Questions for experts

If anyone has extensive knowledge about genetics, perhaps you can answer some of these questions:

Now that the MVK gene has been identified, what is the next step towards developing a gene therapy for DSAP?

Do the two Chinese studies provide enough information to proceed with gene therapy trials?

The study says that the MVK gene discovery is just a "step toward discovering the genetic pathogenesis of DSAP, and sheds light on its further molecular diagnosis and treatment." What additional research needs to be done? For example, in patients who have the MVK mutation, must nucleotide polymorphism(s) be identified, or in theory, could the entire MVK gene be replaced?

How much might the Chinese genetic studies cost?

Who is funding these Chinese studies and why?