The tumor lacked two marker chromosomes, reciprocal translocation [rcp t(12; 15)], that in previous studies were found to be common to 3 other uncultured myelomas and 1 cultured mouse myeloma.
Our own results include the HLA-A, B, and C types in 68 patients, the G1m and Km allotypes in 86 patients, and the frequencies of ABO blood groups in 126 patients with multiple myeloma.
Our own results include the HLA-A, B, and C types in 68 patients, the G1m and Km allotypes in 86 patients, and the frequencies of ABO blood groups in 126 patients with multiple myeloma.
The use of two restriction endonucleases (HpaII and CfoI), the cleavage site for both of which contains a CG sequence and which only cleave when cytosine is unmethylated, indicated that ODC genes in the lymphocytic leukaemia cells were much less methylated than those in the normal leucocytes or in the Sultan cells.
The use of two restriction endonucleases (HpaII and CfoI), the cleavage site for both of which contains a CG sequence and which only cleave when cytosine is unmethylated, indicated that ODC genes in the lymphocytic leukaemia cells were much less methylated than those in the normal leucocytes or in the Sultan cells.
A complex translocation has interrupted the third exon of the c-myc gene in human plasma cell myeloma tumor cells and a derivative cell line (NCI-H929).
Myeloma tumor cells of almost 90% of the patients contained monoclonal clg and expressed the mature plasma cell antigen R1-3 as well as surface B2M; common acute lymphoblastic leukemia antigen (CALLA) was present in 55%, B2 in 17%, and B4 in 23% of samples studied.
The methylation state of CCGG sites in and around the human ornithine decarboxylase gene, oncogenes c-myc and erb-A1, and actin genes were determined in human malignant leucocytes from patients with acute and chronic myeloid leukemia, chronic lymphatic leukemia, polycythemia vera, and multiple myeloma by means of isoschizomeric restriction endonuclease analysis.
Eight reactive lymphatic tissues, 166 cases of non-Hodgkin lymphomas (NHL) and 11 cases of multiple myeloma were investigated for expression of the c-abl protein using the poly-clonal anti-abl antibody 4411 and an indirect peroxidase technique.
Deregulation of the expression of these interleukins was shown to be responsible for various diseases, such as i) IL-4 vs. immediate type hypersensitivity and ii) IL-6 vs. autoimmunity and multiple myelomas.
Unexpectedly, the mRNA extracted from MM plasma cell hybridized with TNF- and LT-specific, as well as IL-1-specific probes, although the culture supernatants did not contain detectable TNF/LT biologic activity.
Deregulation of the expression of these interleukins was shown to be responsible for various diseases, such as i) IL-4 vs. immediate type hypersensitivity and ii) IL-6 vs. autoimmunity and multiple myelomas.
Rearrangements of a member of the VH(V) family in a 9.5 kb fragment were also observed in two out of 20 lymphoblastoid cell lines obtained from peripheral blood of MM patients.