SAN FRANCISCO (AFX) -- Light Sciences Oncology Inc. filed late Friday with the Securities and Exchange Commission to raise up to $86.3 million in an initial public offering. Cowen & Co. and Jefferies & Co. will lead the deal's underwriting. Light Sciences, a Snoqualmie, Wash.-based developer of cancer treatments, has applied to have its shares listed on the Nasdaq under the ticker symbol 'LSON.' This story was supplied by MarketWatch. For further information see www.marketwatch.com.