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Open Access Green as soon as Postprint is submitted to ZB.
A Case of Heterogeneous Breast Cancer with Clonally Expanded T-Cells in the HER2+ and Metastasis of the HER2- Tumor Cells.
Breast J. 14, 487-491 (2008)
We report a case of an invasive ductal breast carcinoma with significant heterogeneity: a HER-2+ tumor component was densely infiltrated by T-cells, whereas the HER2- tumor component, including two axillary lymph node metastases, showed much fewer tumor infiltrating lymphocytes. Array comparative genomic hybridization of dissected tumor cells from both components revealed many shared chromosomal aberrations but also unique alterations of the HER2+ tumor cell population besides HER2 amplification. We found a clonally dominated T-cell receptor rearrangement of the tumor infiltrating lymphocytes in the HER2+, but not in the HER2- tumor component. Thus, in this case HER2 overexpression is associated with a marked infiltration by T-cells suggesting a specific T-cell response against the HER2+ tumor cell population.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
array CGH; breast carcinoma; HER2 amplification; T-cell clonality; tumor infiltrating lymphocytes
ISSN (print) / ISBN
1075-122X
e-ISSN
1524-4741
Journal
Breast Journal, The
Quellenangaben
Volume: 14,
Issue: 5,
Pages: 487-491
Publisher
Wiley
Non-patent literature
Publications
Reviewing status
Peer reviewed