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BACKGROUND
To investigate the expression and clinical significance of protein tyrosine phosphatase nonreceptor 22 (PTPN22) in thymoma, as well as the relationship between thymoma and myasthenia gravis (MG).
METHODS
The expression of PTPN22 in normal thymus (35 cases), thymoma without MG (50 cases),
A new human cell line, designated Ty-82, was established from the pleural effusion of a 22-year-old woman with undifferentiated thymic carcinoma. This cell line consisted of primitive cells that were positive for alpha-naphthyl butyrate esterase and acid phosphatase. The cells were shown to express
The present studies were undertaken to determine whether the multikinase inhibitors sorafenib/regorafenib cooperated with clinically relevant , phosphatidyl inositol 3 kinase (PI3K)-thymoma viral proto-oncogene (AKT) inhibitors to kill tumor cells. In liver, colorectal, lung, breast, kidney, and
Phorbol esters, acting via activation of the protein kinase C family of protein serine/threonine kinases, are able to exert profound effects on various cellular functions. In this study, we used the EL4 thymoma cell line to study the potential role of "downstream" protein serine/threonine kinases in
Thymic carcinoma (TCA) is a thymic epithelial neoplasm with obvious cytologic atypia. We studied 13 cases of TCA by light microscopy, immunohistochemistry, and electron microscopy and correlated the findings with clinical features. The patients' mean age was 54.2 years (range 30-74); the male/female
A case of a 36-year-old male patient with mediastinal seminoma is presented. He consulted a physician with a complaint of back pain and an abnormal shadow was detected on chest X-ray. Chest computed tomography (CT) scan revealed a pulmonary nodule and an anteriormediastinal mass. Preoperative
We have examined the regulation of the AP-1 transcription complex in the IL-1-responsive murine T cell thymoma cell line EL-4 6.1 C10. Our results demonstrate that AP-1-mediated gene expression in T cells may be regulated by several signaling pathways and factors, including IL-1, protein kinase C,
Autoimmune cholangitis is characterized biochemically by chronic cholestasis and histopathologically by chronic non-suppurative destructive cholangitis. It is associated with positive antinuclear antibody test and negative antimitochondrial antibody test results. Recently, we experienced a case of a
We describe the clinicopathologic findings in a so far unrecognized thymic tumor. The tumor occurred in a 70-year-old woman with respiratory distress but neither myasthenia gravis nor other symptoms. Metastases or another primary tumor were absent. The well-circumscribed neoplasm was located in the
We characterized properties of Na+/K+ ATPase and alkaline phosphatase in thymocytes or thymoblasts from mice of two strains: AKR, in which thymoma developed spontaneously and C57Bl, in which the development was induced by X-irradiation (total dose: 5.4 Gy in 3 fractions). We found that before
OBJECTIVE
Cytopathologic descriptions of thymoma are limited. This study was undertaken to elaborate on the cytomorphologic features along with clinicoradiologic findings of this entity, with special emphasis on the differential diagnosis.
METHODS
Twenty cases of thymoma were retrospectively
Thymic carcinoma arising within a thymolipoma has not been reported previously. The authors present a unique case of thymoma and undifferentiated thymic carcinoma arising within a thymolipoma in a 36-year-old woman. The bulk of the resected mass was composed of benign fatty tissue admixed with foci
We have examined a human thymoma, round-oval epithelial-type cell with moderate lymphocytic infiltration, whose major lymphocytic component (67%), unlike the minor one (33%), did not form rosettes with sheep red blood cells (E rosettes). However, these cells were of T-cell nature as indicated by the
OBJECTIVE
To examine thymomas for proteins encoded by oncogenes and to determine whether their presence correlates with tumour growth and associated myasthenia gravis.
METHODS
Sections of 24 thymomas were incubated with anti-EGF receptor (EGF-R), anti-Ki67 antigen, anti-p53, and anti-bcl-2
A 64-year-old Japanese woman with thymoma has been suffering from diarrhea and increased alkaline phosphatase levels without jaundice. Her serum immunoglobulin levels of IgM and IgG were less than half of the normal levels, with an increase in CD8 (suppressor/cytotoxic) T cell percentage and a