Lysyl oxidase binds transforming growth factor-beta and regulates its signaling via amine oxidase activity. 2008

Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
Dental Research Center, University of North Carolina at Chapel Hill, North Carolina 27599-7455, USA

Lysyl oxidase (LOX), an amine oxidase critical for the initiation of collagen and elastin cross-linking, has recently been shown to regulate cellular activities possibly by modulating the functions of growth factors. In this study, we investigated the interaction between LOX and transforming growth factor-beta1 (TGF-beta1), a potent growth factor abundant in bone, the effect of LOX on TGF-beta1 signaling, and its potential mechanism. The specific binding between mature LOX and mature TGF-beta1 was demonstrated by immunoprecipitation and glutathione S-transferase pulldown assay in vitro. Both proteins were colocalized in the extracellular matrix in an osteoblastic cell culture system, and the binding complex was identified in the mineral-associated fraction of bone matrix. Furthermore, LOX suppressed TGF-beta1-induced Smad3 phosphorylation likely through its amine oxidase activity. The data indicate that LOX binds to mature TGF-beta1 and enzymatically regulates its signaling in bone and thus may play an important role in bone maintenance and remodeling.

UI MeSH Term Description Entries
D008249 Protein-Lysine 6-Oxidase An enzyme oxidizing peptidyl-lysyl-peptide in the presence of water & molecular oxygen to yield peptidyl-allysyl-peptide plus ammonia & hydrogen peroxide. EC 1.4.3.13. Lysyl Oxidase,Collagen Lysyl Oxidase,6-Oxidase, Protein-Lysine,Lysyl Oxidase, Collagen,Oxidase, Collagen Lysyl,Oxidase, Lysyl,Protein Lysine 6 Oxidase
D010006 Osteoblasts Bone-forming cells which secrete an EXTRACELLULAR MATRIX. HYDROXYAPATITE crystals are then deposited into the matrix to form bone. Osteoblast
D001842 Bone and Bones A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX. Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
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
D005982 Glutathione Transferase A transferase that catalyzes the addition of aliphatic, aromatic, or heterocyclic FREE RADICALS as well as EPOXIDES and arene oxides to GLUTATHIONE. Addition takes place at the SULFUR. It also catalyzes the reduction of polyol nitrate by glutathione to polyol and nitrite. Glutathione S-Alkyltransferase,Glutathione S-Aryltransferase,Glutathione S-Epoxidetransferase,Ligandins,S-Hydroxyalkyl Glutathione Lyase,Glutathione Organic Nitrate Ester Reductase,Glutathione S-Transferase,Glutathione S-Transferase 3,Glutathione S-Transferase A,Glutathione S-Transferase B,Glutathione S-Transferase C,Glutathione S-Transferase III,Glutathione S-Transferase P,Glutathione Transferase E,Glutathione Transferase mu,Glutathione Transferases,Heme Transfer Protein,Ligandin,Yb-Glutathione-S-Transferase,Glutathione Lyase, S-Hydroxyalkyl,Glutathione S Alkyltransferase,Glutathione S Aryltransferase,Glutathione S Epoxidetransferase,Glutathione S Transferase,Glutathione S Transferase 3,Glutathione S Transferase A,Glutathione S Transferase B,Glutathione S Transferase C,Glutathione S Transferase III,Glutathione S Transferase P,Lyase, S-Hydroxyalkyl Glutathione,P, Glutathione S-Transferase,Protein, Heme Transfer,S Hydroxyalkyl Glutathione Lyase,S-Alkyltransferase, Glutathione,S-Aryltransferase, Glutathione,S-Epoxidetransferase, Glutathione,S-Transferase 3, Glutathione,S-Transferase A, Glutathione,S-Transferase B, Glutathione,S-Transferase C, Glutathione,S-Transferase III, Glutathione,S-Transferase P, Glutathione,S-Transferase, Glutathione,Transfer Protein, Heme,Transferase E, Glutathione,Transferase mu, Glutathione,Transferase, Glutathione,Transferases, Glutathione
D006631 Amine Oxidase (Copper-Containing) A group of enzymes including those oxidizing primary monoamines, diamines, and histamine. They are copper proteins, and, as their action depends on a carbonyl group, they are sensitive to inhibition by semicarbazide. Diamine Oxidase,Histaminase,Amine Oxidase, Copper-Containing,Copper Amine Oxidase,Diaminobenzidine Oxidase,Semicarbazide-Sensitive Amine Oxidase,Xylylene Diamine Oxidase,Amine Oxidase, Copper,Amine Oxidase, Copper Containing,Amine Oxidase, Semicarbazide-Sensitive,Copper-Containing Amine Oxidase,Diamine Oxidase, Xylylene,Oxidase, Copper Amine,Oxidase, Copper-Containing Amine,Oxidase, Diamine,Oxidase, Diaminobenzidine,Oxidase, Semicarbazide-Sensitive Amine,Oxidase, Xylylene Diamine,Semicarbazide Sensitive Amine Oxidase
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
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
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D015971 Gene Expression Regulation, Enzymologic Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in enzyme synthesis. Enzymologic Gene Expression Regulation,Regulation of Gene Expression, Enzymologic,Regulation, Gene Expression, Enzymologic

Related Publications

Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
April 2004, The Journal of biological chemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
December 2006, Molecular and cellular biology,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
March 1997, Journal of vascular surgery,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
November 2000, The Journal of biological chemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
November 1999, The Journal of biological chemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
May 2001, The Journal of biological chemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
December 1994, The Journal of biological chemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
December 2018, Biochemistry,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
April 2002, Chinese journal of traumatology = Zhonghua chuang shang za zhi,
Phimon Atsawasuwan, and Yoshiyuki Mochida, and Michitsuna Katafuchi, and Masaru Kaku, and Keith S K Fong, and Katalin Csiszar, and Mitsuo Yamauchi
November 2005, Circulation research,
Copied contents to your clipboard!