PMID- 25015608 OWN - NLM STAT- MEDLINE DCOM- 20150417 LR - 20201005 IS - 1735-546X (Electronic) IS - 1735-1308 (Linking) VI - 11 IP - 3 DP - 2014 Jul 8 TI - Comparing supportive properties of poly lactic-co-glycolic acid (PLGA), PLGA/collagen and human amniotic membrane for human urothelial and smooth muscle cells engineering. PG - 1620-8 AB - PURPOSE: To compare human urothelial and smooth muscle cells attachment and proliferation using three different matrices; poly lactic-co-glycolic acid (PLGA), PLGA/collagen and human amniotic membrane (hAM). MATERIALS AND METHODS: Human urothelial and smooth muscle cells were cultured and examined for expression of urothelium (pancytokeratin and uroplakin III) and smooth muscle cells [desmin and alpha smooth muscle actin (alpha-SMA)] markers. Cells were cultured on three scaffolds; PLGA, PLGA/collagen and hAM. Thereafter, they were analyzed for cell growth on days 1, 3, 7, 14 and 21 after seeding by 3-(4, 5-dimethylthiazole-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Scaffolds were fixed and processed for hematoxylin and eosin (H&E) staining and immunohistochemistry against their cell specific markers after 7 and 14 days of culture. RESULTS: MTT assay results revealed that collagen has improved cell attachment features of PLGA and led to significant increase of MTT signal in PLGA/collagen compared to PLGA (P < .001) and hAM (P < .001). hAM was a weaker matrix for both cell types as demonstrated in MTT assay and scanning electron microscope (SEM) images. SEM micrographs showed normal phenotype and distribution on PLGA and PLGA/collagen. In the same line, cells formed a well-developed layer either on PLGA or PLGA/collagen, which maintained expression of their corresponding markers. CONCLUSION: Our findings demonstrated significant improvement of cell attachment and growth achieved by collagen coating (PLGA/collagen) compared to PLGA and hAM. hAM despite of its natural entity was a weaker matrix for bladder engineering purposes. FAU - Sharifiaghdas, Farzaneh AU - Sharifiaghdas F AD - Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Naji, Mohammad AU - Naji M AD - Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Sarhangnejad, Reza AU - Sarhangnejad R AD - Urology and Nephrology Research Center, Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Rajabi-Zeleti, Sareh AU - Rajabi-Zeleti S AD - Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research, Tehran, Iran. FAU - Mirzadeh, Hamid AU - Mirzadeh H AD - Faculty of Polymer and Petrochemistry, Iran Polymer and Petrochemical Institute, Tehran, Iran. FAU - Zandi, Mojgan AU - Zandi M AD - Biomaterials Department, Iran Polymer and Petrochemical Institute, Tehran, Iran. FAU - Saeed, Mahdi AU - Saeed M AD - Biomaterials Department, Iran Polymer and Petrochemical Institute, Tehran, Iran. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140708 PL - Iran TA - Urol J JT - Urology journal JID - 101286676 RN - 0 (Biocompatible Materials) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 26009-03-0 (Polyglycolic Acid) RN - 33X04XA5AT (Lactic Acid) RN - 9007-34-5 (Collagen) SB - IM MH - *Amnion MH - Biocompatible Materials MH - Cell Adhesion MH - Cell Proliferation MH - *Collagen MH - Epithelial Cells/*physiology/ultrastructure MH - Humans MH - *Lactic Acid MH - Myocytes, Smooth Muscle/*physiology/ultrastructure MH - *Polyglycolic Acid MH - Polylactic Acid-Polyglycolic Acid Copolymer MH - Tissue Engineering/methods MH - *Tissue Scaffolds MH - Urinary Bladder MH - Urothelium EDAT- 2014/07/13 06:00 MHDA- 2015/04/18 06:00 CRDT- 2014/07/13 06:00 PHST- 2013/06/10 00:00 [received] PHST- 2014/02/16 00:00 [accepted] PHST- 2014/07/13 06:00 [entrez] PHST- 2014/07/13 06:00 [pubmed] PHST- 2015/04/18 06:00 [medline] AID - 2120 [pii] PST - epublish SO - Urol J. 2014 Jul 8;11(3):1620-8.