The liver is the most regenerative of organs in mammals, capable of regrowing large amounts of lost tissue following injury. Its strategy for regrowth is somewhat different from that of other tissues, and somewhat different again from the mechanisms employed by species capable of proficient regeneration, such as salamanders. Evolution has produced many approaches to growth and regrowth, it seems. It may or may not be the case that researchers can find ways to make other organs behave more like the liver. I think it is far too early to say just how challenging a proposition this might be; even were there compelling mechanisms in hand and being worked on, that would be a tough prediction to make.
Meanwhile, investigative research continues. In the work noted here, researchers uncover a role for shifts in alternative splicing in liver regeneration. Alternative splicing allows for the production of different proteins from the same genetic blueprint, and is a complex enough epicycle atop all of the other complexity of cellular biochemistry to remain comparatively poorly explored in most specific cases. The researchers tie their findings to the Hippo signaling pathway, something that has attracted attention of late in the