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Related Concept Videos

Tissue Transplantation01:24

Tissue Transplantation

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Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
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Related Experiment Video

Updated: Sep 18, 2025

A Human Bone Marrow 3D Model to Investigate the Dynamics and Interactions Between Resident Cells in Physiological or Tumoral Contexts
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Human bone marrow organoids: emerging progress but persisting challenges.

Paul E Bourgine1

  • 1Cell, Tissue & Organ Engineering Laboratory, BMC B11, 22184, Department of Clinical Sciences, Lund University, Lund, Sweden; Wallenberg Centre for Molecular Medicine, Lund Stem Cell Centre, Lund University, Lund University Cancer Centre, Lund University, Lund, Sweden.

Trends in Biotechnology
|June 20, 2025
PubMed
Summary
This summary is machine-generated.

Engineering human bone marrow organoids (BMOs) remains challenging. Current BMO-like systems model fetal hematopoiesis but may not reliably represent adult bone marrow processes, highlighting a need for improved engineering strategies.

Keywords:
bone marrowhematopoiesismesenchymal stem/stromal cellsorganoidpluripotent stem cells

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Area of Science:

  • Biotechnology
  • Developmental Biology
  • Hematology

Background:

  • Organoid systems offer miniaturized in vitro models for studying biological processes.
  • Engineering human bone marrow organoids (BMOs) is a significant challenge in regenerative medicine and disease modeling.
  • Recent advancements have introduced BMO-like systems derived from induced pluripotent stem cells (iPSCs).

Purpose of the Study:

  • To address the challenge of engineering reliable human bone marrow organoids (BMOs).
  • To evaluate the utility of current BMO-like systems in modeling human hematopoiesis.
  • To identify limitations and future directions for developing accurate adult BMO models.

Main Methods:

  • Utilizing induced pluripotent stem cells (iPSCs) for mesodermal induction.
  • Establishing mesenchymal-vascular-hematopoietic tissues in vitro.
  • Analyzing the compositional and functional features of engineered tissues.

Main Results:

  • Current BMO-like systems successfully model fetal hematopoiesis and associated niche elements.
  • Concerns exist regarding the reliability of these systems for modeling adult bone marrow processes.
  • The complexity of blood ontogeny poses challenges for developing relevant BMO systems.

Conclusions:

  • Existing BMO-like systems show promise but require further refinement for adult applications.
  • Developing robust human BMOs is crucial for advancing the study of hematopoiesis and bone marrow diseases.
  • Further research into engineering modalities is needed to overcome current limitations.