Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.1.3.1 (alkaline phosphatase)
 47,916 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The clonal cell line HT29-D4 is able to differentiate by two different ways: i) by replacing glucose by galactose in the culture medium; ii) by addition of suramin (a drug known to interfere with the growth promoting activity of growth factors) in the medium. In both cases the transition in the organization of the cell monolayer occurred without cell loss. The two ways (i.e., glucose starvation or suramin addition) lead to polarized cells which generate electrically active cell monolayers (Fantini et al., Biol. Cell 65, 163-169 (1989) and this paper). Yet several important differences can be observed at the morphological or at the electrophysiological levels. 1) The suramin-treated cells (HT29-D4-S cells) organized into monolayers of high (40-50 microns) columnar cells while glucose-starved cells (HT29-D4-Gal cells) were rather cuboidal (20-25 microns). 2) HT29-D4-S cells were highly polarized; the nucleus was rejected at the basal side of the cell and lysosomes in the upper part of the cytoplasm. Numerous lipid-like droplets surrounded with glycogen were observed underneath the nucleus. HT29-D4-Gal cells never presented such a degree of organization. 3) The transepithelial resistance and the potential difference of HT29-D4-S monolayers reached values significantly higher than those for HT29-D4-Gal monolayers, reflecting a higher degree of organization. Specific proteins such as sucrase-isomaltase, alkaline phosphatase and carcinoembryonic antigen were localized exclusively on the apical membrane while human lymphocyte antigen (HLA) class I molecules were restricted to the basolateral membrane for both HT29-D4-S and HT29-D4-Gal cells. The present data demonstrate that the same cells can generate a different degree of cellular organization according to the experimental conditions of cell growth, the most elaborate state of differentiation being obtained in the presence of suramin.
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PMID:Suramin-treated HT29-D4 cells grown in the presence of glucose in permeable culture chambers form electrically active epithelial monolayers. A comparative study with HT29-D4 cells grown in the absence of glucose. 232 32

The presence of specific gamma-glutamyl transpeptidase isoenzyme (gamma-GTPI) and variant alkaline phosphatase (VAALP) were concurrently determined, and levels of basic fetoprotein (BFP) and carcinoembryonic antigen (CEA) in addition to alpha-fetoprotein (AFP) were measured in 144 hepatocellular carcinoma (HCC) patients in order to evaluate the diagnostic value of these tumor markers with respect to AFP-low or -negative patients and the tumor stage. Serum AFP levels below 400 ng/ml, commonly seen in sera of hepatobiliary diseases other than HCC, were noted in 42% of the patients. The diagnostic usefulness was increased by combination assay of these markers except for CEA. A definitive diagnosis of HCC could be made in 78% of the patients by a combination of gamma-GTPI, VAALP and AFP. Moreover, a diagnosis of malignancy could be made in 87% of cases by the inclusion of BFP. The prevalence of BFP and CEA increased in proportion to the tumor stage, whereas that of AFP and gamma-GTPI were independent of stage and were high even in patients in comparatively early stages. Furthermore, secreting type markers such as AFP and gamma-GTPI were relatively useful for diagnosis of HCC when the lesions were still small.
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PMID:Serum tumor markers in patients with hepatocellular carcinoma: diagnosis of alpha-fetoprotein -low or -negative patients. 241 27

The present study describes 11 cases (10 carcinomas, one rhabdomyosarcoma) in which immuno-alkaline phosphatase labelling with monoclonal antibodies was used to demonstrate metastatic cells in routine smears of aspirated bone marrow. Carcinoma cells were detected using antibodies against epithelial cytokeratins, milk fat globule membrane antigen and carcinoembryonic antigen, and rhabdomyosarcoma cells with monoclonal anti-desmin. In four of the carcinoma cases it had not been possible to identify malignant cells in routinely stained marrow smears, whilst the case of disseminated rhabdomyosarcoma had initially been diagnosed (and treated) as a case of acute lymphoblastic leukaemia. The anti-cytokeratin antibody was found to be the most valuable of the anti-epithelial reagents used, since it labelled malignant cells in all of the 10 cases of carcinoma and gave the strongest reactions. These results suggest that immunocytochemical labelling should be used in cases of suspected carcinoma whenever conventional examination of marrow smears yields negative results, and furthermore (as illustrated by the case of rhabdomyosarcoma) that the technique is of value for identifying the true nature of poorly differentiated neoplasms in bone marrow.
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PMID:Detection of metastatic tumour cells in routine bone marrow smears by immuno-alkaline phosphatase labelling with monoclonal antibodies. 241 78

Eleven potential biochemical markers were measured in serum from 33 patients with malignant and 13 with benign colorectal disease: four isoenzymes (creatine kinase-BB, homoarginine-sensitive alkaline phosphatase, salivary-type amylase, and macro-creatine kinase type 2), five specific proteins (ferritin, alpha 1-acid glycoprotein, C-reactive protein, alpha 1-antitrypsin, and ceruloplasmin), one oncofetal antigen (carcinoembryonic antigen, CEA), and one hormone (beta human choriogonadotropin). The sensitivity of individual markers for the detection of early-stage malignancy (n = 11) ranged from 0% to 64% (CEA 18%); for late-stage colon malignancy (n = 12) from 8% to 83% (CEA 83%). Specificity in patients (n = 10) with benign intestinal disease ranged from 80% to 100% (CEA 100%). The five most-sensitive markers--C-reactive protein, alpha 1-glycoprotein, CEA, macrocreatine kinase type 2, and homoarginine-sensitive alkaline phosphatase--were selected for use as a "colon panel." In retrospective comparison, use of the colon panel instead of CEA alone increased sensitivity by 17% and 64% for late-and early-stage cancer, respectively; specificity, however, decreased by 30%, but should improve with serial testing.
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PMID:Multiple markers of malignancy in sera of patients with colorectal carcinoma: preliminary clinical studies. 241 37

The levels of carcinoembryonic antigen (CEA), embryonic prealbumin 1 and 2 (EPA-1 and EPA-2), thermostable alkaline phosphatase of placental type (TSAP), alpha-fetoproteins (AFP), trophoblastic beta-globulin (TBG), chorionic globulins 1 and 2 (CAG-1 and CAG-2) were determined in 36 fetal, 78 definitive, 31 hyperplastic, 38 adenomatous and 49 malignant tissues of the thyroid (control: 100 donor blood sera) using the immunodiffusion method after O. Ouchterlony modified by N. I. Khramkova and G. I. Abelev and the method of counter immunoelectrophoresis after K. Wilms. Oncofetal antigens TSAP, EPA-1, EPA-2 and CEA characteristic for antigenic reversion of thyroid tumors were identified in thyroid tissues. Antigenic reversion was most noticeable in tissues of papillary thyroid cancer. CEA and EPA-1 identification in the patients' blood sera could be applied to serological diagnosis of thyroid cancer.
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PMID:[Antigenic reversion in tumors of the thyroid]. 242 93

A panel of seven monoclonal antiepithelial antibodies of different specificities, including anticytokeratin, human milk fat globule membrane, C, and carcinoembryonic antigen (CEA) were used with the alkaline phosphatase-antialkaline phosphatase (APAAP) immunostaining technique to determine their value in the differentiation between benign and malignant mesothelial cells and lung carcinoma in histological preparations. The anticytokeratin antibody reacted strongly with all cases of reactive mesothelium, mesothelioma, and lung carcinoma. Antibodies to human milk fat globule membrane and the Ca antigen stained mesothelioma and carcinoma and 43% of cases of reactive mesothelium. Staining for carcinoembryonic antigen was not detected in reactive mesothelium or mesothelioma, but was present in most of the lung carcinomas. CEA seemed to be the single most useful marker in distinguishing carcinoma from mesothelioma in that a positive reaction for CEA would indicate carcinoma rather than mesothelioma.
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PMID:Immunohistological staining of reactive mesothelium, mesothelioma, and lung carcinoma with a panel of monoclonal antibodies. 243 31

Reported here is a 38-year-old woman who had a gastric cancer accompanied with liver metastasis. Abnormal serum levels of a carcinoembryonic antigen, alpha-fetoprotein, and an alkaline phosphatase isozyme were observed persistently after a gastrectomy. The properties of this alkaline phosphatase isoenzyme were identical to a hepatoma alkaline phosphatase type. Histologic findings of the stomach revealed a poorly differentiated adenocarcinoma. The patient died on the 180th postoperative day.
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PMID:[Carcinoembryonic antigen, alpha-fetoprotein and hepatoma alkaline phosphatase in gastric carcinoma]. 245 Feb 13

The immunoprofiles of 121 germ cell and trophoblastic neoplasms were defined, using a battery of antibodies against cytokeratin (CK), vimentin (VIM), epithelial membrane antigen (EMA), placental alkaline phosphatase (PLAP), S-100 protein, leukocyte common antigen (LCA), UCHL-1, LN-2, carcinoembryonic antigen (CEA), neuron-specific enolase (NSE), chromogranin A, Leu-7, alpha-fetoprotein (AFP), alpha-1-antitrypsin (AAT), and the beta subunit of human chorionic gonadotropin (BHCG). In addition to 85 neoplasms of testicular origin, the cases included eight ovarian germ cell tumors and 28 extragonadal neoplasms. All tissues had been subjected to formalin fixation and paraffin embedding. Similar immunoreactivity patterns were seen in gonadal and extragonadal neoplasms, gestational and nongestational choriocarcinomas, components of mixed germ cell tumors and their pure counterparts, and metastatic and primary lesions. Placental alkaline phosphatase was a sensitive marker of germ cell differentiation, and expression of this marker in the absence of EMA appeared to be a staining pattern unique to germ cell tumors. Both LCA and S100 were absent in neoplastic germ cells, and thus were useful in differentiating these tumors from malignant lymphoma and malignant melanoma, respectively. Cytokeratin was helpful in distinguishing seminomas/dysgerminomas from nonseminomatous germ cell tumors, although 10% of seminomas showed focal or diffuse cytokeratin reactivity. Finally, 75% of all germ cell neoplasms displayed NSE, calling the specificity of this determinant into question.
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PMID:Immunohistochemistry of germ cell and trophoblastic neoplasms. 245 24

Over the period of the past 9 years (1980-1988), 320 patients (mean age 60.9 +/- 13.2 years) suffering from various liver diseases have been examined. There were three main groups of patients: (1)--24 patients with primary liver cancer (PLC), 19 of them with hepato- and 5 with cholangiocellular carcinoma, (2)--153 patients with metastatic liver tumors (MLT), and (3)--143 patients with inflammatory liver diseases (ILD). The results of examination of alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), alkaline phosphatase (ALP) and gamma-glutamyl transpeptidase (GMT) in these patients have been analyzed with the aim to evaluate their contribution to the differential diagnostics of tumorous and inflammatory liver processes. For the diagnostics of malignant hepatoma AFP appeared to the most specific test. The significance of other tests for diagnostics of malignant hepatic diseases is obviously limited. These tests are recommended to be considered (in the case of their increase) in close connection with the clinical image and additional examinations. The importance of correlation between cirrhosis and malignant hepatoma is also to be noticed. In spite of all this, we believe that in the case of positivity of the above tests the patients have to be carefully examined and followed up, and that the clinical course and the dynamic of the mentioned tests has to be thoroughly observed. Because of the specificity of values of the AFP-test with malignant hepatoma, we find it useful to perform this test in all patients with chronic liver diseases.
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PMID:Alpha-fetoprotein, carcinoembryonic antigen and various biochemical tests in patients with tumorous and inflammatory liver diseases. 246 43

Three cases of so-called pulmonary sclerosing hemangioma have been studied for endothelial markers (alkaline phosphatase, adenosine triphosphatase, factor VIII-related antigen, and Ulex europaeus I lectin), for intermediate filaments (keratin, vimentin), and for carcinoembryonic and epithelial membrane antigen. Not one of the neoplasms expressed endothelial markers, carcinoembryonic antigen, or keratin reactivity. The tumor cells showed a positive reaction for epithelial membrane antigen and vimentin. The findings exclude an endothelial origin for this group of tumors and favored an epithelial origin as the probable genesis of the neoplastic proliferation.
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PMID:Sclerosing hemangioma of the lung. An immunohistochemical study of intermediate filaments and endothelial markers. 253 67


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