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  1. Article ; Online: Antiangiogenic therapies for advanced hepatocellular carcinoma.

    Sampat, Keeran R / O'Neil, Bert

    The oncologist

    2013  Volume 18, Issue 4, Page(s) 430–438

    Abstract: Hepatocellular carcinoma (HCC) is a significant cause of death worldwide. HCC is a highly vascular tumor, and proangiogenic cytokines such as vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), and fibroblast growth factor ... ...

    Abstract Hepatocellular carcinoma (HCC) is a significant cause of death worldwide. HCC is a highly vascular tumor, and proangiogenic cytokines such as vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), and fibroblast growth factor may play crucial roles in this disease. Sorafenib, a multikinase inhibitor that blocks VEGF and PDGF signaling, was the first systemic therapy to demonstrate improved survival in patients with advanced HCC. Several other drugs targeting VEGF are in development. Because of the anticipation of eventual resistance to anti-VEGF therapies, drugs that also target alternative proangiogenic pathways are being investigated. Recent clinical and preclinical data along with ongoing studies are reviewed.
    MeSH term(s) Angiogenesis Inhibitors/genetics ; Angiogenesis Inhibitors/therapeutic use ; Carcinoma, Hepatocellular/drug therapy ; Carcinoma, Hepatocellular/genetics ; Carcinoma, Hepatocellular/pathology ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/therapeutic use ; Humans ; Liver Neoplasms/drug therapy ; Liver Neoplasms/genetics ; Liver Neoplasms/pathology ; Molecular Targeted Therapy ; Neovascularization, Pathologic/drug therapy ; Neovascularization, Pathologic/genetics ; Neovascularization, Pathologic/pathology ; Niacinamide/analogs & derivatives ; Niacinamide/therapeutic use ; Phenylurea Compounds/therapeutic use ; Platelet-Derived Growth Factor/genetics ; Platelet-Derived Growth Factor/therapeutic use ; Sorafenib ; Vascular Endothelial Growth Factor A/genetics ; Vascular Endothelial Growth Factor A/metabolism
    Chemical Substances Angiogenesis Inhibitors ; Phenylurea Compounds ; Platelet-Derived Growth Factor ; Vascular Endothelial Growth Factor A ; Niacinamide (25X51I8RD4) ; Fibroblast Growth Factors (62031-54-3) ; Sorafenib (9ZOQ3TZI87)
    Language English
    Publishing date 2013-04-10
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1409038-7
    ISSN 1549-490X ; 1083-7159
    ISSN (online) 1549-490X
    ISSN 1083-7159
    DOI 10.1634/theoncologist.2012-0388
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pleural effusions in patients with acute leukemia and myelodysplastic syndrome.

    Faiz, Saadia A / Bashoura, Lara / Lei, Xiudong / Sampat, Keeran R / Brown, Tiffany C / Eapen, George A / Morice, Rodolfo C / Ferrajoli, Alessandra / Jimenez, Carlos A

    Leukemia & lymphoma

    2012  Volume 54, Issue 2, Page(s) 329–335

    Abstract: Pleural effusions are rarely observed in patients with acute myelogenous leukemia (AML), acute lymphocytic leukemia (ALL) and myelodysplastic syndrome (MDS)/myeloproliferative neoplasm (MPN). Therefore the underlying etiology of pleural effusions and the ...

    Abstract Pleural effusions are rarely observed in patients with acute myelogenous leukemia (AML), acute lymphocytic leukemia (ALL) and myelodysplastic syndrome (MDS)/myeloproliferative neoplasm (MPN). Therefore the underlying etiology of pleural effusions and the efficacy and safety of pleural procedures in this population has not been well studied. In a retrospective review of cases from 1997 to 2007, we identified 111 patients with acute leukemia or MDS/MPN who underwent pleural procedures. Clinical characteristics were reviewed, and survival outcomes were estimated by Kaplan-Meier methods. A total of 270 pleural procedures were performed in 111 patients (69 AML, 27 ALL, 15 MDS/MPN). The main indications for pleural procedures were possible infection (49%) and respiratory symptoms (48%), and concomitant clinical symptoms included fever (34%), dyspnea (74%), chest pain (24%) and cough (37%). Most patients had active disease (61%). The most frequent etiology of pleural effusions was infection (47%), followed by malignancy (36%). Severe thrombocytopenia (platelet count < 20 × 10(3)/µL) was present in 43% of the procedures, yet the procedural complication rate was only 1.9%. Multivariate analysis revealed that older age, AML, MDS/MPN and active disease status were associated with a shorter median overall survival. Infection and malignant involvement are the most common causes of pleural effusion in patients with acute leukemia or MDS. After optimizing platelet count and coagulopathy, thoracentesis may be performed safely and with high diagnostic yield in this population. Survival in these patients is determined by the response to treatment of the hematologic malignancy.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Leukemia, Myeloid, Acute/complications ; Leukemia, Myeloid, Acute/mortality ; Male ; Middle Aged ; Myelodysplastic Syndromes/complications ; Myelodysplastic Syndromes/mortality ; Pleural Effusion/complications ; Pleural Effusion/diagnosis ; Pleural Effusion/etiology ; Pleural Effusion/therapy ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/complications ; Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality ; Retrospective Studies ; Young Adult
    Language English
    Publishing date 2012-09-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1042374-6
    ISSN 1029-2403 ; 1042-8194
    ISSN (online) 1029-2403
    ISSN 1042-8194
    DOI 10.3109/10428194.2012.713478
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Whole-blood gene expression profiling in ankylosing spondylitis shows upregulation of toll-like receptor 4 and 5.

    Assassi, Shervin / Reveille, John D / Arnett, Frank C / Weisman, Michael H / Ward, Michael M / Agarwal, Sandeep K / Gourh, Pravitt / Bhula, Jiten / Sharif, Roozbeh / Sampat, Keeran / Mayes, Maureen D / Tan, Filemon K

    The Journal of rheumatology

    2010  Volume 38, Issue 1, Page(s) 87–98

    Abstract: Objective: to identify differentially expressed genes in peripheral blood cells (PBC) of patients with ankylosing spondylitis (AS) relative to healthy controls and controls with systemic inflammation.: Methods: we investigated PBC samples of 16 ... ...

    Abstract Objective: to identify differentially expressed genes in peripheral blood cells (PBC) of patients with ankylosing spondylitis (AS) relative to healthy controls and controls with systemic inflammation.
    Methods: we investigated PBC samples of 16 patients with AS and 14 matched controls, in addition to systemic lupus erythematosus (SLE) and systemic sclerosis (SSc) samples utilizing Illumina Human Ref-8 BeadChips. Candidate genes were confirmed using quantitative PCR. Subsequently, these genes were also validated in a separate sample of 27 patients with AS [before and after anti-tumor necrosis factor (anti-TNF) treatment] and 27 matched controls.
    Results: we identified 83 differentially expressed transcripts between AS patients and controls. This gene list was filtered through the lists of differentially expressed transcripts in SLE and SSc, which resulted in identification of 52 uniquely dysregulated transcripts in AS. Many of the differentially expressed genes belonged to Toll-like receptor (TLR) and related pathways. TLR4 and TLR5 were the only dysregulated TLR subtypes among AS patients. We confirmed the overexpression of TLR4 and TLR5 in AS patients in comparison to controls (p = 0.012 and p = 0.006, respectively) and SLE (p = 0.002, p = 0.008) using quantitative PCR in the same sample. Similarly, TLR4 (p = 0.007) and TLR5 (p = 0.012) were significantly upregulated among the AS patients before anti-TNF treatment in the confirmatory sample. TLR4 (p = 0.002) and TLR5 (p = 0.025) decreased significantly after anti-TNF treatment.
    Conclusion: PBC gene expression profiling in AS shows an upregulation of TLR4 and TLR5. This supports the importance of TLR subtypes in the pathogenesis of AS that are responsible for the immune response to Gram-negative bacteria.
    MeSH term(s) Adult ; Female ; Gene Expression Profiling/methods ; Humans ; Male ; Middle Aged ; Oligonucleotide Array Sequence Analysis/methods ; Spondylitis, Ankylosing/drug therapy ; Spondylitis, Ankylosing/genetics ; Spondylitis, Ankylosing/metabolism ; Toll-Like Receptor 4/genetics ; Toll-Like Receptor 4/metabolism ; Toll-Like Receptor 5/genetics ; Toll-Like Receptor 5/metabolism ; Tumor Necrosis Factor-alpha/antagonists & inhibitors ; Up-Regulation
    Chemical Substances Toll-Like Receptor 4 ; Toll-Like Receptor 5 ; Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2010-10-15
    Publishing country Canada
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, N.I.H., Intramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 194928-7
    ISSN 1499-2752 ; 0315-162X
    ISSN (online) 1499-2752
    ISSN 0315-162X
    DOI 10.3899/jrheum.100469
    Database MEDical Literature Analysis and Retrieval System OnLINE

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