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Bizjak I, Envall N, Emtell Iwarsson K, Kopp Kallner H, Gemzell‐Danielsson K. Contraceptive uptake and compliance after structured contraceptive counseling - secondary outcomes of the LOWE trial. Acta Obstet Gynecol Scand 2024; 103:873-883. [PMID: 38351571 PMCID: PMC11019526 DOI: 10.1111/aogs.14792] [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: 09/27/2023] [Revised: 12/18/2023] [Accepted: 01/12/2024] [Indexed: 04/17/2024]
Abstract
INTRODUCTION Highly effective long-acting reversible contraceptive (LARC) methods reduce unintended pregnancy rates; however, these methods are underutilized. The LOWE trial intervention provided structured contraceptive counseling resulting in increased uptake of LARC. This longitudinal follow up of the LOWE study assessed the long-term impact of the intervention by investigating the contraceptive use at 12 months with a focus on continued use of LARC. MATERIAL AND METHODS In the cluster randomized LOWE trial, abortion, youth, and maternal health clinics were randomized to provide either structured contraceptive counseling (intervention) or standard contraceptive counseling (control). The intervention consisted of an educational video on contraceptive methods, key questions asked by the health care provider, a tiered effectiveness chart and a box of contraceptive models. Women ≥ age 18, who were sexually active or planned to be in the upcoming 6 months, could participate in the study. We assessed self-reported contraceptive use at three, six and 12 months. Contraceptive choice and switches were analyzed with descriptive statistics. Contraceptive use at 12 months and continued use of LARC were analyzed using mixed logistic regressions, with clinic included as a random effect. Analysis with imputed values were performed for missing data to test the robustness of results. RESULTS Overall, at 12 months, women in the intervention group were more likely to be using a LARC method (aOR 1.90, 95% CI: 1.31-2.76) and less likely to be using a short-acting reversible contraceptive (SARC) method (aOR 0.66, 95% CI: 0.46-0.93) compared to the control group. Women counseled at abortion (aOR 2.97, 95% CI: 1.36-6.75) and youth clinics (aOR 1.81, 95% CI: 1.08-3.03) were more likely to be using a LARC method, while no significant difference was seen in maternal health clinics (aOR 1.84, 95% CI: 0.96-3.66). Among women initiating LARC, continuation rates at 12 months did not differ between study groups (63.9% vs. 63.7%). The most common reasons for contraceptive discontinuation were wish for pregnancy, followed by irregular bleeding, and mood changes. CONCLUSIONS The LOWE trial intervention resulted in increased LARC use also at 12 months. Strategies on how to sustain LARC use needs to be further investigated.
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Affiliation(s)
- Isabella Bizjak
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Division of Gynecology and Reproductive MedicineKarolinska University HospitalStockholmSweden
| | - Niklas Envall
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Department of Clinical Sciences at Danderyd Hospital, Division of Obstetrics and GynecologyKarolinska InstitutetStockholmSweden
- School of Health and WelfareDalarna UniversityFalunSweden
| | - Karin Emtell Iwarsson
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Division of Gynecology and Reproductive MedicineKarolinska University HospitalStockholmSweden
| | - Helena Kopp Kallner
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Department of Clinical Sciences at Danderyd Hospital, Division of Obstetrics and GynecologyKarolinska InstitutetStockholmSweden
- Division of Obstetrics and GynecologyDanderyd HospitalStockholmSweden
| | - Kristina Gemzell‐Danielsson
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Division of Gynecology and Reproductive MedicineKarolinska University HospitalStockholmSweden
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Rodriguez‐Wallberg KA, Nilsson HP, Røthe EB, Zhao A, Shah PS, Acharya G. Outcomes of SARS-CoV-2 infection in early pregnancy-A systematic review and meta-analysis. Acta Obstet Gynecol Scand 2024; 103:786-798. [PMID: 38200686 PMCID: PMC11019531 DOI: 10.1111/aogs.14764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/15/2023] [Accepted: 12/06/2023] [Indexed: 01/12/2024]
Abstract
INTRODUCTION Available data on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and pregnancy outcomes mostly refer to women contracting the infection during advanced pregnancy or close to delivery. There is limited information on the association between SARS-CoV-2 infection in early pregnancy and outcomes thereof. MATERIAL AND METHODS We aimed to systematically review the maternal, fetal and neonatal outcomes following SARS-CoV-2 infection in early pregnancy, defined as <20 weeks of gestation (PROSPERO Registration 2020 CRD42020177673). Searches were carried out in PubMed, Medline, EMBASE, and Scopus databases from January 2020 until April 2023 and the WHO database of publications on coronavirus disease 2019 (COVID-19) from December 2019 to April 2023. Cohort and case-control studies on COVID-19 occurring in early pregnancy that reported data on maternal, fetal, and neonatal outcomes were included. Case reports and studies reporting only exposure to SARS-CoV-2 or not stratifying outcomes based on gestational age were excluded. Data were extracted in duplicate. Meta-analyses were conducted when appropriate, using R meta (R version 4.0.5). RESULTS A total of 18 studies, 12 retrospective and six prospective, were included in this review, reporting on 10 147 SARS-CoV-2-positive women infected in early pregnancy, 9533 neonates, and 180 882 SARS-CoV-2 negative women. The studies had low to moderate risk of bias according to the Newcastle-Ottawa quality assessment Scale. The studies showed significant clinical and methodological heterogeneity. A meta-analysis could be performed only on the outcome miscarriage rate, with a pooled random effect odds ratio of 1.44 (95% confidence interval 0.96-2.18), showing no statistical difference in miscarriage in SARS-CoV-2-infected women. Individual studies reported increased incidences of stillbirth, low birthweight and preterm birth among neonates born to mothers affected by COVID-19 in early pregnancy; however, these results were not consistent among all studies. CONCLUSIONS In this comprehensive systematic review of available evidence, we identified no statistically significant adverse association between SARS-CoV-2 infection in early pregnancy (before 20 weeks of gestation) and fetal, neonatal, or maternal outcomes. However, a 44% increase in miscarriage rate is concerning and further studies of larger sample size are needed to confirm or refute our findings.
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Affiliation(s)
- Kenny A. Rodriguez‐Wallberg
- Department of Oncology‐Pathology, Laboratory of Translational Fertility PreservationKarolinska InstitutetStockholmSweden
- Department of Reproductive Medicine, Division of Gynecology and ReproductionKarolinska University HospitalStockholmSweden
| | - Hanna P. Nilsson
- Department of Oncology‐Pathology, Laboratory of Translational Fertility PreservationKarolinska InstitutetStockholmSweden
| | - Emelie Bergman Røthe
- Department of Oncology‐Pathology, Laboratory of Translational Fertility PreservationKarolinska InstitutetStockholmSweden
| | - Allan Zhao
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
| | - Prakesh S. Shah
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
- Department of PediatricsMount Sinai Hospital and University of TorontoTorontoOntarioCanada
| | - Ganesh Acharya
- Department of Clinical Science, Intervention and TechnologyKarolinska InstitutetHuddingeSweden
- Center for Fetal MedicineKarolinska University HospitalStockholmSweden
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Correa Y, Ravel M, Imbert M, Waldie S, Clifton L, Terry A, Roosen‐Runge F, Lagerstedt JO, Moir M, Darwish T, Cárdenas M, Del Giudice R. Lipid exchange of apolipoprotein A-I amyloidogenic variants in reconstituted high-density lipoprotein with artificial membranes. Protein Sci 2024; 33:e4987. [PMID: 38607188 PMCID: PMC11010956 DOI: 10.1002/pro.4987] [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: 11/06/2023] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/13/2024]
Abstract
High-density lipoproteins (HDLs) are responsible for removing cholesterol from arterial walls, through a process known as reverse cholesterol transport. The main protein in HDL, apolipoprotein A-I (ApoA-I), is essential to this process, and changes in its sequence significantly alter HDL structure and functions. ApoA-I amyloidogenic variants, associated with a particular hereditary degenerative disease, are particularly effective at facilitating cholesterol removal, thus protecting carriers from cardiovascular disease. Thus, it is conceivable that reconstituted HDL (rHDL) formulations containing ApoA-I proteins with functional/structural features similar to those of amyloidogenic variants hold potential as a promising therapeutic approach. Here we explored the effect of protein cargo and lipid composition on the function of rHDL containing one of the ApoA-I amyloidogenic variants G26R or L174S by Fourier transformed infrared spectroscopy and neutron reflectometry. Moreover, small-angle x-ray scattering uncovered the structural and functional differences between rHDL particles, which could help to comprehend higher cholesterol efflux activity and apparent lower phospholipid (PL) affinity. Our findings indicate distinct trends in lipid exchange (removal vs. deposition) capacities of various rHDL particles, with the rHDL containing the ApoA-I amyloidogenic variants showing a markedly lower ability to remove lipids from artificial membranes compared to the rHDL containing the native protein. This effect strongly depends on the level of PL unsaturation and on the particles' ultrastructure. The study highlights the importance of the protein cargo, along with lipid composition, in shaping rHDL structure, contributing to our understanding of lipid-protein interactions and their behavior.
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Affiliation(s)
- Yubexi Correa
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
| | - Mathilde Ravel
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
| | - Marie Imbert
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
| | - Sarah Waldie
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
| | - Luke Clifton
- ISIS Pulsed Neutron and Muon Source, Science and Technology Facilities CouncilRutherford Appleton Laboratory, Harwell Science and Innovation CampusDidcotUK
| | - Ann Terry
- MAX IV LaboratoryCoSAXS Beamline, Lund UniversityLundSweden
| | - Felix Roosen‐Runge
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
| | - Jens O. Lagerstedt
- Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes CentreLund UniversityMalmöSweden
- Rare Endocrine Disorders, Research and Early DevelopmentNovo NordiskCopenhagenDenmark
| | - Michael Moir
- National Deuteration FacilityAustralian Nuclear Science and Technology Organization (ANSTO)Lucas HeightsNew South WalesAustralia
| | - Tamim Darwish
- National Deuteration FacilityAustralian Nuclear Science and Technology Organization (ANSTO)Lucas HeightsNew South WalesAustralia
- Faculty of Science and TechnologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - Marité Cárdenas
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
- Ikerbasque, Basque Foundation for ScienceBilbaoSpain
- Biofisika Institute (University of Basque Country and Consejo Superior de Investigaciones Científicas (UPV/EHU, CSIC))LeioaSpain
| | - Rita Del Giudice
- Biofilm – Research Center for Biointerfaces and Department of Biomedical Science, Faculty of Health and SocietyMalmö UniversityMalmöSweden
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Lundberg FE, Stensheim H, Ullenhag GJ, Sahlgren H, Lindemann K, Fredriksson I, Johansson ALV. Risk factors for the increasing incidence of pregnancy-associated cancer in Sweden - a population-based study. Acta Obstet Gynecol Scand 2024; 103:669-683. [PMID: 37694965 PMCID: PMC10993331 DOI: 10.1111/aogs.14677] [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: 03/02/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023]
Abstract
INTRODUCTION The incidence of cancer during pregnancy and within first year post-delivery, ie pregnancy-associated cancer (PAC), is increasing in many countries, but little is known about risk factors for these trends. This study quantified incidence of PAC by trimesters and post-delivery periods, and assessed the role of maternal age, parity, immigrant status, education, smoking and body mass index for the risk and incidence trends of PAC. MATERIAL AND METHODS We used data from the national birth and cancer registers in Sweden during 1973-2017 to define a register-based cohort of women aged 15-44 years. Incidence rates of PAC during pregnancy and up to 1 year post-delivery were calculated per 100 000 deliveries per year. Poisson regression with multiple imputation estimated incidence rate ratios with 95% confidence intervals adjusted by year, age, previous parity, immigrant status, education, smoking and BMI during 1990-2017, when information on risk factors was available. RESULTS Among 4 557 284 deliveries, a total of 1274 (during pregnancy) and 3355 (within 1 year post-delivery) cases of PAC were diagnosed, with around 50 cases/year diagnosed during pregnancy and 110 cases/year during the first year post-delivery in the latest period 2015-2017. The most common cancer types during pregnancy were malignant melanoma, breast and cervical cancer, together accounting for 57% of cases during pregnancy and 53% during the first year post-delivery. The numbers of PAC were lower during pregnancy than during post-delivery for all tumor types with lowest numbers during first trimester. The PAC incidence rates increased over calendar time. High maternal age at diagnosis, smoking, nulliparity and non-immigrant background were associated with significantly higher risks of PAC. The increasing PAC incidence was in part explained by higher maternal age over time, but not by the other factors. CONCLUSIONS High maternal age is the strongest risk factor for PAC. We show for the first time that smoking, nulliparity and non-immigrant background are also contributing risk factors for PAC. However, only high maternal age contributed significantly to the increasing incidence. Further studies on other potential risk factors for PAC are warranted, since our results indicate that age on its own does not fully explain the increase.
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Affiliation(s)
- Frida E. Lundberg
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Department of Pathology‐OncologyKarolinska InstitutetStockholmSweden
| | | | - Gustav J. Ullenhag
- Department of OncologyUppsala University HospitalUppsalaSweden
- Department of Immunology, Genetics and PathologyUppsala UniversityUppsalaSweden
| | - Hanna Milerad Sahlgren
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Department of Obstetrics and GynecologyFalun HospitalFalunSweden
- Regional Cancer Center UppsalaUppsalaSweden
| | - Kristina Lindemann
- Department of Gynecological OncologyOslo University HospitalOsloNorway
- Faculty of Medicine, Institute of Clinical MedicineUniversity of OsloNorway
| | - Irma Fredriksson
- Department of Molecular Medicine and SurgeryKarolinska InstitutetStockholmSweden
- Department of Breast, Endocrine Tumors and SarcomaKarolinska University HospitalStockholmSweden
| | - Anna L. V. Johansson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Cancer Registry of NorwayOsloNorway
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Walke G, Kumar R, Wittung‐Stafshede P. Copper ion incorporation in α-synuclein amyloids. Protein Sci 2024; 33:e4956. [PMID: 38511511 PMCID: PMC10955613 DOI: 10.1002/pro.4956] [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: 10/18/2023] [Revised: 02/01/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024]
Abstract
Copper ion dys-homeostasis is linked to neurodegenerative diseases involving amyloid formation. Even if many amyloidogenic proteins can bind copper ions as monomers, little is known about copper interactions with the resulting amyloid fibers. Here, we investigate copper interactions with α-synuclein, the amyloid-forming protein in Parkinson's disease. Copper (Cu(II)) binds tightly to monomeric α-synuclein in vitro involving the N-terminal amine and the side chain of His50. Using purified protein and biophysical methods in vitro, we reveal that copper ions are readily incorporated into the formed amyloid fibers when present at the start of aggregation reactions, and the metal ions also bind if added to pre-formed amyloids. Efficient incorporation is observed for α-synuclein variants with perturbation of either one of the high-affinity monomer copper-binding residues (i.e., N-terminus or His50) whereas a variant with both N-terminal acetylation and His50 substituted with Ala does not incorporate any copper into the amyloids. Both the morphology of the resulting α-synuclein amyloids (amyloid fiber pitch, secondary structure, proteinase sensitivity) and the copper chemical properties (redox activity, chemical potential) are altered when copper is incorporated into amyloids. We speculate that copper chelation by α-synuclein amyloids contributes to the observed copper dys-homeostasis (e.g., reduced bioavailable levels) in Parkinson's disease patients. At the same time, amyloid-copper interactions may be protective to neuronal cells as they will shield aberrantly free copper ions from promotion of toxic reactive oxygen species.
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Affiliation(s)
- Gulshan Walke
- Department of Life SciencesChalmers University of TechnologyGothenburgSweden
| | - Ranjeet Kumar
- Department of Life SciencesChalmers University of TechnologyGothenburgSweden
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Silva WTAF, Hansson M, Johansson J. Phenological evolution in annual plants under light competition, changes in the growth season and mass loss. Ecol Evol 2024; 14:e11294. [PMID: 38633520 PMCID: PMC11021803 DOI: 10.1002/ece3.11294] [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: 11/21/2023] [Revised: 03/18/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Flowering time is an important phenological trait in plants and a critical determinant of the success of pollination and fruit or seed development, with immense significance for agriculture as it directly affects crop yield and overall food production. Shifts in the growth season, changes in the growth season duration and changes in the production rate are environmental processes (potentially linked to climate change) that can lead to changes in flowering time in the long-term due to selection. In contrast, biomass loss (due to, for example, herbivory or diseases) can have profound consequences for plant mass production and food security. We model the effects of these environmental processes on the flowering time evolutionarily stable strategy (ESS) of annual plants and the potential consequences for reproductive output. Our model recapitulates previous theoretical results linked to climate change and light competition and makes novel predictions about the effects of biomass loss on the evolution of flowering time. Our analysis elucidates how both the magnitude and direction of the evolutionary response can depend on whether biomass loss occurs during the earlier vegetative phase or during the later reproductive phase and on whether or not plants are adapted to grow in dense, competitive environments. Specifically, light competition generates an asymetric effect of mass loss on flowering time even when loss is indiscriminate (equal rates), with vegetative mass loss having a stronger effect on flowering time (resulting in greater ESS change) and final reproductive output.
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Affiliation(s)
- Willian T. A. F. Silva
- Centre for Environmental and Climate ScienceLund UniversityLundSweden
- Department of Aquatic ResourcesSwedish University of Agricultural SciencesLysekilSweden
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Bianco C, Pelusi S, Margarita S, Tavaglione F, Jamialahmadi O, Malvestiti F, Periti G, Rondena J, Tomasi M, Carpani R, Ronzoni L, Vidali M, Ceriotti F, Fraquelli M, Vespasiani‐Gentilucci U, Romeo S, Prati D, Valenti L. Predictors of controlled attenuation parameter in metabolic dysfunction. United European Gastroenterol J 2024; 12:364-373. [PMID: 38141028 PMCID: PMC11017762 DOI: 10.1002/ueg2.12513] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/26/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND & AIMS Hepatic fat content can be non-invasively estimated by controlled attenuation parameter (CAP) during transient elastography. The aim of this study was to examine the determinants and predictors of CAP values in individuals with metabolic dysfunction. METHODS We enrolled 1230 consecutive apparently healthy individuals (Liver-Bible-2022 cohort) with ≥3 metabolic dysfunction features. CAP was measured by Fibroscan. CAP determinants and predictors were identified using backward stepwise analysis and introduced in generalized linear models. RESULTS Participants were predominantly males (82.9%), mean age was 53.8 ± 6.4 years, 600 (48.8%) had steatosis (CAP ≥ 275 dB/m), and 27 had liver stiffness measurement (LSM) ≥ 8 kPa. CAP values correlated with LSM (p < 10-22). In multivariable analysis, fasting insulin and abdominal circumference (AC) were the main determinants of CAP (p < 10-6), together with body mass index (BMI; p < 10-4), age, diabetes, triglycerides, ferritin, and lower HDL and thyroid stimulating hormone (TSH; p < 0.05 for all). In a subset of 592 participants with thyroid hormone measurement, we found an association between higher free triiodothyronine levels, correlating with lower TSH, and CAP values, independent of TSH and of levothyroxine treatment (p = 0.0025). A clinical CAP score based on age, BMI, AC, HbA1c, ALT, and HDL predicted CAP ≥ 275 dB/m with moderate accuracy (AUROC = 0.73), which was better than that of the Fatty Liver Index and of ALT (AUROC = 0.70/0.61, respectively) and validated it in multiple cohorts. CONCLUSION Abdominal adiposity and insulin resistance severity were the main determinants of CAP in individuals with metabolic dysfunction and may improve steatotic liver disease risk stratification. CAP values were modulated by the hypophysis-thyroid axis.
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Affiliation(s)
- Cristiana Bianco
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Serena Pelusi
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Sara Margarita
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Federica Tavaglione
- Clinical Medicine and Hepatology UnitDepartment of Internal Medicine and GeriatricsFondazione Policlinico Campus Bio‐MedicoRomeItaly
- Department of Medicine and SurgeryUniversità Campus Bio‐Medico di RomaRomeItaly
| | - Oveis Jamialahmadi
- Department of Molecular and Clinical MedicineInstitute of MedicineSahlgrenska AcademyWallenberg LaboratoryUniversity of GothenburgGothenburgSweden
| | - Francesco Malvestiti
- Department of Pathophysiology and TransplantationUniversità degli Studi di MilanoMilanItaly
| | - Giulia Periti
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Jessica Rondena
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Melissa Tomasi
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Rossana Carpani
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Luisa Ronzoni
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Matteo Vidali
- Clinical Chemistry Unit and Laboratory MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Ferruccio Ceriotti
- Clinical Chemistry Unit and Laboratory MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Mirella Fraquelli
- Gastroenterology and Endoscopy UnitFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Umberto Vespasiani‐Gentilucci
- Clinical Medicine and Hepatology UnitDepartment of Internal Medicine and GeriatricsFondazione Policlinico Campus Bio‐MedicoRomeItaly
- Department of Medicine and SurgeryUniversità Campus Bio‐Medico di RomaRomeItaly
| | - Stefano Romeo
- Department of Molecular and Clinical MedicineInstitute of MedicineSahlgrenska AcademyWallenberg LaboratoryUniversity of GothenburgGothenburgSweden
- Clinical Nutrition UnitDepartment of Medical and Surgical SciencesUniversity Magna GraeciaCatanzaroItaly
- Cardiology DepartmentSahlgrenska University HospitalGothenburgSweden
| | - Daniele Prati
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | - Luca Valenti
- Precision Medicine LabBiological Resource Center and Department of Transfusion MedicineFondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Pathophysiology and TransplantationUniversità degli Studi di MilanoMilanItaly
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Lundberg FE, Gkekos L, Rodriguez‐Wallberg KA, Fredriksson I, Johansson ALV. Risk of obstetric and perinatal complications in women presenting with breast cancer during pregnancy and the first year postpartum in Sweden 1973-2017: A population-based matched study. Acta Obstet Gynecol Scand 2024; 103:684-694. [PMID: 36959086 PMCID: PMC10993363 DOI: 10.1111/aogs.14555] [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: 11/29/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/25/2023]
Abstract
INTRODUCTION For women presenting with breast cancer during pregnancy, treatment guidelines were historically restricted to only surgical treatment. Over the past decades, chemotherapy administered during pregnancy has been gradually introduced. Although breast cancer treatments during ongoing pregnancy have been deemed safe, detailed information on potential obstetric risks is lacking. We aimed to assess the risk of adverse obstetric and perinatal outcomes of breast cancer in pregnancy and within 1 year postpartum and in relation to trimester at breast cancer diagnosis, tumor stage, and cancer treatment during pregnancy. MATERIAL AND METHODS Population-based matched study. Women diagnosed with breast cancer during pregnancy in 1973-2017 were identified in the Swedish Cancer Register and the Medical Birth Register, with additional information from the National Quality Register for Breast Cancer. Each birth with maternal breast cancer (n = 208 pregnant, n = 672 postpartum) was matched by age, calendar year, and birth order to 10 unexposed births from cancer-free women in the population (n = 2080 and n = 6720). Adjusted conditional logistic and multinomial regression models were used to estimate odds ratios and relative risk ratios, commonly denoted relative risks (RR) with 95% confidence intervals (CI), of adverse obstetric and perinatal outcomes. RESULTS Breast cancer during pregnancy was associated with higher risks of preterm birth, both planned (RR 67.1, 95% CI 33.2-135.6) and spontaneous preterm birth (RR 3.8, 95% CI 2.0-7.5), and low birthweight (<2500 g: RR 7.5, 95% CI 4.9-11.3). The associated risks were higher if the breast cancer was diagnosed in the second trimester, and of similar magnitude irrespective of stage and treatment groups. There was a higher risk of low birthweight for gestational age (<25th centile) if breast cancer was diagnosed in the first trimester (RR 2.8, 95% CI 1.1-7.3). Risks of other pregnancy complications were similar to those of unexposed women, as were risks of neonatal mortality and malformations. Postpartum breast cancer was only associated with bleeding during pregnancy (RR 1.6, 95% CI 1.0-2.8). CONCLUSIONS Preterm birth and related adverse outcomes were more common in women diagnosed with breast cancer during pregnancy. Reassuringly, breast cancer was not associated with other maternal pregnancy complications or adverse outcomes in children.
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Affiliation(s)
- Frida E. Lundberg
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Department of Oncology‐PathologyKarolinska InstitutetStockholmSweden
| | - Leo Gkekos
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Kenny A. Rodriguez‐Wallberg
- Department of Oncology‐PathologyKarolinska InstitutetStockholmSweden
- Department of Reproductive Medicine, Division of Gynecology and ReproductionKarolinska University HospitalStockholmSweden
| | - Irma Fredriksson
- Department of Molecular Medicine and SurgeryKarolinska InstitutetStockholmSweden
- Department of Breast, Endocrine Tumors and SarcomaKarolinska University HospitalStockholmSweden
| | - Anna L. V. Johansson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Cancer Registry of NorwayOsloNorway
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9
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Ahmadi S, Ambite I, Brisuda A, Háček J, Haq F, Sabari S, Vanarsa K, Mohan C, Babjuk M, Svanborg C. Similar immune responses to alpha1-oleate and Bacillus Calmette-Guérin treatment in patients with bladder cancer. Cancer Med 2024; 13:e7091. [PMID: 38553868 PMCID: PMC10980842 DOI: 10.1002/cam4.7091] [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: 12/07/2023] [Revised: 02/19/2024] [Accepted: 02/28/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND The molecular content of urine is defined by filtration in the kidneys and by local release from tissues lining the urinary tract. Pathological processes and different therapies change the molecular composition of urine and a variety of markers have been analyzed in patients with bladder cancer. The response to BCG immunotherapy and chemotherapy has been extensively studied and elevated urine concentrations of IL-1RA, IFN-α, IFN-γ TNF-α, and IL-17 have been associated with improved outcome. METHODS In this study, the host response to intravesical alpha 1-oleate treatment was characterized in patients with non-muscle invasive bladder cancer by proteomic and transcriptomic analysis. RESULTS Proteomic profiling detected a significant increase in multiple cytokines in the treatment group compared to placebo. The innate immune response was strongly activated, including IL-1RA and pro-inflammatory cytokines in the IL-1 family (IL-1α, IL-1β, IL-33), chemokines (MIP-1α, IL-8), and interferons (IFN-α2, IFN-γ). Adaptive immune mediators included IL-12, Granzyme B, CD40, PD-L1, and IL-17D, suggesting broad effects of alpha 1-oleate treatment on the tumor tissues. CONCLUSIONS The cytokine response profile in alpha 1-oleate treated patients was similar to that reported in BCG treated patients, suggesting a significant overlap. A reduction in protein levels at the end of treatment coincided with inhibition of cancer-related gene expression in tissue biopsies, consistent with a positive treatment effect. Thus, in addition to killing tumor cells and inducing cell detachment, alpha 1-oleate is shown to activate a broad immune response with a protective potential.
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Affiliation(s)
- Shahram Ahmadi
- Division of Microbiology, Immunology and Glycobiology, Department of Laboratory Medicine, Faculty of MedicineLund UniversityLundSweden
| | - Ines Ambite
- Division of Microbiology, Immunology and Glycobiology, Department of Laboratory Medicine, Faculty of MedicineLund UniversityLundSweden
| | - Antonín Brisuda
- Department of UrologyMotol University Hospital, 2nd Faculty of Medicine, Charles University PrahaPragueCzech Republic
| | - Jaromír Háček
- Department of Pathology and Molecular MedicineMotol University Hospital, 2nd Faculty of Medicine, Charles University PrahaPragueCzech Republic
| | - Farhan Haq
- Division of Microbiology, Immunology and Glycobiology, Department of Laboratory Medicine, Faculty of MedicineLund UniversityLundSweden
| | - Samudra Sabari
- Division of Microbiology, Immunology and Glycobiology, Department of Laboratory Medicine, Faculty of MedicineLund UniversityLundSweden
| | - Kamala Vanarsa
- Department of Biomedical EngineeringUniversity of HoustonHoustonTexasUSA
| | - Chandra Mohan
- Department of Biomedical EngineeringUniversity of HoustonHoustonTexasUSA
| | - Marek Babjuk
- Department of UrologyMotol University Hospital, 2nd Faculty of Medicine, Charles University PrahaPragueCzech Republic
| | - Catharina Svanborg
- Division of Microbiology, Immunology and Glycobiology, Department of Laboratory Medicine, Faculty of MedicineLund UniversityLundSweden
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10
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Gonzalez‐Molina J, Hahn P, Falcão RM, Gultekin O, Kokaraki G, Zanfagnin V, Braz Petta T, Lehti K, Carlson JW. MMP14 expression and collagen remodelling support uterine leiomyosarcoma aggressiveness. Mol Oncol 2024; 18:850-865. [PMID: 37078535 PMCID: PMC10994236 DOI: 10.1002/1878-0261.13440] [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: 08/09/2022] [Revised: 03/14/2023] [Accepted: 04/18/2023] [Indexed: 04/21/2023] Open
Abstract
Fibrillar collagen deposition, stiffness and downstream signalling support the development of leiomyomas (LMs), common benign mesenchymal tumours of the uterus, and are associated with aggressiveness in multiple carcinomas. Compared with epithelial carcinomas, however, the impact of fibrillar collagens on malignant mesenchymal tumours, including uterine leiomyosarcoma (uLMS), remains elusive. In this study, we analyse the network morphology and density of fibrillar collagens combined with the gene expression within uLMS, LM and normal myometrium (MM). We find that, in contrast to LM, uLMS tumours present low collagen density and increased expression of collagen-remodelling genes, features associated with tumour aggressiveness. Using collagen-based 3D matrices, we show that matrix metalloproteinase-14 (MMP14), a central protein with collagen-remodelling functions that is particularly overexpressed in uLMS, supports uLMS cell proliferation. In addition, we find that, unlike MM and LM cells, uLMS proliferation and migration are less sensitive to changes in collagen substrate stiffness. We demonstrate that uLMS cell growth in low-stiffness substrates is sustained by an enhanced basal yes-associated protein 1 (YAP) activity. Altogether, our results indicate that uLMS cells acquire increased collagen remodelling capabilities and are adapted to grow and migrate in low collagen and soft microenvironments. These results further suggest that matrix remodelling and YAP are potential therapeutic targets for this deadly disease.
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Affiliation(s)
- Jordi Gonzalez‐Molina
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
- Department of Oncology‐PathologyKarolinska InstitutetStockholmSweden
| | - Paula Hahn
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Raul Maia Falcão
- Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA
- Department of Cellular Biology and GeneticsFederal University of Rio Grande do NorteNatalBrazil
| | - Okan Gultekin
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
| | - Georgia Kokaraki
- Department of Oncology‐PathologyKarolinska InstitutetStockholmSweden
- Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA
| | | | - Tirzah Braz Petta
- Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA
- Department of Cellular Biology and GeneticsFederal University of Rio Grande do NorteNatalBrazil
| | - Kaisa Lehti
- Department of Microbiology, Tumor and Cell BiologyKarolinska InstitutetStockholmSweden
- Department of Biomedical Laboratory ScienceNorwegian University of Science and TechnologyTrondheimNorway
| | - Joseph W. Carlson
- Department of Oncology‐PathologyKarolinska InstitutetStockholmSweden
- Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA
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11
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Naseri S, Cordova MM, Wenthe J, Lövgren T, Eriksson E, Loskog A, Ullenhag GJ. CD40 stimulation via CD40 ligand enhances adenovirus-mediated tumour immunogenicity including 'find-me', 'eat-me', and 'kill-me' signalling. J Cell Mol Med 2024; 28:e18162. [PMID: 38494863 PMCID: PMC10945091 DOI: 10.1111/jcmm.18162] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/06/2023] [Accepted: 01/12/2024] [Indexed: 03/19/2024] Open
Abstract
Immunostimulatory gene therapy using oncolytic viruses is currently evaluated as a promising therapy for cancer aiming to induce anti-tumour immunity. Here, we investigate the capacity of oncolytic adenoviruses (LOAd) and their transgenes to induce immunogenicity in the infected tumour cells. Oncolysis and death-related markers were assessed after infection of eight human solid cancer cell lines with different LOAd viruses expressing a trimerized, membrane-bound (TMZ)-CD40L, TMZ-CD40L and 41BBL, or no transgenes. The viruses induced transgene expression post infection before they were killed by oncolysis. Death receptors TRAIL-R1, TRAIL-R2 and Fas as well as immunogenic cell death marker calreticulin were upregulated in cell lines post infection. Similarly, caspase 3/7 activity was increased in most cell lines. Interestingly, in CD40+ cell lines there was a significant effect of the TMZ-CD40L-encoding viruses indicating activation of the CD40-mediated apoptosis pathway. Further, these cell lines showed a significant increase of calreticulin, and TRAIL receptor 1 and 2 post infection. However, LOAd viruses induced PD-L1 upregulation which may hamper anti-tumour immune responses. In conclusion, LOAd infection increased the immunogenicity of infected tumour cells and this was potentiated by CD40 stimulation. Due to the simultaneous PD-L1 increase, LOAd viruses may benefit from combination with antibodies blocking PD1/PD-L1.
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Affiliation(s)
- Sedigheh Naseri
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
| | - Mariela Mejia Cordova
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
| | - Jessica Wenthe
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
| | - Tanja Lövgren
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
| | - Emma Eriksson
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
- Lokon Pharma ABUppsalaSweden
| | - Angelica Loskog
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
- Lokon Pharma ABUppsalaSweden
| | - Gustav J. Ullenhag
- Department of Immunology, Genetics and Pathology (IGP), Science for Life LaboratoriesUppsala UniversityUppsalaSweden
- Department of OncologyUppsala University HospitalUppsalaSweden
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12
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Franciskovic E, Thörnqvist L, Greiff L, Gasset M, Ohlin M. Linear epitopes of bony fish β-parvalbumins. Front Immunol 2024; 15:1293793. [PMID: 38504976 PMCID: PMC10948427 DOI: 10.3389/fimmu.2024.1293793] [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: 09/13/2023] [Accepted: 02/13/2024] [Indexed: 03/21/2024] Open
Abstract
Introduction Fish β-parvalbumins are common targets of allergy-causing immunity. The nature of antibody responses to such allergens determines the biological outcome following exposure to fish. Specific epitopes on these allergens recognised by antibodies are incompletely characterised. Methods High-content peptide microarrays offer a solution to the identification of linear epitopes recognised by antibodies. We characterized IgG and IgG4 recognition of linear epitopes of fish β-parvalbumins defined in the WHO/IUIS allergen database as such responses hold the potential to counter an allergic reaction to these allergens. Peripheral blood samples, collected over three years, of 15 atopic but not fish-allergic subjects were investigated using a microarray platform that carried every possible 16-mer peptide of known isoforms and isoallergens of these and other allergens. Results Interindividual differences in epitope recognition patterns were observed. In contrast, reactivity patterns in a given individual were by comparison more stable during the 3 years-course of the study. Nevertheless, evidence of the induction of novel specificities over time was identified across multiple regions of the allergens. Particularly reactive epitopes were identified in the D helix of Cyp c 1 and in the C-terminus of Gad c 1 and Gad m 1.02. Residues important for the recognition of certain linear epitopes were identified. Patterns of differential recognition of isoallergens were observed in some subjects. Conclusions Altogether, comprehensive analysis of antibody recognition of linear epitopes of multiple allergens enables characterisation of the nature of the antibody responses targeting this important set of food allergens.
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Affiliation(s)
| | | | - Lennart Greiff
- Department of Otorhinolaryngology, Head & Neck Surgery, Skåne University Hospital, Lund, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Maria Gasset
- Institute of Physical-Chemistry Blas Cabrera, Spanish National Research Council, Madrid, Spain
| | - Mats Ohlin
- Department of Immunotechnology, Lund University, Lund, Sweden
- SciLifeLab, Lund University, Lund, Sweden
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13
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Matlaga D, Lammerant R, Hogan JA, Uriarte M, Rodriguez‐Valle C, Zimmerman JK, Muscarella R. Survival, growth, and functional traits of tropical wet forest tree seedlings across an experimental soil moisture gradient in Puerto Rico. Ecol Evol 2024; 14:e11095. [PMID: 38505185 PMCID: PMC10950389 DOI: 10.1002/ece3.11095] [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: 09/28/2023] [Revised: 01/29/2024] [Accepted: 02/19/2024] [Indexed: 03/21/2024] Open
Abstract
Droughts are predicted to become more frequent and intense in many tropical regions, which may cause shifts in plant community composition. Especially in diverse tropical communities, understanding how traits mediate demographic responses to drought can help provide insight into the effects of climate change on these ecosystems. To understand tropical tree responses to reduced soil moisture, we grew seedlings of eight species across an experimental soil moisture gradient at the Luquillo Experimental Forest, Puerto Rico. We quantified survival and growth over an 8-month period and characterized demographic responses in terms of tolerance to low soil moisture-defined as survival and growth rates under low soil moisture conditions-and sensitivity to variation in soil moisture-defined as more pronounced changes in demographic rates across the observed range of soil moisture. We then compared demographic responses with interspecific variation in a suite of 11 (root, stem, and leaf) functional traits, measured on individuals that survived the experiment. Lower soil moisture was associated with reduced survival and growth but traits mediated species-specific responses. Species with relatively conservative traits (e.g., high leaf mass per area), had higher survival at low soil moisture whereas species with more extensive root systems were more sensitive to soil moisture, in that they exhibited more pronounced changes in growth across the experimental soil moisture gradient. Our results suggest that increasing drought will favor species with more conservative traits that confer greater survival in low soil moisture conditions.
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Affiliation(s)
- David Matlaga
- Department of BiologySusquehanna UniversitySelinsgrovePennsylvaniaUSA
| | - Roel Lammerant
- Plant Ecology and EvolutionUppsala UniversityUppsalaSweden
- Tvärminne Zoological StationUniversity of HelsinkiHankoFinland
| | - J. Aaron Hogan
- Department of BiologyUniversity of FloridaGainesvilleFloridaUSA
| | - María Uriarte
- Department of Ecology, Evolution and Environmental BiologyColumbia UniversityNew YorkNew YorkUSA
| | - Celimar Rodriguez‐Valle
- Department of Environmental SciencesUniversity of Puerto Rico‐Rio PiedrasSan JuanPuerto RicoUSA
| | - Jess K. Zimmerman
- Department of Environmental SciencesUniversity of Puerto Rico‐Rio PiedrasSan JuanPuerto RicoUSA
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14
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Adroit B, Hazra T, Denk T, Kumar Sarkar S, Khan MA. Rich specialized insect damage on Pliocene leaves from the Mahuadanr Valley (India) growing under a warm climate with weak seasonality. Ecol Evol 2024; 14:e11114. [PMID: 38469042 PMCID: PMC10927363 DOI: 10.1002/ece3.11114] [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: 08/29/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/13/2024] Open
Abstract
Plant-insect interactions play a crucial role in shaping terrestrial ecosystems, influencing abundance and distribution of plant species. In the present study, we investigated leaf-mining patterns on fossil leaves from Pliocene strata of the Mahuadanr Valley, Jharkhand, eastern India, deposited under a seasonal tropical climate, and reported complex interactions between plants and insects. We identified 11 distinct mining morphotypes. These morphotypes were mainly found on Dipterocarpaceae, Fabaceae, Lauraceae, and Moraceae; similar mining traces were also observed in the contemporary vegetation surrounding the fossil site. Although mining richness was relatively high, only 2.6% of all leaves in the fossil assemblage were mined. We compared mining richness and abundance values with previously reported values for galling. While richness was slightly lower for galling, almost 50% of all fossil leaves were galled. A literature survey on mining and galling patterns in modern vegetation suggests that there is no global explanation for richness of mining or gall-inducing insects. Thus, low nutrient availability in the ancient forest, dominance of semideciduous leaves with hard texture, and different habitats in the same forest ecosystem, such as well-drained forests and riparian stands, may all have favored different types of specialized plant-insect interactions.
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Affiliation(s)
- Benjamin Adroit
- Department of PalaeobiologySwedish Museum of Natural HistoryStockholmSweden
- IMBE, Aix Marseille Univ, Avignon Univ, CNRS, IRDMarseilleFrance
| | - Taposhi Hazra
- Palaeobotany‐Palynology Laboratory, Department of BotanySidho‐Kanho‐Birsha UniversityPuruliaIndia
| | - Thomas Denk
- Department of PalaeobiologySwedish Museum of Natural HistoryStockholmSweden
| | - Subhankar Kumar Sarkar
- Entomology Laboratory, Department of ZoologyUniversity of KalyaniKalyani, NadiaWest BengalIndia
| | - Mahasin Ali Khan
- Palaeobotany‐Palynology Laboratory, Department of BotanySidho‐Kanho‐Birsha UniversityPuruliaIndia
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15
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Borrego–Écija S, Pérez‐Millan A, Antonell A, Fort‐Aznar L, Kaya‐Tilki E, León‐Halcón A, Lladó A, Molina‐Porcel L, Balasa M, Juncà‐Parella J, Vitorica J, Venero JL, Deierborg T, Boza‐Serrano A, Sánchez‐Valle R. Galectin-3 is upregulated in frontotemporal dementia patients with subtype specificity. Alzheimers Dement 2024; 20:1515-1526. [PMID: 38018380 PMCID: PMC10984429 DOI: 10.1002/alz.13536] [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: 06/26/2023] [Revised: 10/04/2023] [Accepted: 10/11/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION Neuroinflammation is a major contributor to the progression of frontotemporal dementia (FTD). Galectin-3 (Gal-3), a microglial activation regulator, holds promise as a therapeutic target and potential biomarker. Our study aimed to investigate Gal-3 levels in patients with FTD and assess its diagnostic potential. METHODS We examined Gal-3 levels in brain, serum, and cerebrospinal fluid (CSF) samples of patients with FTD and controls. Multiple linear regressions between Gal-3 levels and other FTD markers were explored. RESULTS Gal-3 levels were increased significantly in patients with FTD, mainly across brain tissue and CSF, compared to controls. Remarkably, Gal-3 levels were higher in cases with tau pathology than TAR-DNA Binding Protein 43 (TDP-43) pathology. Only MAPT mutation carriers displayed increased Gal-3 levels in CSF samples, which correlated with total tau and 14-3-3. DISCUSSION Our findings underscore the potential of Gal-3 as a diagnostic marker for FTD, particularly in MAPT cases, and highlights the relation of Gal-3 with neuronal injury markers.
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Affiliation(s)
- Sergi Borrego–Écija
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Agnès Pérez‐Millan
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
- Institut of Neurosciences. Faculty of Medicine and Medical SciencesUniversity of BarcelonaBarcelonaSpain
| | - Anna Antonell
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Laura Fort‐Aznar
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Elif Kaya‐Tilki
- Departamento de Bioquímica y Biología Molecular, Facultad de FarmaciaUniversidad de Sevilla, Sevilla, SpainSevillaSpain
| | - Alberto León‐Halcón
- Departamento de Bioquímica y Biología Molecular, Facultad de FarmaciaUniversidad de Sevilla, Sevilla, SpainSevillaSpain
- Instituto de Biomedicina de SevillaIBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain
| | - Albert Lladó
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
- Institut of Neurosciences. Faculty of Medicine and Medical SciencesUniversity of BarcelonaBarcelonaSpain
| | - Laura Molina‐Porcel
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Mircea Balasa
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Jordi Juncà‐Parella
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
| | - Javier Vitorica
- Departamento de Bioquímica y Biología Molecular, Facultad de FarmaciaUniversidad de Sevilla, Sevilla, SpainSevillaSpain
- Instituto de Biomedicina de SevillaIBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain
| | - Jose Luis Venero
- Departamento de Bioquímica y Biología Molecular, Facultad de FarmaciaUniversidad de Sevilla, Sevilla, SpainSevillaSpain
- Instituto de Biomedicina de SevillaIBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain
| | - Tomas Deierborg
- Department of Experimental Medical Sciences, Experimental Neuroinflammatory LabLund UniversityLundSweden
| | - Antonio Boza‐Serrano
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
- Departamento de Bioquímica y Biología Molecular, Facultad de FarmaciaUniversidad de Sevilla, Sevilla, SpainSevillaSpain
- Instituto de Biomedicina de SevillaIBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain
| | - Raquel Sánchez‐Valle
- Alzheimer's disease and other cognitive disorders Unit. Service of Neurology, Fundació Recerca Clínic Barcelona‐IDIBAPSHospital Clínic de BarcelonaBarcelonaSpain
- Institut of Neurosciences. Faculty of Medicine and Medical SciencesUniversity of BarcelonaBarcelonaSpain
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16
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Iakunkov A, Lienert U, Sun J, Talyzin AV. Swelling of Ti 3 C 2 T x MXene in Water and Methanol at Extreme Pressure Conditions. Adv Sci (Weinh) 2024; 11:e2307067. [PMID: 38095537 PMCID: PMC10916643 DOI: 10.1002/advs.202307067] [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] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/05/2023] [Indexed: 03/07/2024]
Abstract
Pressure-induced swelling has been reported earlier for several hydrophilic layered materials. MXene Ti3C2Tx is also a hydrophilic layered material composed by 2D sheets but so far pressure-induced swelling is reported for this material only under conditions of shear stress at MPa pressures. Here, high-pressure experiments are performed with MXenes prepared by two methods known to provide "clay-like" materials. MXene synthesized by etching MAX phase with HCl+LiF demonstrates the effect of pressure-induced swelling at 0.2 GPa with the insertion of additional water layer. The transition is incomplete with two swollen phases (ambient with d(001) = 16.7Å and pressure-induced with d(001) = 19.2Å at 0.2 GPa) co-existing up to the pressure point of water solidification. Therefore, the swelling transition corresponds to change from two-layer water intercalation (2L-phase) to a never previously observed three-layer water intercalation (3L-phase) of MXene. Experiments with MXene prepared by LiCl+HF etching have not revealed pressure-induced swelling in liquid water. Both MXenes also show no anomalous compressibility in liquid methanol. The presence of pressure-induced swelling only in one of the MXenes indicates that the HCl+LiF synthesis method is likely to result in higher abundance of hydrophilic functional groups terminating 2D titanium carbide.
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Affiliation(s)
| | | | - Jinhua Sun
- Department of Industrial and Materials ScienceChalmers University of TechnologyGöteborgSE‐412 96Sweden
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17
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Yehorova D, Crean RM, Kasson PM, Kamerlin SCL. Key interaction networks: Identifying evolutionarily conserved non-covalent interaction networks across protein families. Protein Sci 2024; 33:e4911. [PMID: 38358258 PMCID: PMC10868456 DOI: 10.1002/pro.4911] [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: 11/03/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 02/16/2024]
Abstract
Protein structure (and thus function) is dictated by non-covalent interaction networks. These can be highly evolutionarily conserved across protein families, the members of which can diverge in sequence and evolutionary history. Here we present KIN, a tool to identify and analyze conserved non-covalent interaction networks across evolutionarily related groups of proteins. KIN is available for download under a GNU General Public License, version 2, from https://www.github.com/kamerlinlab/KIN. KIN can operate on experimentally determined structures, predicted structures, or molecular dynamics trajectories, providing insight into both conserved and missing interactions across evolutionarily related proteins. This provides useful insight both into protein evolution, as well as a tool that can be exploited for protein engineering efforts. As a showcase system, we demonstrate applications of this tool to understanding the evolutionary-relevant conserved interaction networks across the class A β-lactamases.
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Affiliation(s)
- Dariia Yehorova
- School of Chemistry and Biochemistry, Georgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Rory M. Crean
- Department of Chemistry—BMCUppsala UniversityUppsalaSweden
| | - Peter M. Kasson
- Department of Molecular PhysiologyUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department Biomedical EngineeringUniversity of VirginiaCharlottesvilleVirginiaUSA
- Department of Cell and Molecular BiologyUppsala UniversityUppsalaSweden
| | - Shina C. L. Kamerlin
- School of Chemistry and Biochemistry, Georgia Institute of TechnologyAtlantaGeorgiaUSA
- Department of Chemistry—BMCUppsala UniversityUppsalaSweden
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18
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Doobary S, Di Tommaso EM, Postole A, Inge AK, Olofsson B. Structure-reactivity analysis of novel hypervalent iodine reagents in S-vinylation of thiols. Front Chem 2024; 12:1376948. [PMID: 38487782 PMCID: PMC10937425 DOI: 10.3389/fchem.2024.1376948] [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: 01/26/2024] [Accepted: 02/19/2024] [Indexed: 03/17/2024] Open
Abstract
The transition-metal free S-vinylation of thiophenols by vinylbenziodoxolones (VBX) constituted an important step forward in hypervalent iodine-mediated vinylations, highlighting the difference to vinyliodonium salts and that the reaction outcome was influenced by the substitution pattern of the benziodoxolone core. In this study, we report several new classes of hypervalent iodine vinylation reagents; vinylbenziodazolones, vinylbenziodoxolonimine and vinyliodoxathiole dioxides. Their synthesis, structural and electronic properties are described and correlated to the S-vinylation outcome, shedding light on some interesting facets of these reagents.
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Affiliation(s)
- Sayad Doobary
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | | | - Alexandru Postole
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | - A. Ken Inge
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
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Wang T, Li M, Gu Z, Qu C, Segervald J, Salh R, Wågberg T, Wang J, Kou W. Fluoride releasing in polymer blends of poly(ethylene oxide) and poly(methyl methacrylate). Front Chem 2024; 12:1356029. [PMID: 38406557 PMCID: PMC10884178 DOI: 10.3389/fchem.2024.1356029] [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: 12/14/2023] [Accepted: 01/26/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction: Polymethyl methacrylate is a polymer commonly used in clinical dentistry, including denture bases, occlusal splints and orthodontic retainers. Methods: To augment the polymethyl methacrylate-based dental appliances in counteracting dental caries, we designed a polymer blend film composed of polymethyl methacrylate and polyethylene oxide by solution casting and added sodium fluoride. Results: Polyethylene oxide facilitated the dispersion of sodium fluoride, decreased the surface average roughness, and positively influenced the hydrophilicity of the films. The blend film made of polymethyl methacrylate, polyethylene oxide and NaF with a mass ratio of 10: 1: 0.3 showed sustained release of fluoride ions and acceptable cytotoxicity. Antibacterial activity of all the films to Streptococcus mutans was negligible. Discussion: This study demonstrated that the polymer blends of polyethylene oxide and polymethyl methacrylate could realize the relatively steady release of fluoride ions with high biocompatibility. This strategy has promising potential to endow dental appliances with anti-cariogenicity.
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Affiliation(s)
- Tianxiao Wang
- Department of Odontology, Umeå University, Umeå, Sweden
| | - Menghong Li
- Department of Odontology, Umeå University, Umeå, Sweden
| | - Ziyan Gu
- Department of Odontology, Umeå University, Umeå, Sweden
| | - Chengjuan Qu
- Department of Odontology, Umeå University, Umeå, Sweden
| | | | - Roushdey Salh
- Department of Physics, Umeå University, Umeå, Sweden
| | | | - Jia Wang
- Department of Physics, Umeå University, Umeå, Sweden
| | - Wen Kou
- Department of Odontology, Umeå University, Umeå, Sweden
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Zaghmi A, Aybay E, Jiang L, Shang M, Steinmetz‐Späh J, Wermeling F, Kogner P, Korotkova M, Östling P, Jakobsson P, Seashore‐Ludlow B, Larsson K. High-content screening of drug combinations of an mPGES-1 inhibitor in multicellular tumor spheroids leads to mechanistic insights into neuroblastoma chemoresistance. Mol Oncol 2024; 18:317-335. [PMID: 37519014 PMCID: PMC10850797 DOI: 10.1002/1878-0261.13502] [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: 02/21/2023] [Revised: 06/09/2023] [Accepted: 07/28/2023] [Indexed: 08/01/2023] Open
Abstract
High-throughput drug screening enables the discovery of new anticancer drugs. Although monolayer cell cultures are commonly used for screening, their limited complexity and translational efficiency require alternative models. Three-dimensional cell cultures, such as multicellular tumor spheroids (MCTS), mimic tumor architecture and offer promising opportunities for drug discovery. In this study, we developed a neuroblastoma MCTS model for high-content drug screening. We also aimed to decipher the mechanisms underlying synergistic drug combinations in this disease model. Several agents from different therapeutic categories and with different mechanisms of action were tested alone or in combination with selective inhibition of prostaglandin E2 by pharmacological inhibition of microsomal prostaglandin E synthase-1 (mPGES-1). After a systematic investigation of the sensitivity of individual agents and the effects of pairwise combinations, GFP-transfected MCTS were used in a confirmatory screen to validate the hits. Finally, inhibitory effects on multidrug resistance proteins were examined. In summary, we demonstrate how MCTS-based high-throughput drug screening has the potential to uncover effective drug combinations and provide insights into the mechanism of synergy between an mPGES-1 inhibitor and chemotherapeutic agents.
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Affiliation(s)
- Ahlem Zaghmi
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Erdem Aybay
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Long Jiang
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Mingmei Shang
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Julia Steinmetz‐Späh
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Fredrik Wermeling
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Per Kogner
- Childhood Cancer Research Unit, Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
| | - Marina Korotkova
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Päivi Östling
- Department of Oncology‐Pathology, Science for Life LaboratoryKarolinska InstitutetStockholmSweden
| | - Per‐Johan Jakobsson
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Brinton Seashore‐Ludlow
- Department of Oncology‐Pathology, Science for Life LaboratoryKarolinska InstitutetStockholmSweden
| | - Karin Larsson
- Rheumatology Unit, Department of Medicine, SolnaKarolinska Institutet, Karolinska University HospitalStockholmSweden
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21
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Blanck E, Pirhonen Nørmark L, Fors A, Ekman I, Ali L, Swedberg K, Gyllensten H. Self-efficacy and healthcare costs in patients with chronic heart failure or chronic obstructive pulmonary disease. ESC Heart Fail 2024; 11:219-228. [PMID: 37940106 PMCID: PMC10804184 DOI: 10.1002/ehf2.14574] [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: 02/28/2023] [Revised: 09/22/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023] Open
Abstract
AIMS This study aims to explore possible associations between self-efficacy and healthcare and drug expenditures (i.e. direct costs) in patients with chronic heart failure (CHF) or chronic obstructive pulmonary disease (COPD) in a study investigating the effects of person-centred care delivered by telephone. METHODS AND RESULTS This exploratory analysis uses data from an open randomized controlled trial conducted between January 2015 and November 2016, providing remote person-centred care by phone to patients with CHF, COPD, or both. Patients hospitalized due to worsening of CHF or COPD were eligible for the study. Randomization was based on a computer-generated list, stratified for age ≥ 75 and diagnosis. At a 6 month follow-up, 118 persons remained in a control group and 103 in an intervention group. The intervention group received person-centred care by phone as an addition to usual care. Trial data were linked to register data on healthcare and drug use. Group-based trajectory modelling was applied to identify trajectories for general self-efficacy and direct costs. Next, associations between self-efficacy trajectories and costs were assessed using regression analysis. Five trajectories were identified for general self-efficacy, of which three indicated different levels of increasing or stable self-efficacy, while two showed a decrease over time in self-efficacy. Three trajectories were identified for costs, indicating a gradient from lower to higher accumulated costs. Increasing or stable self-efficacy was associated with lower direct costs (P = 0.0013). CONCLUSIONS The findings show that an increased or sustained self-efficacy is associated with lower direct costs in patients with CHF or COPD. Person-centred phone contacts used as an add-on to usual care could result in lower direct costs for those with stable or increasing self-efficacy.
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Affiliation(s)
- Elin Blanck
- Institute of Health and Care SciencesSahlgrenska Academy, University of GothenburgBox 457SE‐405 30GothenburgSweden
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | | | - Andreas Fors
- Institute of Health and Care SciencesSahlgrenska Academy, University of GothenburgBox 457SE‐405 30GothenburgSweden
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
- Region Västra Götaland, Research, Education, Development and Innovation, Primary Health CareGothenburgSweden
| | - Inger Ekman
- Institute of Health and Care SciencesSahlgrenska Academy, University of GothenburgBox 457SE‐405 30GothenburgSweden
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
- Department of Medicine, Geriatrics and Emergency MedicineSahlgrenska University Hospital/ÖstraGothenburgSweden
| | - Lilas Ali
- Institute of Health and Care SciencesSahlgrenska Academy, University of GothenburgBox 457SE‐405 30GothenburgSweden
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Karl Swedberg
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
- Department of Molecular and Clinical MedicineSahlgrenska AcademyGothenburgSweden
| | - Hanna Gyllensten
- Institute of Health and Care SciencesSahlgrenska Academy, University of GothenburgBox 457SE‐405 30GothenburgSweden
- University of Gothenburg Centre for Person‐Centred Care (GPCC), Sahlgrenska Academy, University of GothenburgGothenburgSweden
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Karlsson M, Platonov PG, Ulimoen SR, Sandberg F, Wallman M. Model-based estimation of AV-nodal refractory period and conduction delay trends from ECG. Front Physiol 2024; 14:1287365. [PMID: 38283279 PMCID: PMC10811553 DOI: 10.3389/fphys.2023.1287365] [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: 09/01/2023] [Accepted: 12/18/2023] [Indexed: 01/30/2024] Open
Abstract
Introduction: Atrial fibrillation (AF) is the most common arrhythmia, associated with significant burdens to patients and the healthcare system. The atrioventricular (AV) node plays a vital role in regulating heart rate during AF by filtering electrical impulses from the atria. However, it is often insufficient in regards to maintaining a healthy heart rate, thus the AV node properties are modified using rate-control drugs. Moreover, treatment selection during permanent AF is currently done empirically. Quantifying individual differences in diurnal and short-term variability of AV-nodal function could aid in personalized treatment selection. Methods: This study presents a novel methodology for estimating the refractory period (RP) and conduction delay (CD) trends, and their uncertainty in the two pathways of the AV node during 24 h using non-invasive data. This was achieved by utilizing a network model together with a problem-specific genetic algorithm and an approximate Bayesian computation algorithm. Diurnal variability in the estimated RP and CD was quantified by the difference between the daytime and nighttime estimates, and short-term variability was quantified by the Kolmogorov-Smirnov distance between adjacent 10-min segments in the 24-h trends. Additionally, the predictive value of the derived parameter trends regarding drug outcome was investigated using several machine learning tools. Results: Holter electrocardiograms from 51 patients with permanent AF during baseline were analyzed, and the predictive power of variations in RP and CD on the resulting heart rate reduction after treatment with four rate control drugs was investigated. Diurnal variability yielded no correlation to treatment outcome, and no prediction of drug outcome was possible using the machine learning tools. However, a correlation between the short-term variability for the RP and CD in the fast pathway and resulting heart rate reduction during treatment with metoprolol (ρ = 0.48, p < 0.005 in RP, ρ = 0.35, p < 0.05 in CD) were found. Discussion: The proposed methodology enables non-invasive estimation of the AV node properties during 24 h, which-indicated by the correlation between the short-term variability and heart rate reduction-may have the potential to assist in treatment selection.
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Affiliation(s)
- Mattias Karlsson
- Department of Systems and Data Analysis, Fraunhofer-Chalmers Centre, Gothenburg, Sweden
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Pyotr G. Platonov
- Department of Cardiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Sara R. Ulimoen
- Department of Medical Research, Vestre Viken Hospital Trust, Bærum Hospital, Drammen, Norway
| | - Frida Sandberg
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Mikael Wallman
- Department of Systems and Data Analysis, Fraunhofer-Chalmers Centre, Gothenburg, Sweden
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23
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Papareddy P, Selle M, Partouche N, Legros V, Rieu B, Olinder J, Ryden C, Bartakova E, Holub M, Jung K, Pottecher J, Herwald H. Identifying biomarkers deciphering sepsis from trauma-induced sterile inflammation and trauma-induced sepsis. Front Immunol 2024; 14:1310271. [PMID: 38283341 PMCID: PMC10820703 DOI: 10.3389/fimmu.2023.1310271] [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: 10/09/2023] [Accepted: 12/22/2023] [Indexed: 01/30/2024] Open
Abstract
Objective The purpose of this study was to identify a panel of biomarkers for distinguishing early stage sepsis patients from non-infected trauma patients. Background Accurate differentiation between trauma-induced sterile inflammation and real infective sepsis poses a complex life-threatening medical challenge because of their common symptoms albeit diverging clinical implications, namely different therapies. The timely and accurate identification of sepsis in trauma patients is therefore vital to ensure prompt and tailored medical interventions (provision of adequate antimicrobial agents and if possible eradication of infective foci) that can ultimately lead to improved therapeutic management and patient outcome. The adequate withholding of antimicrobials in trauma patients without sepsis is also important in aspects of both patient and environmental perspective. Methods In this proof-of-concept study, we employed advanced technologies, including Matrix-Assisted Laser Desorption/Ionization (MALDI) and multiplex antibody arrays (MAA) to identify a panel of biomarkers distinguishing actual sepsis from trauma-induced sterile inflammation. Results By comparing patient groups (controls, infected and non-infected trauma and septic shock patients under mechanical ventilation) at different time points, we uncovered distinct protein patterns associated with early trauma-induced sterile inflammation on the one hand and sepsis on the other hand. SYT13 and IL1F10 emerged as potential early sepsis biomarkers, while reduced levels of A2M were indicative of both trauma-induced inflammation and sepsis conditions. Additionally, higher levels of TREM1 were associated at a later stage in trauma patients. Furthermore, enrichment analyses revealed differences in the inflammatory response between trauma-induced inflammation and sepsis, with proteins related to complement and coagulation cascades being elevated whereas proteins relevant to focal adhesion were diminished in sepsis. Conclusions Our findings, therefore, suggest that a combination of biomarkers is needed for the development of novel diagnostic approaches deciphering trauma-induced sterile inflammation from actual infective sepsis.
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Affiliation(s)
- Praveen Papareddy
- Division of Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Michael Selle
- Genomics and Bioinformatics of Infectious Diseases, Institute for Animal Genomics, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Nicolas Partouche
- Hôpitaux Universitaires de Strasbourg, Service d’Anesthésie-Réanimation & Médecine Péri-opératoire - Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Vincent Legros
- Département d’Anesthésie-Réanimation et Médecine Peri-Operatoire, Centre Hospitalier et Universitaire (CHU) de Reims, Université de Reims Champagne-Ardenne, Reims, France
| | - Benjamin Rieu
- Réanimation Médico-Chirurgicale, Trauma Center, Pôle Médecine Péri-Opératoire, Centre Hospitalier et Universitaire (CHU) de Clermont-Ferrand, Clermont Ferrand, France
| | - Jon Olinder
- Division of Infection Medicine, Helsingborg Hospital and Department of Clinical Sciences Helsingborg, Lund University, Helsingborg, Sweden
| | - Cecilia Ryden
- Division of Infection Medicine, Helsingborg Hospital and Department of Clinical Sciences Helsingborg, Lund University, Helsingborg, Sweden
| | - Eva Bartakova
- Department of Infectious Diseases, First Faculty of Medicine, Charles University and Military University Hospital Prague, Prague, Czechia
| | - Michal Holub
- Department of Infectious Diseases, First Faculty of Medicine, Charles University and Military University Hospital Prague, Prague, Czechia
| | - Klaus Jung
- Genomics and Bioinformatics of Infectious Diseases, Institute for Animal Genomics, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Julien Pottecher
- Hôpitaux Universitaires de Strasbourg, Service d’Anesthésie-Réanimation & Médecine Péri-opératoire - Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Heiko Herwald
- Division of Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
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Al Khalaf S, Kublickiene K, Kublickas M, Khashan AS, Heazell AEP. Risk of stillbirth and adverse pregnancy outcomes in a third pregnancy when an earlier pregnancy has ended in stillbirth. Acta Obstet Gynecol Scand 2024; 103:111-120. [PMID: 37891707 PMCID: PMC10755120 DOI: 10.1111/aogs.14705] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/04/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
INTRODUCTION Our study evaluated how a history of stillbirth in either of the first two pregnancies affects the risk of having a stillbirth or other adverse pregnancy outcomes in the third subsequent pregnancy. MATERIAL AND METHODS We used the Swedish Medical Birth Register to define a population-based cohort of women who had at least three singleton births from 1973 to 2012. The exposure of interest was a history of stillbirth in either of the first two pregnancies. The primary outcome was subsequent stillbirth in the third pregnancy. Secondary outcomes included: preterm birth, preeclampsia, placental abruption and small-for-gestational-age infant. Adjusted logistic regression was performed including maternal age, body mass index, smoking, diabetes and hypertension. A sensitivity analysis was performed excluding stillbirths associated with congenital anomalies, pregestational and gestational diabetes, hypertension and preterm stillbirths. RESULTS The study contained data on 1 316 175 births, including 8911 stillbirths. Compared with women who had two live births, the highest odds of stillbirth in the third pregnancy were observed in women who had two stillbirths (adjusted odds ratio [aOR] 11.40, 95% confidence interval [95% CI] 2.75-47.70), followed by those who had stillbirth in the second birth (live birth-stillbirth) (aOR 3.59, 95% CI 2.58-4.98), but the odds were still elevated in those whose first birth ended in stillbirth (stillbirth-live birth) (aOR 2.35, 1.68, 3.28). Preterm birth, pre-eclampsia and placental abruption followed a similar pattern. The odds of having a small-for-gestational-age infant were highest in women whose first birth ended in stillbirth (aOR 1.93, 95% CI 1.66-2.24). The increased odds of having a stillbirth in a third pregnancy when either of the earlier births ended in stillbirth remained when stillbirths associated with congenital anomalies, pregestational and gestational diabetes, hypertension or preterm stillbirths were excluded. However, when preterm stillbirths were excluded, the strength of the association was reduced. CONCLUSIONS Even when they have had a live-born infant, women with a history of stillbirth have an increased risk of adverse pregnancy outcomes; this cannot be solely accounted for by the recurrence of congenital anomalies or maternal medical disorders. This suggests that women with a history of stillbirth should be offered additional surveillance for subsequent pregnancies.
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Affiliation(s)
- Sukainah Al Khalaf
- School of Public HealthUniversity College CorkCorkIreland
- Mohammed Al‐Mana College for Medical SciencesDammamSaudi Arabia
| | - Karolina Kublickiene
- Department of Clinical Intervention, Science and Technology (CLINTEC), Karolinska InstitutetKarolinska University HospitalStockholmSweden
| | - Marius Kublickas
- Department of Obstetrics and GynecologyKarolinska University HospitalStockholmSweden
| | - Ali S. Khashan
- School of Public HealthUniversity College CorkCorkIreland
- INFANT Research CentreUniversity College CorkCorkIreland
| | - Alexander E. P. Heazell
- Maternal and Fetal Health Research Centre, School of Medical Sciences, Medical and HealthUniversity of ManchesterManchesterUK
- Saint Mary's HospitalManchester University NHS Foundation TrustManchesterUK
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Onerup A, Mirzaei S. S, Bhatia S, Ware ME, Joffe L, Turcotte LM, Goodenough CG, Sapkota Y, Dixon SB, Wogksch MD, Ehrhardt MJ, Armstrong GT, Hudson MM, Ness KK. Lifestyle and subsequent meningioma in childhood cancer survivors: A report from the St. Jude Lifetime Cohort study. Cancer Rep (Hoboken) 2024; 7:e1944. [PMID: 38009808 PMCID: PMC10809185 DOI: 10.1002/cnr2.1944] [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: 08/25/2023] [Revised: 10/24/2023] [Accepted: 11/11/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Lifestyle is associated with meningioma risk in the general population. AIMS We assessed longitudinal associations between lifestyle-associated factors and subsequent meningiomas in childhood cancer survivors. METHODS AND RESULTS Childhood cancer survivors age ≥18 years in the St. Jude Lifetime Cohort Study were evaluated for body composition, self-reported physical activity, cardiopulmonary fitness, muscle strength, smoking, and alcohol consumption at baseline. Time to first meningioma analyses were performed, adjusted for sex, age at diagnosis and baseline assessment, treatment decade, and childhood cancer treatment exposures. The study included 4,072 survivors (47% female; [mean (SD)] 9 (6) years at diagnosis; 30 (8.5) years at the start of follow-up, with 7.0 (3.3) years of follow-up). 30% of the participants were survivors of acute lymphoblastic leukemia and 29% of the participants had received cranial radiation. During follow-up, 90 participants developed ≥1 meningioma, of whom 73% were survivors of acute lymphoblastic leukemia, with cranial radiation being the strongest risk factor (relative risk [RR] 29.7, 95% confidence interval [CI] 10.6-83.2). Muscle strength assessed by knee extension was associated with a lower risk of developing a meningioma in the adjusted analyses (RR 0.5, 95% CI 0.2-1.0, p = 0.04 for quartiles 3-4 vs. 1). No other lifestyle-associated variable was associated with subsequent meningioma. CONCLUSION Independent of cranial radiation, muscle strength was associated with a lower risk of developing a subsequent meningioma in childhood cancer survivors.
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Affiliation(s)
- Aron Onerup
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
- Department of PediatricsInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Sedigheh Mirzaei S.
- Department of BiostatisticsSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Shalini Bhatia
- Department of BiostatisticsSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Megan E. Ware
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Lenat Joffe
- Department of PediatricsZucker School of Medicine at Hofstra/NorthwellNew Hyde ParkNew YorkUSA
| | - Lucie M. Turcotte
- Department of PediatricsUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Chelsea G. Goodenough
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Yadav Sapkota
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Stephanie B. Dixon
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
- Department of OncologySt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Matthew D. Wogksch
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Matthew J. Ehrhardt
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
- Department of OncologySt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Gregory T. Armstrong
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Melissa M. Hudson
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
- Department of OncologySt Jude Children's Research HospitalMemphisTennesseeUSA
| | - Kirsten K. Ness
- Department of Epidemiology and Cancer ControlSt Jude Children's Research HospitalMemphisTennesseeUSA
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Backman A, Sjögren K, Lövheim H, Edvardsson D. Moving between doing and being-Meanings of person-centredness as narrated by nursing home managers. A phenomenological hermeneutical study. Nurs Open 2024; 11:e2073. [PMID: 38268253 PMCID: PMC10733602 DOI: 10.1002/nop2.2073] [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: 05/15/2023] [Revised: 11/22/2023] [Accepted: 12/02/2023] [Indexed: 01/26/2024] Open
Abstract
AIM This study aimed to illuminate meanings of person-centredness as narrated by nursing home managers in nursing homes rated as highly person-centred. DESIGN A phenomenological hermeneutical approach was used. METHODS Twelve nursing home managers in 11 highly person-centred nursing homes in 7 municipalities in Sweden were included in this interview study. The findings were interpreted, reflected and discussed through the lens of Ricoeur. RESULTS Meanings of person-centredness could be understand as moving between doing and being through knowing, sensing, sharing and giving for person-centredness. These aspects contributed via knowledge, understanding, interaction and action that involved doing for and being with older persons through these caring dimensions. By moving between doing for, being with and being part of the overall nursing home narrative, knowing, sensing, sharing and giving could support the persons' identity in different ways. This may also contribute to sense-making, preserving dignity and promoting self-esteem when aiming to provide a good life for older persons in nursing homes, within an ever-present ethical frame. NO PATIENT OR PUBLIC CONTRIBUTION This study illuminated meanings of person-centredness as narrated by nursing home managers. No patient of public contribution was investigated.
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Affiliation(s)
| | | | - Hugo Lövheim
- Department of Community Medicine and RehabilitationUmeå UniversityUmeåSweden
- Wallenberg Centre for Molecular MedicineUmeåSweden
| | - David Edvardsson
- School of Nursing and MidwiferyLa Trobe UniversityMelbourneAustralia
- Sahlgrenska Academy, Institute of Health and Care SciencesUniversity of GothenburgGothenburgSweden
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Peter MG, Darki F, Thunell E, Mårtensson G, Postma EM, Boesveldt S, Westman E, Lundström JN. Lifelong olfactory deprivation-dependent cortical reorganization restricted to orbitofrontal cortex. Hum Brain Mapp 2023; 44:6459-6470. [PMID: 37915233 PMCID: PMC10681638 DOI: 10.1002/hbm.26522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 11/03/2023] Open
Abstract
Prolonged sensory deprivation has repeatedly been linked to cortical reorganization. We recently demonstrated that individuals with congenital anosmia (CA, complete olfactory deprivation since birth) have seemingly normal morphology in piriform (olfactory) cortex despite profound morphological deviations in the orbitofrontal cortex (OFC), a finding contradictory to both the known effects of blindness on visual cortex and to the sparse literature on brain morphology in anosmia. To establish whether these unexpected findings reflect the true brain morphology in CA, we first performed a direct replication of our previous study to determine if lack of results was due to a deviant control group, a confound in cross sectional studies. Individuals with CA (n = 30) were compared to age and sex matched controls (n = 30) using voxel- and surface-based morphometry. The replication results were near identical to the original study: bilateral clusters of group differences in the OFC, including CA atrophy around the olfactory sulci and volume increases in the medial orbital gyri. Importantly, no group differences in piriform cortex were detected. Subsequently, to assess any subtle patterns of group differences not detectable by our mass-univariate analysis, we explored the data from a multivariate perspective. Combining the newly collected data with data from the replicated study (CA = 49, control = 49), we performed support vector machine classification based on gray matter volume. In line with the mass-univariate analyses, the multivariate analysis could accurately differentiate between the groups in bilateral OFC, whereas the classification accuracy in piriform cortex was at chance level. Our results suggest that despite lifelong olfactory deprivation, piriform (olfactory) cortex is morphologically unaltered and the morphological deviations in CA are confined to the OFC.
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Affiliation(s)
- Moa G. Peter
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
| | - Fahimeh Darki
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
| | - Evelina Thunell
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
| | - Gustav Mårtensson
- Department of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
| | - Elbrich M. Postma
- Smell and Taste Centre, Hospital Gelderse ValleiEdethe Netherlands
- Division of Human Nutrition and HealthWageningen UniversityWageningenthe Netherlands
| | - Sanne Boesveldt
- Division of Human Nutrition and HealthWageningen UniversityWageningenthe Netherlands
| | - Eric Westman
- Department of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College LondonLondonUK
| | - Johan N. Lundström
- Department of Clinical Neuroscience, Karolinska InstitutetStockholmSweden
- Monell Chemical Senses CenterPhiladelphiaPennsylvaniaUSA
- Stockholm University Brain Imaging CenterStockholm UniversityStockholmSweden
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Hellström S, Jonsdotter A, Jonsson M, Pettersson K, Saltvedt S, Herbst A, Ågren J, Ådén U, Domellöf M, Hagberg H, Carlsson Y. A follow up on the feasibility after national implementation of magnesium sulfate for neuroprotection prior to preterm birth. Acta Obstet Gynecol Scand 2023; 102:1741-1748. [PMID: 37680134 PMCID: PMC10619608 DOI: 10.1111/aogs.14673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
INTRODUCTION The risk for brain injury manifested as cerebral palsy is higher in very preterm born children than in term. Prenatal administration of magnesium sulfate (MgSO4 ) has been shown to be neuroprotective and reduces the proportion of very preterm born children later diagnosed with cerebral palsy. A Swedish national clinical practice guideline was implemented in March 2020, stipulating the administration of a single intravenous dose of 6 g MgSO4 1-24 h prior to delivery before gestational age 32+0, aiming for 90% treatment coverage. The aim of this study was to evaluate the feasibility of this new clinical practice guideline in the first year of its implementation. MATERIAL AND METHODS Data on MgSO4 treatment were collected by reviewing the medical charts of women who gave birth to live born children in gestational age 22+0-31+6 during the period of March 1, 2020 to February 28, 2021, at five Swedish university hospitals. Women with pre-eclampsia, eclampsia, or high elevated liver enzymes low platelets (HELLP) were excluded. RESULTS A total of 388 women were eligible and 79% received treatment with MgSO4 . Of the 21% not receiving treatment, 9% did not receive treatment due to lack of knowledge about the clinical practice guideline, 9% were not possible to treat and 3% had missing data. The proportion treated increased from 72% to 87% from the first to the last 3 months. Of those treated, 81% received the drug within the stipulated timeframe (mean 8.7 h, median 3.4 h). CONCLUSIONS There was a positive trend over time in the proportion of women receiving MgSO4 treatment, but the a priori target of 90% was not reached during the first year of implementation. Our findings indicate that this target could be reached with additional information to clinicians.
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Affiliation(s)
- Sara Hellström
- Department of Obstetrics and Gynecology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
- Division of Neonatology, Department of Pediatrics, The Queen Silvia Children's HospitalSahlgrenska University HospitalGothenburgSweden
| | - Andrea Jonsdotter
- Department of Obstetrics and Gynecology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
- Center of Perinatal Medicine and HealthInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Maria Jonsson
- Department of Women's and Children's HealthUppsala UniversityUppsalaSweden
| | - Karin Pettersson
- Clinical Intervention Science and Technology, CLINTECKarolinska InstituteStockholmSweden
| | - Sissel Saltvedt
- Department of Women's and Children's HealthKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Andreas Herbst
- Department of Obstetrics and Gynecology, Skåne University HospitalInstitution for Clinical Sciences Lund, Lund UniversityLundSweden
| | - Johan Ågren
- Department of Women's and Children's HealthUppsala UniversityUppsalaSweden
| | - Ulrika Ådén
- Department of Women's and Children's HealthKarolinska Institutet, Karolinska University HospitalStockholmSweden
- Department of Biomedical and Clinical SCIENCESLinköping UniversityLinköpingSweden
| | - Magnus Domellöf
- Department of Clinical Sciences, PediatricsUmeå UniversityUmeåSweden
| | - Henrik Hagberg
- Department of Obstetrics and Gynecology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
- Center of Perinatal Medicine and HealthInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Ylva Carlsson
- Department of Obstetrics and Gynecology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
- Center of Perinatal Medicine and HealthInstitute of Clinical Sciences, Sahlgrenska Academy, University of GothenburgGothenburgSweden
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Pettersson E. Opportunities of measuring hierarchical models of psychopathology. JCPP Adv 2023; 3:e12187. [PMID: 38054064 PMCID: PMC10694532 DOI: 10.1002/jcv2.12187] [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: 11/28/2022] [Accepted: 06/15/2023] [Indexed: 12/07/2023] Open
Abstract
All psychiatric phenomena are positively associated, and several different models can account for this observation. These include the correlated factors, network, general psychopathology as outcome, and hierarchical models. Advantages of hierarchical models, which consist of one general and several (general factor-residualized) specific factors, is that the general factor provides an opportunity to reliably measure global distress and impairment, while the specific factors might improve the ability to discriminate between individuals with different kinds of problems. Nevertheless, other models also have their respective advantages, and it remains challenging to empirically determine which model best accounts for the positive manifold in psychiatry. Instead, I present two non-empirical arguments in favor of hierarchical models. First, by measuring the general factor in isolation, the specific factors tend to include both favorable and unfavorable correlates, which might reduce stigma compared to psychiatric diagnoses that by and large are associated with only unfavorable outcomes. Second, the general psychopathology factor displays an unusual psychometric property in that it includes symptoms of opposite meaning if they have similar valence (e.g., self-reported symptoms such as gullible and paranoid, lazy and workaholic, and terrified and apathetic load in the same direction), which one might want to measure in isolation from variance capturing the content of symptoms. I conclude by speculating that tests designed based on hierarchical models might help clinical assessment.
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Affiliation(s)
- Erik Pettersson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
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Olofsson Bagge R, Berndtsson J, Urzì O, Lötvall J, Micaroni M, Crescitelli R. Three-dimensional reconstruction of interstitial extracellular vesicles in human liver as determined by electron tomography. J Extracell Vesicles 2023; 12:e12380. [PMID: 38010190 PMCID: PMC10680575 DOI: 10.1002/jev2.12380] [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: 06/26/2023] [Revised: 10/03/2023] [Accepted: 10/25/2023] [Indexed: 11/29/2023] Open
Abstract
Extracellular vesicles (EVs) are lipid bilayer nanoparticles involved in cell-cell communication that are released into the extracellular space by all cell types. The cargo of EVs includes proteins, lipids, nucleic acids, and metabolites reflecting their cell of origin. EVs have recently been isolated directly from solid tissues, and this may provide insights into how EVs mediate communication between cells in vivo. Even though EVs have been isolated from tissues, their point of origin when they are in the interstitial space has been uncertain. In this study, we performed three-dimensional (3D) reconstruction using transmission electron tomography of metastatic and normal liver tissues with a focus on the presence of EVs in the interstitium. After chemical fixation of the samples and subsequent embedding of tissue pieces in resin, ultrathin slices (300 nm) were cut and imaged on a 120 ekV transmission electron microscopy as a tilt series (a series of subsequent images tilted at different angles). These were then computationally illustrated in a 3D manner to reconstruct the imaged tissue volume. We identified the cells delimiting the interstitial space in both types of tissues, and small distinct spherical structures with a diameter of 30-200 nm were identified between the cells. These round structures appeared to be more abundant in metastatic tissue compared to normal tissue. We suggest that the observed spherical structures in the interstitium of the metastatic and non-metastatic liver represent EVs. This work thus provides the first 3D visualization of EVs in human tissue.
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Affiliation(s)
- Roger Olofsson Bagge
- Sahlgrenska Center for Cancer Research and Wallenberg Centre for Molecular and Translational Medicine, Department of Surgery, Institute of Clinical SciencesSahlgrenska Academy, University of GothenburgGothenburgSweden
- Department of SurgerySahlgrenska University Hospital, Region Västra GötalandGothenburgSweden
| | - Jens Berndtsson
- Centre for Cellular Imaging Core FacilitySahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Ornella Urzì
- Sahlgrenska Center for Cancer Research and Wallenberg Centre for Molecular and Translational Medicine, Department of Surgery, Institute of Clinical SciencesSahlgrenska Academy, University of GothenburgGothenburgSweden
- St. Anna Children's Cancer Research Institute (CCRI)ViennaAustria
| | - Jan Lötvall
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine at Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Massimo Micaroni
- Centre for Cellular Imaging Core FacilitySahlgrenska Academy, University of GothenburgGothenburgSweden
| | - Rossella Crescitelli
- Sahlgrenska Center for Cancer Research and Wallenberg Centre for Molecular and Translational Medicine, Department of Surgery, Institute of Clinical SciencesSahlgrenska Academy, University of GothenburgGothenburgSweden
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Gómez‐Blanco D, Tobler M, Hasselquist D. Why and when should organisms elongate their telomeres? Elaborations on the 'excess resources elongation' and 'last resort elongation' hypotheses. Ecol Evol 2023; 13:e10825. [PMID: 38099139 PMCID: PMC10719541 DOI: 10.1002/ece3.10825] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 10/31/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023] Open
Abstract
Telomere length and telomere shortening are thought to be critical cellular attributes and processes that are related to an individual's life span and fitness. The general pattern across most taxa is that after birth telomere length gradually decreases with age. Telomere protection and restoration mechanisms are usually assumed to reduce the rate of shortening or at most keep telomere length constant. However, here we have compiled a list of 26 articles showing that there is an increasing number of studies reporting apparent elongation of telomeres (i.e., a net increase in TL from timet to timet+1) often in a considerable proportion of the individuals studied. Moreover, the few studies which have studied telomere elongation in detail show that increases in telomere length are unlikely to be due to measurement error alone. In this article, we argue that episodes of telomere elongation deserve more attention as they could reflect individual strategies to optimise life histories and maximise fitness, which may not be reflected in the overall telomere dynamics patterns. We propose that patterns of telomere (net) elongation may be partly determined by other factors than those causing telomere shortening, and therefore deserve analyses specifically targeted to investigate the occurrence of telomere elongation. We elaborate on two ecological hypotheses that have been proposed to explain patterns of telomere elongation (the 'excess resources elongation' and the 'last resort elongation' hypothesis) and we discuss the current evidence for (or against) these hypotheses and propose ways to test them.
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Booth S, Mozumder SI, Archer L, Ensor J, Riley RD, Lambert PC, Rutherford MJ. Using temporal recalibration to improve the calibration of risk prediction models in competing risk settings when there are trends in survival over time. Stat Med 2023; 42:5007-5024. [PMID: 37705296 PMCID: PMC10946485 DOI: 10.1002/sim.9898] [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: 12/21/2021] [Revised: 07/31/2023] [Accepted: 08/23/2023] [Indexed: 09/15/2023]
Abstract
We have previously proposed temporal recalibration to account for trends in survival over time to improve the calibration of predictions from prognostic models for new patients. This involves first estimating the predictor effects using data from all individuals (full dataset) and then re-estimating the baseline using a subset of the most recent data whilst constraining the predictor effects to remain the same. In this article, we demonstrate how temporal recalibration can be applied in competing risk settings by recalibrating each cause-specific (or subdistribution) hazard model separately. We illustrate this using an example of colon cancer survival with data from the Surveillance Epidemiology and End Results (SEER) program. Data from patients diagnosed in 1995-2004 were used to fit two models for deaths due to colon cancer and other causes respectively. We discuss considerations that need to be made in order to apply temporal recalibration such as the choice of data used in the recalibration step. We also demonstrate how to assess the calibration of these models in new data for patients diagnosed subsequently in 2005. Comparison was made to a standard analysis (when improvements over time are not taken into account) and a period analysis which is similar to temporal recalibration but differs in the data used to estimate the predictor effects. The 10-year calibration plots demonstrated that using the standard approach over-estimated the risk of death due to colon cancer and the total risk of death and that calibration was improved using temporal recalibration or period analysis.
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Affiliation(s)
- Sarah Booth
- Biostatistics Research Group, Department of Population Health SciencesUniversity of LeicesterLeicesterUK
| | - Sarwar I. Mozumder
- Biostatistics Research Group, Department of Population Health SciencesUniversity of LeicesterLeicesterUK
- Oncology Biometrics Statistical Innovation, AstraZenecaCambridgeUK
| | - Lucinda Archer
- Institute of Applied Health Research, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Joie Ensor
- Institute of Applied Health Research, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Richard D. Riley
- Institute of Applied Health Research, College of Medical and Dental SciencesUniversity of BirminghamBirminghamUK
| | - Paul C. Lambert
- Biostatistics Research Group, Department of Population Health SciencesUniversity of LeicesterLeicesterUK
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Mark J. Rutherford
- Biostatistics Research Group, Department of Population Health SciencesUniversity of LeicesterLeicesterUK
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Thomas OG, Olsson T. Mimicking the brain: Epstein-Barr virus and foreign agents as drivers of neuroimmune attack in multiple sclerosis. Front Immunol 2023; 14:1304281. [PMID: 38022632 PMCID: PMC10655090 DOI: 10.3389/fimmu.2023.1304281] [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: 09/29/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
T cells have an essential role in adaptive immunity against pathogens and cancer, but failure of thymic tolerance mechanisms can instead lead to escape of T cells with the ability to attack host tissues. Multiple sclerosis (MS) occurs when structures such as myelin and neurons in the central nervous system (CNS) are the target of autoreactive immune responses, resulting in lesions in the brain and spinal cord which cause varied and episodic neurological deficits. A role for autoreactive T cell and antibody responses in MS is likely, and mounting evidence implicates Epstein-Barr virus (EBV) in disease mechanisms. In this review we discuss antigen specificity of T cells involved in development and progression of MS. We examine the current evidence that these T cells can target multiple antigens such as those from pathogens including EBV and briefly describe other mechanisms through which viruses could affect disease. Unravelling the complexity of the autoantigen T cell repertoire is essential for understanding key events in the development and progression of MS, with wider implications for development of future therapies.
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Affiliation(s)
- Olivia G. Thomas
- Therapeutic Immune Design, Centre for Molecular Medicine, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
- Neuroimmunology Unit, Department of Clinical Neuroscience, Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Tomas Olsson
- Therapeutic Immune Design, Centre for Molecular Medicine, Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
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Stenlid R, Cerenius SY, Wen Q, Aydin BK, Manell H, Chowdhury A, Kristinsson H, Ciba I, Gjessing ES, Mörwald K, Gomahr J, Heu V, Weghuber D, Forslund A, Bergsten P. Adolescents with obesity treated with exenatide maintain endogenous GLP-1, reduce DPP-4, and improve glycemic control. Front Endocrinol (Lausanne) 2023; 14:1293093. [PMID: 38027106 PMCID: PMC10646558 DOI: 10.3389/fendo.2023.1293093] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
Background GLP-1 receptor agonists (GLP-1RA) are increasingly used to treat adolescent obesity. However, the effect on endogenous GLP-1 secretory patterns following treatment in adolescents is unknown. The GLP-1RA exenatide was shown to significantly lower BMI and 2-hour glucose in adolescents with obesity, in the placebo-controlled, randomized controlled trial Combat-JUDO. The aim of this study was to evaluate effects of weekly injections of 2 mg exenatide extended release on secretory patterns of endogenous hormones during OGTT. Subjects and Measurements This study was a pre-planned sub-study of the Combat-JUDO trial, set at the Pediatric clinic at Uppsala University Hospital, Sweden and Paracelsus Medical University, Austria. 44 adolescents with obesity were included and randomized 1:1 to treatment:placebo. 19 patients in the treatment group and 18 in the placebo group completed the trial. Before and after treatment, GLP-1, glucose, insulin, glucagon and glicentin levels were measured during OGTT; DPP-4 and proinsulin were measured at fasting. A per-protocol approach was used in the analyses. Results Exenatide treatment did not affect GLP-1 levels during OGTT. Treatment significantly lowered DPP-4, proinsulin and the proinsulin-to-insulin ratio at fasting, increased glicentin levels but did not affect insulin, C-peptide or glucagon levels during OGTT. Conclusion Weekly s.c. injections with 2 mg of exenatide maintains endogenous total GLP-1 levels and lowers circulating DPP-4 levels. This adds an argument in favor of using exenatide in the treatment of pediatric obesity. Clinical trial registration clinicaltrials.gov, identifier NCT02794402.
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Affiliation(s)
- Rasmus Stenlid
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatric Obesity, Uppsala University Children’s Hospital, Uppsala, Sweden
| | - Sara Y. Cerenius
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Quan Wen
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Banu Küçükemre Aydin
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Hannes Manell
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatric Obesity, Uppsala University Children’s Hospital, Uppsala, Sweden
| | - Azazul Chowdhury
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | - Iris Ciba
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatric Obesity, Uppsala University Children’s Hospital, Uppsala, Sweden
| | - Erik S. Gjessing
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Katharina Mörwald
- Department of Pediatrics, Paracelsus Medical University, Salzburg, Austria
- Obesity Research Unit, Paracelsus Medical University, Salzburg, Austria
| | - Julian Gomahr
- Department of Pediatrics, Paracelsus Medical University, Salzburg, Austria
- Obesity Research Unit, Paracelsus Medical University, Salzburg, Austria
| | - Verena Heu
- Department of Pediatrics, Paracelsus Medical University, Salzburg, Austria
- Obesity Research Unit, Paracelsus Medical University, Salzburg, Austria
| | - Daniel Weghuber
- Department of Pediatrics, Paracelsus Medical University, Salzburg, Austria
- Obesity Research Unit, Paracelsus Medical University, Salzburg, Austria
| | - Anders Forslund
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatric Obesity, Uppsala University Children’s Hospital, Uppsala, Sweden
| | - Peter Bergsten
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
- Department of Pediatric Obesity, Uppsala University Children’s Hospital, Uppsala, Sweden
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Jiang F, Boakye D, Sun J, Wang L, Yu L, Zhou X, Zhao J, Bian Z, Song P, He Y, Zhu Y, Chen J, Yuan S, Song M, Larsson SC, Giovannucci EL, Theodoratou E, Ding K, Li X. Association between antibiotic use during early life and early-onset colorectal cancer risk overall and according to polygenic risk and FUT2 genotypes. Int J Cancer 2023; 153:1602-1611. [PMID: 37504220 PMCID: PMC10953323 DOI: 10.1002/ijc.34648] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/29/2023] [Accepted: 06/12/2023] [Indexed: 07/29/2023]
Abstract
Early-onset colorectal cancer (EOCRC) has been increasing worldwide. Potential risk factors may have occurred in childhood or adolescence. We investigated the associations between early-life factors and EOCRC risk, with a particular focus on long-term or recurrent antibiotic use (LRAU) and its interaction with genetic factors. Data on the UK Biobank participants recruited between 2006 and 2010 and followed up to February 2022 were used. We used logistic regression to estimate adjusted odds ratios (ORs) and 95% confidence intervals (95% CIs) of the associations between LRAU during early life and EOCRC risk overall and by polygenic risk score (constructed by 127 CRC-related genetic variants) and Fucosyltransferase 2 (FUT2), a gut microbiota regulatory gene. We also assessed the associations for early-onset colorectal adenomas, as precursor lesion of CRC, to examine the effect of LRAU during early-life and genetic factors on colorectal carcinogenesis. A total of 113 256 participants were included in the analysis, with 165 EOCRC cases and 719 EOCRA cases. LRAU was nominally associated with increased risk of early-onset CRC (OR = 1.48, 95% CI = 1.01-2.17, P = .046) and adenomas (OR = 1.40, 95% CI = 1.17-1.68, P < .001). When stratified by genetic polymorphisms of FUT2, LRAU appeared to confer a comparatively greater risk for early-onset adenomas among participants with rs281377 TT genotype (OR = 1.10, 95% CI = 0.79-1.52, P = .587, for CC genotype; OR = 1.75, 95% CI = 1.16-2.64, P = .008, for TT genotype; Pinteraction = .089). Our study suggested that LRAU during early life is associated with increased risk of early-onset CRC and adenomas, and the association for adenomas is predominant among individuals with rs281377 TT/CT genotype. Further studies investigating how LRAU contributes together with genetic factors to modify EOCRC risk, particularly concerning the microbiome-related pathway underlying colorectal carcinogenesis, are warranted.
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Affiliation(s)
- Fangyuan Jiang
- Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital and School of Public HealthZhejiang University School of MedicineHangzhouChina
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Daniel Boakye
- Department of Life SciencesPMI Global Studio LimitedLondonUK
| | - Jing Sun
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Lijuan Wang
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Centre for Global HealthUsher Institute, The University of EdinburghEdinburghUK
| | - Lili Yu
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Xuan Zhou
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
- Centre for Global HealthUsher Institute, The University of EdinburghEdinburghUK
| | - Jianhui Zhao
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Zilong Bian
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Peige Song
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Yazhou He
- West China School of Public Health and West China Fourth HospitalSichuan UniversityChengduChina
| | - Yingshuang Zhu
- Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital and School of Public HealthZhejiang University School of MedicineHangzhouChina
| | - Jie Chen
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional EpidemiologyInstitute of Environmental Medicine, Karolinska InstituteStockholmSweden
| | - Mingyang Song
- Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Department of NutritionHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Clinical and Translational Epidemiology UnitMassachusetts General Hospital and Harvard Medical SchoolBostonMassachusettsUSA
- Division of GastroenterologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Susanna C. Larsson
- Unit of Cardiovascular and Nutritional EpidemiologyInstitute of Environmental Medicine, Karolinska InstituteStockholmSweden
- Unit of Medical Epidemiology, Department of Surgical SciencesUppsala UniversityUppsalaSweden
| | - Edward L Giovannucci
- Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Department of NutritionHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
| | - Evropi Theodoratou
- Centre for Global HealthUsher Institute, The University of EdinburghEdinburghUK
- Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and CancerThe University of EdinburghEdinburghUK
| | - Kefeng Ding
- Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital and School of Public HealthZhejiang University School of MedicineHangzhouChina
- Zhejiang Provincial Clinical Research Center for CancerCancer Center of Zhejiang UniversityHangzhouChina
| | - Xue Li
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina
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Sundqvist M, Christenson K, Wekell P, Björnsdottir H, Dahlstrand Rudin A, Sanchez Klose FP, Kallinich T, Welin A, Björkman L, Bylund J, Karlsson-Bengtsson A, Berg S. Severe chronic non-bacterial osteomyelitis in combination with total MPO deficiency and responsiveness to TNFα inhibition. Front Immunol 2023; 14:1233101. [PMID: 37954595 PMCID: PMC10637399 DOI: 10.3389/fimmu.2023.1233101] [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: 06/01/2023] [Accepted: 10/10/2023] [Indexed: 11/14/2023] Open
Abstract
We describe a female patient suffering from severe chronic non-bacterial osteomyelitis (CNO) with systemic inflammation and advanced malnutrition and complete deficiency of myeloperoxidase (MPO). CNO is a rare autoinflammatory bone disorder associated with dysregulation of the innate immune system. MPO deficiency is a genetic disorder with partial or complete absence of the phagocyte peroxidase MPO. MPO deficiency has no established clinical phenotype but reports indicate increased susceptibility to infection and chronic inflammation. The patient's symptoms began at 10 years of age with pain in the thighs, systemic inflammation and malnutrition. She was diagnosed with CNO at 14 years of age. Treatment with nonsteroidal anti-inflammatory drugs, corticosteroids, bisphosphonates or IL1-receptor antagonists (anakinra) did not relieve the symptoms. However, the patient responded instantly and recovered from her clinical symptoms when treated with TNFα blockade (adalimumab). Three years after treatment initiation adalimumab was withdrawn, resulting in rapid symptom recurrence. When reintroducing adalimumab, the patient promptly responded and went into remission. In addition to clinical and laboratory profiles, neutrophil functions (reactive oxygen species, ROS; neutrophil extracellular traps, NETs; degranulation; apoptosis; elastase activity) were investigated both in a highly inflammatory state (without treatment) and in remission (on treatment). At diagnosis, neither IL1β, IL6, nor TNFα was significantly elevated in serum, but since TNFα blockade terminated the inflammatory symptoms, the disease was likely TNFα-driven. All neutrophil parameters were normal both during treatment and treatment withdrawal, except for MPO-dependent intracellular ROS- and NET formation. The role of total MPO deficiency for disease etiology and severity is discussed.
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Affiliation(s)
- Martina Sundqvist
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
| | - Karin Christenson
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Per Wekell
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatrics, NU Hospital Group, Uddevalla, Sweden
- Department of Pediatric Rheumatology and Immunology, Queen Silvia Children’s Hospital, Gothenburg, Sweden
| | - Halla Björnsdottir
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Agnes Dahlstrand Rudin
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Felix P. Sanchez Klose
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Tilmann Kallinich
- Department of Pediatric Pneumology, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Amanda Welin
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Faculty of Medicine, Linköping University, Linköping, Sweden
| | - Lena Björkman
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
- Unit of Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Johan Bylund
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Karlsson-Bengtsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy University of Gothenburg, Gothenburg, Sweden
- Division of Chemical Biology, Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Stefan Berg
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatric Rheumatology and Immunology, Queen Silvia Children’s Hospital, Gothenburg, Sweden
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Törnell A, Blick E, Al-Dury S, Grauers Wiktorin H, Waern J, Ringlander J, Einarsdottir S, Lindh M, Hellstrand K, Lagging M, Martner A. Presence of MDSC associates with impaired antigen-specific T cell reactivity following COVID-19 vaccination in cirrhotic patients. Front Immunol 2023; 14:1287287. [PMID: 37928515 PMCID: PMC10623131 DOI: 10.3389/fimmu.2023.1287287] [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: 09/01/2023] [Accepted: 10/06/2023] [Indexed: 11/07/2023] Open
Abstract
Background and aims Cirrhosis entails high risk of serious infections and abated efficiency of vaccination, but the underlying mechanisms are only partially understood. This study aimed at characterizing innate and adaptive immune functions, including antigen-specific T cell responses to COVID-19 vaccination, in patients with compensated and decompensated cirrhosis. Methods Immune phenotype and function in peripheral blood from 42 cirrhotic patients and 44 age-matched healthy controls were analysed after two doses of the mRNA-based COVID-19 vaccines [BNT162b2 (Pfizer BioNTech) or mRNA-1273 (Moderna)]. Results Cirrhotic patients showed significantly reduced blood counts of antigen-presenting dendritic cells (DC) and high counts of monocytic myeloid-derived suppressor cells (M-MDSC) as compared to healthy controls. In addition, monocytic cells recovered from cirrhotic patients showed impaired expression of the antigen-presenting molecule HLA-DR and the co-stimulatory molecule CD86 upon Toll-like receptor (TLR) stimulation. These features were more prominent in patients with decompensated cirrhosis (Child-Pugh classes B & C). Interestingly, while patients with compensated cirrhosis (Child-Pugh class A) showed an inflammatory profile with myeloid cells producing the proinflammatory cytokines IL-6 and TNF, decompensated patients produced reduced levels of these cytokines. Cirrhotic patients, in particular those with more advanced end-stage liver disease, mounted reduced antigen-specific T cell reactivity to COVID-19 vaccination. Vaccine efficiency inversely correlated with levels of M-MDSC. Conclusion These results implicate MDSC as mediators of immunosuppression, with ensuing deficiency of vaccine-specific T cell responses, in cirrhosis.
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Affiliation(s)
- Andreas Törnell
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Elin Blick
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
| | - Samer Al-Dury
- Department of Medicine, Gastroenterology and Hepatology Unit, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Hanna Grauers Wiktorin
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johan Waern
- Department of Medicine, Gastroenterology and Hepatology Unit, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Johan Ringlander
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sigrun Einarsdottir
- Department of Hematology and Coagulation, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Magnus Lindh
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kristoffer Hellstrand
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Martin Lagging
- Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Microbiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anna Martner
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Onerup A, Mehlig K, Ekblom‐Bak E, Lissner L, Börjesson M, Åberg M. Cardiorespiratory fitness and BMI measured in youth and 5-year mortality after site-specific cancer diagnoses in men-A population-based cohort study with register linkage. Cancer Med 2023; 12:20000-20014. [PMID: 37732468 PMCID: PMC10587926 DOI: 10.1002/cam4.6553] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/30/2023] [Accepted: 09/08/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Our aim was to assess associations between cardiorespiratory fitness (CRF) and body mass index (BMI) in youth and 5-year mortality after site-specific cancer diagnoses in men. METHODS Men with cancer from a population who underwent military conscription at ages 16-25 during 1968-2005 in Sweden were included. CRF was assessed as maximal aerobic workload on a cycle ergometer test and was classified as low, moderate, or high. BMI (kg/m2 ) was classified as underweight (<18.5), normal weight (18.5-24.9), overweight (25-29.9), or obesity (>30). Conscription data were linked with register data on cancer diagnosis and mortality. Analyses included CRF, BMI, date of diagnosis, and age, year, and center for conscription. RESULTS A total of 84,621 cancer cases were included. Mean age at diagnosis was 52 years. Follow-up data were available during a mean of 6.5 years. There were linear protective associations between CRF and mortality after any cancer diagnosis (hazard ratio [HR] for high vs. low CRF 0.70), malignant skin cancer (HR 0.80), non-Hodgkin lymphoma (HR 0.78), and cancer in the lungs (HR 0.80), head and neck (HR 0.68), pancreas (HR 0.83), stomach (HR 0.78), liver (HR 0.84), rectum (HR 0.79), and bladder (HR 0.71). Overweight and/or obesity were associated with increased mortality after any cancer (HR for obesity vs. normal weight 1.89), malignant skin cancer (HR 2.03), Hodgkin lymphoma (HR 2.86) and cancer in the head and neck (HR 1.38), thyroid (HR 3.04), rectum (HR 1.53), kidney (HR 1.90), bladder (HR 2.10), and prostate (HR 2.44). CONCLUSION We report dose-dependent associations between CRF and BMI in youth and mortality after site-specific cancer diagnoses in men. The associations with mortality could be due to both cancer inhibition and an improved tolerance to withstand cancer treatment. These results strengthen the incentive for public health efforts aimed at establishing a high CRF and normal weight in youth.
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Affiliation(s)
- Aron Onerup
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Department of Pediatric Oncology, Region Västra GötalandSahlgrenska University HospitalGothenburgSweden
| | - Kirsten Mehlig
- School of Public Health and Community Medicine, Institute of MedicineUniversity of GothenburgGothenburgSweden
| | - Elin Ekblom‐Bak
- Department of Physical activity and HealthThe Swedish School of Sport and Health SciencesStockholmSweden
| | - Lauren Lissner
- School of Public Health and Community Medicine, Institute of MedicineUniversity of GothenburgGothenburgSweden
| | - Mats Börjesson
- Department of Molecular and Clinical Medicine, Center for Lifestyle Intervention, Sahlgrenska AcademyGothenburg UniversityGothenburgSweden
- Department of MGAÖRegion of Västra Götaland, Sahlgrenska University HospitalGothenburgSweden
| | - Maria Åberg
- School of Public Health and Community Medicine, Institute of MedicineUniversity of GothenburgGothenburgSweden
- Region Västra Götaland, RegionhälsanGothenburgSweden
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Abouzayed A, Seitova K, Lundmark F, Bodenko V, Oroujeni M, Tolmachev V, Rosenström U, Orlova A. 177Lu-labeled PSMA targeting therapeutic with optimized linker for treatment of disseminated prostate cancer; evaluation of biodistribution and dosimetry. Front Oncol 2023; 13:1221103. [PMID: 37829345 PMCID: PMC10565663 DOI: 10.3389/fonc.2023.1221103] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 09/07/2023] [Indexed: 10/14/2023] Open
Abstract
Introduction Prostate specific membrane antigen (PSMA), highly expressed in metastatic castration-resistant prostate cancer (mCRPC), is an established therapeutic target. Theranostic PSMA-targeting agents are widely used in patient management and has shown improved outcomes for mCRPC patients. Earlier, we optimized a urea-based probe for radionuclide visualization of PSMA-expression in vivo using computer modeling. With the purpose to develop a targeting agent equally suitable for radionuclide imaging and therapy, the agent containing DOTA chelator was designed (BQ7876). The aim of the study was to test the hypothesis that 177Lu-labeled BQ7876 possesses target binding and biodistribution properties potentially enabling its use for radiotherapy. Methods BQ7876 was synthesized and labeled with Lu-177. Specificity and affinity of [177Lu]Lu-BQ7876 to PSMA-expressing PC3-pip cells was evaluated and its processing after binding to cells was studied. Animal studies in mice were performed to assess its biodistribution in vivo, target specificity and dosimetry. [177Lu]Lu-PSMA-617 was simultaneously evaluated for comparison. Results BQ7876 was labeled with Lu-177 with radiochemical yield >99%. Its binding to PSMA was specific in vitro and in vivo when tested in antigen saturation conditions as well as in PSMA-negative PC-3 tumors. The binding of [177Lu]Lu-BQ7876 to living cells was characterized by rapid association, while the dissociation included a rapid and a slow phase with affinities KD1 = 3.8 nM and KD2 = 25 nM. The half-maximal inhibitory concentration for natLu-BQ7876 was 59 nM that is equal to 61 nM for natLu-PSMA-617. Cellular processing of [177Lu]Lu-BQ7876 was accompanied by slow internalization. [177Lu]Lu-BQ7876 was cleared from blood and normal tissues rapidly. Initial elevated uptake in kidneys decreased rapidly, and by 3 h post injection, the renal uptake (13 ± 3%ID/g) did not differ significantly from tumor uptake (9 ± 3%ID/g). Tumor uptake was stable between 1 and 3 h followed by a slow decline. The highest absorbed dose was in kidneys, followed by organs and tissues in abdomen. Discussion Biodistribution studies in mice demonstrated that targeting properties of [177Lu]Lu-BQ7876 are not inferior to properties of [177Lu]Lu-PSMA-617, but do not offer any decisive advantages.
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Affiliation(s)
- Ayman Abouzayed
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Kamila Seitova
- Scientific and Research Laboratory of Chemical and Pharmaceutical Research, Siberian State Medical University, Tomsk, Russia
- Research Centrum for Oncotheranostics, Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk, Russia
| | - Fanny Lundmark
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Vitalina Bodenko
- Scientific and Research Laboratory of Chemical and Pharmaceutical Research, Siberian State Medical University, Tomsk, Russia
- Research Centrum for Oncotheranostics, Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk, Russia
| | - Maryam Oroujeni
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Affibody AB, Solna, Sweden
| | - Vladimir Tolmachev
- Research Centrum for Oncotheranostics, Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk, Russia
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Ulrika Rosenström
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Anna Orlova
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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Labastida D, Ingvarsson PK, Rendón-Anaya M. Dissecting the genetic basis of drought responses in common bean using natural variation. Front Plant Sci 2023; 14:1143873. [PMID: 37780498 PMCID: PMC10538545 DOI: 10.3389/fpls.2023.1143873] [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] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 07/27/2023] [Indexed: 10/03/2023]
Abstract
The common bean (Phaseolus vulgaris L) is the most important legume for human consumption, contributing 30% of the total daily protein intake in developing countries. A major limitation for its cultivation is drought, which causes more than 60% of the annual losses. Among physiological adaptations to drought, delaying senescence and extending the photosynthetic capacity can improve crop productivity. This strategy is known as functional "stay-green" (SG) and has been discussed as a goal in plant breeding to alleviate the loss of yield under water scarcity conditions. The genetic components behind SG traits have been explored specially in cereals, but they are to date poorly studied in the common bean. For this, we screened 71 common bean cultivars belonging to the three most important gene-pools, Mesoamerica, Andes and Europe, selected to cover the natural variation of the species. Phenotyping experiments under terminal drought during long-days in greenhouse conditions, identified six photoperiod insensitive cultivars of European origin with a clear SG phenotype. Using SNP data produced from whole genome re-sequencing data, we obtained 10 variants significantly associated to the SG phenotype on chromosomes 1, 3, 7, 8, 9 and 10 that are in close proximity to gene models with functional annotations related to hormone signaling and anti-oxidant production. Calculating pairwise FST between subgroups of cultivars divided according to their drought response (susceptibility, escape, recovery or SG), we identified up to 29 genomic windows accounting for 1,45Mb that differentiate SG cultivars; these signals were especially strong on chromosomes 1, 5 and 10. Within these windows, we found genes directly involved in photosynthetic processes and trehalose synthesis. Altogether, these signals represent good targets for further characterization and highlight the multigenic nature of the SG response in legumes.
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Affiliation(s)
- Diana Labastida
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
- Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden
| | - Pär K. Ingvarsson
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
| | - Martha Rendón-Anaya
- Linnean Centre for Plant Biology, Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Science, Uppsala, Sweden
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Cassidy JR, Voss G, Underbjerg KR, Persson M, Ceder Y. Expression of microRNA-379 reduces metastatic spread of prostate cancer. Front Oncol 2023; 13:1252915. [PMID: 37781173 PMCID: PMC10539900 DOI: 10.3389/fonc.2023.1252915] [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: 07/04/2023] [Accepted: 08/25/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction Prostate cancer (PCa) is the most common type of cancer in males, and the metastatic form is a leading cause of death worldwide. There are currently no curative treatments for this subset of patients. To decrease the mortality of this disease, greater focus must be placed on developing therapeutics to reduce metastatic spread. We focus on dissemination to the bone since this is both the most common site of metastatic spread and associated with extreme pain and discomfort for patients. Our strategy is to exploit microRNAs (miRNAs) to disrupt the spread of primary PCa to the bone. Methods PCa cell lines were transduced to overexpress microRNA-379 (miR-379). These transduced PCa cells were assessed using cell growth, migration, colony formation and adhesion assays. We also performed in vivo intracardiac injections to look at metastatic spread in NSG mice. A cytokine array was also performed to identify targets of miR-379 that may drive metastatic spread. Results PCa cells with increased levels of miR-379 showed a significant decrease in proliferation, migration, colony formation, and adhesion to bone cells in vitro. In vivo miR-379 overexpression in PC3 cells significantly decreased metastatic spread to bone and reduced levels of miR-379 were seen in patients with metastases. We identified GDF-15 to be secreted from osteoblasts when grown in conditioned media from PCa cells with reduced miR-379 levels. Discussion Taken together, our in vitro and in vivo functional assays support a role for miR-379 as a tumour suppressor. A potential mechanism is unravelled whereby miR-379 deregulation in PCa cells affects the secretion of GDF-15 from osteoblasts which in turn facilitates the metastatic establishment in bone. Our findings support the potential role of miR-379 as a therapeutic solution for prostate cancer.
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Affiliation(s)
| | | | | | | | - Yvonne Ceder
- Department of Laboratory Medicine, Division of Translational Cancer Research, Lund University, Lund, Sweden
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Gupta P, Sághy T, Nordqvist J, Nilsson J, Carlsten H, Horkeby K, Henning P, Engdahl C. Impact of estrogen on IgG glycosylation and serum protein glycosylation in a murine model of healthy postmenopause. Front Endocrinol (Lausanne) 2023; 14:1243942. [PMID: 37766692 PMCID: PMC10519799 DOI: 10.3389/fendo.2023.1243942] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 08/07/2023] [Indexed: 09/29/2023] Open
Abstract
Introduction The glycosylation of immunoglobulin (Ig) G regulates IgG interaction capability with Fc gamma receptors found in all immune cells. In pathogenic conditions, estrogen can impact IgG levels and glycosylation. Following menopause, when estrogen levels decline affecting the immune system and potentially leading to a heightened susceptibility of immune activation. Purpose In this study, we aim to determine if estrogen levels can regulate IgG glycosylation in postmenopausal healthy situations. Methods Mice were ovariectomized to simulate an estrogen-deficient postmenopausal status and then treated with 17-beta-estradiol (E2) at different doses and different administration strategies. Results Using a highly sensitive liquid chromatography-tandem mass spectrometry (MS/MS) glycoproteomic method, we demonstrated that E2 treatment increased the degree of glycosylation on IgG-Fc with both galactosylation and sialylation in the position required for interaction with Fc gamma receptors. We also observed that only long-term estrogen deficiency reduces IgG levels and that estrogen status had no impact on total IgG sialylation on both Fab and Fc domains or general glycoprotein sialylation evaluated by ELISA. Furthermore, E2 status did not affect the total sialic acid content of total cells in lymphoid organs and neither B cells nor plasma cells. Conclusion The study concluded that E2 treatment does not affect total serum glycoprotein sialylation but alters IgG glycosylation, including IgG sialylation, implying that estrogen functions as an intrinsic modulator of IgG sialylation and could thereby be one pathway by which estrogen modulates immunity.
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Affiliation(s)
- Priti Gupta
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Osteoporosis Centre and Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Gothenburg, Sweden
| | - Tibor Sághy
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Osteoporosis Centre and Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Gothenburg, Sweden
| | - Jauquline Nordqvist
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Jonas Nilsson
- Proteomics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hans Carlsten
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Karin Horkeby
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Osteoporosis Centre and Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Petra Henning
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Osteoporosis Centre and Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Cecilia Engdahl
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Sahlgrenska Osteoporosis Centre and Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Gothenburg, Sweden
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Zöller B, Manderstedt E, Lind‐Halldén C, Halldén C. Bioinformatic and rare-variant collapsing analyses for type 1 and type 2 diabetes in the UK Biobank reveal novel pleiotropic susceptibility loci. J Diabetes 2023; 15:799-802. [PMID: 37528512 PMCID: PMC10509505 DOI: 10.1111/1753-0407.13452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 07/19/2023] [Indexed: 08/03/2023] Open
Affiliation(s)
- Bengt Zöller
- Center for Primary Health Care Research, Department of Clinical SciencesLund University and Region SkåneMalmöSweden
| | - Eric Manderstedt
- Center for Primary Health Care Research, Department of Clinical SciencesLund University and Region SkåneMalmöSweden
| | - Christina Lind‐Halldén
- Department of Environmental Science and BioscienceKristianstad UniversityKristianstadSweden
| | - Christer Halldén
- Center for Primary Health Care Research, Department of Clinical SciencesLund University and Region SkåneMalmöSweden
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Cinquina V, Keimpema E, Pollak DD, Harkany T. Adverse effects of gestational ω-3 and ω-6 polyunsaturated fatty acid imbalance on the programming of fetal brain development. J Neuroendocrinol 2023; 35:e13320. [PMID: 37497857 PMCID: PMC10909496 DOI: 10.1111/jne.13320] [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: 11/27/2022] [Revised: 05/18/2023] [Accepted: 06/10/2023] [Indexed: 07/28/2023]
Abstract
Obesity is a key medical challenge of our time. The increasing number of children born to overweight or obese women is alarming. During pregnancy, the circulation of the mother and her fetus interact to maintain the uninterrupted availability of essential nutrients for fetal organ development. In doing so, the mother's dietary preference determines the amount and composition of nutrients reaching the fetus. In particular, the availability of polyunsaturated fatty acids (PUFAs), chiefly their ω-3 and ω-6 subclasses, can change when pregnant women choose a specific diet. Here, we provide a succinct overview of PUFA biochemistry, including exchange routes between ω-3 and ω-6 PUFAs, the phenotypes, and probable neurodevelopmental disease associations of offspring born to mothers consuming specific PUFAs, and their mechanistic study in experimental models to typify signaling pathways, transcriptional, and epigenetic mechanisms by which PUFAs can imprint long-lasting modifications to brain structure and function. We emphasize that the ratio, rather than the amount of individual ω-3 or ω-6 PUFAs, might underpin physiologically correct cellular differentiation programs, be these for neurons or glia, during pregnancy. Thereupon, the PUFA-driven programming of the brain is contextualized for childhood obesity, metabolic, and endocrine illnesses.
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Affiliation(s)
- Valentina Cinquina
- Department of Molecular NeurosciencesCenter for Brain Research, Medical University of ViennaViennaAustria
| | - Erik Keimpema
- Department of Molecular NeurosciencesCenter for Brain Research, Medical University of ViennaViennaAustria
| | - Daniela D. Pollak
- Department of Neurophysiology and NeuropharmacologyCenter for Physiology and Pharmacology, Medical University of ViennaViennaAustria
| | - Tibor Harkany
- Department of Molecular NeurosciencesCenter for Brain Research, Medical University of ViennaViennaAustria
- Deaprtment of NeuroscienceBiomedicum 7D, Karolinska InstitutetStockholmSweden
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Li L, Yao H, Zhang L, Garcia‐Argibay M, Du Rietz E, Brikell I, Solmi M, Cortese S, Ramos‐Quiroga JA, Ribasés M, Chang Z, Larsson H. Attention-deficit/hyperactivity disorder is associated with increased risk of cardiovascular diseases: A systematic review and meta-analysis. JCPP Adv 2023; 3:e12158. [PMID: 37720588 PMCID: PMC10501695 DOI: 10.1002/jcv2.12158] [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: 10/28/2022] [Accepted: 02/16/2023] [Indexed: 09/19/2023] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) often co-occurs with other psychiatric and physical diseases. However, available evidence on associations between ADHD and cardiovascular diseases (CVDs) is mixed. To systematically review, quantitatively synthesize, and appraise available evidence on the link between ADHD with CVDs, we searched relevant articles in PubMed, Embase, PsycINFO, and Web of Science from inception to May 1, 2022. Study quality was assessed by using the Newcastle-Ottawa Scale, and random-effects model meta-analyses were performed. A total of 18,391,169 (ADHD: n = 421,224) individuals from 11 studies were included in our systematic review and 8,196,648 (ADHD = 332,619) individuals from five studies were included in the main meta-analysis of adjusted estimates. Pooled estimates showed that ADHD was significantly associated with an increased risk of CVDs in analyses based on adjusted effect size (odds ratio (OR) = 1.96; 95% confidence interval (CI) = 1.19-2.23, Q = 140.74, P Q < 0.001, I 2 = 97.2%). When restricted among adults, the heterogeneity declined to null (OR = 1.73; 95% CI = 1.14-2.62, Q = 6.28, P Q = 0.10, I 2 = 6.28%), suggesting age might be the main source of heterogeneity. In subgroup analyses, we found increased risk of CVDs associated with ADHD across age groups, type of CVDs, and data sources. This systematic review and meta-analyses indicate that ADHD is associated with increased risk for CVDs, but further studies with various study designs are warranted to advance the understanding of the underlying mechanisms for the observed association between ADHD and CVDs. Additional research is also needed to resolve the role of ADHD medications which remains unclear due to the limited number of primary studies exploring this issue.
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Affiliation(s)
- Lin Li
- School of Medical SciencesÖrebro UniversityÖrebroSweden
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Honghui Yao
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Le Zhang
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | | | - Ebba Du Rietz
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Isabell Brikell
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
- Department of BiomedicineAarhus UniversityAarhusDenmark
| | - Marco Solmi
- Department of PsychiatryUniversity of OttawaOttawaOntarioCanada
- Department of Mental HealthThe Ottawa HospitalOttawaOntarioCanada
- Ottawa Hospital Research Institute (OHRI) Clinical Epidemiology Program University of OttawaOttawaOntarioCanada
- Department of Child and Adolescent PsychiatryCharité UniversitätsmedizinBerlinGermany
- Centre for Innovation in Mental Health‐Developmental LabSchool of PsychologyUniversity of SouthamptonSouthamptonUK
| | - Samuele Cortese
- Centre for Innovation in Mental Health‐Developmental LabSchool of PsychologyUniversity of SouthamptonSouthamptonUK
- Solent NHS TrustSouthamptonUK
- Hassenfeld Children's Hospital at NYU LangoneNew York University Child Study CenterNew YorkHampshireUSA
- Division of Psychiatry and Applied PsychologySchool of MedicineUniversity of NottinghamNottinghamUK
| | - J. Antoni Ramos‐Quiroga
- Department of Psychiatry and Forensic MedicineUniversitat Autònoma de BarcelonaBarcelonaSpain
- Biomedical Network Research Centre on Mental Health (CIBERSAM)MadridSpain
- Department of Mental HealthHospital Universitari Vall d'HebronBarcelonaSpain
- Psychiatric Genetics UnitGroup of PsychiatryMental Health and AddictionVall d’Hebron Research Institute (VHIR)Universitat Autònoma de BarcelonaBarcelonaSpain
| | - Marta Ribasés
- Biomedical Network Research Centre on Mental Health (CIBERSAM)MadridSpain
- Department of Mental HealthHospital Universitari Vall d'HebronBarcelonaSpain
- Psychiatric Genetics UnitGroup of PsychiatryMental Health and AddictionVall d’Hebron Research Institute (VHIR)Universitat Autònoma de BarcelonaBarcelonaSpain
- Department of Genetics, Microbiology, and StatisticsFaculty of BiologyUniversitat de BarcelonaBarcelonaSpain
| | - Zheng Chang
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Henrik Larsson
- School of Medical SciencesÖrebro UniversityÖrebroSweden
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
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Kalomoiri M, Prakash CR, Lagström S, Hauschulz K, Ewing E, Shchetynsky K, Kular L, Needhamsen M, Jagodic M. Simultaneous detection of DNA variation and methylation at HLA class II locus and immune gene promoters using targeted SureSelect Methyl-Sequencing. Front Immunol 2023; 14:1251772. [PMID: 37691926 PMCID: PMC10484099 DOI: 10.3389/fimmu.2023.1251772] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/02/2023] [Indexed: 09/12/2023] Open
Abstract
The Human Leukocyte Antigen (HLA) locus associates with a variety of complex diseases, particularly autoimmune and inflammatory conditions. The HLA-DR15 haplotype, for example, confers the major risk for developing Multiple Sclerosis in Caucasians, pinpointing an important role in the etiology of this chronic inflammatory disease of the central nervous system. In addition to the protein-coding variants that shape the functional HLA-antigen-T cell interaction, recent studies suggest that the levels of HLA molecule expression, that are epigenetically controlled, also play a role in disease development. However, deciphering the exact molecular mechanisms of the HLA association has been hampered by the tremendous genetic complexity of the locus and a lack of robust approaches to investigate it. Here, we developed a method to specifically enrich the genomic DNA from the HLA class II locus (chr6:32,426,802-34,167,129) and proximal promoters of 2,157 immune-relevant genes, utilizing the Agilent RNA-based SureSelect Methyl-Seq Capture related method, followed by sequencing to detect genetic and epigenetic variation. We demonstrated successful simultaneous detection of the genetic variation and quantification of DNA methylation levels in HLA locus. Moreover, by the detection of differentially methylated positions in promoters of immune-related genes, we identified relevant pathways following stimulation of cells. Taken together, we present a method that can be utilized to study the interplay between genetic variance and epigenetic regulation in the HLA class II region, potentially, in a wide disease context.
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Affiliation(s)
- Maria Kalomoiri
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Chandana Rao Prakash
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sonja Lagström
- Diagnostics and Genomics Group, Agilent Technologies Sweden AB, Sundbyberg, Sweden
| | - Kai Hauschulz
- Diagnostics and Genomics Group, Agilent Technologies Deutschland GmbH, Waldbronn, Germany
| | - Ewoud Ewing
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Klementy Shchetynsky
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lara Kular
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maria Needhamsen
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maja Jagodic
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
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Dukic E, van Maldegem KA, Shaikh KM, Fukuda K, Töpel M, Solymosi K, Hellsten J, Hansen TH, Husted S, Higgins J, Sano S, Ishijima S, Spetea C. Chloroplast magnesium transporters play essential but differential roles in maintaining magnesium homeostasis. Front Plant Sci 2023; 14:1221436. [PMID: 37692441 PMCID: PMC10484576 DOI: 10.3389/fpls.2023.1221436] [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] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/07/2023] [Indexed: 09/12/2023]
Abstract
Magnesium (Mg2+) is essential for photosynthesis in the chloroplasts of land plants and algae. Being the central ion of chlorophyll, cofactor and activator of many photosynthetic enzymes including RuBisCO, magnesium-deficient plants may suffer from leaf chlorosis symptoms and retarded growth. Therefore, the chloroplast Mg2+ concentration is tightly controlled by magnesium transport proteins. Recently, three different transporters from two distinct families have been identified in the chloroplast inner envelope of the model plant Arabidopsis thaliana: MGT10, MGR8, and MGR9. Here, we assess the individual roles of these three proteins in maintaining chloroplast Mg2+ homeostasis and regulating photosynthesis, and if their role is conserved in the model green alga Chlamydomonas reinhardtii. Phylogenetic analysis and heterologous expression revealed that the CorC-like MGR8 and MGR9 transport Mg2+ by a different mechanism than the CorA-like MGT10. MGR8 and MGT10 genes are highest expressed in leaves, indicating a function in chloroplast Mg2+ transport. MGR9 is important for chloroplast function and plant adaptation in conditions of deficiency or excess of Mg2+. Transmission electron microscopy indicated that MGT10 plays a differential role in thylakoid stacking than MGR8 and MGR9. Furthermore, we report that MGR8, MGR9, and MGT10 are involved in building up the pH gradient across the thylakoid membrane and activating photoprotection in conditions of excess light, however the mechanism has not been resolved yet. While there are no chloroplast MGR-like transporters in Chlamydomonas, we show that MRS4 is a homolog of MGT10, that is required for photosynthesis and cell growth. Taken together, our findings reveal that the studied Mg2+ transporters play essential but differential roles in maintaining chloroplast Mg2+ homeostasis.
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Affiliation(s)
- Emilija Dukic
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Kim A. van Maldegem
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Kashif Mohd Shaikh
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Kento Fukuda
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Mats Töpel
- Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden
- IVL Swedish Environmental Research Institute, Gothenburg, Sweden
| | - Katalin Solymosi
- Department of Plant Anatomy, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Jonna Hellsten
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Thomas Hesselhøj Hansen
- Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Søren Husted
- Copenhagen Plant Science Centre, Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - John Higgins
- Department of Geosciences, Princeton University, Princeton, NJ, United States
| | - Satoshi Sano
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Sumio Ishijima
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Cornelia Spetea
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
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Malmhäll-Bah E, Andersson KM, Erlandsson MC, Silfverswärd ST, Pullerits R, Bokarewa MI. Metabolic signature and proteasome activity controls synovial migration of CDC42hiCD14 + cells in rheumatoid arthritis. Front Immunol 2023; 14:1187093. [PMID: 37662900 PMCID: PMC10469903 DOI: 10.3389/fimmu.2023.1187093] [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: 03/15/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Objective Activation of Rho-GTPases in macrophages causes inflammation and severe arthritis in mice. In this study, we explore if Rho-GTPases define the joint destination of pathogenic leukocytes, the mechanism by which they perpetuate rheumatoid arthritis (RA), and how JAK inhibition mitigates these effects. Methods CD14+ cells of 136 RA patients were characterized by RNA sequencing and cytokine measurement to identify biological processes and transcriptional regulators specific for CDC42 hiCD14+ cells, which were summarized in a metabolic signature (MetSig). The effect of hypoxia and IFN-γ signaling on the metabolic signature of CD14+ cells was assessed experimentally. To investigate its connection with joint inflammation, the signature was translated into the single-cell characteristics of CDC42 hi synovial tissue macrophages. The sensitivity of MetSig to the RA disease activity and the treatment effect were assessed experimentally and clinically. Results CDC42 hiCD14+ cells carried MetSig of genes functional in the oxidative phosphorylation and proteasome-dependent cell remodeling, which correlated with the cytokine-rich migratory phenotype and antigen-presenting capacity of these cells. Integration of CDC42 hiCD14+ and synovial macrophages marked with MetSig revealed the important role of the interferon-rich environment and immunoproteasome expression in the homeostasis of these pathogenic macrophages. The CDC42 hiCD14+ cells were targeted by JAK inhibitors and responded with the downregulation of immunoproteasome and MHC-II molecules, which disintegrated the immunological synapse, reduced cytokine production, and alleviated arthritis. Conclusion This study shows that the CDC42-related MetSig identifies the antigen-presenting CD14+ cells that migrate to joints to coordinate autoimmunity. The accumulation of CDC42 hiCD14+ cells discloses patients perceptive to the JAKi treatment.
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Affiliation(s)
- Eric Malmhäll-Bah
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Karin M.E. Andersson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Malin C. Erlandsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Rheumatology Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sofia T. Silfverswärd
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Rille Pullerits
- Rheumatology Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Maria I. Bokarewa
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Rheumatology Clinic, Sahlgrenska University Hospital, Gothenburg, Sweden
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Rezayee F, Eisfeldt J, Skaftason A, Öfverholm I, Sayyab S, Syvänen AC, Maqbool K, Lilljebjörn H, Johansson B, Olsson-Arvidsson L, Pietras CO, Staffas A, Palmqvist L, Fioretos T, Cavelier L, Fogelstrand L, Nordlund J, Wirta V, Rosenquist R, Barbany G. Feasibility to use whole-genome sequencing as a sole diagnostic method to detect genomic aberrations in pediatric B-cell acute lymphoblastic leukemia. Front Oncol 2023; 13:1217712. [PMID: 37664045 PMCID: PMC10470829 DOI: 10.3389/fonc.2023.1217712] [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: 05/05/2023] [Accepted: 07/17/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction The suitability of whole-genome sequencing (WGS) as the sole method to detect clinically relevant genomic aberrations in B-cell acute lymphoblastic leukemia (ALL) was investigated with the aim of replacing current diagnostic methods. Methods For this purpose, we assessed the analytical performance of 150 bp paired-end WGS (90x leukemia/30x germline). A set of 88 retrospective B-cell ALL samples were selected to represent established ALL subgroups as well as ALL lacking stratifying markers by standard-of-care (SoC), so-called B-other ALL. Results Both the analysis of paired leukemia/germline (L/N)(n=64) as well as leukemia-only (L-only)(n=88) detected all types of aberrations mandatory in the current ALLTogether trial protocol, i.e., aneuploidies, structural variants, and focal copy-number aberrations. Moreover, comparison to SoC revealed 100% concordance and that all patients had been assigned to the correct genetic subgroup using both approaches. Notably, WGS could allocate 35 out of 39 B-other ALL samples to one of the emerging genetic subgroups considered in the most recent classifications of ALL. We further investigated the impact of high (90x; n=58) vs low (30x; n=30) coverage on the diagnostic yield and observed an equally perfect concordance with SoC; low coverage detected all relevant lesions. Discussion The filtration of the WGS findings with a short list of genes recurrently rearranged in ALL was instrumental to extract the clinically relevant information efficiently. Nonetheless, the detection of DUX4 rearrangements required an additional customized analysis, due to multiple copies of this gene embedded in the highly repetitive D4Z4 region. We conclude that the diagnostic performance of WGS as the standalone method was remarkable and allowed detection of all clinically relevant genomic events in the diagnostic setting of B-cell ALL.
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Affiliation(s)
- Fatemah Rezayee
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Jesper Eisfeldt
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Aron Skaftason
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Ingegerd Öfverholm
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Shumaila Sayyab
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Ann Christine Syvänen
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Khurram Maqbool
- Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Henrik Lilljebjörn
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Bertil Johansson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Genetics, Pathology, and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden
| | - Linda Olsson-Arvidsson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Genetics, Pathology, and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden
| | | | - Anna Staffas
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lars Palmqvist
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Thoas Fioretos
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Department of Clinical Genetics, Pathology, and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden
- Clinical Genomics Lund, Science for Life Laboratory, Lund University, Lund, Sweden
| | - Lucia Cavelier
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Linda Fogelstrand
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jessica Nordlund
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Valtteri Wirta
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
- Genomic Medicine Center Karolinska, Karolinska University Hospital, Stockholm, Sweden
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
- Genomic Medicine Center Karolinska, Karolinska University Hospital, Stockholm, Sweden
| | - Gisela Barbany
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
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Gerner E, Giraldo-Osorno PM, Johansson Loo A, Firdaus R, Ben Amara H, Werthén M, Palmquist A, Thomsen P, Omar O, Almqvist S, Trobos M. Targeting Pseudomonas aeruginosa quorum sensing with sodium salicylate modulates immune responses in vitro and in vivo. Front Cell Infect Microbiol 2023; 13:1183959. [PMID: 37614559 PMCID: PMC10442818 DOI: 10.3389/fcimb.2023.1183959] [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: 03/10/2023] [Accepted: 07/18/2023] [Indexed: 08/25/2023] Open
Abstract
Introduction Chronic infections are a major clinical challenge in hard-to-heal wounds and implanted devices. Pseudomonas aeruginosa is a common causative pathogen that produces numerous virulence factors. Due to the increasing problem of antibiotic resistance, new alternative treatment strategies are needed. Quorum sensing (QS) is a bacterial communication system that regulates virulence and dampens inflammation, promoting bacterial survival. QS inhibition is a potent strategy to reduce bacterial virulence and alleviate the negative impact on host immune response. Aim This study investigates how secreted factors from P. aeruginosa PAO1, cultured in the presence or absence of the QS inhibitor sodium salicylate (NaSa), influence host immune response. Material and methods In vitro, THP-1 macrophages and neutrophil-like HL-60 cells were used. In vivo, discs of titanium were implanted in a subcutaneous rat model with local administration of P. aeruginosa culture supernatants. The host immune response to virulence factors contained in culture supernatants (+/-NaSa) was characterized through cell viability, migration, phagocytosis, gene expression, cytokine secretion, and histology. Results In vitro, P. aeruginosa supernatants from NaSa-containing cultures significantly increased THP-1 phagocytosis and HL-60 cell migration compared with untreated supernatants (-NaSa). Stimulation with NaSa-treated supernatants in vivo resulted in: (i) significantly increased immune cell infiltration and cell attachment to titanium discs; (ii) increased gene expression of IL-8, IL-10, ARG1, and iNOS, and (iii) increased GRO-α protein secretion and decreased IL-1β, IL-6, and IL-1α secretion, as compared with untreated supernatants. Conclusion In conclusion, treating P. aeruginosa with NaSa reduces the production of virulence factors and modulates major immune events, such as promoting phagocytosis and cell migration, and decreasing the secretion of several pro-inflammatory cytokines.
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Affiliation(s)
- Erik Gerner
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
- Mölnlycke Health Care AB, Gothenburg, Sweden
| | - Paula Milena Giraldo-Osorno
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Anna Johansson Loo
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rininta Firdaus
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Heithem Ben Amara
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Werthén
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Omar Omar
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Margarita Trobos
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Centre for Antibiotic Resistance Research in Gothenburg (CARe), Gothenburg, Sweden
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