نتایج جستجو برای: merkel cell carcinoma
تعداد نتایج: 1881734 فیلتر نتایج به سال:
Merkel cell carcinoma (MCC) is an aggressive uncommon neuroendocrine tumour of the skin, probably originating from Merkel cells, and described by Toker in 1972 as Trabecular carcinoma [1]. Subsequently, electron dense neurosecretory granules were demonstrated in the tumour cells and it was classified as definite neu-roendocrine tumour. Merkel cell carcinoma is character-ised by a high incidence...
Metastatic Merkel cell carcinoma (MCC) is a lethal, Merkel cell polyomavirus (MCPyV) cancer with no currently available effective therapy. Harnessing the immune system through an immune checkpoint blockade is an attractive option because the immune system appears to be dysfunctional in the Merkel cell tumor microenvironment. Although MCPyV is expressed in 80% of MCCs and serves as a powerful an...
Purpose Merkel cell carcinoma (MCC) is a highly aggressive skin cancer with strong evidence for viral carcinogenesis. The association of MCC with the Merkel cell polyomavirus (MCPyV) may explain the explicit immunogenicity of MCC. Indeed, MCPyV-encoded proteins are likely targets for cytotoxic immune responses to MCC as they are both foreign to the host and necessary to maintain the oncogenic p...
AIM We sought to clarify whether the expression of toll-like receptors (TLR) in Merkel cell carcinoma (MCC) is linked to tumor and patient characteristics, especially the presence of Merkel cell polyoma virus (MCV). MATERIALS AND METHODS The study comprised of 128 patients with data on Merkel cell polyomavirus (MCV) status and clinical features were included in the study. Immunohistochemistry...
Merkel Cell Polyomavirus-Infected Merkel Cell Carcinoma Cells Require Expression of Viral T Antigens
A 61-year-old woman presented with solitary lymphadenopathy suspicious for lymphoma. An excisional biopsy of a right inguinal lymph node demonstrated metastatic Merkel cell carcinoma (MCC). No skin lesions were detected, but a primary nasopharyngeal mass was identified. A microscopic examination of the nasopharyngeal tumor and the lymph node metastasis showed a monotonous population of small- t...
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