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Jønsson V, Houlston RS, Catovsky D, Yuille MR, Hilden J, Olsen JH, Fajber M, Brandt B, Sellick G, Allinson R, Wiik A. CLL family ‘Pedigree 14’ revisited: 1947–2004. Leukemia 2005; 19:1025-8. [PMID: 15800670 DOI: 10.1038/sj.leu.2403727] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The notion that inherited predisposition contributes to the development of haematological malignancies is generally thought of as being a relatively new idea. However, Videbaek made a clear enunciation of such a hypothesis in 1947, from a study of tumour incidence in relatives of patients with different leukaemias. To gain further insight into inherited susceptibility to chronic lymphocytic leukaemia (CLL), we followed up the descendants of Videbaek's 'Pedigree 14' series of families. Using the Danish medical and pedigree databases, complete tracing of 222 descendants of the original 57 family members was achieved. To date, 10 family members have been diagnosed with CLL, one with T-cell lymphoma and 17 with nonhaematological cancers, including five with breast cancer. The detailed follow up of this family provides further support for inherited predisposition to CLL and illustrates the value of follow-up studies of previously published family material for genetic analyses.
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Affiliation(s)
- V Jønsson
- Department of Haematology, Rigshospital, University of Copenhagen, Copenhagen, Denmark.
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Jønsson V, Friis-Hansen LJ, Hou-Jensen K. [Picture of the month. Splenomegaly with hereditary stomatocytosis]. Ugeskr Laeger 2000; 162:4158. [PMID: 10962920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- V Jønsson
- H.S Rigshospitalet, Finsenscentret, haematologisk afdeling L 4042
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Abstract
A comprehensive review of novel cytoreductive agents is presented. Such novel agents may be found among chemical compounds directed against specific molecular targets (cytostatics) or within the biological substances selectively aimed at the malignant clone (immunotherapy). It is stated that the purposes of immunotherapy in general are to generate a T-lymphocytic response against the tumour cells, e.g., graft versus leukaemia (GvL) effect, natural killer T-cell cytolysis, antibody-dependent cytolysis etc.; or to reprogramme the immune system of the tumour-bearing host by DNA and/or RNA manipulation with subsequent interference with the signalling pathway in the tumour cells. Some immunotherapeutic modalities are shortly described: donor T-lymphocyte infusion and GvL effect, polyclonal antibodies, monoclonal antibodies, vaccines, gene replacement therapy, suicide gene therapy, antisense oligonucleotides, alterations of DNA-RNA transcript factors and malignant antigenic drive etc. Most likely, a sequence of different treatment modalities will be used in the future comprising an initial debulking by means of standard chemotherapy and/or irradiation followed by target unspecific immunotherapy (polyclonal immunoglobulins, GvL effect etc.) and finally target specific elimination of residual tumour, probably with repeated use of the minimum effective pharmacologic dose (MEPD) of the agents used. In contrast, the current use of high-dose myeloablative chemotherapy with the use of maximum tolerable dose (MTD) and associated severe organ toxicity, and high rates of secondary malignancies will probably be substituted in the future. An effective supportive treatment will be highly necessary, especially related to prevention and treatment of infections.
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Affiliation(s)
- V Jønsson
- Haematology Department L 4042, Rigshospital, Copenhagen, Denmark
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Jønsson V, Lyngdorf P, Bygum T, Jørgensen LG, Ringsted CV, Schroeder TV. [Problem-based learning in medical education]. Ugeskr Laeger 2000; 162:1068-72. [PMID: 10741244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Problem Based Learning (PBL) has not yet been instituted systematically at medical schools in Denmark. We therefore introduced the method in a 10th term course in internal medicine and surgery, eighteen months before graduation, and evaluated the experience after two terms with a total of 93 students and 15 tutors. Compared with traditional education such as bed-side clinics and lectures etc., PBL was the preferred method by 67% of the students, while 28% found the methods equally good and only 2% discredited PBL. The main advantage of PBL was ascribed to motivation and activation, the students finding themselves as being part of the problem-solving situation. The tutors estimated PBL highly when teaching clinical coping strategies, stressing the need for a realistic and appropriate setting. This experience supports the decision to introduce PBL throughout the new medical curriculum in Copenhagen.
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Affiliation(s)
- V Jønsson
- Laboratoriet for kliniske faerdigheder, H:S Rigshospitalet, og Københavns Universitet
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Molander S, Jønsson V, Andersen LP, Bennedsen M, Christiansen M, Hou-Jensen K, Madsen HO, Ryder LP, Permin H, Wiik A. [Pseudolymphoma and ventricular maltoma in patients with chronic gastritis, ulcer and Helicobacter pylori infection]. Ugeskr Laeger 2000; 162:791-5. [PMID: 10689954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Among 128 patients with malignant B-lymphoproliferative disorders, 19 patients had long lasting dyspepsia and gastroscopy showed chronic active gastritis or gastric ulcer. PCR analysis for TCR and IgH clonality in biopsies showed local involvement of the malignant lymphocyte clone in four patients out of eight indicating presence of these cells in the inflammatory infiltrate. Weak B-cell clonality was found in four patients. A close relationship was seen between lymphocytic clonality and immune response to H. pylori Cag A, and all patients had parietal cell antibodies. Thus, the malignant clone may participate in the local inflammatory reaction, and continued local stimulation by H. pylori as well as parietal cell antigens may lead both to autoimmunity as well as a clonal development of lymphocytes.
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MESH Headings
- Aged
- Autoantibodies/analysis
- B-Lymphocytes/immunology
- Clone Cells
- Female
- Gastritis/diagnosis
- Gastritis/immunology
- Gastritis/microbiology
- Helicobacter Infections/diagnosis
- Helicobacter Infections/immunology
- Helicobacter pylori/immunology
- Humans
- Immunoglobulin M/analysis
- Intestinal Mucosa/immunology
- Intestinal Mucosa/microbiology
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/microbiology
- Lymphoma, B-Cell, Marginal Zone/diagnosis
- Lymphoma, B-Cell, Marginal Zone/immunology
- Lymphoma, B-Cell, Marginal Zone/microbiology
- Lymphoma, Non-Hodgkin/diagnosis
- Lymphoma, Non-Hodgkin/immunology
- Lymphoma, Non-Hodgkin/microbiology
- Male
- Middle Aged
- Pseudolymphoma/diagnosis
- Pseudolymphoma/immunology
- Pseudolymphoma/microbiology
- Stomach Neoplasms/diagnosis
- Stomach Neoplasms/immunology
- Stomach Neoplasms/microbiology
- Stomach Ulcer/diagnosis
- Stomach Ulcer/immunology
- Stomach Ulcer/microbiology
- Waldenstrom Macroglobulinemia/diagnosis
- Waldenstrom Macroglobulinemia/immunology
- Waldenstrom Macroglobulinemia/microbiology
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Affiliation(s)
- S Molander
- H:S Rigshospitalet, haematologisk afdeling L
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Bock JE, Jønsson V. [Innate mechanisms during pregnancy]. Ugeskr Laeger 2000; 162:366-8. [PMID: 10680480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- J E Bock
- H:S Rigshospitalet, gynaekologisk obstetrisk afdeling
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Abstract
Fifty-seven consecutive patients with Waldenström's Macroglobuliemia were studied retrospectively for autoimmune manifestations. 28 patients or 51% (16 women and 13 men) had clinical and/or serological autoimmune manifestations, two or more of these being concomitant in 20 (12 women and 8 men). The predominant findings were Coombs' positive autoimmune hemolytic anemia (16%), seropositive rheumatoid arthritis (16%), inflammatory gastric ulcer with parietal cell autoantibodies (12%), and IgM-cardiolipin syndrome (11%). 40% of the autoimmune manifestations were present at the time of diagnosis of the Waldenström's Macroglobulinaemia and 60% were observed over a mean period of 4.7 years. All patients had an IgM M-component. There was no correlation between autoimmunity and the size of the M-component or the degree of hypo-IgG and hypo-IgA gammaglobulinemia. The only correlation between autoimmunity and infection was found in patients with gastric ulcer and parietal cell autoantibodies, in whom the infection was caused by Helicobacter pylori.
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Affiliation(s)
- V Jønsson
- Department of Hematology, Rigshospital, University of Copenhagen, Denmark
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Jønsson V, Wiik A, Hou-Jensen K, Christiansen M, Ryder LP, Madsen HO, Geisler C, Hansen MM, Thomsen K, Vorstrup S, Svejgaard A. Autoimmunity and extranodal lymphocytic infiltrates in lymphoproliferative disorders. J Intern Med 1999; 245:277-86. [PMID: 10205590 DOI: 10.1046/j.1365-2796.1999.0443f.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To examine the relationship between autoimmunity and extranodal lymphocytic infiltrates in different lymphoproliferative disorders with immunoglobulin alterations. SUBJECTS AND DESIGN A clinical review combined with a retrospective cohort study of 380 patients, 28 with monoclonal gammopathy of undetermined significance, three with common variable immunodeficiency, 147 with chronic lymphocytic leukaemia, 57 with Waldenström's macroglobulinaemia and 145 with non-Hodgkin's malignant lymphoma. SETTING A university hospital and The State Serum Institute in Copenhagen. INTERVENTION Clinical examination of each patient with special attention to chronic inflammatory and autoimmune manifestations. Biopsies were taken from non-infectious infiltrates, some of which were additionally tested with PCR analysis for gene rearrangements. Serological screening with a test battery for various autoantibodies was used in combination with techniques for the detection of M-components and monoclonal B-cell proliferation. MAIN OUTCOME MEASURES Clinical and/or serological autoimmune manifestations, M-component and other immunoglobulin alterations, and inflammatory tissue changes were studied in patients with chronic inflammatory, polyclonal or oligoclonal pseudolymphomas and in monoclonal, malignant extranodal lymphomas. RESULTS In 380 consecutive patients, 49 (12.9%) had extranodal manifestations, of whom 47 also had autoimmune manifestations. Nearly half of the 47 patients had more than one autoimmune manifestation. There was a strong correlation between clinical signs and corresponding autoantibodies such as anti-SSA and -SSB antibodies in Sjögren's syndrome (10 cases), antithyroid peroxidase antibodies in thyroiditis and Graves' disease (10 cases), and parietal cell antibodies in gastric ulcers with maltoma (12 cases). Clinical and serological signs of autoimmunity correlated strongly with female sex (34, 72% women; and 13, 28% men) and with immunoglobulin alterations. CONCLUSIONS To our knowledge this is the first systematic review of B-lymphoproliferative and autoimmune disorders indicating that pseudolymphoma and malignant lymphomas, including maltomas, may develop in the context of a permanent autoantigenic drive.
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Affiliation(s)
- V Jønsson
- Department of Haematology, Rigshospital, Denmark
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Abstract
Whereas individual cost-effectiveness analyses of new agents for acute leukaemia should be performed in target populations, any meaningful pharmacoeconomic evaluation of treatment options for this condition should include the many types of costs and outcomes in unselected, representative groups of patients. Both direct costs (e.g. costs for medication and hospitalisation) and indirect costs (e.g. lost productivity costs and reduced quality of life) are important parameters to assess, as are the costs of chronic adverse effects, research and development costs for new agents, and costs of procedure-related deaths. Complete remission, cure and survival are the 'success' response criteria for acute leukaemia treatments, in addition to prolonged life with acceptable quality of life for patients with incurable acute leukaemia. Death is 'failure', caused either by resistant disease (relapse and progressive disease) inspite of optimal chemotherapy or, sometimes, by insufficient treatment. All of these parameters should be taken into account when a pharmacoeconomic evaluation is performed (either for administrative or scientific purposes) in order to ensure a comprehensive and reliable background for the evaluation in question. Treatment of acute leukaemia is expensive with a total cost of about $US3000 per patient per day during the induction. Although 80% of children with acute leukaemia are cured, only less than 50% of adults are cured. Thus, a great cost is associated with death during treatment and only optimal medical treatment with full-scale combination chemotherapy and full supportive treatment can keep the number of deaths to a minimum.
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Affiliation(s)
- V Jønsson
- Department of Haematology, Finsen Center, Rigshospitalet, University of Copenhagen, Denmark.
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Ringdén O, Jønsson V, Hansen M, Tollemar J, Jacobsen N. Severe and common side-effects of amphotericin B lipid complex (Abelcet). Bone Marrow Transplant 1998; 22:733-4. [PMID: 9818706 DOI: 10.1038/sj.bmt.1701406] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jønsson V, Rasmussen N, Juhl BR, Gimsing P, Vorstrup S. Combined bilateral submandibular and sublingual swelling, macroglossus, and carpal tunnel syndrome caused by light chain amyloidosis. Ear Nose Throat J 1998; 77:95-8, 100-1. [PMID: 9509722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Three cases of light chain kappa amyloidosis in multiple myeloma patients are described with remarkable involvement of the tongue and swelling of the sublingual and submandibular regions, and without signs of nephropathy despite Bence Jones kappa proteinuria. All three patients had carpal tunnel syndrome at the beginning of their disease course and only moderate gastrointestinal involvement. Primarily for prognostic reasons, amyloidosis should be suspected in such cases, even in the presence of these highly unusual manifestations, and the diagnosis should be confirmed by unambigously-positive biopsies.
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Affiliation(s)
- V Jønsson
- Department of Hematology, University of Copenhagen, Denmark
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Moser C, Jønsson V, Thomsen K, Albrectsen J, Hansen MM, Prag J. Subcutaneous lesions and bacteraemia due to Stenotrophomonas maltophilia in three leukaemic patients with neutropenia. Br J Dermatol 1997; 136:949-52. [PMID: 9217834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Subcutaneous lesions were seen in three of 13 neutropenia patients who had Stenotrophomonas (Xanthomonas) maltophilia bacteraemia. The characteristic clinical presentation resembled leukaemic infiltrates, and were different from deep ulcers or subcutaneous nodules caused by Pseudomonas aeruginosa. The three patients had acute leukaemia and were treated with intensive combination chemotherapy. All had previously been treated with broad-spectrum antibiotics, and each patient recovered after proper combination antibiotic treatment given according to sensitivity testing.
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MESH Headings
- Adult
- Aged
- Bacteremia/complications
- Bacteremia/pathology
- Female
- Humans
- Immunocompromised Host
- Leukemia/complications
- Leukemia/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myeloid, Acute/complications
- Leukemia, Myeloid, Acute/pathology
- Neutropenia/complications
- Neutropenia/pathology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/complications
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Skin Diseases, Bacterial/complications
- Skin Diseases, Bacterial/pathology
- Xanthomonas/pathogenicity
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Affiliation(s)
- C Moser
- Department of Microbiology, Rigshospitalet, University Hospital of Copenhagen, Denmark
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Jønsson V, Svendsen B, Vorstrup S, Krarup C, Schmalbruch H, Thomsen K, Heegaard NH, Wiik A, Hansen MM. Multiple autoimmune manifestations in monoclonal gammopathy of undetermined significance and chronic lymphocytic leukemia. Leukemia 1996; 10:327-32. [PMID: 8637242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In 18 cases of monoclonal gammopathy of undetermined significance, MGUS (monoclonal gammopathy of undetermined significance), admitted for diagnosed or suspected peripheral neuropathy, 11 patients showed other co-existing autoimmune manifestations. Two had POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, M-component, and skin symptoms), the others mainly endocrinopathy and polyclonal pseudolymphoma. There were 13 cases of sensorimotor neuropathy, two cases of neuritis, while neuropathy could not be confirmed in three cases. Compared with a retrospective review of autoimmunity in a randomly selected CLL (chronic lymphocytic leukemia) cohort of 115 patients, 13 out of 42 patients with clinical and/or laboratory features of autoimmunity showed co-expression of autoimmune signs, the dominating traits being Coombs positive AIHA (auto-immune hemolytic anemia), platelet autoantibodies, endocrinopathy mainly associated with the thyroid gland, serological and/or rheumatological symptoms, but only one case of sensorimotor neuropathy. Viewed from a current model of acquired autoimmunity it is perhaps not surprising that such autoimmunity is seen predominantly in patients with monoclonal gammopathy. Thus, a high concentration of cross-reacting polyreactive autoantibodies related to the M-component might be present in these patients. Furthermore, quantitative defects of the immunoglobulins including the hypogammaglobulinemia associated with M-components can presumably give rise to a defect of the anti-idiotypic network's regulation of natural autoantibodies and autoimmune manifestations in vivo. Such autoimmune manifestations, which are easily overlooked in CLL may call for additional treatment with immunosuppression and/or intravenous, polyclonal IgG.
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Affiliation(s)
- V Jønsson
- Department of Hematology, University of Copenhagen, Denmark
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Abstract
Assessments of the direct and indirect costs of cancer treatment have demonstrated the extreme complexity of these costs. Expenditure on cancer treatment is high, often reaching 3 to 6% of the gross national product in industrialised countries. In this article, we propose that the health outcomes associated with this high expenditure should be analysed in relation to concepts such as total cytoreduction (leading to disease-free survival and cure) and cytostabilisation with acceptable quality of life (in incurable cancer patients). Outcomes appear to be more variable among incurable compared with curable patients, so that cure and survival (which apply to only about 50% of all patients) are not the sole outcome parameters. For the 50% of patients in industrialised countries in whom cure is not possible, outcomes (in the form of cytostabilisation and an ongoing obligation to seek curative cytoreduction) will require further pharmacoeconomic assessment.
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Affiliation(s)
- V Jønsson
- Department of Haematology, Rigshospitalet, University of Copenhagen, Denmark
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Ryding J, Heslet L, Hartvig T, Jønsson V. Reversal of 'refractory septic shock' by infusion of amrinone and angiotensin II in an anthracycline-treated patient. Chest 1995; 107:201-3. [PMID: 7813278 DOI: 10.1378/chest.107.1.201] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
A 53-year-old granulocytopenic woman with malignant lymphoma treated with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) chemotherapy, including doxorubicin (Adriamycin) and autologues bone marrow transplantation, presented in the clinical state of "refractory septic shock" caused by Escherichia coli. Despite inotropic treatment with dopamine, dobutamine, and norepinephrine infusion, the patient's condition did not improve, but during treatment with amrinone and angiotensin II infusion, the septic shock was reversed. The patient was monitored with a pulmonary artery catheter and underwent repeated echocardiographic examinations. Antibiotic treatment with thienamycin and floxacillin was given. The initial reduction in cardiac performance in this patient may be explained by a state of true down-regulation of the myocardial beta-receptors. Apparently these beta-receptors were bypassed via the enzymatic action of amrinone upon cyclic monoadenosine phosphate. This is, to our knowledge, the first doxorubicin-treated patient with septic shock refractory to conventional vasopressor therapy whose condition reversed by inotropic treatment with amrinone and angiotensin II. This treatment may prove to be an alternative choice for patients developing "refractory septic shock" unresponsive to treatment with norepinephrine, dobutamine, and dopamine.
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Affiliation(s)
- J Ryding
- Department of Anesthesia, Rigshospitalet, University of Copenhagen, Denmark
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Victor MA, Arpi M, Bruun B, Jønsson V, Hansen MM. Xanthomonas maltophilia bacteremia in immunocompromised hematological patients. Scand J Infect Dis 1994; 26:163-70. [PMID: 8036472 DOI: 10.3109/00365549409011780] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Epidemiological, microbiological and clinical characteristics of 14 episodes of Xanthomonas maltophilia bacteremia in 12 seriously immunocompromised hematological patients, admitted to Rigshospitalet in Copenhagen over the 3-year period 1989-91, were evaluated. The results were compared with a randomly selected control group of 25 patients with Escherichia coli bacteremia. Hospital acquired bacteremia was more common among the patients with X. maltophilia bacteremia (p < 0.01). Treatment with broad-spectrum antibiotics before the bacteremic episode was markedly more common among the patients with X. maltophilia bacteremia (p < 0.001). The presence of a central venous catheter and previous treatment with corticosteroids were more frequent in patients with X. maltophilia bacteremia (p < 0.05). The X. maltophilia blood culture isolates were generally resistant to aminoglycosides and most beta-lactams. The mortality rates related to bacteremia caused by X. maltophilia and E. coli were 14% and 20%, respectively.
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Affiliation(s)
- M A Victor
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
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Arpi M, Victor MA, Møller JK, Jønsson V, Hansen MM, Peterslund NA, Bruun B. Changing etiology of bacteremia in patients with hematological malignancies in Denmark. Scand J Infect Dis 1994; 26:157-62. [PMID: 8036471 DOI: 10.3109/00365549409011779] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
To ascertain whether the microbiological etiology of bacteremia among patients with hematological malignancies has changed in Denmark, the species distribution of clinically relevant blood culture isolates from the Hematological Department at Rigshospitalet, Copenhagen in 1990 was compared with 2 previous studies (1970-72; 1981-85). In addition, time trends of the etiology of bacteremia among hematological patients in Copenhagen (eastern Denmark) and in Arhus (western Denmark) were compared. In contrast to many other studies, a significant increase in the proportion of Gram-negative aerobes was observed in Copenhagen (from 43% in 1981-85 to 55% in 1990; p < 0.05), whereas in Arhus the proportion of Gram-positive aerobes increased steadily during the 1980s (from 34% to 51%; p < 0.05). In Copenhagen, non-hemolytic streptococci and Xanthomonas maltophilia increased significantly and accounted for 10% (p < 0.01) and 5% (p < 0.05) respectively, of all isolates in 1990, whereas Staphylococcus aureus during the 2 decades studied decreased from 25% to 8% (p < 0.001). In both regions, a decrease was observed in the proportion of Pseudomonas aeruginosa which accounted for only about 5% of all isolates in 1990. No changes were observed in the rates of anaerobes and yeasts. Several factors may contribute to the reported differences in the etiology of bacteremia among hematological patients, e.g. criteria used to assign the clinical significance of the isolate, blood culture system used, practice of using indwelling intravenous catheters, different policies with respect to antimicrobial treatment, and the degree of immunosuppression. A local surveillance of blood culture isolates is mandatory if changes in etiology and resistance development are to be detected.
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Affiliation(s)
- M Arpi
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
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Sklenar I, Schiffman G, Jønsson V, Verhoef G, Birgens H, Boogaerts M, Ferrant A, Christensen BE, Hasle H, Drivsholm A. Effect of various doses of intravenous polyclonal IgG on in vivo levels of 12 pneumococcal antibodies in patients with chronic lymphocytic leukaemia and multiple myeloma. Oncology 1993; 50:466-77. [PMID: 8233289 DOI: 10.1159/000227231] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Polyclonal intravenous IgG (IVIG) was administered as an infusion 6 times every 3 weeks (week 0, 3, 6, 9, 12, 15) in doses of 0.1, 0.4 and 0.8 g/kg BW to determine the dose causing an increase in 12 pneumococcal antibody types above the protective level of 200 ng/ml of antibody N. The dose of 0.4 g/kg BW was found to be optimal in patients with chronic lymphocytic leukaemia (CLL). From the first infusion onwards at least 80% of CLL patients had increases in all 12 antibodies. Five weeks after the last infusion the antibody levels were still elevated in 80% of patients with CLL. The dose of 0.8 g/kg raised all 12 antibodies in 53-73% of CLL patients when assessments were made after each infusion. In multiple myeloma (MM) patients, 73-82% and 73-91% of patients had increased antibody levels, respectively, before and after the 4th-6th infusions at the 0.8 g/kg dose level. However, in only 45-50% of patients did the antibodies remain increased 2 weeks after the treatment at this dose. The dose of 0.4 g/kg caused antibody increases in only 30-50% of patients when measured before the 4th-6th infusion. Serum IgG increased significantly only in the CLL patients, whereas in the MM patients it was high from the beginning owing to the disease. Therefore, the pneumococcal antibody levels were a better marker for the purpose of dose finding. The dosage recommendation in CLL is 0.4 g/kg every 3 weeks until week 12, when steady state is reached. The maintenance dose is 0.4 g/kg every 5 weeks. In MM patients, who have a faster elimination rate of antibodies, the recommended loading dose is 0.8 g/kg, followed by 0.4 g/kg every week as a continuous treatment. Treatment with IVIG in CLL and MM was generally well tolerated. Only 25% of patients experienced minor side-effects, the most frequent being febrile reactions, shivering and headache.
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MESH Headings
- Adult
- Aged
- Antibodies, Bacterial/blood
- Drug Administration Schedule
- Female
- Humans
- Immunoglobulin G/administration & dosage
- Immunoglobulin G/blood
- Immunoglobulin G/therapeutic use
- Immunoglobulins, Intravenous/administration & dosage
- Immunoglobulins, Intravenous/therapeutic use
- Leukemia, Lymphocytic, Chronic, B-Cell/blood
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Male
- Middle Aged
- Multiple Myeloma/blood
- Multiple Myeloma/immunology
- Multiple Myeloma/therapy
- Pneumococcal Infections/prevention & control
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Affiliation(s)
- I Sklenar
- Department of Microbiology and Immunology, Downstate Medical Center, SUNY, Brooklyn
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22
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Abstract
A study of 17 patients with autoimmune axonal or demyelinating peripheral neuropathy in combination with M-component is described. The M-component was associated with MGUS (monoclonal gammopathy of undetermined significance) in 12 patients, CLL in one patient, Waldenström's disease in one patient, and myeloma in three patients. Immunohistological examination with direct and indirect fluorescence showed binding of antibodies to nerve structures of the same class and light chain as seen in the M-component. In five cases of IgM M-component, the demyelinating neuropathy was caused by binding of the IgM M-protein and complement C3b to myelin-associated glycoproteins (MAG). In 12 cases with axonal neuropathy, binding of IgG to the connective tissue of the peri- and endoneurium was found in 50% of cases, IgM in five cases, and IgD in one case. None of the patients had central nervous system (CNS) symptoms. The clinical and therapeutic difficulties are discussed; only two patients with an acute course responded to immunosuppression. A marked co-expression of other autoimmune phenomena is interpreted in the light of cross-reactions between the autoantibody and similar tissue autoantigens.
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Affiliation(s)
- V Jønsson
- Department of Haematology L, Rigshospitalet, University of Copenhagen, Denmark
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23
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Abstract
The organs associated with plasma volume expansion, i.e., the red bone marrow, the enlarged spleen, and the uteroplacental complex, are arteriovenous shunts with an interposed sinusoidal stroma able to skim off plasma-rich blood. In the spleen, plasma separation is an integral part of the hemoconcentration. In the red bone marrow, plasma skimming might provide a washout mechanism for the many newly formed erythrocytes and platelets from the sinusoids to the peripheral blood circulation. In the uteroplacental complex, skimming of plasma-rich blood is beneficial in increasing blood flow in the myometrium, kidneys, and skeletal musculature. The hypervolemic status with anemia will simulate a negative iron balance, which speeds up the absorption of iron. Thus a conceptual unit seems to exist in which rheological factors influence such functions as transport of newly formed blood cells into the circulation (in the red bone marrow), hemoconcentration (in the spleen), and iron balance during pregnancy (in the uteroplacental complex).
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Affiliation(s)
- V Jønsson
- Department of Hematology, Rigshospitalet, Medical School, University of Copenhagen, Denmark
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24
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Hippe E, Jønsson V, von der Maase H, Mathiesen JC, Skovgaard Poulsen H. Homoeostatic response criteria for cancer therapy. Eur J Cancer 1991; 27:1715-6. [PMID: 1782092 DOI: 10.1016/0277-5379(91)90459-q] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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25
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Abstract
Cytokines form a network of communication signals between cells of the immune system, and between the immune system and other organs. They interact with structurally complex and often dynamically expressed target cell receptors. The recent demonstration of autoantibodies to cytokines, even in sera of normal individuals, suggests further complexities in the way that nature regulates cytokine functions. Based mainly on evidence obtained by investigating autoantibodies to interleukin 1 alpha (IL-1 alpha), Klaus Bendtzen and colleagues discuss the possibility that naturally occurring antibodies may function as specific physiological carriers and regulators of cytokines.
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Affiliation(s)
- K Bendtzen
- Dept. of Medicine TTA, Rigshospitalet University Hospital, Copenhagen N, Denmark
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26
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Jensen TS, Schrøder HD, Jønsson V, Ernerudh J, Stigsby B, Kamieniecka Z, Hippe E, Trojaborg W. IgM monoclonal gammopathy and neuropathy in two siblings. J Neurol Neurosurg Psychiatry 1988; 51:1308-15. [PMID: 2852210 PMCID: PMC1032920 DOI: 10.1136/jnnp.51.10.1308] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A sister and a brother with a progressive mixed axonal and demyelinating polyneuropathy were found to have a monoclonal IgM gammopathy of kappa and lambda type, respectively. Sural nerve and cutaneous nerve specimens obtained by biopsy showed deposits of IgM on myelin sheets. Sera from both patients contained antibodies directed to bovine peripheral nerve myelin as determined by ELISA technique and to normal human peripheral nerve myelin as demonstrated by indirect immunofluorescence histochemistry. These siblings may have a genetic predisposition to the formation of autoantibodies with peripheral nerve myelin as the target for the immune attack.
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Affiliation(s)
- T S Jensen
- Department of Neurology, Rigshospitalet, University of Copenhagen, Denmark
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27
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Hippe E, Jønsson V, Schrøder HD, Jensen TS. Ara-C vasculitis. Eur J Haematol Suppl 1988; 41:96. [PMID: 3165346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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28
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Pers C, Kristiansen JE, Jønsson V, Hansen NE. Rothia dentocariosa septicaemia in a patient with chronic lymphocytic leukaemia and toxic granulocytopenia. Dan Med Bull 1987; 34:322-3. [PMID: 3436159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Rothia dentocariosa is part of the human oral flora and has only rarely been reported as a cause of clinical infection. We report the isolation of Rothia dentocariosa from the blood of a septicaemic patient with chronic lymphocytic leukaemia and bone marrow depression following treatment with clomipramine and zuclopentixol.
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Affiliation(s)
- C Pers
- Department of Clinical Microbiology, Copenhagen County Hospitals, Denmark
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29
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Abstract
During a one year period acute pericarditis was diagnosed in 16 consecutive patients without acute infarction or malignancy. In two of these patients with both pericarditis and pneumonia Legionella infection was present. One case was caused by Legionella longbeachae and the other by both Legionella longbeachae and Legionella jordanis. When pericarditis is associated with pneumonia Legionella infection should be sought so that effective treatment with erythromycin may be started early.
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Affiliation(s)
- J H Svendsen
- Department of Cardiology, Gentofte Hospital, University of Copenhagen, Denmark
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30
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Jønsson V, Jensen TS, Friis ML, Schrøder HD, Stigsby B, Struck J, Hippe E, Trojaborg W. Immunoglobulin deposits in peripheral nerve endings detected by skin biopsy in patients with IgM M proteins and neuropathy. Neurology 1987; 37:303-6. [PMID: 3027613 DOI: 10.1212/wnl.37.2.303] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Immunofluorescence studies of sural nerve and skin biopsies from three patients with IgM M proteins and clinical neuropathy showed that IgM M protein was bound to the nerve myelin in two patients and by the peri- and endoneurium in one. It is suggested that immunohistochemical studies of skin biopsies provide a simple effective method of detecting immunoglobulin binding to peripheral nerves in patients suspected of having an autoimmune neuropathy. In contrast to sural nerve biopsy, skin biopsy does not cause sensory loss or pain in a denervated area and can easily be repeated.
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31
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Struck J, Schrøder HD, Jønsson V, Jensen TS, Stigsby B, Friis ML, Hippe E. [IgM M-component associated neuropathy. A new autoimmune disease entity]. Ugeskr Laeger 1987; 149:160-2. [PMID: 3029934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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32
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Jønsson V, Lange Wantzin G, Badsberg E, Menné T, Videbaek A. A transitional variant of a T-lymphoproliferative malignancy. Two cases of cutaneous T-cell lymphoma co-expressing E and Fc gamma receptors with final leukaemic transformation. Scand J Haematol 1986; 36:246-52. [PMID: 2939548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
2 cases of malignant T-lymphoproliferative disease are reported. The proliferating cell was a large blast expressing E and Fc gamma receptors but no helper or suppressor phenotypes and no SmIg. Skin infiltrates were the dominant clinical sign with conspicuous perivascular aggregations of T, E, Fc gamma lymphocytes, though both patients initially had disseminated disease with mild lymphadenopathy, splenomegaly and, in case 2, also hepatic infiltrations. Accordingly, DNA measurements on skin biopsies, taken early in the course, showed a dominating hypotetraploid clone (case 1) and a pronounced population in S-phase (case 2). The patients were alive for 6 and 2 yr, respectively, with a final fatal course of about 6 months duration involving a rather sudden progression of the skin infiltrates, increasing lymphadenopathy and splenomegaly, leukaemic transformation of the neoplastic T, E, Fc gamma lymphocyte and practically no response to cytostatic treatment.
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33
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Abstract
The hitherto largely unsolved problem with a biological definition of spleen versus lymph node seems possible to solve from a phylogenetic point of view. Thus, it is suggested that the spleen be defined as a hemopoietic organ which is able to filter blood with sinusoids. In contradistinction, a lymph node is defined as a hemopoietic organ which is able to filter lymph with sinusoids. Comparative anatomical studies show that the spleen appears as a condensation of the lymphomyeloid complex in the spiral fold of the gut in cyclostomes. The spiral fold spleen vanishes with the bony fishes, while in cartilaginous fishes a similar spleen appears in the dorsal mesentery. The dorsal spleen remains in a retroperitoneal position in higher vertebrates and is regarded as a specialized blood vessel compartment closely connected with the blood stream. In "higher" vertebrates the spleen is a stagnated organ because splenic functions are gradually transferred to other sites. The bone marrow takes over the erythro-, thrombo- and granulocytopoiesis while the lymph nodes take over the lymphocytopoiesis. This transfer of the splenic functions is first seen in anurans and seems to be a marvelous adaptation to life on land where the need for local defence against a large number of antigens is necessary before spread of the antigens to central parts of the body. In higher vertebrates, the great number of lymph nodes at peripheral positions, derived from the lymphatic vessels, are able to do so. It is demonstrated that the definitions of spleen and lymph nodes as hemopoietic organs which by their sinusoids are able to filter blood and lymph, respectively, are not only of semantic interest but also useful in regard the immunohematological system as an entity.
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34
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Christensen BE, Jønsson V, Videbaek A. The spleen in lymphoproliferative disorders. Clin Haematol 1983; 12:517-33. [PMID: 6352115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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35
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Ehlin-Henriksson B, Clark EA, Jønsson V, Klein G. Studies on the B lymphoblast antigen No. 1 (BB-1) on a series of Burkitt lymphoma lines differing in the expression of the EBV/C3 receptor complex. The Journal of Immunology 1983. [DOI: 10.4049/jimmunol.130.5.2448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
In the Jijoye-P3HR-1 family of Burkitt lymphoma sublines, the expression of the B lymphoblast-1 antigen, BB-1, identified by the monoclonal antibody described by Yokochi and colleagues, was found to be strictly related to the expression of the EBV receptor/C3 receptor (EBVR/C3R) complex. It was absent on the receptor-negative P3HR-1 line, present in the original receptor-positive Jijoye line, and reappeared in nonvirus producer sublines derived from P3HR-1 itself. We suggest the BB-1 antigen is related to the EBVR/C3R complex in the Jijoye family, either at the level of genetic or epigenetic determination or at the level of steric interaction on the cell membrane. In all probability, however, the BB-1 antigen is not identical to the receptor itself. It is also clear that a similar relationship does not necessarily apply to other cell lines. In the course of the studies, it was accidentally discovered that propagation of the P3HR-1 cells on newborn instead of fetal calf serum induces the concomitant expression of EBV receptors, C3 receptors, and the BB-1 antigen. The mechanism of this induction is obscure; it does not appear to be related to any significant change in the frequency of virus-producing cells.
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36
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Ehlin-Henriksson B, Clark EA, Jønsson V, Klein G. Studies on the B lymphoblast antigen No. 1 (BB-1) on a series of Burkitt lymphoma lines differing in the expression of the EBV/C3 receptor complex. J Immunol 1983; 130:2448-52. [PMID: 6187858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In the Jijoye-P3HR-1 family of Burkitt lymphoma sublines, the expression of the B lymphoblast-1 antigen, BB-1, identified by the monoclonal antibody described by Yokochi and colleagues, was found to be strictly related to the expression of the EBV receptor/C3 receptor (EBVR/C3R) complex. It was absent on the receptor-negative P3HR-1 line, present in the original receptor-positive Jijoye line, and reappeared in nonvirus producer sublines derived from P3HR-1 itself. We suggest the BB-1 antigen is related to the EBVR/C3R complex in the Jijoye family, either at the level of genetic or epigenetic determination or at the level of steric interaction on the cell membrane. In all probability, however, the BB-1 antigen is not identical to the receptor itself. It is also clear that a similar relationship does not necessarily apply to other cell lines. In the course of the studies, it was accidentally discovered that propagation of the P3HR-1 cells on newborn instead of fetal calf serum induces the concomitant expression of EBV receptors, C3 receptors, and the BB-1 antigen. The mechanism of this induction is obscure; it does not appear to be related to any significant change in the frequency of virus-producing cells.
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37
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Brocks K, Eriksen N, Jønsson V, Hansen M, Brahm M, Hertz J, Jørgensen BC, Winthereik B. [4 simultaneous cases of methanol poisoning caused by home-made plum brandy]. Ugeskr Laeger 1983; 145:232-4. [PMID: 6845480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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38
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Jønsson V, Hippe E, Clemmensen OJ, Badsberg E, Videbaek A. Malignant centroblastic-histiocytic lymphoma of the skin. Scand J Haematol 1982; 29:295-8. [PMID: 6758107 DOI: 10.1111/j.1600-0609.1982.tb00597.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A mixed B-cell type centroblastic lymphoma with extraordinarily many histiocytes in a 68-year-old man is reported. Multiple skin tumours were the only clinical manifestation during the first 5 months. The disease then progressed to the lymph nodes, spleen, and parenchymal organs, but the bone marrow remained unaffected until death, 11 months after the onset of signs. C3d receptors were the only surface markers of the centroblasts. The histiocytes were normal with respect to morphology, muramidase staining, and Fc and C3b receptors. This highly unusual spread from skin to lymphoid and parenchymal organs is discussed in the light of lymphoid cell kinetics.
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39
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Jønsson V, Wells A, Klein G. Receptors for the complement C3d component and the Epstein-Barr virus are quantitatively coexpressed on a series of B-cell lines and their derived somatic cell hybrids. Cell Immunol 1982; 72:263-76. [PMID: 6983911 DOI: 10.1016/0008-8749(82)90474-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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40
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Jønsson V, Andersen BL, Brandrup F, Christensen BE, Rothenborg HW, Thomsen K. E receptor expression of T lymphocytes in T lymphoproliferative diseases. Scand J Haematol 1982; 28:329-34. [PMID: 6981201 DOI: 10.1111/j.1600-0609.1982.tb00534.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The lymphoid component of skin infiltrates from 6 cases of mycosis fungoides and 2 cases of T cell chronic lymphatic leukaemia consisted almost exclusively of T lymphocytes with abnormally high E receptor expression. Such T cells were also found to dominate the skin infiltrates from 10 patients with severe atopic dermatitis. Blood T lymphocyte counts from all types of patients were within the normal range, but even the blood T lymphocytes of the patients had a strong E receptor expression. The bone marrow in atopic dermatitis and in mycosis fungoides showed normal T cell counts with normal E receptor expression. Supported by basic lymphocyte-kinetic considerations it is likely that the skin in T lymphoproliferative diseases is characterized by an abnormal ability to home and/or to trap T lymphocytes with strong E receptor expression.
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41
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Jønsson V, Christensen BE, Videbaek A. Quantitation of complement C3b and C3d surface receptors on neoplastic IgM positive B lymphocytes. Acta Pathol Microbiol Scand C 1981; 89:269-74. [PMID: 6976063 DOI: 10.1111/j.1699-0463.1981.tb02698.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
C3b and C3d complement receptors on the surface of mononuclear cells from blood, lymph nodes, and spleens were investigated in twenty-nine CLL patients and in eight patients with non-Hodgkin malignant lymphoma. Compared with a normal material, especially the lymphoid tissues but also the blood of the patients contained a high number of C3d receptor positive lymphocytes with a strong expression of C3d receptors per cell. The majority of the cells with high C3d receptor expression also had SmIgM. The number of C3b receptor positive cells was decreased in the patients but the C3b receptor expression per cell was normal.
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42
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Christensen BE, Jønsson V, Videbaek A. [The spleen and the bone marrow]. Ugeskr Laeger 1981; 143:1778-80. [PMID: 7292763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Jønsson V, Klein G. Fc and C3 receptor patterns on two EBV- negative Burkitt lymphoma lines during acute exposure to EBV (P3HR-1 substrain). Eur J Cancer 1981; 17:161-5. [PMID: 6266834 DOI: 10.1016/0014-2964(81)90031-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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44
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Christensen BE, Scheibel EB, Krasilnikoff PA, Jønsson V. [Hemolytic-aplastic crisis in hereditary spherocytosis. Simultaneous acute development of severe anemia requiring transfusion in 5 family members]. Ugeskr Laeger 1980; 142:1990-2. [PMID: 7404817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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45
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Enk C, Jønsson V, Christensen BE. Human lymphocyte populations in blood after tetanus vaccination. Scand J Haematol 1980; 24:181-6. [PMID: 6990469 DOI: 10.1111/j.1600-0609.1980.tb02365.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The content of circulating T and B lymphocytes in 9 healthy volunteers was estimated before and after secondary vaccination with tetanus toxoid. E, Fc, and C3 receptors were demonstrated by rosette techniques and surface Ig by fluorescence technique. The absolute number of T and non-T (B) lymphocytes was simultaneously increased during the first 48 h and at 144 h after vaccination. The correlation between paired T and non-T (B) lymphocyte counts was enhanced after vaccination, probably reflecting mechanisms governing the traffic of lymphocytes.
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46
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Hansen MS, Christensen BE, Jønsson V. The effect of acetyl salicylic acid and dipyridamole on thromboembolic complications in splenectomized patients with myelofibrosis. Scand J Haematol 1979; 23:177-81. [PMID: 504965 DOI: 10.1111/j.1600-0609.1979.tb02689.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The effect of combined treatment with acetyl salicylic acid and dipyridamole on thrombic phenomena was studied in splenectomized patients with an aggressive form of myelofibrosis. 3 of these patients had thrombotic episodes, shortened platelet survival and an abnormal platelet aggregation pattern. The treatment with antiplatelet drugs resulted in a decreased platelet utilization as evidenced by clinical improvement and an increasing platelet concentration.
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47
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Jønsson V, Christensen BE. 51Cr labelling of normal human T and B lymphocytes for kinetic studies in vivo. Fundamental lymphocyte kinetic considerations. Scand J Haematol 1978; 20:319-29. [PMID: 306661 DOI: 10.1111/j.1600-0609.1978.tb02463.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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48
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Abstract
The occurrence of C3b and C3d complement receptors and of Fc and E receptors in normal splenic tissue was studied in cryostat sections incubated with specific marker cells. Thereby the topographic distribution of T and B lymphocytes in the splenic tissue was mapped: Te lymphocytes are found especially in the periateriolar sheaths, B lymphocytes in eccentric zones around the arterioles. The cells in the splenic pulp carry especially Fc, but also C3b receptors, whereas C3d receptors appear to be specific of lymphocytes. The basic lymphocyte traffic behind the mapped distribution of the lymphocyte subpopulations in the spleen was elucidated by lymphocyte kinetic studies using autologous 51Cr-labelled reinfused lymphocytes. These studies were performed partly on normal persons and partly on splenectomized persons without immune defects. The results indicate the presence of an exchangeable pool of T as well as of B lymphocytes in the spleen, the T cell pool being larger and making up in normals about 30% of the total exchangeable T lymphocyte mass. The matrix for the T lymphocyte pool in the spleen is the periateriolar sheaths. The difference in structure between the lymph nodes and the lymphoid tissue of the spleen, including differences in the distribution of lymphocyte subpopulations, are explained by the special vascular arrangement in the spleen.
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49
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