966 Results for: "Diagnostic Biosystems"

Supplier: Diagnostic Biosystems

This antibody reacts with a 100 kDa glycoprotein expressed by endothelial cells and 130 kDa glycoprotein present in platelets. It stains endothelial cells in normal as well as malignant tissues.

Supplier: Diagnostic Biosystems

DOG1 is expressed ubiquitously in gastrointestinal stromal tumors irrespective of c-kit or PDGFR alpha mutation status. Reactivity for DOG1 may aid in the diagnosis of gastrointestinal stromal tumors, including PDGFRA mutants that fail to express c-kit antigen, and lead to appropriate treatment with imatinib mesylate, an inhibitor of the c-kit tyrosine kinase.

Supplier: Diagnostic Biosystems

This antibody is specific to a cell surface glycoprotein of 80 to 95 kDa, known as CD44. CD44 is expressed on the surface of lymphocytes, monocytes and granulocytes. This antibody reacts with red cells pretreated with 2-aminoethlyl isothiouronium bromide (AET).

Supplier: Diagnostic Biosystems

Monoclonal anti-smooth muscle myosin reacts with myosin heavy chain polypeptides of 200 and 204 kDa. It does not react with skeletal, cardiac, or non-muscle myosin. In immunohistochemistry it stains vascular and visceral smooth muscle cells and cells that have smooth muscle-like characteristics.

Supplier: Diagnostic Biosystems

This antibody is specific to α-smooth muscle isoform of actin. It reacts with smooth muscle cells of vessels and different parenchymes. This antibody does not cross-react with β and γ-cytoplasmic, α-sarcomeric and α-myocardial actin isoforms.

Supplier: Diagnostic Biosystems

Epithelial antigen is a cell surface glycoprotein and is broadly distributed in epithelial cells and displays a highly conserved expression in carcinomas. Epithelial antigen has been shown to play an important role as a tumor cell marker in lymph nodes from patients with esophageal carcinoma. Epithelial antigen can be used to distinguish between basal cell and basosquamous carcinomas and squamous cell carcinoma of the skin.

Supplier: Diagnostic Biosystems

Myeloperoxidase metabolizes most of the hydrogen peroxide generated by activated phagocytes. This antibody stains strongly with the cytoplasm of myeloid cells. The antibody detects myeloperoxidase found in myeloid cells of acute myeloid leukemia. The myeloperoxidase gene has been localized to chromosome 17.

Supplier: Diagnostic Biosystems

This antibody reacts with an antigen expressed by normal and neoplastic T cells and myeloid lineage cells. It strongly stains T cells in the interfollicular areas of normal lymphoid tissues.

Supplier: Diagnostic Biosystems

This antibody reacts with the heavy chain present in all types of human IgM. It stains B cell follicles in human lymphoid tissues. In lymphoid tissues, IgM containing plasma cells stain strongly but immune complexes are usually undetectable.

Supplier: Diagnostic Biosystems

This antibody reacts with the zymogen as well as the activated form of cathepsin D. It stains fibroblasts and macrophages strongly but stains weakly with the myoepithelial cells of breast. It stains the sweat ducts and glands in the skin, islets cells and granules of pancreatic acini.

Supplier: Diagnostic Biosystems

This antibody reacts with chains of human IgG. Nonspecific antibodies have been removed by solid-phase adsorption.

Supplier: Diagnostic Biosystems

p63 is a homolog of the tumor suppressor p53, it is identified in basal cells in the epithelial layers of a variety of tissues, including epidermis, cervix, urothelium, breast and prostate. p63, vital for the development of the prostate and selectively expressed by normal prostate basal cells, has been shown to be a promising complementary basal cell specific marker to High Molecular Weight-Cytokeratin (HMW-CK), for the differential diagnosis of benign prostatic lesions and prostatic carcinoma. p63 has also been shown to be a sensitive marker for lung squamous cell carcinomas (SqCC), with a sensitivity of ~90% . Specificity for lung SqCC, vs. lung adenocarcinoma (LADC), is approximately 80. In breast tissue, p63 has been identified in myoepithelial cells of normal ducts.

Supplier: Diagnostic Biosystems

This antibody reacts with a 95 to 100 kDa protein. This antibody recognizes amyloid precursor proteins APP695, APP751 and APP770. Amyloid precursor protein and APP-like proteins are transmembrane glycoproteins with a similar modular domain structure.

Supplier: Diagnostic Biosystems

ROS1 rearrangements occur infrequently in lung ACA, however given the frequency of lung cancer in the population, ROS1-rearranged tumors represent a significant number of cancer patients. ROS1 gene rearrangements are reported in 1 to 2% of lung adenocarcinomas (ACA) and are associated with response to the multitargeted tyrosine kinase inhibitor, crizotinib. ROS IHC can be readily incorporated into the diagnostic surgical pathology workup of lung adenocarcinoma, with results confirmed by FISH as needed.

Supplier: Diagnostic Biosystems

This antibody reacts with herpes simplex virus type 2. It is specific for the viral glycoprotein D (gD) protein.

Supplier: Diagnostic Biosystems

This antibody reacts with the whole H. pylori. The antibody stains the bacteria present on the surface of the epithelium or in the cytoplasm of the epithelial cells. H. pylori is known to cause peptic ulcer and chronic gastritis in humans.

Supplier: Diagnostic Biosystems

Galectin-3 is a member of the beta-galactoside-binding protein family that plays an important role in cell adhesion, cell matrix interactions, macrophage activation, angiogenesis, metastasis, and apoptosis.

Galectin-3 shows strong diffuse cytoplasmic staining in most cases of papillary thyroid carcinoma (PTC), most poorly differentiated thyroid cancers demonstrate galectin-3 protein expression while it is not expressed in anaplastic thyroid cancers. (1) Upregulated expression of galectin-3 is involved in cancer progression and metastasis, and it is suggested that Galectin-3 may be a valuable tool to support diagnosis of parathyroid carcinoma. (2)

Galectin-3 has also been reported to play important roles in the progression of prostate cancer, and their heterogeneous expressions might be associated with different cancer subtypes. (3)

Supplier: Diagnostic Biosystems

The mammaglobin gene was first identified using a differential screening approach directed at the isolation of novel, human breast cancer-associated genes. Mammaglobin-A is highly overexpressed in breast cancer cell lines and primary breast tumors. This pattern of expression is restricted to mammary epithelium and metastatic breast tumors. Thus, mammaglobin-A-specific T cell immune responses may provide an important approach for the design of breast cancer-specific immunotherapy.

Supplier: Diagnostic Biosystems

This antibody is specific to a 38 kDa protein. Synaptophysin is an glycoprotein occurring in presynaptic vesicles of neurons in the brain, spinal cord, retina, vesicles of adrenal medulla and in neuromuscular junctions. This antibody reacts with neuroendocrine neoplasms of neural as well as epithelial types.

Supplier: Diagnostic Biosystems

PRAME (Preferentially expressed Antigen in Melanoma) is a tumorassociated antigen and is a member of the family of cancer testis antigens (CTA). PRAME is expressed in malignant cells, including leukaemias, Hodgkin's lymphoma, breast cancer, and primary and metastatic melanomas. PRAME has low or no expression in normal tissues except for in testis, ovary, placenta, adrenals and endometrium.

Supplier: Diagnostic Biosystems

This antibody is specific to 160 kDa protein known as Factor XIII-A. Factor XIII is a β-globulin found in plasma and is composed of two subunits, Factor XIII-A and Factor XIII-B. Factor XIII-A is the catalytic subunit and is a dimer of M.W. 160 kDa. Factor XIII is a dermal dendrocyte marker and v variable reaction with these types of tumors.

Supplier: Diagnostic Biosystems

This antibody reacts with cytokeratin 5 intermediate filament protein. Basal cells of human epidermis express acidic cytokeratin 14 and basic cytokeratin 5. Cytokeratin 5 is a 58 kDa protein, which is closely related to cytokeratin 6. Cytokeratin 5 and 6 are expressed in basal cell epithelioma, basal cells of prostate, urothelium, vagina, squamous cell carcinomas of skin, tongue, epiglottis and rectal-anal region. Cytokeratin 5 can be useful in the distinction of mesotheliomas from most adenocarcinomas.

Supplier: Diagnostic Biosystems

Caspase 1 and is expressed as a proenzyme in many tissues. Active Caspase 1 is a tetramer of two subunits p10 and p20 in 2:2 ratio. Overexpression of caspase 1 can induce apoptosis in fibroblast, which can be inhibited by overexpression of Crm A, a protein from pox virus.

Supplier: Diagnostic Biosystems

This antibody is specific to 50 kDa cytokeratin protein designated cytokeratin 14. Cytokeratin 14 belongs to the type A (acidic) subfamily of low molecular weight cytokeratins and exists in combination with cytokeratin 15. This antibody can be used to distinguish stratified epithelial cells from simple epithelial cells.

Supplier: Diagnostic Biosystems

Primary antibody diluent is specifically designed for diluting primary antibodies for immunohistochemistry. Monoclonal and polyclonal antibodies can be diluted in this buffer.

Supplier: Diagnostic Biosystems

The HMB45 clone reacts with a neuraminidase-sensitive oligosaccharide side chain of a glycoconjugate present in immature melanosomes. The HMB45-reactive antigen is present in cutaneous melanocytes, prenatal and infantile retinal pigment epithelium and melanoma cells and is thought to be oncofetal in nature. This antibody has been shown to label the majority of melanomas. Clone A103 recognizes a protein of 20 kDa, identified as MART-1 (melanoma antigen recognized by T cells-1) or Melan-A. Melan-A is a useful addition to melanoma panels as it is apparently specific for melanocytic lesions. Studies have also shown that MART-1 is more sensitive than HMB45 when labeling metastatic melanomas. Tyrosinase is a key enzyme involved in the initial stages of melanin biosynthesis. Studies have shown tyrosinase to be a more sensitive marker when compared to HMB45 and MART-1. It has been shown to label a higher percentage of desmoplastic melanomas than HMB45. The combination of HMB45, MART-1 and tyrosinase make this triple antibody cocktail a first-order pan melanoma screener.

Supplier: Diagnostic Biosystems

This antibody is specific to a 55 kDa protein known as platelet-derived endothelial growth factor (PD-ECGF), or thymidine phosphorylase (TP). High levels of TP/PD-ECGF are observed in cancer patients. High intracellular levels of TP/PD-ECGF are associated with increased sensitivity to fluoropyrimidine chemotherapeutic agents.

Supplier: Diagnostic Biosystems

This antibody reacts with a 33-36 kDa protein known as ERCC1 (excision repair cross complementing) polypeptide. ERCC1 is required for nucleotide excision repair of damaged DNA and is homologous to RAD10. In mammalian cells, XPG cleaves 3’ of the DNA lesion while ERCC1-XPF complex makes the 5’ incision.

Supplier: Diagnostic Biosystems

This antibody is specific to β sialoglycophorin also known as glycophorin C. Glycophorin C is found on the human erythrocyte membrane and is one of four sialic acid-rich polypeptides.

Supplier: Diagnostic Biosystems

The Combined Eosinophil-Mast Cell Stain Kit is intended for simultaneous visualization of eosinophils and mast cells.