2005
DOI: 10.1002/ijc.21163
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Total loss of MHC class I is an independent indicator of good prognosis in breast cancer

Abstract: Tumours can be recognised by CTL and NK cells. CTL recognition depends on expression of MHC Class I loaded with peptides from tumour antigens. In contrast, loss of MHC Class I results in NK activation. In our study a large set of samples from patients with primary operable invasive breast cancer was evaluated for the expression of MHC Class I heavy and light by immunohistochemical staining of 439 breast carcinomas in a tissue microarray.

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Cited by 132 publications
(119 citation statements)
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“…The loss of surface antigens, such as major histocompatibility (MHC) class I, is an independent indicator of good prognosis in breast cancer. 106 It has also been well-documented that cancer patients' sera contain an impressive variety of immunosuppressive proteins, indicating that many immunosuppressive substances may be secreted from either tumor or host cells.107 These substances, secreted in the tumor microenvironment, can be defined as part of the tumor secretome. Results from our current proteomics analysis provide a molecular explanation for the properties of ECM in breast cancer cells.…”
Section: Discussionmentioning
confidence: 99%
“…The loss of surface antigens, such as major histocompatibility (MHC) class I, is an independent indicator of good prognosis in breast cancer. 106 It has also been well-documented that cancer patients' sera contain an impressive variety of immunosuppressive proteins, indicating that many immunosuppressive substances may be secreted from either tumor or host cells.107 These substances, secreted in the tumor microenvironment, can be defined as part of the tumor secretome. Results from our current proteomics analysis provide a molecular explanation for the properties of ECM in breast cancer cells.…”
Section: Discussionmentioning
confidence: 99%
“…Basically, normal cells express MHC class I molecules, whereas aberrant cells such as cancer cells extinguish the expression of MHC class I molecules on themselves [55] . This phenomenon was especially observed in pancreatic [56] , cervical [57] , breast [58] , prostatic [59] , and penile cancer PBMCs from each time point were extracted and co-cultured with monoclonal antibodies against CD3 and CD28 to measure IFN-g and IL-2 production levels in each supernatant. Results are shown as fold over the control (Pre) for the average of five separate donors, and expressed as mean ± SEM.…”
Section: Hyperthermia Enhances Immune Systems In Response To Cancermentioning
confidence: 98%
“…By contrast, other reports have revealed that MHC class I loss may improve patients' survival through activating natural killer (NK) cell function (7,8). These results vary between different types of tumors and the occurrence of lymph node metastasis (5,7).…”
Section: Introductionmentioning
confidence: 96%
“…Certain studies have reported that MHC class I loss has poor outcomes due to its impact on antigen presentation to T-lymphocytes and CTLs (5,6). By contrast, other reports have revealed that MHC class I loss may improve patients' survival through activating natural killer (NK) cell function (7,8). These results vary between different types of tumors and the occurrence of lymph node metastasis (5,7).…”
Section: Introductionmentioning
confidence: 99%