Table of contents Appendix Figure S1. CDC-EVs and ...

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EV-YF1 transfer in control NHDFs compared to CDCs. Appendix Figure S4. EV-YF1 modulates IL-10 expression. Appendix Figure S5. EV-YF1 induced direct ...
Table of contents Appendix Figure S1. CDC-EVs and NHDF-EVs size/concentration. Appendix Figure S2. CDCs potency from different donors in vivo. Appendix Figure S3. EV-YF1 transfer in control NHDFs compared to CDCs. Appendix Figure S4. EV-YF1 modulates IL-10 expression. Appendix Figure S5. EV-YF1 induced direct protection of cardiomyocytes from oxidative stress. Appendix Figure S6. Cardiac Il10 and EV-YF1 expression after I/R. Appendix Figure S7. EV-YF1 reduced the number of inflammatory macrophages CD68+ and apoptotic cardiomyocytes in scar area. Appendix Figure S8. Exosome isolation protocol. Appendix Figure Legends.

Appendix Figure S1. CDC-EVs and NHDF-EVs size/concentration.

A

B

Appendix Figure S2. CDCs potency from different donors in vivo.

15

10

D EF %

5

0 YKT

-5

-10

OD220

ZCI

ZKN

BM030

LO88

Placebo

Appendix Figure S3. EV-YF1 transfer in control NHDFs compared to CDCs.

A

B EV

**

2500 2000

**

1500 1000 500 0

350

BMDM CDCs NHDFs

**

300 250 200 150

**

100

50 0

Ys

EV-YF1

Ys

EV-YF1

CDCs NHDFs

**

300

Relative EV-YF1 expression

Relative EV-YF1 expression

CDCs NHDFs

Relative EV-YF1 expression

Cells 3000

C

250 200 150 100

****

50 0

Ys

EV-YF1

Ys

EV-YF1

Ys

EV-YF1

Ys

EV-YF1

Appendix Figure S4. EV-YF1 modulates IL-10 expression.

A 1.40

*

1.20

P=0.0187

ns P=0.0759

450

48h

1.00 0.80 0.60

0.40

350 300 250 200 150

50

0.00

0 Ys

EV-YF1

****

100

0.20

LPS

48h 72h

****

400

72h

IL10 concentration (pg/ml)

Relative IL10 transcript expression

B

**

P=0.0048

NT

LPS

**** ****

Ys

EV-YF1

Appendix Figure S5. EV-YF1 induced direct protection of cardiomyocytes from oxidative stress.

**

P=0.0047 140

% of calcein (RFU)

120

****

P40 Il10 Ct values

7

6

Number of animals

5

4

3

2

1

0 Vehicle

Ys

EV-YF1

Appendix Figure S7. EV-YF1 reduced the number of inflammatory macrophages CD68+ and apoptotic cardiomyocytes in scar area.

A Vehicle

Ys

EV-YF1

CD68 a-actinin Dapi

B Vehicle

Ys

TUNEL a-actinin Dapi

EV-YF1

Appendix Figure S8. Exosome isolation protocol.

5 days

CDCs 100% confluence

Filtration 0.45 mM to remove cellular debris

CDCs Serum Free media

A

Ultrafiltration

3,000 g, 1 hour, 4C

B

+ Exoquick solution 4C-16 hours

Centrifugation 16,000 g, 15min, 4C

Exosomes concentrated conditioned media

Exosomes pellet

APPENDIX FIGURE LEGEND

Appendix Figure S1 - CDC-EVs and NHDF-EVs size/concentration. A, B CDC-EVs (A) and NHDF-EVs (B) size distribution and particle number were analyzed by the LM10-HS system (NanoSight). Histogram of CDC-EVs diameter, representative of results from a total of 6 donors.

Appendix Figure S2 - CDCs potency from different donors in vivo. Percent change in ejection fraction (baseline 2 hrs post-MI to 21 days, ΔEF%) post-MI with CDC treatment (6 different donors, n=8 animals/donor) or placebo (saline, n=14 animals). Potent CDCs (ZCI, YKT, OD220) were delineated from non-potent CDCs (LO88, BM030, ZKN) by positive ΔEF%.

Appendix Figure S3. EV-YF1 transfer in control NHDFs compare to CDCs. A, B, C Expression of EV-YF1 by qPCR in cells (A), EVs (B) and BMDMs (C) according the same protocol described in Figure 4A for CDCs (blue) and NHDFs (green). Results depict the mean ± SEM of n=3. (Groups were compared using 2-tailed, unpaired, Student’s t test; (A) (CDC: p=0.0013; NHDF: p=0.0088), (B) (CDC: p=0.0059; NHDF: p=0.0068) and (C) (CDC: p=0.0019; NHDF: p