Physical behavior reveals aggressive cancer cells in a simple new approach

A new approach to identifying aggressive cancer cells focuses not on their genetic makeup, but on their physical behavior. Researchers at the Hebrew University of Jerusalem have developed a method to distinguish between dangerous and less harmful cells by observing how they interact with specially textured surfaces. This innovation offers a potentially faster, more affordable, and more accurate way to assess cancer’s potential to spread.

Watching Cancer Cells Reveal Their True Nature

Traditionally, cancer cells are classified using molecular and genetic tests. However, these methods can be costly, time-consuming, and may not always accurately reflect a cell’s true danger. Aggressive cancer cells, those capable of metastasis, can appear similar to less harmful cells under standard laboratory conditions.

The research team, led by PhD student Chalom Zemmour under the mentorship of Prof. Ofra Benny from the School of Pharmacy at the Hebrew University, took a different approach. Instead of focusing on what molecules cancer cells express, they asked how cancer cells behave physically when interacting with their environment.

To answer this question, the team created surfaces patterned with microscopic plastic beads – nano and micro topographies thousands of times smaller than a grain of sand. When cancer cells are placed on these surfaces, their behavior differs depending on their aggressiveness.

More aggressive cancer cells grip the surface more strongly, swallow more of the microscopic particles, and stretch and wrap themselves around the tiny features. Less aggressive cells behave very differently, differences undetectable on ordinary flat lab surfaces.

A New Window into Metastasis

The study also provided new insights into metastasis, the process by which cancer spreads. The specially designed surfaces were able to differentiate between cells at varying stages of metastatic potential. Researchers observed that cancer cells temporarily lose their ability to strongly adhere after leaving the primary tumor, potentially aiding their travel through the body, before regaining strong adhesion upon reaching a new site.

“This tells us that aggressiveness is not a fixed trait and we can have a sensitive technology to measure it,” explains Prof. Benny. “It’s a functional state that can be revealed through physical behavior, not just molecular signatures.”

Simple, Accessible, and Potentially Clinical

A key advantage of this new method is its simplicity. It doesn’t require dyes, labels, or complex genetic analysis. The surfaces can be produced using standard laboratory techniques and are compatible with existing imaging and molecular tests.

This simplicity suggests the technology could eventually be adapted for rapid screening of cancer cell aggressiveness, research on metastasis and tumor progression, and even drug testing and personalized cancer treatment.

Rethinking How We Identify Dangerous Cancer

The study highlights a growing trend in cancer research – a move away from purely molecular analysis toward functional and mechanical characteristics of cells. As Prof. Benny states, “Our work shows that how cancer cells push, pull, and grip their surroundings can tell us a great deal about how dangerous they are. This opens a new path for cancer diagnostics that is both powerful and surprisingly simple.”

Frequently Asked Questions

How is this new method different from current cancer cell classification techniques?

Current techniques rely on analyzing genes or chemical markers. This new method focuses on how cancer cells physically behave when interacting with a textured surface.

What does the study reveal about metastasis?

The study found that cancer cells change their adhesion strength during metastasis, losing it temporarily to travel and regaining it when reaching a new site.

Is this technology ready for use in clinics?

The technology is not yet ready for clinical use, but the simplicity of the method suggests it could eventually be adapted for rapid screening, research, and drug testing.

As research continues, could a focus on the physical characteristics of cancer cells lead to earlier and more accurate diagnoses?