English to Spanish Medical Medical (general) Kidney cancer

HOLA

Este texto habla del cáncer renal. Quisiera saber si es correcto traducir "cell cluster volumen" como "volumen del grupo de células" o si hay una traducción más adecuada:

Bioinformatic studies identified serum protein patterns predictive of response to sunitinib or sorafenib, while in vitro observations revealed differences between the protein kinase inhibitor sorafenib, which caused cell disintegration, and the mammalian target of rapamycin inhibitor everolimus, which reduced cell cluster volume, suggesting potential for combination therapy.

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