacio M, Mouteira A. Spatial distribution and source identification of phthalates and organochlorine compounds in Galician mussels (NW Spain). Mar Pollut Bull 2023; 194:115393. [PMID: 37597416 DOI: 10.1016/j.marpolbul.2023.115393] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/21/2023]
Abstract
The spatial distribution of five phthalate esters (PAEs) and 17 organochlorine compounds (OCs) in wild and raft mussels from Galician littoral collected in 2020, and its relationship with anthropogenic activities was studied in this work. The Rías de Foz and Muros-Noia were the most polluted by PAEs, while the Rías de Ferrol and Barqueiro by PCBs. The highest levels of all contaminants were present in wild mussel, except DEHP that were predominant in raft mussel. The levels of most PAEs were negatively correlated with levels of the lower chlorinated PCBs and OCPs. The spatial distribution of pollutants confirmed by PCA was affected by the proximity to anthropogenic sources, phthalates by urban wastewater and PCBs by industrial inputs, mainly. The study of human exposure assessment suggests that Risk Quotient values were < 1, so the consumption of Galician raft mussels did not pose a risk to human health.
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Affiliation(s)
- N Carro
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - J Cobas
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
| | - A Otero
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
| | - R Fernández
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
| | - I García
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
| | - M Ignacio
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
| | - A Mouteira
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain
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Aguilar-Pozo VB, Chimenos JM, Elduayen-Echave B, Olaciregui-Arizmendi K, López A, Gómez J, Guembe M, García I, Ayesa E, Astals S. Struvite precipitation in wastewater treatment plants anaerobic digestion supernatants using a magnesium oxide by-product. Sci Total Environ 2023; 890:164084. [PMID: 37207781 DOI: 10.1016/j.scitotenv.2023.164084] [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] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/11/2023] [Accepted: 05/07/2023] [Indexed: 05/21/2023]
Abstract
Struvite precipitation is a well-known technology to recover and upcycle phosphorus from municipal wastewater as a slow-release fertiliser. However, the economic and environmental costs of struvite precipitation are constrained by using technical-grade reagents as a magnesium source. This research evaluates the feasibility of using a low-grade magnesium oxide (LG-MgO) by-product from the calcination of magnesite as a magnesium source to precipitate struvite from anaerobic digestion supernatants in wastewater treatment plants. Three distinct LG-MgOs were used in this research to capture the inherent variability of this by-product. The MgO content of the LG-MgOs varied from 42 % to 56 %, which governed the reactivity of the by-product. Experimental results showed that dosing LG-MgO at P:Mg molar ratio close to stoichiometry (i.e. 1:1 and 1:2) favoured struvite precipitation, whereas higher molar ratios (i.e. 1:4, 1:6 and 1:8) favoured calcium phosphate precipitation due to the higher calcium concentration and pH. At a P:Mg molar ratio of 1:1 and 1:2, the percentage of phosphate precipitated was 53-72 % and 89-97 %, respectively, depending on the LG-MgO reactivity. A final experiment was performed to examine the composition and morphology of the precipitate obtained under the most favourable conditions, which showed that (i) struvite was the mineral phase with the highest peaks intensity and (ii) struvite was present in two different shapes: hopper and polyhedral. Overall, this research has demonstrated that LG-MgO is an efficient source of magnesium for struvite precipitation, which fits the circular economy principles by valorising an industrial by-product, reducing the pressure on natural resources, and developing a more sustainable technology for phosphorus recovery.
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Affiliation(s)
- V B Aguilar-Pozo
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain; Department of Materials Science and Physical Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - J M Chimenos
- Department of Materials Science and Physical Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - B Elduayen-Echave
- CEIT-Basque Research and Technology Alliance (BRTA), 20018 Donostia / San Sebastián, Spain; Universidad de Navarra, Tecnun, 20018 Donostia / San Sebastián, Spain
| | - K Olaciregui-Arizmendi
- CEIT-Basque Research and Technology Alliance (BRTA), 20018 Donostia / San Sebastián, Spain; Universidad de Navarra, Tecnun, 20018 Donostia / San Sebastián, Spain
| | - A López
- Navarra de Infraestructuras Locales S.A., 31008 Pamplona, Spain
| | - J Gómez
- Navarra de Infraestructuras Locales S.A., 31008 Pamplona, Spain
| | - M Guembe
- Magnesitas Navarras, S.A., 31630 Zubiri, Spain
| | - I García
- Magnesitas Navarras, S.A., 31630 Zubiri, Spain
| | - E Ayesa
- CEIT-Basque Research and Technology Alliance (BRTA), 20018 Donostia / San Sebastián, Spain; Universidad de Navarra, Tecnun, 20018 Donostia / San Sebastián, Spain
| | - S Astals
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain.
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Carro N, Fernández R, Sóñora S, Cobas J, García I, Ignacio M, Mouteira A. Optimization of micro-QuEChERS extraction coupled with gas chromatography-mass spectrometry for the fast determination of phthalic acid esters in mussel samples. Anal Methods 2023; 15:1836-1845. [PMID: 36974432 DOI: 10.1039/d3ay00042g] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this study, a new miniaturized version of the analytical method based on the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) technique using Florisil in the cleanup step for extracting six phthalic acid esters (PAEs) in mussel samples was developed by using a design of experiments. For this purpose, 1.5 mL of ultrapure water and later, 1.5 mL of acetonitrile were added to 0.1 g of the lyophilized sample, followed by 0.3 g of a commercial extraction salt packet (magnesium sulfate, sodium chloride, sodium citrate dihydrate, and sodium hydrogencitrate sesquihydrate). The recovered extract was purified using 0.1 g of Florisil. The final extract was evaporated and reconstituted in 1 mL of hexane. The six phthalates were determined by a GC-MS (SIM) system. The whole method was validated at two concentration levels. Recoveries ranged from 79% to 108%. Reproducibility in terms of coefficients of variation was between 4.9% and 12.1%. The limits of quantification of the whole method were between 0.53 and 38.0 μg per kg dry weight. Five mussel samples coming from the Galician Rías were analysed using this method. Except for three of the five samples where DnOP (di-n-octyl phthalate) was below the limit of quantification, all PAEs were found in concentrations that ranged between 1.99 and 372.7 μg per kg dry weight.
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Affiliation(s)
- N Carro
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - R Fernández
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - S Sóñora
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - J Cobas
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - I García
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - M Ignacio
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
| | - A Mouteira
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia (INTECMAR), Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611 Vilagarcía de Arousa, Spain.
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9
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Spaeth P, Adhikari S, Heyvaert W, Zhuo X, García I, Liz-Marzán LM, Bals S, Orrit M, Albrecht W. Photothermal Circular Dichroism Measurements of Single Chiral Gold Nanoparticles Correlated with Electron Tomography. ACS Photonics 2022; 9:3995-4004. [PMID: 36573165 PMCID: PMC9783064 DOI: 10.1021/acsphotonics.2c01457] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 06/17/2023]
Abstract
Chemically synthesized metal nanoparticles with morphological chiral features are known to exhibit strong circular dichroism. However, we still lack understanding of the correlation between morphological and chiroptical features of plasmonic nanoparticles. To shed light on that question, single nanoparticle experiments are required. We performed photothermal circular dichroism measurements of single chiral and achiral gold nanoparticles and correlated the chiroptical response to the 3D morphology of the same nanoparticles retrieved by electron tomography. In contrast to an ensemble measurement, we show that individual particles within the ensemble display a broad distribution of strength and handedness of circular dichroism signals. Whereas obvious structural chiral features, such as helical wrinkles, translate into chiroptical ones, nanoparticles with less obvious chiral morphological features can also display strong circular dichroism signals. Interestingly, we find that even seemingly achiral nanoparticles can display large g-factors. The origin of this circular dichroism signal is discussed in terms of plasmonics and other potentially relevant factors.
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Affiliation(s)
- Patrick Spaeth
- Huygens-Kamerlingh
Onnes Laboratory, Leiden University, 2300Leiden, RA, The Netherlands
- Department
of Sustainable Energy Materials, AMOLF, Science Park 104, 1098Amsterdam, XG, The Netherlands
| | - Subhasis Adhikari
- Huygens-Kamerlingh
Onnes Laboratory, Leiden University, 2300Leiden, RA, The Netherlands
| | - Wouter Heyvaert
- EMAT
and NANOlab Center of Excellence, University
of Antwerp, Groenenborgerlaan
171, B-2020Antwerp, Belgium
| | - Xiaolu Zhuo
- Basque
Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
- School
of Science Engineering, The Chinese University
of Hong Kong (Shenzhen), Shenzhen518172, China
| | - Isabel García
- Basque
Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
| | - Luis M. Liz-Marzán
- Basque
Research and Technology Alliance (BRTA), CIC biomaGUNE, Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014Donostia-San Sebastián, Spain
- Ikerbasque
(Basque Foundation for Science), 48009Bilbao, Spain
| | - Sara Bals
- EMAT
and NANOlab Center of Excellence, University
of Antwerp, Groenenborgerlaan
171, B-2020Antwerp, Belgium
| | - Michel Orrit
- Huygens-Kamerlingh
Onnes Laboratory, Leiden University, 2300Leiden, RA, The Netherlands
| | - Wiebke Albrecht
- Huygens-Kamerlingh
Onnes Laboratory, Leiden University, 2300Leiden, RA, The Netherlands
- Department
of Sustainable Energy Materials, AMOLF, Science Park 104, 1098Amsterdam, XG, The Netherlands
- EMAT
and NANOlab Center of Excellence, University
of Antwerp, Groenenborgerlaan
171, B-2020Antwerp, Belgium
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10
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García I, Martínez LA, Zanini A, Raith D, Boedecker J, Stingl MG, Lerner B, Pérez MS, Mertelsmann R. Automatic feedback control by image processing for mixing solutions in a microfluidic device. Biomicrofluidics 2022; 16:054106. [PMID: 36238725 PMCID: PMC9553288 DOI: 10.1063/5.0090543] [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] [Received: 03/07/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023]
Abstract
Two approaches of an automatic control were studied through mathematical fitting obtained from color mixing saturation curves in polydimethylsiloxane microfluidic devices: The integrative control with variable integral gain and integrative control with constant integral gain. The aim of this work is to control the color percentage decrement when dye is injected. The results indicate that microfluidic systems are very sensitive to changes in flow and the control variable needs to change slowly; that is, it must be small (at least 100 times less than the theoretically calculated values). The control and stabilization of the microfluidic system were achieved for dye percentages above 60%. The controlling color percentage could provide a tool to regulate other parameters' concentration applied to cell culture and alkalinity control (pH) of solutions in microfluidic devices.
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Affiliation(s)
| | | | - A. Zanini
- Department of Chemical Engineering, Buenos Aires University—ITHES-UBA—CONICET, Buenos Aires, Argentina
| | - D. Raith
- Neurorobotics Lab, Computer Science Department—Faculty of Engineering, University of Freiburg, Georges-Koehler-Allee 80, 79110 Freiburg, Germany
| | - J. Boedecker
- Department of Medicine I, Medical Center—Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - M. G. Stingl
- Department of Medicine I, Medical Center—Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - B. Lerner
- Authors to whom correspondence should be addressed: and
| | - M. S. Pérez
- Authors to whom correspondence should be addressed: and
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11
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Javier Centellas Pérez F, Devesa Such R, García I, Vera M, Flores C, Muñoz de Bustillo E, Manzano D, Alonso Valente R, Prats M, Pedro Morais J, Luis Quirós Ganga P, Díez Ojea B, Pérez Martínez J, Ortega Cerrato A. MO666: Telemonitoring in Automated Peritoneal Dialysis. Analysis of the First 3 Months of the RM-APD Multicenter Study. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac078.003] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
The use of remote monitoring programs in peritoneal dialysis (RMAPD) has been related to favorable clinical events, as well as possible reductions in healthcare costs, although the medical literature is scarce.
METHOD
Prospective, multicenter, longitudinal 2-year study of cohorts to evaluate the number of significant interventions: face-to-face consultations and unscheduled teleconsultations, number of kilometers (km) saved, as well as clinical consequences (hospitalizations, peritonitis) in a cohort of patients in automated peritoneal dialysis with and without exposure to RMAPD. The data are presented in terms of mean, standard deviation and percentage.
RESULTS
The results of the first 3 months of analysis are shown, in descriptive terms, of incident patients in RMAPD versus No RMAPD, corresponding to 10 Spanish centers participating in the study. The data are shown in the Tables 1 and 2.
CONCLUSION
In this first quarterly exploratory analysis, despite its limitations, it is evident:
Although these results are promising, they still need to be confirmed during the follow-up of the patients over time and checked whether they are also related to other clinical and therapy parameters: time in therapy, technique abandonment rate, dialysis dose, peritonitis rate, hospitalizations and quality of life of the patient.
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Affiliation(s)
| | | | | | - Manel Vera
- Hospital Clínic de Barcelona, Barcelona, Spain
| | - Carmen Flores
- University Hospital of Puerto Real, Puerto Real, Spain
| | | | - Diana Manzano
- Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Spain
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12
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Javier Centellas Pérez F, Devesa Such R, García I, Vera M, Flores C, Muñoz de Bustillo E, Manzano D, Alonso Valente R, Prats M, Pedro Morais J, Díez Ojea B, Luis Quirós Ganga P, Ortega Cerrato A, Pérez Martínez J. MO678: Telemonitoring in Peritoneal Dialysis. Benefits in Clinical Events and Quality of Life. A Retrospective Multicenter Study. Nephrol Dial Transplant 2022. [DOI: 10.1093/ndt/gfac078.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND AND AIMS
Telemonitoring (RM), applied in automated peritoneal dialysis (APD), has shown both clinical and quality of life (QoL) benefits, although current evidence is limited.
The aim of this study is to analyse the number of significant interventions in a 3-month period (unscheduled consultations and teleconsultations, ) as well as clinical consequences (hospitalizations) and QoL, measured by the EuroQol-5D questionnaire in cohort of RMAPD patients.
METHOD
Retrospective multicenter exploratory cohort study analysed three cohorts of patients in RMAPD: incident (3 months in technique) versus prevalent with 6 months to 1 year in technique versus prevalent with more than 1 year in technique.
Both the baseline characteristics of the patients and the number of significant interventions in a 3-month period were analysed: (unscheduled consultations and teleconsultations,) as well as clinical consequences (hospitalizations) and QoL, measured by the EuroQol-5D questionnaire. The variables have been expressed as mean and standard deviation, as well as an ANOVA test to make comparisons between variables, as well as non-parametric for non-normal variables.
RESULTS
Analysis of 100 patients in RMAPD from 10 different Spanish centers, classified as: incident (group 0), prevalent 6 months to 1 year (group 1), prevalent >1 year (group 2), the variables analysed are presented in the form of table (Fig. 1):
From the results analysed, no significant differences were found between the variables analysed, except in the number of unscheduled teleconsultations, significantly higher in group 0 compared to group 2 (P < 0.05).
Interestingly, the patients manifested a good perceived QoL in all groups (M: 0.88, EUROQol-5D).
CONCLUSION
Despite the limitations of this study, the results allow us to consider telemonitoring as a useful technique in patients in APD since:
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Affiliation(s)
| | | | | | - Manel Vera
- Hospital Clínic de Barcelona, Barcelona, Spain
| | - Carmen Flores
- University Hospital of Puerto Real, Puerto Real, Spain
| | | | - Diana Manzano
- Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Spain
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13
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Plou J, Valera PS, García I, de Albuquerque CDL, Carracedo A, Liz-Marzán LM. Prospects of Surface-Enhanced Raman Spectroscopy for Biomarker Monitoring toward Precision Medicine. ACS Photonics 2022; 9:333-350. [PMID: 35211644 PMCID: PMC8855429 DOI: 10.1021/acsphotonics.1c01934] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 05/14/2023]
Abstract
Future precision medicine will be undoubtedly sustained by the detection of validated biomarkers that enable a precise classification of patients based on their predicted disease risk, prognosis, and response to a specific treatment. Up to now, genomics, transcriptomics, and immunohistochemistry have been the main clinically amenable tools at hand for identifying key diagnostic, prognostic, and predictive biomarkers. However, other molecular strategies, including metabolomics, are still in their infancy and require the development of new biomarker detection technologies, toward routine implementation into clinical diagnosis. In this context, surface-enhanced Raman scattering (SERS) spectroscopy has been recognized as a promising technology for clinical monitoring thanks to its high sensitivity and label-free operation, which should help accelerate the discovery of biomarkers and their corresponding screening in a simpler, faster, and less-expensive manner. Many studies have demonstrated the excellent performance of SERS in biomedical applications. However, such studies have also revealed several variables that should be considered for accurate SERS monitoring, in particular, when the signal is collected from biological sources (tissues, cells or biofluids). This Perspective is aimed at piecing together the puzzle of SERS in biomarker monitoring, with a view on future challenges and implications. We address the most relevant requirements of plasmonic substrates for biomedical applications, as well as the implementation of tools from artificial intelligence or biotechnology to guide the development of highly versatile sensors.
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Affiliation(s)
- Javier Plou
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC
bioGUNE, Basque Research and Technology
Alliance (BRTA), 48160 Derio, Spain
| | - Pablo S. Valera
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- CIC
bioGUNE, Basque Research and Technology
Alliance (BRTA), 48160 Derio, Spain
| | - Isabel García
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | | | - Arkaitz Carracedo
- CIC
bioGUNE, Basque Research and Technology
Alliance (BRTA), 48160 Derio, Spain
- Biomedical
Research Networking Center in Cancer (CIBERONC), 48160, Derio, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
- Translational
Prostate Cancer Research Lab, CIC bioGUNE-Basurto, Biocruces Bizkaia Health Research Institute, 48160 Derio, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research
and Technology Alliance (BRTA), 20014 Donostia-San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- Ikerbasque,
Basque Foundation for Science, 48009 Bilbao, Spain
- E-mail:
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14
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Galarreta-Rodriguez I, Marcano L, Castellanos-Rubio I, Gil de Muro I, García I, Olivi L, Fernández-Gubieda ML, Castellanos-Rubio A, Lezama L, de Larramendi IR, Insausti M. Towards the design of contrast-enhanced agents: systematic Ga 3+ doping on magnetite nanoparticles. Dalton Trans 2022; 51:2517-2530. [PMID: 35060578 DOI: 10.1039/d1dt03029a] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The main objective of the preparation of the Fe3-xGaxO4 (0.14 ≤ x ≤ 1.35) system was to further the knowledge of the magnetic response of Ga3+-doped magnetite for application as MRI contrast agents. With this purpose, monodisperse nanoparticles between 7 and 10 nm with different amounts of gallium were prepared from an optimized protocol based on thermal decomposition of metallo-organic precursors. Thorough characterization of the sample was conducted in order to understand the influence of gallium doping on the structural, morphological and magnetic properties of the Fe3-xGaxO4 system. X-ray diffraction and X-ray absorption near-edge structure measurements have proved the progressive incorporation of Ga in the spinel structure, with different occupations in both tetrahedral and octahedral sites. Magnetization measurements as a function of field temperature have shown a clear dependence of magnetic saturation on the gallium content, reaching an Ms value of 110 Am2 kg-1 at 5 K for x = 0.14 (significantly higher than bulk magnetite) and considerably decreasing for amounts above x = 0.57 of gallium. For this reason, nanoparticles with moderate Ga quantities were water-transferred by coating them with the amphiphilic polymer PMAO to further analyse their biomedical potential. Cytotoxicity assays have demonstrated that Fe3-xGaxO4@PMAO formulations with x ≤ 0.57, which are the ones with better magnetic response, are not toxic for cells. Finally, the effect of gallium doping on relaxivities has been analysed by measuring longitudinal (T1-1) and transverse (T1-1) proton relaxation rates at 1.4 T revealing that nanoparticles with x = 0.14 Ga3+ content present remarkable T2 contrast and the nanoparticles with x = 0.26 have great potential to act as dual T1-T2 contrast agents.
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Affiliation(s)
- Itziar Galarreta-Rodriguez
- Dpto. Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain.
| | - Lourdes Marcano
- Dpto. Electricidad y Electrónica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain.,Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489 Berlin, Germany
| | - Idoia Castellanos-Rubio
- Dpto. Electricidad y Electrónica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain
| | - Izaskun Gil de Muro
- Dpto. Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain.
| | - Isabel García
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastián, Spain.,Centro de Investigación Biomédica en Red, Biomateriales, Bioingeniería y Nanomedicina (CIBER-BBN), Spain
| | - Luca Olivi
- Elettra Synchrotron Trieste, 34149 Basovizza, Italy
| | - M L Fernández-Gubieda
- Dpto. Electricidad y Electrónica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain
| | - Ainara Castellanos-Rubio
- Dpto. Genética, Antropología Física y Fisiología Animal, Facultad de Medicina, UPV/EHU, Leioa, Spain
| | - Luis Lezama
- Dpto. Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain.
| | - Idoia Ruiz de Larramendi
- Dpto. Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain.
| | - Maite Insausti
- Dpto. Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, UPV/EHU, Sarriena s/n, 48940 Leioa, Spain. .,BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
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15
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Méndez R, Figuerola A, Chicot M, Barrios A, Pascual N, Ramasco F, Rodríguez D, García I, von Wernitz A, Zurita N, Semiglia A, Jiménez D, Navarro S, Rubio MJ, Vinuesa M, Del Campo L, Bautista A, Pizarro A. Sepsis Code: dodging mortality in a tertiary hospital. Rev Esp Quimioter 2022; 35:43-49. [PMID: 34812031 PMCID: PMC8790636 DOI: 10.37201/req/105.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Introducción En el hospital de La Princesa comienza el “Código Sepsis” (CSP) en el año 2015, como un grupo multidisciplinar que dota al personal sanitario de herramientas clínicas, analíticas y organizativas, con el objetivo de la detección y el tratamiento precoz del paciente con sepsis. El objetivo de este estudio es evaluar el impacto de la implantación de CSP en la mortalidad y determinar las variables asociadas con un aumento de la misma. Material y métodos Se realizó un estudio analítico retrospectivo de los pacientes con activación de la alerta CSP de 2015 a 2018. Se recogieron variables clínico-epidemiológicas, parámetros analíticos y factores de gravedad como el ingreso en Unidades de Cuidados Críticos (UCC) y la necesidad de aminas. La significación estadística se estableció en una p < 0,05. Resultados Se incluyeron 1.121 pacientes. La estancia media fue de 16 días y un 32% requirieron ingreso en UCC. La mortalidad mostró una tendencia lineal descendente estadísticamente significativa del 24% en 2015 hasta el 15% en 2018. Las variables predictivas de mortalidad con asociación estadísticamente significativa fueron el lactato > 2 mmol/L, la creatinina > 1,6 mg/dL y la necesidad de aminas. Conclusiones La implementación de Código Sepsis disminuye la mortalidad de los pacientes con sepsis y shock séptico. La presencia de una cifra de lactato > 2 mmol/L, los niveles de creatinina > 1,6 mg/dL y/o la necesidad de administrar aminas en las primeras 24 horas, se asocian con un aumento de la mortalidad en el paciente con sepsis.
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Affiliation(s)
- R Méndez
- Rosa Méndez Hernández. Servicio de Anestesia y Reanimación. Hospital Universitario de La Princesa. Calle Diego de León 62. 28006. Madrid, Spain.
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16
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Carro N, Mouteira A, García I, Ignacio M, Cobas J. Fast determination of phthalates in mussel samples by micro-matrix solid-phase dispersion (micro-MSPD) coupled with GC–MS/MS. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00303-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractA fast, effective and low cost sample preparation method based on miniaturized matrix solid-phase dispersion (micro-MSPD) combined with gas chromatography coupled to tandem triple-quadrupole-mass spectrometry (GC–MS/MS) has been developed for the determination of six phthalate diesters (DMP, DEP, DBP, BzBP, DEHP and DnOP) in mussel samples. The six target compounds have been included in the list of priority pollutants by United States Environmental Protection Agency. The extraction step was optimized on real spiked mussel coming from Galician Rías by means of a factorial design. The final procedure involved the use of 0.45 g of sample, 0.5 g of dispersant agent (Florisil) and 3 mL of organic solvent (ethyl acetate). The optimized method was validated giving satisfactory analytical performance, low detection limits (0.09 to 6.73 ng g−1 dw) and high recoveries (93 and 114%). The validated method was applied to four real mussel samples coming from Galician Rías.
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17
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Plou J, Molina-Martínez B, García-Astrain C, Langer J, García I, Ercilla A, Perumal G, Carracedo A, Liz-Marzán LM. Nanocomposite Scaffolds for Monitoring of Drug Diffusion in Three-Dimensional Cell Environments by Surface-Enhanced Raman Spectroscopy. Nano Lett 2021; 21:8785-8793. [PMID: 34614348 PMCID: PMC8554797 DOI: 10.1021/acs.nanolett.1c03070] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Monitoring dynamic processes in complex cellular environments requires the integration of uniformly distributed detectors within such three-dimensional (3D) networks, to an extent that the sensor could provide real-time information on nearby perturbations in a non-invasive manner. In this context, the development of 3D-printed structures that can function as both sensors and cell culture platforms emerges as a promising strategy, not only for mimicking a specific cell niche but also toward identifying its characteristic physicochemical conditions, such as concentration gradients. We present herein a 3D cancer model that incorporates a hydrogel-based scaffold containing gold nanorods. In addition to sustaining cell growth, the printed nanocomposite inks display the ability to uncover drug diffusion profiles by surface-enhanced Raman scattering, with high spatiotemporal resolution. We additionally demonstrate that the acquired information could pave the way to designing novel strategies for drug discovery in cancer therapy, through correlation of drug diffusion with cell death.
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Affiliation(s)
- Javier Plou
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain
| | - Beatriz Molina-Martínez
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Clara García-Astrain
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Judith Langer
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Isabel García
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Amaia Ercilla
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain
- Biomedical
Research Networking Center in Cancer (CIBERONC), 48160 Derio, Spain
| | - Govindaraj Perumal
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
| | - Arkaitz Carracedo
- CIC
bioGUNE, Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain
- Biomedical
Research Networking Center in Cancer (CIBERONC), 48160 Derio, Spain
- IKERBASQUE,
Basque Foundation for Science, 48009 Bilbao, Spain
- Biochemistry
and Molecular Biology Department, University
of the Basque Country (UPV/EHU), P.O.
Box 644, E-48080 Bilbao, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- IKERBASQUE,
Basque Foundation for Science, 48009 Bilbao, Spain
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Zhang Y, Gallego I, Plou J, Pedraz JL, Liz-Marzán LM, Ciriza J, García I. SERS monitoring of local pH in encapsulated therapeutic cells. Nanoscale 2021; 13:14354-14362. [PMID: 34477718 DOI: 10.1039/d1nr03969e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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
Microencapsulation of therapeutic cells has widely advanced toward the development of treatments for various diseases, in particular seeking the protection of cell transplants from immune rejection. However, several challenges in cell therapy remain due to the lack of suitable methods to monitor in vivo microcapsule tracking, microcapsule stability and/or altered cell viability and proliferation upon transplantation. We propose in this work the incorporation of contrast agents in microcapsules, which can be easily visualized by SERS imaging. By placing SERS probes in the alginate extracellular layer, a high contrast can be obtained with negligible toxicity. Specifically, we used a pH-sensitive SERS tracking probe consisting of gold nanostars encoded with a pH-sensitive Raman-active molecule, and protected by a layer of biocompatible polymer coating, grafted on the nanoparticles via electrostatic interactions. This nanomaterial is highly sensitive within the biologically relevant pH range, 5.5-7.8. We demonstrate that this SERS-based pH sensor can provide information about cell death of microencapsulated cells, in a non-invasive manner. As a result, we expect that this approach should provide a general strategy to study biological interactions at the microcapsule level.
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Affiliation(s)
- Yizhi Zhang
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastián, Spain
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Pérez-Martínez A, Mora-Rillo M, Ferreras C, Guerra-García P, Pascual-Miguel B, Mestre-Durán C, Borobia A, Carcas A, Queiruga-Parada J, García I, Sánchez-Zapardiel E, Gasior M, De Paz R, Marcos A, Vicario J, Balas A, Moreno M, Eguizabal C, Solano C, Arribas J, Buckley RM, Montejano R, Soria B. Phase I dose-escalation single centre clinical trial to evaluate the safety of infusion of memory T cells as adoptive therapy in COVID-19 (RELEASE). EClinicalMedicine 2021; 39:101086. [PMID: 34405140 PMCID: PMC8361305 DOI: 10.1016/j.eclinm.2021.101086] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Effective treatments are still needed to reduce the severity of symptoms, time of hospitalization, and mortality of COVID-19. SARS-CoV-2 specific memory T-lymphocytes obtained from convalescent donors recovered can be used as passive cell immunotherapy. METHODS Between September and November 2020 a phase 1, dose-escalation, single centre clinical trial was conducted to evaluate the safety and feasibility of the infusion of CD45RA- memory T cells containing SARS-CoV-2 specific T cells as adoptive cell therapy against moderate/severe cases of COVID-19. Nine participants with pneumonia and/or lymphopenia and with at least one human leukocyte antigen (HLA) match with the donor were infused. The first three subjects received the lowest dose (1 × 105 cells/kg), the next three received the intermediate dose (5 × 105 cells/kg) and the last three received the highest dose (1 × 106 cells/kg) of CD45RA- memory T cells. Clinicaltrials.gov registration: NCT04578210. FINDINGS All participants' clinical status measured by National Early Warning Score (NEWS) and 7-category point ordinal scales showed improvement six days after infusion. No serious adverse events were reported. Inflammatory parameters were stabilised post-infusion and the participants showed lymphocyte recovery two weeks after the procedure. Donor microchimerism was observed at least for three weeks after infusion in all patients. INTERPRETATION This study provides preliminary evidence supporting the idea that treatment of COVID-19 patients with moderate/severe symptoms using convalescent CD45RA- memory T cells is feasible and safe. FUNDING Clinical Trial supported by Spanish Clinical Research Network PT17/0017/0013. Co-funded by European Regional Development Fund/European Social Fund. CRIS CANCER Foundation Grant to AP-M and Agencia Valenciana de Innovación Grant AVI-GVA COVID-19-68 to BS.
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Affiliation(s)
- A. Pérez-Martínez
- Pediatric Hemato-oncology Department, University Hospital La Paz, Madrid, Spain
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Faculty of Medicine Universidad Autónoma de Madrid, Madrid, Spain
| | - M. Mora-Rillo
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Infectious Diseases Unit, Internal Medicine Department, University Hospital La Paz, Hospital, Spain
| | - C. Ferreras
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
| | - P. Guerra-García
- Pediatric Hemato-oncology Department, University Hospital La Paz, Madrid, Spain
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Clinical Pharmacology Department University Hospital La Paz, Madrid, Spain
| | - B. Pascual-Miguel
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
| | - C. Mestre-Durán
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
| | - A.M. Borobia
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Faculty of Medicine Universidad Autónoma de Madrid, Madrid, Spain
- Clinical Pharmacology Department University Hospital La Paz, Madrid, Spain
| | - A.J. Carcas
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Faculty of Medicine Universidad Autónoma de Madrid, Madrid, Spain
- Clinical Pharmacology Department University Hospital La Paz, Madrid, Spain
| | - J. Queiruga-Parada
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Clinical Pharmacology Department University Hospital La Paz, Madrid, Spain
| | - I. García
- Clinical Pharmacology Department University Hospital La Paz, Madrid, Spain
| | | | - M. Gasior
- Cell Therapy Unit, Hematology Department, University Hospital La Paz, Madrid, Spain
| | - R. De Paz
- Cell Therapy Unit, Hematology Department, University Hospital La Paz, Madrid, Spain
| | - A. Marcos
- Cell Therapy Unit, Hematology Department, University Hospital La Paz, Madrid, Spain
| | - J.L. Vicario
- Histocompatibility. Centro de Transfusión de Madrid. Madrid, Spain
| | - A. Balas
- Histocompatibility. Centro de Transfusión de Madrid. Madrid, Spain
| | - M.A. Moreno
- Histocompatibility. Centro de Transfusión de Madrid. Madrid, Spain
| | - C. Eguizabal
- Research Unit, Basque Centre for Blood Transfusion and Human Tissues, Osakidetza, Galdakao, Bizkaia, Spain
- Cell Therapy, Stem Cells and Tissues Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Bizkaia, Spain
| | - C. Solano
- INCLIVA, Hospital Clínico Universitario de Valencia. Health Research Institute, University of Valencia, Spain
| | - J.R. Arribas
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Infectious Diseases Unit, Internal Medicine Department, University Hospital La Paz, Hospital, Spain
| | - R.de Miguel Buckley
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Infectious Diseases Unit, Internal Medicine Department, University Hospital La Paz, Hospital, Spain
| | - R. Montejano
- IdiPAZ, Hospital La Paz Institute for Health Research, University Hospital La Paz, Madrid, Spain
- Infectious Diseases Unit, Internal Medicine Department, University Hospital La Paz, Hospital, Spain
| | - B. Soria
- Institute of Bioengineering, Miguel Hernández University, Elche, Alicante, Spain
- Health Research Institute- ISABIAL, Alicante University Hospital, Alicante, Spain
- University Pablo de Olavide, Sevilla, Spain
- Corresponding author at: Institute of Health Research - ISABIAL, General and University Hospital of Alicante, and Institute of Biengineering, University Miguel Hernández de Elche, Alicante, Spain
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García I, Suárez E, Maiz N, Pascual M, Perera R, Arévalo S, Giné C, Molino JA, López M, Carreras E, Manrique S. Fetal heart rate monitoring during fetoscopic repair of open spinal neural tube defects: a single-centre observational cohort study. Int J Obstet Anesth 2021; 48:103195. [PMID: 34175576 DOI: 10.1016/j.ijoa.2021.103195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 04/23/2021] [Accepted: 05/31/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND During fetal surgery, the haemodynamic stability of the fetus depends on the haemodynamic stability of the mother. The primary objective of this study was to assess changes in fetal heart rate (FHR) throughout the different stages of surgery. The secondary objective was to assess potential changes in maternal physiological parameters and their association with FHR. METHODS This was a single-center observational cohort study conducted between 2015 and 2019 in 26 women undergoing intra-uterine fetoscopic repair of open spina bifida. The primary outcome was FHR. Maternal physiologic parameters were measured at the beginning, during and after surgery. The linear mixed-effects model fitted by maximum likelihood was used to assess changes in each variable at specific times throughout the surgery, and the repeated measures correlation coefficient was used to study the association between FHR and maternal physiological parameters. RESULTS One (3.8%) case of fetal bradycardia (FHR <110 beats per minute) required the administration of intramuscular atropine. No other significant FHR changes were observed during surgery. Maternal oesophageal temperature (P <0.001), lactate levels (P=0.002), and mean arterial pressure (P=0.016) changed significantly during surgery, although none of these changes was clinically relevant. The FHR showed a significant association with maternal carbon dioxide tension (r=0.285, 95% CI 0.001 to 0.526) and maternal heart rate (r=0.302, 95% CI 0.025 to 0.535). CONCLUSION The FHR remained stable during intra-uterine fetoscopic repair of open spina bifida. Maternal carbon dioxide tension and heart rate may have a mild influence on FHR.
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Affiliation(s)
- I García
- Anaesthesiology and Intensive Care Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - E Suárez
- Anaesthesiology and Intensive Care Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - N Maiz
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Obstetrics Department, Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
| | - M Pascual
- Anaesthesiology and Intensive Care Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - R Perera
- Anaesthesiology and Intensive Care Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - S Arévalo
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Obstetrics Department, Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - C Giné
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Paediatric Surgery Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus. Barcelona, Spain
| | - J A Molino
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Paediatric Surgery Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus. Barcelona, Spain
| | - M López
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Paediatric Surgery Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus. Barcelona, Spain
| | - E Carreras
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Obstetrics Department, Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - S Manrique
- Anaesthesiology and Intensive Care Department. Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
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21
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Plou J, Charconnet M, García I, Calvo J, Liz-Marzán LM. Preventing Memory Effects in Surface-Enhanced Raman Scattering Substrates by Polymer Coating and Laser-Activated Deprotection. ACS Nano 2021; 15:8984-8995. [PMID: 33984235 PMCID: PMC8158851 DOI: 10.1021/acsnano.1c01878] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The development of continuous monitoring systems requires in situ sensors that are capable of screening multiple chemical species and providing real-time information. Such in situ measurements, in which the sample is analyzed at the point of interest, are hindered by underlying problems derived from the recording of successive measurements within complex environments. In this context, surface-enhanced Raman scattering (SERS) spectroscopy appears as a noninvasive technology with the ability of identifying low concentrations of chemical species as well as resolving dynamic processes under different conditions. To this aim, the technique requires the use of a plasmonic substrate, typically made of nanostructured metals such as gold or silver, to enhance the Raman signal of adsorbed molecules (the analyte). However, a common source of uncertainty in real-time SERS measurements originates from the irreversible adsorption of (analyte) molecules onto the plasmonic substrate, which may interfere in subsequent measurements. This so-called "SERS memory effect" leads to measurements that do not accurately reflect varying conditions of the sample over time. We introduce herein the design of plasmonic substrates involving a nonpermeable poly(lactic-co-glycolic acid) (PLGA) thin layer on top of the plasmonic nanostructure, toward controlling the adsorption of molecules at different times. The polymeric layer can be locally degraded by irradiation with the same laser used for SERS measurements (albeit at a higher fluence), thereby creating a micrometer-sized window on the plasmonic substrate available to molecules present in solution at a selected measurement time. Using SERS substrates coated with such thermolabile polymer layers, we demonstrate the possibility of performing over 10,000 consecutive measurements per substrate as well as accurate continuous monitoring of analytes in microfluidic channels and biological systems.
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Affiliation(s)
- Javier Plou
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), 20014 San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC
bioGUNE, Basque Research and Technology
Alliance (BRTA), 48160 Derio, Spain
| | - Mathias Charconnet
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), 20014 San Sebastián, Spain
- CIC
nanoGUNE, Basque Research and Technology
Alliance (BRTA), 20018 San Sebastián, Spain
| | - Isabel García
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), 20014 San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
| | - Javier Calvo
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), 20014 San Sebastián, Spain
| | - Luis M. Liz-Marzán
- CIC
biomaGUNE, Basque Research and Technology
Alliance (BRTA), 20014 San Sebastián, Spain
- Biomedical
Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- IKERBASQUE,
Basque Foundation for Science, 48009 Bilbao, Spain
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Carro N, López Á, Cobas J, García I, Ignacio M, Mouteira A. Development and Optimization of a Method for Organochlorine Pesticides Determination in Mussels Based on Miniaturized Matrix Solid-Phase Dispersion Combined with Gas Chromatography–Tandem Mass Spectrometry. J Anal Chem 2021. [DOI: 10.1134/s1061934821050099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Perez-Martinez A, Ferreras C, Mora-Rillo M, Guerra P, Pascual-Miguel B, Mestre-Durán C, Borobia A, Carcas A, Quiroga J, García I, Sánchez-Zapardiel E, Gasior M, de Paz R, Marcos A, Vicario J, Balas A, Eguizabal C, Solano C, Arribas J, de Miguel R, Montejano R, Soria B. A phase I/II dose-escalation single center study to evaluate the safety of infusion of memory t cells as adoptive therapy in coronavirus pneumonia and /or lymphopenia (release). Cytotherapy 2021. [PMCID: PMC8111904 DOI: 10.1016/s1465324921002905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Audicana A, Ortega N, Lobera T, Blanca N, De la Parte B, García I, Gelis S, Martín J, Barranco R, Vila C, Laguna JJ. Spanish Society vision of Drug challenge tests. J Investig Allergol Clin Immunol 2021; 31:385-403. [PMID: 33653682 DOI: 10.18176/jiaci.0681] [Citation(s) in RCA: 3] [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] [Indexed: 11/20/2022] Open
Abstract
The controlled drug exposure test (DPT) is currently considered the gold standard for the diagnosis of drug allergy. Drug-induced adverse reactions (ADRs) are a growing reason for consultation in both primary and specialized care. Allergology consultations in Spain are the ones that usually study these ADRs and rule out immunological mechanisms involved in up to 90% of the cases consulted. An adequate approach to these cases has an obvious impact on the costs and efficacy of the treatments required by other specialists, so that if we did not use DPTs, patients would require more expensive, more toxic and less effective treatments in most of the cases. In recent years, a large number of new drugs have been developed and this document is intended to be a practical guide in the management of PDT with the vision of the Spanish Allergology Society. Diagnostic work begins with a detailed history of the patient. Skin tests are only useful for some medications, and in most cases the diagnosis can only be confirmed by DPT. Although there is usually cross-reactivity, DPTs can confirm the diagnosis and also help to find a tolerable alternative drug. The individual management of patients in a programmed way, taking into account both the type of drug to be studied and the patient´s comorbidities, usually allows a solution to be found for the majority of patients.
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Affiliation(s)
- A Audicana
- Servicio de Alergología e Inmunología Clínica, Hospital Universitario Araba, OSI Araba, Vitoria, Spain
| | - N Ortega
- Servicio de Alergología, Hospital Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | - T Lobera
- Sección de Alergología, Hospital Universitario de San Pedro, Logroño, La Rioja, Spain
| | - N Blanca
- Servicio de Alergología, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - B De la Parte
- Servicio de Alergología, Hospital del Tajo, Aranjuez, Spain
| | - I García
- Servicio de Alergología, Hospital Quirón Salud Campo de Gibraltar y Hospital Quiron Salud Córdoba, Spain
| | - S Gelis
- Unidad de Alergia, Servicio de Neumología, Hospital Clinic, Institut d'investigacions Biomediques August Pi i Sunyer (IDIPAPS), Barcelona, Spain
| | - J Martín
- Servicio de Alergología, Hospital San Rafael, La Coruña, Spain
| | - R Barranco
- Servicio de Alergología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - C Vila
- Unidad de Alergia, Hospital Universitario Severo Ochoa, Leganés. Madrid, Spain
| | - J J Laguna
- Unidad de Alergia, Unidad de Alergoanestesia, Hospital Central de la Cruz Roja. Madrid, Spain
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Lozano R, Salles DC, Sandhu S, Aragón IM, Thorne H, López-Campos F, Rubio-Briones J, Gutierrez-Pecharroman AM, Maldonado L, di Domenico T, Sanz A, Prieto JD, García I, Pacheco MI, Garcés T, Llacer C, Romero-Laorden N, Zambrana F, López-Casas PP, Lorente D, Mateo J, Pritchard CC, Antonarakis ES, Olmos D, Lotan TL, Castro E. Association between BRCA2 alterations and intraductal and cribriform histologies in prostate cancer. Eur J Cancer 2021; 147:74-83. [PMID: 33626496 DOI: 10.1016/j.ejca.2021.01.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [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: 10/18/2020] [Revised: 12/29/2020] [Accepted: 01/16/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Intraductal (IDC) and cribriform (CRIB) histologies in prostate cancer have been associated with germline BRCA2 (gBRCA2) mutations in small retrospective series, leading to the recommendation of genetic testing for patients with IDC in the primary tumour. PATIENTS AND METHODS To examine the association of gBRCA2 mutations and other tumour molecular features with IDC and/or cribriform (CRIB) histologies, we conducted a case-control study in which primary prostate tumours from 58 gBRCA2 carriers were matched (1:2) by Gleason Grade Group and specimen type to 116 non-carriers. Presence/absence of IDC and CRIB morphologies was established by two expert uropathologists blinded to gBRCA2 status. Fluorescent in-situ hybridization (FISH) and next-generation sequencing (NGS) were used to detect BRCA2 alterations, PTEN deletions and TMPRSS2-ERG fusions. Chi-squared tests were used to compare the frequency of IDC and CRIB in gBRCA2 carriers and controls and to assess associations with other variables. Logistic regression models were constructed to identify independent factors associated with both histology patterns. RESULTS No significant differences between gBRCA2 carriers and non-carriers were observed in the prevalence of IDC (36% gBRCA2 versus 50% non-carriers, p = 0.085) or CRIB (53% gBRCA2 versus 43% non-carriers p = 0.197) patterns. However, IDC histology was independently associated with bi-allelic BRCA2 alterations (OR 4.3, 95%CI 1.1-16.2) and PTEN homozygous loss (OR 5.2, 95%CI 2.1-13.1). CRIB morphology was also independently associated with bi-allelic BRCA2 alterations (OR 5.6, 95%CI 1.7-19.3). CONCLUSIONS While we found no association between gBRCA2 mutations and IDC or CRIB histologies, bi-allelic BRCA2 loss in primary prostate tumours was significantly associated with both variant morphologies, independently of other clinical-pathologic factors.
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Affiliation(s)
- Rebeca Lozano
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain
| | - Daniela C Salles
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Shahneen Sandhu
- Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Isabel M Aragón
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain
| | - Heather Thorne
- Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Fernando López-Campos
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Radiation Oncology, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - José Rubio-Briones
- Urology Department, Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - Ana M Gutierrez-Pecharroman
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Department of Pathology, Hospital de Getafe, Getafe, Spain
| | - Laneisha Maldonado
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Tomas di Domenico
- Bioinformatics Unit, Spanish National Cancer Research Center, Madrid, Spain
| | - Alejandro Sanz
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - Juan D Prieto
- Department of Pathology, Hospital Universitarios Virgen de la Victoria Málaga, Spain
| | - Isabel García
- Department of Pathology, Hospital Universitarios Virgen de la Victoria Málaga, Spain
| | - María I Pacheco
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - Teresa Garcés
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain
| | - Casilda Llacer
- Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain; Medical Oncology, UGCI, Hospitales Universitarios Virgen de la Victoria y Regional de Málaga, Málaga, Spain
| | | | | | - Pedro P López-Casas
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain
| | - David Lorente
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Medical Oncology, Hospital Provincial de Castellón, Castellón de la Plana, Spain
| | - Joaquin Mateo
- Prostate Cancer Traslational Research Unit, Vall'Hebron Institute of Oncology, Spain
| | | | - Emmanuel S Antonarakis
- Medical Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, USA
| | - David Olmos
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain
| | - Tamara L Lotan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, USA.
| | - Elena Castro
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Centre, Madrid, Spain; Genitourinary Cancer Translational Research Group, Instituto de Investigación Biomédica de Málaga, Spain; Medical Oncology, UGCI, Hospitales Universitarios Virgen de la Victoria y Regional de Málaga, Málaga, Spain.
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de Barros HR, García I, Kuttner C, Zeballos N, Camargo PHC, de Torresi SIC, López-Gallego F, Liz-Marzán LM. Mechanistic Insights into the Light-Driven Catalysis of an Immobilized Lipase on Plasmonic Nanomaterials. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04919] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Heloise Ribeiro de Barros
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, Vila Universitária, 05508-000 São Paulo, Brazil
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
| | - Isabel García
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
- Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
| | - Christian Kuttner
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
| | - Nicoll Zeballos
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
| | - Pedro H. C. Camargo
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, Vila Universitária, 05508-000 São Paulo, Brazil
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, Helsinki 00100, Finland
| | - Susana Inés Cordoba de Torresi
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, Vila Universitária, 05508-000 São Paulo, Brazil
| | - Fernando López-Gallego
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
- Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Paseo de Miramón 182, 20014 Donostia − San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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Bielza R, Sanz J, Zambrana F, Arias E, Malmierca E, Portillo L, Thuissard IJ, Lung A, Neira M, Moral M, Andreu-Vázquez C, Esteban A, Ramírez MI, González L, Carretero G, Moreno RV, Martínez P, López J, Esteban-Ortega M, García I, Vaquero MA, Linares A, Gómez-Santana A, Gómez Cerezo J. Clinical Characteristics, Frailty, and Mortality of Residents With COVID-19 in Nursing Homes of a Region of Madrid. J Am Med Dir Assoc 2020; 22:245-252.e2. [PMID: 33417840 PMCID: PMC7833075 DOI: 10.1016/j.jamda.2020.12.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [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: 10/16/2020] [Revised: 11/25/2020] [Accepted: 12/06/2020] [Indexed: 01/08/2023]
Abstract
Objectives To describe the clinical characteristics, 30-day mortality, and associated factors of patients living in nursing homes (NH) with COVID-19, from March 20 to June 1, 2020. Design This is a retrospective study. A geriatric hospital-based team acted as a consultant and coordinated the care of older people living in NHs from the hospital. Setting and Participants A total of 630 patients aged 70 and older with Coronavirus Disease 2019 COVID-19 living in 55 NHs. Methods A logistic regression was performed to analyze the factors associated with mortality. In addition, Kaplan-Meier curves were applied according to mortality and its associated factors using the log-rank Mantel-Cox test. Results The diagnosis of COVID-19 was mainly made by clinical compatibility (N = 430). Median age was 87 years, 64.6% were women and 45.9% were transferred to be cared for at the hospital. A total of 282 patients died (44.7%) within the 30 days of first attention by the team. A severe form of COVID-19 occurred in 473 patients, and the most frequent symptoms were dyspnea (n = 332) and altered level of consciousness (n = 301). According to multiple logistic regression, male sex (P = .019), the Clinical Frailty Score (CFS) ≥6 (P = .004), dementia (P = .012), dyspnea (P < .001), and having a severe form of COVID-19 (P = .001), were associated with mortality, whereas age and care setting were not. Conclusions and Implications Mortality of the residents living in NHs with COVID-19 was almost 45%. The altered level of consciousness as an atypical presentation of COVID-19 should be considered in this population. A severe form of the disease, present in more than three-quarters of patients, was associated with mortality, apart from the male sex, CFS ≥6, dementia, and dyspnea, whereas age and care setting were not. These findings may also help to recognize patients in which the Advance Care Planning process is especially urgent to assist in the decisions about their care.
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Affiliation(s)
- Rafael Bielza
- Department of Geriatric Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain; Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain.
| | - Juan Sanz
- Department of Dermatology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Francisco Zambrana
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Oncology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Estefanía Arias
- Department of Geriatric Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain; Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain
| | - Eduardo Malmierca
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Internal Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Laura Portillo
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Pharmacy, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Israel J Thuissard
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain
| | - Ana Lung
- Department of Geriatric Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain; Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain
| | - Marta Neira
- Department of Geriatric Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain; Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain
| | - María Moral
- Department of Palliative Care, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Cristina Andreu-Vázquez
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain
| | - Ana Esteban
- Department of Rheumatology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Marcela Irma Ramírez
- Department of Endocrinology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Laura González
- Department of Neurology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Guillermo Carretero
- Department of Orthopedics, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Ricardo Vicente Moreno
- Department of Rehabilitation, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Pilar Martínez
- Department of Rehabilitation, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Javier López
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Rehabilitation, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Mar Esteban-Ortega
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Ophthalmology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Isabel García
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Ophthalmology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - María Antonia Vaquero
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of General Surgery, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Ana Linares
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Urology, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Ana Gómez-Santana
- Department of Preventive Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
| | - Jorge Gómez Cerezo
- Faculty of Biomedical and Health Sciences, Department of Medicine, Universidad Europea de Madrid, Madrid, Spain; Department of Internal Medicine, Hospital Universitario Infanta Sofía (San Sebastián de los Reyes), Madrid, Spain
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28
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Mosquera J, García I, Henriksen-Lacey M, Martínez-Calvo M, Dhanjani M, Mascareñas JL, Liz-Marzán LM. Correction to Reversible Control of Protein Corona Formation on Gold Nanoparticles Using Host-Guest Interactions. ACS Nano 2020; 14:10745-10746. [PMID: 32806049 PMCID: PMC8155325 DOI: 10.1021/acsnano.0c06355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Indexed: 06/11/2023]
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Mosquera J, García I, Henriksen-Lacey M, Martínez-Calvo M, Dhanjani M, Mascareñas JL, Liz-Marzán LM. Reversible Control of Protein Corona Formation on Gold Nanoparticles Using Host-Guest Interactions. ACS Nano 2020; 14:5382-5391. [PMID: 32105057 PMCID: PMC7254833 DOI: 10.1021/acsnano.9b08752] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/27/2020] [Indexed: 05/18/2023]
Abstract
When nanoparticles (NPs) are exposed to biological media, proteins are adsorbed, forming a so-called protein corona (PC). This cloud of protein aggregates hampers the targeting and transport capabilities of the NPs, thereby compromising their biomedical applications. Therefore, there is a high interest in the development of technologies that allow control over PC formation, as this would provide a handle to manipulate NPs in biological fluids. We present a strategy that enables the reversible disruption of the PC using external stimuli, thereby allowing a precise regulation of NP cellular uptake. The approach, demonstrated for gold nanoparticles (AuNPs), is based on a biorthogonal, supramolecular host-guest interactions between an anionic dye bound to the AuNP surface and a positively charged macromolecular cage. This supramolecular complex effectively behaves as a zwitterionic NP ligand, which is able not only to prevent PC formation but also to disrupt a previously formed hard corona. With this supramolecular stimulus, the cellular internalization of AuNPs can be enhanced by up to 30-fold in some cases, and even NP cellular uptake in phagocytic cells can be regulated. Additionally, we demonstrate that the conditional cell uptake of purposely designed gold nanorods can be used to selectively enhance photothermal cell death.
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Affiliation(s)
- Jesús Mosquera
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia-San Sebastián, Spain
- (J.M.)
| | - Isabel García
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
| | - Malou Henriksen-Lacey
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
| | - Miguel Martínez-Calvo
- Departamento de Química
Orgánica and Centro Singular de Investigación en Química
Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Mónica Dhanjani
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia-San Sebastián, Spain
| | - José L. Mascareñas
- Departamento de Química
Orgánica and Centro Singular de Investigación en Química
Biolóxica e Materiais Moleculares (CIQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014 Donostia-San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014 Donostia-San
Sebastián, Spain
- Ikerbasque, Basque
Foundation for Science, 48013 Bilbao, Spain
- (L.M.L.-M.)
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30
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Castro E, Salles DC, Lozano R, Thorne H, Aragon I, Lopez Campos F, Rubio J, Gutierrez Pecharroman A, Prieto D, García I, Pacheco MI, Llacer Perez C, Maldonado L, Romero-Laorden N, Zambrana F, López-Casas PP, Sandhu SK, Antonarakis ES, Olmos D, Lotan TL. Association between BRCA2 status and histologic variants (intraductal [IDC] and cribriform [CRIB] histology) in prostate cancer (PC). J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.5579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5579 Background: IDC histology in PC has been suggested to associate with germline BRCA2 mutations (gBRCA2) in small series, leading to the potential recommendation of genetic testing for all PC patients with IDC in the primary tumor. Methods: We conducted a case-control study in which primary PC from 58 germline BRCA2 mutation carriers ( gBRCA2) and 116 from non-carriers (NC) were matched 1:2 by Gleason score and specimen type (core biopsy/prostatectomy). Samples were independently reviewed by two expert pathologists blinded to genetic status who established the presence of IDC and/or CRIB morphology with supportive immunohistochemical stains in a subset of cases. Next-generation sequencing, aCGH and/or FISH were used to assess for somatic mono-/bi-allelic BRCA2 alterations. PTEN protein loss was determined by IHC, and TMPRSS2-ERG was detected by FISH/qRT-PCR. Chi-square tests were used to compare the frequency of IDC and cribriform histology in gBRCA2 vs NC, as well as to assess the associations with other variables. Logistic regression models were built to identify independent factors associated with IDC and CRIB histology. Results: gBRCA2 cases were younger at diagnosis (median 61.3 vs 64, p < 0.01) and had T3-4 disease more often than NC cases (31% vs 10.5%, p < 0.01), but the two groups did not differ in any other clinical-pathologic characteristics. After independent histopathological review, 79 cases demonstrated IDC histology and 81 had CRIB histology. No differences in the prevalence of IDC (50% NC vs 36% gBRCA2, p = 0.09) or CRIB (43% NC vs 53% gBRCA2, p = 0.20) patterns were observed. The probability of IDC was higher in PC with bi-allelic BRCA2 alterations (OR 5.1, 95%CI 2.1-12.6), PTEN loss (OR 5.1, 95%CI 1.9-13.5) or both (OR 23.0, 95%CI 4.9-107.2) compared to those without these alterations. Bi-allelic BRCA2 alteration was also associated with higher probability of CRIB histology (OR 7.2, 95%CI 3.1-16.4). TMPRSS2-ERG fusions were not associated with IDC or CRIB histology. MVA confirmed the independent association of bi-allelic BRCA2 alteration (p < 0.01) and PTEN loss (p < 0.01) with IDC histology. Bi-allelic BRCA2 alteration (p < 0.01) and Gleason >8 (p < 0.01) were independent risk factors for CRIB histology. Conclusions: Primary PC with bi-allelic BRCA2 alterations was significantly associated with IDC and CRIB histology, independent of other clinical-pathologic factors (while gBRCA2 status alone was not). PTEN loss in primary PC was also independently associated with IDC, but not CRIB, histology.
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Affiliation(s)
- Elena Castro
- Hospitales Virgen de la Victoria y Regional de Málaga, Instituto de Investigación Biomédica de Málaga, Málaga, Spain
| | | | - Rebeca Lozano
- Spanish National Cancer Research Centre, Prostate Cancer Clinical Research Unit, Madrid, Spain
| | | | - Isabel Aragon
- Genitourinary Cancer Traslational Research Unit, Institute of Biomedical Research in Málaga (IBIMA), Málaga, Spain
| | | | - Jose Rubio
- Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Daniel Prieto
- Hospital Virgen de la Victoria, Unidad de Anatomía Patológica, Málaga, Spain
| | - Isabel García
- Hospital Universitario Virgen de la Victoria. Unidad de Anatomía Patológica, Málaga, Spain
| | - Maria I Pacheco
- Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | | | - Laneisha Maldonado
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Francisco Zambrana
- Medical Oncology Department, Infanta Sofía University Hospital, Madrid, Spain
| | - Pedro P. López-Casas
- Spanish National Cancer Research Centre, Prostate Cancer Clinical Research Unit, Madrid, Spain
| | | | | | - David Olmos
- Prostate Cancer Clinical Research Unit, Spanish National Cancer Research Center, Madrid, Spain
| | - Tamara L. Lotan
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD
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Meesaragandla B, García I, Biedenweg D, Toro-Mendoza J, Coluzza I, Liz-Marzán LM, Delcea M. H-Bonding-mediated binding and charge reorganization of proteins on gold nanoparticles. Phys Chem Chem Phys 2020; 22:4490-4500. [DOI: 10.1039/c9cp06371d] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gold nanoparticles with various functionalities interact with the human serum albumin (HSA) leading to protein structural changes. HSA-nanoparticles bioconjugates display lower toxicity and slower cell uptake rates, compared to nanoparticles in the absence of protein.
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Affiliation(s)
- Brahmaiah Meesaragandla
- Institute of Biochemistry
- University of Greifswald
- 17489 Greifswald
- Germany
- ZIK HIKE – Center for Innovation Competence “Humoral Immune Reactions in Cardiovascular Diseases”
| | - Isabel García
- CIC biomaGUNE and CIBER de Bioingeniería
- Biomateriales y Nanomedicina (CIBER-BBN)
- 20014 Donostia-San Sebastián
- Spain
| | - Doreen Biedenweg
- ZIK HIKE – Center for Innovation Competence “Humoral Immune Reactions in Cardiovascular Diseases”
- University of Greifswald
- 17489 Greifswald
- Germany
| | - Jhoan Toro-Mendoza
- CIC biomaGUNE and CIBER de Bioingeniería
- Biomateriales y Nanomedicina (CIBER-BBN)
- 20014 Donostia-San Sebastián
- Spain
| | - Ivan Coluzza
- CIC biomaGUNE and CIBER de Bioingeniería
- Biomateriales y Nanomedicina (CIBER-BBN)
- 20014 Donostia-San Sebastián
- Spain
- Ikerbasque
| | - Luis M. Liz-Marzán
- CIC biomaGUNE and CIBER de Bioingeniería
- Biomateriales y Nanomedicina (CIBER-BBN)
- 20014 Donostia-San Sebastián
- Spain
- Ikerbasque
| | - Mihaela Delcea
- Institute of Biochemistry
- University of Greifswald
- 17489 Greifswald
- Germany
- ZIK HIKE – Center for Innovation Competence “Humoral Immune Reactions in Cardiovascular Diseases”
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Quintanilla M, García I, de Lázaro I, García-Alvarez R, Henriksen-Lacey M, Vranic S, Kostarelos K, Liz-Marzán LM. Thermal monitoring during photothermia: hybrid probes for simultaneous plasmonic heating and near-infrared optical nanothermometry. Theranostics 2019; 9:7298-7312. [PMID: 31695769 PMCID: PMC6831289 DOI: 10.7150/thno.38091] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 08/20/2019] [Indexed: 12/20/2022] Open
Abstract
The control of temperature during photothermal therapy is key to preventing unwanted damage in surrounding tissue or post-treatment inflammatory responses. Lack of accurate thermal control is indeed one of the main limitations that hyperthermia techniques present to allow their translation into therapeutic applications. We developed a nanoprobe that allows controlled local heating, combined with in situ nanothermometry. The design of the probe follows a practical rationale that aims at simplifying experimental requirements and exploits exclusively optical wavelengths matching the first and second biological windows in the near-infrared. Methods: Hybrid nanostructures were chemically synthesized, and combine gold nanostars (photothermal agents) with CaF2:Nd3+,Y3+ nanoparticles (luminescent nanothermometers). Both components were simultaneously excited in the near-infrared range, at 808 nm. Following the goal of simplifying the thermal monitoring technique, the luminescent signal was recorded with a portable near-infrared detector. The performance of the probes was tested in 3D tumor spheroids from a human glioblastoma (U87MG) cell line. The location of the beads within the spheroids was determined measuring Nd3+ emission in a commercial Lightsheet microscope, modified in-house to be able to select the required near-infrared wavelengths. The temperature achieved inside the tumor spheroids was deduced from the luminescence of Nd3+, following a protocol that we developed to provide reliable thermal readings. Results: The choice of materials was shown to work as an optically excited hybrid probe. Depending on the illumination parameters, temperature can be controlled in a range between 37 ºC and 100 ºC. The near-infrared emission of nanothermometers also allows microscopic tracking of the hybrid nanostructures, confirming that the probes can penetrate deeper into the spheroid mass. We observed that, application of optical thermometry in biological environments requires often neglected considerations, since the optical signal changes along the optical path. Accordingly, we developed data analysis protocols that guarantee reliable thermal readings. Conclusions: The prepared hybrid probes are internalized in 3D tumor spheroids and can be used to induce cell death through photothermal effects, while simultaneously measuring the local temperature in situ. We show that luminescent thermometry in biomedical applications requires the development of protocols that guarantee accurate readings. Regarding photothermal treatments, we observe a sharp thermal threshold at around 55 ºC (for 10 min treatments) that separates high survival ratio from complete cell death.
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Abstract
We present the application of surface-enhanced Raman scattering (SERS) spectroscopy for the fast, sensitive and highly specific detection of the galectin-9 (Gal-9) protein in binding buffer (mimicking natural conditions). The method involves the use of specifically designed nanotags comprising glycan-decorated gold nanoparticles encoded with 4-mercaptobenzoic acid. At fast time scales Gal-9 can be detected down to a concentration of 1.2 nM by monitoring the SERS signal of the reporter, driven by aggregation of the functionalized Au NPs tags, induced by Gal-9 recognition. We additionally demonstrate that the sensitivity and concentration working range of the sensor can be tuned via control of aggregation dynamics and cluster size distribution.
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Affiliation(s)
- Judith Langer
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain.
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34
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García I, Henriksen-Lacey M, Calvo J, de Aberasturi DJ, Paz MM, Liz-Marzán LM. Size-Dependent Transport and Cytotoxicity of Mitomycin-Gold Nanoparticle Conjugates in 2D and 3D Mammalian Cell Models. Bioconjug Chem 2018; 30:242-252. [DOI: 10.1021/acs.bioconjchem.8b00898] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Isabel García
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Malou Henriksen-Lacey
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Javier Calvo
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Dorleta Jimenez de Aberasturi
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Manuel M. Paz
- Departamento de Química Orgánica, Facultade de Química, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis M. Liz-Marzán
- Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 20014 Donostia-San Sebastián, Spain
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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Ripalda JM, Buencuerpo J, García I. Solar cell designs by maximizing energy production based on machine learning clustering of spectral variations. Nat Commun 2018; 9:5126. [PMID: 30510195 PMCID: PMC6277435 DOI: 10.1038/s41467-018-07431-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 05/31/2018] [Accepted: 10/31/2018] [Indexed: 11/09/2022] Open
Abstract
Due to spectral sensitivity effects, using a single standard spectrum leads to a large uncertainty when estimating the yearly averaged photovoltaic efficiency or energy yield. Here we demonstrate how machine learning techniques can reduce the yearly spectral sets by three orders of magnitude to sets of a few characteristic spectra, and use the resulting proxy spectra to find the optimal solar cell designs maximizing the yearly energy production. When using standard conditions, our calculated efficiency limits show good agreement with current photovoltaic efficiency records, but solar cells designed for record efficiency under the current standard spectra are not optimal for maximizing the yearly energy yield. Our results show that more than 1 MWh m−2 year−1 can realistically be obtained from advanced multijunction systems making use of the direct, diffuse, and back-side albedo components of the irradiance. Though multijunction solar cells can exceed silicon technology in terms of standard efficiency, the uncertainty in solar spectral changes impacts its energy production. Here, the authors use machine learning techniques to predict the optimal solar cell designs in terms of yearly averaged efficiency.
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Affiliation(s)
- J M Ripalda
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC) Isaac Newton, 8, 28760, Tres Cantos, Madrid, Spain.
| | - J Buencuerpo
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC) Isaac Newton, 8, 28760, Tres Cantos, Madrid, Spain.,National Renewable Energy Laboratory, Golden, CO, 80401, USA
| | - I García
- Instituto de Energía Solar, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040, Madrid, Spain
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Terán-Navarro H, Calderon-Gonzalez R, Salcines-Cuevas D, García I, Marradi M, Freire J, Salmon E, Portillo-Gonzalez M, Frande-Cabanes E, García-Castaño A, Martinez-Callejo V, Gomez-Roman J, Tobes R, Rivera F, Yañez-Diaz S, Álvarez-Domínguez C. Pre-clinical development of Listeria-based nanovaccines as immunotherapies for solid tumours: insights from melanoma. Oncoimmunology 2018; 8:e1541534. [PMID: 30713801 PMCID: PMC6343812 DOI: 10.1080/2162402x.2018.1541534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 05/09/2018] [Revised: 10/15/2018] [Accepted: 10/24/2018] [Indexed: 01/28/2023] Open
Abstract
Gold glyconanoparticles loaded with the listeriolysin O peptide 91-99 (GNP-LLO91-99), a bacterial peptide with anti-metastatic properties, are vaccine delivery platforms facilitating immune cell targeting and increasing antigen loading. Here, we present proof of concept analyses for the consideration of GNP-LLO91-99 nanovaccines as a novel immunotherapy for cutaneous melanoma. Studies using mouse models of subcutaneous melanoma indicated that GNP-LLO91-99 nanovaccines recruite and modulate dendritic cell (DC) function within the tumour, alter tumour immunotolerance inducing melanoma-specific cytotoxic T cells, cause complete remission and improve survival. GNP-LLO91-99 nanovaccines showed superior tumour regression and survival benefits, when combined with anti-PD-1 or anti-CTLA-4 checkpoint inhibitors, resulting in an improvement in the efficacy of these immunotherapies. Studies on monocyte-derived DCs from patients with stage IA, IB or IIIB melanoma confirmed the ability of GNP-LLO91-99 nanovaccines to complement the action of checkpoint inhibitors, by not only reducing the expression of cell-death markers on DCs, but also potentiating DC antigen-presentation. We propose that GNP-LLO91-99 nanovaccines function as immune stimulators and immune effectors and serve as safe cancer therapies, alone or in combination with other immunotherapies.
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Affiliation(s)
- Hector Terán-Navarro
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - Ricardo Calderon-Gonzalez
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - David Salcines-Cuevas
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - Isabel García
- Bionanoplasmonics Laboratory, CIC biomaGUNE and Biomedical Research Networking Center in Bioengineering, Nanomaterials and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, Gipuzkoa, Spain
| | - Marco Marradi
- Bionanoplasmonics Laboratory, CIC biomaGUNE and Biomedical Research Networking Center in Bioengineering, Nanomaterials and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, Gipuzkoa, Spain
| | - Javier Freire
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Erwan Salmon
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - Mar Portillo-Gonzalez
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - Elisabet Frande-Cabanes
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
| | - Almudena García-Castaño
- Servicio de Oncología Médica, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Virginia Martinez-Callejo
- Servicio de Farmacia Hospitalaria, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Javier Gomez-Roman
- Servicio de Anatomía Patológica, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Raquel Tobes
- Oh no Sequences! Research Group, Era7 Bioinformatics, Granada, Andalucia, Spain
| | - Fernando Rivera
- Servicio de Oncología Médica, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Sonsoles Yañez-Diaz
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
- Servicio de Dermatología, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain
| | - Carmen Álvarez-Domínguez
- Group of Listeria based Nanovaccines and cellular vaccines and their applications in biomedicine, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Cantabria, Spain
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Abstract
The primary function of the cell membrane is to protect cells from their surroundings. This entails a strict regulation on controlling the exchange of matter between the cell and its environment. A key factor when considering potential biological applications of a particular chemical structure has to do with its ability to internalize into cells. Molecules that can readily cross cell membranes are frequently needed in biological research and medicine, since most therapeutic entities are designed to modulate intracellular components. However, the design of molecules that do not penetrate cells is also relevant toward, for example, extracellular contrast agents, which are most widely used in clinical diagnosis. Small molecules have occupied the forefront of biomedical research until recently, but the past few decades have seen an increasing use of larger chemical structures, such as proteins or nanoparticles, leading to unprecedented and often unexpectedly novel research. Great achievements have been made toward understanding the rules that govern cellular uptake, which show that cell internalization of molecules is largely affected by their size. For example, macromolecules such as proteins and nucleic acids are usually unable to internalize cells. Intriguingly, in the case of nanoparticles, larger sizes seem to facilitate internalization via endocytic pathways, through which the particles remain trapped in lysosomes and endosomes. In this Account, we aimed at presenting our personal view of how different chemical structures behave in terms of cell internalization due to their size, ranging from small drugs to large nanoparticles. We first introduce the properties of cell membranes and the main mechanisms involved in cellular uptake. We then discuss the cellular internalization of molecules, distinguishing between those with molecular weights below 1 kDa and biological macromolecules such as proteins and nucleic acids. In the last section, we review the biological behavior of nanoparticles, with a special emphasis on plasmonic nanoparticles, which feature a high potential in the biomedical field. For each group of chemical structures, we discuss the parameters affecting their cellular internalization but also strategies that can be applied to achieve the desired intracellular delivery. Particular attention is paid to approaches that allow conditional regulation of the cell internalization process using external triggers, such as activable cell penetrating peptides, due to the impact that these systems may have in drug delivery and sensing applications. The Account ends with a "Conclusions and Outlook" section, where general lessons and future directions toward further advancements are briefly presented.
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Affiliation(s)
- Jesús Mosquera
- CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Isabel García
- CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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Gil-López FJ, Montoya J, Falip M, Aparicio J, López-González FJ, Toledano R, Gil-Nagel A, Molins A, García I, Serrano P, Domenech G, Torres F, Donaire A, Carreño M. Retrospective study of perampanel efficacy and tolerability in myoclonic seizures. Acta Neurol Scand 2018; 138:122-129. [PMID: 29573400 DOI: 10.1111/ane.12931] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2018] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Perampanel is an antiepileptic drug (AED) approved for add-on treatment of focal seizures (with or without generalization) and primary generalized tonic-clonic (GTC) seizures. Our objective was to explore the effectiveness and tolerability of adjunctive perampanel in patients with drug-resistant myoclonic seizures, after failure of other AEDs. MATERIALS AND METHODS Retrospective, multicenter, observational study. Data were collected from individual patient clinical files and analysed using appropriate descriptive statistics and inferential analyses. RESULTS Data are reported for 31 patients with mean age 36.4 years, who had an average epilepsy duration of 18 years, previously taken an average of 5.03 AEDs, and were taking an average of 2.4 AEDs on perampanel initiation. Patients exhibited myoclonic, GTC, absence, tonic and focal seizures, and most had associated cognitive decline and/or ataxia. Median time on perampanel was 6 months, most common dose was 6 mg, and overall retention rate was 84%. The responder rate for myoclonic seizures was defined via reduction of days with myoclonic seizures per month. At 6 months, 15 (48.4%) of the 31 patients were classed as myoclonic seizure responders, 10 (32.3%) were myoclonic seizure free, and 39% saw improvements in functional ability. Of 17 patients with GTC seizures at baseline, 9 (53%) were responders at 6 months, and 8 (47.1%) were seizure free. The most frequent side effects were psychiatric disorders, instability, dizziness and irritability, and mostly resolved with dose reduction. Five patients discontinued perampanel due to side effects. CONCLUSIONS Perampanel caused clinically meaningful improvements in patients with drug-resistant myoclonic seizures. It was generally well tolerated, but psychiatric and neurological side effects sometimes required follow-up and dose reduction.
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Affiliation(s)
- F. J. Gil-López
- Epilepsy Unit; Department of Neurology; Hospital Clínic de Barcelona; Barcelona Spain
| | - J. Montoya
- Department of Neurology; Hospital Lluis Alcanyís; Xàtiva Spain
| | - M. Falip
- Epilepsy Unit; Department of Neurology; Hospital Universitari de Bellvitge; Hospitalet de Llobregat; Barcelona Spain
| | - J. Aparicio
- Epilepsy Unit; Department of Neurology; Hospital Sant Joan de Déu; Barcelona Spain
| | - F. J. López-González
- Epilepsy Unit; Department of Neurology; Complexo Hospitalario Universitario de Santiago de Compostela; A Coruña Spain
| | - R. Toledano
- Epilepsy Unit; Department of Neurology; Hospital Ruber Internacional; Madrid Spain
| | - A. Gil-Nagel
- Epilepsy Unit; Department of Neurology; Hospital Ruber Internacional; Madrid Spain
| | - A. Molins
- Department of Neurology; Hospital Josep Trueta de Girona; Girona Spain
| | - I. García
- Epilepsy Unit; Hospital Clínico Universitario San Carlos; Madrid Spain
| | - P. Serrano
- Department of Neurology; Hospital Carlos Haya; Málaga Spain
| | - G. Domenech
- Medical Statistics Core Facility; IDIBAPS-Hospital Clínic; Barcelona Spain
| | - F. Torres
- Medical Statistics Core Facility; IDIBAPS-Hospital Clínic; Barcelona Spain
| | - A. Donaire
- Epilepsy Unit; Department of Neurology; Hospital Clínic de Barcelona; Barcelona Spain
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS); Barcelona Spain
| | - M. Carreño
- Epilepsy Unit; Department of Neurology; Hospital Clínic de Barcelona; Barcelona Spain
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS); Barcelona Spain
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Martínez-Ávila JC, García Bartolomé A, García I, Dapía I, Tong HY, Díaz L, Guerra P, Frías J, Carcás Sansuan AJ, Borobia AM. Correction to: Pharmacometabolomics applied to zonisamide pharmacokinetic parameter prediction. Metabolomics 2018; 14:87. [PMID: 30834989 DOI: 10.1007/s11306-018-1378-0] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The original version of this article contains a mistake.
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Affiliation(s)
- J C Martínez-Ávila
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain.
| | - A García Bartolomé
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - I García
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - I Dapía
- Medical and Molecular Genetics Institute (INGEMM), La Paz University Hospital, Rare Diseases Networking Biomedical Research Center (CIBERER), ISCIII, Madrid, Spain
| | - Hoi Y Tong
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - L Díaz
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - P Guerra
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - J Frías
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - A J Carcás Sansuan
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain.
| | - A M Borobia
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
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Martínez-Ávila JC, García Bartolomé A, García I, Dapía I, Tong HY, Díaz L, Guerra P, Frías J, Carcás Sansuan AJ, Borobia AM. Pharmacometabolomics applied to zonisamide pharmacokinetic parameter prediction. Metabolomics 2018; 14:70. [PMID: 30830352 DOI: 10.1007/s11306-018-1365-5] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/25/2018] [Indexed: 10/16/2022]
Abstract
INTRODUCTION Zonisamide is a new-generation anticonvulsant antiepileptic drug metabolized primarily in the liver, with subsequent elimination via the renal route. OBJECTIVES Our objective was to evaluate the utility of pharmacometabolomics in the detection of zonisamide metabolites that could be related to its disposition and therefore, to its efficacy and toxicity. METHODS This study was nested to a bioequivalence clinical trial with 28 healthy volunteers. Each participant received a single dose of zonisamide on two separate occasions (period 1 and period 2), with a washout period between them. Blood samples of zonisamide were obtained from all patients at baseline for each period, before volunteers were administered any medication, for metabolomics analysis. RESULTS After a Lasso regression was applied, age, height, branched-chain amino acids, steroids, triacylglycerols, diacyl glycerophosphoethanolamine, glycerophospholipids susceptible to methylation, phosphatidylcholines with 20:4 FA (arachidonic acid) and cholesterol ester and lysophosphatidylcholine were obtained in both periods. CONCLUSION To our knowledge, this is the only research study to date that has attempted to link basal metabolomic status with pharmacokinetic parameters of zonisamide.
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Affiliation(s)
- J C Martínez-Ávila
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain.
| | - A García Bartolomé
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - I García
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - I Dapía
- Medical and Molecular Genetics Institute (INGEMM), La Paz University Hospital, Rare Diseases Networking Biomedical Research Center (CIBERER), ISCIII, Madrid, Spain
| | - Hoi Y Tong
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - L Díaz
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - P Guerra
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - J Frías
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | - A J Carcás Sansuan
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain.
| | - A M Borobia
- Clinical Pharmacology Department, La Paz University Hospital, School of Medicine, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
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Ortega C, García I, Irgang R, Fajardo R, Tapia-Cammas D, Acosta J, Avendaño-Herrera R. First identification and characterization of Streptococcus iniae obtained from tilapia (Oreochromis aureus) farmed in Mexico. J Fish Dis 2018; 41:773-782. [PMID: 29315698 DOI: 10.1111/jfd.12775] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 08/02/2017] [Revised: 11/20/2017] [Accepted: 11/29/2017] [Indexed: 06/07/2023]
Abstract
This is the first study to isolate, identify and characterize Streptococcus iniae as the causative disease agent in two tilapia (Oreochromis aureus) populations. The populations were geographically isolated, of distinct origins, and did not share water sources. Affected fish showed various external (e.g., exophthalmia and cachexia, among others) and internal (e.g., granulomatous septicaemia and interstitial nephritis, among others) signs. All internal organ samples produced pure cultures, two of which (one from each farm, termed S-1 and S-2) were subjected to biochemical, PCR and 16S rRNA sequencing (99.5% similarity) analyses, confirming S. iniae identification. The two isolates presented genetic homogeneity regardless of technique (i.e., RAPD, REP-PCR and ERIC-PCR analyses). Pathogenic potentials were assessed through intraperitoneal injection challenges in rainbow trout (Oncorhynchus mykiss) and zebrafish (Danio rerio). Rainbow trout mortalities were respectively 40% and 70% at 104 and 106 CFU per fish with the S-1 isolate, while 100% mortality rates were recorded in zebrafish at 102 and 104 CFU per fish with the S-2 isolate. The obtained data clearly indicate a relationship between intensified aquaculture activities in Mexico and new disease appearances. Future studies should establish clinical significances for the tilapia industry.
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Affiliation(s)
- C Ortega
- Centro de Investigación y Estudios Avanzados en Salud Animal (CIESA), Facultad de Medicina Veterinaria y Zootecnia (FMVZ), Universidad Autónoma del Estado de México (UAEM), Toluca, México
| | - I García
- Centro de Investigación y Estudios Avanzados en Salud Animal (CIESA), Facultad de Medicina Veterinaria y Zootecnia (FMVZ), Universidad Autónoma del Estado de México (UAEM), Toluca, México
| | - R Irgang
- Universidad Andrés Bello, Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias Biológicas, Viña del Mar, Chile
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - R Fajardo
- Centro de Investigación y Estudios Avanzados en Salud Animal (CIESA), Facultad de Medicina Veterinaria y Zootecnia (FMVZ), Universidad Autónoma del Estado de México (UAEM), Toluca, México
| | - D Tapia-Cammas
- Universidad Andrés Bello, Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias Biológicas, Viña del Mar, Chile
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
| | - J Acosta
- Centro de Investigación y Estudios Avanzados en Salud Animal (CIESA), Facultad de Medicina Veterinaria y Zootecnia (FMVZ), Universidad Autónoma del Estado de México (UAEM), Toluca, México
| | - R Avendaño-Herrera
- Universidad Andrés Bello, Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias Biológicas, Viña del Mar, Chile
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Concepción, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay, Chile
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Carro N, García I, Ignacio M, Mouteira A. Polychlorinated dibenzo-P-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBS) in bivalve mollusk from Galician Rías (N. W., SPAIN). Chemosphere 2018; 197:782-792. [PMID: 29407842 DOI: 10.1016/j.chemosphere.2017.12.171] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 12/22/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
The concentrations of PCDD/Fs (2,3,7,8-chlorosubstituted) and three dioxin-like PCBs (PCB 77, PCB 126 and PCB169) were analyzed in bivalve mollusk collected in several Galician Rías between 2006 and 2014. Levels of Total PCDD/Fs ranged from 0.03 to 0.62 pg WHO-TEQ g-1 wet weight. Total dl-PCBs values were higher than Total PCDD/Fs and ranged from 0.01 to 2.11 pg WHO-TEQ g-1 wet weight. These concentrations were below those considered safe for human consumption. The PCDD/Fs profile was dominated by 2,3,4,7,8-PeCDF and 2,3,7,8-TCDF with a percentage of 24.95 and 23.87 of the Total PCDD/Fs, respectively. In relation to Total dl-PCBs, CB126 was the priority congener with the highest TEF value (0.1). Principal component analysis (PCAs) indicated a clear separation between the northern (Rías de Ferrol and Coruña) and southern Rías (Ría de Pontevedra and Vigo). The northern Rías were the highest contaminated one. Temporal trends showed important reduction rates suggesting that the regulations on dioxin like contaminants have been effective for quality waters in Galician Rías.
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Affiliation(s)
- N Carro
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611, Vilagarcía de Arousa, Spain.
| | - I García
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611, Vilagarcía de Arousa, Spain
| | - M Ignacio
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611, Vilagarcía de Arousa, Spain
| | - A Mouteira
- Instituto Tecnolóxico para o Control do Medio Mariño de Galicia, INTECMAR, Consellería do mar, Xunta de Galicia, Peirao de Vilaxoán s/n, 36611, Vilagarcía de Arousa, Spain
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Hernandez-Escribano L, Iturritxa E, Elvira-Recuenco M, Berbegal M, Campos J, Renobales G, García I, Raposo R. Herbaceous plants in the understory of a pitch canker-affected Pinus radiata plantation are endophytically infected with Fusarium circinatum. FUNGAL ECOL 2018. [DOI: 10.1016/j.funeco.2017.12.001] [Citation(s) in RCA: 18] [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: 11/30/2022]
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Mosquera J, Henriksen-Lacey M, García I, Martínez-Calvo M, Rodríguez J, Mascareñas JL, Liz-Marzán LM. Cellular Uptake of Gold Nanoparticles Triggered by Host–Guest Interactions. J Am Chem Soc 2018; 140:4469-4472. [DOI: 10.1021/jacs.7b12505] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jesús Mosquera
- CIC biomaGUNE and Ciber-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Malou Henriksen-Lacey
- CIC biomaGUNE and Ciber-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Isabel García
- CIC biomaGUNE and Ciber-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Miguel Martínez-Calvo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Jéssica Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE and Ciber-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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García I, Vizoso F, Suárez C, Sanz L, Rodríguez J, Roiz C, García-Muñiz J. Relationship of Tumoral Hyaluronic Acid and Cathepsin D Contents with Histological Type of Gastric Carcinoma. Int J Biol Markers 2018. [DOI: 10.1177/172460080001500302] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of this work was to evaluate the cytosolic contents of hyaluronic acid (HA) and cathepsin D (CatD) in gastric carcinomas and their possible relationships with the clinicopathological parameters of the tumors. Our study demonstrated a wide variability in the cytosolic levels of HA (mean ± SEM: 3748 ± 411 ng/mg protein) and cathepsin D (52 ± 4 pmol/mg protein) in the tumors of 78 gastric cancer patients. In addition, the tumoral contents of HA and CatD were significantly higher (p<0.005) in diffuse type (HA: 6027 ± 1099 ng/mg protein; CatD: 75 ± 13 pmol/mg protein) than in intestinal type (HA: 2735 ± 242 ng/mg protein; CatD: 42±3 pmol/mg protein) carcinomas. These data suggest that both markers may contribute to the biological characterization of gastric carcinomas.
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Affiliation(s)
- I. García
- Servicio de Cirugía General, Hospital Central de Asturias, Oviedo
| | - F. Vizoso
- Servicio de Cirugía General, Hospital de Jove, Gijón
| | - C. Suárez
- Servicio de Cirugía General, Hospital Central de Asturias, Oviedo
| | - L. Sanz
- Servicio de Cirugía General, Hospital de Jove, Gijón
| | | | - C. Roiz
- Servicio de Medicina Nuclear, Hospital Central de Asturias, Oviedo - Spain
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García I, Vizoso F, Andicoechea A, Fernandez P, Suarez C, García-Muñz JL, Allende MT. c-erbB-2 Oncoprotein Content in Gastric Cancer and in Adjacent Mucosa. Int J Biol Markers 2018; 15:231-4. [PMID: 11012099 DOI: 10.1177/172460080001500305] [Citation(s) in RCA: 7] [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: 11/17/2022]
Abstract
The aim of this study was to evaluate, by means of an immunoenzymatic assay, the membranous and cytosolic c-erbB-2 oncoprotein contents in primary tumors and in adjacent mucosa from gastric cancer patients. Fifty-two patients with primary gastric adenocarcinomas were enrolled in this prospective study. c-erbB-2 protein levels were significantly higher in membranous than in cytosolic samples, both in neoplastic tissues (median: 3602 vs 525 NHU/mg protein; p<0.0001) and in adjacent mucosa samples (median: 3174 vs 509 NHU/mg protein; p<0.0001). Nevertheless, there was a significant positive relation between membranous and cytosolic c-erbB-2 protein contents in both neoplastic tissue (p<0.001) and adjacent mucosa (p<0.001) samples. There was no significant difference in the membranous c-erbB-2 protein content between neoplastic tissues and adjacent mucosa samples. However, the cytosolic c-erbB-2 content was significantly higher in neoplastic tissues than in adjacent mucosa (p<0.05). Finally, the results did not show any significant correlations of these oncoprotein contents with patient characteristics, clinicopathologic parameters and overall survival of the study population.
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Affiliation(s)
- I García
- Servicio de Cirugía General, Hospital General de Asturias, Oviedo, Spain
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García I, Vizoso F, Andicoechea A, Raigoso P, Vérez P, Alexandre E, García-Muñiz JL, Allende MT. Clinical Significance of Epidermal Growth Factor Receptor Content in Gastric Cancer. Int J Biol Markers 2018; 16:183-8. [PMID: 11605731 DOI: 10.1177/172460080101600305] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 12/14/2022]
Abstract
The objective of this work was to evaluate the epidermal growth factor receptor (EGFR) content in gastric cancer, its possible relationship with clinicopathological parameters of tumors and its prognostic significance. Membranous EGFR levels were examined by radioligand binding assays in 110 patients with gastric cancer. The mean follow-up period was 30.7 months. EGFR levels of tumors ranged widely, from 0.3 to 510 fmol/mg protein. EGFR levels were significantly higher (p<0.0005) in neoplastic tissue than in paired adjacent mucosa samples (median) (n= 84; 8.7 vs. 3.9 fmol/mg protein). Intratumoral EGFR levels were significantly correlated with tumor stage (p<0.05), and were higher in patients with stage III tumors (median) (7.6, 6.4, 12.3 and 7.5 fmol/mg protein for stages I, II, III and IV, respectively). In addition, the tumor/mucosa ratios of the EGFR content were significantly higher (p<0.05) in patients with stage III tumors (1, 1.8, 3.9, and 0.92, respectively). Although there was no significant relationship between EGFR levels of tumors and overall survival, the results suggest a role for EGFR in tumor progression of gastric cancer.
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Affiliation(s)
- I García
- Servicio de Cirugía General, Hospital Central de Asturias, Oviedo, Spain
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Suárez C, Vizoso F, Rodríguez JC, García I, Raigoso P, Allende MT, García-Muñíz JL, García-Morán M. Prognostic Significance of Cytosolic pS2 Protein Content in Gastric Cancer. Int J Biol Markers 2018; 16:37-44. [PMID: 11288953 DOI: 10.1177/172460080101600105] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
pS2, a 60-amino-acid chain peptide which is the most widespread estrogen-induced RNA messenger in MCF-7 breast cancer cells, is normally detected in the epithelium of gastric mucosa. The aims of this work were to evaluate the cytosolic pS2 content and its clinical significance in gastric carcinomas. Cytosolic pS2 levels were examined by immunoradiometric methods in 108 patients with primary gastric adenocarcinomas. The mean follow-up period was 23.3 months. The cytosolic pS2 levels of the tumors ranged widely, i.e., from 0.1 to 3217 ng/mg protein. There were no significant differences in pS2 content between tumors (mean ± standard error: 137.2±31.4 ng/mg protein) and paired adjacent mucosa samples (n=84; mean ± standard error: 249.6±32.6 ng/mg protein), nor were there any significant differences in tumoral pS2 levels with respect to clinicopathologic parameters such as patient age and sex or tumor location, stage, histologic type or grade. However, the results indicated that high intratumoral pS2 levels were significantly and independently associated with an unfavorable outcome in the overall group of patients (p=0.0266) and in patients with resectable gastric cancer (p=0.003). In conclusion, pS2 may represent a useful biological marker in gastric cancer.
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Affiliation(s)
- C Suárez
- Department of General Surgery, Hospital de Jove, Gijón, Spain
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Reyes-Urueña JM, Campbell CNJ, Vives N, Esteve A, Ambrosioni J, Tural C, Ferrer E, Navarro G, Force L, García I, Masabeu À, Vilaró JM, García de Olalla P, Caylà JA, Miró JM, Casabona J. Estimating the HIV undiagnosed population in Catalonia, Spain: descriptive and comparative data analysis to identify differences in MSM stratified by migrant and Spanish-born population. BMJ Open 2018; 8:e018533. [PMID: 29490955 PMCID: PMC5855442 DOI: 10.1136/bmjopen-2017-018533] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE Undiagnosed HIV continues to be a hindrance to efforts aimed at reducing incidence of HIV. The objective of this study was to provide an estimate of the HIV undiagnosed population in Catalonia and compare the HIV care cascade with this step included between high-risk populations. METHODS To estimate HIV incidence, time between infection and diagnosis and the undiagnosed population stratified by CD4 count, we used the ECDC HIV Modelling Tool V.1.2.2. This model uses data on new HIV and AIDS diagnoses from the Catalan HIV/AIDS surveillance system from 2001 to 2013. Data used to estimate the proportion of people enrolled, on ART and virally suppressed in the HIV care cascade were derived from the PISCIS cohort. RESULTS The total number of people living with HIV (PLHIV) in Catalonia in 2013 was 34 729 (32 740 to 36 827), with 12.3% (11.8 to 18.1) of whom were undiagnosed. By 2013, there were 8458 (8101 to 9079) Spanish-born men who have sex with men (MSM) and 2538 (2334 to 2918) migrant MSM living with HIV in Catalonia. A greater proportion of migrant MSM than local MSM was undiagnosed (32% vs 22%). In the subsequent steps of the HIV care cascade, migrants MSM experience greater losses than the Spanish-born MSM: in retention in care (74% vs 55%), in the proportion on combination antiretroviral treatment (70% vs 50%) and virally suppressed (65% vs 46%). CONCLUSIONS By the end of 2013, there were an estimated 34 729 PLHIV in Catalonia, of whom 4271 were still undiagnosed. This study shows that the Catalan epidemic of HIV has continued to expand with the key group sustaining HIV transmission being MSM living with undiagnosed HIV.
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Affiliation(s)
- Juliana Maria Reyes-Urueña
- Dept Salut, Generalitat de Catalunya, Centre Estudis Epidemiologics sobre les Infeccions de Transmissio Sexual i Sida de Catalunya (CEEISCAT), Badalona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Barcelona, Spain
- Departament de Pediatria, d'Obstetricia i Ginecologia i de Medicina Preventiva i de Salut Publica, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Colin N J Campbell
- Tuberculosis Section, Centre for Infectious Disease Surveillance and Control, National Infection Service, Public Health England, London, UK
| | - Núria Vives
- Dept Salut, Generalitat de Catalunya, Centre Estudis Epidemiologics sobre les Infeccions de Transmissio Sexual i Sida de Catalunya (CEEISCAT), Badalona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Barcelona, Spain
- Departament de Pediatria, d'Obstetricia i Ginecologia i de Medicina Preventiva i de Salut Publica, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Anna Esteve
- Dept Salut, Generalitat de Catalunya, Centre Estudis Epidemiologics sobre les Infeccions de Transmissio Sexual i Sida de Catalunya (CEEISCAT), Badalona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Barcelona, Spain
- Departament de Pediatria, d'Obstetricia i Ginecologia i de Medicina Preventiva i de Salut Publica, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Juan Ambrosioni
- Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Cristina Tural
- Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Elena Ferrer
- Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Barcelona, Spain
| | - Gemma Navarro
- Corporació Sanitària i Universitària Parc Taulí, Sabadell, Spain
| | | | | | | | | | - Patricia García de Olalla
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Agencia de Salud Pública de Barcelona, Barcelona, Spain
| | - Joan Artur Caylà
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Agencia de Salud Pública de Barcelona, Barcelona, Spain
| | - Josep M Miró
- Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Jordi Casabona
- Dept Salut, Generalitat de Catalunya, Centre Estudis Epidemiologics sobre les Infeccions de Transmissio Sexual i Sida de Catalunya (CEEISCAT), Badalona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Barcelona, Spain
- Departament de Pediatria, d'Obstetricia i Ginecologia i de Medicina Preventiva i de Salut Publica, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Carro N, Cobas J, García I, Ignacio M, Mouteira A, Silva B. Development of a method for the determination of SCCPs (short-chain chlorinated paraffins) in bivalve mollusk using Soxtec device followed by gas chromatography-triple quadrupole tandem mass spectrometry. J Anal Sci Technol 2018. [DOI: 10.1186/s40543-018-0139-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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