Researchers describe cell-in-cell phenomena in which one cell engulfs and sometimes consumes another. The study shows that cases of this behavior, including cell cannibalism, are widespread across the tree of life. The findings challenge the common perception that cell-in-cell events are largely restricted to cancer cells. Rather, these events appear to be common across diverse organisms, from single-celled amoebas to complex multicellular animals.
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In a new review paper, Carlo Maley and Arizona State University colleagues describe cell-in-cell phenomena in which one cell engulfs and sometimes consumes another. The study shows that cases of this behavior, including cell cannibalism, are widespread across the tree of life.
Cancers arise from mutations in cellular DNA, so it stands to reason species with more cells or with longer lifespans and more cell divisions should have higher cancer rates.A new study in the journal Nature shows that relationship doesn't hold up in nature. The key lay in looking beyond the two species scientists have the most cancer data about: humans and dogs.