This research examined reishi mushroom (Ganoderma lucidum), a traditional medicinal fungus, to find rare compounds called depsidones with potential cancer-fighting properties. Scientists extracted these compounds using different solvents and tested them against four types of cancer cells (liver, colon, breast, and lung cancer), finding that they successfully killed cancer cells while being safe to normal cells. Using advanced chemical analysis and computer modeling, they identified nine new depsidone compounds in reishi and showed how these compounds could bind to cancer-related proteins to stop tumor growth.