Cell-density independent increased lymphocyte production and loss rates post-autologous HSCT

Mariona Baliu Piqué, Vera van Hoeven, Julia Drylewicz, Lotte E van der Wagen, Anke Janssen, Sigrid A Otto, Menno C van Zelm, Rob J de Boer, Jürgen Jhe Kuball, Jose Am Borghans, Kiki Tesselaar

Research output: Contribution to journalArticleAcademicpeer-review

9 Downloads (Pure)

Abstract

Lymphocyte numbers need to be quite tightly regulated. It is generally assumed that lymphocyte production and lifespan increase homeostatically when lymphocyte numbers are low and, vice versa, return to normal once cell numbers have normalized. This widely accepted concept is largely based on experiments in mice, but is hardly investigated in vivo in humans. Here we quantified lymphocyte production and loss rates in vivo in patients 0.5-1 year after their autologous hematopoietic stem cell transplantation (autoHSCT). We indeed found that the production rates of most T- and B-cell subsets in autoHSCT-patients were two to eight times higher than in healthy controls, but went hand in hand with a threefold to ninefold increase in cell loss rates. Both rates also did not normalize when cell numbers did. This shows that increased lymphocyte production and loss rates occur even long after autoHSCT and can persist in the face of apparently normal cell numbers.

Original languageEnglish
Article numbere59775
Number of pages22
JournaleLife
Volume10
Early online date4 Feb 2021
DOIs
Publication statusPublished - 4 Feb 2021

Fingerprint

Dive into the research topics of 'Cell-density independent increased lymphocyte production and loss rates post-autologous HSCT'. Together they form a unique fingerprint.

Cite this