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#cancer #tumor #molecularoncology What is a tumor? And how does this disease develop? What are the characteristics of cancer, or rather, of cancer cells? tumors are diseases in which genetics is involved, but no, mutations are not enough, the development of cancer is much more complex than that: for a tumor to be born, oncogenes need to be activated, that is, genes that promote cell proliferation, while tumor suppressors, such as p53 and Rb, are turned off. And then there is telomerase. And blood vessels? Angiogenesis must be reactivated. And the immune system! That also plays a role in the formation of tumors. So it is not easy to give a definition of tumor (or cancer). By the way, sometimes these two terms are used with a different meaning: cancer for a malignant tumor, the one capable of producing metastases and tumor for any type of tumor, whether benign or malignant. But today I will use them without any difference. And finally there is the formation of metastases, in which tumor cells undergo a complete rearrangement to migrate to a blood vessel. In fact, one almost never dies from the primary tumor (this is the name of the first tumor mass that forms) but often one dies because of metastases 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ☕ If you like my work and want to support me you can join the Laboratory https://it.tipeee.com/colazione/ ☕ or you can offer me a coffee (one-off donations) https://ko-fi.com/dna_a_colazione ????INSTAGRAM: / dna_a_colazione