Gastroenteropancreatic neuroendocrine tumor cancer stem cells: do they exist?

Area of Science:

• Oncology
• Developmental Biology
• Molecular Biology

Background:

• Neuroendocrine tumors (NETs) are a diverse group of neoplasms with shared origins.
• Targeted therapies have improved NET treatment, but cures for advanced stages remain elusive.
• Cancer stem cells (CSCs) are implicated in various solid tumors, but their presence in NETs is under-investigated.

Purpose of the Study:

• To review the embryonic origins of NETs.
• To discuss the potential existence and role of gastroenteropancreatic neuroendocrine cancer stem cells (g-p NET-CSCs).
• To summarize evidence for active embryological pathways in NETs and their therapeutic implications.

Main Methods:

• Literature review of embryological pathways in NETs.
• Analysis of existing evidence for CSCs in solid tumors.
• Discussion of therapeutic strategies targeting CSCs.

Main Results:

• Evidence suggests active embryological pathways (Notch, Wnt-β-catenin, Hedgehog, TGF-β) are involved in NET development.
• The existence of g-p NET-CSCs is plausible, linked to these developmental pathways.
• Targeting CSCs shows promise in some cancers (medulloblastomas, basal cell carcinomas).

Conclusions:

• Embryonic pathways are active in NETs, suggesting a potential role for CSCs.
• The therapeutic value of CSC-targeting strategies in NETs requires further investigation.
• Understanding g-p NET-CSCs may lead to novel treatment approaches for advanced NETs.