Establishment of CD7+ human myeloma sister cell lines, KMS-21-PE and KMS-21-BM, carrying t(11;14) and t(8;14)
| Autor: | Osamu Yamada, Kenichiro Yata, Mitsugi Ohkura, Masafumi Taniwaki, Keiko Isoda, Kenzo Uehira, Naozo Nakazawa, Yoshihito Yawata, Ayako Ueki, Hideho Wada, Takemi Otsuki, Haruko Sakaguchi, Katsunori Kouguchi |
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| Rok vydání: | 2001 |
| Předmět: |
Adult
Male Cancer Research Pleural effusion Bone Marrow Cells Antigens CD7 Biology Translocation Genetic Proto-Oncogene Proteins c-myc Cyclin D1 Ammonia hemic and lymphatic diseases medicine Tumor Cells Cultured Humans Hyperammonemia Post-translational regulation Multiple myeloma Chromosomes Human Pair 14 Chromosomes Human Pair 11 Hematology medicine.disease Molecular biology Pleural Effusion Malignant High surface medicine.anatomical_structure Oncology Cell culture Bone marrow Multiple Myeloma Chromosomes Human Pair 8 |
| Zdroj: | Leukemialymphoma. 42(4) |
| ISSN: | 1042-8194 |
| Popis: | Two new human myeloma cell lines were established from pleural effusion and bone marrow malignant cells derived from a single patient, who manifested hyperammonemia associated with multiple myeloma, and these were characterized. Both lines possess t(11;14)(q13;q32) and t(8;14)(q24;q32) reciprocal translocations and overexpress cyclin D1, but not c-myc. Human myeloma lines including these new lines produced and secreted excess ammonia into culture medium more than non-myelomatous hematological cell lines. In addition, these two lines were revealed to have high surface CD7 expression correlated with relatively high mRNA expression by MP-RT-PCR. Among 8 human myeloma lines, half of them revealed significant surface expression of CD7 and a positive correlation between expression levels of protein and message. CD7 message was also detected in surface negative lines. Consequently, there may be posttranslational regulation of the CD7 molecule, whose cellular biological role in expressing cells has not been elucidated. |
| Databáze: | OpenAIRE |
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