Scientists are searching the seas for cancer drugs.

摘要

Some cling to rocky shores and piers. Others spend their lives glued to coral reefs or buried within the sands of the ocean floors.But, wherever they live, there is increasing evidence that many ocean organisms-including sponges, sea squirts, and microbes-produce potent chemicals that may be lethal to cancer cells. With seven marine-derived drugs now in clinical trials and others on the way, ocean products may be outstripping land-based plants as promising sources of potential cancer drugs.