I am currently working in a Diabetes Transplant Unit, which is a research centre trying to find a cure to diabetes using Stem cells and liver cells. One of the major problem in this field of work is the ethical issues involved. It would be a great idea to look at the ethical issues encompassing the treatment of diabetes using stem cells. Consider the role of the ethical debate and its impact, positively and negatively, towards society and culture. Underpinning your PIP with your personal experience, and public knowledge from primary and secondary research, you can turn this into a relatively unique and original approach to a PIP topic.
I hope this helps.