BETHESDA, Md.--(BUSINESS WIRE)--RegeneRx Biopharmaceuticals, Inc. (Amex:RGN) (www.regenerx.com) reported today that researchers at the Wayne State University School of Medicine and the Kresge Eye Institute in Detroit, Michigan, found that thymosin beta 4 (Tß4) increases MMP-1 levels in the cornea. MMPs, especially MMP-1, have an important role in the wound healing process as they are involved in cell motility (the movement of new cells to the wound site) and are an integral part of the complex wound healing cascade. Conversely, it has been shown that blocking MMPs inhibits the wound healing process.