Sökning: "Pili"

Visar resultat 6 - 10 av 45 avhandlingar innehållade ordet Pili.

  1. 6. Antiadhesive agents targeting uropathogenic Escherichia coli : Multivariate studies of protein-protein and protein-carbohydrate interactions

    Författare :Andreas Larsson; Jan Kihlberg; Fredrik Almqvist; Mats Larhed; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Antibacterial; pili; antiadhesive agents; structure based design; statistical molecular design; 2-pyridone; amino acid derivative; galabiose; enaminone; SPR; ELISA; QSAR; Organisk kemi; Organic chemistry; Organisk kemi; organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis describes studies directed towards development of novel antiadhesive agents, with particular emphasis on compounds that prevent attachment of bacteria to a host-cell. Three different proteins involved in the assembly or function of adhesive pili in uropathogenic Escherichia coli have been targeted either by rational structure based design or statistical molecular methods. LÄS MER

  2. 7. Pilicides and Curlicides : Design, synthesis, and evaluation of novel antibacterial agents targeting bacterial virulence

    Författare :Erik Chorell; Fredrik Almqvist; Stephen Hanessian; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pilicide; curlicide; anti-virulence; chaperone usher pathway; antibacterial; pili; curli; Escherichia coli; biofilm inhibitor; 2-pyridone; peptidomimetic; Organic chemistry; Organisk kemi; Bioorganic chemistry; Bioorganisk kemi; Pharmaceutical chemistry; Läkemedelskemi; Organic synthesis; Organisk syntes; Infectious diseases; Infektionssjukdomar; Biorganic Chemistry; bioorganisk kemi; Infectious Diseases; infektionssjukdomar; datorlingvistik; computational linguistics; organisk kemi; Organic Chemistry;

    Sammanfattning : New strategies are needed to counter the growing problem of bacterial resistance to antibiotics. One such strategy is to design compounds that target bacterial virulence, which could work separately or in concert with conventional bacteriostatic or bactericidal antibiotics. LÄS MER

  3. 8. KNOW YOUR ENEMY : Characterizing Pathogenic Biomaterials Using Laser Tweezers

    Författare :Tobias Dahlberg; Magnus Andersson; Krister Wiklund; Mikael Sjödahl; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Optical Tweezers; Laser Tweezers; Raman Spectroscopy; Bacterial Adhesion; Biophysics; Pili; Bacterial Spores; Endospores; Oocysts; Cryptosporidium; Optics; biology; biologi; fysik; Physics;

    Sammanfattning : Diseases caused by pathogenic agents such as bacteria and viruses result in devastating costs on personal and societal levels. However, it is not just the emergence of new diseases that is problematic. Antibiotic resistance among bacteria makes uncomplicated infections difficult and lethal. LÄS MER

  4. 9. Synthesis and functionalization of ring-fused 2-pyridones : Targeting pili formation in E. coli

    Författare :Nils Pemberton; Fredrik Almqvist; Oliver Kappe; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 2-pyridone; acylketene; antibacterial; biofilm inhibitor; Mannich; Micro-wave-assisted chemistry; peptidomimetic; virulence.; Organic synthesis; Organisk syntes;

    Sammanfattning : Bicyclic dihydrothiazolo fused 2-pyridones have been studied as a new class of antibacterial agents, termed pilicides, that target the formation of adhesive bacterial surface organelles (pili) in pathogenic bacteria. Synthetic methods to further functionalize the bicyclic 2-pyridone scaffold have been developed in order to increase water-solubility and thereby facilitate biological evalua-tions. LÄS MER

  5. 10. The role of the Type IV pili system in the virulence of Francisella tularensis

    Författare :Emelie Salomonsson; Åke Forsberg; Jean-Pierre Gorvel; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Francisella tularensis; tularemia; bacterial pathogenesis; Type IV pili; Type II secretion; Neisseria gonorrhoeae; PilA; RD18; RD19; Molecular biology; Molekylärbiologi;

    Sammanfattning : Francisella tularensis is a Gram-negative intracellular pathogen causing the zoonotic disease tularemia. F. tularensis can be found almost all over the world and has been recovered from several animal species, even though the natural reservoir of the bacterium and parts of its life cycle are still unknown. LÄS MER