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Increased Program Cell Death-1 Expression on T Lymphocytes of Patients With Progressive Multifocal Leukoencephalopathy
Journal article   Open access   Peer reviewed

Increased Program Cell Death-1 Expression on T Lymphocytes of Patients With Progressive Multifocal Leukoencephalopathy

Chen Sabrina Tan, Evelyn Bord, Thomas A. Broge, Brett Glotzbecker, Heidi Mills, Sarah Gheuens, Jacalyn Rosenblatt, David Avigan and Igor J. Koralnik
Journal of acquired immune deficiency syndromes (1999), Vol.60(3), pp.244-248
07/01/2012
DOI: 10.1097/QAI.0b013e31825a313c
PMCID: PMC3400136
PMID: 22549384
url
https://doi.org/10.1097/QAI.0b013e31825a313cView
Published (Version of record) Open Access

Abstract

The cellullar immune response is important in the containment of progressive multifocal leukoencephalopathy (PML). We examined program cell death-1 (PD-1) expression, a marker of cellular immune exhaustion, on T lymphocytes in PML. PD-1 expression was elevated on total CD4(+) and CD8(+) T cells (medians 36% and 24%) in PML patients compared with healthy control subjects (medians 14% and 18%; P = 0.0015 and P = 0.033). In PML patients, JC virus (JCV)-specific CD8(+) cytotoxic T lymphocytes expressed PD-1 more frequently than total CD8(+) T lymphocytes (means 39% and 78%, P = 0.0004). Blocking the PD-1 receptor increased JCV-specific T-cell immune response in a subgroup of PML patients.
Immunology Infectious Diseases Life Sciences & Biomedicine Science & Technology

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