Volume 190, Issue 1 pp. 79-83
Short Report

Mass cytometry identifies expansion of double positive and exhausted T cell subsets in the tumour microenvironment of patients with POEMS syndrome

Taxiarchis V. Kourelis

Taxiarchis V. Kourelis

Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA

These authors contributed equally as senior authors.Search for more papers by this author
Dragan Jevremovic

Dragan Jevremovic

Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA

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Erik Jessen

Erik Jessen

Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA

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Surendra Dasari

Surendra Dasari

Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA

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Jose C. Villasboas

Jose C. Villasboas

Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA

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Angela Dispenzieri

Angela Dispenzieri

Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA

These authors contributed equally as senior authors.Search for more papers by this author
Shaji Kumar

Shaji Kumar

Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA

These authors contributed equally as senior authors.Search for more papers by this author
First published: 20 February 2020
Citations: 3

Correspondence: Taxiarchis V. Kourelis, Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

E-mail: [email protected]

Summary

We sought to dissect the tumour microenvironment in a small cohort (N = 10) of patients with POEMS at diagnosis and after therapy using mass cytometry. We included 10 MGUS patients as controls. We identified 29 immune cell subsets in the CD45+ and CD3+ compartments. Double positive T cells and PD-1 positive CD4 T cells were expanded and naïve CD4 T cells were decreased in the bone marrow of patients with newly diagnosed/progressing POEMS. These findings provide evidence for possible antigenic-driven selection as a driver of disease pathogenesis in POEMS.

Conflict of interest

The authors have no competing financial interests in relation to the work described.

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