Human Tisue Act 2004
And yet people who have had tissue samples taken for medical research get protection via the Human Tissue Act, and there is outcry when it was revealed that some Sellafield workers had their organs checked for radiation issues.
Extract from Notes on the Act - see mention of "cells":
"... Part 1 is about consent. It sets out the requirement to obtain appropriate consent to carry out activities regulated under the Act: storage and use of whole bodies, removal, storage and use of human material (organs, tissues and cells) from the bodies of deceased persons, and storage and use of material from living people, for purposes set out in Schedule 1. ..."