Defining Lineage-Specific Membrane Fluidity Signatures that Regulate Adhesion Kinetics

Publication date: Available online 6 September 2018Source: Stem Cell ReportsAuthor(s): Takahisa Matsuzaki, Shinya Matsumoto, Toshiharu Kasai, Emi Yoshizawa, Satoshi Okamoto, Hiroshi Y. Yoshikawa, Hideki Taniguchi, Takanori TakebeSummaryCellular membrane fluidity is a critical modulator of cell adhesion and migration, prompting us to define the systematic landscape of lineage-specific cellular fluidity throughout differentiation. Here, we have unveiled membrane fluidity landscapes in various lineages ranging from human pluripotency to differentiated progeny: (1) membrane rigidification precedes the exit from pluripotency, (2) membrane composition modulates activin signaling transmission, and (3) signatures are relatively germ layer specific presumably due to unique lipid compositions. By modulating variable lineage-specific fluidity, we developed a label-free “adhesion sorting (AdSort)” method with simple cultural manipulation, effectively eliminating pluripotent stem cells and purifying target population as a result of the over 1,150 of screened conditions combining compounds and matrices. These results underscore the important role of tunable membrane fluidity in influencing stem cell maintenance and differentiation that can be translated into lineage-specific cell purification strategy.Graphical Abstract
Source: Stem Cell Reports - Category: Stem Cells Source Type: research