A federal judge’s preliminary injunction that blocks funding for human embryonic stem cell research should not be put on hold while the U.S. Department of Justice challenges the decision on appeal, attorneys for two adult stem cell researchers said Tuesday in court papers.

The plaintiffs, including Drs. James Sherley and Theresa Deisher, won the injunction in August in the U.S. District Court for the District of Columbia. Justice attorneys want Chief Judge Royce Lamberth’s ruling stayed while the government fights the decision in the U.S. Court of Appeals for the D.C. Circuit. (Lamberth earlier denied the government’s request for a stay of his ruling.)