Promotion of Adipogenesis of 3T3-L1 Cells on Protein Adsorption-Suppressing Poly(2-methoxyethyl acrylate) Analogs.
Stem cell differentiation is an important issue in regenerative medicine and tissue engineering. It has been reported that cell shape is one of the factors that determine the lineage commitment of mesenchymal stem cells (MSCs). Therefore, the substrates have been developed to control their shapes. Recently, we found that poly(2-methoxyethyl acrylate) (PMEA) analogs can control tumor cell shape through the alteration of protein adsorption. Here, the adipogenesis of an adipocyte-progenitor cell, 3T3-L1 cells, was attempted; adipogenesis was to be regulated by surfaces coated with PMEA analogs through the control of their shape. The adipogenesis of 3T3-L1 cells was promoted on the surfaces coated with PMEA and its analogs, PMe3A and PMe2A. Evident focal adhesions were hardly observed on these surfaces, suggesting that integrin signal activation was suppressed. Additionally, actin assembly and cell spreading were suppressed on these surfaces. Therefore, the surfaces coated with PMEA analogs are expected to be suitable surfaces to regulate adipogenesis through the suppression of cell spreading. Additionally, we found that protein adsorption correlated with actin assembly and adipogenesis.
International Center for Materials Nanoarchitectonics, National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
Takashi
T
Hoshiba
Eri
E
Nemoto
Kazuhiro
K
Sato
Hiroka
H
Maruyama
Chiho
C
Endo
Institute for Materials Chemistry and Engineering, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka, Fukuoka 819-0395, Japan.
Masaru
M
Tanaka
D041721:3T3-L1 Cells; D017667:Adipocytes / Q000187:drug effects; D050156:Adipogenesis / Q000187:drug effects*; D000327:Adsorption / Q000187:drug effects; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry / Q000494:pharmacology*; D002448:Cell Adhesion / Q000187:drug effects; D002454:Cell Differentiation / Q000187:drug effects*; D059630:Mesenchymal Stem Cells / Q000187:drug effects; D051379:Mice; D011109:Polymethacrylic Acids / Q000737:chemistry / Q000494:pharmacology*; D023822:Tissue Engineering
D001672:Biocompatible Materials; D011109:Polymethacrylic Acids; C518842:poly(2-methoxyethyl methacrylate)