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MatBA - Mature B-cell neoplasm array - Biotech, Pharma and Life Science Channel

02:23 EDT 28th April 2017 | BioPortfolio

Mature B-cell neoplasms arise in B-cells that have entered germinal centers within lymph nodes as part of the immune response. They display great heterogeneity at the clinical, pathologic, and genetic levels and represent 6-7% and 5-6% of all new estimated cancer cases and deaths respectively in the US in 2009. They are the fifth most common neoplasm in both males and females, and of the 103,960 estimated new cases in 2009, 20,860 comprise diffuse large B-cell lymphoma (DLBCL), 20,580 multiple myeloma (MM), 15,490 chronic lymphocytic leukemia /small lymphocytic lymphoma (CLL/SLL), 14,900 follicular lymphoma (FL), 8,510 Hodgkin’s lymphoma (HL), 6,000 marginal zone lymphomas (MZL) (including the three subtypes: extranodal marginal zone of mucosa-associated lymphoid tissue [MALT], nodal marginal zone, and splenic marginal zone), and 3,730 mantle cell lymphomas (MCL), as the major subtypes. With the exclusion of HL, 32,520 deaths are expected in 2009 in the US as a result of these neoplasms.

Diagnosis of these neoplasms relies mostly on the pathologic examination of biopsy material, be it either of an incisional or excisional biopsy of a suspect lymph node, a fine needle aspirate of a suspect lymph node (as yet to be considered adequate for initial diagnosis, unless it is the only safe option), or a bone marrow aspirate. Unlike other cancers, rarely are other biopsy/surgical procedures performed prior to the initiation of treatment, thus limiting the amount of tissue available for diagnostic and prognostic purposes. CGI has optimized the utility of array CGH so that it can be routinely applied to the study of a range of specimen types including formalin-fixed paraffin-embedded (FFPE) specimens, often the only specimen available for analysis.

Source: http://cancergenetics.com/cgi-research/cgh-microarray/ UMatBA is a Registered Trademark of CGI

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Medical and Biotech [MESH] Definitions

Glycoproteins expressed on all mature T-cells, thymocytes, and a subset of mature B-cells. Antibodies specific for CD5 can enhance T-cell receptor-mediated T-cell activation. The B-cell-specific molecule CD72 is a natural ligand for CD5. (From Abbas et al., Cellular and Molecular Immunology, 2d ed, p156)

Abnormal growths of tissue that follow a previous neoplasm but are not metastases of the latter. The second neoplasm may have the same or different histological type and can occur in the same or different organs as the previous neoplasm but in all cases arises from an independent oncogenic event. The development of the second neoplasm may or may not be related to the treatment for the previous neoplasm since genetic risk or predisposing factors may actually be the cause.

A focal malformation resembling a neoplasm, composed of an overgrowth of mature cells and tissues that normally occur in the affected area.

Resistance or diminished response of a neoplasm to an antineoplastic agent in humans, animals, or cell or tissue cultures.

Mapping of the full chromosome set of the nucleus of a cell. The chromosome characteristics of an individual or a cell line are usually presented as a systematized array of metaphase chromosomes from a photomicrograph of a single cell nucleus arranged in pairs in descending order of size and according to the position of the centromere. (From Stedman, 25th ed)

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