giant cell tumor of bone/phosphatase

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Tartrate-Resistant Acid Phosphatase 5b is a Useful Serum Marker for Diagnosis and Recurrence Detection of Giant Cell Tumor of Bone.

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Serum tartrate-resistant acid phosphatase (TRACP) 5b was investigated for use as a marker for diagnosis of giant cell tumor (GCT) of bone and for detection of its recurrence.Four patients with GCT of bone who were initially referred to our hospital were classified as a primary group. Three patients

Early evaluation of the therapeutic effect of denosumab on tartrate-resistant acid phosphatase 5b expression in a giant cell tumor of bone: a case report.

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BACKGROUND Giant cell tumor of bone is an osteolytic, usually benign, tumor characterized by the infiltration of osteoclast-like giant cells. The receptor activator of nuclear factor kappa-B ligand pathway has been shown to play a key role in the pathogenesis of giant cell tumor. Treatment for

Purification and characterization of a tartrate-resistant acid phosphatase from human osteoclastomas.

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Tartrate-resistant acid phosphatase is one of the major enzymes produced and secreted by osteoclasts. To obtain sufficient enzyme for biochemical characterization, we have purified this enzyme from human osteoclastomas by sequential chromatography on SP-Sephadex, CM-Sephadex, hydroxylapatite,

Purification and N-terminal amino acid sequence of the tartrate-resistant acid phosphatase from human osteoclastoma: evidence for a single structure.

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Tartrate-resistant acid phosphatase type-5 was purified to apparent homogeneity from human osteoclastomas by sequential chromatography on CM-Sepharose, Phenyl-Sepharose, concanavalin A-Sepharose, FPLC Superose-12, and FPLC Mono-S. The purification over the original tissue extract was 1167-fold, with

Giant cell tumor of bone: fine structural localization of acid phosphatase.

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The fine structural localization of acid phosphatase in the different cells in a benign giant cell tumor of bone has been studied. Stromal cells type 1 and 2 (fibroblast-like and macrophage-like, respectively) showed the presence of lead phosphate precipitate following incubation in a Gomori-type

Giant cell tumor of bone. Fine structural localization of alkaline phosphatase.

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The fine structural localization of nonspecific alkaline phosphatase was elucidated in two giant cell tumors of bone using lead as capturing ion and beta-glycerophosphate as substrate in the incubation solution. Lead phosphate precipitate--indicating presence of alkaline phosphatase--was

The ultrastructural localization of secretory acid phosphatase in giant cell tumor of bone.

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Three cases of giant cell tumor of bone were studied with the light and electron microscopes to determine the histochemical and cytochemical distribution of acid phosphatase isoenzymes. Using beta-glycerophosphate as a nonspecific substrate, acid phosphatase was found in the giant cells as well as

Malignant giant cell tumor of bone. Fine structure and localization of acid phosphatase.

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The fine structure of the different cell types constituting a primary malignant giant cell tumor of bone has been studied and the localization of acid phosphatase in relation to the subcellular organelles been demonstrated. Three distinct cell types with characteristic ultrastructural features were

Tartrate-resistant acid phosphatase from human osteoclastomas is translated as a single polypeptide.

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Tartrate-resistant acid phosphatases have been isolated from a number of sources. These enzymes consist of one subunit (Mr 30,000-40,000) or two dissimilar subunits (Mr 15,000-20,000). Previously we isolated the enzyme from human osteoclastomas, as a two-subunit protein. By Northern blotting and

Evidence that tartrate-resistant acid phosphatases from osteoclastomas and hairy cell leukemia spleen are members of a multigene family.

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1. Osteoclasts and hairy cell leukemia spleen both contain large amounts of a band 5-tartrate-resistant acid phosphatase (TrACP). 2. We have recently purified to homogeneity a band 5 TrACP from human osteoclastomas and two isoforms of band 5 TrACP (5a and 5b) from the spleen of a patient with hairy

Serum total acid phosphatase for monitoring the clinical course of giant cell tumors of bone--26 patients with 5 local recurrences.

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BACKGROUND Giant cell tumor of bone (GCT) is a bone-destroying tumor that sometimes recurs locally after treatment. A recent study showed increased levels of serum total acid phosphatase (TACP). METHODS We assessed TACP in the serum of 26 patients with primary GCT, and in 5 of them who developed a

Localization of acid phosphatase activity in a giant cell tumor of bone.

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Serum Levels of NTx and TRACP5b in Giant Cell Tumor of Bone and its Clinical Implications.

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BACKGROUND To investigate the serum levels of N-terminal telopeptide of type I collagen (NTx) and tartrate-resistant acid phosphatase 5b (TRACP5b) in giant cell tumor of bone (GCT) patients and the clinical implications. METHODS 56 GCT patients (29 males and 27 females, 15 to 60 years old with a

Monocyte-macrophage lineage of giant cell tumor of bone. Establishment of a multinucleated cell line.

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METHODS A new neoplastic cell line, UISO-GCT-1, was established from a giant cell tumor of the right tibia in an 18-year-old man. Immunohistochemical, cytogenetic, ultrastructural, and growth studies were performed. RESULTS Multinucleated giant cells (> 4-6 nuclei/cell) persisted in a culture

Osteoclast origin of giant cells in giant cell tumors of bone: ultrastructural and cytochemical study of six cases.

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To clarify the histogenesis of giant cells appearing in giant cell tumors of bone (GCTB), an ultrastructural and cytochemical study of six cases was performed with both acid phosphatase (ACPase) and tartrate-resistant acid phosphatase (TRACPase) as marker enzymes. TRACPase is considered a specific

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