Assessment of signal consistence of IFP1.4 labeled CPC.

<p>(<b>A</b>) Correlation between CPC numbers and near infrared signals, IFP1.4-labeled CPC at 2.5×10⁵, 1.25×10⁵, 6.25×10⁴, 3.125×10⁴, and 1.57×10⁴ were seeded into 24-well plate, and incubated with 25 µM biliverdin overnight, and then subjected to scanning on the Odyssey Infrared imager; (<b>B</b>) Assessment of near infrared signal intensity showed a robust linear correlation (R² = 0.9927) between the cell number and near infrared signal; (<b>C–D</b>) Comparison of near infrared signal from CPC ^IFP1.4 at P6, P7, P8 and P9 with/without Biliverdin treatment.</p

Additional file 1: of Histone deacetylase (HDAC) inhibition improves myocardial function and prevents cardiac remodeling in diabetic mice

Table S1. Echocardiographic parameters among the different groups. Table S2. Heart weight, body weight and heart/body ratio. Figure S1. Other HDAC isoforms in myocardium from STZ-treated mice and treatments. Figure S2. HDAC inhibition decreased the production of superoxide in myocardium from STZ-induced diabetic mice and different treatments

Additional file 3: Figure S3. of Inhibition of Oct 3/4 mitigates the cardiac progenitor-derived myocardial repair in infarcted myocardium

Showing immunostaining signals for CD31 and α-SMA from sham and MI myocardium. Hearts from sham and MI + PBS groups were stained with CD31 (red) and GFP (green) to determine the development of c-kit+ CSC-derived capillaries. c-kit+ CSC-derived vascular smooth muscle cells were stained with α-SMA (green) and GFP (red). (Positive staining of c-kit+ CSCs from other groups are presented in Fig. 4a, b) Scale bar: 100 μm. The detailed procedure is described in Materials and Methods. (TIF 295 kb

TNF-induced endothelial cell apoptosis is inhibited by IL-10.

<p>ECs were stimulated with TNF (20 ng/ml) with or without IL-10 (10 ng/ml) for 24h. After treatments cells were washed with PBS and fixed in 4% formalin for TUNEL staining. ECs death was measured by TUNEL assay kit. <b>(A-B)</b> IL-10 attenuates TNF-induced endothelial cells death. Original magnification was 200X. N = 3.</p

IL-10 treatment improves endothelial cells proliferation after inflammatory insult.

<p>Carotid injury was performed in WT and IL-10 KO mice by wire injury method for 28 days. (<b>A-B)</b> 24h prior to euthanasia, BrdU (30 mg/kg) was injected in mice intravenously. BrdU positive cells were measured in carotid artery sections using anti-BrdU antibody. IL-10 KO mice showed exaggerated BrdU positive cells. The original magnification of images was 200X. <b>(C-D)</b> ECs were rendered quiescent by culturing in the absence of serum for 48h and then stimulated with TNF (20 ng/ml) with or without IL-10 (10 ng/ml) for 24h. Cell proliferation was measured by the incorporation of BrdU. TNF treated ECs showed reduced BrdU positive cells. IL-10 induced ECs proliferation as shown by enhanced BrdU incorporation. The original magnification of images was 200X. N = 4–5.</p

DHI improved perfusion of ischemic limbs in STZ-induced diabetic mice.

(A) Representative images of laser Doppler perfusion analysis for non-diabetic mice, STZ-induced diabetic mice treated with or without DHI before surgery and at different time points after surgery. Low perfusion signals (dark blue) were observed in the ischemic hind limb, whereas high perfusion signals (red) were detected in diabetic mice treated with DHI on postoperative days 14, 21, 28 and 35. (B) Perfusion recovery was impaired in untreated STZ-induced diabetic mice. The mean hind-limb blood flow was calculated as the ratio of ischemic (right) side to non-ischemic (left) side. DHI showed a significantly improved perfusion recovery after HLI surgery. **P.01, ***P .001 vs. DM+vehicle.</p

Analysis of CPC apoptosis and cardiac differentiation capacity after IFP1.4 gene modification.

<p>(<b>A–B</b>) Comparison of cell apoptosis between un-infected CPC and IFP1.4 infected CPC by TUNEL staining; (<b>C</b>) Real time RT-PCR comparison of cTnI expression between un-infected CPC and IFP1.4 infected CPC with/without TSA treatment.</p

DHI improved glucose homeostasis.

<p>(A) In KKAy mice, the levels of blood glucose in DHI-treated and rosiglitazone-treated groups were significantly lower than that in vehicle-treated group. (B) Intraperitoneal glucose tolerance testing was performed in KKAy mice at the end of the feeding course, and the areas under the glucose tolerance tests curves were shown in (C). (D) In STZ-induced diabetic mice, the level of blood glucose in DHI-treated and metformin-treated groups were significantly lower than that in the vehicle-treated group. (E) Intraperitoneal glucose tolerance testing was performed in STZ-induced diabetic mice at the end of the feeding course, and areas under the glucose tolerance tests curves were shown in (F). Values are mean ± SEM. <i>*P<0</i> .<i>05</i>, <i>**P<0</i> .<i>01</i>, <i>***P<0</i> .<i>001 vs vehicle</i>.</p

DHI increased PPARδ expression in ischemic muscle tissue.

<p>(A) Quantitative PCR showing increased PPARδ expression in genetic diabetic mice treated with DHI. (B) Quantitative PCR showing increased expression of PPARδ in chemically induced diabetic mice treated with DHI. Data represent the mean ± SEM, C57BL/6J: n = 5, KKAy+vehicle: n = 4, KKAy+DHI: n = 6; Non-DM: n = 3, DM+vehicle: n = 5, DM+ DHI: n = 5; <i>vs</i>. <i>vehicle</i>, <i>**P<0</i> .<i>01</i>, <i>*P<0</i>.<i>05</i>.</p

IL-10 differentially regulates endothelial cells and vascular smooth muscle cells proliferation.

<p>Endothelial cells and rat vascular smooth muscle cells were rendered quiescent (Q) by culturing in the absence of serum for 48h and then stimulated with TNF (20 ng/ml) with or without IL-10 (10 ng/ml) for 24h. Cell proliferation was measured by the incorporation of H³ labeled thymidine. As cells proliferate the radiolabelled thymidine was incorporated in their DNA. (<b>A)</b> IL-10 treatment attenuated TNF-induced inhibition of ECs proliferation. (<b>B)</b> TNF-induced VSMCs proliferation was inhibited by IL-10. Abbreviations: Q-quiescent, IgG-immunoglobulin G, IL-10-Interleukin 10, TNF-Tumor necrotic factor α. N = 4–5.</p