Oxidative stress-induced poly(ADP-ribosyl)ation in chick limb bud-derived chondrocytes. 2007

Róza Zákány, and Edina Bakondi, and Tamás Juhász, and Csaba Matta, and Zsolt Szíjgyártó, and Katalin Erdélyi, and Eva Szabó, and László Módis, and László Virág, and Pál Gergely
Department of Anatomy, Histology and Embryology, Research Center for Molecular Medicine, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary.

Oxidative stress has been implicated in the pathogenesis of various diseases affecting chondrogenesis or the function of articular cartilage. DNA damage caused by oxidative stress may trigger the activation of the nuclear enzyme, poly(ADP-ribose) polymerase-1 (PARP-1) which may contribute to tissue injury. We aimed at investigating the effects of peroxynitrite (100-600 microM) and hydrogen peroxide (0.1-4 mM) on PARP activation and extracellular matrix production of high density micromass cultures (HDC) prepared from chick limb bud mesenchymal cells. We found that both oxidative species strongly inhibited matrix formation of HDCs treated on day 2 but not on day 5. The PARP inhibitor 3-aminobenzamide (3-AB) stimulated matrix production in non-stressed cells and prevented suppressed matrix production in oxidatively stressed cells. Both hydrogen peroxide and peroxynitrite induced PARP activation and poly(ADP-ribose) accumulation. Decreased proliferation, viability and NAD+ content were not or only slightly improved by 3-AB, indicating that 3-AB directly affects matrix formation. In conclusion, oxidative stress stimulates poly(ADP-ribose) metabolism and inhibits extracellular matrix production of HDCs in a PARP-dependent manner. Our findings may have implications for potential therapeutic approaches aimed at restoring the matrix production capacity of chondrogenic cells.

UI MeSH Term Description Entries
D008648 Mesoderm The middle germ layer of an embryo derived from three paired mesenchymal aggregates along the neural tube. Mesenchyme,Dorsal Mesoderm,Intermediate Mesoderm,Lateral Plate Mesoderm,Mesenchyma,Paraxial Mesoderm,Dorsal Mesoderms,Intermediate Mesoderms,Lateral Plate Mesoderms,Mesenchymas,Mesoderm, Dorsal,Mesoderm, Intermediate,Mesoderm, Lateral Plate,Mesoderm, Paraxial,Mesoderms, Dorsal,Mesoderms, Intermediate,Mesoderms, Lateral Plate,Mesoderms, Paraxial,Paraxial Mesoderms,Plate Mesoderm, Lateral,Plate Mesoderms, Lateral
D011065 Poly(ADP-ribose) Polymerases Enzymes that catalyze the transfer of multiple ADP-RIBOSE groups from nicotinamide-adenine dinucleotide (NAD) onto protein targets, thus building up a linear or branched homopolymer of repeating ADP-ribose units i.e., POLY ADENOSINE DIPHOSPHATE RIBOSE. ADP-Ribosyltransferase (Polymerizing),Poly ADP Ribose Polymerase,Poly(ADP-Ribose) Synthase,Poly(ADP-ribose) Polymerase,PARP Polymerase,Poly ADP Ribose Transferase,Poly ADP-Ribose Synthase,Poly(ADP-Ribose) Transferase,Poly(ADPR) Polymerase,Poly(ADPribose) Polymerase,Poly ADP Ribose Synthase,Polymerase, PARP,Synthase, Poly ADP-Ribose
D002356 Cartilage A non-vascular form of connective tissue composed of CHONDROCYTES embedded in a matrix that includes CHONDROITIN SULFATE and various types of FIBRILLAR COLLAGEN. There are three major types: HYALINE CARTILAGE; FIBROCARTILAGE; and ELASTIC CARTILAGE. Cartilages
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002642 Chick Embryo The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching. Embryo, Chick,Chick Embryos,Embryos, Chick
D004789 Enzyme Activation Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme. Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D005109 Extracellular Matrix A meshwork-like substance found within the extracellular space and in association with the basement membrane of the cell surface. It promotes cellular proliferation and provides a supporting structure to which cells or cell lysates in culture dishes adhere. Matrix, Extracellular,Extracellular Matrices,Matrices, Extracellular
D006861 Hydrogen Peroxide A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials. Hydrogen Peroxide (H2O2),Hydroperoxide,Oxydol,Perhydrol,Superoxol,Peroxide, Hydrogen
D000067856 Poly(ADP-ribose) Polymerase Inhibitors Chemicals and drugs that inhibit the action of POLY(ADP-RIBOSE)POLYMERASES. Inhibitors of Poly(ADP-ribose) Polymerase,PARP Inhibitor,Poly(ADP-Ribose) Polymerase Inhibitor,Poly(ADP-ribosylation) Inhibitor,Inhibitors of Poly(ADP-ribose) Polymerases,PARP Inhibitors,Poly(ADP-ribosylation) Inhibitors,Inhibitor, PARP,Inhibitors, PARP
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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