PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency
Version 1
: Received: 3 March 2022 / Approved: 10 March 2022 / Online: 10 March 2022 (10:23:46 CET)
How to cite:
Barreto, S.; Al-Zubaidi, M.A.; Dale, T.P.; Worrall, A.J.; Kapacee, Z.; Kimber, S.J.; Sulé-Suso, J.; Forsyth, N.R.; Rutter, A.V. Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency. Preprints2022, 2022030143. https://doi.org/10.20944/preprints202203.0143.v1
Barreto, S.; Al-Zubaidi, M.A.; Dale, T.P.; Worrall, A.J.; Kapacee, Z.; Kimber, S.J.; Sulé-Suso, J.; Forsyth, N.R.; Rutter, A.V. Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency. Preprints 2022, 2022030143. https://doi.org/10.20944/preprints202203.0143.v1
Barreto, S.; Al-Zubaidi, M.A.; Dale, T.P.; Worrall, A.J.; Kapacee, Z.; Kimber, S.J.; Sulé-Suso, J.; Forsyth, N.R.; Rutter, A.V. Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency. Preprints2022, 2022030143. https://doi.org/10.20944/preprints202203.0143.v1
APA Style
Barreto, S., Al-Zubaidi, M.A., Dale, T.P., Worrall, A.J., Kapacee, Z., Kimber, S.J., Sulé-Suso, J., Forsyth, N.R., & Rutter, A.V. (2022). Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency. Preprints. https://doi.org/10.20944/preprints202203.0143.v1
Chicago/Turabian Style
Barreto, S., Nicholas R. Forsyth and Abigail V. Rutter. 2022 "Physiological Oxygen Causes the Release of Volatile Organic Compounds from Human Pluripotent Stem Cells with Possible Roles in Maintaining Self-Renewal and Pluripotency" Preprints. https://doi.org/10.20944/preprints202203.0143.v1
Abstract
Human pluripotent stem cells (hPSCs) have widespread potential biomedical applications. There is a need for large-scale in vitro production of hPSCs, and optimal culture methods are vital in achieving this. Physiological oxygen (2% O2) improves key hPSCs attributes, including genomic integrity, viability, and clonogenicity, however, its impact on hPSC metabolism remains un-clear. Here, Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS) was used to detect and quantify metabolic Volatile Organic Compounds (VOCs) in the headspace of hPSCs and their differentiated progeny. hPSCs were cultured in either 2% O2 or 21% O2. Media was collected from cell cultures and transferred into glass bottles for SIFT-MS measurement. The VOCs acetaldehyde and dimethyl sulfide (DMS)/ethanethiol were significantly increased in undifferentiated hPSCs compared to their differentiating counterparts, and these observations were more apparent in 2% O2. Pluripotent marker expression was consistent across both O2 concentrations tested. Transcript levels of ADH4, ADH5, and CYP2E1, encoding enzymes involved in converting ethanol to acetaldehyde, were upregulated in 2% O2, and chemical inhibition of ADH and CYP2E1 decreased acetaldehyde levels in hPSCs. Acetaldehyde and DMS/ethanethiol may be indicators of altered metabolism pathways in physiological oxygen culture conditions. The identification of non-destructive biomarkers for hPSC characterization has the potential to facilitate large-scale in vitro manufacture for future biomedical application.
Keywords
human pluripotent stem cells; human embryonic stem cells; human induced pluripotent stem cells; cellular metabolism; oxygen; self-renewal; pluripotency; differentiation; volatile organic compounds; Selected ion flow tube-mass spectrometry
Subject
Biology and Life Sciences, Cell and Developmental Biology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.