LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 74

Search options

  1. Article ; Online: The

    Cornillet, Martin / Villard, Christina / Rorsman, Fredrik / Molinaro, Antonio / Nilsson, Emma / Kechagias, Stergios / von Seth, Erik / Bergquist, Annika

    EClinicalMedicine

    2024  Volume 70, Page(s) 102526

    Abstract: Background: Despite more than 50 years of research and parallel improvements in hepatology and oncology, there is still today neither a treatment to prevent disease progression in primary sclerosing cholangitis (PSC), nor reliable early diagnostic tools ...

    Abstract Background: Despite more than 50 years of research and parallel improvements in hepatology and oncology, there is still today neither a treatment to prevent disease progression in primary sclerosing cholangitis (PSC), nor reliable early diagnostic tools for the associated hepatobiliary cancers. Importantly, the limited understanding of the underlying biological mechanisms in PSC and its natural history not only affects the identification of new drug targets but implies a lack of surrogate markers that hampers the design of clinical trials and the evaluation of drug efficacy. The lack of easy access to large representative well-characterised prospective resources is an important contributing factor to the current situation.
    Methods: We here present the SUPRIM cohort, a national multicentre prospective longitudinal study of unselected PSC patients capturing the representative diversity of PSC phenotypes. We describe the 10-year effort of inclusion and follow-up, an intermediate analysis report including original results, and the associated research resource. All included patients gave written informed consent (recruitment: November 2011-April 2016).
    Findings: Out of 512 included patients, 452 patients completed the five-year follow-up without endpoint outcomes. Liver transplantation was performed in 54 patients (10%) and hepatobiliary malignancy was diagnosed in 15 patients (3%). We draw a comprehensive landscape of the multidimensional clinical and biological heterogeneity of PSC illustrating the diversity of PSC phenotypes. Performances of available predictive scores are compared and perspectives on the continuation of the SUPRIM cohort are provided.
    Interpretation: We envision the SUPRIM cohort as an open-access collaborative resource to accelerate the generation of new knowledge and independent validations of promising ones with the aim to uncover reliable diagnostics, prognostic tools, surrogate markers, and new treatment targets by 2040.
    Funding: This work was supported by the Swedish Cancer Society, Stockholm County Council, and the Cancer Research Funds of Radiumhemmet.
    Language English
    Publishing date 2024-03-11
    Publishing country England
    Document type Journal Article
    ISSN 2589-5370
    ISSN (online) 2589-5370
    DOI 10.1016/j.eclinm.2024.102526
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Dysregulated peripheral proteome reveals NASH-specific signatures identifying patient subgroups with distinct liver biology.

    Stiglund, Natalie / Hagström, Hannes / Stål, Per / Cornillet, Martin / Björkström, Niklas K

    Frontiers in immunology

    2023  Volume 14, Page(s) 1186097

    Abstract: Background and aims: Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. The prognosis may vary from simple steatosis to more severe outcomes such as nonalcoholic steatohepatitis (NASH), liver cirrhosis, and ... ...

    Abstract Background and aims: Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. The prognosis may vary from simple steatosis to more severe outcomes such as nonalcoholic steatohepatitis (NASH), liver cirrhosis, and hepatocellular carcinoma. The understanding of the biological processes leading to NASH is limited and non-invasive diagnostic tools are lacking.
    Methods: The peripheral immunoproteome in biopsy-proven NAFL (n=35) and NASH patients (n=35) compared to matched, normal-weight healthy controls (n=15) was studied using a proximity extension assay, combined with spatial and single cell hepatic transcriptome analysis.
    Results: We identified 13 inflammatory serum proteins that, independent of comorbidities and fibrosis stage, distinguished NASH from NAFL. Analysis of co-expression patterns and biological networks further revealed NASH-specific biological perturbations indicative of temporal dysregulation of IL-4/-13, -10, -18, and non-canonical NF-kβ signaling. Of the identified inflammatory serum proteins, IL-18 and EN-RAGE as well as ST1A1 mapped to hepatic macrophages and periportal hepatocytes, respectively, at the single cell level. The signature of inflammatory serum proteins further permitted identification of biologically distinct subgroups of NASH patients.
    Conclusion: NASH patients have a distinct inflammatory serum protein signature, which can be mapped to the liver parenchyma, disease pathogenesis, and identifies subgroups of NASH patients with altered liver biology.
    MeSH term(s) Humans ; Non-alcoholic Fatty Liver Disease/pathology ; Proteome ; Liver Neoplasms ; Biology
    Chemical Substances Proteome
    Language English
    Publishing date 2023-06-05
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1186097
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Increased Prevalence of Alpha-1-Antitrypsin Deficiency in Patients with Biliary Tract Cancer and Its Associated Clinicopathological Features.

    Cornillet, Martin / Zemack, Helen / Jansson, Hannes / Sparrelid, Ernesto / Ellis, Ewa / Björkström, Niklas K

    Cells

    2023  Volume 12, Issue 12

    Abstract: Alpha-1 antitrypsin deficiency (A1ATD) is underdiagnosed and associated with liver diseases. Here, we genotyped 130 patients with biliary tract cancer (BTC) scheduled for liver resection and found A1ATD in 10.8% of the patients. A1ATD was found in all ... ...

    Abstract Alpha-1 antitrypsin deficiency (A1ATD) is underdiagnosed and associated with liver diseases. Here, we genotyped 130 patients with biliary tract cancer (BTC) scheduled for liver resection and found A1ATD in 10.8% of the patients. A1ATD was found in all BTC subtypes, and patients had similar clinical features as non-A1ATD BTC, not permitting their identification using clinical routine liver tests. In intrahepatic cholangiocarcinoma (iCCA), the abundance of A1AT protein was increased in the tumor and appeared to be influenced by the genomic alterations. On the one hand, BTC with A1ATD had lower perineural invasion at histopathology and displayed a longer survival, suggesting that a deficiency in this protein is associated with a less aggressive phenotype. On the other hand, iCCA with high A1AT expression had more advanced tumor staging and enriched pathways for complement system and extracellular matrix interactions, indicating that A1AT protein might contribute to a more aggressive phenotype. With increased awareness, screening, and basic studies, A1ATD could represent one more layer of stratification for future targeted therapies in BTC.
    MeSH term(s) Humans ; alpha 1-Antitrypsin/genetics ; alpha 1-Antitrypsin/metabolism ; alpha 1-Antitrypsin Deficiency/complications ; alpha 1-Antitrypsin Deficiency/diagnosis ; alpha 1-Antitrypsin Deficiency/epidemiology ; alpha 1-Antitrypsin Deficiency/genetics ; Biliary Tract Neoplasms/etiology ; Biliary Tract Neoplasms/genetics ; Phenotype ; Prevalence
    Chemical Substances alpha 1-Antitrypsin
    Language English
    Publishing date 2023-06-19
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells12121663
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Tissue-specific nonheritable influences drive endometrial immune system variation.

    Bister, Jonna / Filipovic, Iva / Sun, Dan / Crona-Guterstam, Ylva / Cornillet, Martin / Ponzetta, Andrea / Michaëlsson, Jakob / Gidlöf, Sebastian / Ivarsson, Martin A / Strunz, Benedikt / Björkström, Niklas K

    Science immunology

    2024  Volume 9, Issue 94, Page(s) eadj7168

    Abstract: Although human twin studies have revealed the combined contribution of heritable and environmental factors in shaping immune system variability in blood, the contribution of these factors to immune system variability in tissues remains unexplored. The ... ...

    Abstract Although human twin studies have revealed the combined contribution of heritable and environmental factors in shaping immune system variability in blood, the contribution of these factors to immune system variability in tissues remains unexplored. The human uterus undergoes constant regeneration and is exposed to distinct environmental factors. To assess uterine immune system variation, we performed a system-level analysis of endometrial and peripheral blood immune cells in monozygotic twins. Although most immune cell phenotypes in peripheral blood showed high genetic heritability, more variation was found in endometrial immune cells, indicating a stronger influence by environmental factors. Cytomegalovirus infection was identified to influence peripheral blood immune cell variability but had limited effect on endometrial immune cells. Instead, hormonal contraception shaped the local endometrial milieu and immune cell composition with minor influence on the systemic immune system. These results highlight that the magnitude of human immune system variation and factors influencing it can be tissue specific.
    MeSH term(s) Female ; Humans ; Twins, Dizygotic/genetics ; Twins, Monozygotic/genetics ; Endometrium ; Uterus ; Immune System
    Language English
    Publishing date 2024-04-05
    Publishing country United States
    Document type Journal Article
    ISSN 2470-9468
    ISSN (online) 2470-9468
    DOI 10.1126/sciimmunol.adj7168
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Are antibodies to fine specificities of citrullinated peptides/proteins useful for stratification of rheumatoid arthritis patients?

    Nogueira, Leonor / Parra, Emilie / Larrieu, Margaux / Verrouil, Evelyne / Cornillet, Martin

    Clinical & translational immunology

    2021  Volume 10, Issue 7, Page(s) e1288

    Abstract: Background: In rheumatoid arthritis (RA), antibodies to citrullinated protein (ACPA) are believed to be heterogeneous and patient stratification by antibody profiling raised clinical interest for patient management. However, heterogeneity might be ... ...

    Abstract Background: In rheumatoid arthritis (RA), antibodies to citrullinated protein (ACPA) are believed to be heterogeneous and patient stratification by antibody profiling raised clinical interest for patient management. However, heterogeneity might be partially artificial because of the use of heterogeneous methods for ACPA detection. In recent work instead, we found that ACPA were mainly directed towards a single fibrin-derived peptide, β60-74BiotNt, but a comparative analysis with the presence of other ACPA specificities is still lacking.
    Objectives: To present an overview of RA patients' stratification based on the detection of the main ACPA fine specificities with the same method as compared to that of anti-β60-74BiotNt antibodies.
    Methods: Over 4500 measurements were performed with more than 22 standardised ELISAs, sera from 180 RA patients and 200 to 436 non-RA rheumatic disease controls.
    Results: Four to 81% of RA patients had ACPA towards various targets, confirming the heterogeneity of ACPA specificities. However, the subgroups of patients overlapped up to 97% with ACPA levels of correlation coefficients up to 0.8, showing redundancy of some targets. Multiplexing decreased diagnostic specificity from 95% to 64%. Instead, anti-β60-74BiotNt detection identified almost all ACPA-positive patients.
    Conclusions: Antibodies to citrullinated protein multiplexing shows some degree of redundancy and is not suitable for diagnostic purposes. ACPA fine specificities might be less heterogeneous than perceived by sera testing on multiple peptides. Patient stratification largely depends on detection methods and requires standardisation.
    Language English
    Publishing date 2021-07-05
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2694482-0
    ISSN 2050-0068
    ISSN 2050-0068
    DOI 10.1002/cti2.1288
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Increased Prevalence of Alpha-1-Antitrypsin Deficiency in Patients with Biliary Tract Cancer and Its Associated Clinicopathological Features

    Martin Cornillet / Helen Zemack / Hannes Jansson / Ernesto Sparrelid / Ewa Ellis / Niklas K. Björkström

    Cells, Vol 12, Iss 1663, p

    2023  Volume 1663

    Abstract: Alpha-1 antitrypsin deficiency (A1ATD) is underdiagnosed and associated with liver diseases. Here, we genotyped 130 patients with biliary tract cancer (BTC) scheduled for liver resection and found A1ATD in 10.8% of the patients. A1ATD was found in all ... ...

    Abstract Alpha-1 antitrypsin deficiency (A1ATD) is underdiagnosed and associated with liver diseases. Here, we genotyped 130 patients with biliary tract cancer (BTC) scheduled for liver resection and found A1ATD in 10.8% of the patients. A1ATD was found in all BTC subtypes, and patients had similar clinical features as non-A1ATD BTC, not permitting their identification using clinical routine liver tests. In intrahepatic cholangiocarcinoma (iCCA), the abundance of A1AT protein was increased in the tumor and appeared to be influenced by the genomic alterations. On the one hand, BTC with A1ATD had lower perineural invasion at histopathology and displayed a longer survival, suggesting that a deficiency in this protein is associated with a less aggressive phenotype. On the other hand, iCCA with high A1AT expression had more advanced tumor staging and enriched pathways for complement system and extracellular matrix interactions, indicating that A1AT protein might contribute to a more aggressive phenotype. With increased awareness, screening, and basic studies, A1ATD could represent one more layer of stratification for future targeted therapies in BTC.
    Keywords alpha-1 antitrypsin deficiency ; biliary tract cancer ; survival ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  7. Article ; Online: In early rheumatoid arthritis, anticitrullinated peptide antibodies associate with low number of affected joints and rheumatoid factor associates with systemic inflammation.

    Pertsinidou, Eleftheria / Saevarsdottir, Saedis / Manivel, Vivek Anand / Klareskog, Lars / Alfredsson, Lars / Mathsson-Alm, Linda / Hansson, Monika / Cornillet, Martin / Serre, Guy / Holmdahl, Rikard / Skriner, Karl / Jakobsson, Per-Johan / Westerlind, Helga / Askling, Johan / Rönnelid, Johan

    Annals of the rheumatic diseases

    2024  Volume 83, Issue 3, Page(s) 277–287

    Abstract: Objectives: To investigate how individual rheumatoid arthritis (RA) autoantibodies associate with individual signs and symptoms at the time of RA diagnosis.: Methods: IgA, IgG, IgM rheumatoid factor (RF), antibodies against cyclic citrullinated ... ...

    Abstract Objectives: To investigate how individual rheumatoid arthritis (RA) autoantibodies associate with individual signs and symptoms at the time of RA diagnosis.
    Methods: IgA, IgG, IgM rheumatoid factor (RF), antibodies against cyclic citrullinated peptide version 2 (anti-CCP2) and 16 individual antibodies against citrullinated protein (ACPA) reactivities were analysed centrally in baseline sera from 1600 patients with RA classified according to the 1987 American College of Rheumatology (ACR) criteria. These results were related to C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), number of swollen and tender joints (SJC and TJC), 28-joint disease activity scores (DAS28 and DAS28CRP), global disease activity evaluated by the patients and Health Assessment Questionnaire, all obtained at baseline.
    Results: Individually, all autoantibodies except immunoglobulin G (IgG) RF associated with low SJC and TJC and with high ESR. In IgM RF-negative patients, ACPA associated strictly with low number of swollen and tender joints. This association persisted in multiple regression and stratified analyses where IgM and IgA RF instead associated with inflammation expressed as ESR. Among subjects without any ACPA peptide reactivity, there was no association between RF isotypes and ESR. The effect of RF on ESR increased with the number of ACPA reactivities, especially for IgM RF. In patients fulfilling the 1987 ACR criteria without taking RF into account, associations between IgM RF and high ESR, as well as between ACPA and low joint counts, remained.
    Conclusion: Whereas ACPA associate with low counts of affected joints in early RA, RF associates with elevated measures of systemic inflammation in an ACPA-dependent manner. This latter finding corroborates in vitro models of ACPA and RF in immune complex-induced inflammation. These phenotypic associations are independent of classification criteria.
    MeSH term(s) Humans ; Rheumatoid Factor ; Arthritis, Rheumatoid ; Inflammation ; Autoantibodies ; Peptides, Cyclic ; Immunoglobulin G ; Immunoglobulin M ; Immunoglobulin A
    Chemical Substances Rheumatoid Factor (9009-79-4) ; Autoantibodies ; Peptides, Cyclic ; Immunoglobulin G ; Immunoglobulin M ; Immunoglobulin A
    Language English
    Publishing date 2024-02-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 7090-7
    ISSN 1468-2060 ; 0003-4967
    ISSN (online) 1468-2060
    ISSN 0003-4967
    DOI 10.1136/ard-2023-224728
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Phenotypic diversity of human adipose tissue-resident NK cells in obesity.

    Haugstøyl, Martha E / Cornillet, Martin / Strand, Kristina / Stiglund, Natalie / Sun, Dan / Lawrence-Archer, Laurence / Hjellestad, Iren D / Busch, Christian / Mellgren, Gunnar / Björkström, Niklas K / Fernø, Johan

    Frontiers in immunology

    2023  Volume 14, Page(s) 1130370

    Abstract: Natural killer (NK) cells have emerged as key mediators of obesity-related adipose tissue inflammation. However, the phenotype of NK cell subsets residing in human adipose tissue are poorly defined, preventing a detailed understanding of their role in ... ...

    Abstract Natural killer (NK) cells have emerged as key mediators of obesity-related adipose tissue inflammation. However, the phenotype of NK cell subsets residing in human adipose tissue are poorly defined, preventing a detailed understanding of their role in metabolic disorders. In this study, we applied multicolor flow cytometry to characterize CD56
    MeSH term(s) Humans ; CD56 Antigen/metabolism ; Killer Cells, Natural/metabolism ; Phenotype ; Adipose Tissue/metabolism ; Obesity/metabolism
    Chemical Substances CD56 Antigen
    Language English
    Publishing date 2023-02-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1130370
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Preoperative immunological plasma markers TRAIL, CSF1 and TIE2 predict survival after resection for biliary tract cancer.

    Jansson, Hannes / Cornillet, Martin / Sun, Dan / Filipovic, Iva / Sturesson, Christian / O'Rourke, Colm J / Andersen, Jesper B / Björkström, Niklas K / Sparrelid, Ernesto

    Frontiers in oncology

    2023  Volume 13, Page(s) 1169537

    Abstract: Introduction: Systemic inflammatory markers have been validated as prognostic factors for patients with biliary tract cancer (BTC). The aim of this study was to evaluate specific immunologic prognostic markers and immune responses by analyzing ... ...

    Abstract Introduction: Systemic inflammatory markers have been validated as prognostic factors for patients with biliary tract cancer (BTC). The aim of this study was to evaluate specific immunologic prognostic markers and immune responses by analyzing preoperative plasma samples from a large prospectively collected biobank.
    Methods: Expression of 92 proteins representing adaptive and innate immune responses was investigated in plasma from 102 patients undergoing resection for BTC 2009-2017 (perihilar cholangiocarcinoma n=46, intrahepatic cholangiocarcinoma n=27, gallbladder cancer n=29), by means of a high-throughput multiplexed immunoassay. Association with overall survival was analyzed by Cox regression, with internal validation and calibration. Tumor tissue bulk and single-cell gene expression of identified markers and receptors/ligands was analyzed in external cohorts.
    Results: Three preoperative plasma markers were independently associated with survival: TRAIL, TIE2 and CSF1, with hazard ratios (95% confidence intervals) 0.30 (0.16-0.56), 2.78 (1.20-6.48) and 4.02 (1.40-11.59) respectively. The discrimination of a preoperative prognostic model with the three plasma markers was assessed with concordance-index 0.70, while the concordance-index of a postoperative model with histopathological staging was 0.66. Accounting for subgroup differences, prognostic factors were assessed for each type of BTC. TRAIL and CSF1 were prognostic factors in intrahepatic cholangiocarcinoma. In independent cohorts, TRAIL-receptor expression was higher in tumor tissue and seen in malignant cells, with TRAIL and CSF1 expressed by intra- and peritumoral immune cells. Intratumoral TRAIL-activity was decreased compared to peritumoral immune cells, while CSF1-activity was increased. The highest CSF1 activity was seen in intratumoral macrophages, while the highest TRAIL-activity was seen in peritumoral T-cells.
    Discussion: In conclusion, three preoperative immunological plasma markers were prognostic for survival after surgery for BTC, providing good discrimination, even compared to postoperative pathology. TRAIL and CSF1, prognostic factors in intrahepatic cholangiocarcinoma, showed marked differences in expression and activity between intra- and peritumoral immune cells.
    Language English
    Publishing date 2023-06-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2023.1169537
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Så skapades covid-19-biobanken.

    Ljunggren, Hans-Gustaf / Strålin, Kristoffer / Chen, Puran / Cornillet, Martin / Rooijackers, Olav / I Eriksson, Lars / Aleman, Soo / Björkström, Niklas

    Lakartidningen

    2021  Volume 118

    Abstract: Biobanks function as important repositories for biological samples collected in health care. As such, they play an important role in enabling important medical research over time. In response to the covid-19 outbreak in Stockholm, Sweden, a group of ... ...

    Title translation Insights from creating a covid-19 biobank in Sweden.
    Abstract Biobanks function as important repositories for biological samples collected in health care. As such, they play an important role in enabling important medical research over time. In response to the covid-19 outbreak in Stockholm, Sweden, a group of specialists in intensive care, infectious diseases, and clinical microbiology, as well as scientists with experience in immunology and viral diseases, rapidly gathered. The group discussed how to cope with the prevailing situation, both from a clinical and a research-oriented perspective. Among strategies decided was an attempt to rapidly organize a biological sample collection organized in a biobank for immediate but also long-term research purposes. Given the pandemic conditions with a new virus, the biobank project and associated immediate immunological research tasks turned out to be challenging. In the following months, many lessons were learned from the systematic collection of clinical samples and associated immunological research. Many insights were gained of value for future pandemic preparedness.
    MeSH term(s) Biological Specimen Banks ; Biomedical Research ; COVID-19 ; Humans ; SARS-CoV-2 ; Sweden
    Language Swedish
    Publishing date 2021-12-15
    Publishing country Sweden
    Document type Journal Article
    ZDB-ID 391010-6
    ISSN 1652-7518 ; 0023-7205
    ISSN (online) 1652-7518
    ISSN 0023-7205
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top