Halozyme Therapeutics Inc., of San Diego, named Matthew Hooper vice president of general counsel.

Helicos BioSciences, of Cambridge, Mass., appointed Ronald Lowy to its board.

ImmunoGen Inc., of Cambridge, Mass., added Richard Wallace to its board.

InteKrin Therapeutics Inc., of Los Altos, Calif., named Alex DePaoli chief medical officer.

Interleukin Genetics, of Waltham, Mass., named Emad El-Omar, James Meigs and John Foreyt to its scientific advisory board.

ISTO Technologies Inc., of St. Louis, appointed Blake Miles vice president of sales.

Jennerex Inc., of San Francisco, named Robert Ingram special advisor to the chairman and to president and CEO, and named Marty Glick executive vice president of corporate strategy.