Inhibition of transforming growth factor‐β/Smad signaling improves regeneration of small‐for‐size rat liver grafts
Zhi Zhong, Shigeki Tsukada, Hasibur Rehman, Christopher J. Parsons, Tom P. Theruvath, Richard A. Rippe, David A. Brenner, John J. Lemasters – 26 January 2010 – Transforming growth factor‐β (TGF‐β) is a potent inhibitor of cell proliferation. This study investigated whether overexpression of Smad7, which blocks TGF‐β–induced activation of Smad2/3, could prevent the suppression of regeneration of small‐for‐size liver grafts. Rats were intravenously given adenoviruses (2 × 1010 pfu/rat) carrying the LacZ gene or the Smad7 gene (Ad‐Smad7) 3 days prior to liver harvesting.