Development and cancer: at the crossroads of Nodal and Notch signaling

Area of Science:

• Oncology
• Developmental Biology
• Stem Cell Biology

Background:

• Aggressive tumor cells exhibit plasticity and multipotency, resembling embryonic stem cells.
• The aberrant activation of embryonic signaling pathways, due to absent regulatory checkpoints, contributes to tumor cell plasticity.
• Understanding the interplay between developmental pathways in cancer is crucial for novel therapeutic approaches.

Purpose of the Study:

• To explore the molecular cross-talk between the Nodal and Notch signaling pathways in aggressive tumor cells.
• To investigate the role of these pathways in conferring plasticity to cancer cells.
• To identify potential therapeutic strategies targeting the unique plasticity of aggressive tumors.

Main Methods:

• Analysis of molecular cross-talk between Nodal and Notch signaling pathways.
• Investigation of aberrant activation of embryonic signaling pathways in tumor cells.
• Characterization of the plastic, multipotent phenotype of aggressive tumor cells.

Main Results:

• Aggressive tumor cells share similarities with embryonic stem cells, including a plastic phenotype.
• The lack of regulatory checkpoints in tumor cells facilitates the aberrant activation of embryonic signaling pathways.
• Evidence suggests molecular cross-talk between Nodal and Notch pathways in aggressive tumors.

Conclusions:

• The plasticity of aggressive tumor cells is linked to aberrant embryonic signaling.
• Targeting the cross-talk between Nodal and Notch pathways presents a promising therapeutic avenue.
• This research offers insights into the re-emergence of developmental pathways during tumor progression.