Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027819 (neuroblastoma)
 27,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

C1300 neuroblastoma was implanted with regenerating skeletal muscle to study the role of tissue interactions during tumor cell differentiation. Combined tumor-muscle implants, placed subcutaneously or within diffusion chambers were compared with control tumors implanted without muscle. Neuroblastoma implanted with injured muscle undergoes a partial neuronal differentiation. The tumor cells lose their normal round cell configuration and develop numerous cytoplasmic processes. Accompanying these outward changes are an increased content of microtubules in the neuritic processes; the appearance of glial-like processes containing abundant microfilaments; and the occurrence of growth vesicles identical to those of the growth cones of normal neurites. Although the implants usually contain large numbers of regenerated myofibers, tumor cell differentiation is not dependent upon the presence of these newly formed fibers. Tumor differentiation occurs equally well on the surfaces of degenerating muscle fragments, fibrin deposits and on the membrane surfaces of the diffusion chambers. These observations suggest that non-specific cell surface phenomena, rather than neuromuscular interactions were primarily responsible for the tumor cell differentiation in vivo.
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PMID:The in vivo differentiation of murine neuroblastoma. 41 56

Based on the Third National Cancer Survey (1969 to 1971), the incidence of malignant neoplasms in the United States was 183.4 per million live births per year in infants younger than 1 year and 36.5 in newborns younger than 29 days. In both age groups, neuroblastoma was the most commonly diagnosed neoplasm. Overall, cancer incidence in infants younger than 1 year was almost 3.5 times greater than mortality determined from US death certificates from 1960 to 1969. For individual tumor types, the ratio between incidence and mortality varied between 159 for retinoblastoma and 1.5 for leukemia largely reflecting relative differences in survival due to treatment.
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PMID:US cancer incidence and mortality in the first year of life. 42 Jan 85

A girl with congenital extraadrenal neuroblastoma died at 3 months of age with multiple parenchymal metastases in the brain and spinal cord. The bones of the skull, cranial dura, venous sinuses, and orbits were not involved. Autopsy findings suggest that the tumor penetrated the spinal meninges and disseminated through the cerebrospinal fluid. It is possible that hematogenous metastasis occurred as well. The intracerebral metastases were not identified on a CT scan performed several hours before the child's death.
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PMID:Retroperitoneal neuroblastoma widely metastatic to the central nervous system. 42 83

Of 63 99mTc-phosphate bone images in 49 patients with neuroblastoma, 41 were abnormal, 17 showed tracer uptake within the primary tumor, 29 showed evidence of skeletal metastatic disease, and 17 demonstrated renal/urinary tract involvement. The metastases were asymmetric in 24 patients and symmetrical in 9, in whom they involved the metaphyses and epiphyses of the long bones. Except for one patient with multiple "cold" areas, all metastases were seen as focal hyperactive regions. Eleven of 42 skeletal radiographic surveys were abnormal. The radionuclide study appears to be more accurate than skeletal radiography in estimating bone involvement in neuroblastoma. Primary tumor concentration of the tracer is almost pathognomonic of neural crest neoplasms in childhood.
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PMID:Radionuclide skeletal survey in neuroblastoma. 44 41

Single subcutaneous inoculation of human adenovirus type 12 (Ad.12), 0.05-0.1 ml of 10(8.0) TCID50 HEK cells/0.1 ml, was made on the back of 0-day-old hamsters. In 21 of 25 hamsters (84.0%), multiple solid tumors developed close to the inoculation site within 3 months. No control hamsters developed tumors. Tumor histopathology revealed the characteristic Homer Wright rosettes of neuroblastoma. Ad. 12-specific tumor antigens were demonstrable in both the primary and the cultured tumor cells by the immunofluorescein technique. Histochemical demonstration of cholinesterase and NADH oxidoreductase gave rise to a predominantly positive intracytoplasmic granule within the tumor cells. Electron microscopy showed remarkably uniform cell morphology: small, undifferentiated neuroblastic cells with poorly developed intracytoplasmic organelles; many possessed characteristic solitary cilia in a 9 + 0 tubules pattern. Intercellular junctions were poorly developed. Search for an incipient tumor cell aggregate by means of immunofluorescein T-antigen detection was carried out through a 240-h period following Ad. 12 inoculation. A sequential study in parallel with electron microscopic examination of the normal subcutaneous tissue proved that neuroblastic cells closely associated with the muscle spindle anlage could preferentially become the most sensitive target for Ad. 12 tumorigenesis.
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PMID:Cell origin of human adenovirus type 12-induced subcutaneous tumor in Syrian hamsters. 44 84

The potential difference in survival due to scheduling of cyclophosphamide treatment was examined in A/J mice inoculated with neuroblastoma C1-1300 cells. Treatment was started on the third day post tumor implantation. There were four groups of animals each consisting of 30 mice: Group A, a control group, was injected with 0.3 cc of normal saline for a week. Group B was injected with cyclophosphamide 50 mg/kg/day every other day for five doses. This cycle was repeated in the same fashion starting on day 17. Group C was injected with cyclophosphamide 250 mg/kg on day 3 and this was repeated on day 17. Group D was injected with cyclophosphamide 50 mg/kg/day for five consecutive days. This cycle was repeated on day 17-21. The median survival for group B was 26.2 days (the same as the control group), for group C 47.7 days (87% increased survival) and for group D 63.2 days (143% increased survival with 30% possible cures). Twenty-three percent of the mice in group B died of pneumonia and another 23% had minor evidence of lung infection. Only three mice in this group had tumor at the time of death. The study suggests that the response of murine neuroblastoma as well as the development of pneumonia in A/J mice treated with cyclophosphamide might be schedule dependent.
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PMID:The effect of drug schedule on mouse neuroblastoma treated with cyclophosphamide. 45 39

Serum samples from eleven children with neuroblastoma were drawn at diagnosis and again every 15 days or a month after the beginning of treatment over the course of 17 months observation. Twenty healthy children of the same age with no appreciable clinical manifestation were also studied as controls. Investigations included quantitative serum complement levels (total complement hemolytic activity, C3 and C4), anticomplementary serum activity and urine catecholamine levels (VMA and HVA). Complement levels of tumor patients were significantly higher than those of healthy subjects, but fluctuations were seen at different stages of the disease; patients at admission with active tumors or tumor recurrence had higher complement levels than those of patients in remission. Temporary recurrences of the disease were usually accompanied by fluctuations of urinary catecholamines, serum complement levels (mainly C3) and anticomplementary serum activity. At the terminal phase of the disease a drop in complement levels was usually seen, while urinary catecholamines were progressively increasing.
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PMID:Fluctuation of serum complement levels in children with neuroblastoma. 45 27

Application of computed tomography (CT) to neck masses has received little attention. The authors reviewed 10 cervical masses studied with CT as well as conventional imaging modalities. CT was extremely useful in defining both the osseous and soft-tissue extent of the lesion. In several instances, CT was able to show the relationship of the tumor to the spinal canal. When combined with angiography, CT demonstrated the relationship of the major cervical vascular channels to the lesion. Pathological conditions included neurofibroma, chordoma, branchial cleft cyst, neuroblastoma, lymphoma, neurilemmoma, and metastatic carcinoma.
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PMID:The role of computed tomography in the evaluation of neck masses. 47 83

ICRF-159 is active in several animal tumor model systems and human adult malignancies. In this phase II study, ICRF-159 was given on a weekly schedule, 3000 mg/m2/day, orally in three divided doses at 6-hour intervals to 78 children with a variety of malignant neoplasms. Fifty-three patients were evaluable for tumor response. Toxicity was primarily hematopoietic and gastrointestinal. There were no responses in any of the eight patients with osteogenic sarcoma, four with lymphoma, five with Ewing's sarcoma, ten with neuroblastoma, or six with rhabdomyosarcoma. There was a transient partial response in one of four children with Wilms' tumor. Further trials with this drug using this schedule are not indicated for the common childhood solid tumors.
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PMID:ICRF-159 (razoxane) in the treatment of pediatric solid tumors: a Southwest Oncology Group study. 47 12

A case of neuroblastoma in a 4-yr-old boy presenting with the nephrotic syndrome is reported. Nether thrombosis nor stenosis of the renal veins and the inferior vena cava was present. Electron microscopy revealed lumps of subepithelial deposits as well as thickening and tortuosity of the glomerular basement membrane compatible with membranous nephropathy. It is postulated that deposition of neuroblastoma-associated immune complexes on the glomerular basement membrane-was responsible for the development of the nephrotic syndrome in this patient. Five pediatric cases of nephrotic syndrome associated with extrarenal neoplasia were collected from the world literature and are briefly discussed.
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PMID:Neuroblastoma presenting with the nephrotic syndrome. 49 Feb 83


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