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Scratch test: A) MCF-10A, B) MCF-7, C) MDA-MB231 without any miR-treatment are before and D) MCF-10A, E) MCF-7, F) MDA-MB231 are after performing a scratch - a vertical line along a diameter of a well was ticked by a tip. This distance between two edges at zero time (D, E and F) are presupposed as a 100%. G) MCF-10A, H) MCF-7 and I) MDA-MB231 are 24 hr after performing the scratch. J) The scratch chart (*P<0.05)
