\begin{thebibliography}{10} \expandafter\ifx\csname url\endcsname\relax \def\url#1{\texttt{#1}}\fi \expandafter\ifx\csname urlprefix\endcsname\relax\def\urlprefix{URL }\fi \providecommand{\bibinfo}[2]{#2} \providecommand{\eprint}[2][]{\url{#2}} \bibitem{Fesnak2016} \bibinfo{author}{Fesnak, A.~D.}, \bibinfo{author}{June, C.~H.} \& \bibinfo{author}{Levine, B.~L.} \newblock \bibinfo{title}{Engineered t cells: the promise and challenges of cancer immunotherapy}. \newblock \emph{\bibinfo{journal}{Nature Reviews Cancer}} \textbf{\bibinfo{volume}{16}}, \bibinfo{pages}{566--581} (\bibinfo{year}{2016}). \bibitem{Rosenberg2015} \bibinfo{author}{Rosenberg, S.~A.} \& \bibinfo{author}{Restifo, N.~P.} \newblock \bibinfo{title}{Adoptive cell transfer as personalized immunotherapy for human cancer}. \newblock \emph{\bibinfo{journal}{Science}} \textbf{\bibinfo{volume}{348}}, \bibinfo{pages}{62--68} (\bibinfo{year}{2015}). \bibitem{Roddie2019} \bibinfo{author}{Roddie, C.}, \bibinfo{author}{O'Reilly, M.}, \bibinfo{author}{Pinto, J. D.~A.}, \bibinfo{author}{Vispute, K.} \& \bibinfo{author}{Lowdell, M.} \newblock \bibinfo{title}{Manufacturing chimeric antigen receptor t cells: issues and challenges}. \newblock \emph{\bibinfo{journal}{Cytotherapy}} (\bibinfo{year}{2019}). \bibitem{Dwarshuis2017} \bibinfo{author}{Dwarshuis, N.~J.}, \bibinfo{author}{Parratt, K.}, \bibinfo{author}{Santiago-Miranda, A.} \& \bibinfo{author}{Roy, K.} \newblock \bibinfo{title}{Cells as advanced therapeutics: State-of-the-art, challenges, and opportunities in large scale biomanufacturing of high-quality cells for adoptive immunotherapies}. \newblock \emph{\bibinfo{journal}{Advanced Drug Delivery Reviews}} \textbf{\bibinfo{volume}{114}}, \bibinfo{pages}{222--239} (\bibinfo{year}{2017}). \bibitem{Wang2016} \bibinfo{author}{Wang, X.} \& \bibinfo{author}{Rivi{\`{e}}re, I.} \newblock \bibinfo{title}{Clinical manufacturing of {CAR} t cells: foundation of a promising therapy}. \newblock \emph{\bibinfo{journal}{Molecular Therapy - Oncolytics}} \textbf{\bibinfo{volume}{3}}, \bibinfo{pages}{16015} (\bibinfo{year}{2016}). \bibitem{Piscopo2017} \bibinfo{author}{Piscopo, N.~J.} \emph{et~al.} \newblock \bibinfo{title}{Bioengineering solutions for manufacturing challenges in {CAR} t cells}. \newblock \emph{\bibinfo{journal}{Biotechnology Journal}} \textbf{\bibinfo{volume}{13}}, \bibinfo{pages}{1700095} (\bibinfo{year}{2017}). \bibitem{Bashour2015} \bibinfo{author}{Bashour, K.~T.} \emph{et~al.} \newblock \bibinfo{title}{Functional characterization of a t cell stimulation reagent for the production of therapeutic chimeric antigen receptor t cells}. \newblock \emph{\bibinfo{journal}{Blood}} \textbf{\bibinfo{volume}{126}}, \bibinfo{pages}{1901--1901} (\bibinfo{year}{2015}). \bibitem{Gendron2003} \bibinfo{author}{Gendron, S.}, \bibinfo{author}{Couture, J.} \& \bibinfo{author}{Aoudjit, F.} \newblock \bibinfo{title}{Integrin $\alpha$2$\beta$1inhibits fas-mediated apoptosis in t lymphocytes by protein phosphatase 2a-dependent activation of the {MAPK}/{ERK} pathway}. \newblock \emph{\bibinfo{journal}{Journal of Biological Chemistry}} \textbf{\bibinfo{volume}{278}}, \bibinfo{pages}{48633--48643} (\bibinfo{year}{2003}). \bibitem{Ohtani2008} \bibinfo{author}{Ohtani, O.} \& \bibinfo{author}{Ohtani, Y.} \newblock \bibinfo{title}{Structure and function of rat lymph nodes}. \newblock \emph{\bibinfo{journal}{Archives of Histology and Cytology}} \textbf{\bibinfo{volume}{71}}, \bibinfo{pages}{69--76} (\bibinfo{year}{2008}). \bibitem{Boisvert2007} \bibinfo{author}{Boisvert, M.}, \bibinfo{author}{Gendron, S.}, \bibinfo{author}{Chetoui, N.} \& \bibinfo{author}{Aoudjit, F.} \newblock \bibinfo{title}{Alpha2beta1 integrin signaling augments t cell receptor-dependent production of interferon-gamma in human t cells}. \newblock \emph{\bibinfo{journal}{Molecular Immunology}} \textbf{\bibinfo{volume}{44}}, \bibinfo{pages}{3732--3740} (\bibinfo{year}{2007}). \bibitem{Ben-Horin2004} \bibinfo{author}{Ben-Horin, S.} \& \bibinfo{author}{Bank, I.} \newblock \bibinfo{title}{The role of very late antigen-1 in immune-mediated inflammation}. \newblock \emph{\bibinfo{journal}{Clinical Immunology}} \textbf{\bibinfo{volume}{113}}, \bibinfo{pages}{119--129} (\bibinfo{year}{2004}). \bibitem{Forget2014} \bibinfo{author}{Forget, M.-A.} \emph{et~al.} \newblock \bibinfo{title}{Activation and propagation of tumor-infiltrating lymphocytes on clinical-grade designer artificial antigen-presenting cells for adoptive immunotherapy of melanoma}. \newblock \emph{\bibinfo{journal}{Journal of Immunotherapy}} \textbf{\bibinfo{volume}{37}}, \bibinfo{pages}{448--460} (\bibinfo{year}{2014}). \bibitem{Cheung2018} \bibinfo{author}{Cheung, A.~S.}, \bibinfo{author}{Zhang, D. K.~Y.}, \bibinfo{author}{Koshy, S.~T.} \& \bibinfo{author}{Mooney, D.~J.} \newblock \bibinfo{title}{Scaffolds that mimic antigen-presenting cells enable ex vivo expansion of primary {T} cells}. \newblock \emph{\bibinfo{journal}{Nature Biotechnology}} \textbf{\bibinfo{volume}{36}}, \bibinfo{pages}{160--169} (\bibinfo{year}{2018}). \bibitem{Rio2018} \bibinfo{author}{del R{\'{\i}}o, E.~P.}, \bibinfo{author}{Miguel, M.~M.}, \bibinfo{author}{Veciana, J.}, \bibinfo{author}{Ratera, I.} \& \bibinfo{author}{Guasch, J.} \newblock \bibinfo{title}{Artificial 3d culture systems for t cell expansion}. \newblock \emph{\bibinfo{journal}{{ACS} Omega}} \textbf{\bibinfo{volume}{3}}, \bibinfo{pages}{5273--5280} (\bibinfo{year}{2018}). \bibitem{Delalat2017} \bibinfo{author}{Delalat, B.} \emph{et~al.} \newblock \bibinfo{title}{{3D printed lattices as an activation and expansion platform for T cell therapy}}. \newblock \emph{\bibinfo{journal}{Biomaterials}} \textbf{\bibinfo{volume}{140}}, \bibinfo{pages}{58--68} (\bibinfo{year}{2017}). \bibitem{meyer15_immun} \bibinfo{author}{Meyer, R.~A.} \emph{et~al.} \newblock \bibinfo{title}{Immunoengineering: Biodegradable nanoellipsoidal artificial antigen presenting cells for antigen specific t-cell activation (small 13/2015)}. \newblock \emph{\bibinfo{journal}{Small}} \textbf{\bibinfo{volume}{11}}, \bibinfo{pages}{1612--1612} (\bibinfo{year}{2015}). \bibitem{Lambert2017} \bibinfo{author}{Lambert, L.~H.} \emph{et~al.} \newblock \bibinfo{title}{{Improving T Cell Expansion with a Soft Touch.}} \newblock \emph{\bibinfo{journal}{Nano letters}} \textbf{\bibinfo{volume}{17}}, \bibinfo{pages}{821--826} (\bibinfo{year}{2017}). \bibitem{Xu2014} \bibinfo{author}{Xu, Y.} \emph{et~al.} \newblock \bibinfo{title}{Closely related t-memory stem cells correlate with in vivo expansion of car.cd19-t cells and are preserved by il-7 and il-15.} \newblock \emph{\bibinfo{journal}{Blood}} \textbf{\bibinfo{volume}{123}}, \bibinfo{pages}{3750--3759} (\bibinfo{year}{2014}). \bibitem{Fraietta2018} \bibinfo{author}{Fraietta, J.~A.} \emph{et~al.} \newblock \bibinfo{title}{Determinants of response and resistance to {CD}19 chimeric antigen receptor ({CAR}) t cell therapy of chronic lymphocytic leukemia}. \newblock \emph{\bibinfo{journal}{Nature Medicine}} \textbf{\bibinfo{volume}{24}}, \bibinfo{pages}{563--571} (\bibinfo{year}{2018}). \bibitem{Gattinoni2011} \bibinfo{author}{Gattinoni, L.} \emph{et~al.} \newblock \bibinfo{title}{A human memory t cell subset with stem cell{\textendash}like properties}. \newblock \emph{\bibinfo{journal}{Nature Medicine}} \textbf{\bibinfo{volume}{17}}, \bibinfo{pages}{1290--1297} (\bibinfo{year}{2011}). \bibitem{Gattinoni2012} \bibinfo{author}{Gattinoni, L.}, \bibinfo{author}{Klebanoff, C.~A.} \& \bibinfo{author}{Restifo, N.~P.} \newblock \bibinfo{title}{{Paths to stemness: building the ultimate antitumour T cell.}} \newblock \emph{\bibinfo{journal}{Nature reviews. Cancer}} \textbf{\bibinfo{volume}{12}}, \bibinfo{pages}{671--84} (\bibinfo{year}{2012}). \bibitem{Wang2018} \bibinfo{author}{Wang, D.} \emph{et~al.} \newblock \bibinfo{title}{Glioblastoma-targeted {CD}4+ {CAR} t cells mediate superior antitumor activity}. \newblock \emph{\bibinfo{journal}{{JCI} Insight}} \textbf{\bibinfo{volume}{3}} (\bibinfo{year}{2018}). \bibitem{Yang2017} \bibinfo{author}{Yang, Y.} \emph{et~al.} \newblock \bibinfo{title}{{TCR} engagement negatively affects {CD}8 but not {CD}4 {CAR} t cell expansion and leukemic clearance}. \newblock \emph{\bibinfo{journal}{Science Translational Medicine}} \textbf{\bibinfo{volume}{9}}, \bibinfo{pages}{eaag1209} (\bibinfo{year}{2017}). \bibitem{Heathman2015} \bibinfo{author}{Heathman, T. R.~J.} \emph{et~al.} \newblock \bibinfo{title}{Expansion, harvest and cryopreservation of human mesenchymal stem cells in a serum-free microcarrier process}. \newblock \emph{\bibinfo{journal}{Biotechnology and Bioengineering}} \textbf{\bibinfo{volume}{112}}, \bibinfo{pages}{1696--1707} (\bibinfo{year}{2015}). \bibitem{Sart2011} \bibinfo{author}{Sart, S.}, \bibinfo{author}{Errachid, A.}, \bibinfo{author}{Schneider, Y.-J.} \& \bibinfo{author}{Agathos, S.~N.} \newblock \bibinfo{title}{Controlled expansion and differentiation of mesenchymal stem cells in a microcarrier based stirred bioreactor}. \newblock \emph{\bibinfo{journal}{{BMC} Proceedings}} \textbf{\bibinfo{volume}{5}} (\bibinfo{year}{2011}). \bibitem{Buck2016} \bibinfo{author}{Buck, M.~D.} \emph{et~al.} \newblock \bibinfo{title}{{Mitochondrial Dynamics Controls T Cell Fate through Metabolic Programming}}. \newblock \emph{\bibinfo{journal}{Cell}} \textbf{\bibinfo{volume}{166}}, \bibinfo{pages}{114} (\bibinfo{year}{2016}). \bibitem{van_der_Windt_2012} \bibinfo{author}{van~der Windt, G.~J.} \emph{et~al.} \newblock \bibinfo{title}{Mitochondrial respiratory capacity is a critical regulator of {CD}8+ t cell memory development}. \newblock \emph{\bibinfo{journal}{Immunity}} \textbf{\bibinfo{volume}{36}}, \bibinfo{pages}{68--78} (\bibinfo{year}{2012}). \bibitem{Spitzer2016} \bibinfo{author}{Spitzer, M.~H.} \& \bibinfo{author}{Nolan, G.~P.} \newblock \bibinfo{title}{Mass cytometry: Single cells, many features}. \newblock \emph{\bibinfo{journal}{Cell}} \textbf{\bibinfo{volume}{165}}, \bibinfo{pages}{780--791} (\bibinfo{year}{2016}). \end{thebibliography}