@umbra21 - If you think that is strange, consider this. When the article mentions human tissue cell cultures they are almost certainly talking about HeLa cells.
HeLa cells come from a tissue sample taken from the tumor of a woman (Henrietta Lacks) in the 1960's, which have been growing without pause ever since.
Almost every example of human tissue grown in a lab comes from her original sample. The woman herself died decades ago, but her cells live on and are used to test huge amounts of drugs and chemicals.
I think that is one of the most bizarre things I've ever heard. What's sad about it is that she never knew about it, and her descendants have never had any kind of compensation, and for the most part live in poverty.