Sökning: "cathelicidin"

Visar resultat 1 - 5 av 27 avhandlingar innehållade ordet cathelicidin.

  1. 1. Studies of the pathogenesis of Shiga toxin-producing Escherichia coli-induced hemolytic uremic syndrome

    Författare :Ida Arvidsson; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; EHEC; hemolytic uremic syndrome; Shiga toxin; complement; hemolysis; microvesicles; cathelicidin;

    Sammanfattning : Hemolytic uremic syndrome (HUS) is characterized by non-immune hemolytic anemia, thrombocytopenia and acute kidney failure. The most common form of HUS is associated with gastrointestinal Shiga toxin-producing enterohemorrhagic Escherichia coli (EHEC) infection. EHEC are non-invasive strains with Shiga toxin as the unique virulence factor. LÄS MER

  2. 2. Effects of the host defense peptide LL-37 on human cells : Immunomodulation and cytotoxicity

    Författare :Sara Bodahl; Kärlfysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LL-37; Host defense peptides; Cathelicidin; Inflammation; Cytotoxicity; TLR3; Poly I:C;

    Sammanfattning : The human host defense peptide LL-37 has an essential role in the first line of defense against invading pathogens. This cathelicidin is mainly produced by immune cells and epithelial cells aligning the mucosal areas and is normally upregulated upon infection and inflammation. LÄS MER

  3. 3. Functional dualism of antimicrobial host defence peptides

    Författare :Åse Björstad; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :antimicrobial; apoptosis; cathelicidin; host defence peptide; interleukin 8; LL-37; permeabilisation;

    Sammanfattning : Antimicrobial host defence peptides are central to innate immunity and many possess direct antimicrobial actions on bacteria as well as indirect immunomodulatory functions on human leukocytes. Different variants of the bifunctional Helicobacter pylori peptide, Hp(2-20), were synthesised and inhibition zone assays and chemiluminescence systems were employed for determination of direct antimicrobial action and superoxide release (immunomodulatory) from human neutrophils, respectively. LÄS MER

  4. 4. Expression of cathelicidin antimicrobial peptides in man and rat

    Författare :Stefan Termén; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; LL-37; rCRAMP; butyrate; colonic epithelium; central nervous system; transcription;

    Sammanfattning : Endogenous antimicrobial peptides are effectors of innate immunity. They kill microorganisms by disrupting their cell membranes, but are also believed to have signaling functions in the immune system. They are present in epithelia, secretions and phagocytic cells. LÄS MER

  5. 5. Studies of the role of the cathelicidin peptide LL-37 in epithelial biology

    Författare :Clara Ibel Chamorro Jimenez; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : The biology of epithelial immunity as well as of tissue repair is complex and highly regulated. A variety of molecules, cell types, and biological processes such as, cell differentiation, proliferation and migration, programmed cell death and antimicrobial mechanisms contribute to maintaining a balance between tissue damage and tissue repair. LÄS MER