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. 2016 Jan 26;5:e09394. doi: 10.7554/eLife.09394

Figure 4. Donor BMSCs interact with recipient Th 17 cells and produce IL-6.

(A, B) Th 17 cells (pink in A) and IL-6-producing cells (yellow in left panel of Figure 4B, arrows) were observed in the lacrimal gland of mismatched BMSC transplanted mice 8 weeks after transplantation. Yellow cells in (B) are due to co-localization of IL-6 (red) and donor BMSCs (GFP), resulting in yellow. Mismatched HSC transplanted mice did not show co-localization of donor cells (green) with IL-6 nor IL-17-producing cells. Representative images from two replicate experiments (n = 3 per group). Scale bar, 20 μm. (C) CD4+IL-17+ cells comprised more than 50% of splenic cells from B10.D2 BMSC + RAG2KO HSCs transplanted BALB/c recipients (left), while the ratio was low in spleens from B10.D2 BMSC + BALB/c HSC transplanted RAG2KO recipients (right). BMSC, bone marrow stromal/stem cells; HSC, hematopoietic stem cells.

DOI: http://dx.doi.org/10.7554/eLife.09394.018

Figure 4.

Figure 4—figure supplement 1. GFP donor MSCs produce IL-6.

Figure 4—figure supplement 1.

Split images of IL-6 immunostaining and GFP+ donor MSC/ HSC into BALB/c Mismatched MSC-transplanted recipient lacrimal gland (left) and mismatched HSC-transplanted recipient lacrimal gland (right) from Figure 4B.
D, Duct. Scale bar, 20 μm. HSC, hematopoietic stem cells