Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape

Summary: The pituitary represents the master gland governing the endocrine system. We constructed a single-cell (sc) transcriptomic atlas of male mouse endocrine pituitary by incorporating existing and new data, spanning important postnatal ages in both healthy and injured condition. We demonstrate...

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Main Authors: Silke De Vriendt, Emma Laporte, Berkehür Abaylı, Julie Hoekx, Florian Hermans, Diether Lambrechts, Hugo Vankelecom
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:iScience
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Online Access:http://www.sciencedirect.com/science/article/pii/S2589004224029353
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author Silke De Vriendt
Emma Laporte
Berkehür Abaylı
Julie Hoekx
Florian Hermans
Diether Lambrechts
Hugo Vankelecom
author_facet Silke De Vriendt
Emma Laporte
Berkehür Abaylı
Julie Hoekx
Florian Hermans
Diether Lambrechts
Hugo Vankelecom
author_sort Silke De Vriendt
collection DOAJ
description Summary: The pituitary represents the master gland governing the endocrine system. We constructed a single-cell (sc) transcriptomic atlas of male mouse endocrine pituitary by incorporating existing and new data, spanning important postnatal ages in both healthy and injured condition. We demonstrate strong applicability of this new atlas to unravel pituitary (patho)biology by focusing on its stem cells and investigating their complex identity (unveiling stem cell markers) and niche (pinpointing regulatory factors). Importantly, we functionally validated transcriptomic findings using pituitary stem cell organoids, revealing roles for Krüppel-like transcription factor 5 (KLF5), activator protein-1 (AP-1) complex and epidermal growth factor (EGF) pathways in pituitary stem cell regulation. Our investigation substantiated changes in stem cell dynamics during aging, reinforcing the inflammatory/immune nature in elderly pituitary and stem cells. Finally, we show translatability of mouse atlas-based findings to humans, particularly regarding aging-associated profile. This pituitary sc map is a valuable tool to unravel pituitary (patho)biology.
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issn 2589-0042
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publishDate 2025-02-01
publisher Elsevier
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spelling doaj-art-c2f02c11d318448b8d448bbcf22072b02025-01-19T06:26:29ZengElsevieriScience2589-00422025-02-01282111708Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscapeSilke De Vriendt0Emma Laporte1Berkehür Abaylı2Julie Hoekx3Florian Hermans4Diether Lambrechts5Hugo Vankelecom6Laboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, BelgiumLaboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, BelgiumLaboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, BelgiumLaboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, BelgiumDepartment of Cardiology and Organ Systems (COS), Biomedical Research Institute (BIOMED), Faculty of Medicine and Life Sciences, Hasselt University, 3590 Diepenbeek, BelgiumLaboratory for Translational Genetics, Department of Human Genetics, KU Leuven, 3000 Leuven, Belgium; Center for Cancer Biology, Vlaams Instituut voor Biotechnologie (VIB), 3000 Leuven, BelgiumLaboratory of Tissue Plasticity in Health and Disease, Cluster of Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium; Corresponding authorSummary: The pituitary represents the master gland governing the endocrine system. We constructed a single-cell (sc) transcriptomic atlas of male mouse endocrine pituitary by incorporating existing and new data, spanning important postnatal ages in both healthy and injured condition. We demonstrate strong applicability of this new atlas to unravel pituitary (patho)biology by focusing on its stem cells and investigating their complex identity (unveiling stem cell markers) and niche (pinpointing regulatory factors). Importantly, we functionally validated transcriptomic findings using pituitary stem cell organoids, revealing roles for Krüppel-like transcription factor 5 (KLF5), activator protein-1 (AP-1) complex and epidermal growth factor (EGF) pathways in pituitary stem cell regulation. Our investigation substantiated changes in stem cell dynamics during aging, reinforcing the inflammatory/immune nature in elderly pituitary and stem cells. Finally, we show translatability of mouse atlas-based findings to humans, particularly regarding aging-associated profile. This pituitary sc map is a valuable tool to unravel pituitary (patho)biology.http://www.sciencedirect.com/science/article/pii/S2589004224029353Endocrine system physiologyStem cells researchTranscriptomics
spellingShingle Silke De Vriendt
Emma Laporte
Berkehür Abaylı
Julie Hoekx
Florian Hermans
Diether Lambrechts
Hugo Vankelecom
Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
iScience
Endocrine system physiology
Stem cells research
Transcriptomics
title Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
title_full Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
title_fullStr Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
title_full_unstemmed Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
title_short Single-cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
title_sort single cell transcriptome atlas of male mouse pituitary across postnatal life highlighting its stem cell landscape
topic Endocrine system physiology
Stem cells research
Transcriptomics
url http://www.sciencedirect.com/science/article/pii/S2589004224029353
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AT berkehurabaylı singlecelltranscriptomeatlasofmalemousepituitaryacrosspostnatallifehighlightingitsstemcelllandscape
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