PUBLICATION

IL-10 from plasmacytoid dendritic cells promotes angiogenesis in the early stage of endometriosis

Authors
Suen, J.L., Chang, Y., Shiu, Y.S., Hsu, C.Y., Sharma, P., Chiu, C.C., Chen, Y.J., Hour, T.C., Tsai, E.M.
ID
ZDB-PUB-190817-11
Date
2019
Source
The Journal of pathology   249(4): 485-497 (Journal)
Registered Authors
Keywords
Angiogenesis, Endometriosis, IL-10, Plasmacytoid dendritic cell, Zebrafish
MeSH Terms
  • Adoptive Transfer
  • Adult
  • Animals
  • Apoptosis
  • Cells, Cultured
  • Coculture Techniques
  • Dendritic Cells/metabolism*
  • Dendritic Cells/pathology
  • Dendritic Cells/transplantation
  • Disease Models, Animal
  • Endometriosis/metabolism*
  • Endometriosis/pathology
  • Endometrium/blood supply*
  • Female
  • Human Umbilical Vein Endothelial Cells/metabolism
  • Humans
  • Interleukin-10/deficiency
  • Interleukin-10/genetics
  • Interleukin-10/metabolism*
  • Interleukin-3 Receptor alpha Subunit/metabolism
  • Mice, Inbred C57BL
  • Mice, Knockout
  • Mice, Nude
  • Middle Aged
  • Neovascularization, Pathologic*
  • Paracrine Communication*
  • Receptors, Interleukin-10/metabolism
  • Signal Transduction
  • Young Adult
  • Zebrafish
PubMed
31418859 Full text @ J. Pathol.
Abstract
An elevated level of IL-10 has been considered a critical factor for the development of endometriosis; however, its detailed mechanism and causal relationship remain unclear. This study explored the cellular source and angiogenic activity of local IL-10 during the early stage of endometriosis. Using a surgical murine model, we found that localised treatment with exogenous recombinant IL-10 on the day of surgery significantly enhanced endometriotic lesion growth and angiogenesis, whereas blocking local IL-10 activity using mAbs significantly suppressed those effects. Adoptive transfer of Il10+/+ plasmacytoid dendritic cells into mice significantly enhanced lesion development, whereas Il10-/- plasmacytoid dendritic cells significantly inhibited lesion development. Furthermore, in vitro angiogenesis analyses demonstrated that the IL-10 and IL-10 receptor pathway stimulated the migratory and tube formation ability of HUVECs as well as ectopic endometrial mesenchymal stem cells through, at least in part, a VEGF-dependent pathway. We also found that recombinant IL-10 directly stimulated angiogenesis based on a Matrigel plug assay as well as a zebrafish model. Pathological results from human endometrioma tissues showed the increased infiltration of CD123+ plasmacytoid dendritic cells and higher percentages of cells that express the IL-10 receptor and CD31 as compared with the corresponding normal counterparts. Taken together, these results show that IL-10 secreted from local plasmacytoid dendritic cells promotes endometriosis development through pathological angiogenesis during the early disease stage. This study provides a scientific basis for a potential therapeutic strategy targeting the IL-10-IL-10 receptor pathway in the endometriotic milieu. This article is protected by copyright. All rights reserved.
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