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  • 1
    Digitale Medien
    Digitale Medien
    Indomethacin enhances the proliferation of mitogen-stimulated T lymphocytes of homosexual males with persistent generalized lymphadenopathy (1984)
    Springer
    Journal of clinical immunology 4 (1984), S. 383-387 
    Details
    ISSN: 1573-2592
    Schlagwort(e): Acquired immune deficiency syndrome ; lymphadenopathy ; lymphocytes ; prostaglandins
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The possibility that cyclooxygenase products of arachidonic acid might contribute to the defective T lymphocyte function of homosexual men with the reactive lymph node syndrome was examinedin vitro. T lymphocyte proliferation, assessed by the uptake of [3H]thymidine after the addition of phytohemagglutin, was 72,870±66,816 counts per minute (mean±SD) for eight patients and 119,589 ± 64,913 counts per minute for 30 controls (P〈0.05, Student'st test). Treatment with the cyclooxygenase inhibitor indomethacin increased the phytohemagglutin-induced proliferation of the T lymphocytes from five of eight patients, but none of 12 healthy homosexual and heterosexual control subjects. The production of prostaglandin E2 by T lymphocytes from six patients was 16.1±10.5 pg/5×106 cells/hr, as contrasted with that of 4.9±1.3 and 4.3±2.1 pg/5×106 cells for four healthy homosexual and six healthy heterosexual control subjects, respectively (P〈0.01, Student'st test). The production of prostaglandin E2 by the patients' monocytes was normal. Abnormalities of the cyclooxygenase pathway of T lymphocytes of patients with the reactive lymph node syndrome may reflect an immuno-regulatory defect, which predisposes to infections and may evolve into the more severe abnormalities of the acquired immune deficiency syndrome.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00917141
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  • 2
    Digitale Medien
    Digitale Medien
    Identification of peptide hormones of the amphipathic helix class using the helical hydrophobic moment algorithm (1989)
    New York, NY : Wiley-Blackwell
    Proteins: Structure, Function, and Genetics 6 (1989), S. 61-69 
    Details
    ISSN: 0887-3585
    Schlagwort(e): peptides ; hormones ; amphipathic helix ; hydrophobic moment ; Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin
    Notizen: Eisenberg's helical hydrophobic moment (〈μH〉) algorithm was applied to the analysis of the primary structure of amphipathic α-helical peptide hormones and an optimal method for identifying other peptides of this class determined. We quantitate and compare known amphipathic helical peptide hormones with a second group of peptides with proven nonamphipathic properties and determine the best method of distinguishing between them. The respective means of the maximum 11 residue 〈μH〉 for the amphipathic helical and control peptides were 0.46 (±/-0.07) and 0.33 (0.07) (P+0.004). To better reflect the amphipathic potential of the entire peptide, the percent of 11 residue segments in each peptide above a particular 〈μH〉 was plotted vs 〈μH〉. The resulting curves are referred to as HM-C. The mean HM-C (of the two groups) was highly significantly different such that the HM-C method was superior to others in its ability to distinguish amphipathic from nonamphipathic peptides. Several potential new members of this structural class were identified using this approach. Molecular modeling of a portion of one of these, prolactin inhibitory factor, reveals a strongly amphipathic α helix at residues 4-21. This computer-based method may enable rapid identification of peptide of the amphipathic α-helix class.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/prot.340060106
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  • 3
    Digitale Medien
    Digitale Medien
    Amphipathic helix motif: Classes and properties (1990)
    New York, NY : Wiley-Blackwell
    Proteins: Structure, Function, and Genetics 8 (1990), S. 103-117 
    Details
    ISSN: 0887-3585
    Schlagwort(e): Chemistry ; Biochemistry and Biotechnology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Medizin
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/prot.340080202
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  • 4
    Digitale Medien
    Digitale Medien
    Immunological mediators of wound healing and fibrosis (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 133 (1987), S. 89-93 
    Details
    ISSN: 0021-9541
    Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Medizin
    Notizen: T-lymphocytes, monocytes, and macrophages, which are the central constituents of immunological and chronic inflammatory reactions, generate numerous polypeptides and other factors capable of stimulating and modulating the proliferation and functions of fibroblasts. These principles differ widely in structure, target cell preference and functional specificity. The involvement of immunological mediators of fibroblast activities in normal wound healing has not been defined, but a role in some chronic fibrosing disorders, including rheumatoid arthritis, has been suggested by the findings of functionally relevant concentrations in affected tissues. The elucidation of both the pathways of production of fibroblast-activating factors (FAFs) and the determinants of fibroblast responses will permit new approaches to the diagnosis and treatment of deficiencies in wound healing and of abnormal fibrosis.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jcp.1041330417
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