ISTANBUL Chinese scientists have developed a pioneering cancer treatment that modifies tumors to resemble “pork,” effectively triggering the body’s immune system to attack them, according to a report by the South China Morning Post on Monday. The researchers have engineered tumors to mimic pig tissue, prompting the immune system to recognize them as foreign and launch a targeted attack using the same response that leads to organ transplant rejection. The study, published in Cell on Jan. 18,