Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ayelet M, Samuni"'
Autor:
Ayelet M. Samuni, Usha Kasid, Eric Y. Chuang, Simeng Suy, William DeGraff, Murali C. Krishna, Angelo Russo, James B. Mitchell
Publikováno v:
Cancer Research. 65:579-586
Despite significant evidence of a role of hypoxia in cellular resistance to ionizing radiation–induced toxicity, the underlying molecular mechanisms remain unclear. This study focused on the influence of hypoxia on radiation-induced signals in TK6
Publikováno v:
Cancer. 103:1302-1313
BACKGROUND In previous studies, nitroxide tempo (2, 2, 6, 6-tetramethyl-piperidine-1-oxyl), a small molecule, induced cell death in cancer cells. The current study examined the antineoplastic properties of tempo in the human hormone-dependent/hormone
Autor:
Janet Gamson, Murali C. Krishna, Ayelet M. Samuni, Angelo Russo, Ken Ichi Yamada, James B. Mitchell, Yuval Samuni
Publikováno v:
Antioxidants & Redox Signaling. 6:587-595
Nitroxides have been shown to be effective antioxidants, radiation protectors, and redox-active probes for functional electron paramagnetic resonance (EPR) imaging. More recently, the nitroxide 4-hydroxy-2,2,6,6-tetramethylpiperidinyl-N-oxyl (Tempol)
Autor:
Anastasia L. Sowers, Makiko Fujii, Michael Reiss, Delphine Javelaud, Alain Mauviel, Ayelet M. Samuni, Sandhya Xavier, James B. Mitchell, Angelo Russo, Kathy Flanders, Shai Yarkoni, Anita B. Roberts, Ester Piek, Angelina Felici
Publikováno v:
Journal of Biological Chemistry. 279:15167-15176
Radiation-induced fibrosis is an untoward effect of high dose therapeutic and inadvertent exposure to ionizing radiation. Transforming growth factor-beta (TGF-beta) has been proposed to be critical in tissue repair mechanisms resulting from radiation
Autor:
Angelo Russo, William DeGraff, Murali C. Krishna, Ayelet M. Samuni, William E. Stein, Eric Y. Chuang, James B. Mitchell
Publikováno v:
Proceedings of the National Academy of Sciences. 100:5390-5395
Modulation of the cytotoxicity and mutagenicity of 4-hydroxyestradiol (4-OHE 2 ), an oxidative metabolite of estrogen, by antioxidants was assessed in human MCF7 cells and TK-6 lymphoblast cells. The cytotoxicity of the catecholic estrogens was poten
Autor:
Ayelet M. Samuni, Yechezkel Barenholz
Publikováno v:
Free Radical Biology and Medicine. 34:177-185
A relatively new strategy in preventing oxidative damage employs cyclic nitroxides. These stable radicals have been widely used as biophysical probes, spin labels, and are currently tested as contrast agents for nuclear magnetic resonance imaging. Ni
Autor:
Krish Chandrasekaran, Sushil Chandani, Dorairajan Balasubramanian, Ayelet M. Samuni, Geetha Thiagarajan, Sithamraju Harinarayana Rao
Publikováno v:
Experimental Eye Research. 75:421-430
We have investigated the biochemical and cell biological basis of the reported beneficiary effects of the leaf extracts of the plant Ginkgo biloba, which has been used as a possible ophthalmic drug. The antioxidant, antimicrobial, anti-apoptotic and
Autor:
Roy P. Planalp, William DeGraff, Murali C. Krishna, James B. Mitchell, Martin W. Brechbiel, Angelo Russo, Ayelet M. Samuni
Publikováno v:
Biochimica et Biophysica Acta (BBA) - General Subjects. 1571:211-218
Tachpyr (N,NVNW-tris(2-pyridylmethyl)-cis,cis-1,3,5-triaminocyclohexane), a novel metal chelator, was previously shown to deplete intracellular iron and exert a cytotoxic effect on cultured bladder cancer cells. Tachpyr binds Fe(II) and readily reduc
Autor:
James B. Mitchell, Ayelet M. Samuni, Harvey I. Pass, W. Matthews, Angelo Russo, Helen W. Pogrebniak
Publikováno v:
Journal of Surgical Research. 50:469-474
Tumor necrosis factor (TNF) facilitates superoxide production, and spin traps may detoxify superoxide by acting as superoxide dismutase mimics. We investigated the ability of a stable nitroxide spin trap, TEMPOL, to protect TNF-sensitive cells from e
Autor:
Ayelet M, Samuni, Usha, Kasid, Eric Y, Chuang, Simeng, Suy, William, Degraff, Murali C, Krishna, Angelo, Russo, James B, Mitchell
Publikováno v:
Cancer research. 65(2)
Despite significant evidence of a role of hypoxia in cellular resistance to ionizing radiation-induced toxicity, the underlying molecular mechanisms remain unclear. This study focused on the influence of hypoxia on radiation-induced signals in TK6 hu