PMID- 30931468 OWN - NLM STAT- MEDLINE DCOM- 20190828 LR - 20190828 IS - 1473-0189 (Electronic) IS - 1473-0189 (Linking) VI - 19 IP - 9 DP - 2019 Apr 23 TI - Immature dendritic cells navigate microscopic mazes to find tumor cells. PG - 1665-1675 LID - 10.1039/c9lc00150f [doi] AB - Dendritic cells (DCs) are potent antigen-presenting cells with high sentinel ability to scan their neighborhood and to initiate an adaptive immune response. Whereas chemotactic migration of mature DCs (mDCs) towards lymph nodes is relatively well documented, the migratory behavior of immature DCs (imDCs) in tumor microenvironments is still poorly understood. Here, microfluidic systems of various geometries, including mazes, are used to investigate how the physical and chemical microenvironment influences the migration pattern of imDCs. Under proper degree of confinement, the imDCs are preferentially recruited towards cancer vs. normal cells, accompanied by increased cell speed and persistence. Furthermore, a systematic screen of cytokines, reveals that Gas6 is a major chemokine responsible for the chemotactic preference. These results and the accompanying theoretical model suggest that imDC migration in complex tissue environments is tuned by a proper balance between the strength of the chemical gradients and the degree of spatial confinement. FAU - Um, Eujin AU - Um E AD - Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea. FAU - Oh, Jung Min AU - Oh JM FAU - Park, Juhee AU - Park J FAU - Song, Taegeun AU - Song T FAU - Kim, Tae-Eon AU - Kim TE FAU - Choi, Yongjun AU - Choi Y FAU - Shin, Changsik AU - Shin C FAU - Kolygina, Diana AU - Kolygina D FAU - Jeon, Jae-Hyung AU - Jeon JH FAU - Grzybowski, Bartosz A AU - Grzybowski BA FAU - Cho, Yoon-Kyoung AU - Cho YK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Lab Chip JT - Lab on a chip JID - 101128948 RN - 0 (Cytokines) SB - IM EIN - Lab Chip. 2019 Sep 10;19(18):3140. PMID: 31468052 MH - Animals MH - Cell Line MH - *Cell Movement MH - Chemotaxis MH - Cytokines/metabolism MH - Dendritic Cells/*cytology/metabolism MH - Mice MH - Mice, Inbred BALB C EDAT- 2019/04/02 06:00 MHDA- 2019/08/29 06:00 CRDT- 2019/04/02 06:00 PHST- 2019/04/02 06:00 [pubmed] PHST- 2019/08/29 06:00 [medline] PHST- 2019/04/02 06:00 [entrez] AID - 10.1039/c9lc00150f [doi] PST - ppublish SO - Lab Chip. 2019 Apr 23;19(9):1665-1675. doi: 10.1039/c9lc00150f.