By Jonathan Stempel NEW YORK (Reuters) -Martin Shkreli, known for once hiking the price of a life-saving drug more than 4,000%, cannot return to the pharmaceutical industry after a federal appeals court on Tuesday upheld his lifetime ban. A three-judge panel of the 2nd U.S. Circuit Court of Appeals in Manhattan said a lower court judge acted properly in imposing the ban and ordering Shkreli to repay $64.6 million because of his antitrust violations. The case had been brought by the U.S. Federal Trade Commission (FTC), joined by New York, California, Illinois, North Carolina, Ohio, Pennsylvania…