2009
Vanhara, Petr; Lincová, Eva; Kozubík, Alois; Jurdic, Pierre; Soucek, Karel; Smarda, Jan
Growth/differentiation factor-15 inhibits differentiation into osteoclasts–a novel factor involved in control of osteoclast differentiation. Journal Article
In: Differentiation; research in biological diversity, vol. 78, no. 4, pp. 213–222, 2009, ISSN: 1432-0436 0301-4681, (Place: England).
Abstract | Links | BibTeX | Tags: Acid Phosphatase/metabolism, Animals, Calcitriol/pharmacology, Carbonic Anhydrase II/antagonists & inhibitors, Cathepsin K/antagonists & inhibitors/genetics, Cell Differentiation/*drug effects, Cell Line, Conditioned/pharmacology, Culture Media, Dose-Response Relationship, Drug, Femur/cytology, Growth Differentiation Factor 15/*pharmacology, Humans, Inbred Strains, Isoenzymes/metabolism, Macrophage Colony-Stimulating Factor/pharmacology, Macrophages/cytology, Male, Mice, NF-kappa B/antagonists & inhibitors, Osteoclasts/*drug effects/metabolism, Prostatic Neoplasms/metabolism, Proto-Oncogene Proteins c-fos/antagonists & inhibitors, RANK Ligand/pharmacology, Tartrate-Resistant Acid Phosphatase, Time Factors, Tumor
@article{vanhara_growthdifferentiation_2009,
title = {Growth/differentiation factor-15 inhibits differentiation into osteoclasts–a novel factor involved in control of osteoclast differentiation.},
author = {Petr Vanhara and Eva Lincová and Alois Kozubík and Pierre Jurdic and Karel Soucek and Jan Smarda},
doi = {10.1016/j.diff.2009.07.008},
issn = {1432-0436 0301-4681},
year = {2009},
date = {2009-11-01},
journal = {Differentiation; research in biological diversity},
volume = {78},
number = {4},
pages = {213–222},
abstract = {Survival and capability of cancer cells to form metastases fundamentally depend on interactions with their microenvironment. Secondary tumors originating from prostate carcinomas affect remodeling of bone tissue and can induce both osteolytic and osteocondensing lesions. However, particular molecular mechanisms responsible for selective homing and activity of cancer cells in bone microenvironment have not been clarified yet. Growth/differentiation factor-15 (GDF-15), a distant member of the TGF-beta protein family, has recently been associated with many human cancers, including prostate. We show that both pure GDF-15 and the GDF-15-containing growth medium of 1,25(OH)(2)-vitamin D(3)-treated prostate adenocarcinoma LNCaP cells suppress formation of mature osteoclasts differentiated from RAW264.7 macrophages and bone-marrow precursors by M-CSF/RANKL in a dose-dependent manner. GDF-15 inhibits expression of c-Fos and activity of NFkappaB by delayed degradation of IkappaB. Moreover, GDF-15 inhibits expression of carbonic anhydrase II and cathepsin K, key osteoclast enzymes, and induces changes in SMAD and p38 signaling. The lack of functional osteoclasts can contribute to accumulation of bone matrix by reduction of bone resorption. These results unveil new role of GDF-15 in modulation of osteoclast differentiation and possibly in therapy of bone metastases.},
note = {Place: England},
keywords = {Acid Phosphatase/metabolism, Animals, Calcitriol/pharmacology, Carbonic Anhydrase II/antagonists & inhibitors, Cathepsin K/antagonists & inhibitors/genetics, Cell Differentiation/*drug effects, Cell Line, Conditioned/pharmacology, Culture Media, Dose-Response Relationship, Drug, Femur/cytology, Growth Differentiation Factor 15/*pharmacology, Humans, Inbred Strains, Isoenzymes/metabolism, Macrophage Colony-Stimulating Factor/pharmacology, Macrophages/cytology, Male, Mice, NF-kappa B/antagonists & inhibitors, Osteoclasts/*drug effects/metabolism, Prostatic Neoplasms/metabolism, Proto-Oncogene Proteins c-fos/antagonists & inhibitors, RANK Ligand/pharmacology, Tartrate-Resistant Acid Phosphatase, Time Factors, Tumor},
pubstate = {published},
tppubtype = {article}
}
2003
Nemajerová, Alice; Smarda, Jan; Jurdic, Pierre; Kubala, Lukás; Soucek, Karel; Smardová, Jana
Trichostatin A suppresses transformation by the v-myb oncogene in BM2 cells. Journal Article
In: Journal of hematotherapy & stem cell research, vol. 12, no. 2, pp. 225–235, 2003, ISSN: 1525-8165, (Place: United States).
Abstract | Links | BibTeX | Tags: Acetylation, Animals, Cell Cycle, Cell Differentiation, Cell Line, Cell Transformation, Chickens, Chromatin Assembly and Disassembly/physiology, Genes, Histone Deacetylases/drug effects, Histones/metabolism/physiology, Hydroxamic Acids/*pharmacology, Macrophages/cytology, myb/drug effects/*physiology, Transformed, Viral/*drug effects
@article{nemajerova_trichostatin_2003,
title = {Trichostatin A suppresses transformation by the v-myb oncogene in BM2 cells.},
author = {Alice Nemajerová and Jan Smarda and Pierre Jurdic and Lukás Kubala and Karel Soucek and Jana Smardová},
doi = {10.1089/152581603321628368},
issn = {1525-8165},
year = {2003},
date = {2003-04-01},
journal = {Journal of hematotherapy & stem cell research},
volume = {12},
number = {2},
pages = {225–235},
abstract = {BM2 cells are chicken monoblasts transformed by the v-myb oncogene of avian myeloblastosis virus. The constitutively high v-myb expression interferes with the terminal differentiation of BM2 cells, but these cells can be induced to differentiate into macrophage-like cells by phorbol esters. Histone acetylation plays an important role in regulation of transcription and is particularly relevant to the regulation and pathology of hematopoiesis. In the present study, we examined the contribution of elevated histone acetylation to the differentiation of BM2 cells. Inhibition of the activity of endogenous histone deacetylases by trichostatin A (TSA) resulted in histone hyperacetylation causing cell cycle arrest and differentiation of BM2 cells into macrophage polykaryons. TSA did not affect the level of v-Myb protein in BM2 cells, but it downregulated its transcription activation capability. This suggests that chromatin remodeling can be significantly engaged in regulation of proliferation and differentiation of leukemic cells.},
note = {Place: United States},
keywords = {Acetylation, Animals, Cell Cycle, Cell Differentiation, Cell Line, Cell Transformation, Chickens, Chromatin Assembly and Disassembly/physiology, Genes, Histone Deacetylases/drug effects, Histones/metabolism/physiology, Hydroxamic Acids/*pharmacology, Macrophages/cytology, myb/drug effects/*physiology, Transformed, Viral/*drug effects},
pubstate = {published},
tppubtype = {article}
}