Institutt for medisinsk biologi: Nye registreringer
Viser treff 181-200 av 1202
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The Small Heat Shock Protein, HSPB1, Interacts with and Modulates the Physical Structure of Membranes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-30)Small heat shock proteins (sHSPs) have been demonstrated to interact with lipids and modulate the physical state of membranes across species. Through these interactions, sHSPs contribute to the maintenance of membrane integrity. HSPB1 is a major sHSP in mammals, but its lipid interaction profile has so far been unexplored. In this study, we characterized the interaction between HSPB1 and phospholipids. ... -
Changes in the proteome and secretome of rat liver sinusoidal endothelial cells during early primary culture and effects of dexamethasone
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-02)Introduction<p> <p>Liver sinusoidal endothelial cells (LSECs) are specialized fenestrated scavenger endothelial cells involved in the elimination of modified plasma proteins and tissue turnover waste macromolecules from blood. LSECs also participate in liver immune responses. A challenge when studying LSEC biology is the rapid loss of the in vivo phenotype in culture. In this study, we have ... -
A DNA-Free Editing Platform for Genetic Screens in Soybean via CRISPR/Cas9 Ribonucleoprotein Delivery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-12)CRISPR/Cas9-based ribonucleoprotein (RNP)-mediated system has the property of minimizing the effects related to the unwanted introduction of vector DNA and random integration of recombinant DNA. Here, we describe a platform based on the direct delivery of Cas9 RNPs to soybean protoplasts for genetic screens in knockout gene-edited soybean lines without the transfection of DNA vectors. The platform ... -
Cost-effectiveness of molecularly matched off-label therapies for end-stage cancer–the MetAction precision medicine study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-09)Background: Precision cancer medicine (PCM), frequently used for the expensive and often modestly efficacious off-label treatment with medications matched to the tumour genome of end-stage cancer, challenges healthcare resources. We compared the health effects, costs and cost-effectiveness of our MetAction PCM study with corresponding data from comparator populations given best supportive care ... -
CRISPR/Cas9 to Silence Long Non-Coding RNAs
(Chapter; Bokkapittel, 2021-06-24)Knock-out (KO) of long non-coding RNAs (lncRNAs) enables functional characterization of this still poorly described group of transcripts. One of the most efficient and simplest methods to achieve complete KO of a lncRNA is by employing CRISPR/Cas gene editing. As most lncRNAs are not well annotated, their individual functional regions are not defined, and the majority of the transcripts are not ... -
The marine natural product mimic MPM-1 is cytolytic and induces DAMP release from human cancer cell lines
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-16)Bioprospecting contributes to the discovery of new molecules with anticancer properties. Compounds with cytolytic activity and the ability to induce immunogenic cell death can be administered as intratumoral injections with the aim to activate anti-tumor immune responses by causing the release of tumor antigens as well as damage-associated molecular patterns (DAMPs) from dying cancer cells. In ... -
Identification of novel serotonin transporter compounds by virtual Screening
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-12)The serotonin (5-hydroxytryptamine, 5-HT) transporter (SERT) plays an essential role in the termination of serotonergic neurotransmission by removing 5-HT from the synaptic cleft into the presynaptic neuron. It is also of pharmacological importance being targeted by antidepressants and psychostimulant drugs. Here, five commercial databases containing approximately 3.24 million drug-like compounds ... -
Determinants of Staphylococcus aureus colonization and infection: Characterization of interaction between serine-aspartate containing protein D and human Siglec11 and Siglec16
(Master thesis; Mastergradsoppgave, 2021-10-15)<p><i>Staphylococcus aureus</i> is a Gram-positive opportunistic pathogen responsible for a range of infections that can lead to fatal invasive diseases such as pneumonia or osteomyelitis. Approximately 30% of the healthy adult population are persistently colonized by <i>S. aureus</i> strains in their anterior nares. The molecular mechanism underlying <i>S. aureus</i> colonization and infection ... -
Dietary chlorpyrifos-methyl exposure impair transcription of immune-, detoxification- and redox signaling genes in leukocytes isolated from cod (Gadus morhua)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-05)Inclusion of new environmental toxicants increase with the amount of plant ingredients substituting marine proteins and oils in feed for farmed Atlantic salmon (Salma salar). Agricultural pesticides like chlorpyrifos-methyl, present in commercial salmon feeds, may affect salmon immune and detoxification responses. Atlantic cod (Gadus morhua), surrounding the net pens, grazing on feces and uneaten ... -
NORM/NORM-VET 2021: Usage of Antimicrobial Agents and Occurrence of Antimicrobial Resistance in Norway
(Research report; Forskningsrapport, 2022)Veterinærinstituttet overvåker forekomst av antibiotikaresistens i mikrober fra fôr, dyr og næringsmidler på oppdrag fra Mattilsynet. Dette gjøres i regi av NORM-VET, som er forkortelse for «Norsk overvåkingsprogram for antibiotikaresistens i mikrober fra fôr, dyr og næringsmidler». Data fra NORM-VET publiseres i den årlige NORM/NORM-VET rapporten som presenterer data om forekomst av antibiotikaresistens ... -
p62 and NDP52 Proteins Target Intracytosolic Shigella and Listeria to Different Autophagy Pathways
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011-06-06)Autophagy is an important mechanism of innate immune defense. We have recently shown that autophagy components are recruited with septins, a new and increasingly characterized cytoskeleton component, to intracytosolic Shigella that have started to polymerize actin. On the other hand, intracytosolic Listeria avoids autophagy recognition by expressing ActA, a bacterial effector required for actin ... -
Factors shaping initial decision-making to self-test amongst cohabiting couples in urban Blantyre, Malawi
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-06-15)In sub-Saharan Africa, most new HIV infections occur in stable relationships, making couples testing an important intervention for HIV prevention. We explored factors shaping the decision-making of cohabiting couples who opted to self-test in Blantyre, Malawi. Thirty-four self-tested participants (17 couples) were interviewed. Motivators for HIV self-testing (HIVST) emerged at three main levels. ... -
Establishment of an advanced flow cytometry protocol for analyzing immune cell subsets from lung cancer patients
(Mastergradsoppgave; Master thesis, 2022-08-22)Lymphocytes are known for their role in tumor promotion and tumor suppression. T cell infiltration of the tumor microenvironment has been linked to a better prognosis and outcome in various malignancies. CD8+ T cells can eliminate cancer cells by causing them to lyse, while CD4+ T cells can be both tumor promoting and tumor suppressing. However, the prognostic impact of functional lymphocyte subtypes ... -
Improving public cancer care by implementing precision medicine in Norway: IMPRESS-Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-14)Background: Matching treatment based on tumour molecular characteristics has revolutionized the treatment of some cancers and has given hope to many patients. Although personalized cancer care is an old concept, renewed attention has arisen due to recent advancements in cancer diagnostics including access to high-throughput sequencing of tumour tissue. Targeted therapies interfering with cancer ... -
The effect of Riociguat on cardiovascular function and efficiency in healthy, juvenile pigs
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-12)<p><i>Introduction - </i>Riociguat is a soluble guanylate cyclase stimulator approved for the treatment of pulmonary hypertension. Its effect on cardiometabolic efficiency is unknown. A potential cardiac energy sparing effect of this drug could imply a positive prognostic effect, particularly in patients with right heart failure from pulmonary hypertension. <p><i>Method - </i>We infused Riociguat ... -
Structural basis for PoxtA-mediated resistance to phenicol and oxazolidinone antibiotics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-06)PoxtA and OptrA are ATP binding cassette (ABC) proteins of the F subtype (ABCF). They confer resistance to oxazolidinone and phenicol antibiotics, such as linezolid and chloramphenicol, which stall translating ribosomes when certain amino acids are present at a defined position in the nascent polypeptide chain. These proteins are often encoded on mobile genetic elements, facilitating their rapid ... -
miR-101-5p Acts as a Tumor Suppressor in HER2-Positive Breast Cancer Cells and Improves Targeted Therapy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-01)Purpose: Human epidermal growth factor receptor 2 positive (HER2+) breast cancers responding poorly to targeted therapy need improved treatment options. miR-101-5p has shown tumor-suppressive properties in multiple cancer forms, and we assessed the effect and mechanism of action of this miRNA in HER2+ breast cancer.<p> <p>Methods: Expression levels of miR-101-5p in two clinical datasets, TCGA and ... -
The Interaction Between Venous Thromboembolism and Socioeconomic Status on the Risk of Disability Pension
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-14)Background: Venous thromboembolism (VTE) is associated with increased risk of disability pension. How socioeconomic status (SES) impacts the risk of disability pension after a VTE is unknown. The aim of this nationwide population based cohort study to investigate the interaction between SES and incident VTE on the risk of subsequent disability pension.<p> <p>Methods: Using Danish national medical ... -
Characterization and Fitness Cost of Tn7100, a Novel Integrative and Conjugative Element Conferring Multidrug Resistance in Haemophilus influenzae
(Journal article; Tidsskriftartikkel, 2022-07-22)A multidrug-resistant (MDR) strain of Haemophilus influenzae, Hi-228, with phenotypic resistance toward ampicillin, cefotaxime, chloramphenicol, gentamicin, and azithromycin, was isolated in Oslo, Norway. The strain was part of a clonal outbreak (2016–2017) comprising five ST143 strains with identical resistotypes. Hi-228 carries a novel integrative and conjugative element (ICE), Tn7100, contributing ... -
Chemical and Enzyme-Assisted Extraction of Fucoidan from two Species of Brown Macroalgae (Ascophyllum nodosum and Saccharina latissima)
(Conference object; Konferansebidrag, 2022)Macroalgae are vital species and are known to produce a wide range of bioactive compounds including polysaccharides, such as fucoidan. Traditionally, these compounds are extracted using hazardous solvents that leads to environmental pollution and waste. Considering this, more sustainable technologies are being investigated as greener alternatives.<p> <p>The main goal of this study was to ...