Transforming cancer cells for long-term living with cancer: An inspiring new approach.

Cancer is the leading cause of human death and imposes a huge health burden. Currently, no matter what advanced therapeutic modalities or technologies are applied, it is still peculiarly rare for most cancers to be radically cured whereas therapy resistance and tumor recurrence are ever so common. The long-standing cytotoxic therapy is hard to achieve long-term tumor control, and produces side-effects or even promotes cancer progression. With growing understandings of tumor biology, we came to realize that it is possible to transform but not kill cancer cells to achieve long-term living with cancer, and directly altering cancer cells is a promising way. Remarkably, tissue microenvironment is involved in the fate determination of cancer cells. Of note, leveraging cell competition to combat malignant or therapy-resistant cells shows some therapeutic potentials. Furthermore, modulating tumor microenvironment to restore a normal state might help to transform cancer cells. Especially, reprogramming cancer-associated fibroblasts, and tumor-associated macrophages, or normalization of tumor vessel, tumor immune microenvironment, and tumor extracellular matrix or their combinations, et al., revealed some long-term therapeutic benefits. Despite the massive challenges ahead, it would be possible to transform cancer cells for long-term cancer control and living with cancer longevously. The related basic researches and corresponding therapeutic strategies are also ongoing.