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Carbonic anhydrase II. A novel biomarker for gastrointestinal stromal tumors. 2010

Seppo Parkkila, and Jerzy Lasota, and Jonathan A Fletcher, and Wen-Bin Ou, and Antti J Kivelä, and Kyösti Nuorva, and Anna-Kaisa Parkkila, and Jyrki Ollikainen, and William S Sly, and Abdul Waheed, and Silvia Pastorekova, and Jaromir Pastorek, and Jorma Isola, and Markku Miettinen
Department of Anatomy, University of Tampere and Tampere University Hospital, Tampere, Finland. Seppo.Parkkila@uta.fi

Gastrointestinal stromal tumors (GISTs) are clinically distinct mesenchymal tumors, which generally result from expression of mutant KIT or PDGFRA receptor tyrosine kinase oncogenes. Most GISTs feature strong expression of KIT that serves as a crucial diagnostic adjunct. However, a subset of tumors lacks KIT expression and otherwise may also be difficult to distinguish from other sarcomas, including leiomyosarcoma. Because various carbonic anhydrase (CA) isozymes have been identified as potential treatment targets against different cancers, we evaluated CA II expression in 175 GISTs. Western blotting experiments indicated that CA II is highly expressed in GIST cell lines. Immunohistochemically, 95% of GISTs showed positive signal. The CA II expression in GISTs did not correlate with particular KIT or PDGFRA mutation types. CA II immunoreactivity was absent or low in other mesenchymal tumor categories analyzed. High CA II expression was associated with a better disease-specific survival rate than low or no expression (Mantel-Cox test, P<0.0001). The present results indicate that CA II is overexpressed in most GISTs, is quite selective to this tumor type among mesenchymal tumors, and therefore might be a useful biomarker in diagnostics.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D007414 Intestinal Neoplasms Tumors or cancer of the INTESTINES. Cancer of Intestines,Intestinal Cancer,Cancer of the Intestines,Intestines Cancer,Intestines Neoplasms,Neoplasms, Intestinal,Cancer, Intestinal,Cancer, Intestines,Cancers, Intestinal,Cancers, Intestines,Intestinal Cancers,Intestinal Neoplasm,Intestines Cancers,Intestines Neoplasm,Neoplasm, Intestinal,Neoplasm, Intestines,Neoplasms, Intestines
D007421 Intestine, Small The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM. Small Intestine,Intestines, Small,Small Intestines
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013274 Stomach Neoplasms Tumors or cancer of the STOMACH. Cancer of Stomach,Gastric Cancer,Gastric Neoplasms,Stomach Cancer,Cancer of the Stomach,Gastric Cancer, Familial Diffuse,Neoplasms, Gastric,Neoplasms, Stomach,Cancer, Gastric,Cancer, Stomach,Cancers, Gastric,Cancers, Stomach,Gastric Cancers,Gastric Neoplasm,Neoplasm, Gastric,Neoplasm, Stomach,Stomach Cancers,Stomach Neoplasm
D014408 Biomarkers, Tumor Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or BODY FLUIDS. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including HORMONES; ANTIGENS; amino and NUCLEIC ACIDS; ENZYMES; POLYAMINES; and specific CELL MEMBRANE PROTEINS and LIPIDS. Biochemical Tumor Marker,Cancer Biomarker,Carcinogen Markers,Markers, Tumor,Metabolite Markers, Neoplasm,Tumor Biomarker,Tumor Marker,Tumor Markers, Biochemical,Tumor Markers, Biological,Biochemical Tumor Markers,Biological Tumor Marker,Biological Tumor Markers,Biomarkers, Cancer,Marker, Biochemical Tumor,Marker, Biologic Tumor,Marker, Biological Tumor,Marker, Neoplasm Metabolite,Marker, Tumor Metabolite,Markers, Biochemical Tumor,Markers, Biological Tumor,Markers, Neoplasm Metabolite,Markers, Tumor Metabolite,Metabolite Markers, Tumor,Neoplasm Metabolite Markers,Tumor Markers, Biologic,Tumor Metabolite Marker,Biologic Tumor Marker,Biologic Tumor Markers,Biomarker, Cancer,Biomarker, Tumor,Cancer Biomarkers,Marker, Tumor,Markers, Biologic Tumor,Markers, Carcinogen,Metabolite Marker, Neoplasm,Metabolite Marker, Tumor,Neoplasm Metabolite Marker,Tumor Biomarkers,Tumor Marker, Biochemical,Tumor Marker, Biologic,Tumor Marker, Biological,Tumor Markers,Tumor Metabolite Markers
D015153 Blotting, Western Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes. Immunoblotting, Western,Western Blotting,Western Immunoblotting,Blot, Western,Immunoblot, Western,Western Blot,Western Immunoblot,Blots, Western,Blottings, Western,Immunoblots, Western,Immunoblottings, Western,Western Blots,Western Blottings,Western Immunoblots,Western Immunoblottings
D046152 Gastrointestinal Stromal Tumors All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA). Gastrointestinal Stromal Neoplasm,Gastrointestinal Stromal Neoplasms,Gastrointestinal Stromal Sarcoma,Gastrointestinal Stromal Tumor,Neoplasm, Gastrointestinal Stromal,Neoplasms, Gastrointestinal Stromal,Stromal Neoplasm, Gastrointestinal,Stromal Neoplasms, Gastrointestinal,Stromal Tumor, Gastrointestinal,Stromal Tumors, Gastrointestinal,Tumor, Gastrointestinal Stromal,Tumors, Gastrointestinal Stromal
D024402 Carbonic Anhydrase II A cytosolic carbonic anhydrase isoenzyme found widely distributed in cells of almost all tissues. Deficiencies of carbonic anhydrase II produce a syndrome characterized by OSTEOPETROSIS, renal tubular acidosis (ACIDOSIS, RENAL TUBULAR) and cerebral calcification. EC 4.2.1.- Carbonic Anhydrase C,Carbonic Anhydrase Isoenzyme C

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