MACROPHAGE INFLAMMATORY PROTEIN (MIP)-1-ALPHA STEM-CELL INHIBITOR (SCI) DOES NOT AFFECT CLONAL GROWTH OF HUMAN SOLID TUMOR-CELL LINES IN-VITRO

1994 ◽  
Author(s):  
A KORFEL ◽  
Z VONMARSCHALL ◽  
M KOENIGSMANN ◽  
D OBERBERG ◽  
B REUFI ◽  
...  
Keyword(s):  
Stem Cell ◽  
Tumor Cell ◽  
Cell Lines ◽  
Solid Tumor ◽  
Clonal Growth ◽  
Tumor Cell Lines ◽  
Inflammatory Protein ◽  
Human Solid Tumor ◽  
Macrophage Inflammatory Protein

scholarly journals Cytotoxic Bioactivity of Some Phenylpropanoic Acid Derivatives

2012 ◽  
Vol 7 (10) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Guillermo F. Reta ◽  
Carlos E. Tonn ◽  
Carla Ríos-Luci ◽  
Leticia G. León ◽  
Eduardo Pérez-Roth ◽  
...  
Keyword(s):  
Tumor Cell ◽  
Cell Lines ◽  
Solid Tumor ◽  
Tumor Cell Lines ◽  
Molecular Scaffold ◽  
Human Solid Tumor ◽  
Antiproliferative Activities

In this study, we synthesized a series of phenylpropanoic acid derivatives based on modifications at four selected points of the molecular scaffold. The in vitro antiproliferative activities of the compounds were examined in representative human solid tumor cell lines. A SAR was established pointing out the relevance of the substituents. The best activity profiles were obtained for the derivatives bearing more lipophilic esters (GI50 3.1-21 μM).

Defibrotide (DF) Targets Tumor-Microenvironmental Interactions and Sensitizes Multiple Myeloma and Solid Tumor Cells to Cytotoxic Chemotherapeutics.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 286-286 ◽  
Author(s):  
Constantine S. Mitsiades ◽  
Cecile Rouleau ◽  
Krishna Menon ◽  
Beverly Teicher ◽  
Massimo Iacobelli ◽  
...  
Keyword(s):  
Stem Cell ◽  
Tumor Cell ◽  
Tumor Cells ◽  
Cell Lines ◽  
Solid Tumor ◽  
Single Agent ◽  
Conventional Chemotherapy ◽  
Adhesive Properties

Abstract Introduction: Defibrotide (DF) is a polydisperse oligonucleotide with anti-thrombotic, thrombolytic, anti-ischemic, and anti-adhesive properties, which selectively targets the microvasculature and has minimal hemorrhagic risk. DF is an effective treatment for veno-occlusive disease (VOD), an important regimen-related toxicity in stem cell transplantation characterized by endothelial cell injury. DF also augments stem cell mobilization by modulating adhesion in vivo. Because of its cytoprotective effect on the endothelium, we specifically investigated whether DF protects tumor cells from cytotoxic anti-tumor agents. Further, because of its broad anti-adhesive properties, we evaluated whether DF modulates the interaction of MM cells with bone marrow stromal cells (BMSCs), which confers growth, survival and drug resistance in the BM milieu. Methods: In vitro studies in isogenic dexamethasone (Dex)-sensitive and resistant MM cell lines (MM-1S and MM1R, respectively) showed that DF does not attenuate the sensitivity of MM cells to Dex, the proteasome inhibitor bortezomib (PS-341), melphalan (MEL), vinca alkaloids (vincristine, vinblastine), taxanes (paclitaxel) or platinum (cisplatin), but does decrease their sensitivity to doxorubicin. These selective effects in vitro of DF in protecting tumor cells against doxorubicin and modestly sensitizing MM cells to platinum was also confirmed in solid tumor breast (MCF-7) and colon (HT-29) carcinoma cell lines. Although DF had minimal in vitro inhibitory effect on MM or solid tumor cell growth in vitro, it showed in vivo activity as a single agent and enhanced the responsiveness of MM tumors to cytotoxic chemotherapeutics, such as MEL or cyclophosphamide, in human MM xenografts in SCID/NOD mice. The in vivo single-agent activity and chemosensitizing properties of DF, coupled with its lack of major in vitro activity, suggested that DF may not directly target tumor cells, but rather modulate tumor cell interaction with BMSCs. In an ex vivo model of co-culture of primary MM tumor cells with BMSCs (which protects MM cells against conventional chemotherapy), DF alone had a only modest effect on tumor cell viability, but it significantly enhanced MM cell sensitivity to cytotoxic chemotherapy (e.g. MEL), suggesting that a major component of the biological effects of DF may be attributable not to direct targeting of tumor cells, but to modulation of the interactions that tumor cells develop with the local stromal milieu. Conclusion: Our studies show that DF mediates in vivo anti-MM activity by abrogating interactions of MM cells with their BM milieu, thereby enhancing sensitivity and overcoming resistance to conventional chemotherapy. These data support future clinical trials of DF, in combination with both conventional and novel therapies, to improve patient outcome in MM.

Antiproliferative activity of novel benzo[b][1,6]naphthyridines in human solid tumor cell lines

2010 ◽  
Vol 20 (5) ◽  
pp. 1504-1506 ◽  
Author(s):  
Simonas Rudys ◽  
Carla Ríos-Luci ◽  
Eduardo Pérez-Roth ◽  
Inga Cikotiene ◽  
José M. Padrón
Keyword(s):  
Tumor Cell ◽  
Cell Lines ◽  
Solid Tumor ◽  
Antiproliferative Activity ◽  
Tumor Cell Lines ◽  
Human Solid Tumor

scholarly journals Lipophilic Salirasib analogs with enhanced antiproliferative activity against human solid tumor cell lines

2021 ◽  
Author(s):  
Exequiel O. J. Porta ◽  
María Sol Ballari ◽  
José M. Padrón ◽  
Guillermo R. Labadie
Keyword(s):  
Tumor Cell ◽  
Cell Lines ◽  
Cancer Cell ◽  
Solid Tumor ◽  
Antiproliferative Activity ◽  
In Silico ◽  
Tumor Cell Lines ◽  
Human Solid Tumor ◽  
Physicochemical Features ◽  
Sar Analysis

Aim: We proposed to determine the antiproliferative activity of a series of synthetic salirasib analogs, presenting or not a 1,2,3-triazole linker, against five different cancer cell lines. Results: Bioassay, cheminformatic, and in silico ADME-Tox allowed the identification of new potent analogs. SAR analysis allowed the identification of structural and physicochemical features that benefit the antiproliferative activity. Conclusion: Isoprenyl R chains with three or more isoprene units, or long aliphatic R chains are the preferred ones within the active compounds. Likewise, we have identified three compounds with better activity profiles than salirasib against all the cell lines tested.

scholarly journals Glutamine as a Regulator of DNA and Protein Biosynthesis in Human Solid Tumor Cell Lines

1996 ◽  
Vol 224 (2) ◽  
pp. 189-197 ◽  
Author(s):  
Masafumi Wasa ◽  
Barrie P. Bode ◽  
Steven F. Abcouwer ◽  
Cynthia L. Collins ◽  
Kenneth K. Tanabe ◽  
...  
Keyword(s):  
Tumor Cell ◽  
Cell Lines ◽  
Solid Tumor ◽  
Protein Biosynthesis ◽  
Tumor Cell Lines ◽  
Human Solid Tumor
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