Skip to Main Content
Yale School of Medicine
YSM Home

INFORMATION FOR

This study investigates skull bone marrow's lifelong expansion and resilience, showing its distinct vascular growth and resistance to aging-related degeneration compared to femur marrow.

Skull Bone Marrow: Resilient and Expanding with Age

Publication Title: Adult skull bone marrow is an expanding and resilient haematopoietic reservoir

Summary

Question
This study investigated the unique properties of skull bone marrow compared to long bone marrow, particularly its resilience to aging and its role in hematopoiesis (the process of forming blood cells). The researchers aimed to understand whether skull bone marrow functions differently and how it adapts to physiological and pathological challenges, such as pregnancy, stroke, and chronic myeloid leukemia.
Why it Matters
Bone marrow is essential for producing blood cells and supporting the immune system. Aging and diseases can impair its function, often leading to reduced immunity and increased risk of blood disorders. Understanding the skull bone marrow's resilience and adaptability could lead to better insights into maintaining hematopoietic health, developing treatments for age-related decline, and managing conditions like leukemia. This research also has potential implications for regenerative medicine and therapeutic strategies targeting bone marrow microenvironments.
Methods
The researchers used imaging techniques, genetic mouse models, and pharmacological treatments to analyze skull bone marrow and its vasculature across various ages (young, middle-aged, old, and geriatric). They compared it to long bone marrow under both normal conditions and specific challenges, including pregnancy, stroke, leukemia, and treatments like parathyroid hormone therapy. Human skull CT scans were also analyzed to validate findings.
Key Findings
Skull bone marrow showed lifelong expansion and vascular growth, contributing increasingly to blood cell production with age. Unlike long bone marrow, it remained resilient to aging markers such as inflammation, fat accumulation, and vascular deterioration. During pregnancy and stroke, skull bone marrow adapted dynamically, expanding and increasing blood cell production. In leukemia, it displayed moderate vascular expansion, contrasting with severe deterioration in long bone marrow. These findings highlight functional differences between skull and long bone marrow compartments.
Implications
The resilience of skull bone marrow against aging suggests it may serve as a key hematopoietic reservoir throughout life. Its dynamic adaptability in response to physiological and pathological challenges could inform treatments for bone marrow-related conditions, including therapies aimed at improving vascular integrity and enhancing blood cell production. Additionally, the study highlights the potential for skull bone marrow to be a focus in research on aging, immunity, and hematological diseases.
Next Steps
The researchers suggest further exploration of the molecular mechanisms driving skull bone marrow's resilience and adaptability. They propose studying how these findings could translate to clinical applications, such as enhancing bone marrow function in aging or disease, and evaluating whether similar properties exist in human skull marrow.
Funding Information

This research was supported by the European Research Council (AdG 101139772, PROTECT), the Deutsche Forschungsgemeinschaft (DFG, CRC 1366, project no. 394046768), and the Leducq Foundation.

Full Citation

Koh B, Mohanakrishnan V, Jeong H, Park H, Kruse K, Choi Y, Nieminen-Kelhä M, Kumar R, Pereira R, Adams S, Lee H, Bixel M, Vajkoczy P, Krause D, Adams R. Adult skull bone marrow is an expanding and resilient haematopoietic reservoir. Nature 2024, 636: 172-181. PMID: 39537918, PMCID: PMC11618084, DOI: 10.1038/s41586-024-08163-9.

Authors

  • Ralf H. Adams

    Last Author
    School Building Streamline Icon: https://streamlinehq.comOther Institution

Other Authors

  • Vishal Mohanakrishnan;
  • Hyun-Woo Jeong;
  • Hongryeol Park;
  • Kai Kruse;
  • Young Jun Choi;
  • Melina Nieminen-Kelhä;
  • Rahul Kumar;
  • Raquel S. Pereira;
  • Susanne Adams;
  • Hyuek Jong Lee;
  • M. Gabriele Bixel;
  • Peter Vajkoczy;
  • Daniela S. Krause

Research Themes

Keywords

Concepts