Original title: Quantifying the effect of phenotype on clustering behaviour in melanoma: from monoculture to co-culture
Nathan Schofield, Richard White, Ruth Baker, Helen Byrne · April 2026
Melanoma is an aggressive skin cancer that becomes far more dangerous if it spreads. Early on, cancer cells often gather into clusters that help the disease spread, but scientists do not fully understand what drives this grouping. Researchers built a mathematical model based on rules for how cells stick together, break apart, and multiply. They used this model alongside video microscope data of two melanoma cell types: growing cells and invasive spreading cells. The model revealed that invasive cells stick together into groups at nearly threefold the rate of proliferative cells. Meanwhile, proliferative cells divide slightly faster. When both cell types mix together in a co-culture, the invasive cells still dominate how the clusters stick together. However, mixing the two types also boosts the overall cell division rate, showing that having both cell types helps the cancer multiply faster.
Imagine you are at a party with two kinds of people: those who love joining big groups and those who prefer small chats or staying alone. Normally you might guess the social ones form crowds faster. But you also notice that when both types are mixed, the quiet ones somehow make the group grow even faster than expected. Here, the social ones are invasive melanoma cells and the quiet ones are proliferative melanoma cells; the math model shows that invasive cells join clusters three times faster alone, and in a mix, their influence dominates cluster formation while boosting overall growth.
Melanoma becomes deadly when it spreads. Clusters of cells help it spread, but different cell types act differently. This work gives specific numbers on how fast invasive and proliferative cells form clusters, which could help doctors predict which tumors are more dangerous and choose treatments that target cluster formation.
The abstract notes the co-culture results are preliminary and based on in vitro experiments. Only two melanoma phenotypes were studied, and the model has not been tested in living tissue. Real tumors contain many more cell types and a complex environment that may affect clustering differently.
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Quantifying the effect of phenotype on clustering behaviour in melanoma: from monoculture to co-culture — Nathan Schofield, Richard White, Ruth Baker et al.
Abstract licence: CC0
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.