Noh, Y.K. Kim, S.W. Kim, I.-H. Park, K. 2024-01-19T15:02:22Z 2024-01-19T15:02:22Z 2022-01-10 2021-04 2055-7124 https://pubs.kist.re.kr/handle/201004/117170 Background: Extracellular matrix (ECM) has a profound effect on cell behaviors. In this study, we prepare a decellularized human nasal septal chondrocyte (NSC)-derived ECM (CHDM), as a natural (N-CHDM) or soluble form (S-CHDM), and investigate their impact on NSCs differentiation. Methods: N-CHDM, S-CHDM were obtained from NSC. To evaluate function of NSC cultured on each substrate, gene expression using chondrogenic marker, and chondrogenic protein expression were tested. Preconditioned NSCs-loaded scaffolds were transplanted in nude mice for 3 weeks and analyzed. Results: When cultivated on each substrate, NSCs exhibited similar cell spread area but showed distinct morphology on N-CHDM with significantly lower cell circularity. They were highly proliferative on N-CHDM than S-CHDM and tissue culture plastic (TCP), and showed more improved cell differentiation, as assessed via chondrogenic marker (Col2, Sox9, and Aggrecan) expression and immunofluorescence of COL II. We also investigated the effect of NSCs preconditioning on three different 2D substrates while NSCs were isolated from those substrates, subsequently transferred to 3D mesh scaffold, then cultivated them in vitro or transplanted in vivo. The number of cells in the scaffolds was similar to each other at 5 days but cell differentiation was notably better with NSCs preconditioned on N-CHDM, as assessed via real-time q-PCR, Western blot, and immunofluorescence. Moreover, when those NSCs-loaded polymer scaffolds were transplanted subcutaneously in nude mice for 3 weeks and analyzed, the NSCs preconditioned on the N-CHDM showed significantly advanced cell retention in the scaffold, more cells with a chondrocyte lacunae structure, and larger production of cartilage ECM (COL II, glycosaminoglycan). Conclusions: Taken together, a natural form of decellularized ECM, N-CHDM would present an advanced chondrogenic potential over a reformulated ECM (S-CHDM) or TCP substrate, suggesting that N-CHDM may hold more diverse signaling cues, not just limited to ECM component. ？ 2021, The Author(s). English BioMed Central Ltd Human nasal septal chondrocytes (NSCs) preconditioned on NSC-derived matrix improve their chondrogenic potential Article 10.1186/s40824-021-00211-z 1 Biomaterials Research, v.25, no.1, pp.156 - 167 Biomaterials Research 25 1 156 167 N scie scopus kci ART002729114 000829844300002 2-s2.0-85103667310 Engineering, Biomedical Materials Science, Biomaterials Engineering Materials Science Article aggrecan polymer transcription factor Sox9 animal experiment animal model animal tissue Article articular cartilage cartilage cell adhesion cell differentiation cell proliferation cell structure chondrocyte chondrogenesis controlled study extracellular matrix focal adhesion gene expression human human cell immunofluorescence in vitro study mouse nonhuman nose septum protein expression quantitative analysis real time polymerase chain reaction tissue culture Western blotting Cartilage Chondrocyte­derived extracellular matrix Extracellular matrix (ECM) Human nasal septal chondrocyte (NSC) Preconditioning