LASP1 and breast cancer: An effect of LASP1 on secretory processes has already been observed for secretion of hydrochloric acid in gastric parietal cells, melanin budding from epidermal melanocytes, matrix metalloprotease release from breast cancer cells32, 33, 34 and a direct LASP1 influence on F‐actin‐dynamin vesicle budding is discussed33, 34—a process also facilitating cytokine release.39