It also questioned how transplant recipients could be stopped from donating blood or organs to other humans.
But LCT's medical director, Professor Bob Elliott, who carried out the original research, and actually injected pig cells into people in 1996 and 1997, recently said further delays would have the same effect on the company as a rejection.
"We can't wait around any longer really, we've got to move."
LCT has said it can limit risks by using tissues from piglets in a breeding line said to have been isolated from other pigs for over 150 years on the Auckland Islands.
According to Elliott, a group of Russians injected with New Zealand pig cells last year showed reductions in daily insulin requirements ranging from 23 percent to as much as 100 percent, and had good control of blood glucose levels in four out of five patients.
Source-AFP
RAS/S