Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0026764 (multiple myeloma)
 36,148 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two cases of the development of acute myeloid leukemia (AML) after treatment with alkylating agents are reported. In Case 1, melphalan and then cyclophosphamide had been given for multiple myeloma. 46 months after onset of cytostatic treatment AML occurred, as confirmed cytochemically and by qualitative determination of urinary lysozyme. In Case 2, cyclophosphamide had been given for rheumatoid arthritis. After a latency of 34 months 'smouldering leukaemia' developed with an atypical monocytic leukaemic cell population. In a third case, multiple myeloma and monocytic leukaemia developed synchronously. The causative role of melphalan and cyclophosphamide in the development of AML seems securely established. Despite the risk of alkylating agents in the treatment of multiple myeloma or Hodgkin's disease causing AML, they should not be replaced, as other drugs have been shown to be less beneficial. On the other hand, alkylating agents should be used with great caution in the treatment of non-malignant diseases.
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PMID:[Plasmocytoma, alkylating agents, and acute myeloid leukemia (author's transl)]. 105 6

The specific antiserum against a type of ferritin that is especially common to leukemia cells and the placenta was used to test, by countercurrent immunoelectrophoresis, sera from humans with various diseases. The best results were obtained with leukemia; patients with chronic myelogenous leukemia in blastic phase, acute myelogenous leukemia, lymphogenous leukemia, and unclassifiable juvenile leukemia frequently showed a positive reaction, but patients with chronic myelogenous leukemia in static phase did not. The average incidence of positive reaction among all leukemia patients was 54.0%. Patients with other malignant tumors (i.e., multiple myeloma, malignant lymphoma and carcinomas of the stomach, rectum, and liver) also often showed a positive reaction. The average incidence of positive reaction among all the patients with malignant diseases of the hematopoietic system, except for leukemia, was 34.3%, and that among patients with nonhematologic malignant neoplasms was 36.8%. However, the incidence of a positive reaction in patients with benign diseases and healthy individuals was less than 3%.
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PMID:Antiserum against leukemia cell ferritin as a diagnostic tool for malignant neoplasms. 105 55

An analysis of red cell membrane proteins in acute and chronic lymphatic leukaemia, Hodgkin's disease, lymphosarcoma, and myeloma was carried out. The electrophoretic pattern after solubilisation in urea or SDS was examined, along with migration on cellulose acetate or acrylamide in different buffers. Protein acid, basic and neutral amino acid percentages were also determined. An increase in low molecular weight and faster anodic migration proteins was noted in the lymphoblastoses, whereas the amino acid spectrum of these proteins showed percent changes in the case of some amino acids, particularly glutamic acid, phosphoserine, lysine and histidine. The alterations observed were compared with those noted previously in other haemoblastoses, congenital haemolytic and anhaemolytic blood diseases, and endoglobular or acquired metabolic defects in a closer assessment of their significance.
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PMID:[Changes in membrane proteins in the erythrocytes of patients with hemolymphoblastosis not directly involving the erythroblastic line]. 106 86

The diagnosis of multiple myeloma was made in two white men, aged 55 and 59 years. They were treated with cyclophosphamide for 98 and 44 months respectively. Patient 1 also received a nine-month course of combined therapy with melphalan, procarbazine, and prednisone. Both developed acute erythroid leukemia, 98 and 71 months after the original diagnosis of myeloma, and died of subarachnoid hemorrhage and cardiac arrest. Patient 1 developed squamous cell carcinoma of the skin with recurrence, and Patient 2 developed anaplastic carcinoma of the urinary bladder. Palliative radiation therapy was given. The development of erythroid leukemia plus carcinoma in these two men suggests mutagenic change secondary to cyclophosphamide therapy.
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PMID:Acute erythroid leukemia after cyclophosphamide therapy for multiple myeloma: report of two cases. 106 31

A case of diffuse normolipemic plane xanthome showing no association with systemic disease (multiple myeloma, leukemia, reticulosis, or dysglobulinaemia), in a 50 year old female, is reported. The patient presented hypersensitivity to the erythrogenic spectrum with pathological response and lowered MED. The B lymphocytes in the peripherical blood was raised. The authors postulated that B lymphocytes probably play an important role in the pathogenesis of the skin light-induced reactions.
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PMID:[Disseminated plane xanthoma with photosensitization]. 108 34

A human cell line established in culture from a histiocytic lymphoma patient synthesizes and secretes the monocyte-granulocyte specific enzyme lysozyme. 18 other human cell lines with characteristics of T-lymphocyte, B-lymphocyte, Burkitt's lymphoma, non-Burkitt's lymphoma, myeloma, and bone marrow epithelial cells were not associated with lysozyme. Among murine cell lines, lysozyme was produced by (a) three histiocytic lymphoma or macrophage lines, which mediate antibody-dependent phagocytosis and cytolysis; (b) myelomonocytic leukemia line which also secretes myeloid colony-stimulating factor; and (c) a spontaneous lymphoma and an Abelson leukemia virus-induced lymphoma. Lysozyme-negative lines include another Abelson lymphoma, myelomas, T lymphomas, and mastocytoma.
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PMID:Lysozyme synthesis by established human and murine histiocytic lymphoma cell lines. 108 90

Chromosomal findings are reported in three patients with acute myelomonocytic leukemia and in one with reticulosarcoma leukemia who had been treated for multiple myeloma with melphalan and X-ray. All four patients had striking chromosomal anomalies. An iatrogenic causation of aneuploidy is suggested. This is supported by chromosomal findings in patients with acute leukemia following polycythemia vera and Hodgkin's disease; practically all of the leukemias have been aneuploid. A comparison is made of such "secondary" acute leukemias with "primary" acute leukemias that are aneuploid in only 40% of the cases. Chromosomal changes are not considered to be the initial event in leukemogenesis.
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PMID:Chromosome studies in acute leukemias developing in patients with multiple myeloma. 109 66

The cohort mortality experience of radiologists over a 50-year period has been compared to that of other specialists with low levels of radiation exposure. The 1920-1929 cohort of radiologists who joined the Radiological Society of North America had the highest mortality for several chronic diseases. After this early period, radiologists ranked highest only for cancer mortality. The excess risk of leukemia which was observed in the 1920-1929 and 1930-1939 cohorts has subsequently decreased. During the same period, lymphoma mortality, especially multiple myeloma, has been increasing with a significant excess of deaths appearing in radiologists who entered the specialty society between 1930-1939 and 1940-1949. A posible relationship between this finding and immunologic changes induced by radiation has been proposed.
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PMID:The current mortality rates of radiologists and other physician specialists: specific causes of death. 111 59

Cytogenetic studies have been carried out on bone marrow aspirates from 25 patients with myelomatosis. Abnormal stem lines were present in 7 of the patients; the remainder had a diploid chromosome complement. In most patients - also in those without an abnormal clone - some metaphases had a blurred appearance similar to that seen in bone marrow aspirates from patients with acute leukaemia. In many of the chromosome preparations obtained before cytostatic therapy some metaphases with structural aberrations on the chromosomes were seen. Evidence is presented that in the patients with abnormal stem lines in the bone marrow, the chromosome abnormalities are confined to the myeloma cells and are not found in the erythrocytic or granulocytic precursors, which thus do not seem to be involved by the neoplastic process. Based on the present resuts and on a review of the relevant literature some general cytogenetic features are emphasized which may contribute to a better understainding of the disorder. Especially, it is demonstrated that in myelomatosis the cytogenetic changes are much more uniform than in other malignant disorders with the exception of chronic myeloid leukaemia.
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PMID:Cytogenetic studies in myelomatosis. 114 23

Seventeen human hematopoietic cell lines were tested by indirect immunofluorescence (IF) for reactivity with human serum containing smooth-muscle antibodies (SMA). The correlation of the IF pattern to the cell surface ultrastructure was revealed by scanning electron microscopy (SEM). Lymphoma cells, viewed by SEM, had short villi over the entire cell surface, but, by IF, showed a type of membrane fluorescence. Cells of lymphoblastoid lines had thin, long surface villi, sometimes asymmetric but most often distributed over the whole cell surface. Myeloma and leukemia cells, which had few membrane villi but a surface covered by "blebs" as revealed by SEM, demonstrated, by IF, only a few stub-like projections extending from the surface. Time-lapse cinematography revealed that the intensity and pattern of SMA staining were also correlated to the degree of motility. Indirect IF with human SMA-positive serum might be used in the classification of cell lines derived from human hematopoietic tissue.
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PMID:Reactivity of smooth-muscle antibodies, surface ultrastructure, and mobility in cells of human hematopoietic cell lines. 118 2


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