title: The effect of acrylamide and nitric oxide donors on human mesenchymal progenitor cells.
abstract: We have examined the effects of nitric oxide donors and acrylamide on mesenchymal progenitor cell (hMPC) viability, programmed cell death (PCD) and differentiation. Acrylamide was examined at 0.5mM and 1.5mM concentrations, NOC-18 at 10μM and SNP at 100μM. Cell viability was assayed with MTS, PCD was determined by phosphatidylserine, caspase-9 and -3/7 and mitochondrial membrane potential assays, and osteogenic cell differentiation was evaluated by alkaline phosphatase activity (ALP) and mRNA levels for collagen type I, bone sialoprotein, ostepontin and osteocalcin. Serum-free hMPC cultures treated with 1.5mM acrylamide and SNP for 72h demonstrated reduced viability. PCD analyses revealed that SNP stimulated cells to necrosis in reactive species-dependent manner. Acrylamide (1.5mM) led to apoptosis independent of reactive species. Acrylamide and SNP reduced ALP activity and collagen type I mRNA levels but mRNA levels for bone sialoprotein and osteopontin increased in SNP treated cells and remained unchanged in acrylamide. Acrylamide had no effect on guanylate cyclase and cGMP osteogenic signaling pathway. The study suggests that acrylamide might impair bone development and remodeling upon acute or prolonged intoxication with this compound of mesenchymal cells.
authors.affiliation: Department of Cell Biology and Imaging, Institute of Zoology, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland.
authors.forename: Lukasz
authors.initials: L
authors.lastname: Szewczyk
authors.forename: Justyna
authors.initials: J
authors.lastname: Ulańska
authors.forename: Marta
authors.initials: M
authors.lastname: Dubiel
authors.forename: Anna Maria
authors.initials: AM
authors.lastname: Osyczka
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Tylko
mesh_terms: D020106:Acrylamide / Q000633:toxicity*; D000469:Alkaline Phosphatase / Q000378:metabolism; D020169:Caspases / Q000378:metabolism; D016923:Cell Death / Q000187:drug effects; D002454:Cell Differentiation / Q000187:drug effects; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D024042:Collagen Type I / Q000235:genetics; D006801:Humans; D053078:Membrane Potential, Mitochondrial / Q000187:drug effects; D059630:Mesenchymal Stem Cells / Q000187:drug effects* / Q000378:metabolism; D020030:Nitric Oxide Donors / Q000633:toxicity*; D009599:Nitroprusside / Q000633:toxicity*; D009603:Nitroso Compounds / Q000633:toxicity*; D012333:RNA, Messenger / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism
chemical_list: D024042:Collagen Type I; C093285:NOC 18; D020030:Nitric Oxide Donors; D009603:Nitroso Compounds; D012333:RNA, Messenger; D017382:Reactive Oxygen Species; D009599:Nitroprusside; D020106:Acrylamide; D000469:Alkaline Phosphatase; D020169:Caspases