Biomaterial Database

Development of virus-accelerated thymic lymphoma in AKR mice. 1985

A Kato, and E F Hays

The progression of prelymphoma cells (PLC) in the bone marrow to lymphoma cells (LC) in the thymus in the presence of the lymphomagenic retrovirus SL3-3c was studied in a model system of virus-accelerated thymic lymphoma in AKR/J mice. On the average, a single LC appears in the thymus 30 days after the neonatal ip inoculation of SL3-3c virus; 50 days later, thymic lymphoma is clinically detectable. PLC in the bone marrow and oncogenic virus in the thymus are continuously present during this period before lymphoma develops. Biologically active oncogenic virus in the thymus increases as the animal nears the time of lymphoma development. Intrathymic inoculation, but not ip inoculation, of SL3-3c virus results in accelerated thymic lymphoma in 4- to 6-week-old AKR mice. PLC defined as a population of bone marrow-derived thymocyte progenitor cells susceptible to malignant transformation by oncogenic retrovirus after homing to thymus were further studied and characterized. PLC, like normal bone marrow thymocyte progenitors, were found to be radiosensitive and glucocorticoid resistant. Thymocytes of 21- to 28-day-old AKR mice, neonatally inoculated with SL3-3c virus, were studied for PLC. They could not be detected. It is concluded that lymphoma development is the final outcome of a series of events in which bone marrow-derived thymocyte progenitors are transformed after entering the thymus by virus in the thymic environment.

UI	MeSH Term	Description	Entries
D008223	Lymphoma	A general term for various neoplastic diseases of the lymphoid tissue.	Germinoblastoma,Lymphoma, Malignant,Reticulolymphosarcoma,Sarcoma, Germinoblastic,Germinoblastic Sarcoma,Germinoblastic Sarcomas,Germinoblastomas,Lymphomas,Lymphomas, Malignant,Malignant Lymphoma,Malignant Lymphomas,Reticulolymphosarcomas,Sarcomas, Germinoblastic
D008806	Mice, Inbred AKR	An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research.	Mice, AKR,Mouse, AKR,Mouse, Inbred AKR,AKR Mice,AKR Mice, Inbred,AKR Mouse,AKR Mouse, Inbred,Inbred AKR Mice,Inbred AKR Mouse
D001853	Bone Marrow	The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.	Marrow,Red Marrow,Yellow Marrow,Marrow, Bone,Marrow, Red,Marrow, Yellow
D002471	Cell Transformation, Neoplastic	Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.	Neoplastic Transformation, Cell,Neoplastic Cell Transformation,Transformation, Neoplastic Cell,Tumorigenic Transformation,Cell Neoplastic Transformation,Cell Neoplastic Transformations,Cell Transformations, Neoplastic,Neoplastic Cell Transformations,Neoplastic Transformations, Cell,Transformation, Cell Neoplastic,Transformation, Tumorigenic,Transformations, Cell Neoplastic,Transformations, Neoplastic Cell,Transformations, Tumorigenic,Tumorigenic Transformations
D006854	Hydrocortisone	The main glucocorticoid secreted by the ADRENAL CORTEX. Its synthetic counterpart is used, either as an injection or topically, in the treatment of inflammation, allergy, collagen diseases, asthma, adrenocortical deficiency, shock, and some neoplastic conditions.	Cortef,Cortisol,Pregn-4-ene-3,20-dione, 11,17,21-trihydroxy-, (11beta)-,11-Epicortisol,Cortifair,Cortril,Epicortisol,Hydrocortisone, (11 alpha)-Isomer,Hydrocortisone, (9 beta,10 alpha,11 alpha)-Isomer,11 Epicortisol
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012190	Retroviridae	Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES).	Leukemogenic Viruses,Leukoviruses,Oncornaviruses,Oncovirinae,Oncoviruses,Oncoviruses, Type C,RNA Tumor Viruses,Retroviruses,Type C Oncoviruses,C Oncovirus, Type,C Oncoviruses, Type,Leukemogenic Virus,Leukovirus,Oncornavirus,Oncovirus,Oncovirus, Type C,RNA Tumor Virus,Retrovirus,Tumor Virus, RNA,Tumor Viruses, RNA,Type C Oncovirus,Virus, Leukemogenic,Virus, RNA Tumor,Viruses, Leukemogenic,Viruses, RNA Tumor
D013950	Thymus Gland	A single, unpaired primary lymphoid organ situated in the MEDIASTINUM, extending superiorly into the neck to the lower edge of the THYROID GLAND and inferiorly to the fourth costal cartilage. It is necessary for normal development of immunologic function early in life. By puberty, it begins to involute and much of the tissue is replaced by fat.	Thymus,Gland, Thymus,Glands, Thymus,Thymus Glands
D013953	Thymus Neoplasms	Tumors or cancer of the THYMUS GLAND.	Cancer of Thymus,Thymus Cancer,Thymus Tumors,Cancer of the Thymus,Neoplasms, Thymic,Neoplasms, Thymus,Thymic Cancer,Thymic Neoplasms,Thymic Tumors,Cancer, Thymic,Cancer, Thymus,Cancers, Thymic,Cancers, Thymus,Neoplasm, Thymic,Neoplasm, Thymus,Thymic Cancers,Thymic Neoplasm,Thymic Tumor,Thymus Cancers,Thymus Neoplasm,Thymus Tumor,Tumor, Thymic,Tumor, Thymus,Tumors, Thymic,Tumors, Thymus
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor