PMID- 30156820 OWN - NLM STAT- MEDLINE DCOM- 20190329 LR - 20190329 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 10 IP - 38 DP - 2018 Sep 26 TI - Inorganic Nanomaterials as Highly Efficient Inhibitors of Cellular Hepatic Fibrosis. PG - 31938-31946 LID - 10.1021/acsami.8b10527 [doi] AB - Chronic liver dysfunction usually begins with hepatic fibrosis. To date, no effective anti-fibrotic drugs have been approved for clinical use in humans. In the current work, titanium dioxide (TiO(2)) nanoparticles (NPs) and silicon dioxide (SiO(2)) NPs are used as active inhibitors with intrinsic chemico-physico properties to block fibrosis and the associated phenotypes through acting on hepatic stellate cells (HSCs, the liver machinery for depositing scar tissues seen in fibrosis). Using LX-2 cells as the HSC model, internalized nanomaterials are found to suppress classical outcomes of cellular fibrosis, for example, inhibiting the expression of collagen I (Col-I) and alpha smooth muscle actin (alpha-SMA), initiated by transforming growth factor beta (TGF-beta)-activated HSCs in both a concentration-dependent and a time-dependent manner. Biochemically, these nanomaterials could also facilitate the proteolytic breakdown of collagen by up-regulation of matrix metalloproteinases (MMPs) and down-regulation of tissue inhibitors of MMPs (TIMPs). Furthermore, through regulating epithelial-mesenchymal transition (EMT) genes [e.g., E-cadherin (E-Cad) and N-cadherin (N-Cad)], the adhesion and migration profiles of TGF-beta-activated LX-2 cells treated with nanomaterials were further inhibited, reverting them to a more quiescent state. Thus, the collective results pave the new way that nanomaterials can be used as potential therapeutic inhibitors for the treatment of in vivo fibrosis. FAU - Peng, Fei AU - Peng F AD - Department of Pharmacy, Faculty of Science , National University of Singapore , 18 Science Drive 4 , Singapore 117543 , Singapore. FAU - Tee, Jie Kai AU - Tee JK AD - Department of Pharmacy, Faculty of Science , National University of Singapore , 18 Science Drive 4 , Singapore 117543 , Singapore. AD - NUS Graduate School for Integrative Sciences & Engineering , Centre for Life Sciences , 28 Medical Drive , Singapore 117456 , Singapore. FAU - Setyawati, Magdiel Inggrid AU - Setyawati MI AD - Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore. FAU - Ding, Xianguang AU - Ding X AD - Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore. FAU - Yeo, Hui Ling Angie AU - Yeo HLA AD - Department of Pharmacy, Faculty of Science , National University of Singapore , 18 Science Drive 4 , Singapore 117543 , Singapore. FAU - Tan, Yeong Lan AU - Tan YL AD - Department of Pharmacy, Faculty of Science , National University of Singapore , 18 Science Drive 4 , Singapore 117543 , Singapore. AD - NUS Graduate School for Integrative Sciences & Engineering , Centre for Life Sciences , 28 Medical Drive , Singapore 117456 , Singapore. FAU - Leong, David Tai AU - Leong DT AUID- ORCID: 0000-0001-8539-9062 AD - Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore. FAU - Ho, Han Kiat AU - Ho HK AUID- ORCID: 0000-0003-0614-3048 AD - Department of Pharmacy, Faculty of Science , National University of Singapore , 18 Science Drive 4 , Singapore 117543 , Singapore. LA - eng PT - Journal Article DEP - 20180911 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 RN - 0 (Actins) RN - 15FIX9V2JP (titanium dioxide) RN - 7631-86-9 (Silicon Dioxide) RN - 9007-34-5 (Collagen) RN - D1JT611TNE (Titanium) SB - IM MH - Actins/genetics MH - Cell Line MH - Collagen/genetics MH - Epithelial-Mesenchymal Transition/genetics MH - Gene Expression/drug effects MH - Hepatic Stellate Cells/*drug effects MH - Humans MH - Liver Cirrhosis/*drug therapy MH - Nanostructures/*chemistry MH - Silicon Dioxide/chemistry/*pharmacology MH - Titanium/chemistry/*pharmacology OTO - NOTNLM OT - fibrosis OT - hepatic stellate cells OT - nanoparticles OT - silicon dioxide OT - titanium dioxide EDAT- 2018/08/30 06:00 MHDA- 2019/03/30 06:00 CRDT- 2018/08/30 06:00 PHST- 2018/08/30 06:00 [pubmed] PHST- 2019/03/30 06:00 [medline] PHST- 2018/08/30 06:00 [entrez] AID - 10.1021/acsami.8b10527 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2018 Sep 26;10(38):31938-31946. doi: 10.1021/acsami.8b10527. Epub 2018 Sep 11.