burkitt lymphoma/glutatione

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Cloning of phospholipid hydroperoxide glutathione peroxidase (PHGPx) as an anti-apoptotic and growth promoting gene of Burkitt lymphoma cells.

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Burkitt Lymphoma (BL) cells are highly sensitive to suboptimal growth conditions and undergo apoptosis when seeded at low cell density or reduced serum concentration. Irradiated fibroblasts or a mix of pruvate, alpha-thioglycerol, and bathocuproine disulfonate can protect BL cells from apoptosis

Apoptosis in Burkitt lymphoma cells is prevented by promotion of cysteine uptake.

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Burkitt lymphoma (BL) cells are highly sensitive to suboptimal growth conditions and undergo apoptosis when seeded at reduced serum concentration or low cell density. Irradiated fibroblasts can protect BL cells from apoptosis induced by lowering the serum concentration or cell density through

S-Geranylgeranyl-L-glutathione is a ligand for human B cell-confinement receptor P2RY8.

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Germinal centres are important sites for antibody diversification and affinity maturation, and are also a common origin of B cell malignancies. Despite being made up of motile cells, germinal centres are tightly confined within B cell follicles. The cues that promote this confinement are

Serine Biosynthesis Pathway Supports MYC-miR-494-EZH2 Feed-Forward Circuit Necessary to Maintain Metabolic and Epigenetic Reprogramming of Burkitt Lymphoma Cells.

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Burkitt lymphoma (BL) is a rapidly growing tumor, characterized by high anabolic requirements. The MYC oncogene plays a central role in the pathogenesis of this malignancy, controlling genes involved in apoptosis, proliferation, and cellular metabolism. Serine biosynthesis pathway (SBP)

Facile fabrication of redox-responsive thiol-containing drug delivery system via RAFT polymerization.

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A novel kind of redox-responsive polymeric drug delivery system has been designed and prepared successfully through the coupling of the multithiol branched polymers and thiol-containing drugs. The branched poly((S-(4-vinyl) benzyl S'-propyltrithiocarbonate)-co-(poly(ethylene glycol) methacrylate))

Aberrant promoter methylation of multiple genes throughout the clinico-pathologic spectrum of B-cell neoplasia.

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OBJECTIVE Aberrant promoter methylation targets CpG islands causing gene silencing. We explored aberrant promoter methylation of genes potentially involved in B-cell malignancies and encoding proteins implicated in DNA repair (O6-methylguanine-DNA methyltransferase, MGMT), detoxification of

Elevated DNA topoisomerase II activity in nitrogen mustard-resistant human cells.

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A human Burkitt lymphoma cell line, Raji-HN2, made 10-fold more resistant to nitrogen mustard (HN2) than the parental Raji cell line, exhibited the following characteristics when compared to the parental Raji cells: (i) decreased HN2-induced DNA interstrand crosslinking; (ii) increased (3-fold) DNA

[The relationship between sensitivity to arsenic trioxide and antioxidative capacity of malignant hematopoietic cells].

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OBJECTIVE To detect the relationship between sensitivity of malignant hematopoietic cells to arsenic trioxide (As2O3) and cellular capacity against oxidation. METHODS Nine cell lines derived from hematopoietic malignancies were treated with As2O3 in vitro. Apoptosis was assessed by cellular

Regulation of CD20 expression by radiation-induced changes in intracellular redox status.

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Increasing the levels of CD20 expression in cells that harbor low CD20 levels may enhance their responsiveness to CD20-specific antibody therapies. Here, we examined the regulation of CD20 expression after treatment with 0.5-2.0 Gy X-irradiation and hydrogen peroxide (H(2)O(2)), in the presence or

Epstein-barr virus nuclear antigen-1 binds to nuclear transporter karyopherin alpha1/NPI-1 in addition to karyopherin alpha2/Rch1.

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We searched for cellular proteins that interact with Epstein-Barr (EBV) virus nuclear antigen-1, which is a latent EBV origin-binding protein detected in all EBV latently infected cells and essential for maintenance of the latent EBV genome, by a yeast two-hybrid screening of a B lymphocyte cDNA

The amino-terminal domains of Epstein-Barr virus nuclear proteins 3A, 3B, and 3C interact with RBPJ(kappa).

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The ability of Epstein-Barr virus (EBV) latent infection nuclear protein EBNA3C to activate transcription of two EBNA2-responsive genes and to inhibit EBNA2 activation of transcription in transient-transfection assays appears to be due to its ability to interact with RBPJkappa, a cell protein that

p53 binds single-stranded DNA ends and catalyzes DNA renaturation and strand transfer.

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The p53 tumor-suppressor protein has previously been shown to bind double-stranded and single-stranded DNA. We report that the p53 protein can bind single-stranded DNA ends and catalyze DNA renaturation and DNA strand transfer. Both a bacterially expressed wild-type p53 protein and a glutathione

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