Dear Louise,
in addition to the papers mentioned by Brenda, you may find some useful
information on phosphoinositide and sterol content in membranes in Nolta
et al. (1991) and Favard-Sereno et al (1981). In Sillo et al (2008) we
have described drastic changes in the expression of genes involved in
phospholipid and sterol metabolism during phagocytosis.
Salvo Bozzaro