Targeting of drugs via carrier systems to sites in the body in need of
pharmacologic intervention is a rapidly growing area of research in the
treatment or prevention of disease. It has evolved from the need to
preferentially deliver drugs, enzymes, vitamins, hormones, antigens,
etc. to target cells and organs so as to avoid toxicity, waste of drugs
through premature secretion or inactivation and at the same time render
treatment more convenient and cost-effective. A wide assortment of
naturally occ- urring or semi-synthetic drug carriers (e. g. antibodies,
glycoproteins, lectins, peptide hormones, cells and liposomes), their
inter action with relevant receptors and mediation of optimal
pharmacological action were discussed in the two previous NATO Advanced
Studies Institutes (ASI) of this series, "Targeting of Drugs" and
"Receptor-Mediated Targeting of Drugs", the proceedings of wh ich were
published by Plenum in 1982 and 1984 respectively. This book contains
the proceedings of the 3rd NATO ASI "Targeting of Drugs with Synthetic
Systems" held as be fore at Cape Sounion, Greece during 24 June-5 July
1985. It deals mostly with man-made carriers such as a variety of
polymers, matrices, liposomes and other colloidal micro- particles. The
twenty chapters discuss the interaction of such carriers with the
biological milieu, approaches to bypass the reticuloendothelial system
(or, when needed, take advantage of its interception of carriers to
optimally deliver drugs to phagocytes) and ways to improve delivery to
specific cells, often with the help of carrier-linked ligands.