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  • 1
    Electronic Resource
    Electronic Resource
    Bacteria-Specific T-Cell Clones are Selective in their Reactivity Towards Different Enterobacteria or H. pylori and Increased in Inflammatory Bowel Disease (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 44 (1996), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In the present study the authors investigated the T-cell response to different enterobacteria or Helicobacter pylori and tested the hypothesis that the frequency of bacteria-specific T cells is increased in the intestine of patients with active inflammatory bowel disease (IBD), i.e. Crohn’s disease (CD) and ulcerative colitis (UC). The analysis of a large panel of T-cell clones (Tc) (n = 888) from peripheral blood, non-inflamed and inflamed intestine from IBD patients and control individuals shows that both peripheral blood and intestinal T-cell clones were selectively stimulated by either Salmonella typhimurium Yersinia enterocolitica 03, Escherichia coli or Helcobacter pylori sonicates, that only 〈 3% of all bacteria-reactive Tc were crossreactive and that proliferation to bacterial sonicates was inhibited by anti-MHC class II antibody. In addition, bacteria-specific Tc from IBD patients were more frequently isolated from inflamed intestine than from peripheral blood (P = 0.0039) or non-inflamed intestine. These data, from a large number of T-cell clones, are the first systematic analysis describing the response of individual T cells towards different bacterial species (ssp.). They show that T cells with specificity for distinct antigens or superantigens that are characteristic for a defined bacteria ssp. are present in normal, and increased in inflamed, IBD-intestine. These bacteria-specific Tc may play a role in IBD pathogenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.1996.d01-273.x
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  • 2
    Electronic Resource
    Electronic Resource
    Recognition of Human Renal Cell Carcinoma and Melanoma by HLA-A2-Restricted Cytotoxic T Lymphocytes is Mediated by Shared Peptide Epitopes and Up-Regulated by Interferon-γ (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 44 (1996), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Cytotoxic T lymphocytes (CTL) have previously been isolated from peripheral blood of patients with renal cell carcinoma (RCC). The CD8-positive CTL line MZ1257-CTL-5 (CTL-5) has been shown to lyse autologous cultured RCC cells in an HLA-A2 restricted fashion. Allogeneic, HLA-A2-matched RCC and melanoma cell lines were also lysed by CTL-5, suggesting that melanoma and renal cancer share antigenic determinants. The aim of the study was to determine whether RCC and melanoma share peptide epitopes that are recognized by CTL-5 in the context of HLA-A2 molecules. Peptides were acid-eluted from various cell lines, separated by reversed phase high performance liquid chromatography (RP-HPLC), and assessed for their ability to reconstitute the CTL-5-defined epitope by pulsing the peptides on HLA-A2 positive antigen-processing mutant cell line CEM × 721.174.T2 (T2). Peptides eluted from allogeneic HLA-A2-matched RCC and melanoma cell lines exhibited the CTL-5-defined epitope in the same HPLC fractions as peptides derived from the autologous RCC line. Renal cancer and melanoma cells preincubated with interferon-γ (IFN-γ) resulted in an additional peak of reconstitution activity in both cell types. This second lytic peak was also observed when high amounts of autologous RCC cells were used for peptide preparation without IFN-γ pretreatment, indicating that IFN-γ increases the amount of MHC class I/peptide complexes per cell, rather than inducing a neo-epitope.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.1996.d01-304.x
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  • 3
    Electronic Resource
    Electronic Resource
    HLA-B27-Restricted Cytotoxic T Lymphocyte Responses to Arthritogenic Enterobacteria or Self-Antigens are Dominated by Closely Related TCRBV Gene Segments. A Study in Patients with Reactive Arthritis (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 43 (1996), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Identification of the T-cell receptors (TCR) used by synovial cytotoxic T lymphocytes (CTL) of patients with reactive arthritis (ReA) may be crucial to better understanding the pathogenetic mechanism underlying the HLA-B27 association ofspondylarthropathies. The authors, therefore, sequenced 25 TCRB chains from HLA-B27-restricted CD8+ CTL clones and two clonal lines specific for self- or Yersinia enterocolitica antigen isolated from synovial fluids of 3HLA-B27+ patients with ReA and PBL of one healthy HLA-B27+ individual. Fourteen non-HLA-B27-restricted CTL served as controls. Both autoreactive and Y. enterocolitica specific HLA-B27-restricted CTL used a highlylimited set of VB genes with preferential rearrangement of three closely related VB families (VB 13,14,17), suggesting that these families contain a preferred site for contact with the HLA-B27 molecule. In addition, the presence of limited TCRBJ usage,limited heterogeneity in CDR3 sequences and dominant clones from individual donors among these CTL indicate that TCRB chain usage is further restricted by a limited set of peptides bound to the HLA-B27 molecule. Limited TCR usage by SF CTL of ReA patients may lay a basis for therapeutical manipulation of the T-cell response in the spondylarthropathies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.1996.d01-16.x
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  • 4
    Electronic Resource
    Electronic Resource
    Chirurgie bei Hepatitis (1998)
    Springer
    Der Chirurg 69 (1998), S. 522-529 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Viral hepatitis ; Liver function ; Liver cirrhosis ; Immunprophylaxis ; Treatment of viral hepatitis. ; Schlüsselwörter: Virushepatitis ; Leberfunktion ; Lebercirrhose ; Immunprophylaxe ; Behandlung der Virushepatitis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Virushepatitiden gehören weltweit zu den wichtigsten Infektionskrankheiten. Allein über 300 Millionen chronische HBsAg-Träger und etwa die gleiche Anzahl chronischer Hepatitis-C-Virusträger werden geschätzt. Nach der Tuberkulose steht die Virushepatitis in der Statistik der infektiös bedingten Berufskrankheiten an zweiter Stelle. Insbesondere Teile Asiens, Afrikas, Lateinamerikas sowie der Mittelmeerraum und der Nahe Osten werden zu den Hochendemiegebieten der Virushepatitis gezählt. Aufgrund der immunologischen und molekularen Differenzierung sind heute die Virushepatitiden von A bis E einschließlich G weitgehend charakterisiert. Während die enteral übertragene Hepatitis A und E nur akute und in seltenen Fällen fulminante Verläufe induzieren, sind die Hepatitis B, ihre Koinfektion und Superinfektion mit Hepatitis Delta und die Hepatitis C insbesondere durch chronische Verläufe von großer medizinischer Bedeutung. Diese Erkrankungen können als Spätfolge in eine Lebercirrhose mit all ihren Komplikationen, einschließlich des primären Leberzellcarcinoms übergehen. Die für die Chirurgie besonderen Aspekte der Virushepatitis sollen diskutiert werden.
    Notes: Summary. Viral hepatitis belongs to the most important infectious diseases worldwide. More than 300 million chronic HBsAg carriers and chronic HCV carriers exist, respectively. High endemic areas of viral hepatitis are Asia, Africa, Latin America and the Near, Middle and Far East. Viral hepatitis is also very important in health care workers. Today viral hepatitis can be differentiated from type A to type E (G) based on immunological and molecular assays. While enterally transmitted hepatitis type A and type E only induce acute and rare fulminant disease, hepatitis type B, C and D often induce chronic progressive disease including liver cirrhosis with typical complications due to the portal hypertension and with a high rate of association with the development of primary liver cancer (HCC). This review focusses on viral hepatitis-related surgical problems, including liver transplantation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050449
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  • 5
    Electronic Resource
    Electronic Resource
    Zur Induktion einer aktiven chronischen Hepatitis durch heterologe lösliche Leberproteine (1968)
    Springer
    Virchows Archiv 345 (1968), S. 365-376 
    Details
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Untersuchungen gehen von dem früher geführten Nachweis eines im immunologischen Sinne organspezifischen und weitgehend speciesexclusiven Proteins der Leber aus. Entsprechende Proteinpräparationen aus menschlichen Lebern wurden zur Sensibilisierung von Kaninchen eingesetzt. 1. Bei langdauernder Sensibilisierung (über 1 Jahr) mit kleinen Dosen gelang beim erwachsenen Kaninchen die Induktion einer Immuntoleranz, die durch Applikation von hitzeund sulfanilsäurealteriertem Protein durchbrochen werden konnte; gleichzeitig konnte eine Hypersensibilität vom verzögerten Typ induziert werden. Histologisch fand sich bei allen Tieren eine aktive chronische Hepatitis; die übrigen Organe (Herz, Lunge, Skeletmuskulatur, Schilddrüse und Niere) waren frei von pathologischen Veränderungen. 2. Bei kurzzeitiger Sensibilisierung (3 Monate) mit hohen Dosen fand sich histologisch lediglich eine dichtzellige lymphocytäre Infiltration der Periportalfelder der Leber; nur bei einem Tier bestanden geringe Hinweiszeichen auf eine beginnende chronische Lebererkrankung. In der Diskussion wird auf die serologisch nachweisbare Antigenverwandtschaft der entsprechenden Proteine von humaner und Kaninchenleber hingewiesen. Für die Entwicklung einer chronisch-progredienten Organerkrankung scheint die Ausbildung einer Hypersensitivität vom verzögerten Typ im Rahmen einer langdauernden Stimulierung wesentlich zu sein.
    Notes: Summary These investigations are concerned with species- and organspecific liver proteins, demonstrated in earlier studies. Rabbits were sensitized utilizing similar protein-preparations obtained from human liver. 1. With long-term sensitizations (approximately one year) immuntolerances were induced in adult rabbits by chronic administration of small doses of protein. The state of immun tolerance could be disturbed by applying of heat- and sulfanilic acid-altered protein, which at the same time could be shown to have induced hypersensitivity of delayed type. — Histologically active chronic hepatitis was found in all animals. Other organs such as heart, lung, skeletal muscle, thyroid gland and kidney were not affected. 2. In short-term sensitizations with a high dosis of liver protein only dense lymphocytic infiltrations in the periportal areas were found histologically. In one animal only early changes of a chronic hepatitis were seen. Antigenic relations between human and rabbit liver proteins, as demonstrated earlier by serological techniques, are discussed in detail. Hypersensitivity of the delayed type would seem to play an important role in the development of active chronic hepatitis. This condition can be produced with long-term stimulations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00586254
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  • 6
    Electronic Resource
    Electronic Resource
    New cell lines of gastric and pancreatic cancer: distinct morphology, growth characteristics, expression of epithelial and immunoregulatory antigens (1995)
    Springer
    Virchows Archiv 426 (1995), S. 375-384 
    Details
    ISSN: 1432-2307
    Keywords: Stomach neoplasms ; Pancreatic neoplasms ; Cell differentiation ; Histocompatibility antigens ; Interferon gamma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two new cell lines from stomach cancers and one from a pancreatic carcinoma are presented. MZ-GC-1 was established from a hepatic metastasis of a well differentiated gastric adenocarcinoma. MZ-GC-2 was derived from ascites induced by a poorly differentiated gastric adenocarcinoma. MZ-PC-1 originated from the pleural effusion of a moderately well differentiated pancreatic ductal adenocarcinoma. MZ-GC-1 cells were adherent and partially polarized, connected tightly via desmosomes. In contrast MZ-GC-2 cells consisted of slightly adherent or floating subpopulations and displayed no desmosomes. MZ-PC-1 cells were adherent and showed polarized growth, connected by apical junctional complexes. Cell doubling times were 7 days for MZ-GC-1 and 45 h for MZ-GC-2 and MZ-PC-1 cells. MZ-GC-2 and MZ-PC-1 gave rise to nude mouse tumours, resembling the original lesions. Chromosome analysis of the cell lines revealed a high range of numerical abnormalities. Each cell line had cytokeratin patterns fitting well to typical in vivo patterns. Furthermore the cell lines expressed a panel of antigens typical for gastrointestinal epithelia. Unique for MZ-PC-1 were high amounts of secreted Ca19-9. γ-Interferon enhanced HLA-class I antigens up to twofold and induced ICAM-1 expression on each cell line. HLA-class II antigens were differentially enhanced by γ-interferon. Due to their distinct characteristics the three tumour cell lines may be useful models in the investigation of the cell biology and immunogenicity of gastrointestinal tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00191347
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  • 7
    Electronic Resource
    Electronic Resource
    Untersuchungen über den Hemmfaktor der Phosphoglucose-Isomerase in Erythrocyten von Kranken mit florider Psoriasis vulgaris (1967)
    Springer
    Archives of dermatological research 230 (1967), S. 336-339 
    Details
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Untersuchungen über Herkunft und Beschaffenheit des Hemmkörpers der PGI von Kranken mit florider Psoriasis vulgaris haben ergeben, daß es sich um ein nur in der Zelle, in diesem Falle im Erythrocyten, nicht aber im Serum solcher Kranker vorliegendes Protein handelt.
    Notes: Summary The investigations on origin and nature of the phosphoglucose isomerase inhibiting factor of patients with floride psoriasis vulgaris point aut that it is a matter of a protein localized only in the cell, in this case in the erythrocyte, but not in the serum of such patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00496383
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  • 8
    Electronic Resource
    Electronic Resource
    Antinucleäre Faktoren bei Psoriasis vulgaris und Psoriasis arthropathica? (1968)
    Springer
    Archives of dermatological research 233 (1968), S. 59-62 
    Details
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Untersuchungen über das Vorkommen antinucleärer Faktoren (ANF) bei 28 Patienten mit Psoriasis vulgaris [20] und Psoriasis arthropathica [8] haben ein negatives Ergebnis erbracht. Bei keinem der Fälle wurden unter Anwendung verschiedener serologischer und immunhämatologischer Techniken antinucleäre Faktoren nachgewiesen. Als Vergleichskollektive dienten 24 Patienten mit LED, 12 Patienten mit progressiver Sklerodermie und 68 klinisch gesunde Blutspender.
    Notes: Summary Investigation concerning the occurrence of antinuclear factors in 28 patients with psoriasis vulgaris [20] and psoriasis arthropathica [8] yielded a negative result. In none of the cases using different serological and immunehaematological methods antinuclear factors could be detected. The control-collective included 24 patients with disseminated lupus erythematosus, 12 patients with progressive systemic sclerosis and 68 clinically healthy blood-donors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00495693
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  • 9
    Electronic Resource
    Electronic Resource
    Tierexperimentelle Untersuchungen über die Wirkung von Azathioprin auf die Bildung zirkulierender Antikörper (1969)
    Springer
    Journal of molecular medicine 47 (1969), S. 379-382 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The effect of Azathioprine (AP, “Imuran”) during a peroral application on the antibody response of the immediately type was investigated by rabbit experiments. The primary immunological response was found to be only particulary suppressed by doses of 4 mg AP/kg/day. Doses of 6 mg AP/kg/day suppress the primary response completely. This dose had no great influence on the secundary response. That was possible only when given toxical doses of 15 mg AP/kg/day. The suppressive effectiveness of AP at a lower dose than 6 mg/kg/day increases with the antigenic stimulation.
    Notes: Zusammenfassung Die Wirkung von AP bei peroraler Applikation auf die Ak-Antwort vom Soforttyp wurde im Kaninchenexperiment geprüft. Die primärimmunologische Antwort ließ sich durch 4 mg AP/kg/Tag nur teilweise supprimieren. 6 mg waren voll wirksam hinsichtlich der Unterdrückung der Primärreaktion. Die Sekundärreaktion wurde von dieser AP-Dosis nicht wesentlich beeinflußt. Dies gelang erst mit toxischen Dosen von 15 mg AP/kg/Tag. Die Wirksamkeit von AP unterhalb von 6 mg/kg/Tag wächst mit dem Antigenstimulus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01734761
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  • 10
    Electronic Resource
    Electronic Resource
    Immunpathologische Begleiterkrankungen und -phänomene des Lupus erythematodes (1965)
    Springer
    Journal of molecular medicine 43 (1965), S. 892-898 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary One case of LED and myastenia gravis (Patient aged 33 years), two cases of LED and Thyroiditis (patients aged 42 and 35 years), and immunopathological phenomena of 13 patients with LED were reported. — 3 of 4 patients with LED and positive rheumatoid factors had in the preclinical phase of LED a history of rheumatoid arthritis. — There are leukocytagglutinins in 3 and plateletagglutinins in 2 patients. Both agglutinins were present in these patients. The cytopenia therefore seemed to be caused by autoantibodies. — Factors against species-unspecific cytoplasmatic fractions of rat and pig liver were found by complement fixation-test only in one case using the microsome and mitochondria fractions as antigen. — Thyroid-antibodies were directed against human thyreoglobulin in one case, and against the microsome fractions of normal and pathological human thyroid as well as thyreoglobulin of colloid goitre in another one. — The rare observation of LED and myastenia gravis gave rise to the discussion of the relation between autoimmun diseases and thymus function.
    Notes: Zusammenfassung Über immunpathologische Begleiterkrankungen und -phänomene beim LED wird anhand eines Falles von LED und Myasthenia gravis (33jährige Patientin), 2 Fällen von LED und Thyreoiditis (42- bzw. 35jährige Patientinnen) und 7 bzw. 13 weiteren LED-Patienten berichtet. — Von 4 LED-Patienten mit positiven Rheumafaktoren waren 3 aus einer chronischen Polyarthritis rheumatica hervorgegangen. — Die nachgewiesenen Leuko- bzw. Thrombocytenagglutinine bei 3 bzw. 2 Patienten traten in 2 Fällen im Sinne autoantikörperbedingter Cytopenien kombiniert auf. — Faktoren gegen speciesunspezifische cytoplasmatische Fraktionen von Ratten-und Schweineleber waren mit der KBR nur in einem Falle unter Verwendung der Mikrosomen bzw. Mitochondrienfraktion als Antigen nachweisbar. — Die Schilddrüsenantikörper waren in dem einen Fall gegen menschliches Thyreoglobulin, im anderen Fall gegen die Mikrosomenfraktionen gesunder und kranker menschlicher Schilddrüsen sowie Thyreoglobulin einer Kolloidstruma gerichtet. — Die seltene Beobachtung eines LED, kombiniert mit Myasthenia gravis war Anlaß, die Beziehungen von Autoimmunleiden zur Thymusfunktion zu diskutieren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01711255
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