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Cited by 358

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Programmed Death-1 (PD-1) is a Marker of Germinal Center-associated T Cells and Angioimmunoblastic T-Cell Lymphoma

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Dorfman, David M., Brown, Julia A., Shahsafaei, Aliakbar, Freeman, Gordon J.·2006·American Journal of Surgical Pathology

Abstract

Programmed death-1 (PD-1), a member of the CD28 costimulatory receptor family, is expressed by germinal center-associated T cells in reactive lymphoid tissue. In a study of a wide range of lymphoproliferative disorders, neoplastic T cells in 23 cases of angioimmunoblastic lymphoma were immunoreactive for PD-1, but other subtypes of T cell and B cell non-Hodgkin lymphoma, as well as classic Hodgkin lymphoma, did not express PD-1. The pattern of PD-1 immunostaining of neoplastic cells in angioimmunoblastic lymphoma was similar to that reported for CD10, a recently described marker of neoplastic T cells in angioimmunoblastic lymphoma. Tumor-associated follicular dendritic cells in cases of angioimmunoblastic lymphoma were found to express PD-L1, the PD-1 ligand. In addition, PD-1-positive reactive T cells formed rosettes around neoplastic L&H cells in 14 cases of nodular lymphocyte predominant Hodgkin lymphoma studied. These findings, along with data from previous studies, suggest that angioimmunoblastic lymphoma is a neoplasm of germinal center-associated T cells and that there is an association of germinal center-associated T cells and neoplastic cells in nodular lymphocyte predominant Hodgkin lymphoma. PD-1 is a useful new marker for angioimmunoblastic lymphoma and lends further support to a model of T-cell lymphomagenesis in which specific subtypes of T cells may undergo neoplastic transformation and result in specific, distinct histologic, immunophenotypic, and clinical subtypes of T-cell neoplasia.

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Metadata

Authors
Dorfman, D. M., Brown, J. A., Shahsafaei, A., & Freeman, G. J.
Venue
American Journal of Surgical Pathology
Published
2006-07
Volume
30
Issue
7
Pages
802-810
ISSN
0147-5185 (ISSN-L)
OpenAlex
W1985563120
Cited by
358
References
2
FWCI
11.87
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Programmed Death-1 (PD-1) is a Marker of Germinal Center-associated T Cells and Angioimmunoblastic T-Cell Lymphoma. https://app.cochat.ai/papers/10.1097/01.pas.0000209855.28282.ce
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Dorfman, D. M., Brown, J. A., Shahsafaei, A., & Freeman, G. J. (2006). Programmed Death-1 (PD-1) is a Marker of Germinal Center-associated T Cells and Angioimmunoblastic T-Cell Lymphoma. American Journal of Surgical Pathology. https://doi.org/10.1097/01.pas.0000209855.28282.ce

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