Clonal Hematopoiesis Before, During, and After Human Spaceflight.

Mencia-Trinchant, Nuria, MacKay, Matthew J, Chin, Christopher, Afshinnekoo, Ebrahim, Foox, Jonathan, Meydan, Cem, Butler, Daniel, Mozsary, Christopher, Vernice, Nicholas A, Darby, Charlotte, Schatz, Michael C, Bailey, Susan M, Melnick, Ari M, Guzman, Monica L, Bolton, Kelly, Braunstein, Lior Z, Garrett-Bakelman, Francine, Levine, Ross L, Hassane, Duane C, Mason, Christopher E (December 2020) Clonal Hematopoiesis Before, During, and After Human Spaceflight. Cell Reports, 33 (10). p. 108458. ISSN 2211-1247

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URL: https://www.ncbi.nlm.nih.gov/pubmed/33242405
DOI: 10.1016/j.celrep.2020.108458

Abstract

Clonal hematopoiesis (CH) occurs when blood cells harboring an advantageous mutation propagate faster than others. These mutations confer a risk for hematological cancers and cardiovascular disease. Here, we analyze CH in blood samples from a pair of twin astronauts over 4 years in bulk and fractionated cell populations using a targeted CH panel, linked-read whole-genome sequencing, and deep RNA sequencing. We show CH with distinct mutational profiles and increasing allelic fraction that includes a high-risk, TET2 clone in one subject and two DNMT3A mutations on distinct alleles in the other twin. These astronauts exhibit CH almost two decades prior to the mean age at which it is typically detected and show larger shifts in clone size than age-matched controls or radiotherapy patients, based on a longitudinal cohort of 157 cancer patients. As such, longitudinal monitoring of CH may serve as an important metric for overall cancer and cardiovascular risk in astronauts.

Item Type: Paper
Subjects: organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > hematopoietic cell
organism description > animal > mammal > primates > hominids > human
CSHL Authors:
Communities: CSHL labs > Schatz lab
SWORD Depositor: CSHL Elements
Depositing User: CSHL Elements
Date: 8 December 2020
Date Deposited: 07 May 2021 18:35
Last Modified: 07 May 2021 18:35
URI: https://repository.cshl.edu/id/eprint/40056

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