Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.5.1.18 (glutathione S-transferase)
 22,582 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Polymorphisms in detoxification enzymes of the glutathione S-transferase (GST) family have been associated with risk and prognosis of several cancer types. We studied deletions of GSTM1 and GSTT1, and the GSTP1 Ile(105)Val polymorphism in 89 patients with follicular lymphoma (FL). Patients with a GSTM1 or GSTT1 deletion had a significantly worse event-free survival, when compared with patients with undeleted genotype (p = 0.03 and p = 0.03, respectively). Outcome was even worse in patients with a double negative genotype, in comparison with patients with only one GST deletion or normal genotype (p = 0.01). In the multivariate analysis, the GSTM1/GSTT1 genotype tended to have a prognostic significance independent from the Follicular Lymphoma International Prognostic Index (FLIPI) score. In particular, GSTM1/T1 deletions identified patients with negative prognosis in the low (<3) FLIPI score group (p = 0.01). Larger prospective studies including homogeneously treated patients will be needed to confirm these results.
 ...
PMID:Glutathione-S-transferase genotypes influence prognosis in follicular non-Hodgkin's Lymphoma. 1745

Metabolic pathway enzymes, such as Cytochrome P450 (CYP), glutathione S-transferase (GST), and N-acetyltransferases (NAT) are involved in activation and detoxification of environmental carcinogens as well as drug metabolism. We hypothesized that the genetic variations in such metabolic pathways may affect NHL prognosis and survival. Follow-up information of 496 female NHL incident cases diagnosed during 1996-2000 in Connecticut were abstracted from the Connecticut Tumor Registry in 2008; survival analyses were conducted by comparing the Kaplan-Meier curves, and hazard ratios (HR) were computed from the Cox Proportional Hazard models adjusting for demographic and tumor characteristics which were suggested by previous studies to be determinants of NHL survival. We identified six SNPs from four metabolism genes (CYP2E1, GSTP1, GSTT1, and NAT1) that were associated with NHL survival. Specifically, polymorphisms in GSTT1 were associated with follicular lymphoma survival; and polymorphisms in CYP2E1, GSTP1, and NAT1 were associated with survival of chronic lymphocytic leukemia/small lymphocytic lymphoma. Our study suggests that genetic polymorphisms in metabolic pathways may help improve the prediction of NHL survival and prognosis.
 ...
PMID:Genetic polymorphisms in the metabolic pathway and non-Hodgkin lymphoma survival. 2002 44

DOCK2; a member of the CDM protein family, regulates cell motility and cytokine production through the activation of Rac in mammalian hematopoietic cells and plays a pivotal role in the modulation of the immune system. Here we demonstrated the alternative function of DOCK2 in hematopoietic tumor cells, especially in terms of its association with the tumor progression. Immunostaining for DOCK2 in 20 cases of human B cell lymphoma tissue specimens including diffuse large B cell lymphoma and follicular lymphoma revealed the prominent expression of DOCK2 in all of the lymphoma cells. DOCK2-knockdown (KD) of the B cell lymphoma cell lines, Ramos and Raji, using the lentiviral shRNA system presented decreased cell proliferation compared to the control cells. Furthermore, the tumor formation of DOCK2-KD Ramos cell in nude mice was significantly abrogated. Western blotting analysis and pull-down assay using GST-PAK-RBD kimeric protein suggested the presence of DOCK2-Rac-ERK pathway regulating the cell proliferation of these lymphoma cells. This is the first report to clarify the prominent role of DOCK2 in hematopoietic malignancy.
 ...
PMID:DOCK2 regulates cell proliferation through Rac and ERK activation in B cell lymphoma. 2035 May 33