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Query: UMLS:C0027819 (neuroblastoma)
 27,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Monoclonal antibodies were produced by immunizing rats with human small cell lung carcinoma (SCLC) cell lines. Monoclonal antibodies 600D11 and 624A12 were found to be directed against the ceramide pentasaccharide that contains the lacto-N-fucopentaose III (LNFP III) sequence of sugars, an isomer of the Lewis A blood group antigen. LNFP III is an immunodominant antigen whose reactivity is maintained in formalin-fixed paraffin-embedded sections (PS). LNFP III has been recognized in a number of human tumors including: SCLC; adenocarcinomas of the breast, gastrointestinal tract, genitourinary tract, and lung; renal cell carcinoma; neuroblastoma; and myelogenous leukemia. We now report the normal adult and fetal tissue distribution of the LNFP III antigen by immunoperoxidase staining on PS utilizing 600D11 and 624A12. Binding was demonstrated in bronchial epithelium and bronchial glands; squamous epithelium of the esophagus; gastric crypts, duodenal enterocytes and Brunners glands; argentaffin cells; jejunal and colonic goblet cells; pancreatic acinar cells; salivary glands; endocervical and exocervical cells; skin epidermis; myelinated motor fibers; cells of the adrenal medulla and anterior pituitary gland; polymorphonuclear leukocytes (PMNs); tissue macrophages and renal proximal tubules and loops of Henle. Staining was localized to cell membranes and within the cytoplasm, with greatest intensity at the apical and basal portions of the cells. These staining patterns were noted in adult and neonatal tissues, and initial expression could be traced to approximately the second trimester of fetal development. Knowledge of the normal tissue distribution of this immunodominant antigenic determinant may offer insight into its structural and functional role in benign and malignant tissues.
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PMID:Immunohistochemical localization of the immunodominant differentiation antigen lacto-N-fucopentaose III in normal adult and fetal tissues. 637 43

The principle of centrifugal elutriation (CE) depends on a balance of an outwardly directed centrifugal force and inwardly directed fluid flow and buoyant forces. This method (CE) can be used effectively to separate cells on the basis of size. In the murine model, neoplastic cells from different tumors are generally larger than bone marrow cells and can be removed from bone marrow almost completely with centrifugal elutriation. In order to determine if CE is capable of eliminating human tumor cells from harvested bone marrow (BM), the biophysical characteristics of a variety of human tumor cells and bone marrow cells were determined. Human tumor cells were dispersed into single cell suspensions by several enzymatic digestion and mechanical dissociation methods. The size and density characteristics of these cells were determined with an electronic particle counter and channelyzer and density gradients. Of 40 solid tumors studied, 29 tumors had cell size distributions distinctively larger than BM, as was found in the experimental animal model. The cell size distributions of tumor cells from 11 solid tumors and 7 leukemias were not substantially different from that of BM. Mixtures of BM and cultured human hypernephroma, ovarian, and neuroblastoma cells, were separated into BM and tumor fractions by CE. The separation results as indicated by the labeling index and colony forming efficiency of tumor cells in each fraction showed that a BM fraction virtually free of tumor cells could be obtained. Thus, CE should be able to separate BM cells from most tumor cells metastatic to BM.
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PMID:Characterization of the biophysical properties of human tumor and bone marrow cells as a preliminary step to the use of centrifugal elutriation in autologous bone marrow transplantation. 638 63

Compensatory renal growth has been observed following contralateral nephrectomy in man and in certain animals. In a recent study of murine Wilms' tumor, tumor growth was observed to be affected by contralateral nephrectomy; therefore, a murine renal cell adenocarcinoma and neuroblastoma were evaluated. Comparison of tumors in sham-nephrectomized animals to tumors in mice who had undergone unilateral nephrectomy showed no significant increase in tumor weights. However, the contralateral kidney in the uninephrectomized animals had increased in weight as compared to that in tumor-bearing intact mice and the kidneys removed at uninephrectomy. This study demonstrates that factors influencing compensatory renal growth do not affect all renal tumors or other solid tumors.
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PMID:Effect of unilateral nephrectomy on tumor growth of the murine renal cell adenocarcinoma and neuroblastoma. 650 97

In this paper we review the current data on the role of potentially lethal damage (PLD) recovery in human tumour cell lines, both in vitro and in vivo. In the case of cell lines studied in vitro, the mean recovery ratios found were higher for cells derived from tumours of low curability (glioblastoma, hypernephroma, osteosarcoma, melanoma) than for cells derived from tumours of high curability (breast carcinoma, neuroblastoma). Experiments were performed in vivo only with tumours of low and intermediate curability (melanoma, adenocarcinoma of the colon, pancreatic tumour). Although fragmentary and obtained only with established cell lines, these results argue in favour of the occurrence of PLD repair in human tumour, the amplitude of this repair being, in certain cases, sufficient to explain the incurability of a tumour by radiation therapy.
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PMID:Potentially lethal damage repair as a possible determinant of human tumour radiosensitivity. 650 62

In normal conditions, neuron-specific enolase (NSE) is histochemically demonstrable only in neurons and cells of the amine precursor uptake and decarboxylation (APUD) system. This has been found not to be true for neoplastic cells. Several types of CNS tumors, including glioblastoma, astrocytoma, oligodendroglioma, ependymoma, medulloblastoma, pineocytoma , meningioma, and choroid plexus papilloma, focally stained positively for NSE. Reactive astrocytes were also frequently positive. In the peripheral nervous system, neuroblastoma, ganglioneuroma, and paraganglioma stained positively for NSE. A number of non-APUD tumors were focally positive. These included schwannoma, carcinoma and fibroadenoma of the breast, renal cell carcinoma, giant cell tumor of the tendon sheath, and chordoma. Caution should be exercised in relying on the immunohistochemical demonstration of NSE as a diagnostic marker in those tumors that do not belong to the APUD cell system. It seems of little value as evidence of differentiation in CNS tumors.
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PMID:Immunohistochemical demonstration of neuron-specific enolase in neoplasms of the CNS and other tissues. 654 18

Mouse monoclonal antibodies to several cell surface antigens of human ovarian and endometrial carcinomas have been produced. The distribution of the antigens was determined by mixed hemagglutination assays on 153 normal and malignant cell cultures of various types and by immuno-peroxidase staining of frozen sections of 27 normal adult and 24 fetal tissues. Five distinct antigens were characterized. MD144 antigen was detected on only a single ovarian carcinoma cell line and has the biochemical properties of a lipid. MH55 antigen is weakly expressed on ovarian and uterine cancer cell lines but not on other cells and tissues tested. MF61 antigen was detected on an ovarian carcinoma and some renal carcinoma cell lines but not on other cell lines tested. It was also detected by immunoperoxidase staining in the noncellular follicles of the thyroid and in uterine glandular epithelial cells. This antigen also has the properties of a lipid. MF116 antigen was detected on a proportion of ovarian, uterine, renal, and bladder carcinoma and neuroblastoma cell lines and on normal kidney epithelial cell cultures but not on other cell lines tested. It was not detected in sections of any normal tissue tested using the immunoperoxidase method. MF116 was readily detected in the spent culture medium but not in detergent-solubilized extracts of metabolically radiolabeled cells. This shed antigen is a glycoprotein of Mr 105,000 and isoelectric point lower than pH 4.0. MH94 antigen was detected on a proportion of ovarian, uterine, colon, breast, lung, cervical, and pancreatic carcinoma cell lines. In tissue sections it was detected in many but not all epithelia, predominantly in secretory epithelial cells. Antibody MH94 did not immunoprecipitate a detectable antigen.
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PMID:Cell surface antigens of human ovarian and endometrial carcinoma defined by mouse monoclonal antibodies. 658 12

The expression of 13 newly defined human cell surface antigens identified by monoclonal antibodies was studied in a panel of reduced rodent-human somatic cell hybrid clones. For each antigenic system the segregation of antibody reactivity was concordant with the segregation of a specific human chromosome, permitting the chromosomal assignment of 13 gene loci determining antigen expression. The antigens can be placed in four groups on the basis of their patterns of control in the hybrid cells. (i) Presence of a single human chromosome is necessary and sufficient for antigen expression; L230 (assigned to chromosome 2), AJ425, K15 (chromosome 3), SR84 (chromosome 5), JF23, Q14 (chromosome 11), SV13 (chromosome 15), and F10 (chromosome 19). (ii) AJ2 (chromosome 10) and J143 (chromosome 17); two antigens coded for by separate human chromosomes but associated as a molecular complex on the surface of AJ2+/J143+ human cells. (iii) F8 (chromosome 19); antigen expression dependent on the growth characteristics of hybrid cells: substrate-adherent cells are F8+, whereas cells growing in suspension are F8-. (iv) AO122 and F23 (chromosome 15); antigen expression controlled by the permissive/inducing vs. nonpermissive/noninducing nature of the rodent fusion partner. Hybrids derived from both antigen-positive and antigen-negative human cells can express AO122 and F23 but only when specific rodent cell types are used for hybridization: N4TG-1 neuroblastoma and L cells, but not RAG renal carcinoma cells, permit AO122 expression, whereas RAG and L cells, but not N4TG-1 cells, permit F23 expression. The rapidly expanding list of monoclonal antibodies defining human cell surface molecules provides a range of markers to probe the genetic regulation of antigen diversity in somatic cells.
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PMID:Somatic cell genetic analysis of human cell surface antigens: chromosomal assignments and regulation of expression in rodent-human hybrid cells. 659 9

We have studied the repair of X-ray-induced, potentially lethal damage (PLD) in 9 human tumour lines derived from tumours of varying radiocurability. Cells derived from 3 tumours considered non-radiocurable (1 osteosarcoma, 2 melanoma) repaired significantly more X-ray PLD than cells from 3 tumours considered radiocurable (2 breast, 1 neuroblastoma). The remaining tumour lines were intermediate in their ability for repair, and included cells from another osteosarcoma, a hypernephroma and a glioblastoma. We conclude that the repair of X-ray PLD may be an important cellular determinant of clinical radiocurability.
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PMID:Cellular repair factors influencing radiocurability of human malignant tumours. 705 52

A review was made of the clinical data of 28 patients with metastatic orbital disease diagnosed in our clinic between 1972 and 1993. Fifteen were men and 13 were women. The average age at diagnosis was 58.7 years. The right orbit was involved in 12 and the left orbit in 14 cases. Two cases had bilateral orbital involvement. Breast carcinoma was the most frequent tumor (8 of 28, 28.6%) followed by neuroblastoma (7 of 28, 25.0%), lung carcinoma (6 of 28, 21.4%), prostate carcinoma (3 of 28, 10.7%), gastrointestinal carcinoma (2 of 28, 7.1%), renal cell carcinoma and thyroid carcinoma (1 of 28, 3.6% each). Proptosis (67.9%), motility disturbance (57.1%) and mass (50.0%) were the three most common presenting signs. Enophthalmos was noted in two cases with breast carcinoma. Nine cases presented with ophthalmic signs and metastatic tumor was recognized later. In the remaining 19 cases, the diagnosis of the primary tumor preceded the onset of orbital metastasis. The time interval between the detection of the primary malignancy and metastatic orbital tumor was shortest for lung carcinoma (mean: 2 months) and longest for breast carcinoma (mean: 34 months). Radiotherapy and chemotherapy were applied in 12 cases. Improvement in orbital signs and visual acuity was noted in 5 cases. Radiotherapy, chemotherapy and hormonal therapy were used in 8 patients and improvement in orbital signs was noted in 4 of these patients. Four of 28 patients (2 with breast carcinomas, one with prostate carcinoma and one with thyroid carcinoma) survived longer than 5 years.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Metastatic orbital tumors. 764 86

Renal cell carcinoma is unusual in children. We report a case of anaplastic renal cell carcinoma arising in a 7-year-old girl following treatment for Stage III neuroblastoma. The renal cell carcinoma has unusual histologic and ultrastructural features, which are discussed. The case is further unusual in that few children with advanced stage neuroblastoma survive long enough to develop second malignant neoplasms.
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PMID:Anaplastic renal cell carcinoma following neuroblastoma. 775 3


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