PMID- 29146887 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200929 IS - 2049-3614 (Print) IS - 2049-3614 (Electronic) IS - 2049-3614 (Linking) VI - 7 IP - 1 DP - 2018 Jan TI - Targeted therapy of gastroenteropancreatic neuroendocrine tumours: preclinical strategies and future targets. PG - R1-R25 LID - 10.1530/EC-17-0286 [doi] AB - Molecular targeted therapy of advanced neuroendocrine tumours (NETs) of the gastroenteropancreatic (GEP) system currently encompasses approved therapy with the mammalian target of rapamycin (mTOR) inhibitor everolimus and the multi-tyrosinkinase inhibitor sunitinib. However, clinical efficacy of these treatment strategies is limited by low objective response rates and limited progression-free survival due to tumour resistance. Further novel strategies for molecular targeted therapy of NETs of the GEP system are needed. This paper reviews preclinical research models and signalling pathways in NETs of the GEP system. Preclinical and early clinical data on putative novel targets for molecular targeted therapy of NETs of the GEP system are discussed, including PI3K, Akt, mTORC1/mTORC2, GSK3, c-Met, Ras-Raf-MEK-ERK, embryogenic pathways (Hedgehog, Notch, Wnt/beta-catenin, TGF-beta signalling and SMAD proteins), tumour suppressors and cell cycle regulators (p53, cyclin-dependent kinases (CDKs) CDK4/6, CDK inhibitor p27, retinoblastoma protein (Rb)), heat shock protein HSP90, Aurora kinase, Src kinase family, focal adhesion kinase and epigenetic modulation by histone deacetylase inhibitors. CI - (c) 2018 The authors. FAU - Aristizabal Prada, E T AU - Aristizabal Prada ET AD - Department of Internal Medicine IVCampus Grosshadern, University-Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany. FAU - Auernhammer, C J AU - Auernhammer CJ AD - Department of Internal Medicine IVCampus Grosshadern, University-Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany christoph.auernhammer@med.uni-muenchen.de. LA - eng PT - Journal Article PT - Review DEP - 20171116 PL - England TA - Endocr Connect JT - Endocrine connections JID - 101598413 PMC - PMC5754510 OTO - NOTNLM OT - neuroendocrine tumours OT - targeted therapy EDAT- 2017/11/18 06:00 MHDA- 2017/11/18 06:01 PMCR- 2017/11/16 CRDT- 2017/11/18 06:00 PHST- 2017/10/02 00:00 [received] PHST- 2017/11/16 00:00 [accepted] PHST- 2017/11/18 06:00 [pubmed] PHST- 2017/11/18 06:01 [medline] PHST- 2017/11/18 06:00 [entrez] PHST- 2017/11/16 00:00 [pmc-release] AID - EC-17-0286 [pii] AID - EC170286 [pii] AID - 10.1530/EC-17-0286 [doi] PST - ppublish SO - Endocr Connect. 2018 Jan;7(1):R1-R25. doi: 10.1530/EC-17-0286. Epub 2017 Nov 16.