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Beta-Cell Tumor
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1. Prolactin promotes growth of a spontaneous T cell lymphoma: role of tumor and host derived cytokines.
Match Strength: 7.065

The present study was conducted to investigate the effect of prolactin (PRL) on the progressive growth of a T cell lymphoma. Using a murine model of a transplantable T cell lymphoma, designated as the Dalton's lymphoma (DL) it is shown that in vivo administration of PRL to tumor bearing mice reduces the survival duration of tumor-bearing host due to an augmentation of tumor growth. In vitro studies demonstrated that PRL directly stimulates the proliferation of DL cells in a dose and time dependent manner. PRL-treated DL cells showed an increase in cell size along with a decrease in cells with ... Read More »
» Published in Cancer Invest. 2006 Oct;24(6):601-10.

2. The mesenchyme in cancer therapy as a target tumor component, effector cell modality and cytokine expression vehicle.
Match Strength: 6.874

Tissues and organs harbor a component of supportive mesenchymal stroma. The organ stroma is vital for normal functioning since it expresses factors instructing growth and differentiation along with molecules that restrain these processes. Similarly, the growth of tumors is strictly dependent on the tumor stroma. This review first discusses the possibility of developing tools to block the propagation of the tumor-associated stroma, that may halt tumor progression. It further describes how the tropism of mesenchymal stroma to tumor sites may be utilized to cause regression of the cancerous ... Read More »
» Published in Cancer Metastasis Rev. 2006 Sep;25(3):459-67.

3. The clear cell variant of solid pseudopapillary tumor of the pancreas: a previously unrecognized pancreatic neoplasm.
Match Strength: 6.385

Solid pseudopapillary tumor is a rare but distinctive pancreatic neoplasm whose cell phenotype remains a mystery. We report 3 cases of a previously undescribed variant of solid pseudopapillary tumor of the pancreas composed almost entirely of multivacuolated clear cells (>90%). The cytoplasmic vacuoles did not contain glycogen, mucin, or lipid but seemed to be formed by dilatation of the endoplasmic reticulum and mitochondria. The tumors displayed prominent trabeculae and a solid growth pattern but lacked the characteristic pseudopapillary pattern of the classical solid pseudopapillary ... Read More »
» Published in Am J Surg Pathol. 2006 Oct;30(10):1237-42.

4. Structure-activity relationships of 111In- and 99mTc-labeled quinolin-4-one peptidomimetics as ligands for the vitronectin receptor: potential tumor imaging agents.
Match Strength: 6.351

The integrin receptor alpha(v)beta(3) is overexpressed on the endothelial cells of growing tumors and on some tumor cells themselves. Radiolabeled alpha(v)beta(3) antagonists have demonstrated potential application as tumor imaging agents and as radiotherapeutic agents. This report describes the total synthesis of eight new HYNIC and DOTA conjugates of receptor alpha(v)beta(3) antagonists belonging to the quinolin-4-one class of peptidomimetics, and their radiolabeling with (99m)Tc (for HYNIC) and (111)In (for DOTA). Tethering of the radionuclide-chelator complexes was achieved at two ... Read More »
» Published in Bioconjug Chem. 2006 Sep-Oct;17(5):1294-313.

5. Human telomerase RNA degradation by 2'-5'-linked oligoadenylate antisense chimeras in a cell-free system, cultured tumor cells, and murine xenograft models.
Match Strength: 5.224

Ribonuclease L (RNase L) is a latent single-stranded RNA-directed endoribonuclease that is activated on binding to short 2'-5'-linked oligoadenylates (2-5A), a feature that has led to its use in antisense therapeutic strategies. By attaching a 2-5A moiety to the 5' terminus of standard antisense oligonucleotides, it is possible to activate RNase L and guide it to specific RNAs for degradation. These 2-5A antisense chimeras have been used successfully to target a variety of cellular and viral RNAs. Telomerase is a nuclear ribonucleoprotein complex that elongates telomeric DNA and contributes to ... Read More »
» Published in Oligonucleotides. 2006 Fall;16(3):225-38.

6. STAT3 and MAPK signaling maintain overexpression of heat shock proteins 90alpha and beta in multiple myeloma cells, which critically contribute to tumor-cell survival.
Match Strength: 5.133

The combined blockade of the IL-6R/STAT3 and the MAPK signaling pathways has been shown to inhibit bone marrow microenvironment (BMM)-mediated survival of multiple myeloma (MM) cells. Here, we identify the molecular chaperones heat shock proteins (Hsp) 90alpha and beta as target genes of both pathways. The siRNA-mediated knockdown of Hsp90 or treatment with the novel Hsp90 inhibitor 17-DMAG attenuated the levels of STAT3 and phospho-ERK and decreased the viability of MM cells. Although knockdown of Hsp90beta-unlike knockdown of Hsp90alpha-was sufficient to induce apoptosis, this effect was ... Read More »
» Published in Blood. 2007 Jan 15;109(2):720-8. Epub 2006 Sep 26.

7. Microdosimetric measurements and estimation of human cell survival for heavy-ion beams.
Match Strength: 4.795

The microdosimetric spectra for high-energy beams of photons and proton, helium, carbon, neon, silicon and iron ions (LET = 0.5-880 keV/microm) were measured with a spherical-walled tissue-equivalent proportional counter at various depths in a plastic phantom. Survival curves for human tumor cells were also obtained under the same conditions. Then the survival curves were compared with those estimated by a microdosimetric model based on the spectra and the biological parameters for each cell line. The estimated alpha terms of the liner-quadratic model with a fixed beta value reproduced the ... Read More »
» Published in Radiat Res. 2006 Oct;166(4):629-38.

8. Functions of the Peroxisome Proliferator-Activated Receptor (PPAR) alpha and beta in Skin Homeostasis, Epithelial Repair, and Morphogenesis.
Match Strength: 4.221

The three peroxisome proliferator-activated receptors (PPARalpha, PPARbeta, and PPARgamma) are ligand-activated transcription factors belonging to the nuclear hormone receptor superfamily. They are regarded as being sensors of physiological levels of fatty acids and fatty acid derivatives. In the adult mouse skin, they are found in hair follicle keratinocytes but not in interfollicular epidermis keratinocytes. Skin injury stimulates the expression of PPARalpha and PPARbeta at the site of the wound. Here, we review the spatiotemporal program that triggers PPARbeta expression immediately after ... Read More »
» Published in J Invest Dermatol. 2006 Sep;126 Suppl:30-5.

9. Cytotoxic synergy between the multikinase inhibitor sorafenib and the proteasome inhibitor bortezomib in vitro: induction of apoptosis through Akt and c-Jun NH2-terminal kinase pathways.
Match Strength: 4.183

This study was undertaken to characterize preclinical cytotoxic interactions for human malignancies between the multikinase inhibitor sorafenib (BAY 43-9006) and proteasome inhibitors bortezomib or MG132. Multiple tumor cell lines of varying histiotypes, including A549 (lung adenocarcinoma), 786-O (renal cell carcinoma), HeLa (cervical carcinoma), MDA-MB-231 (breast), K562 (chronic myelogenous leukemia), Jurkat (acute T-cell leukemia), MEC-2 (B-chronic lymphocytic leukemia), and U251 and D37 (glioma), as well as cells derived from primary human glioma tumors that are likely a more clinically ... Read More »
» Published in Mol Cancer Ther. 2006 Sep;5(9):2378-87.

10. RP101 improves the efficacy of chemotherapy in pancreas carcinoma cell lines and pancreatic cancer patients.
Match Strength: 4.096

RP101 [(E)-5-(2-bromovinyl)-2'-deoxyuridine (BVDU)], which supports apoptosis and prevents the acquisition of chemoresistance, was tested in cultured human pancreatic tumor cells. RP101 downregulated uridine phosphorylase, a marker of poor prognosis, and APEX1, which is involved in DNA repair, and repressed Stat3 and its target vascular endothelial growth factor. Furthermore, RP101 activated antitumor immunity as demonstrated by enhanced cytolytic activity of NK-92 natural killer cells. This was concomitant with an enhanced expression of lymphotoxins alpha and beta, natural killer cell ... Read More »
» Published in Anticancer Drugs. 2006 Oct;17(9):1045-56.

11. Insulin resistance in pheochromocytoma improves more by surgical rather than by medical treatment.
Match Strength: 3.990

Pheochromocytoma, a neuroendocrine tumor, is often associated with hyperglycemia. To investigate the underlying pathogenetic mechanisms, five patients (3 women and 2 men, aged 49+/-2.5, mean+/-SD) with benign adrenal pheochromocytoma were studied with an oral glucose tolerance test (OGTT) and the euglycaemic clamp technique. They were studied preoperatively without taking any medication (stage I), after taking an alpha adrenergic receptor blocking agent (stage II), after taking both an alpha and a beta adrenergic receptor blocking agent (stage III), and after surgical removal of the tumor ... Read More »
» Published in Hormones (Athens). 2003 Jan-Mar;2(1):61-6.

12. Mechanism of enhanced hematopoietic response by soluble beta-glucan SCG in cyclophosphamide-treated mice.
Match Strength: 3.973

SCG is a major 6-branched 1,3-beta-D-glucan in Sparassis crispa Fr. SCG shows antitumor activity and also enhances the hematopoietic response in cyclophosphamide (CY)-treated mice. In the present study, the molecular mechanism of the enhancement of the hematopoietic response was investigated. The levels of interferon-(IFN-)gamma, tumor necrosis factor-(TNF-)alpha, granulocyte-macrophage-colony stimulating factor (GM-CSF), interleukin-(IL-) 6 and IL-12p70 were significantly increased by SCG in CY-treated mice. GM-CSF production in the splenocytes from the CY-treated mice was higher than that in ... Read More »
» Published in Microbiol Immunol. 2006;50(9):687-700.

13. SDF-1 alone and in co-operation with HGF regulates biology of human cervical carcinoma cells.
Match Strength: 3.780

Stromal Derived Factor-1 (SDF-1)-CXCR4 axis plays a pivotal role in biology and metastasis of several tumors. The aim of this study was to see if SDF-1 alone or in combination with Hepatocyte Growth Factor (HGF) affects biology of human cervical carcinoma (HCC) cells. We found that HCC cell lines investigated in our study highly express CXCR4 on their surface. CXCR4 was also expressed on tumor cells in tissue sections derived from cervical cancer patients. At the same time normal cervical epithelium was negative for CXCR4 expression what suggests a strong correlation between CXCR4 and ... Read More »
» Published in Folia Histochem Cytobiol. 2006;44(3):155-64.

14. Addressing the soy and breast cancer relationship: review, commentary, and workshop proceedings.
Match Strength: 3.754

The impact of soyfood intake on breast cancer risk has been investigated extensively. Much of this focus can be attributed to the soybean being a dietary source that is uniquely rich in isoflavones. The chemical structure of isoflavones is similar to that of estrogen, and isoflavones bind to both estrogen receptors (ER alpha and ER beta) (although they preferentially bind to and activate ER beta) and exert estrogen-like effects under some experimental conditions. Isoflavones also possess nonhormonal properties that are associated with the inhibition of cancer cell growth. Thus, there are ... Read More »
» Published in J Natl Cancer Inst. 2006 Sep 20;98(18):1275-84.

15. The multifunctional beta-oxidation enzyme is required for full symptom development by the biotrophic maize pathogen Ustilago maydis.
Match Strength: 3.717

The transition from yeast-like to filamentous growth in the biotrophic fungal phytopathogen Ustilago maydis is a crucial event for pathogenesis. Previously, we showed that fatty acids induce filamentation in U. maydis and that the resulting hyphal cells resemble the infectious filaments observed in planta. To explore the potential metabolic role of lipids in the morphological transition and in pathogenic development in host tissue, we deleted the mfe2 gene encoding the multifunctional enzyme that catalyzes the second and third reactions in beta-oxidation of fatty acids in peroxisomes. The ... Read More »
» Published in Eukaryot Cell. 2006 Dec;5(12):2047-61. Epub 2006 Sep 22.

16. Effect of pH and human serum albumin on the cytotoxicity of a glucuronide prodrug of 9-aminocamptothecin.
Match Strength: 3.622

PURPOSE : 9-aminocamptothecin glucuronide (9ACG) is a prodrug of 9-aminocamptothecin (9AC) that displays potent antitumor activity against human tumor xenografts in nude mice. Camptothecins exist in a pH dependent equilibrium between active lactone and inactive carboxy forms that can be altered by binding to human serum albumin (HSA). Here we investigated the influence of pH and HSA on the lactone-carboxy equilibrium, HSA binding, and cytotoxicity of 9ACG. METHODS : Microfiltration and HPLC were used to measure the influence of pH on lactone to carboxy conversion and HSA binding of 9ACG as ... Read More »
» Published in Cancer Chemother Pharmacol. 2006 Sep 16;

17. Inhaled fluticasone and salmeterol suppress eosinophilic airway inflammation in chronic obstructive pulmonary disease: relations with lung function and bronchodilator reversibility.
Match Strength: 3.391

The aim of this study was to determine whether combined inhaled corticosteroids and long-acting beta(2) agonists can suppress eosinophilic inflammation in chronic dostructive plumonary disease (COPD) and to investigate the association between the level of eosinophilia and the degree of bronchodilator reversibility. Sixty-two patients with stable COPD (forced expiratory volume in 1 [FEV(1)] of 30%-70% predicted before bronchodilation) were enrolled from our outpatient clinic. Patients received inhaled fluticasone (100 microg)/salmeterol (50 microg) twice daily for two months. Lung function ... Read More »
» Published in Lung. 2006 Jul-Aug;184(4):217-22.

18. High-density oligonucleotide microarrays and functional network analysis reveal extended lung carcinogenesis pathway maps and multiple interacting genes in NNK [4-(methylnitrosamino)-1-(3-pyridyle)-1-butanone] induced CD1 mouse lung tumor.
Match Strength: 3.358

PURPOSE: NNK [4-(methylnitrosamino)-1-(3-pyridyle)-1-butanone] is a nicotine-derived nitrosaminoketone contained in tobacco smoke used as a powerful chemical carcinogen for rodent experimental models of pulmonary carcinogenesis. To clarify its carcinogenetic mechanisms, we examined the expression status of 22,625 mouse genes. METHODS: The affymetrix GeneChip mouse expression 430 A arrays have been used in CD1-induced mouse lung tumor. The affected genes were analyzed by Ingenuity pathway analysis to investigate functional network and gene ontology. RESULTS: A total of 876 genes were found to ... Read More »
» Published in J Cancer Res Clin Oncol. 2007 Feb;133(2):107-15. Epub 2006 Sep 15.

19. Does transforming growth factor-beta1 predict for radiation-induced pneumonitis in patients treated for lung cancer?
Match Strength: 3.234

The purpose of the study was to reassess the utility of transforming growth factor-beta-1 (TGF-beta1) together with dosimetric and tumor parameters as a predictor for radiation pneumonitis (RP). Of the 121 patients studied, 32 (26.4%) developed grade > or =1 RP, and 27 (22.3%) developed grade > or =2 RP. For the endpoint of grade > or =1 RP, those with V30>30% and an end-RT/baseline TGF-beta1 ratio> or =1 had a significantly higher incidence of RP than did those with V30>30% and an end-RT/baseline TGF-beta1 ratio<1. For most other patient groups, there were no clear ... Read More »
» Published in Cytokine. 2006 Aug;35(3-4):186-92. Epub 2006 Sep 18.

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