CAMBRIDGE, Mass.--(BUSINESS WIRE)--Acceleron Pharma, Inc., a biopharmaceutical company developing novel therapeutics that modulate the growth of cells and tissues including red blood cells, bone, muscle and the vasculature today announced that it will participate as one of only a few private companies at the 2009 Morgan Stanley Global Healthcare Unplugged Conference on September 14, 2009. The conference will be held at the Grand Hyatt Hotel in New York City.