Gene Therapy for Cancer

The possibility of treating cancer, a disease frequently defined by
genetic defects, by introducing genes that target these very
alterations has generated tremendous enthusiasm. This enthusiasm,
however, has been tempered by an increasing number of obstacles to
successful therapy, including vector systems that do not reach systemic
metastases, therapeutic genes with redundant mechanisms allowing for
cellular resistance, and toxicities in clinical trials that result in
premature closure. The three comprehensive sections of this volume
present currently available cancer gene therapy techniques, with
specific attention to these trouble spots. Part I describes the various
aspects of gene delivery including vehicles, or vectors, and their
respective characteristics and production methods. In Part II, the
contributors discuss strategies and targets for the treatment of
cancer, including methods for cell-death therapies, correction of
underlying genetic defects at the molecular level, and activation of
the immune system or tumor microenvironment. The contributors provide a
succinct framework for understanding the basic underlying oncogenic
changes, which encourages the development of vectors engineered to
exploit these gene mutations through selective spread of the vector in
tumor cells with the specific changes. Finally, in Part III, experts in
clinical gene therapy trials discuss the difficulties inherent in
bringing gene therapy treatment for cancer to the clinic, and principal
investigators present gene therapy approaches in the clinical testing
stage and the results that have reached the stage of clinical
testing.of these trials.