PMID- 30034568 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1932-1058 (Print) IS - 1932-1058 (Electronic) IS - 1932-1058 (Linking) VI - 12 IP - 4 DP - 2018 Jul TI - Biological characterization of the modified poly(dimethylsiloxane) surfaces based on cell attachment and toxicity assays. PG - 044105 LID - 10.1063/1.5035176 [doi] LID - 044105 AB - Poly(dimethylsiloxane) (PDMS) is a material applicable for tissue and biomedical engineering, especially based on microfluidic devices. PDMS is a material used in studies aimed at understanding cell behavior and analyzing the cell adhesion mechanism. In this work, biological characterization of the modified PDMS surfaces based on cell attachment and toxicity assays was performed. We studied Balb 3T3/c, HMEC-1, and HT-29 cell adhesion on poly(dimethylsiloxane) surfaces modified by different proteins, with and without pre-activation with plasma oxygen and UV irradiation. Additionally, we studied how changing of a base and a curing agent ratios influence cell proliferation. We observed that cell type has a high impact on cell adhesion, proliferation, as well as viability after drug exposure. It was tested that the carcinoma cells do not require a highly specific microenvironment for their proliferation. Cytotoxicity assays with celecoxib and oxaliplatin on the modified PDMS surfaces showed that normal cells, cultured on the modified PDMS, are more sensitive to drugs than cancer cells. Cell adhesion was also tested in the microfluidic systems made of the modified PDMS layers. Thanks to that, we studied how the surface area to volume ratio influences cell behavior. The results presented in this manuscript could be helpful for creation of proper culture conditions during in vitro tests as well as to understand cell response in different states of disease depending on drug exposure. FAU - Jastrzebska, Elzbieta AU - Jastrzebska E AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. FAU - Zuchowska, Agnieszka AU - Zuchowska A AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. FAU - Flis, Sylwia AU - Flis S AD - Department of Pharmacology, National Medicines Institute, Chelmska 30/34, 00-725 Warsaw, Poland. FAU - Sokolowska, Patrycja AU - Sokolowska P AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. FAU - Bulka, Magdalena AU - Bulka M AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. FAU - Dybko, Artur AU - Dybko A AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. FAU - Brzozka, Zbigniew AU - Brzozka Z AD - Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland. LA - eng PT - Journal Article DEP - 20180710 PL - United States TA - Biomicrofluidics JT - Biomicrofluidics JID - 101293825 PMC - PMC6039296 EDAT- 2018/07/24 06:00 MHDA- 2018/07/24 06:01 PMCR- 2019/07/10 CRDT- 2018/07/24 06:00 PHST- 2018/04/13 00:00 [received] PHST- 2018/06/17 00:00 [accepted] PHST- 2018/07/24 06:00 [entrez] PHST- 2018/07/24 06:00 [pubmed] PHST- 2018/07/24 06:01 [medline] PHST- 2019/07/10 00:00 [pmc-release] AID - 1.5035176 [pii] AID - 004804BMF [pii] AID - 10.1063/1.5035176 [doi] PST - epublish SO - Biomicrofluidics. 2018 Jul 10;12(4):044105. doi: 10.1063/1.5035176. eCollection 2018 Jul.