Saegusa, Jun Akakura, Nobuaki Wu, Chun-Yi Hoogland, Case Ma, Zi Lam, Kit S Liu, Fu-Tong Takada, Yoko K Takada, Yoshikazu
Published in
The Journal of biological chemistry
Secretory phospholipase A2 group IIA (sPLA2-IIA) plays an important role in the pathogenesis of inflammatory diseases. Catalytic activity of this enzyme that generates arachidonic acid is a major target for development of anti-inflammatory agents. Independent of its catalytic activity, sPLA2-IIA induces pro-inflammatory signals in a receptor-mediat...
Majumdar, M Tarui, T Shi, B Akakura, N Ruf, W Yoshikazu Takada
Published in
Journal of Biological Chemistry
Plasmin is a major extracellular protease that elicits intracellular signals to mediate platelet aggregation, chemotaxis of peripheral blood monocytes, and release of arachidonate and leukotriene from several cell types in a G protein-dependent manner. Angiostatin, a fragment of plasmin(ogen), is a ligand and an antagonist for integrin alpha(9)beta...
Fujita, M Ieguchi, K Cedano-Prieto, Dm Fong, A Wilkerson, C Chen, Jq Wu, M Lo, Sh Cheung, At Wilson, Md
...
Published in
Journal of Biological Chemistry
Insulin-like growth factor-1 (IGF1) is a major therapeutic target for cancer. We recently reported that IGF1 directly binds to integrins (αvβ3 and α6β4) and induces ternary complex formation (integrin-IGF1-IGF1 receptor (IGF1R)) and that the integrin binding-defective mutant of IGF1 (R36E/R37E) is defective in signaling and ternary complex formatio...
Fujita, Masaaki Takada, Yoko K Takada, Yoshikazu
Published in
The Journal of biological chemistry
Integrin αvβ3 plays a role in insulin-like growth factor 1 (IGF1) signaling (integrin-IGF1 receptor (IGF1R) cross-talk) in non-transformed cells in anchorage-dependent conditions. We reported previously that IGF1 directly binds to αvβ3 and induces αvβ3-IGF1-IGF1R ternary complex formation in these conditions. The integrin-binding defective IGF1 mut...
Civra, Andrea Giuffrida, Maria Gabriella Donalisio, Manuela Napolitano, Lorenzo Takada, Yoshikazu Coulson, Barbara S Conti, Amedeo Lembo, David
Published in
The Journal of biological chemistry
Human rotavirus is the leading cause of severe gastroenteritis in infants and children under the age of 5 years in both developed and developing countries. Human lactadherin, a milk fat globule membrane glycoprotein, inhibits human rotavirus infection in vitro, whereas bovine lactadherin is not active. Moreover, it protects breastfed infants agains...
Fujita, M Ieguchi, K Davari, P Yamaji, S Taniguchi, Y Sekiguchi, K Takada, Yk Yoshikazu Takada
Published in
Journal of Biological Chemistry
Integrin αvβ3 plays a role in insulin-like growth factor-1 (IGF1) signaling (integrin-IGF1 receptor (IGF1R) cross-talk). The specifics of the cross-talk are, however, unclear. In a current model, "ligand occupancy" of αvβ3 (i.e. the binding of extracellular matrix proteins) enhances signaling induced by IGF1 binding to IGF1R. We recently reported t...
J, Saegusa S, Yamaji K, Ieguchi Cy, Wu Ks, Lam Ft, Liu Yk, Takada Y, Takada
Published in
Journal of Biological Chemistry
It has been proposed that ligand occupancy of integrin alphavbeta3 with extracellular matrix ligands (e.g. vitronectin) plays a critical role in insulin-like growth factor-1 (IGF-1) signaling. We found that expression of alphavbeta3 enhanced IGF-1-induced proliferation of Chinese hamster ovary cells in serum-free conditions (in the absence of vitro...
Wu, Pl Lee, Sc Chuang, Cc Mori, S Akakura, N Wu, Wg Yoshikazu Takada
Published in
Journal of Biological Chemistry
Severe tissue necrosis with a retarded wound healing process is a major symptom of a cobra snakebite. Cardiotoxins (CTXs) are major components of cobra venoms that belong to the Ly-6 protein family and are implicated in tissue damage. The interaction of the major CTX from Taiwan cobra, i.e. CTX A3, with sulfatides in the cell membrane has recently ...
Haudenschild, Dominik R Hong, Eunmee Yik, Jasper H N Chromy, Brett Mörgelin, Matthias Snow, Kaylene D Acharya, Chitrangada Takada, Yoshikazu Di Cesare, Paul E
Published in
The Journal of biological chemistry
Cartilage oligomeric matrix protein (COMP) is an important non-collagenous cartilage protein that is essential for the structural integrity of the cartilage extracellular matrix. The repeated modular structure of COMP allows it to "bridge" and assemble multiple cartilage extracellular matrix components such as collagens, matrilins, and proteoglycan...
Fujita, Masaaki Zhu, Kan Fujita, Chitose K Zhao, Min Lam, Kit S Kurth, Mark J Takada, Yoko K Takada, Yoshikazu
Published in
The Journal of biological chemistry
Integrins are activated by signaling from inside the cell (inside-out signaling) through global conformational changes of integrins. We recently discovered that fractalkine activates integrins in the absence of CX3CR1 through the direct binding of fractalkine to a ligand-binding site in the integrin headpiece (site 2) that is distinct from the clas...
