Tag: shield

A newly discovered fat “shield” that prevents natural killer cells from being destroyed by their own deadly biological weapons also allows some cancer cells to evade an immune system attack, a study at Columbia University has found. The findings, which may lead to new treatments for aggressive cancers, were reported August 3 in the journal

Asian nations were ramping up defences against a deadly viral epidemic Tuesday, sealing borders, shuttering public places and clamping down on visitors from China. Concern over the steadily expanding contagion, which has killed over 100 in China and sickened more than 4,500, is prompting an increasingly urgent push for protection. Hong Kong, which has eight