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Do Amniotic Products Have Viable Stem Cells or Can They Help Autologous Stem Cells?
[All slides are protected by copyright-Interventional Orthopedics Foundation-2015]
Marketing materials and/or communications from multiple companies vending FDA 361 registered amniotic tissues claim that these
products contain viable stem cells. Many physicians who purchase these products for injection have web-sites that refer to these
injections as “stem cell therapy”.
Typical communications from amniotic vendors:
Provider Web-sites…
Overall Results of Viability Testing:
Flowable Amniotic ProductCells
Present?Culture
Expandable?
Amniofix Injectable No No
BioD Restore No No
FloGraft Freedom No No
Ovation Cellular Repair Matrix Yes No
PalinGen Sport Flow No No
Are there cells visible under
inversion microscopy?
Did any cells grow under ideal
nutrition and other conditions after
plating the product?
AmnioFix Injectable (1:10 Dilution in CCM)
48 Hours (Pre-Wash)
48 Hours (Post-Wash)
Flowable Amniotic Product Cells Present? Culture Expandable?Amniofix Injectable No No
BioD Restore No NoFloGraft Freedom No No
Ovation Cellular Repair Matrix Yes NoPalinGen Sport Flow No No
48 Hours (Pre-Wash)
48 Hours (Post-Wash)
BioD Restore (1:10 Dilution in CCM)
Flowable Amniotic Product Cells Present? Culture Expandable?Amniofix Injectable No No
BioD Restore No NoFloGraft Freedom No No
Ovation Cellular Repair Matrix Yes NoPalinGen Sport Flow No No
48 Hours (Pre-Wash)
48 Hours (Post-Wash)
FloGraft Freedom (1:10 Dilution in CCM)
Flowable Amniotic Product Cells Present? Culture Expandable?Amniofix Injectable No No
BioD Restore No NoFloGraft Freedom No No
Ovation Cellular Repair Matrix Yes NoPalinGen Sport Flow No No
48 Hours (Pre-Wash)
48 Hours (Post-Wash)
Ovation Cellular Repair Matrix (1:10 Dilution in CCM)
Flowable Amniotic Product Cells Present? Culture Expandable?Amniofix Injectable No No
BioD Restore No NoFloGraft Freedom No No
Ovation Cellular Repair Matrix Yes NoPalinGen Sport Flow No No
Adhered object exhibits cellular morphology
48 Hours (Pre-Wash)
48 Hours (Post-Wash)
PalinGen Flow Sport (1:10 Dilution in CCM)
Flowable Amniotic Product Cells Present? Culture Expandable?Amniofix Injectable No No
BioD Restore No NoFloGraft Freedom No No
Ovation Cellular Repair Matrix Yes NoPalinGen Sport Flow No No
Can Amniotic Products Help Human MSCs?
Human bone marrow MSCs from several donors were seeded with various amniotic products to observe:
• Morphology• Proliferation-PicoGreen DNA Assay• Metabolic activity (Alamar Blue)• Reactive Oxygen Species (ROS)-A test of cell stress and
overall health
Complete Culture Medium (CCM)
hMSC Morphology (CCM has 16.5% PL)
PicoGreen Assay Results (SF vs PL)
Serum-Free
Med
ium
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
Complete C
ulture
Medium
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
0
100
200
300
400
500
dsDNA Quantification (PicoGreen)
Fluo
resc
ence
Inte
nsity
(a.u
.) Platelet LysateSerum-Free
***
***
*** p < 0.0005** p < 0.005* p < 0.05
If the amniotic tissues were causing the MSCs to proliferate more, then total DNA volume would be higher than CCM (Complete Culture Medium). This does happen when serum free (low growth factor) media is used. However, these effects are largely washed out when high growth factor culture media (platelet lysate) is used. This could indicate that while there are active growth factors in these products, but that these GF levels are likely less biologically active than those found in platelets.
AlamarBlue Assay Results (SF vs PL)
Complete C
ulture
Medium (S
F)
AmnioFix Sports
Med
BioD Restore
FloGraft F
reedom
Ovatio
n Repair
Matr
ix
Complete C
ulture
Medium
AmnioFix Sports
Med
BioD Restore
FloGraft F
reedom
Ovatio
n Repair
Matr
ix0
200
400
600
800
1000
Metabolic Activity (AlamarBlue)
Fluo
resc
ence
Inte
nsity
(a.u
.)
Platelet LysateSerum-Free
**
***
***
* *
*** p < 0.0005** p < 0.005* p < 0.05
*
If the amniotic tissues were helping the MSCs, then metabolic activity would be higher than CCM (Complete Culture Medium). Here it is generally lower.
AlamarBlue Assay Results (SF vs PL vs FBS)
Complete C
ulture
Medium (S
F)
AmnioFix Sports
Med
BioD Restore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
Complete C
ulture
Medium
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
Complete C
ulture
Medium (F
BS)
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
0
200
400
600
800
1000
Alamar BlueBase Media Comparison
Fluo
resc
ence
Inte
nsity
(a.u
.)
Bovine SerumPlatelet LysateSerum-Free
**
***
***
* *
**
****
*** p < 0.0005** p < 0.005* p < 0.05*
If the amniotic tissues were helping the MSCs, then metabolic activity would be higher than CCM (Complete Culture Medium). Here it is generally lower, only AmnioFix helps and only when bovine serum is used as a culture media.
ROS DCFDA Assay Results (SF vs PL vs FBS)
Serum-Free
Med
ium
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Repair
Matr
ix
Complete C
ulture
Medium
AmnioFix Sports
Med
BioD Restore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
100
M TBHP (+) C
ontrol
Complete C
ulture
Medium (F
BS)
AmnioFix Sports
Med
BioD Res
tore
FloGraft F
reedom
Ovatio
n Rep
air M
atrix
0
2,000
4,000
6,000
8,000
10,00020,000
40,000
ROS ActivityBase Media Comparison
Fluo
resc
ence
Inte
nsity
(a.u
.)
Bovine SerumPlatelet LysateSerum-Free
**
*** p < 0.0005** p < 0.005* p < 0.05
*
***
*
***
If the amniotic tissues were helping the MSCs, then ROS would be lower than CCM (Complete Culture Medium). Here it is generally the same or higher.
Conclusions:• The amniotic products tested:
• Don’t contain viable stem cells or other viable cells once they’re thawed per the manufacturer's recommendations.
• Do likely contain some active growth factors that can have a positive proliferation effect on MSCs, but those GFs in this experiment look like they are less effective than those found in platelets.
• Don’t generally help the metabolic activity of MSCs.• Don’t generally help MSCs show less oxidative stress.