EXHIBIT 21.1 LIST OF SUBSIDIARIES - -------------------------------------------------------------------------------- State or Other Jurisdiction Name of Incorporation - -------------------------------------------------------------------------------- Signal Pharmaceuticals, Inc. California Anthrogenesis Corp. New Jersey Celgene International, Inc. Delaware Celgene International SARL Switzerland Celgene Luxembourg Finance Company SARL Luxembourg Celgene UK Holdings, Limited United Kingdom Celgene UK Manufacturing, Limited United Kingdom Celgene UK Manufacturing II, Limited United Kingdom Celgene Edinburgh Finance United Kingdom Celgene Europe Ltd. United Kingdom