UPDATE SEPT. 12: Imvax, which just raised $40 million and hired ex-Spark Therapeutics exec John P. Furey as CEO, is building a lab for its new brain cancer vaccine -- not at the University City Science Center in brainy West Philly, nor at one of those county-backed suburban lab centers -- but in Philadelphia’s Old City, at the Curtis Building, across Sixth Street from Independence Hall and the Liberty Bell, and upstairs from Louis Tiffany’s landmark Dream Garden stained-glass mural.