QUOTE(anna @ Jun 16 2007, 10:03 AM)

Transformative Growth Factor Beta 3 (TGF B3) is the active ingredient in Renovo's line of treatment. Scar tissue, whether it is the thin membrane that stops depressed scars from filling in or the thick fibrous kind in keloids, is caused by the excess of Transformative Growth Factor Beta 1 (TGF B1). I've been following Renovo for about five years in the hope that this would ultimately be the answer, and it will definitely help. However, until you can completely suppress TGFB1 the body will try to create a seal to a wound and that seal is scar tissue.
Great post Anna, thanks for your input. I totally agree with you, a lot of hype, claims and money have been put into this product making a lot of us people with scars incredibly excited. But I too was a little disappointed to have seen their results from the previous phase I and II trials that were supposed to show the products' ability of scarless healing. The pictures of the effectiveness of Juvista gave the impression that the drug would only improve the scars ie make them less physically noticeable as a result of the drug inhibiting some scar tissue growth, however there would still be some unevenly woven fibroblast-type tissue present. However, remember that the photos are quite magnified so if view with the human eye at arm's length distance, the improvement would seem better.
But I guess this can't be too disheartening since Renovo is still experimenting with the dosage, type of scarring to operate on and which part of the body responds the best. Apparently the skin on the face heals more efficiently than other parts of the body so that could be a bonus. I have attached SIX pictures produced by Renovo showing some of the results of the trials. There is clearly a large variation in terms of the efficacy of the product but this is probably due to the variables I have already suggested so far.
One thing that really confuses me about this company's products is the formulation of Juvista and their other product Juvidex. Research illustrates why adults scar and embryos don't:
..............FETAL SCAR-FREE HEALING...............ADULT HEALING WITH SCARRING
TGF1.............low/absent.............................................high
TGF2.............low/absent.............................................high
TGF3....................high................................................low
So you would think, given the above evidence, the best way to create a product that prevents scars in humans would be to replicate what happens in fetus' ie create a product that inhibits the production of TGF1+2 AND include a high amount of TGF3.
HOWEVER, Renovo has not done this; instead, Juvista only includes TGF3, and their other product Juvidex includes only a TGF1 inhibitor. So when you cut yourself and apply Juvista you will get the benefit of having TGF3 applied to the wound, but the drug does NOTHING to do the TGF1+2 substances which we don't want as they are likely to influence scar production and provide the unwanted inflammatory response. On the other hand, if you only applied Juvidex to a cut you would only benefit from inhibiting JUST TGF1 whilst TGF2 is still left to produce; at the same time the drug does nothing about the low level of TGF3. This might slightly explain why their pictures aren't that impressive.
So, to me, something seems slightly flawed. Both drugs, even combined, are not replicating what occurs in a fetus. I really wish I knew the reason for this as, it would seem from the theory, Renovo would have MUCH better results if they made a product that injected TGF3 in the wound AND prevent TGF1+TGF2 production....
God knows why this hasn't been explained in their presentations...But yes, there is an incredible amount of research going on into scarless healing. I am confident we will find an excellent solution to treating and preventing scar tissue growth, the question is how long will it take....