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131.
Shao-Wen Hung Ching-Feng Chiu Tai-An Chen Chiao-Li Chu Chi-Chang Huang Lie-Fen Shyur Chi-Ming Liang Shu-Mei Liang 《Breast cancer research and treatment》2012,136(1):89-105
Breast cancer is one of the most common cancers in women worldwide and metastasis is the major cause of breast cancer death. Development of new therapeutic agents for inhibiting breast cancer metastasis is therefore an urgent need. We previously demonstrated that recombinant DNA-derived viral capsid protein VP1 (rVP1) of foot-and-mouth disease virus-induced apoptosis of MCF-7 breast cancer cells in vitro. Here, we investigated whether rVP1 exhibits any inhibitory effects on migration/metastasis and human epidermal growth factor receptor 2 (HER-2), a well-known biomarker for poor prognosis of breast cancer. The effects of rVP1 on cancer cell migration/invasion and metastasis were evaluated using Transwell migration assay and animal cancer models of metastasis. Western blotting, RT-PCR, flow cytometry, immunohistochemistry, and immunofluorescence staining techniques were used to investigate the effects of rVP1 on HER-2 and signal transduction mediators. Non-cytotoxic concentrations of rVP1-induced mesenchymal-epithelial transition and significantly suppressed AP-2?? and HER-2 expression as well as the migration and invasion of a variety of breast cancer cell lines in a ??1-integrin-dependent manner in vitro. Gross and histopathologic examinations showed that rVP1 also suppressed metastasis of several breast cancer cell lines, including HER-2-overexpressing SK-BR-3 and BT-474 cells to lung, liver, or peripheral lymph node in orthotopic allograft/xenograft murine models. In addition, rVP1 significantly prolonged survival in breast cancer-bearing mice. Notably, no apparent side effects of rVP1 were detected, as shown by normal complete blood count levels and serum biochemistry profiles, including AST, ALT, BUN, and creatine. This study demonstrates that rVP1 suppresses the migration, invasion, and metastasis of breast cancer cells via binding to ??1 integrin receptor and down-regulation of AP-2?? and HER-2 expression. The effectiveness of rVP1 on inhibiting migration/metastasis of breast cancer and HER-2 expression suggests that it may be suitable for serving as potential therapeutics for metastatic breast cancer particularly HER-2-overexpressing cancer. 相似文献
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Erythema elevatum diutinum (EED) is a rare chronic form of leukocytoclastic vasculitis with unknown etiology. EED has been
described in association with hematological malignancies, infections and a number of rheumatological diseases. We report a
patient with systemic lupus erythematosus (SLE) who presented with intermittent attacks of tender nodules and plaques on the
shins and ankles for 6 months. Skin biopsy confirmed the diagnosis of EED. Treatment with dapsone resulted in complete resolution
of the skin lesions. EED is rarely reported in SLE, and its presentation and treatment is reviewed. 相似文献
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Shannon Melissa Chan Philip W.Y. Chiu Anthony W.H. Chan Anthony Y.B. Teoh Simon K.H. Wong Enders K.W. Ng 《Surgical Practice》2013,17(1):28-30
Gastric mucosa‐associated lymphoid tissue lymphoma (or MALToma) is a relatively rare form of low‐grade B‐cell malignancy arising from the mucosal associated lymphoid tissue of the stomach. The majority of cases can be treated with Helicobacter pylori eradication with good prognosis. However, few reports have been published on the treatment of gastric MALToma with pulmonary metastasis. We report two such cases managed with systemic chemotherapy. At the time of writing, one of the cases was in static disease while the other had complete remission. In both patients, pulmonary metastases were detected upon staging thoracic computed tomography. 相似文献