0000000000496966

AUTHOR

Niklas Zimmer

showing 3 related works from this author

Stability of Alkyl Chain-Mediated Lipid Anchoring in Liposomal Membranes

2020

Lipid exchange among biological membranes, lipoprotein particles, micelles, and liposomes is an important yet underrated phenomenon with repercussions throughout the life sciences. The premature loss of lipid molecules from liposomal formulations severely impacts therapeutic applications of the latter and thus limits the type of lipids and lipid conjugates available for fine-tuning liposomal properties. While cholesterol derivatives, with their irregular lipophilic surface shape, are known to readily undergo lipid exchange and interconvert, e.g., with serum, the situation is unclear for lipids with regular, linear-shaped alkyl chains. This study compares the propensity of fluorescence-label…

0301 basic medicineGlycerolliposomesPolymers02 engineering and technologyMicelleArticle03 medical and health scienceschemistry.chemical_compoundpolyglycerolDrug Delivery SystemsCell Line TumorHumanslcsh:QH301-705.5Alkylchemistry.chemical_classificationLiposomeCholesterolBiological membraneMembranes ArtificialGeneral Medicine021001 nanoscience & nanotechnologyFlow CytometrybioconjugatesLipidsDynamic Light Scattering030104 developmental biologyMembranelcsh:Biology (General)chemistryMicroscopy FluorescenceDrug deliveryclick chemistrydrug deliveryBiophysicslipids (amino acids peptides and proteins)0210 nano-technologyLipoproteinCells
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Platelet-Derived GARP Induces Peripheral Regulatory T Cells—Potential Impact on T Cell Suppression in Patients with Melanoma-Associated Thrombocytosis

2020

Platelets have been recently described as an important component of the innate and adaptive immunity through their interaction with immune cells. However, information on the platelet&ndash

0301 basic medicineCancer Researchmedicine.medical_treatmentT cellanimal diseaseschemical and pharmacologic phenomenathrombocytosisBiologylcsh:RC254-282Article03 medical and health sciences0302 clinical medicineImmune systemGARPDownregulation and upregulationmedicinemelanomaPlateletIL-2 receptorFOXP3Immunotherapybiochemical phenomena metabolism and nutritionAcquired immune systemlcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensTreg030104 developmental biologymedicine.anatomical_structureOncology030220 oncology & carcinogenesisplateletsCancer researchbacteriaCancers
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Targeting myeloid cells in the tumor sustaining microenvironment.

2017

Myeloid cells are the most abundant cells in the tumor microenvironment (TME). The tumor recruits and modulates endogenous myeloid cells to tumor-associated macrophages (TAM), dendritic cells (DC), myeloid-derived suppressor cells (MDSC) and neutrophils (TAN), to sustain an immunosuppressive environment. Pathologically overexpressed mediators produced by cancer cells like granulocyte-macrophage colony-stimulating- and vascular endothelial growth factor induce myelopoiesis in the bone marrow. Excess of myeloid cells in the blood, periphery and tumor has been associated with tumor burden. In cancer, myeloid cells are kept at an immature state of differentiation to be diverted to an immunosupp…

0301 basic medicineTumor microenvironmentImmunologyCancerTumor-associated macrophageDendritic cellBiologymedicine.disease03 medical and health sciences030104 developmental biologymedicine.anatomical_structureNeoplasmsCancer cellImmunologymedicineCancer researchTumor MicroenvironmentAnimalsHumansTumor promotionMyeloid CellsBone marrowMyelopoiesisImmunotherapyCellular immunology
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