objective(s):degradation of sphingosine 1-phosphate (s1p), as a bioactive lipid, or deregulation of its production involves in tumor progression, metastasis and chemoresistance. since the tumor progression effects of s1p and its mechanism in chronic lymphoblastic leukemia and non-small cell lung cancer is not fully understood, we investigated the role and one of the mechanisms of s1p in tumor p...

the aim of this work was to see whether tamarin immunisation with recombinant vaccinia virus expressing epstein barr virus latent proteins could prime t cells which were, on activation, able to inhibit the outgrowth of epstein barr virus transformed cells in vitro. the vaccination appeared to be successful as all vaccinated tamarins developed vaccinia lesions. however, the vaccination protocol ...

Objective(s):Degradation of sphingosine 1-phosphate (S1P), as a bioactive lipid, or deregulation of its production involves in tumor progression, metastasis and chemoresistance. Since the tumor progression effects of S1P and its mechanism in chronic lymphoblastic leukemia and non-small cell lung cancer is not fully understood, we investigated the role and one of the mechanisms of S1P in tumor p...

Background and Objective: Vascular endothelial growth factor (VEGF) is a cytokine which is overexpressed in many malignant cancers including leukemia. VEGF plays an important role in tumor invasion and metastasis. Determination of the pattern of VEGF expression in human leukemic cell lines could be useful not only in screening of new antileukemic agents but also to study the mechanism of their ...

two set of 2-aryl-5,6-dihydropyrrolo[2,1-a] isoquinolines were designed and synthesized to evaluate their biological activities as topoisomerase inhibitors. cytotoxic activity of the synthesized compounds 4a-e and 7a-d was assessed against several human cancer cell lines, including mcf-7 (breast cancer cell), hepg2 (liver hepatocellular cells), a549 (adenocarcinomic human alveolar basal epithel...

T cell-mediated immune responses can control in vivo cutaneous squamous cell carcinoma (cSCC) growth, but the determinants of anti-tumor are not fully understood. To address this need, we developed a murine model cSCC induced by same etiologic factor as human disease which allows for evaluation tumor-specific responses. Solar simulated light tumors from BALB/c mice were used to create panel six...

olea europaea l. commonly known as olive has been traditionally used for the prevention and treatment of many diseases since ancient times. olive has been reported to possess a broad spectrum of pharmacological properties. in the present study we investigated the activity of aqueous extract of olea europaea l. fruit at various concentrations on a2780, a172 and hfff2 cell lines proliferation by ...

testicular germ-cell tumors are the most common malignancy among men aged 20-40 years, and 60 percent of them are seminomas. these tumors are now an important socio-economic problem, considering their growing incidence. thus we undertook to evaluate the results of curative irradiation in our testicular seminoma patients and compare them to literature results considering the use of cobalt-60 sys...

glioblastoma is the most common and the most lethal primary brain cancer. this malignancy is highly locally invasive, rarely metastatic and resistant to current therapies. little is known about the distinct molecular biology of glioblastoma multiforme (gbm) in terms of initiation and progression. so far, several molecular mechanisms have been suggested to implicate in gbm development. homeodoma...