Angiogenin released from ABCB5+ stromal precursors improves healing of diabetic wounds by promoting angiogenesis

Authors

Karmveer Singh
Pallab Maity
Albert Kallon Koroma
Abhijit Basu
Rajeev Kumar Pandey
Seppe Vander Beken
Philipp Haas
Linda Krug
Adelheid Hainzl
Anca Sindrilaru
Christiane Pfeiffer
Meinhard Wlaschek
Natasha Y. Frank
Markus H. Frank, Edith Cowan UniversityFollow
Christoph Ganss
András Bánvölgyi
Norbert Wikonkál
Sabine Eming
Irena Pastar
Marjana Tomic-Canic
Mark A. Kluth
Karin Scharffetter-Kochanek

Document Type

Journal Article

Publication Title

Journal of Investigative Dermatology

Volume

142

Issue

6

First Page

1725

Last Page

1736.e10

PubMed ID

34808236

Publisher

Elsevier

School

School of Medical and Health Sciences

RAS ID

51796

Funders

Graduate Training Centre GRK 1789 Cellular and Molecular Mechanisms in Aging, by the Deutsche Forschungsgemeinschaft (German Research Foundation) – Project-ID 251293561 – SFB 1149 Trauma – Project-C5 RHEACELL GmbH & Co KG Baustein Program from the Medical Faculty, Ulm University (L.SBN.0154) National Institutes of Health (Bethesda, MD) grants NR015649, AR073614, and DK119085

Comments

Singh, K., Maity, P., Koroma, A. K., Basu, A., Pandey, R. K., Vander Beken, S., ... & Scharffetter-Kochanek, K. (2022). Angiogenin Released from ABCB5+ Stromal Precursors Improves Healing of Diabetic Wounds by Promoting Angiogenesis. Journal of Investigative Dermatology, 142(6), p. 1725-1736. https://doi.org/10.1016/j.jid.2021.10.026

Abstract

Severe angiopathy is a major driver for diabetes-associated secondary complications. Knowledge on the underlying mechanisms essential for advanced therapies to attenuate these pathologies is limited. Injection of ABCB5+ stromal precursors at the edge of nonhealing diabetic wounds in a murine db/db model, closely mirroring human type 2 diabetes, profoundly accelerates wound closure. Strikingly, enhanced angiogenesis was substantially enforced by the release of the ribonuclease angiogenin from ABCB5+ stromal precursors. This compensates for the profoundly reduced angiogenin expression in nontreated murine chronic diabetic wounds. Silencing of angiogenin in ABCB5+ stromal precursors before injection significantly reduced angiogenesis and delayed wound closure in diabetic db/db mice, implying an unprecedented key role for angiogenin in tissue regeneration in diabetes. These data hold significant promise for further refining stromal precursors–based therapies of nonhealing diabetic foot ulcers and other pathologies with impaired angiogenesis.

DOI

10.1016/j.jid.2021.10.026

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