UK Stocks-Factors to watch on Sept 11

Sept 11 (Reuters) – Britain’s FTSE 100 index is seen opening up 28points at 7,405 on Monday, according to financial bookmakers.* AstraZeneca: Two AstraZeneca drugs tackling lung cancer indifferent ways delivered encouraging results on Saturday, helping the Britishgroup offset July’s big clinical trial setback in the disease. * SHELL: Shell’s Nigerian business has signed a $300 mln deal withShoreline Energy to develop gas pipeline infrastructure in the country,Financial Ti