Biomaterial Database

Effect of hydrogen peroxide on the metabolism of articular chondrocytes. 1999

S Asada, and K Fukuda, and M Oh, and C Hamanishi, and S Tanaka

Department of Orthopaedic Surgery, Kinki University School of Medicine, Osaka-sayama, Osaka, Japan.

OBJECTIVE To examine the effect of hydrogen peroxide on chondrocyte metabolism. METHODS Bovine articular chondrocytes were used. Proteoglycan (PG) synthesis was measured with [35S] sulfate incorporation. For detection of apoptosis, the TdT-mediated dUTP-biotin nick end labeling (TUNEL) and annexin V assay were used. Extracellular-regulated protein kinase (ERK) activity was measured using a mitogen-activated protein kinase assay system. RESULTS Addition of hydrogen peroxide resulted in the inhibition of PG synthesis, apoptosis, and enhanced ERK activity. CONCLUSIONS Hydrogen peroxide plays an important role in regulating the metabolism of chondrocytes.

UI	MeSH Term	Description	Entries
D011509	Proteoglycans	Glycoproteins which have a very high polysaccharide content.	Proteoglycan,Proteoglycan Type H
D002358	Cartilage, Articular	A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.	Articular Cartilage,Articular Cartilages,Cartilages, Articular
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
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
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
D017209	Apoptosis	A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.	Apoptosis, Extrinsic Pathway,Apoptosis, Intrinsic Pathway,Caspase-Dependent Apoptosis,Classic Apoptosis,Classical Apoptosis,Programmed Cell Death,Programmed Cell Death, Type I,Apoptoses, Extrinsic Pathway,Apoptoses, Intrinsic Pathway,Apoptosis, Caspase-Dependent,Apoptosis, Classic,Apoptosis, Classical,Caspase Dependent Apoptosis,Cell Death, Programmed,Classic Apoptoses,Extrinsic Pathway Apoptoses,Extrinsic Pathway Apoptosis,Intrinsic Pathway Apoptoses,Intrinsic Pathway Apoptosis
D017304	Annexin A5	A protein of the annexin family isolated from human PLACENTA and other tissues. It inhibits cytosolic PHOSPHOLIPASE A2, and displays anticoagulant activity.	Annexin V,Placental Anticoagulant Protein I,Anchorin CII,Calphobindin I,Endonexin II,Lipocortin V,Lipocortin-V
D048052	Mitogen-Activated Protein Kinase 3	A 44-kDa extracellular signal-regulated MAP kinase that may play a role the initiation and regulation of MEIOSIS; MITOSIS; and postmitotic functions in differentiated cells. It phosphorylates a number of TRANSCRIPTION FACTORS; and MICROTUBULE-ASSOCIATED PROTEINS.	Extracellular Signal-Regulated Kinase 1,ERK1 Kinase,MAPK3 Mitogen-Activated Protein Kinase,Meiosis-Activated Myelin Basic Protein Kinase p44(mpk),Microtubule-Associated Protein-2 Kinase,PSTkinase p44mpk,Protein-Serine-Threonine Kinase p44(mpk),p44 MAPK,Extracellular Signal Regulated Kinase 1,Kinase, ERK1,Kinase, Microtubule-Associated Protein-2,MAPK3 Mitogen Activated Protein Kinase,Microtubule Associated Protein 2 Kinase,Mitogen Activated Protein Kinase 3,p44mpk, PSTkinase
D017871	Calcium-Calmodulin-Dependent Protein Kinases	A CALMODULIN-dependent enzyme that catalyzes the phosphorylation of proteins. This enzyme is also sometimes dependent on CALCIUM. A wide range of proteins can act as acceptor, including VIMENTIN; SYNAPSINS; GLYCOGEN SYNTHASE; MYOSIN LIGHT CHAINS; and the MICROTUBULE-ASSOCIATED PROTEINS. (From Enzyme Nomenclature, 1992, p277)	Ca(2+)-Calmodulin-Dependent Protein Kinase,Calcium-Calmodulin-Dependent Protein Kinase,Calmodulin-Dependent Protein Kinase,Calmodulin-Dependent Protein Kinases,Multifunctional Calcium-Calmodulin-Dependent Protein Kinase,Restricted Calcium-Calmodulin-Dependent Protein Kinase,Calcium-Calmodulin-Dependent Protein Kinases, Multifunctional,Calcium-Calmodulin-Dependent Protein Kinases, Restricted,Calmodulin-Dependent Multiprotein Kinase,Calmodulin-Kinase,Cam-MPK,Multifunctional Calcium-Calmodulin-Dependent Protein Kinases,Restricted Calcium-Calmodulin-Dependent Protein Kinases,Calcium Calmodulin Dependent Protein Kinase,Calcium Calmodulin Dependent Protein Kinases, Multifunctional,Calcium Calmodulin Dependent Protein Kinases, Restricted,Calmodulin Dependent Multiprotein Kinase,Calmodulin Dependent Protein Kinase,Calmodulin Dependent Protein Kinases,Calmodulin Kinase,Cam MPK,Kinase, Calcium-Calmodulin-Dependent Protein,Kinase, Calmodulin-Dependent Protein,Multifunctional Calcium Calmodulin Dependent Protein Kinase,Multifunctional Calcium Calmodulin Dependent Protein Kinases,Multiprotein Kinase, Calmodulin-Dependent,Protein Kinase, Calcium-Calmodulin-Dependent,Protein Kinase, Calmodulin-Dependent,Protein Kinases, Calcium-Calmodulin-Dependent,Protein Kinases, Calmodulin-Dependent,Restricted Calcium Calmodulin Dependent Protein Kinase,Restricted Calcium Calmodulin Dependent Protein Kinases