Abstract:
:Congenital-infantile fibrosarcoma (CIFS) is a relatively indolent sarcoma that should be distinguished from more aggressive spindle cell sarcomas of childhood. CIFSs have been found to have a novel recurrent reciprocal translocation t(12;15)(p13;q25) resulting in the gene fusion ETV6-NTRK3 (ETS variant gene 6; neurotrophic tyrosine kinase receptor type 3). We studied immunohistochemical expression of NTRK3, and conducted a reverse transcription-polymerase chain reaction (RT-PCR) assay to detect the ETV6-NTRK3 fusion transcripts using archival formalin-fixed paraffin-embedded tissues from 10 CIFSs. Thirty-eight other spindle cell tumors were included as controls. The ETV6-NTRK3 fusion transcripts were identified in 7 (70%) of 10 CIFSs. Nucleotide sequence analysis showed that the fusion occurred between ETV6 exon 5 and NTRK3 exon 13. The 38 control tumors were negative for the fusion transcript. Immunohistochemically, CIFSs consistently expressed NTRK3. But the expression of NTRK3 also was observed in 22 of 38 control tumors. These results show the diagnostic usefulness of RT-PCR methods to detect ETV6-NTRK3 fusion transcripts in archival formalin-fixed paraffin-embedded tissue and the important role of NTRK3 in the development of CIFS, despite its being a protein of little importance in differential diagnosis.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Sheng WQ,Hisaoka M,Okamoto S,Tanaka A,Meis-Kindblom JM,Kindblom LG,Ishida T,Nojima T,Hashimoto Hdoi
10.1309/3H24-E7T7-V37G-AKKQsubject
Has Abstractpub_date
2001-03-01 00:00:00pages
348-55issue
3eissn
0002-9173issn
1943-7722journal_volume
115pub_type
杂志文章abstract:OBJECTIVES:To describe the histopathologic and immunophenotypic features of a temporary splenic allograft exposed to massive donor-specific antibody (DSA) insult. METHODS:A human cadaveric donor splenic allograft was temporarily transplanted in a highly sensitized patient with the intention of removing DSA before inte...
journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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abstract::Fixed lymphoma tissues from 11 patients seropositive for human T-cell leukemia virus type I (HTLV-I) antibodies were analyzed for proviral sequences by the polymerase chain reaction. Typical adult T-cell leukemia/lymphomas (ATLLs) from nine patients were positive for HTLV-I sequences. In contrast, one of two lymphomas...
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abstract::This report concerns a particular benign histologic variant of Hodgkin's disease, the lymphocyte-predominant category of the Rye classification. The group of 24 cases, all involving localized disease, was first reported in 1960, and is now reappraised, incorporating subsequent data. The interpretations of the original...
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journal_title:American journal of clinical pathology
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更新日期:1987-10-01 00:00:00
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journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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更新日期:1990-04-01 00:00:00
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journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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更新日期:1989-07-01 00:00:00
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journal_title:American journal of clinical pathology
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journal_title:American journal of clinical pathology
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更新日期:2012-12-01 00:00:00
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journal_title:American journal of clinical pathology
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abstract::Platelet-derived growth factors (PDGFs) exert their biologic function by binding to 3 different tyrosine kinase receptor isoforms. Especially the PDGF-alpha alpha receptor binds PDGF proteins with high specificity, which results in growth stimulation. The expression of the receptor and its ligand was studied in human ...
journal_title:American journal of clinical pathology
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abstract::The diagnostic value of glypican 3 (GPC3) immunostaining on needle biopsy specimens has not been well assessed. In this study, 120 liver needle biopsy specimens, including 46 from cirrhotic livers and 74 hepatocellular carcinomas (HCCs), were immunohistochemically examined for expression of GPC3. The results showed st...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
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更新日期:2008-08-01 00:00:00
abstract:Objectives:To evaluate the prevalence of potentially unnecessary repeat testing (PURT) and the associated economic burden for an inpatient population at a large academic medical facility. Methods:We evaluated all inpatient test orders during 2016 for PURT by comparing the intertest times to published recommendations. ...
journal_title:American journal of clinical pathology
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更新日期:2018-05-31 00:00:00