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Updated: May 17, 2026

Human Neuroendocrine Tumor Cell Lines as a Three-Dimensional Model for the Study of Human Neuroendocrine Tumor Therapy
Published on: August 14, 2012
New drugs in the therapy of neuroendocrine tumors
S Grozinsky-Glasberg1, D J Gross
1Neuroendocrine Tumor Unit, Endocrinology and Metabolism Service, Hadassah-Hebrew University Hospital, Jerusalem, Israel. simonag@hadassah.org.il
Abstract:
Neuroendocrine tumors (NET) are a rare and heterogeneous group of neoplasms of a relatively indolent nature whose incidence and prevalence are increasing. Despite the advances made in the field of NET over the past years, these tumors eventually progress to metastatic disease in most of the patients, with a fatal outcome in the majority. Traditional cytotoxic agents remain of limited efficacy; however, recently, a better understanding of molecular pathways has provided clues to potential molecular targets for new therapeutic strategies. Somatostatin analogs are well known to be useful for the control of symptoms in functioning tumors, and it was recently demonstrated that they can inhibit tumor progression in certain disease settings. Moreover, the recently published randomized trials with the multi-TKI sunitinib and with the mTOR-inhibitor everolimus have demonstrated, for the first time, their ability to positively impact the natural history of pancreatic NET (PNET). In this short review, we will discuss available data on newer molecular targeted agents for the treatment of advanced well-differentiated gastro-entero- pancreatic NET (GEP-NET). A possible algorithm for the use of these treatments in the context of the extreme heterogeneity of GEP-NET presentation will be proposed.
Insights
Neuroendocrine tumors (NET) are increasing, often becoming metastatic. Newer targeted therapies, including somatostatin analogs, sunitinib, and everolimus, show promise in treating advanced gastro-entero-pancreatic NET (GEP-NET).
Area of Science:
- Oncology
- Molecular Biology
- Gastroenterology
Background:
- Neuroendocrine tumors (NET) are rare, increasing neoplasms with a tendency to metastasize.
- Traditional treatments for NET have limited efficacy, necessitating novel therapeutic strategies.
- Advances in understanding molecular pathways offer potential targets for NET treatment.
Purpose of the Study:
- To review newer molecular targeted agents for advanced well-differentiated gastro-entero-pancreatic NET (GEP-NET).
- To discuss the efficacy of somatostatin analogs, sunitinib, and everolimus in GEP-NET.
- To propose a treatment algorithm for the heterogeneous presentations of GEP-NET.
Main Methods:
- Review of recent randomized trials and available data on molecular targeted agents.
- Analysis of therapeutic strategies for advanced well-differentiated GEP-NET.
- Synthesis of information to develop a treatment algorithm.
Main Results:
- Somatostatin analogs can inhibit tumor progression in certain NET settings.
- Multi-TKI sunitinib and mTOR-inhibitor everolimus have demonstrated positive impacts on pancreatic NET (PNET) natural history.
- Newer molecular targeted agents offer improved treatment options for advanced GEP-NET.
Conclusions:
- Targeted therapies represent a significant advancement in managing advanced GEP-NET.
- Personalized treatment algorithms are needed due to the heterogeneity of GEP-NET.
- Further research into molecular pathways will likely yield more effective NET treatments.
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