Title |
Hox genes are critical regulators of periosteal stem cell identity
|
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Published in |
Development (09501991), March 2023
|
DOI | 10.1242/dev.201391 |
Pubmed ID | |
Authors |
Kevin Leclerc, Lindsey H. Remark, Malissa Ramsukh, Anne Marie Josephson, Laura Palma, Paulo E. L. Parente, Margaux Sambon, Sooyeon Lee, Emma Muiños Lopez, Sophie M. Morgani, Philipp Leucht |
Abstract |
Periosteal stem and progenitor cells (PSPCs) are major contributors to bone maintenance and repair. Deciphering the molecular mechanisms that regulate their function is critical for the successful generation and application of future therapeutics. Here, we pinpoint Hox transcription factors as necessary and sufficient for periosteal stem cell function. Hox genes are transcriptionally enriched in periosteal stem cells and their overexpression in more committed progenitors drives reprogramming to a naïve, self-renewing stem cell-like state. Crucially, individual Hox family members are expressed in a location-specific manner and their stem cell-promoting activity is only observed when the Hox gene is matched to the anatomical origin of the PSPC, demonstrating a role for the embryonic Hox code in adult stem cells. Finally, we demonstrate that Hoxa10 overexpression partially restores the age-related decline in fracture repair. Together, our data highlight the importance of Hox genes as key regulators of PSPC identity in skeletal homeostasis and repair. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 7 | 37% |
Canada | 1 | 5% |
India | 1 | 5% |
Australia | 1 | 5% |
Germany | 1 | 5% |
Unknown | 8 | 42% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 11 | 58% |
Scientists | 6 | 32% |
Practitioners (doctors, other healthcare professionals) | 2 | 11% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 7 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 2 | 29% |
Researcher | 2 | 29% |
Student > Ph. D. Student | 1 | 14% |
Unknown | 2 | 29% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 3 | 43% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 14% |
Unknown | 3 | 43% |