“…Old, R. Schreiber, et al [132] 2005 Memory T-cells in colorectal tumors shown to predict clinical outcome, reported by F. Pagès, A. Berger, M. Camus et al [133] 2010 First autologous cell-based cancer vaccine (sipuleucel-T) is approved by the FDA for the treatment of metastatic, asymptomatic stage IV prostate cancer [43,134] 2010 First successful use of gene-edited T-cells for the treatment of CD19+ hematologic malignancies in humans, reported by W. Qasim, H. Zhan, S. Samarasinghe et al [135] 2011 Anti-CTLA-4 (ipilimumab), is the first inhibitory checkpoint inhibitor (ICI) approved by the FDA for treatment of stage IV melanoma [136] 2012 Discovery of the CRISPR/Cas9 system, a simpler and more efficient method of genome editing, reported byJ.A. Doudna & E. Charpentier, with M. Jinek, K. Chylinski, I. Fonfara, & M. Hauer [49] 2013 [50] 2016 A second class of ICIs, anti-PD-1 (pembrolizumab), is approved for the treatment of melanoma [137] 2016 First characterization of the role of dendritic cell CTLA-4 in Th-1 immunity, reported by M. Halpert, V.Konduri, D. Liang et al [138] 2016 A third class of ICIs, PD-L1(atezolizumab), is approved for treatment of bladder cancer [139] 2016 First test in humans of CRISPR gene-editing technique for CAR T-cell therapy [51] 2017 Phase I/IIa study of an inhibitor of indoleamine 2,3-dioxygenase (IDO1), a non-membrane-attached enzyme with a checkpoint inhibitor function, shows promise [95] Not all of the events listed are discussed in the text, but all are referenced to the pertinent literature classically considered to be comprised of the innate and adaptive arms, although this is a simplification since these arms have overlapping functions and are intimately related.…”