Diabetes mellitus induces bone marrow microangiopathy

Atsuhiko Oikawa, Mauro Siragusa, Federico Quaini, Giuseppe Mangialardi, Rajesh G Katare, Andrea Caporali, Jaap D van Buul, Floris P J van Alphen, Gallia Graiani, Gaia Spinetti, Nicolle Kraenkel, Lucia Prezioso, Costanza Emanueli, Paolo Madeddu

Research output: Contribution to journalArticle (Academic Journal)peer-review

204 Citations (Scopus)


OBJECTIVE: The impact of diabetes on the bone marrow (BM) microenvironment was not adequately explored. We investigated whether diabetes induces microvascular remodeling with negative consequence for BM homeostasis.

METHODS AND RESULTS: We found profound structural alterations in BM from mice with type 1 diabetes with depletion of the hematopoietic component and fatty degeneration. Blood flow (fluorescent microspheres) and microvascular density (immunohistochemistry) were remarkably reduced. Flow cytometry verified the depletion of MECA-32(+) endothelial cells. Cultured endothelial cells from BM of diabetic mice showed higher levels of oxidative stress, increased activity of the senescence marker beta-galactosidase, reduced migratory and network-formation capacities, and increased permeability and adhesiveness to BM mononuclear cells. Flow cytometry analysis of lineage(-) c-Kit(+) Sca-1(+) cell distribution along an in vivo Hoechst-33342 dye perfusion gradient documented that diabetes depletes lineage(-) c-Kit(+) Sca-1(+) cells predominantly in the low-perfused part of the marrow. Cell depletion was associated to increased oxidative stress, DNA damage, and activation of apoptosis. Boosting the antioxidative pentose phosphate pathway by benfotiamine supplementation prevented microangiopathy, hypoperfusion, and lineage(-) c-Kit(+) Sca-1(+) cell depletion.

CONCLUSIONS: We provide novel evidence for the presence of microangiopathy impinging on the integrity of diabetic BM. These discoveries offer the framework for mechanistic solutions of BM dysfunction in diabetes.

Translated title of the contributionDiabetes Mellitus Induces Bone Marrow Microangiopathy
Original languageEnglish
Pages (from-to)498 - 508
Number of pages11
JournalArteriosclerosis, Thrombosis, and Vascular Biology
Issue number3
Publication statusPublished - Mar 2010

Bibliographical note

Publisher: Aterio Thromb Vasc Biol


  • Animals
  • Antigens, Ly
  • Bone Marrow
  • Cells, Cultured
  • Diabetes Mellitus, Experimental
  • Diabetic Angiopathies
  • Disease Models, Animal
  • Endothelium, Vascular
  • Homeostasis
  • Male
  • Membrane Proteins
  • Mice
  • Mice, Inbred Strains
  • Oxidative Stress
  • Proto-Oncogene Proteins c-kit
  • Regional Blood Flow
  • Streptozocin


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