نتایج جستجو برای: radioresistant

تعداد نتایج: 1156  

2013
Hyool Kim Tae-Young Jung In-Young Kim Shin Jung Kyung-Sub Moon Seung-Jin Park

OBJECTIVE We investigated the effectiveness of stereotactic gamma knife Radiosurgery (GKR) for radioresistant brain metastases with the impact upon histology. METHODS Between April 2004 and May 2011, a total of 23 patients underwent GKR for 67 metastatic brain tumors from 12 renal cell cancers, 5 sarcomas and 6 melanomas. The mean age was 56 years (range, 18 to 79 years). Most of the patients...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1993
J S Markowitz H Auchincloss M J Grusby L H Glimcher

Generation of immunocompetent alpha/beta T-cell receptor-positive T cells from CD4+CD8+ thymocytes depends upon their interaction with thymic major histocompatibility complex (MHC) molecules. This process of positive selection provides mature T cells that can recognize antigens in the context of self-MHC proteins. Previous studies investigating haplotype restriction in thymic and bone-marrow ch...

Journal: :Blood 2012
Jifeng Zhang Brice E Barefoot Wenjian Mo Divino Deoliveira Jessica Son Xiuyu Cui Elizabeth Ramsburg Benny J Chen

A major challenge in allogeneic hematopoietic cell transplantation is how to transfer T-cell immunity without causing graft-versus-host disease (GVHD). Effector memory T cells (CD62L(-)) are a cell subset that can potentially address this challenge because they do not induce GVHD. Here, we investigated how CD62L(-) T cells contributed to phenotypic and functional T-cell reconstitution after tra...

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