Underwater expedition by Florida-based team supports possible therapeutic use of bacterial toxins from sea squirts Researchers at a Florida university say bacterial toxins produced by tiny marine organisms they have studied in Antarctica could become an effective treatment for melanoma, the deadliest form of skin cancer. A team from the University of South Florida (USF) recently returned from a six-week expedition to one of the world’s remotest regions in which they collected samples of ascidians, invertebrates known as sea squirts that thrive in the icy waters. Continue reading...