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Kuhnert L, Kuhnert R, Sárosi MB, Lakoma C, Scholz BK, Lönnecke P, Hey‐Hawkins E, Honscha W. Enhanced reversal of ABCG2-mediated drug resistance by replacing a phenyl ring in baicalein with a meta-carborane. Mol Oncol 2024; 18:280-290. [PMID: 37727134 PMCID: PMC10850795 DOI: 10.1002/1878-0261.13527] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/31/2023] [Accepted: 09/18/2023] [Indexed: 09/21/2023] Open
Abstract
Success of chemotherapy is often hampered by multidrug resistance. One mechanism for drug resistance is the elimination of anticancer drugs through drug transporters, such as breast cancer resistance protein (BCRP; also known as ABCG2), and causes a poor 5-year survival rate of human patients. Co-treatment of chemotherapeutics and natural compounds, such as baicalein, is used to prevent chemotherapeutic resistance but is limited by rapid metabolism. Boron-based clusters as meta-carborane are very promising phenyl mimetics to increase target affinity; we therefore investigated the replacement of a phenyl ring in baicalein by a meta-carborane to improve its affinity towards the human ABCG2 efflux transporter. Baicalein strongly inhibited the ABCG2-mediated efflux and caused a fivefold increase in mitoxantrone cytotoxicity. Whereas the baicalein derivative 5,6,7-trimethoxyflavone inhibited ABCG2 efflux activity in a concentration of 5 μm without reversing mitoxantrone resistance, its carborane analogue 5,6,7-trimethoxyborcalein significantly enhanced the inhibitory effects in nanomolar ranges (0.1 μm) and caused a stronger increase in mitoxantrone toxicity reaching similar values as Ko143, a potent ABCG2 inhibitor. Overall, in silico docking and in vitro studies demonstrated that the modification of baicalein with meta-carborane and three methoxy substituents leads to an enhanced reversal of ABCG2-mediated drug resistance. Thus, this seems to be a promising basis for the development of efficient ABCG2 inhibitors.
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Affiliation(s)
- Lydia Kuhnert
- Faculty of Veterinary Medicine, Institute of Pharmacology, Pharmacy and ToxicologyUniversität LeipzigGermany
| | - Robert Kuhnert
- Faculty of Chemistry and Mineralogy, Institute of Inorganic ChemistryUniversität LeipzigGermany
| | - Menyhárt B. Sárosi
- Center for Nanosystems Chemistry (CNC)Universität WürzburgGermany
- Institut für Organische ChemieUniversität WürzburgGermany
| | - Cathleen Lakoma
- Faculty of Veterinary Medicine, Institute of Pharmacology, Pharmacy and ToxicologyUniversität LeipzigGermany
| | - Birte K. Scholz
- Faculty of Veterinary Medicine, Institute of Pharmacology, Pharmacy and ToxicologyUniversität LeipzigGermany
| | - Peter Lönnecke
- Faculty of Chemistry and Mineralogy, Institute of Inorganic ChemistryUniversität LeipzigGermany
| | - Evamarie Hey‐Hawkins
- Faculty of Chemistry and Mineralogy, Institute of Inorganic ChemistryUniversität LeipzigGermany
| | - Walther Honscha
- Faculty of Veterinary Medicine, Institute of Pharmacology, Pharmacy and ToxicologyUniversität LeipzigGermany
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Qiu B, Yu M, Luque‐Alled JM, Ding S, Foster AB, Budd PM, Fan X, Gorgojo P. High Gas Permeability in Aged Superglassy Membranes with Nanosized UiO-66-NH 2 /cPIM-1 Network Fillers. Angew Chem Int Ed Engl 2024; 63:e202316356. [PMID: 37983661 PMCID: PMC10952568 DOI: 10.1002/anie.202316356] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/15/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
Superglassy membranes synthesised by polymers of intrinsic microporosity (PIMs) suffer from physical aging and show poor gas permeance over time, especially thin membranes, due to the fast rearrangement of nonequilibrium polymer chains. Herein, we constructed a novel PIM-1 thin film nanocomposite membrane (TFN) using nanosized UiO-66-NH2 (≈10 nm)/carboxylated PIM-1 (cPIM-1) as the composite filler. Unlike conventional fillers, which interact with the polymer only via the surface, the UiO-66-NH2 /cPIM-1 forms a stable three-dimensional (3D) network intertwining with the polymer chains, being very effective to impede chain relaxation, and thus physical aging. Nanosizing of UiO-66-NH2 was achieved by regulating the nucleation kinetics using carbon quantum dots (CQD) during the synthesis. This led to increased surface area, and hence more functional groups to bond with cPIM-1 (via hydrogen bonding between -NH2 and -COOH groups), which also improved interfacial compatibility between the 3D network and polymer chains avoiding defect formation. As a result, the novel TFN showed significantly improved performance in gas separation along with reduced aging (i.e. ≈6 % loss in CO2 permeability over 63 days); the aged membranes had a CO2 permeance of 2504 GPU and ideal selectivity values of 37.2 and 23.8 for CO2 /N2 and CO2 /CH4 , respectively.
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Affiliation(s)
- Boya Qiu
- Department of Chemical EngineeringThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Ming Yu
- Department of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
- Department of Chemical EngineeringThe University of MelbourneMelbourneVIC. 3010Australia
| | - Jose Miguel Luque‐Alled
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSICUniversidad de ZaragozaMariano Esquillor50018ZaragozaSpain
- Departmento de Ingeniería Química y Tecnologías del Medio AmbienteUniversidad de ZaragozaPedro Cerbuna 1250009ZaragozaSpain
| | - Shengzhe Ding
- Department of Chemical EngineeringThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Andrew B. Foster
- Department of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Peter M. Budd
- Department of ChemistryThe University of ManchesterOxford RoadManchesterM13 9PLUK
| | - Xiaolei Fan
- Department of Chemical EngineeringThe University of ManchesterOxford RoadManchesterM13 9PLUK
- Nottingham Ningbo China Beacons of Excellence Research and Innovation InstituteUniversity of Nottingham Ningbo China211 Xingguang RoadNingbo315100China
| | - Patricia Gorgojo
- Department of Chemical EngineeringThe University of ManchesterOxford RoadManchesterM13 9PLUK
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSICUniversidad de ZaragozaMariano Esquillor50018ZaragozaSpain
- Departmento de Ingeniería Química y Tecnologías del Medio AmbienteUniversidad de ZaragozaPedro Cerbuna 1250009ZaragozaSpain
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Torres‐Martínez S, Calabuig‐Fariñas S, Moreno‐Manuel A, Bertolini G, Herreros‐Pomares A, Escorihuela E, Duréndez‐Saéz E, Guijarro R, Blasco A, Roz L, Camps C, Jantus‐Lewintre E. Soluble galectin-3 as a microenvironment-relevant immunoregulator with prognostic and predictive value in lung adenocarcinoma. Mol Oncol 2024; 18:190-215. [PMID: 37567864 PMCID: PMC10766205 DOI: 10.1002/1878-0261.13505] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/12/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023] Open
Abstract
Despite the success of therapies in lung cancer, more studies of new biomarkers for patient selection are urgently needed. The present study aims to analyze the role of galectin-3 (GAL-3) in the lung tumor microenvironment (TME) using tumorspheres as a model and explore its potential role as a predictive and prognostic biomarker in non-small cell lung cancer patients. For in vitro studies, lung adenocarcinoma (LUAD) and lung squamous carcinoma (LUSC) primary cultures from early-stage patients and commercial cell lines were cultured, using tumorsphere-forming assays and adherent conditions for the control counterparts. We analyzed the pattern of secretion and expression of GAL-3 using reverse transcription-quantitative real-time PCR (RTqPCR), immunoblot, immunofluorescence, flow cytometry, and immunoassay analysis. Our results using three-dimensional (3D) models of lung tumor cells revealed that soluble GAL-3 (sGAL-3) is highly expressed and secreted. To more accurately mimic the TME, a co-culture of tumorspheres and fibroblasts was used, revealing that GAL-3 could be important as an immunomodulatory molecule expressed and secreted in the TME, modulating immunosuppression through regulatory T cells (TREGS ). In the translational phase, we confirmed that patients with high expression levels of GAL-3 had more TREGS , which suggests that tumors may be recruiting this population through GAL-3. Next, we evaluated levels of sGAL-3 before surgery in LUAD and LUSC patients, hypothesizing that sGAL-3 could be used as an independent prognostic biomarker for overall survival and relapse-free survival in early-stage LUAD patients. Additionally, levels of sGAL-3 at pretreatment and first response assessment from plasma to predict clinical outcomes in advanced LUAD and LUSC patients treated with first-line pembrolizumab were evaluated, further supporting that sGAL-3 has a high efficiency in predicting durable clinical response to pembrolizumab with an area under curve of 0.801 (P = 0.011). Moreover, high levels might predict decreased progression-free survival and OS to anti-PD-1 therapy, with sGAL-3 being a prognosis-independent biomarker for advanced LUAD.
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Affiliation(s)
- Susana Torres‐Martínez
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
| | - Silvia Calabuig‐Fariñas
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of PathologyUniversitat de ValènciaSpain
| | - Andrea Moreno‐Manuel
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
| | - Giulia Bertolini
- Tumor Genomics UnitFondazione IRCCS Istituto Nazionale dei TumoriMilanItaly
| | - Alejandro Herreros‐Pomares
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of BiotechnologyUniversitat Politècnica de ValènciaSpain
| | - Eva Escorihuela
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
| | - Elena Duréndez‐Saéz
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
| | - Ricardo Guijarro
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of SurgeryUniversitat de ValènciaSpain
- Department of Thoracic SurgeryHospital General Universitario de ValenciaSpain
| | - Ana Blasco
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of Medical OncologyHospital General Universitario de ValenciaSpain
| | - Luca Roz
- Tumor Genomics UnitFondazione IRCCS Istituto Nazionale dei TumoriMilanItaly
| | - Carlos Camps
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of Medical OncologyHospital General Universitario de ValenciaSpain
- Department of MedicineUniversitat de ValènciaSpain
| | - Eloisa Jantus‐Lewintre
- Molecular Oncology LaboratoryFundación Investigación Hospital General Universitario de ValenciaSpain
- TRIAL Mixed UnitCentro Investigación Príncipe Felipe—Fundación Investigación Hospital General Universitario de ValenciaSpain
- Centro de Investigación Biomédica en Red CáncerCIBERONCMadridSpain
- Department of BiotechnologyUniversitat Politècnica de ValènciaSpain
- Joint Unit: NanomedicineCentro Investigación Príncipe Felipe—Universitat Politècnica de ValenciaSpain
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Redruello-Romero A, Benitez-Cantos MS, Lopez-Perez D, García-Rubio J, Tamayo F, Pérez-Bartivas D, Moreno-SanJuan S, Ruiz-Palmero I, Puentes-Pardo JD, Vilchez JR, López-Nevot MÁ, García F, Cano C, León J, Carazo Á. Human adipose tissue as a major reservoir of cytomegalovirus-reactive T cells. Front Immunol 2023; 14:1303724. [PMID: 38053998 PMCID: PMC10694288 DOI: 10.3389/fimmu.2023.1303724] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/01/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction Cytomegalovirus (CMV) is a common herpesvirus with a high prevalence worldwide. After the acute infection phase, CMV can remain latent in several tissues. CD8 T cells in the lungs and salivary glands mainly control its reactivation control. White adipose tissue (WAT) contains a significant population of memory T cells reactive to viral antigens, but CMV specificity has mainly been studied in mouse WAT. Therefore, we obtained blood, omental WAT (oWAT), subcutaneous WAT (sWAT), and liver samples from 11 obese donors to characterize the human WAT adaptive immune landscape from a phenotypic and immune receptor specificity perspective. Methods We performed high-throughput sequencing of the T cell receptor (TCR) locus to analyze tissue and blood TCR repertoires of the 11 donors. The presence of TCRs specific to CMV epitopes was tested through ELISpot assays. Moreover, phenotypic characterization of T cells was carried out through flow cytometry. Results High-throughput sequencing analyses revealed that tissue TCR repertoires in oWAT, sWAT, and liver samples were less diverse and dominated by hyperexpanded clones when compared to blood samples. Additionally, we predicted the presence of TCRs specific to viral epitopes, particularly from CMV, which was confirmed by ELISpot assays. Remarkably, we found that oWAT has a higher proportion of CMV-reactive T cells than blood or sWAT. Finally, flow cytometry analyses indicated that most WAT-infiltrated lymphocytes were tissue-resident effector memory CD8 T cells. Discussion Overall, these findings postulate human oWAT as a major reservoir of CMV-specific T cells, presumably for latent viral reactivation control. This study enhances our understanding of the adaptive immune response in human WAT and highlights its potential role in antiviral defense.
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Affiliation(s)
| | - Maria S. Benitez-Cantos
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Biochemistry and Molecular Biology III and Immunology, Faculty of Medicine, University of Granada, Granada, Spain
- GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, Granada, Spain
| | - David Lopez-Perez
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Pharmacology, Faculty of Pharmacy, University of Granada, Granada, Spain
| | | | | | - Daniel Pérez-Bartivas
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
| | - Sara Moreno-SanJuan
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Cytometry and Microscopy Research Service, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
| | - Isabel Ruiz-Palmero
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
| | - Jose D. Puentes-Pardo
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Pharmacology, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Jose R. Vilchez
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Clinical Analyses and Immunology Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | - Miguel Á. López-Nevot
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Department of Biochemistry and Molecular Biology III and Immunology, Faculty of Medicine, University of Granada, Granada, Spain
- Clinical Analyses and Immunology Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | - Federico García
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Clinical Microbiology Unit, San Cecilio University Hospital, Granada, Spain
- Centro de Investigación Biomédica en Red (CIBER) of Infectious Diseases, Health Institute Carlos III, Madrid, Spain
| | - Carlos Cano
- Department of Computer Science and Artificial Intelligence, University of Granada, Granada, Spain
| | - Josefa León
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Digestive Unit, San Cecilio University Hospital, Granada, Spain
| | - Ángel Carazo
- Research Unit, Biosanitary Research Institute of Granada (ibs.GRANADA), Granada, Spain
- Clinical Microbiology Unit, San Cecilio University Hospital, Granada, Spain
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Smoljo T, Tomic B, Lalic H, Dembitz V, Batinic J, Bedalov A, Visnjic D. Bone marrow stromal cells reduce low-dose cytarabine-induced differentiation of acute myeloid leukemia. Front Pharmacol 2023; 14:1258151. [PMID: 37954840 PMCID: PMC10637411 DOI: 10.3389/fphar.2023.1258151] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Low-dose cytarabine (LDAC) is a standard therapy for elderly acute myeloid leukemia (AML) patients unfit for intensive chemotherapy. While high doses of cytarabine induce cytotoxicity, the precise mechanism of action of LDAC in AML remains elusive. In vitro studies have demonstrated LDAC-induced differentiation; however, such differentiation is seldom observed in vivo. We hypothesize that this discrepancy may be attributed to the influence of bone marrow (BM) stromal cells on AML cells. Thus, this study aimed to investigate the impact of BM stromal cells on LDAC-induced differentiation of AML cell lines and primary samples. Our results demonstrate that the presence of MS-5 stromal cells prevented LDAC-induced cell cycle arrest, DNA damage signaling and differentiation of U937 and MOLM-13 cell lines. Although transcriptomic analysis revealed that the stroma reduces the expression of genes involved in cytokine signaling and oxidative stress, data obtained with pharmacological inhibitors and neutralizing antibodies did not support the role for CXCL12, TGF-β1 or reactive oxygen species. The presence of stromal cells reduces LDAC-induced differentiation in primary samples from AML-M4 and myelodysplastic syndrome/AML patients. In conclusion, our study demonstrates that BM stroma reduces differentiation of AML induced by LDAC. These findings provide insights into the limited occurrence of terminal differentiation observed in AML patients, and suggest a potential explanation for this observation.
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Affiliation(s)
- Tomislav Smoljo
- Laboratory for Cell Biology, Department of Physiology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Barbara Tomic
- Laboratory for Cell Biology, Department of Physiology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Hrvoje Lalic
- Laboratory for Cell Biology, Department of Physiology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Vilma Dembitz
- Laboratory for Cell Biology, Department of Physiology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Josip Batinic
- Division of Hematology, Department of Internal Medicine, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Antonio Bedalov
- Clinical Research Division, Fred Hutchinson Cancer Research Centre, Seattle, WA, United States
| | - Dora Visnjic
- Laboratory for Cell Biology, Department of Physiology, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
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Tobiasz J, Al-Harbi N, Bin Judia S, Majid Wakil S, Polanska J, Alsbeih G. Multivariate piecewise linear regression model to predict radiosensitivity using the association with the genome-wide copy number variation. Front Oncol 2023; 13:1154222. [PMID: 37849808 PMCID: PMC10577171 DOI: 10.3389/fonc.2023.1154222] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 09/11/2023] [Indexed: 10/19/2023] Open
Abstract
Introduction The search for biomarkers to predict radiosensitivity is important not only to individualize radiotherapy of cancer patients but also to forecast radiation exposure risks. The aim of this study was to devise a machine-learning method to stratify radiosensitivity and to investigate its association with genome-wide copy number variations (CNVs) as markers of sensitivity to ionizing radiation. Methods We used the Affymetrix CytoScan HD microarrays to survey common CNVs in 129 fibroblast cell strains. Radiosensitivity was measured by the surviving fraction at 2 Gy (SF2). We applied a dynamic programming (DP) algorithm to create a piecewise (segmented) multivariate linear regression model predicting SF2 and to identify SF2 segment-related distinctive CNVs. Results SF2 ranged between 0.1384 and 0.4860 (mean=0.3273 The DP algorithm provided optimal segmentation by defining batches of radio-sensitive (RS), normally-sensitive (NS), and radio-resistant (RR) responders. The weighted mean relative errors (MRE) decreased with increasing the segments' number. The borders of the utmost segments have stabilized after partitioning SF2 into 5 subranges. Discussion The 5-segment model associated C-3SFBP marker with the most-RS and C-7IUVU marker with the most-RR cell strains. Both markers were mapped to gene regions (MCC and SLC1A6, respectively). In addition, C-3SFBP marker is also located in enhancer and multiple binding motifs. Moreover, for most CNVs significantly correlated with SF2, the radiosensitivity increased with the copy-number decrease.In conclusion, the DP-based piecewise multivariate linear regression method helps narrow the set of CNV markers from the whole radiosensitivity range to the smaller intervals of interest. Notably, SF2 partitioning not only improves the SF2 estimation but also provides distinctive markers. Ultimately, segment-related markers can be used, potentially with tissues' specific factors or other clinical data, to identify radiotherapy patients who are most RS and require reduced doses to avoid complications and the most RR eligible for dose escalation to improve outcomes.
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Affiliation(s)
- Joanna Tobiasz
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
- Department of Computer Graphics, Vision and Digital Systems, Silesian University of Technology, Gliwice, Poland
| | - Najla Al-Harbi
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Sara Bin Judia
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Salma Majid Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- Laboratory of Neurogenetics, National Institutes of Health, Rockville, MD, United States
| | - Joanna Polanska
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
| | - Ghazi Alsbeih
- Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Buzón P, Velázquez‐Cruz A, Corrales‐Guerrero L, Díaz‐Quintana A, Díaz‐Moreno I, Roos WH. The Histone Chaperones SET/TAF-1β and NPM1 Exhibit Conserved Functionality in Nucleosome Remodeling and Histone Eviction in a Cytochrome c-Dependent Manner. Adv Sci (Weinh) 2023; 10:e2301859. [PMID: 37548614 PMCID: PMC10582448 DOI: 10.1002/advs.202301859] [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] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/07/2023] [Indexed: 08/08/2023]
Abstract
Chromatin homeostasis mediates essential processes in eukaryotes, where histone chaperones have emerged as major regulatory factors during DNA replication, repair, and transcription. The dynamic nature of these processes, however, has severely impeded their characterization at the molecular level. Here, fluorescence optical tweezers are applied to follow histone chaperone dynamics in real time. The molecular action of SET/template-activating factor-Iβ and nucleophosmin 1-representing the two most common histone chaperone folds-are examined using both nucleosomes and isolated histones. It is shown that these chaperones present binding specificity for fully dismantled nucleosomes and are able to recognize and disrupt non-native histone-DNA interactions. Furthermore, the histone eviction process and its modulation by cytochrome c are scrutinized. This approach shows that despite the different structures of these chaperones, they present conserved modes of action mediating nucleosome remodeling.
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Affiliation(s)
- Pedro Buzón
- Moleculaire BiofysicaZernike InstituutRijksuniversiteit GroningenNijenborgh 4Groningen9747 AGThe Netherlands
- Present address:
Department of BiochemistryUniversity of ZurichZurich8057Switzerland
| | - Alejandro Velázquez‐Cruz
- Instituto de Investigaciones Químicas (IIQ)Centro de Investigaciones Científicas Isla de la Cartuja (cicCartuja)Universidad de Sevilla – Consejo Superior de Investigaciones Científicas (CSIC)Avda. Américo Vespucio 49Sevilla41092Spain
| | - Laura Corrales‐Guerrero
- Instituto de Investigaciones Químicas (IIQ)Centro de Investigaciones Científicas Isla de la Cartuja (cicCartuja)Universidad de Sevilla – Consejo Superior de Investigaciones Científicas (CSIC)Avda. Américo Vespucio 49Sevilla41092Spain
| | - Antonio Díaz‐Quintana
- Instituto de Investigaciones Químicas (IIQ)Centro de Investigaciones Científicas Isla de la Cartuja (cicCartuja)Universidad de Sevilla – Consejo Superior de Investigaciones Científicas (CSIC)Avda. Américo Vespucio 49Sevilla41092Spain
| | - Irene Díaz‐Moreno
- Instituto de Investigaciones Químicas (IIQ)Centro de Investigaciones Científicas Isla de la Cartuja (cicCartuja)Universidad de Sevilla – Consejo Superior de Investigaciones Científicas (CSIC)Avda. Américo Vespucio 49Sevilla41092Spain
| | - Wouter H. Roos
- Moleculaire BiofysicaZernike InstituutRijksuniversiteit GroningenNijenborgh 4Groningen9747 AGThe Netherlands
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Bailey GA, Wadon ME, Komarzynski S, Matthews C, Davies EH, Peall KJ. Accelerometer-derived sleep measures in idiopathic dystonia: A UK Biobank cohort study. Brain Behav 2023; 13:e2933. [PMID: 37547976 PMCID: PMC10498055 DOI: 10.1002/brb3.2933] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/19/2022] [Accepted: 02/11/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Sleep disturbance is an increasingly recognized non-motor trait in dystonia, with varying findings reported to date. Here, we examine sleep in a UK Biobank derived dystonia cohort using subjective self-reported sleep symptoms and objective accelerometer-derived sleep measures, with comparison to a control population. METHODS A total of 241 dystonia cases were compared to 964 matched controls in analysis of self-reported sleep symptoms and changes in sleep architecture using wrist-worn triaxial accelerometers. RESULTS Dystonia participants had poorer self-reported sleep patterns compared to controls. Accelerometery measurements demonstrated later sleep times, reduced time in bed, and shifts in circadian rhythm. No association was observed with pain, and only limited relationships with psychiatric symptoms. DISCUSSION This study demonstrates the utility of accelerometers in longer term evaluation of sleep in dystonia, for measurement of disturbance and response to treatment. Compared to controls, altered sleep and circadian rhythm were more common in dystonia patients which may contribute to the clinical phenotype.
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Affiliation(s)
- Grace A Bailey
- Neuroscience and Mental Health Research InstituteDivision of Psychological Medicine and Clinical NeurosciencesCardiff University School of MedicineCardiffUK
| | - Megan E. Wadon
- Neuroscience and Mental Health Research InstituteDivision of Psychological Medicine and Clinical NeurosciencesCardiff University School of MedicineCardiffUK
| | | | | | | | - Kathryn J. Peall
- Neuroscience and Mental Health Research InstituteDivision of Psychological Medicine and Clinical NeurosciencesCardiff University School of MedicineCardiffUK
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9
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Gong J, Harris K, Lipnicki DM, Castro‐Costa E, Lima‐Costa MF, Diniz BS, Xiao S, Lipton RB, Katz MJ, Wang C, Preux P, Guerchet M, Gbessemehlan A, Ritchie K, Ancelin M, Skoog I, Najar J, Sterner TR, Scarmeas N, Yannakoulia M, Kosmidis MH, Guaita A, Rolandi E, Davin A, Gureje O, Trompet S, Gussekloo J, Riedel‐Heller S, Pabst A, Röhr S, Shahar S, Singh DKA, Rivan NFM, van Boxtel M, Köhler S, Ganguli M, Chang C, Jacobsen E, Haan M, Ding D, Zhao Q, Xiao Z, Narazaki K, Chen T, Chen S, Ng TP, Gwee X, Numbers K, Mather KA, Scazufca M, Lobo A, De‐la‐Cámara C, Lobo E, Sachdev PS, Brodaty H, Hackett ML, Peters SAE, Woodward M. Sex differences in dementia risk and risk factors: Individual-participant data analysis using 21 cohorts across six continents from the COSMIC consortium. Alzheimers Dement 2023; 19:3365-3378. [PMID: 36790027 PMCID: PMC10955774 DOI: 10.1002/alz.12962] [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: 08/07/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 02/16/2023]
Abstract
INTRODUCTION Sex differences in dementia risk, and risk factor (RF) associations with dementia, remain uncertain across diverse ethno-regional groups. METHODS A total of 29,850 participants (58% women) from 21 cohorts across six continents were included in an individual participant data meta-analysis. Sex-specific hazard ratios (HRs), and women-to-men ratio of hazard ratios (RHRs) for associations between RFs and all-cause dementia were derived from mixed-effect Cox models. RESULTS Incident dementia occurred in 2089 (66% women) participants over 4.6 years (median). Women had higher dementia risk (HR, 1.12 [1.02, 1.23]) than men, particularly in low- and lower-middle-income economies. Associations between longer education and former alcohol use with dementia risk (RHR, 1.01 [1.00, 1.03] per year, and 0.55 [0.38, 0.79], respectively) were stronger for men than women; otherwise, there were no discernible sex differences in other RFs. DISCUSSION Dementia risk was higher in women than men, with possible variations by country-level income settings, but most RFs appear to work similarly in women and men.
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Affiliation(s)
- Jessica Gong
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
- The George Institute for Global HealthImperial College LondonLondonUK
| | - Katie Harris
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
| | - Darren M. Lipnicki
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthFaculty of Medicine and HealthUNSW SydneySydneyAustralia
| | - Erico Castro‐Costa
- Center for Studies in Public Health and Aging Rene Rachou InstituteOswaldo Cruz FoundationBelo HorizonteBrazil
| | - Maria Fernanda Lima‐Costa
- Center for Studies in Public Health and Aging Rene Rachou InstituteOswaldo Cruz FoundationBelo HorizonteBrazil
| | - Breno S. Diniz
- UConn Center on AgingDepartment of PsychiatrySchool of MedicineUniversity of Connecticut Health CenterFarmingtonConnecticutUSA
| | - Shifu Xiao
- Department of Geriatric PsychiatryShanghai Mental Health CentreShanghai Jiaotong University School of MedicineShanghaiChina
| | - Richard B. Lipton
- Department of NeurologyAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Mindy J. Katz
- Department of NeurologyAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Cuiling Wang
- Department of Epidemiology and Community HeathAlbert Einstein College of MedicineBronxNew YorkUSA
| | - Pierre‐Marie Preux
- Inserm U1094, IRD U270, Univ. LimogesCHU Limoges, EpiMaCT ‐ Epidemiology of chronic diseases in tropical zoneInstitute of Epidemiology and Tropical NeurologyOmegaHealthLimogesFrance
| | - Maëlenn Guerchet
- Inserm U1094, IRD U270, Univ. LimogesCHU Limoges, EpiMaCT ‐ Epidemiology of chronic diseases in tropical zoneInstitute of Epidemiology and Tropical NeurologyOmegaHealthLimogesFrance
| | - Antoine Gbessemehlan
- Inserm U1094, IRD U270, Univ. LimogesCHU Limoges, EpiMaCT ‐ Epidemiology of chronic diseases in tropical zoneInstitute of Epidemiology and Tropical NeurologyOmegaHealthLimogesFrance
| | - Karen Ritchie
- INM Institute for Neurosciences of MontpellierUniv MontpellierINSERMMontpellierFrance
| | - Marie‐Laure Ancelin
- INM Institute for Neurosciences of MontpellierUniv MontpellierINSERMMontpellierFrance
| | - Ingmar Skoog
- Department of Psychiatry and NeurochemistryCenter for Ageing and Health (Age Cap)University of GothenburgGothenburgSweden
| | - Jenna Najar
- Department of Psychiatry and NeurochemistryCenter for Ageing and Health (Age Cap)University of GothenburgGothenburgSweden
| | - Therese Rydberg Sterner
- Department of Psychiatry and NeurochemistryCenter for Ageing and Health (Age Cap)University of GothenburgGothenburgSweden
| | - Nikolaos Scarmeas
- 1st Department of NeurologyAiginition HospitalNational and Kapodistrian University of Athens Medical SchoolAthensGreece
- Department of NeurologyColumbia UniversityNew YorkNew YorkUSA
| | - Mary Yannakoulia
- Department of Nutrition and DieteticsHarokopio UniversityAthensGreece
| | - Mary H. Kosmidis
- Lab of Cognitive NeuroscienceSchool of PsychologyAristotle University of ThessalonikiThessalonikiGreece
| | | | - Elena Rolandi
- Golgi Cenci FoundationAbbiategrassoItaly
- Department of Brain and Behavioral SciencesUniversity of PaviaPaviaItaly
| | | | - Oye Gureje
- WHO Collaborating Centre for Research and Training in Mental HealthNeurosciences and Substance AbuseDepartment of PsychiatryUniversity of IbadanIbadanNigeria
| | - Stella Trompet
- Section of Gerontology and GeriatricsDepartment of Internal MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jacobijn Gussekloo
- Section of Gerontology and GeriatricsDepartment of Internal MedicineLeiden University Medical CenterLeidenthe Netherlands
- Department of Public Health and Primary CareLeidenthe Netherlands
| | - Steffi Riedel‐Heller
- Institute of Social MedicineOccupational Health and Public Health (ISAP)University of LeipzigLeipzigGermany
| | - Alexander Pabst
- Institute of Social MedicineOccupational Health and Public Health (ISAP)University of LeipzigLeipzigGermany
| | - Susanne Röhr
- Institute of Social MedicineOccupational Health and Public Health (ISAP)University of LeipzigLeipzigGermany
| | - Suzana Shahar
- Centre for Healthy Ageing and WellnessUniversiti Kebangsaan MalaysiaKuala LumpurMalaysia
| | | | | | - Martin van Boxtel
- Alzheimer Centrum LimburgSchool for Mental Health and NeuroscienceMaastricht UniversityMaastrichtthe Netherlands
| | - Sebastian Köhler
- Alzheimer Centrum LimburgSchool for Mental Health and NeuroscienceMaastricht UniversityMaastrichtthe Netherlands
| | - Mary Ganguli
- Department of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Chung‐Chou Chang
- Department of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Erin Jacobsen
- Department of MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Mary Haan
- Department of Epidemiology and BiostatisticsSchool of MedicineUniversity of California, San FranciscoSan FranciscoCaliforniaUSA
| | - Ding Ding
- Institute of NeurologyNational Center for Neurological DisordersNational Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina
| | - Qianhua Zhao
- Institute of NeurologyNational Center for Neurological DisordersNational Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina
| | - Zhenxu Xiao
- Institute of NeurologyNational Center for Neurological DisordersNational Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina
| | - Kenji Narazaki
- Center for Liberal ArtsFukuoka Institute of TechnologyFukuokaJapan
| | - Tao Chen
- Sports and Health Research CenterDepartment of Physical EducationTongji UniversityShanghaiChina
| | - Sanmei Chen
- Global Health NursingDepartment of Health SciencesGraduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan
| | - Tze Pin Ng
- Gerontology Research ProgrammeDepartment of Psychological MedicineYong Loo Lin School of MedicineNational University of SingaporeQueenstownSingapore
| | - Xinyi Gwee
- Gerontology Research ProgrammeDepartment of Psychological MedicineYong Loo Lin School of MedicineNational University of SingaporeQueenstownSingapore
| | - Katya Numbers
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthFaculty of Medicine and HealthUNSW SydneySydneyAustralia
| | - Karen A. Mather
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthFaculty of Medicine and HealthUNSW SydneySydneyAustralia
| | - Marcia Scazufca
- Instituto de Psiquiátria e LIM‐23Hospital da ClínicasFaculdade de MedicinaUniversidade de São PauloSão PauloBrazil
| | - Antonio Lobo
- Department of Medicine and Psychiatry Universidad de ZaragozaZaragozaSpain
- Instituto de Investigación Sanitaria Aragón (IIS Aragón)ZaragozaSpain
- n°33 CIBERSAMMadridSpain
| | - Concepción De‐la‐Cámara
- Department of Medicine and Psychiatry Universidad de ZaragozaZaragozaSpain
- n°33 CIBERSAMMadridSpain
| | - Elena Lobo
- Instituto de Investigación Sanitaria Aragón (IIS Aragón)ZaragozaSpain
- n°33 CIBERSAMMadridSpain
- Department of Public Health Universidad de ZaragozaZaragozaSpain
| | - Perminder S. Sachdev
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthFaculty of Medicine and HealthUNSW SydneySydneyAustralia
| | - Henry Brodaty
- Centre for Healthy Brain Ageing (CHeBA)Discipline of Psychiatry and Mental HealthFaculty of Medicine and HealthUNSW SydneySydneyAustralia
| | - Maree L. Hackett
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
- Faculty of Health and WellbeingUniversity of Central LancashireLancashireUK
| | - Sanne A. E. Peters
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
- The George Institute for Global HealthImperial College LondonLondonUK
- Julius Center for Health Sciences and Primary CareUniversity Medical Center UtrechtUtrecht UniversityUtrechtthe Netherlands
| | - Mark Woodward
- The George Institute for Global HealthUniversity of New South WalesSydneyAustralia
- The George Institute for Global HealthImperial College LondonLondonUK
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10
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Mendes AI, Fraga AG, Peixoto MJ, Aroso I, Longatto‐Filho A, Marques AP, Pedrosa J. Gellan gum spongy-like hydrogel-based dual antibiotic therapy for infected diabetic wounds. Bioeng Transl Med 2023; 8:e10504. [PMID: 37206216 PMCID: PMC10189450 DOI: 10.1002/btm2.10504] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/15/2023] [Accepted: 02/27/2023] [Indexed: 05/21/2023] Open
Abstract
Diabetic foot infection (DFI) is an important cause of morbidity and mortality. Antibiotics are fundamental for treating DFI, although bacterial biofilm formation and associated pathophysiology can reduce their effectiveness. Additionally, antibiotics are often associated with adverse reactions. Hence, improved antibiotic therapies are required for safer and effective DFI management. On this regard, drug delivery systems (DDSs) constitute a promising strategy. We propose a gellan gum (GG)-based spongy-like hydrogel as a topical and controlled DDS of vancomycin and clindamycin, for an improved dual antibiotic therapy against methicillin-resistant Staphylococcus aureus (MRSA) in DFI. The developed DDS presents suitable features for topical application, while promoting the controlled release of both antibiotics, resulting in a significant reduction of in vitro antibiotic-associated cytotoxicity without compromising antibacterial activity. The therapeutic potential of this DDS was further corroborated in vivo, in a diabetic mouse model of MRSA-infected wounds. A single DDS administration allowed a significant bacterial burden reduction in a short period of time, without exacerbating host inflammatory response. Taken together, these results suggest that the proposed DDS represents a promising strategy for the topical treatment of DFI, potentially overcoming limitations associated with systemic antibiotic administration and minimizing the frequency of administration.
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Affiliation(s)
- Ana Isabel Mendes
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Alexandra Gabriel Fraga
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Maria João Peixoto
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
| | - Ivo Aroso
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoGuimarãesPortugal
| | - Adhemar Longatto‐Filho
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- Molecular Oncology Research CenterBarretos Cancer HospitalBarretosSão PauloBrazil
- Laboratory of Medical Investigation (LIM) 14Hospital das Clínicas da Faculdade de Medicina da Universidade de São PauloSão PauloBrazil
| | - Alexandra Pinto Marques
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
- 3B's Research Group, I3Bs – Research Institute on Biomaterials, Biodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoGuimarãesPortugal
| | - Jorge Pedrosa
- Life and Health Sciences Research Institute (ICVS)School of MedicineUniversity of MinhoBragaPortugal
- ICVS/3B's–PT Government Associate LaboratoryBraga/GuimarãesPortugal
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11
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Felip E, Pradenas E, Romeo M, Marfil S, Trinité B, Urrea V, Hernández A, Ballana E, Cucurull M, Mateu L, Massanella M, Clotet B, Morán T, Blanco J. Impact of chemotherapy and/or immunotherapy on neutralizing antibody response to SARS-CoV-2 mRNA-1237 vaccine in patients with solid tumors. Mol Oncol 2023; 17:686-694. [PMID: 36495129 PMCID: PMC9877816 DOI: 10.1002/1878-0261.13359] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/02/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Patients with solid tumors have been a risk group since the beginning of the SARS-CoV-2 pandemic due to more significant complications, hospitalizations or deaths. The immunosuppressive state of cancer treatments or the tumor itself could influence the development of post-vaccination antibodies. This study prospectively analyzed 89 patients under chemotherapy and/or immunotherapy, who received two doses of the mRNA-1237 vaccine, and were compared with a group of 26 non-cancer individuals. Information on adverse events and neutralizing antibodies against the ancestral strain of SARS-CoV-2 (WH1) have been analyzed. Local reactions accounted for 65%, while systemic reactions accounted for 46% of oncologic individuals/cancer patients. Regarding the response to vaccination, 6.7% of cancer patients developed low neutralizing antibody levels. Lower levels of neutralizing antibodies between cancer and non-cancer groups were significant in individuals without previous SARS-CoV-2 infection, but not in previously infected individuals. We also observed that patients receiving chemotherapy or chemoimmunotherapy have significantly lower levels of neutralizing antibodies than non-cancer individuals. In conclusion, our study confirms the importance of prioritizing cancer patients receiving anticancer treatment in SARS-CoV-2 vaccination programs.
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Affiliation(s)
- Eudald Felip
- IrsiCaixa AIDS Research InstituteBadalonaSpain
- Medical Oncology Department, Catalan Institute of Oncology – BadalonaBadalona Applied Research Group in Oncology (B‐ARGO)Spain
| | | | - Margarita Romeo
- Medical Oncology Department, Catalan Institute of Oncology – BadalonaBadalona Applied Research Group in Oncology (B‐ARGO)Spain
| | | | | | | | - Ainhoa Hernández
- Medical Oncology Department, Catalan Institute of Oncology – BadalonaBadalona Applied Research Group in Oncology (B‐ARGO)Spain
| | - Ester Ballana
- IrsiCaixa AIDS Research InstituteBadalonaSpain
- Germans Trias i Pujol Research Institute (IGTP)BadalonaSpain
- CIBER Infectious Diseases (CIBERINFEC), Carlos III Institute of Health (ISCIII)MadridSpain
| | - Marc Cucurull
- Medical Oncology Department, Catalan Institute of Oncology – BadalonaBadalona Applied Research Group in Oncology (B‐ARGO)Spain
| | - Lourdes Mateu
- Infectious Diseases DepartmentHospital Universitari Germans Trias i PujolBadalonaSpain
- Fundació Lluita contra les InfeccionsHospital Universitari Germans Trias i PujolBadalonaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Carlos III Institute of Health (ISCIII)MadridSpain
- University of Vic–Central University of Catalonia (UVic‐UCC)Spain
| | - Marta Massanella
- IrsiCaixa AIDS Research InstituteBadalonaSpain
- CIBER Infectious Diseases (CIBERINFEC), Carlos III Institute of Health (ISCIII)MadridSpain
- University of Vic–Central University of Catalonia (UVic‐UCC)Spain
| | - Bonaventura Clotet
- IrsiCaixa AIDS Research InstituteBadalonaSpain
- CIBER Infectious Diseases (CIBERINFEC), Carlos III Institute of Health (ISCIII)MadridSpain
- University of Vic–Central University of Catalonia (UVic‐UCC)Spain
| | - Teresa Morán
- Medical Oncology Department, Catalan Institute of Oncology – BadalonaBadalona Applied Research Group in Oncology (B‐ARGO)Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research InstituteBadalonaSpain
- Germans Trias i Pujol Research Institute (IGTP)BadalonaSpain
- CIBER Infectious Diseases (CIBERINFEC), Carlos III Institute of Health (ISCIII)MadridSpain
- University of Vic–Central University of Catalonia (UVic‐UCC)Spain
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12
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Coelho M, Mahar R, Belew GD, Torres A, Barosa C, Cabral F, Viegas I, Gastaldelli A, Mendes VM, Manadas B, Jones JG, Merritt ME. Enrichment of hepatic glycogen and plasma glucose from H₂ 18 O informs gluconeogenic and indirect pathway fluxes in naturally feeding mice. NMR Biomed 2023; 36:e4837. [PMID: 36151589 PMCID: PMC9845176 DOI: 10.1002/nbm.4837] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/22/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Deuterated water (2 H2 O) is a widely used tracer of carbohydrate biosynthesis in both preclinical and clinical settings, but the significant kinetic isotope effects (KIE) of 2 H can distort metabolic information and mediate toxicity. 18 O-water (H2 18 O) has no significant KIE and is incorporated into specific carbohydrate oxygens via well-defined mechanisms, but to date it has not been evaluated in any animal model. Mice were given H2 18 O during overnight feeding and 18 O-enrichments of liver glycogen, triglyceride glycerol (TG), and blood glucose were quantified by 13 C NMR and mass spectrometry (MS). Enrichment of oxygens 5 and 6 relative to body water informed indirect pathway contributions from the Krebs cycle and triose phosphate sources. Compared with mice fed normal chow (NC), mice whose NC was supplemented with a fructose/glucose mix (i.e., a high sugar [HS] diet) had significantly higher indirect pathway contributions from triose phosphate sources, consistent with fructose glycogenesis. Blood glucose and liver TG 18 O-enrichments were quantified by MS. Blood glucose 18 O-enrichment was significantly higher for HS versus NC mice and was consistent with gluconeogenic fructose metabolism. TG 18 O-enrichment was extensive for both NC and HS mice, indicating a high turnover of liver triglyceride, independent of diet. Thus H2 18 O informs hepatic carbohydrate biosynthesis in similar detail to 2 H2 O but without KIE-associated risks.
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Affiliation(s)
- Margarida Coelho
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
- Department of Chemistry, Faculty of Sciences and TechnologyUniversity of CoimbraCoimbraPortugal
| | - Rohit Mahar
- Department of Biochemistry and Molecular BiologyUniversity of FloridaGainesvilleFloridaUSA
| | - Getachew D. Belew
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Alejandra Torres
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Cristina Barosa
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Fernando Cabral
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Ivan Viegas
- Center for Functional Ecology, Department of Life SciencesUniversity of CoimbraCoimbraPortugal
| | | | - Vera M. Mendes
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Bruno Manadas
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - John G. Jones
- CNC ‐ Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | - Matthew E. Merritt
- Department of Biochemistry and Molecular BiologyUniversity of FloridaGainesvilleFloridaUSA
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13
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Bailey GA, Rawlings A, Torabi F, Pickrell WO, Peall KJ. Longitudinal analysis of the relationship between motor and psychiatric symptoms in idiopathic dystonia. Eur J Neurol 2022; 29:3513-3527. [PMID: 35997000 PMCID: PMC9826317 DOI: 10.1111/ene.15530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/11/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND PURPOSE Although psychiatric diagnoses are recognized in idiopathic dystonia, no previous studies have examined the temporal relationship between idiopathic dystonia and psychiatric diagnoses at scale. Here, we determine rates of psychiatric diagnoses and psychiatric medication prescription in those diagnosed with idiopathic dystsuponia compared to matched controls. METHODS A longitudinal population-based cohort study using anonymized electronic health care data in Wales (UK) was conducted to identify individuals with idiopathic dystonia and comorbid psychiatric diagnoses/prescriptions between 1 January 1994 and 31 December 2017. Psychiatric diagnoses/prescriptions were identified from primary and secondary health care records. RESULTS Individuals with idiopathic dystonia (n = 52,589) had higher rates of psychiatric diagnosis and psychiatric medication prescription when compared to controls (n = 216,754, 43% vs. 31%, p < 0.001; 45% vs. 37.9%, p < 0.001, respectively), with depression and anxiety being most common (cases: 31% and 28%). Psychiatric diagnoses predominantly predated dystonia diagnosis, particularly in the 12 months prior to diagnosis (incidence rate ratio [IRR] = 1.98, 95% confidence interval [CI] = 1.9-2.1), with an IRR of 12.4 (95% CI = 11.8-13.1) for anxiety disorders. There was, however, an elevated rate of most psychiatric diagnoses throughout the study period, including the 12 months after dystonia diagnosis (IRR = 1.96, 95% CI = 1.85-2.07). CONCLUSIONS This study suggests a bidirectional relationship between psychiatric disorders and dystonia, particularly with mood disorders. Psychiatric and motor symptoms in dystonia may have common aetiological mechanisms, with psychiatric disorders potentially forming prodromal symptoms of idiopathic dystonia.
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Affiliation(s)
- Grace A. Bailey
- Neuroscience and Mental Health Research Institute, Division of Psychological Medicine and Clinical NeurosciencesCardiff University School of MedicineCardiffUK
| | | | - Fatemeh Torabi
- Swansea University Medical SchoolSwanseaUK
- Health Data ResearchLondonUK
| | - William Owen Pickrell
- Swansea University Medical SchoolSwanseaUK
- Department of Neurology, Morriston HospitalSwansea Bay University Health BoardSwanseaUK
| | - Kathryn J. Peall
- Neuroscience and Mental Health Research Institute, Division of Psychological Medicine and Clinical NeurosciencesCardiff University School of MedicineCardiffUK
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14
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Kujawa T, Marczyk M, Polanska J. Influence of single-cell RNA sequencing data integration on the performance of differential gene expression analysis. Front Genet 2022; 13:1009316. [PMID: 36386846 PMCID: PMC9663917 DOI: 10.3389/fgene.2022.1009316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/13/2022] [Indexed: 12/02/2022] Open
Abstract
Large-scale comprehensive single-cell experiments are often resource-intensive and require the involvement of many laboratories and/or taking measurements at various times. This inevitably leads to batch effects, and systematic variations in the data that might occur due to different technology platforms, reagent lots, or handling personnel. Such technical differences confound biological variations of interest and need to be corrected during the data integration process. Data integration is a challenging task due to the overlapping of biological and technical factors, which makes it difficult to distinguish their individual contribution to the overall observed effect. Moreover, the choice of integration method may impact the downstream analyses, including searching for differentially expressed genes. From the existing data integration methods, we selected only those that return the full expression matrix. We evaluated six methods in terms of their influence on the performance of differential gene expression analysis in two single-cell datasets with the same biological study design that differ only in the way the measurement was done: one dataset manifests strong batch effects due to the measurements of each sample at a different time. Integrated data were visualized using the UMAP method. The evaluation was done both on individual gene level using parametric and non-parametric approaches for finding differentially expressed genes and on gene set level using gene set enrichment analysis. As an evaluation metric, we used two correlation coefficients, Pearson and Spearman, of the obtained test statistics between reference, test, and corrected studies. Visual comparison of UMAP plots highlighted ComBat-seq, limma, and MNN, which reduced batch effects and preserved differences between biological conditions. Most of the tested methods changed the data distribution after integration, which negatively impacts the use of parametric methods for the analysis. Two algorithms, MNN and Scanorama, gave very poor results in terms of differential analysis on gene and gene set levels. Finally, we highlight ComBat-seq as it led to the highest correlation of test statistics between reference and corrected dataset among others. Moreover, it does not distort the original distribution of gene expression data, so it can be used in all types of downstream analyses.
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Affiliation(s)
- Tomasz Kujawa
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
| | - Michał Marczyk
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
- Yale Cancer Center, Yale School of Medicine, New Haven, CT, United States
| | - Joanna Polanska
- Department of Data Science and Engineering, Silesian University of Technology, Gliwice, Poland
- *Correspondence: Joanna Polanska,
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15
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Borrmann F, Tsuda T, Guskova O, Kiriy N, Hoffmann C, Neusser D, Ludwigs S, Lappan U, Simon F, Geisler M, Debnath B, Krupskaya Y, Al‐Hussein M, Kiriy A. Charge-Compensated N-Doped π-Conjugated Polymers: Toward both Thermodynamic Stability of N-Doped States in Water and High Electron Conductivity. Adv Sci (Weinh) 2022; 9:e2203530. [PMID: 36065004 PMCID: PMC9631074 DOI: 10.1002/advs.202203530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/27/2022] [Indexed: 05/28/2023]
Abstract
The understanding and applications of electron-conducting π-conjugated polymers with naphtalene diimide (NDI) blocks show remarkable progress in recent years. Such polymers demonstrate a facilitated n-doping due to the strong electron deficiency of the main polymer chain and the presence of the positively charged side groups stabilizing a negative charge of the n-doped backbone. Here, the n-type conducting NDI polymer with enhanced stability of its n-doped states for prospective "in-water" applications is developed. A combined experimental-theoretical approach is used to identify critical features and parameters that control the doping and electron transport process. The facilitated polymer reduction ability and the thermodynamic stability in water are confirmed by electrochemical measurements and doping studies. This material also demonstrates a high conductivity of 10-2 S cm-1 under ambient conditions and 10-1 S cm-1 in vacuum. The modeling explains the stabilizing effects for various dopants. The simulations show a significant doping-induced "collapse" of the positively charged side chains on the core bearing a partial negative charge. This explains a decrease in the lamellar spacing observed in experiments. This study fundamentally enables a novel pathway for achieving both thermodynamic stability of the n-doped states in water and the high electron conductivity of polymers.
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Affiliation(s)
- Fabian Borrmann
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Takuya Tsuda
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Olga Guskova
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
- Dresden Center for Computational Materials Science (DCMS)TU Dresden01062DresdenGermany
| | - Nataliya Kiriy
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Cedric Hoffmann
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - David Neusser
- IPOC‐Functional PolymersInstitute of Polymer Chemistry & Center for Integrated Quantum Science and Technology (IQST)University of StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Sabine Ludwigs
- IPOC‐Functional PolymersInstitute of Polymer Chemistry & Center for Integrated Quantum Science and Technology (IQST)University of StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Uwe Lappan
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Frank Simon
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Martin Geisler
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
| | - Bipasha Debnath
- Leibniz‐Institut für Festkörper‐ und Werkstoffforschung DresdenHelmholtzstraße 2001069DresdenGermany
| | - Yulia Krupskaya
- Leibniz‐Institut für Festkörper‐ und Werkstoffforschung DresdenHelmholtzstraße 2001069DresdenGermany
| | - Mahmoud Al‐Hussein
- Physics Department and Hamdi Mango Center for Scientific ResearchThe University of JordanAmman11942Jordan
| | - Anton Kiriy
- Leibniz‐Institut für Polymerforschung Dresden e.VHohe Straße 601069DresdenGermany
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16
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Durán-Rey D, Brito-Pereira R, Ribeiro C, Ribeiro S, Sánchez-Margallo JA, Crisóstomo V, Irastorza I, Silván U, Lanceros-Méndez S, Sánchez-Margallo FM. Development and evaluation of different electroactive poly(vinylidene fluoride) architectures for endothelial cell culture. Front Bioeng Biotechnol 2022; 10:1044667. [PMID: 36338140 PMCID: PMC9626752 DOI: 10.3389/fbioe.2022.1044667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/07/2022] [Indexed: 11/28/2022] Open
Abstract
Tissue engineering (TE) aims to develop structures that improve or even replace the biological functions of tissues and organs. Mechanical properties, physical-chemical characteristics, biocompatibility, and biological performance of the materials are essential factors for their applicability in TE. Poly(vinylidene fluoride) (PVDF) is a thermoplastic polymer that exhibits good mechanical properties, high biocompatibility and excellent thermal properties. However, PVDF structuring, and the corresponding processing methods used for its preparation are known to significantly influence these characteristics. In this study, doctor blade, salt-leaching, and electrospinning processing methods were used to produce PVDF-based structures in the form of films, porous membranes, and fiber scaffolds, respectively. These PVDF scaffolds were subjected to a variety of characterizations and analyses, including physicochemical analysis, contact angle measurement, cytotoxicity assessment and cell proliferation. All prepared PVDF scaffolds are characterized by a mechanical response typical of ductile materials. PVDF films displayed mostly vibration modes for the a-phase, while the remaining PVDF samples were characterized by a higher content of electroactive β-phase due the low temperature solvent evaporation during processing. No significant variations have been observed between the different PVDF membranes with respect to the melting transition. In addition, all analysed PVDF samples present a hydrophobic behavior. On the other hand, cytotoxicity assays confirm that cell viability is maintained independently of the architecture and processing method. Finally, all the PVDF samples promote human umbilical vein endothelial cells (HUVECs) proliferation, being higher on the PVDF film and electrospun randomly-oriented membranes. These findings demonstrated the importance of PVDF topography on HUVEC behavior, which can be used for the design of vascular implants.
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Affiliation(s)
- David Durán-Rey
- Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
| | - Ricardo Brito-Pereira
- CMEMS-UMinho, University of Minho, Guimarães, Portugal
- LABBELS-Associate Laboratory, Braga/Guimarães, Portugal
- CF-UM-UP, Physics Centre of Minho and Porto Universities, University of Minho—Campus de Gualtar, Braga, Portugal
- IB-S Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Clarisse Ribeiro
- CF-UM-UP, Physics Centre of Minho and Porto Universities, University of Minho—Campus de Gualtar, Braga, Portugal
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, Portugal
| | - Sylvie Ribeiro
- CF-UM-UP, Physics Centre of Minho and Porto Universities, University of Minho—Campus de Gualtar, Braga, Portugal
- LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, Portugal
| | - Juan A. Sánchez-Margallo
- Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
- RICORS-TERAV Network, Instituto de Salud Carlos III, Madrid, Spain
| | - Verónica Crisóstomo
- Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
- RICORS-TERAV Network, Instituto de Salud Carlos III, Madrid, Spain
| | - Igor Irastorza
- CF-UM-UP, Physics Centre of Minho and Porto Universities, University of Minho—Campus de Gualtar, Braga, Portugal
- Cell Biology and Histology Department, Faculty of Medicine, Leioa, Spain
| | - Unai Silván
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Senentxu Lanceros-Méndez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Francisco M. Sánchez-Margallo
- Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
- RICORS-TERAV Network, Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: Francisco M. Sánchez-Margallo,
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17
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Wilden A, Glaubitz J, Otto O, Biedenweg D, Nauck M, Mack M, Ribback S, Bröker BM, von Rheinbaben SF, Lerch MM, Aghdassi AA, Weiss FU, Sendler M. Mobilization of CD11b+/Ly6chi monocytes causes multi organ dysfunction syndrome in acute pancreatitis. Front Immunol 2022; 13:991295. [PMID: 36300116 PMCID: PMC9589437 DOI: 10.3389/fimmu.2022.991295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/23/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Acute pancreatitis (AP) is an inflammatory disorder, the severe form of which is burdened with multi-organ dysfunction and high mortality. The pathogenesis of life –threatening organ complications, such as respiratory and renal failure, is unknown. Design Organ dysfunction was investigated in a mouse model of AP. The influence of monocytes and neutrophils on multi organ dysfunction syndrome (MODS) was investigated in vivo by antibody depletion. Using real-time-fluorescence and deformability-cytometry (RT-DC) analysis we determined the mechanical properties of neutrophils and monocytes during AP. Furthermore, blood samples of pancreatitis patients were used to characterize severity-dependent chemokine profiles according to the revised Atlanta classification. Results Similar to AP in humans, severe disease in the mouse model associates with organ dysfunction mainly of lung and kidney, which is triggered by a mobilisation of Ly6g-/CD11b+/Ly6c hi monocytes, but not of Ly6g+/CD11b+ neutrophils. Monocyte depletion by anti-CCR2 antibody treatment ameliorated lung function (oxygen consumption) without interfering with the systemic immune response. RT-DC analysis of circulation monocytes showed a significant increase in cell size during SAP, but without a compensatory increase in elasticity. Patient chemokine profiles show a correlation of AP severity with monocyte attracting chemokines like MCP-1 or MIG and with leukocyte mobilisation. Conclusion In AP, the physical properties of mobilized monocytes, especially their large size, result in an obstruction of the fine capillary systems of the lung and of the kidney glomeruli. A selective depletion of monocytes may represent a treatment strategy for pancreatitis as well as for other inflammation-related disorders.
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Affiliation(s)
- Anika Wilden
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Juliane Glaubitz
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Oliver Otto
- Center for Innovation Competence: Humoral Immune Reactions in Cardiovascular Disorders, University of Greifswald, Greifswald, Germany
| | - Doreen Biedenweg
- Center for Innovation Competence: Humoral Immune Reactions in Cardiovascular Disorders, University of Greifswald, Greifswald, Germany
- Department of Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Diagnostics, University Medicine Greifswald, Greifswald, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK) (German Centre for Cardiovascular Research), Partner Site Greifswald, University Medicine, Greifswald, Germany
| | - Matthias Mack
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Silvia Ribback
- Institute of Pathology, Universitat Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Barbara M. Bröker
- Department of Immunology, University Medicine Greifswald, Greifswald, Germany
| | | | - Markus M. Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | | | - Frank Ulrich Weiss
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Sendler
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
- *Correspondence: Matthias Sendler,
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18
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Kairyte A, Kvedaraite M, Kazlauskas E, Gelezelyte O. Exploring the links between various traumatic experiences and ICD-11 PTSD and Complex PTSD: A cross-sectional study. Front Psychol 2022; 13:896981. [PMID: 36186396 PMCID: PMC9521547 DOI: 10.3389/fpsyg.2022.896981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 08/19/2022] [Indexed: 11/13/2022] Open
Abstract
Background The 11th revision of the International Classification of Diseases (ICD-11) included two distinct trauma-related diagnoses—Posttraumatic Stress Disorder (PTSD) and Complex Posttraumatic Stress Disorder (CPTSD). The initial diagnostic factor for both disorders is exposure to a traumatic event. This study aimed to explore whether exposure to different traumatic experiences distinguish risk for PTSD and CPTSD. Methods The study sample comprised 158 trauma-exposed participants, M(SD)age = 33.61(9.73). The Life Events Checklist-Revised (LEC-R) was used to evaluate trauma exposure, and the International Trauma Questionnaire (ITQ) was used to assess risk for ICD-11 PTSD and CPTSD. Multinomial logistic regression was used to determine traumatic events as predictors of risk for PTSD and CPTSD. Results Analysis revealed that sexual abuse experienced in childhood or adulthood was associated with both PTSD and CPTSD. History of other unwanted sexual experiences and childhood physical abuse predicted CPTSD compared to PTSD, whereas exposure to natural disasters predicted PTSD compared to CPTSD. Conclusions The results showed that experiences of certain traumatic events, such as sexual trauma, childhood physical abuse or natural disasters, might help distinguish risk for PTSD and CPTSD. Nevertheless, future studies on specific aspects of trauma exposure are necessary.
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19
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Boros É, Hegedűs Z, Kellermayer Z, Balogh P, Nagy I. Global alteration of colonic microRNAome landscape associated with inflammatory bowel disease. Front Immunol 2022; 13:991346. [PMID: 36177008 PMCID: PMC9513375 DOI: 10.3389/fimmu.2022.991346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) is characterized by chronic inflammation of the gastrointestinal tract that associates with, among others, increased risk of colorectal cancer. There is a growing evidence that miRNAs have important roles in pathological processes, such as inflammation or carcinogenesis. Understanding the molecular mechanisms such as alterations in microRNAome upon chronic intestinal inflammation is critical for understanding the exact pathomechanism of IBD. Hence, we conducted a genome wide microRNAome analysis by applying miRNA-Seq in a rat model of experimental colitis, validated the data by QPCR, examined the expression of a selection of precursor and mature miRNAs, performed in depth biological interpretation using Ingenuity Pathway Analysis and tested the obtained results on samples derived from human patients. We identified specific, interdependent expression pattern of activator/repressor transcription factors, miRNAs and their direct targets in the inflamed colon samples. Particularly, decreased expression of the miR-200 family members (miR-200a/b/c,-141, and -429) and miR-27b correlates with the reduced level of their enhancers (HNF1B, E2F1), elevated expression of their repressors (ZEB2, NFKB1) and increased expression of their target genes (ZEB2, RUNX1). Moreover, the marked upregulation of six miR-27b target genes (IFI16, GCA, CYP1B1, RUNX1, MEF2C and MMP13) in the inflamed colon tissues is a possible direct consequence of the lack of repression due to the downregulated miRNA-27b expression. Our data indicate that changes in microRNAome are associated with the pathophysiology of IBD, consequently, microRNAs offer potential targets for the diagnosis, prognosis and treatment of IBD.
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Affiliation(s)
- Éva Boros
- Seqomics Biotechnology Ltd., Mórahalom, Hungary
- Institute of Biochemistry, Biological Research Centre, Eötvös Loránd Research Network, Szeged, Hungary
| | - Zoltán Hegedűs
- Institute of Biophysics, Biological Research Centre, Eötvös Loránd Research Network, Szeged, Hungary
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Zoltán Kellermayer
- Department of Immunology and Biotechnology, University of Pécs, Pécs, Hungary
- Lymphoid Organogenesis Research Group, Szentágothai János Research Center, University of Pécs, Pécs, Hungary
| | - Péter Balogh
- Department of Immunology and Biotechnology, University of Pécs, Pécs, Hungary
- Lymphoid Organogenesis Research Group, Szentágothai János Research Center, University of Pécs, Pécs, Hungary
| | - István Nagy
- Seqomics Biotechnology Ltd., Mórahalom, Hungary
- Institute of Biochemistry, Biological Research Centre, Eötvös Loránd Research Network, Szeged, Hungary
- *Correspondence: István Nagy,
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20
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Antal I, Pápai Z, Szendrői M, Perlaky T, Dezső K, Lippai Z, Sápi Z. The Activation of PDGFRβ on Mononuclear Stromal/Tumor Cells in Giant Cell Tumor of Bone After Denosumab Treatment. An Immunohistochemical Study of Five Cases. Pathol Oncol Res 2022; 28:1610633. [PMID: 36091939 PMCID: PMC9448856 DOI: 10.3389/pore.2022.1610633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022]
Abstract
Due to the relatively high recurrence rate and the destructive nature of the tumor, the treatment of giant cell tumor is still a challenge. Denosumab appeared to be a promising candidate as a therapeutic drug. However, several studies have reported that tumors can recur during/after treatment with denosumab. Based on activated receptor tyrosine kinase signaling pattern of the stromal/tumor cells, a combination treatment with denosumab and sunitinib has recently been proposed to inhibit recurrences. This prompted us to investigate the PDGFRβ expression of five denosumab treated cases using both primary and recurrent tumors during and after denosumab treatment. In addition, to recognise morphological changes, immunohistochemical analysis of H3F3A and PDGFRβ was also performed. As an effect of denosumab treatment, the permanent absence of giant cells associated with severe to mild fibrosis was the most consistent morphological change, but H3F3A positive stromal/tumor cells were observed in all cases. Furthermore, an increased immunopositivity of PDGFRβ in stromal/tumor cells was evident in all recurrent cases during denosumab treatment. Upon tumor recurrence (after the discontinuation of denosumab treatment) the intensity of PDGFRβ immunostaining in stromal/tumor cells was restored/decreased. Our results confirm (for the first time) the activation of PDGFRβ on mononuclear stromal/tumor cells at protein level as an effect of denosumab treatment, which has so far only been demonstrated by phosphoprotein array analysis (protein lysates). The decreased PDGFRβ activity after the discontinuation of denosumab treatmeant and the increased PDGFRβ activity during denosumab treatment underlines the need for denosumab and sunitinib combination therapy.
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Affiliation(s)
- Imre Antal
- Department of Orthopaedics, Semmelweis University, Budapest, Hungary
| | - Zsuzsanna Pápai
- Department of Oncology, Hungarian Defence Forces Medical Center, Budapest, Hungary
| | - Miklós Szendrői
- Department of Orthopaedics, Semmelweis University, Budapest, Hungary
| | - Tamás Perlaky
- Department of Orthopaedics, Semmelweis University, Budapest, Hungary
| | - Katalin Dezső
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Zoltán Lippai
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Zoltán Sápi
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
- *Correspondence: Zoltán Sápi,
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21
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Belavilas-Trovas A, Gregoriou ME, Tastsoglou S, Soukia O, Giakountis A, Mathiopoulos K. A species-specific lncRNA modulates the reproductive ability of the asian tiger mosquito. Front Bioeng Biotechnol 2022; 10:885767. [PMID: 36091452 PMCID: PMC9448860 DOI: 10.3389/fbioe.2022.885767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/11/2022] [Indexed: 11/21/2022] Open
Abstract
Long non-coding RNA (lncRNA) research has emerged as an independent scientific field in recent years. Despite their association with critical cellular and metabolic processes in plenty of organisms, lncRNAs are still a largely unexplored area in mosquito research. We propose that they could serve as exceptional tools for pest management due to unique features they possess. These include low inter-species sequence conservation and high tissue specificity. In the present study, we investigated the role of ovary-specific lncRNAs in the reproductive ability of the Asian tiger mosquito, Aedes albopictus. Through the analysis of transcriptomic data, we identified several lncRNAs that were differentially expressed upon blood feeding; we called these genes Norma (NOn-coding RNA in Mosquito ovAries). We observed that silencing some of these Normas resulted in significant impact on mosquito fecundity and fertility. We further focused on Norma3 whose silencing resulted in 43% oviposition reduction, in smaller ovaries and 53% hatching reduction of the laid eggs, compared to anti-GFP controls. Moreover, a significant downregulation of 2 mucins withing a neighboring (∼100 Kb) mucin cluster was observed in smaller anti-Norma3 ovaries, indicating a potential mechanism of in-cis regulation between Norma3 and the mucins. Our work constitutes the first experimental proof-of-evidence connecting lncRNAs with mosquito reproduction and opens a novel path for pest management.
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Affiliation(s)
- Alexandros Belavilas-Trovas
- Laboratory of Molecular Biology and Genomics, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Maria-Eleni Gregoriou
- Laboratory of Molecular Biology and Genomics, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Spyros Tastsoglou
- DIANA-Lab, Department of Computer Science and Biomedical Informatics, University of Thessaly, Lamia, Greece
- Hellenic Pasteur Institute, Athens, Greece
| | - Olga Soukia
- Laboratory of Molecular Biology and Genomics, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Antonis Giakountis
- Laboratory of Molecular Biology and Genomics, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
| | - Kostas Mathiopoulos
- Laboratory of Molecular Biology and Genomics, Department of Biochemistry & Biotechnology, University of Thessaly, Larissa, Greece
- *Correspondence: Kostas Mathiopoulos,
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22
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Szacherska K, Moraczewski K, Czaplicki S, Oleskowicz-Popiel P, Mozejko-Ciesielska J. Effect of short- and medium-chain fatty acid mixture on polyhydroxyalkanoate production by Pseudomonas strains grown under different culture conditions. Front Bioeng Biotechnol 2022; 10:951583. [PMID: 35957637 PMCID: PMC9358023 DOI: 10.3389/fbioe.2022.951583] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Short- and medium-chain fatty acids (SMCFAs) derived from the acidogenic anaerobic mixed culture fermentation of acid whey obtained from a crude cheese production line and their synthetic mixture that simulates a real SMCFA-rich stream were evaluated for polyhydroxyalkanoate (PHA) production. Three individual Pseudomonas sp. strains showed different capabilities of growing and producing PHAs in the presence of a synthetic mixture of SMCFAs. Pseudomonas sp. GL06 exhibited the highest SMCFA tolerance and produced PHAs with the highest productivity (2.7 mg/L h). Based on these observations, this strain was selected for further investigations on PHA production in a fed-batch bioreactor with a SMCFA-rich stream extracted from the effluent. The results showed that PHA productivity reached up to 4.5 mg/L h at 24 h of fermentation together with the ammonium exhaustion in the growth medium. Moreover, the PHA monomeric composition varied with the bacterial strain and the type of the growth medium used. Furthermore, a differential scanning calorimetric and thermogravimetric analysis showed that a short- and medium-chain-length PHA copolymer made of 3-hydroxybutyric, -hexanoic, -octanoic, -decanoic, and -dodecanoic has promising properties. The ability of Pseudomonas sp. to produce tailored PHA copolymers together with the range of possible applications opens new perspectives in the development of PHA bioproduction as a part of an integrated valorization process of SMCFAs derived from waste streams.
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Affiliation(s)
- Karolina Szacherska
- Department of Microbiology and Mycology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | | | - Sylwester Czaplicki
- Department of Plant Food Chemistry and Processing, Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Piotr Oleskowicz-Popiel
- Water Supply and Bioeconomy Division, Faculty of Environmental Engineering and Energy, Poznan University of Technology, Poznan, Poland
| | - Justyna Mozejko-Ciesielska
- Department of Microbiology and Mycology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
- *Correspondence: Justyna Mozejko-Ciesielska,
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Konrat R, Papp H, Kimpel J, Rössler A, Szijártó V, Nagy G, Madai M, Zeghbib S, Kuczmog A, Lanszki Z, Gesell T, Helyes Z, Kemenesi G, Jakab F, Nagy E. The Anti-Histamine Azelastine, Identified by Computational Drug Repurposing, Inhibits Infection by Major Variants of SARS-CoV-2 in Cell Cultures and Reconstituted Human Nasal Tissue. Front Pharmacol 2022; 13:861295. [PMID: 35846988 PMCID: PMC9280057 DOI: 10.3389/fphar.2022.861295] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 06/03/2022] [Indexed: 12/22/2022] Open
Abstract
Background and purpose: The COVID-19 pandemic continues to pose challenges, especially with the emergence of new SARS-CoV-2 variants that are associated with higher infectivity and/or compromised protection afforded by the current vaccines. There is a high demand for additional preventive and therapeutic strategies effective against this changing virus. Repurposing of approved or clinically tested drugs can provide an immediate solution. Experimental Approach: We applied a novel computational approach to search among approved and commercially available drugs. Antiviral activity of a predicted drug, azelastine, was tested in vitro in SARS-CoV-2 infection assays with Vero E6 cells, Vero cells stably overexpressing the human TMPRSS2 and ACE2 proteins as well as on reconstituted human nasal tissue using the predominant variant circulating in Europe in summer 2020, B.1.177 (D614G variant), and its emerging variants of concern; B.1.1.7 (alpha), B.1.351 (beta) and B.1.617.2 (delta) variants. The effect of azelastine on viral replication was assessed by quantification of viral genomes by droplet digital PCR or qPCR. Key results: The computational approach identified major drug families, such as anti-infective, anti-inflammatory, anti-hypertensive, antihistamine, and neuroactive drugs. Based on its attractive safety profile and availability in nasal formulation, azelastine, a histamine 1 receptor-blocker was selected for experimental testing. Azelastine reduced the virus-induced cytopathic effect and SARS-CoV-2 copy numbers both in preventive and treatment settings upon infection of Vero cells with an EC50 of 2.2–6.5 µM. Comparable potency was observed with the alpha, beta and delta variants. Furthermore, five-fold dilution (containing 0.02% azelastine) of the commercially available nasal spray formulation was highly potent in inhibiting viral propagation in reconstituted human nasal tissue. Conclusion and Implications: Azelastine, an antihistamine available as nasal sprays developed against allergic rhinitis may be considered as a topical prevention or treatment of nasal colonization by SARS-CoV-2. A Phase 2 efficacy indicator study with azelastine-containing nasal spray that was designed based on the findings reported here has been concluded recently, confirming accelerated viral clearance in SARS-CoV-2 positive subjects.
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Affiliation(s)
- Robert Konrat
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria
- Calyxha Biotechnologies GmbH, Vienna, Austria
- *Correspondence: Robert Konrat, ; Eszter Nagy,
| | - Henrietta Papp
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Janine Kimpel
- Department of Hygiene, Microbiology and Public Health, Institute of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Annika Rössler
- Department of Hygiene, Microbiology and Public Health, Institute of Virology, Medical University of Innsbruck, Innsbruck, Austria
| | - Valéria Szijártó
- CEBINA (Central European Biotech Incubator and Accelerator) GmbH, Vienna, Austria
| | - Gábor Nagy
- CEBINA (Central European Biotech Incubator and Accelerator) GmbH, Vienna, Austria
| | - Mónika Madai
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Safia Zeghbib
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Anett Kuczmog
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Zsófia Lanszki
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Tanja Gesell
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Vienna, Austria
- Calyxha Biotechnologies GmbH, Vienna, Austria
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School and Szentágothai Research Centre, University of Pécs, Pécs, Hungary
| | - Gábor Kemenesi
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Ferenc Jakab
- National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Pécs, Hungary
- Institue of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Eszter Nagy
- Calyxha Biotechnologies GmbH, Vienna, Austria
- CEBINA (Central European Biotech Incubator and Accelerator) GmbH, Vienna, Austria
- *Correspondence: Robert Konrat, ; Eszter Nagy,
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Sakowska J, Arcimowicz Ł, Jankowiak M, Papak I, Markiewicz A, Dziubek K, Kurkowiak M, Kote S, Kaźmierczak-Siedlecka K, Połom K, Marek-Trzonkowska N, Trzonkowski P. Autoimmunity and Cancer-Two Sides of the Same Coin. Front Immunol 2022; 13:793234. [PMID: 35634292 PMCID: PMC9140757 DOI: 10.3389/fimmu.2022.793234] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 04/12/2022] [Indexed: 02/06/2023] Open
Abstract
Autoimmune disease results from the immune response against self-antigens, while cancer develops when the immune system does not respond to malignant cells. Thus, for years, autoimmunity and cancer have been considered as two separate fields of research that do not have a lot in common. However, the discovery of immune checkpoints and the development of anti-cancer drugs targeting PD-1 (programmed cell death receptor 1) and CTLA-4 (cytotoxic T lymphocyte antigen 4) pathways proved that studying autoimmune diseases can be extremely helpful in the development of novel anti-cancer drugs. Therefore, autoimmunity and cancer seem to be just two sides of the same coin. In the current review, we broadly discuss how various regulatory cell populations, effector molecules, genetic predisposition, and environmental factors contribute to the loss of self-tolerance in autoimmunity or tolerance induction to cancer. With the current paper, we also aim to convince the readers that the pathways involved in cancer and autoimmune disease development consist of similar molecular players working in opposite directions. Therefore, a deep understanding of the two sides of immune tolerance is crucial for the proper designing of novel and selective immunotherapies.
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Affiliation(s)
- Justyna Sakowska
- Department of Medical Immunology, Medical University of Gdańsk, Gdańsk, Poland
| | - Łukasz Arcimowicz
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Martyna Jankowiak
- Department of Medical Immunology, Medical University of Gdańsk, Gdańsk, Poland
| | - Ines Papak
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Aleksandra Markiewicz
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland
| | - Katarzyna Dziubek
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Małgorzata Kurkowiak
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Sachin Kote
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | | | - Karol Połom
- Department of Surgical Oncology, Medical University of Gdańsk, Gdańsk, Poland
| | - Natalia Marek-Trzonkowska
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
- Laboratory of Immunoregulation and Cellular Therapies, Department of Family Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Piotr Trzonkowski
- Department of Medical Immunology, Medical University of Gdańsk, Gdańsk, Poland
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Casamitjana J, Espinet E, Rovira M. Pancreatic Organoids for Regenerative Medicine and Cancer Research. Front Cell Dev Biol 2022; 10:886153. [PMID: 35592251 PMCID: PMC9110799 DOI: 10.3389/fcell.2022.886153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022] Open
Abstract
In recent years, the development of ex vivo organoid cultures has gained substantial attention as a model to study regenerative medicine and diseases in several tissues. Diabetes and pancreatic ductal adenocarcinoma (PDAC) are the two major devastating diseases affecting the pancreas. Suitable models for regenerative medicine in diabetes and to accurately study PDAC biology and treatment response are essential in the pancreatic field. Pancreatic organoids can be generated from healthy pancreas or pancreatic tumors and constitute an important translational bridge between in vitro and in vivo models. Here, we review the rapidly emerging field of pancreatic organoids and summarize the current applications of the technology to tissue regeneration, disease modelling, and drug screening.
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Affiliation(s)
- Joan Casamitjana
- Department of Physiological Science, School of Medicine, University of Barcelona (UB), L'Hospitalet de Llobregat, Barcelona, Spain
- Pancreas Regeneration: Pancreatic Progenitors and Their Niche Group, Regenerative Medicine Program, Institut D’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
- Program for Advancing the Clinical Translation of Regenerative Medicine of Catalonia (P-CMR[C]), L’Hospitalet de Llobregat, Barcelona, Spain
| | - Elisa Espinet
- Department of Pathology and Experimental Therapy, School of Medicine, University of Barcelona (UB), L’Hospitalet de Llobregat, Barcelona, Spain
- Molecular Mechanisms and Experimental Therapy in Oncology Program (Oncobell), Institut D’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
- *Correspondence: Elisa Espinet, ; Meritxell Rovira,
| | - Meritxell Rovira
- Department of Physiological Science, School of Medicine, University of Barcelona (UB), L'Hospitalet de Llobregat, Barcelona, Spain
- Pancreas Regeneration: Pancreatic Progenitors and Their Niche Group, Regenerative Medicine Program, Institut D’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
- Program for Advancing the Clinical Translation of Regenerative Medicine of Catalonia (P-CMR[C]), L’Hospitalet de Llobregat, Barcelona, Spain
- *Correspondence: Elisa Espinet, ; Meritxell Rovira,
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Weiste E, Stevanovic M, Uusitalo L. Experiential expertise in the co-development of social and health-care services: Self-promotion and self-dismissal as interactional strategies. Sociol Health Illn 2022; 44:764-780. [PMID: 35352357 PMCID: PMC9311060 DOI: 10.1111/1467-9566.13457] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 12/31/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Increasing client involvement in the development of social and health-care services has resulted in clients being invited to present their experiential knowledge in service co-development groups. Nevertheless, research has shown that their opportunities to really contribute to actual decision-making are limited. This article investigates how client representatives initiate turns-at-talk in the decision-making context and the way in which professionals respond to them. Using conversation analysis, we analyzed 15 h of recorded interactions in five co-development workshops. Our data exhibited a systematic pattern that linked client representatives' self-promoting and self-dismissive turns-at-talk to specific types of responses from professionals. When the client representatives highlighted the relevance of their experiential knowledge for making decisions, the professionals disregarded their contributions. However, if instead, the client representatives cast their experiential knowledge as irrelevant to the decision-making activity at hand, the professionals subsequently appreciated this knowledge. Thus, paradoxically, in order to establish the relevance of their views, client representatives diminished their positions as experiential experts.
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Affiliation(s)
- Elina Weiste
- Finnish Institute of Occupational HealthHelsinkiFinland
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27
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Mooses K, Camacho M, Cavallo F, Burnard MD, Dantas C, D’Onofrio G, Fernandes A, Fiorini L, Gama A, Perandrés Gómez A, Gonzalez L, Guardado D, Iqbal T, Sanchez Melero M, Melero Muñoz FJ, Moreno Muro FJ, Nijboer F, Ortet S, Rovini E, Toccafondi L, Tunc S, Taveter K. Involving Older Adults During COVID-19 Restrictions in Developing an Ecosystem Supporting Active Aging: Overview of Alternative Elicitation Methods and Common Requirements From Five European Countries. Front Psychol 2022; 13:818706. [PMID: 35295401 PMCID: PMC8918691 DOI: 10.3389/fpsyg.2022.818706] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/07/2022] [Indexed: 01/26/2023] Open
Abstract
Background Information and communication technology solutions have the potential to support active and healthy aging and improve monitoring and treatment outcomes. To make such solutions acceptable, all stakeholders must be involved in the requirements elicitation process. Due to the COVID-19 situation, alternative approaches to commonly used face-to-face methods must often be used. One aim of the current article is to share a unique experience from the Pharaon project where due to the COVID-19 outbreak alternative elicitation methods were used. In addition, an overview of common functional, quality, and emotional goals identified by six pilot sites is presented to complement the knowledge about the needs of older adults. Methods Originally planned face-to-face co-creation seminars were impossible to carry out, and all pilot sites chose alternative requirements elicitation methods that were most suitable in their situation. The elicited requirements were presented in the form of goal models. In one summary goal model, we provide an overview of common functional, quality, and emotional goals. Results Different elicitation methods were combined based on the digital literacy of the target group and their access to digital tools. Methods applied without digital technologies were phone interviews, reviews of literature and previous projects, while by means of digital technologies online interviews, online questionnaires, and (semi-)virtual co-creation seminars were conducted. The combination of the methods allowed to involve all planned stakeholders. Virtual and semi-virtual co-creation seminars created collaborative environment comparable to face-to-face situations, while online participation helped to save the time of the participants. The most prevalent functional goals elicited were “Monitor health,” “Receive advice,” “Receive information.” “Easy to use/comfortable,” “personalized/tailored,” “automatic/smart” were identified as most prevalent quality goals. Most frequently occurring emotional goals were “involved,” “empowered,” and “informed.” Conclusion There are alternative methods to face-to-face co-creation seminars, which effectively involve older adults and other stakeholders in the requirements elicitation process. Despite the used elicitation method, the requirements can be easily transformed into goal models to present the results in a uniform way. The common requirements across different pilots provided a strong foundation for representing detailed requirements and input for further software development processes.
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Affiliation(s)
- Kerli Mooses
- Institute of Computer Science, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
- *Correspondence: Kerli Mooses,
| | - Mariana Camacho
- Department of Innovation, Santa Casa da Misericórdia da Amadora (SCMA), Amadora, Portugal
| | - Filippo Cavallo
- Department of Industrial Engineering, University of Florence, Florence, Italy
| | - Michael David Burnard
- InnoRenew CoE, Izola, Slovenia
- Andrej Marušič Institute, University of Primorska, Koper, Slovenia
| | - Carina Dantas
- Cáritas Diocesana de Coimbra (CDC), Coimbra, Portugal
| | - Grazia D’Onofrio
- Complex Unit of Geriatrics, Department of Medical Sciences, Fondazione “Casa Sollievo della Sofferenza”—IRCCS, Foggia, Italy
| | - Adriano Fernandes
- Department of Innovation, Santa Casa da Misericórdia da Amadora (SCMA), Amadora, Portugal
| | - Laura Fiorini
- Department of Industrial Engineering, University of Florence, Florence, Italy
| | - Ana Gama
- Department of Innovation, Santa Casa da Misericórdia da Amadora (SCMA), Amadora, Portugal
| | | | | | | | - Tahira Iqbal
- Institute of Computer Science, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
| | - María Sanchez Melero
- Technical Research Centre of Furniture and Wood of the Region of Murcia, Yecla, Spain
| | - Francisco José Melero Muñoz
- Technical Research Centre of Furniture and Wood of the Region of Murcia, Yecla, Spain
- Telecommunication Networks Engineering Group, Technical University of Cartagena, Cartagena, Spain
| | | | - Femke Nijboer
- Biomedical Signals and Systems, University of Twente, Enschede, Netherlands
| | - Sofia Ortet
- Cáritas Diocesana de Coimbra (CDC), Coimbra, Portugal
| | - Erika Rovini
- Department of Industrial Engineering, University of Florence, Florence, Italy
| | | | - Sefora Tunc
- Biomedical Signals and Systems, University of Twente, Enschede, Netherlands
| | - Kuldar Taveter
- Institute of Computer Science, Faculty of Science and Technology, University of Tartu, Tartu, Estonia
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Sura T, Gering V, Cammann C, Hammerschmidt S, Maaß S, Seifert U, Becher D. Streptococcus pneumoniae and Influenza A Virus Co-Infection Induces Altered Polyubiquitination in A549 Cells. Front Cell Infect Microbiol 2022; 12:817532. [PMID: 35281454 PMCID: PMC8908964 DOI: 10.3389/fcimb.2022.817532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
Epithelial cells are an important line of defense within the lung. Disruption of the epithelial barrier by pathogens enables the systemic dissemination of bacteria or viruses within the host leading to severe diseases with fatal outcomes. Thus, the lung epithelium can be damaged by seasonal and pandemic influenza A viruses. Influenza A virus infection induced dysregulation of the immune system is beneficial for the dissemination of bacteria to the lower respiratory tract, causing bacterial and viral co-infection. Host cells regulate protein homeostasis and the response to different perturbances, for instance provoked by infections, by post translational modification of proteins. Aside from protein phosphorylation, ubiquitination of proteins is an essential regulatory tool in virtually every cellular process such as protein homeostasis, host immune response, cell morphology, and in clearing of cytosolic pathogens. Here, we analyzed the proteome and ubiquitinome of A549 alveolar lung epithelial cells in response to infection by either Streptococcus pneumoniae D39Δcps or influenza A virus H1N1 as well as bacterial and viral co-infection. Pneumococcal infection induced alterations in the ubiquitination of proteins involved in the organization of the actin cytoskeleton and Rho GTPases, but had minor effects on the abundance of host proteins. H1N1 infection results in an anti-viral state of A549 cells. Finally, co-infection resembled the imprints of both infecting pathogens with a minor increase in the observed alterations in protein and ubiquitination abundance.
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Affiliation(s)
- Thomas Sura
- Department of Microbial Proteomics, Institute of Microbiology, University of Greifswald, Greifswald, Germany
| | - Vanessa Gering
- Friedrich Loeffler-Institute of Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
| | - Clemens Cammann
- Friedrich Loeffler-Institute of Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
| | - Sven Hammerschmidt
- Department of Molecular Genetics and Infection Biology, Interfaculty Institute for Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Sandra Maaß
- Department of Microbial Proteomics, Institute of Microbiology, University of Greifswald, Greifswald, Germany
| | - Ulrike Seifert
- Friedrich Loeffler-Institute of Medical Microbiology-Virology, University Medicine Greifswald, Greifswald, Germany
| | - Dörte Becher
- Department of Microbial Proteomics, Institute of Microbiology, University of Greifswald, Greifswald, Germany
- *Correspondence: Dörte Becher,
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Bailey GA, Rawlings A, Torabi F, Pickrell O, Peall KJ. Adult-onset idiopathic dystonia: A national data-linkage study to determine epidemiological, social deprivation, and mortality characteristics. Eur J Neurol 2022; 29:91-104. [PMID: 34543508 PMCID: PMC9377012 DOI: 10.1111/ene.15114] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/14/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE Accurate epidemiological information is essential for the improved understanding of dystonia syndromes, as well as better provisioning of clinical services and providing context for diagnostic decision-making. Here, we determine epidemiological, social deprivation, and mortality characteristics of adult-onset idiopathic dystonia in the Welsh population. METHODS A retrospective population-based cohort study using anonymized electronic health care data in Wales was conducted to identify individuals with dystonia between 1 January 1994 and 31 December 2017. We developed a case-ascertainment algorithm to determine dystonia incidence and prevalence, as well as characterization of the dystonia cohort, based on social deprivation and mortality. RESULTS The case-ascertainment algorithm (79% sensitivity) identified 54,966 cases; of these cases, 41,660 had adult-onset idiopathic dystonia (≥20 years). Amongst the adult-onset form, the median age at diagnosis was 41 years, with males significantly older at time of diagnosis compared to females. Prevalence rates ranged from 0.02% in 1994 to 1.2% in 2017. The average annual incidence was 87.7/100,000/year, increasing from 49.9/100,000/year (1994) to 96.21/100,000/year (2017). In 2017, people with dystonia had a similar life expectancy to the Welsh population. CONCLUSIONS We have developed a case-ascertainment algorithm, supported by the introduction of a neurologist-reviewed validation cohort, providing a platform for future population-based dystonia studies. We have established robust population-level prevalence and incidence values for adult-onset idiopathic forms of dystonia, with this reflecting increasing clinical recognition and identification of causal genes. Underlying causes of death mirrored those of the general population, including circulatory disorders, respiratory disorders, cancers, and dementia.
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Affiliation(s)
- Grace A. Bailey
- Neuroscience and Mental Health Research InstituteCardiff UniversityCardiffUK
| | | | - Fatemeh Torabi
- Swansea University Medical SchoolSwanseaUK
- Health Data Research UKSwanseaUK
| | - Owen Pickrell
- Swansea University Medical SchoolSwanseaUK
- Department of NeurologyMorriston Hospital, Swansea Bay University Health BoardSwanseaUK
| | - Kathryn J. Peall
- Neuroscience and Mental Health Research InstituteCardiff UniversityCardiffUK
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Vella Bonanno P, Cassar V, Godman B. A Review of the Evidence on Attitudes, Perceived Impacts and Motivational Factors for European Member State Collaboration for Pricing and Reimbursement of Medicines: Time for the EEA Member States to Apply Their Experience and Expertise in Evidence-Based Decision Making to Their Current Pharmaceutical Policy Challenges. Front Pharmacol 2021; 12:666405. [PMID: 34867312 PMCID: PMC8633953 DOI: 10.3389/fphar.2021.666405] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 09/28/2021] [Indexed: 11/13/2022] Open
Abstract
In 2018/2019 there were a number of initiatives for collaboration between Member States in the European Economic Area (EEA) and the European Commission published a Proposal for a Regulation on Health Technology Assessment. In view of the perceived benefits from collaboration, the experiences and challenges of these collaborative initiatives and the possible implications of the proposed legislation, a study of the evidence on attitudes, perceived impacts and the motivational factors towards European Member State collaboration regarding the pricing and reimbursement of medicines was conducted. This study adopted an evidence-based management approach by Barends and Rousseau. The main findings showed that Member States differed in their motivation for collaboration for different pharmaceutical activities. Member States favoured voluntary co-operation for all activities of pricing and reimbursement except for relative effectiveness assessments where Member State authorities had divergent attitudes and prioritised activities related to the sustainability of their healthcare systems and access to medicines. Contrastingly pharmaceutical companies strongly favoured mandatory cooperation for evaluation. Member States motivation for collaboration was highly dependent on the purpose, political will, implementation climate and cultural factors. Currently, with the experiences of ongoing collaborations, following the progress of the discussion at Council, and with a number of inititatives for new pharmaceutical strategy and policy, it is proposed that Member States use their trust, expertise and knowledge of application of evidence-based decision making for pricing and reimbursement of medicines and apply it to decide the future model for Member State collaboration. The applicability of principles of evidence-based management to pharmaceutical policy can be used as a starting point.
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Affiliation(s)
- Patricia Vella Bonanno
- Department of Management, Faculty of Economics, Management and Accountancy, University of Malta, Msida, Malta
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Vincent Cassar
- Department of Management, Faculty of Economics, Management and Accountancy, University of Malta, Msida, Malta
| | - Brian Godman
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
- Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, South Africa
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia
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Abstract
Sexual conflict has extremely important consequences for various evolutionary processes including its effect on local adaptation and extinction probability during environmental change. The awareness that the intensity and dynamics of sexual conflict is highly dependent on the ecological setting of a population has grown in recent years, but much work is yet to be done. Here, we review progress in our understanding of the ecology of sexual conflict and how the environmental sensitivity of such conflict feeds back into population adaptivity and demography, which, in turn, determine a population's chances of surviving a sudden environmental change. We link two possible forms of sexual conflict - intralocus and interlocus sexual conflict - in an environmental context and identify major gaps in our knowledge. These include sexual conflict responses to fluctuating and oscillating environmental changes and its influence on the interplay between interlocus and intralocus sexual conflict, among others. We also highlight the need to move our investigations into more natural settings and to investigate sexual conflict dynamics in wild populations.
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Affiliation(s)
- Agata Plesnar‐Bielak
- Institute of Environmental Sciences, Faculty of BiologyJagiellonian Universityul. Gronostajowa 730‐387KrakówPoland
| | - Aleksandra Łukasiewicz
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandPO Box 11180101JoensuuFinland
- Evolutionary Biology Group, Faculty of BiologyAdam Mickiewicz Universityul. Uniwersytetu Poznańskiego 661‐614PoznańPoland
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Perera PCD, Szymura TH, Zając A, Chmolowska D, Szymura M. Drivers of Solidago species invasion in Central Europe-Case study in the landscape of the Carpathian Mountains and their foreground. Ecol Evol 2021; 11:12429-12444. [PMID: 34594510 PMCID: PMC8462131 DOI: 10.1002/ece3.7989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/05/2021] [Accepted: 07/17/2021] [Indexed: 12/03/2022] Open
Abstract
AIM The invasion process is a complex, context-dependent phenomenon; nevertheless, it can be described using the PAB framework. This framework encompasses the joint effect of propagule pressure (P), abiotic characteristics of the environment (A), and biotic characteristics of both the invader and recipient vegetation (B). We analyzed the effectiveness of proxies of PAB factors to explain the spatial pattern of Solidago canadensis and S. gigantea invasion using invasive species distribution models. LOCATION Carpathian Mountains and their foreground, Central Europe. METHODS The data on species presence or absence were from an atlas of neophyte distribution based on a 2 × 2 km grid, covering approximately 31,200 km2 (7,752 grid cells). Proxies of PAB factors, along with data on historical distribution of invaders, were used as explanatory variables in Boosted Regression Trees models to explain the distribution of invasive Solidago. The areas with potentially lower sampling effort were excluded from analysis based on a target species approach. RESULTS Proxies of the PAB factors helped to explain the distribution of both S. canadensis and S. gigantea. Distributions of both species were limited climatically because a mountain climate is not conducive to their growth; however, the S. canadensis distribution pattern was correlated with proxies of human pressure, whereas S. gigantea distribution was connected with environmental characteristics. The varied responses of species with regard to distance from their historical distribution sites indicated differences in their invasion drivers. MAIN CONCLUSIONS Proxies of PAB are helpful in the choice of explanatory variables as well as the ecological interpretation of species distribution models. The results underline that human activity can cause variation in the invasion of ecologically similar species.
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Affiliation(s)
| | - Tomasz H. Szymura
- Department of Ecology, Biogeochemistry and Environmental ProtectionUniversity of WrocławWrocławPoland
| | - Adam Zając
- Institute of BotanyFaculty of Biology and Earth SciencesJagiellonian University in KrakówKrakówPoland
| | - Dominika Chmolowska
- Institute of Systematics and Evolution of AnimalsPolish Academy of SciencesKrakówPoland
| | - Magdalena Szymura
- Institute of Agroecology and Plant ProductionWrocław University of Environmental and Life SciencesWrocławPoland
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Schenkel M, Treff A, Deber CM, Krainer G, Schlierf M. Heat treatment of thioredoxin fusions increases the purity of α-helical transmembrane protein constructs. Protein Sci 2021; 30:1974-1982. [PMID: 34191368 PMCID: PMC8376418 DOI: 10.1002/pro.4150] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/22/2021] [Indexed: 01/05/2023]
Abstract
Membrane proteins play key roles in cellular signaling and transport, represent the majority of drug targets, and are implicated in many diseases. Their relevance renders them important subjects for structural, biophysical, and functional investigations. However, obtaining membrane proteins in high purities is often challenging with conventional purification steps alone. To address this issue, we present here an approach to increase the purity of α-helical transmembrane proteins. Our approach exploits the Thioredoxin (Trx) tag system, which is able to confer some of its favorable properties, such as high solubility and thermostability, to its fusion partners. Using Trx fusions of transmembrane helical hairpin constructs derived from the human cystic fibrosis transmembrane conductance regulator (CFTR) and a bacterial ATP synthase, we establish conditions for the successful implementation of the selective heat treatment procedure to increase sample purity. We further examine systematically its efficacy with respect to different incubation times and temperatures using quantitative gel electrophoresis. We find that minute-timescale heat treatment of Trx-tagged fusion constructs with temperatures ranging from 50 to 90°C increases the purity of the membrane protein samples from ~60 to 98% even after affinity purification. We show that this single-step approach is even applicable in cases where regular selective heat purification from crude extracts, as reported for Trx fusions to soluble proteins, fails. Overall, our approach is easy to integrate into existing purification strategies and provides a facile route for increasing the purity of membrane protein constructs after purification by standard chromatography approaches.
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Affiliation(s)
- Mathias Schenkel
- B CUBE – Center for Molecular BioengineeringTU DresdenDresdenGermany
| | - Antoine Treff
- B CUBE – Center for Molecular BioengineeringTU DresdenDresdenGermany
| | - Charles M. Deber
- Division of Molecular Medicine, Research InstituteHospital for Sick ChildrenTorontoOntarioCanada
| | - Georg Krainer
- B CUBE – Center for Molecular BioengineeringTU DresdenDresdenGermany
- Centre for Misfolding Diseases, Yusuf Hamied Department of ChemistryUniversity of CambridgeCambridgeUK
| | - Michael Schlierf
- B CUBE – Center for Molecular BioengineeringTU DresdenDresdenGermany
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Kavaliauskienė I, Domarkienė I, Ambrozaitytė L, Barauskienė L, Meškienė R, Arasimavičius J, Irnius A, Kučinskas V. Association study of taste preference: Analysis in the Lithuanian population. Food Sci Nutr 2021; 9:4310-4321. [PMID: 34401081 PMCID: PMC8358374 DOI: 10.1002/fsn3.2401] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/05/2021] [Accepted: 05/22/2021] [Indexed: 12/20/2022] Open
Abstract
Taste has strong evolutionary basis in the sense of survival by influencing our behavior to obtain food/medicine or avoid poisoning. It is a complex trait and varies among individuals and distinct populations. We aimed to investigate the association between known genetic factors (673 SNPs) and taste preference in the Lithuanian population, as well as to determine a reasonable method for qualitative evaluation of a specific taste phenotype for further genetic analysis. Study group included individuals representing six ethnolinguistic regions of Lithuania. Case and control groups for each taste were determined according to the answers selected to the taste-specific and frequency of specific food consumption questions. Sample sizes (case/control) for each taste are as follows: sweetness (55/179), bitterness (82/208), sourness (32/259), saltiness (42/249), and umami (96/190). Genotypes were extracted from the Illumina HumanOmniExpress-12v1.1 arrays' genotyping data. Analysis was performed using PLINK v1.9. We found associations between the main known genetic factors and four taste preferences in the Lithuanian population: sweetness-genes TAS1R3, TAS1R2, and GNAT3 (three SNPs); bitterness-genes CA6 and TAS2R38 (six SNPs); sourness-genes PKD2L1, ACCN2, PKD1L3, and ACCN1 (48 SNPs); and saltiness-genes SCNN1B and TRPV1 (five SNPs). We found our questionnaire as a beneficial aid for qualitative evaluation of taste preference. This was the first initiative to analyze genetic factors related to taste preference in the Lithuanian population. Besides, this study reproduces, supports, and complements results of previous limited taste genetic studies or ones that lack comprehensive results concerning distinct (ethnic) human populations.
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Affiliation(s)
- Ingrida Kavaliauskienė
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Ingrida Domarkienė
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Laima Ambrozaitytė
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Lina Barauskienė
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Raimonda Meškienė
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Justas Arasimavičius
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Algimantas Irnius
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
| | - Vaidutis Kučinskas
- Department of Human and Medical GeneticsInstitute of Biomedical ScienceFaculty of MedicineVilnius UniversityVilniusLithuania
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Laza‐Briviesca R, Cruz‐Bermúdez A, Nadal E, Insa A, García‐Campelo MDR, Huidobro G, Dómine M, Majem M, Rodríguez‐Abreu D, Martínez‐Martí A, De Castro Carpeño J, Cobo M, López Vivanco G, Del Barco E, Bernabé Caro R, Viñolas N, Barneto Aranda I, Viteri S, Massuti B, Casarrubios M, Sierra‐Rodero B, Tarín C, García‐Grande A, Haymaker C, Wistuba II, Romero A, Franco F, Provencio M. Blood biomarkers associated to complete pathological response on NSCLC patients treated with neoadjuvant chemoimmunotherapy included in NADIM clinical trial. Clin Transl Med 2021; 11:e491. [PMID: 34323406 PMCID: PMC8288017 DOI: 10.1002/ctm2.491] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Immunotherapy is being tested in early-stage non-small cell lung cancer (NSCLC), and achieving higher rates of complete pathological responses (CPR) as compared to standard of care. Early identification of CPR patients has vital clinical implications. In this study, we focused on basal peripheral immune cells and their treatment-related changes to find biomarkers associated to CPR. METHODS Blood from 29 stage IIIA NSCLC patients participating in the NADIM trial (NCT03081689) was collected at diagnosis and post neoadjuvant treatment. More than 400 parameters of peripheral blood mononuclear cells (PBMCs) phenotype and plasma soluble factors were analyzed. RESULTS Neoadjuvant chemoimmunotherapy altered more than 150 immune parameters. At diagnosis, 11 biomarkers associated to CPR were described, with an area under the ROC curve >0.70 and p-value <.05. CPR patients had significantly higher levels of CD4+ PD-1+ cells, NKG2D, and CD56 expression on T CD56 cells, intensity of CD25 expression on CD4+ CD25hi+ cells and CD69 expression on intermediate monocytes; but lower levels of CD3+ CD56- CTLA-4+ cells, CD14++ CD16+ CTLA-4+ cells, CTLA-4 expression on T CD56 cells and lower levels of b-NGF, NT-3, and VEGF-D in plasma compared to non-CPR. Post treatment, CPR patients had significantly higher levels of CD19 expression on B cells, BCMA, 4-1BB, MCSF, and PARC and lower levels of MPIF-1 and Flt-3L in plasma compared to non-CPR. CONCLUSIONS Patients achieving CPR seem to have a distinctive peripheral blood immune status at diagnosis, even showing different immune response to treatment. These results reinforce the different biology behind CPR and non-CPR responses.
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Affiliation(s)
- Raquel Laza‐Briviesca
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
- Doctoral SchoolUniversidad Autónoma de MadridMadridSpain
| | - Alberto Cruz‐Bermúdez
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
| | - Ernest Nadal
- Institut Català d'Oncologia, L'Hospitalet De LlobregatBarcelonaSpain
| | - Amelia Insa
- Fundación INCLIVAHospital Clínico Universitario de ValenciaValenciaSpain
| | | | | | - Manuel Dómine
- Hospital Universitario Fundación Jiménez DíazMadridSpain
| | | | | | - Alex Martínez‐Martí
- Hospital Universitario e Instituto de Oncología Vall d´Hebron (VHIO)BarcelonaSpain
| | | | - Manuel Cobo
- Hospital Universitario Regional de MálagaMálagaSpain
| | | | | | | | | | | | - Santiago Viteri
- Instituto Oncológico Dr. Rosell, Hospital Universitario Quiron DexeusGrupo QuironSaludBarcelonaSpain
| | | | - Marta Casarrubios
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
- Doctoral SchoolUniversidad Autónoma de MadridMadridSpain
| | - Belén Sierra‐Rodero
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
- Doctoral SchoolUniversidad Autónoma de MadridMadridSpain
| | - Carlos Tarín
- Bioinformatics UnitInstituto de Investigación Sanitaria Puerta de Hierro‐Segovia de AranaMadridSpain
| | - Aránzazu García‐Grande
- Flow Cytometry Core FacilityInstituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)MadridSpain
| | - Cara Haymaker
- Departments of Translational Molecular PathologyThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
| | - Ignacio I. Wistuba
- Departments of Translational Molecular PathologyThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
| | - Atocha Romero
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
| | - Fernando Franco
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
| | - Mariano Provencio
- Servicio de Oncología Médica, Instituto de Investigación Sanitaria Puerta de Hierro‐Segovia de Arana (IDIPHISA)Hospital Universitario Puerta de Hierro‐MajadahondaMadridSpain
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Petkevičius V, Vaitekūnas J, Gasparavičiūtė R, Tauraitė D, Meškys R. An efficient and regioselective biocatalytic synthesis of aromatic N-oxides by using a soluble di-iron monooxygenase PmlABCDEF produced in the Pseudomonas species. Microb Biotechnol 2021; 14:1771-1783. [PMID: 34115446 PMCID: PMC8313251 DOI: 10.1111/1751-7915.13849] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/26/2021] [Accepted: 05/19/2021] [Indexed: 11/27/2022] Open
Abstract
Here, we present an improved whole-cell biocatalysis system for the synthesis of heteroaromatic N-oxides based on the production of a soluble di-iron monooxygenase PmlABCDEF in Pseudomonas sp. MIL9 and Pseudomonas putida KT2440. The presented biocatalysis system performs under environmentally benign conditions, features a straightforward and inexpensive procedure and possesses a high substrate conversion and product yield. The capacity of gram-scale production was reached in the simple shake-flask cultivation. The template substrates (pyridine, pyrazine, 2-aminopyrimidine) have been converted into pyridine-1-oxide, pyrazine-1-oxide and 2-aminopyrimidine-1-oxide in product titres of 18.0, 19.1 and 18.3 g l-1 , respectively. To our knowledge, this is the highest reported productivity of aromatic N-oxides using biocatalysis methods. Moreover, comparing to the chemical method of aromatic N-oxides synthesis based on meta-chloroperoxybenzoic acid, the developed approach is applicable for a regioselective oxidation that is an additional advantageous option in the preparation of the anticipated N-oxides.
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Affiliation(s)
- Vytautas Petkevičius
- Department of Molecular Microbiology and BiotechnologyInstitute of BiochemistryLife Sciences CenterVilnius UniversitySaulėtekio 7VilniusLT‐10257Lithuania
| | - Justas Vaitekūnas
- Department of Molecular Microbiology and BiotechnologyInstitute of BiochemistryLife Sciences CenterVilnius UniversitySaulėtekio 7VilniusLT‐10257Lithuania
| | - Renata Gasparavičiūtė
- Department of Molecular Microbiology and BiotechnologyInstitute of BiochemistryLife Sciences CenterVilnius UniversitySaulėtekio 7VilniusLT‐10257Lithuania
| | - Daiva Tauraitė
- Department of Molecular Microbiology and BiotechnologyInstitute of BiochemistryLife Sciences CenterVilnius UniversitySaulėtekio 7VilniusLT‐10257Lithuania
| | - Rolandas Meškys
- Department of Molecular Microbiology and BiotechnologyInstitute of BiochemistryLife Sciences CenterVilnius UniversitySaulėtekio 7VilniusLT‐10257Lithuania
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Köhn D, Günther A, Schwabe I, Jurasinski G. Short-lived peaks of stem methane emissions from mature black alder ( Alnus glutinosa (L.) Gaertn.) - Irrelevant for ecosystem methane budgets? Plant Environ Interact 2021; 2:16-27. [PMID: 37283846 PMCID: PMC10168070 DOI: 10.1002/pei3.10037] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/19/2020] [Accepted: 12/06/2020] [Indexed: 06/08/2023]
Abstract
Tree stems can be a source of the greenhouse gas methane (CH4). However, assessments of the global importance of stem CH4 emissions are complicated by a lack of research and high variability between individual ecosystems. Here, we determined the contribution of emissions from stems of mature black alder (Alnus glutinosa (L.) Gaertn.) to overall CH4 exchange in two temperate peatlands. We measured emissions from stems and soils using closed chambers in a drained and an undrained alder forest over 2 years. Furthermore, we studied the importance of alder leaves as substrate for methanogenesis in an incubation experiment. Stem CH4 emissions were short-lived and occurred only during times of inundation at the undrained site. The drained site did not show stem emissions and the soil acted as a small CH4 sink. The contribution of stem emissions to the overall CH4 budget was below 0.3% in both sites. Our results show that mature black alder can be an intermittent source of CH4 to the atmosphere. However, the low share of stem CH4 emissions in both investigated stands indicates that this pathway may be of minor relative importance in temperate peatlands, yet strongly depend on the hydrologic regime.
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Affiliation(s)
- Daniel Köhn
- Landscape EcologyUniversity of RostockRostockGermany
| | - Anke Günther
- Landscape EcologyUniversity of RostockRostockGermany
| | - Ines Schwabe
- Landscape EcologyUniversity of RostockRostockGermany
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