Additionally, many molecular and biological processes are also reported in patients with cancer, such as a cytokine storm, increased angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2) production, in addition to coagulopathy [8], which is a potential concern observed in a lot of cancer patients (Figure 1). Here, TMPRSS2 is linked to cancer.