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Micronodular thymoma: an epithelial tumour with abnormal chemokine expression setting the stage for lymphoma development
The Journal of pathology, 2005-09, Vol.207 (1), p.72-82
Ströbel, Philipp
Marino, Mirella
Feuchtenberger, Martin
Rouzière, Anne-Sophie
Tony, Hans Peter
Wulbrand, Ulrich
Förster, Reinhold
Zettl, Andreas
Lee Harris, Nancy
Kreipe, Hans
Laeng, R Hubert
Müller-Hermelink, Hans Konrad
Marx, Alexander
2005
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Ströbel, Philipp
Marino, Mirella
Feuchtenberger, Martin
Rouzière, Anne-Sophie
Tony, Hans Peter
Wulbrand, Ulrich
Förster, Reinhold
Zettl, Andreas
Lee Harris, Nancy
Kreipe, Hans
Laeng, R Hubert
Müller-Hermelink, Hans Konrad
Marx, Alexander
Titel
Micronodular thymoma: an epithelial tumour with abnormal chemokine expression setting the stage for lymphoma development
Ist Teil von
The Journal of pathology, 2005-09, Vol.207 (1), p.72-82
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2005
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
The aetiology of primary B‐cell lymphomas of the thymus is enigmatic. Although thymic follicular lymphoid hyperplasia (TFH) is commonly associated with myasthenia gravis (MG), lymphoma is not a complication of this condition. The present paper reports a high frequency of monoclonal B‐cell populations (6 of 18 cases; 33%) in micronodular thymoma (MNT), a peculiar thymic epithelial neoplasm with a B‐cell‐rich stroma, while B cells were consistently polyclonal in TFH (25 cases) and other types of thymomas (15 cases) (p < 0.001). An intratumoural lymphoma could be identified in three of the six monoclonal MNTs. Sequencing of the monoclonal IgH chain revealed partially overlapping VDJ gene usage in MNT and thymic mucosa‐associated lymphoid tissue (MALT) lymphomas. The neoplastic epithelium of MNTs, but not of TFH and other types of thymoma, expressed high levels of dendritic cell, T‐cell, and B‐cell chemoattractants, such as CCL18, CCR6, and CCL20. It is concluded that abnormal chemokine expression in an epithelial tumour, MNT, can promote the recruitment of MALT, the emergence of monoclonal B cells, and, eventually, the subsequent development of mediastinal lymphomas. More generally, the concept that expression of a ‘high‐risk’ spectrum of chemokines due to local or genetic factors may interfere with B‐cell homeostasis and may contribute to MALT lymphoma development in chronic inflammatory states is proposed. Copyright © 2005 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 0022-3417
eISSN: 1096-9896
DOI: 10.1002/path.1808
Titel-ID: cdi_proquest_miscellaneous_68473982
Format
–
Schlagworte
Adult
,
Aged
,
Aged, 80 and over
,
B cell
,
B-Lymphocyte Subsets - immunology
,
Biological and medical sciences
,
chemokine
,
Chemokines - metabolism
,
Dendritic Cells - pathology
,
Epithelial Cells - pathology
,
Female
,
Gene Rearrangement, B-Lymphocyte
,
Humans
,
Hyperplasia - immunology
,
Immunophenotyping
,
In Situ Hybridization, Fluorescence
,
Investigative techniques, diagnostic techniques (general aspects)
,
lymphoma
,
Macrophages - pathology
,
Male
,
MALT
,
mediastinal
,
Mediastinal Neoplasms - immunology
,
Mediastinal Neoplasms - pathology
,
Medical sciences
,
micronodular
,
Middle Aged
,
Neoplasms, Second Primary - immunology
,
Neoplasms, Second Primary - pathology
,
Oligonucleotide Array Sequence Analysis
,
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
,
Pneumology
,
Reverse Transcriptase Polymerase Chain Reaction
,
T-Lymphocyte Subsets - immunology
,
thymoma
,
Thymoma - immunology
,
Thymoma - pathology
,
Thymus Gland - immunology
,
Thymus Neoplasms - immunology
,
Thymus Neoplasms - pathology
,
Tumors of the respiratory system and mediastinum
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