“…differential equations) can be aided by computational approaches and bioinformatics tools often rely upon novel or existing mathematical analyses for their implementation. The breadth of modeling approaches and informatics tools in the field of Systems Biology (applied to cancer, the immune system, or both) is too large to review here and has been discussed elsewhere ( Germain et al, 2011 ; Altrock et al, 2015 ; Meyer and Heiser, 2019 ; Machado et al, 2011 ; Norton et al, 2019 ; Woelke et al, 2010 ; Stuart and Satija, 2019 ; Materi and Wishart, 2007 ). Many modeling approaches, such as Petri Nets ( Petri, 1962 ; Sackmann et al, 2006 ; Koch, 2015 ) and Boolean Networks ( Thomas, 1973 ; Saez-Rodriguez et al, 2007 ; Mai and Liu, 2009 ; Stoll et al, 2012 ), have been used extensively to model regulatory and signaling networks within cells ( Vieira and Vera-Licona, 2019 ).…”