The exit of naive pluripotency contains a metabolism-induced checkpoint for telomere homeostasis

de Souza, RA, Barneda, D, Karimlou, D, Bovee, NGP, Zheng, Y, Kahlman, EJEM, Novo, CL, Ellis, JK, Leeke, BJ, Li, S, Prakash Bangalore, M, Liu, Z, Sousa, BC, Lopez-Clavijo, AF, Jansen, JH, Barahona, M, Percharde, M, Keun, HC, Christian, M ORCID: https://orcid.org/0000-0002-1616-4179, Marks, H and Azuara, V, 2025. The exit of naive pluripotency contains a metabolism-induced checkpoint for telomere homeostasis. Cell Reports, 44 (12): 116654. ISSN 2211-1247

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Abstract

During peri-implantation development, the pluripotent tissue of the early embryo undergoes profound cellular and biochemical reprogramming. These transformations are essential for subsequent development, yet how they are coordinated with the preservation of genome integrity remains poorly understood. Here, we uncover a telomere length checkpoint that is elicited by metabolic remodeling as mouse embryonic stem cells (ESCs) transition from the naive to formative pluripotent state. We show that the exit of naive pluripotency is marked by accelerated mitochondrial respiration and de novo lipogenesis, fueling lipid droplet accumulation required for tissue remodeling. Unexpectedly, these acute metabolic shifts trigger transient telomere shortening and activate ZSCAN4, a pluripotency-associated regulator of telomeres, followed by telomere re-elongation as cells adopt a more glycolytic metabolic profile. Our findings reveal a feedback mechanism in which metabolism-induced telomere stress engages ZSCAN4 as a protective response, thereby linking metabolic state to telomere homeostasis during early developmental progression.

Item Type:	Journal article
Publication Title:	Cell Reports
Creators:	de Souza, R.A., Barneda, D., Karimlou, D., Bovee, N.G.P., Zheng, Y., Kahlman, E.J.E.M., Novo, C.L., Ellis, J.K., Leeke, B.J., Li, S., Prakash Bangalore, M., Liu, Z., Sousa, B.C., Lopez-Clavijo, A.F., Jansen, J.H., Barahona, M., Percharde, M., Keun, H.C., Christian, M., Marks, H. and Azuara, V.
Publisher:	Elsevier BV
Date:	23 December 2025
Volume:	44
Number:	12
ISSN:	2211-1247
Identifiers:	Number Type 10.1016/j.celrep.2025.116654 DOI 2547753 Other
Rights:	©2025 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Divisions:	Schools > School of Science and Technology
Record created by:	Laura Borcherds
Date Added:	18 Dec 2025 11:21
Last Modified:	18 Dec 2025 11:21
URI:	https://irep.ntu.ac.uk/id/eprint/54886

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