**4. Cancer: a leading cause of death**

Cancer is the leading cause of death worldwide [9]. It is a disorder, which has no standard treatment feasible for all. To treat cancer, chemotherapy, radiation, targeted drug delivery are standardized [12]. However, the matter of fact is that there are numerous cancer cell lines, which makes treatment a tedious process. As a basic fact, the structure and type of tumor line found in a person are often different for different people [80]. The cells multiply exponentially [9]. They are very invasive, and the process of extravasation goes hand in hand, which makes it even more miserable [57]. Studies show that the neoangiogenesis in these cancer cells is highly disorganized. It all is detected later [80]. In addition, by that time tumors would have invaded the primary site and even metastasized to the secondary site for invasion and development [3]. The technology and methodology we possess are not able to detect the growth at the earliest. The treatment and detection technology should increase its accuracy and should be able to detect to the earliest. That is why microalgae are combined with different technologies to treat malignancy [14]. The basic objective is to at least cease the process if it cannot be removed completely [80]. The area of marine chemotherapeutics is scarcely researched and if done it has sure that the cure of the disease lies on this planet and this land only [9]. **Figure 1** depicts the hallmarks of cancer.
