Semaphorin signals tweaking the tumor microenvironment

Area of Science:

• Oncology
• Molecular Biology
• Cell Biology

Background:

• Solid tumors contain malignant and nonmalignant cells, creating a microenvironment influencing tumor behavior.
• Semaphorins are molecular signals crucial for cell migration in development and adulthood.
• Semaphorins and their receptors (plexins, neuropilins) are expressed by tumor cells, impacting tumor cell behavior and angiogenesis.

Purpose of the Study:

• To review current knowledge on the functional role of semaphorins in cancer progression.
• To highlight the emerging role of semaphorins in mediating crosstalk between tumor cells and stromal cells.

Main Methods:

• Literature review of existing research on semaphorins in cancer biology.
• Focus on semaphorin signaling in tumor cells, angiogenesis, and tumor-infiltrating stromal cells.

Main Results:

• Semaphorin signaling regulates tumor cell behavior and is important for tumor angiogenesis.
• Limited knowledge exists regarding semaphorin signaling in tumor-infiltrating stromal cells like leukocytes.

Conclusions:

• Semaphorins play a significant role in cancer progression.
• Further research is needed to understand the functional relevance of semaphorins in mediating tumor-stromal cell crosstalk.