Pancreatic cancers are among the most ominous, and among the most studied. Their complexities have provided ample material for a huge investigative effort, which is briefly surveyed in this review. Eradication by surgery has proven extremely difficult, and a successful chemotherapeutic approach is desperately needed. Treatment with "traditional" anticancer drugs, such as benchmark gemcitabine or the current standard-of-care FOLFIRINOX quaternary combination increase the mean overall survival by only a few months and often leads to chemoresistance. Much work is therefore currently devoted to potentiating our pharmacological weapons by accurate targeting and, in particular, by acting on the dense tumoral stroma, a distinctive feature of PDAC accounting for much of the therapeutic difficulty. We give an overview of recent developments, touching on the major aspects of PDAC physiology and biochemistry, currently-used and experimental drugs, and targeting technologies under development. A few papers are discussed in some detail to help provide a sense of how the field is moving.
Keywords: Pancreatic Ductal Adenocarcinoma (PDAC); Drug targeting; Stroma; Hypoxia; Peptides; Gemcitabine.
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