Effect of YKL-40 on melanoma proliferation in a mouse model.
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE217590 | GEO | 2024/09/10
REPOSITORIES: GEO
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Project description:Effect of YKL-40 on melanoma proliferation in a mouse model.
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Project description:Global gene expression profiling reveals a potential anti-melanoma effect of SQ-diEG in B16F10 lung colonization mice model. Squalene (SQ) was considered as a promising natural agent in anti-cancer treatment due to its strong antioxidant and anti-inflammatory activity; however, its pharmacological value has been largely underestimated because of its poor solubility and bioavailability. To adress this problem, a novel amphiphilic SQ derivative which bearing ethylene glycol oligomers was synthesized and was used as a permeation enhancer in this study to check its potential effect on anti-melanoma metastasis using B16F10 lung colonization mice model. Total 40 six years old male C57BL/6J mice were randomly divided into five groups (8 mice per group), including the control "(-)B16F10 injected and water treated"; the model "(+) B16F10 injected and water treated"; the positive control "(+) B16F10 injected and DTIC treated (Dacarbazine, 70 mg/kg/day)"; the SQ-diEG treatment "(+) B16F10 injected and SQ-diEG treated (5 mg/kg/day)"; the SQ-diEG treatment "(+) B16F10 injected and SQ-diEG treated (25 mg/kg/day)". After one week of acclimatization, B16F10 were murine melanoma cells line which intravenously injected (200000 tumor cells in 100 μl PBS, 0.2 ml/mouse) through the tail vein of mice. Mice was orally administrated with Dacarbazine (DTIC, positive control, 70mg/kg), and SQ-diEG (5mg/kg and 25mg/kg) for 20 days. On the last day of administration, mice was sacrificed and its lung was washed and collect for the further RNA extraction. Finally, the mice microarray gene expression profiling was conducted for two biological replicates.
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Project description:To explore what could distinguish the difference in the function of YKL-40 in GSCs, we performed RNA-Seq to identify the molecular subclasses of each GSC
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Project description:Global gene expression profiling reveals a potential anti-melanoma effect of SQ-diEG in B16F10 cells. Squalene (SQ) was considered as a promising natural agent in anti-cancer treatment due to its strong antioxidant and anti-inflammatory activity; however, its pharmacological value has been largely underestimated because of its poor solubility and bioavailability. To adress this problem, a novel amphiphilic SQ derivative which bearing ethylene glycol oligomers was synthesized and was used as a permeation enhancer in this study to check its potential effect on anti-melanoma using B16F10 cells B16F10 were murine melanoma cells line, treated with 2.5 µM and 40 µM with all samples for 48 h. Microarray gene expression profiling was conducted for two biological replicates
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Project description:Paraburkholderia sp. 40 strain:40 Genome sequencing
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Project description:The effect of TIM-3 stimulation was studied on B16F10 mouse melanoma cells, in vitro. Experiment Overall Design: Cy3: B16F10 mouse melanoma cells, treated by unspecific goat IgG (control) for 2 hours. Experiment Overall Design: Cy5: B16F10 mouse melanoma cells, in vitro, treated by an agonist goat polyclonal anti-mouse TIM3 antibody (RnD Systems) for 2 hours. Experiment Overall Design: Four biological replicates were used (in this study, biological replicate means different passage numbers of the same cell line). In each case, the treated sample (Cy5) was compared to its control one (Cy3) in Agilent dual-color microarray experiments.
2009-10-15 | E-GEOD-14418 | biostudies-arrayexpress
Project description:Caloric restriction (CR) without malnutrition is one of the most consistent strategies for increasing mean and maximal lifespan and delaying the onset of age-associated diseases. Stress resistance is a common trait of many long-lived mutants and life-extending interventions, including CR. Indeed, better protection against heat shock and other genotoxic insults have helped explain the pro-survival properties of CR. In this study, both in vitro and in vivo responses to heat shock were investigated using two different models of CR. Murine B16F10 melanoma cells treated with serum from CR-fed rats showed lower proliferation, increased tolerance to heat shock and enhanced HSP-70 expression, compared to serum from ad libitum-fed animals. Similar effects were observed in B16F10 cells implanted subcutaneously in male C57BL/6 mice subjected to CR. Microarray analysis identified a number of genes and pathways whose expression profile were similar in both models. These results suggest that the use of an in vitro model could be a good alternative to study the mechanisms by which CR exerts its anti-tumorigenic effects. KEY WORDS: caloric restriction, heat shock, stress response, tumorigenesis, aging In Vivo: Male C57BL/6 mice (3 month old) were single-housed in duplex caging in a room maintained at a constant temperature (20-22 °C) and humidity (30-70%) in a light:dark 12:12-h schedule, according to established animal protocols and NIH guidelines. They were fed either a standard purified mouse diet (NIH-31) ad libitum (AL; n=10) or maintained on a 40% calorie restriction regimen (CR; n=10) for the six week study. B16F10 melanoma cells (ATCC® CRL-6475™) were purchased from American Type Culture Collection (Manassas, VA); they were cultured in Dulbecco's Modified Essential Medium (DMEM) supplemented with 10% fetal bovine serum and penicillin/streptomycin (Gibco, Gaithersburg, MD) under standard cell culture conditions. One month into the study, 5 mice from each diet group were injected with 1x106 B16F10 melanoma cells in the periscapular region. Fourteen days later, animals were euthanized and tumors were excised and frozen for RNA isolation. In Vitro: B16F10 melanoma cells were incubated in media with 10% serum from either AL- or CR-fed rats, serum was obtained from overnight fasted, anesthetized 6-month-old male Fisher 344 rats. Cells were grown for 96 hours before being harvested, washed and collected for RNA isolation. The RNA was extracted using the RNeasy Mini Kit from Qiagen using standard protocols and labeled with Biotin using the standard Illumina protocol. Samples were hybed overnight to Illumina's Sentrix MouseRef-8 v1.1 Expression BeadChips. Arrays were washed, stained with Cy-3 and scanned at 0.8 micron resolution in a 500 GX Illumina Bead Array Reader.
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Project description:Effect of PTEN treatment on the subcutaneous tumor formation model of PTEN knockout B16F10 cells in C57BL/6J mice
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Project description:Hyaluronan receptor LYVE-1 is expressed by liver sinusoidal endothelial cells (LSEC), lymphatic endothelial cells and specialized macrophages. Besides binding hyaluronan, LYVE-1 mediates adhesion of leukocytes and cancer cells to endothelial cells. Here, we analyzed the impact of LYVE-1 on physiological liver functions and metastasis. Mice with deficiency of Lyve-1 (Lyve-1 KO) were analyzed using histology, immunofluorescence, RNA sequencing, plasma proteomics and flow cytometry. Liver metastasis was studied by intrasplenic/intravenous injection of melanoma (B16F10luc2, WT31) or colorectal carcinoma (MC38) cell lines. Results: Hepatic architecture, liver size, endothelial differentiation and angiocrine functions were unaltered in Lyve-1 KO mice. Hyaluronan plasma levels were significantly increased in Lyve-1-KO mice; besides, plasma proteomics revealed increased carbonic anhydrase-2 and decreased FXIIIA, potential modulators of metastatis. Furthermore, gene expression analysis of LSEC indicated regulation of immunological pathways. Therefore, liver metastasis of a highly and of a weekly immunogenic tumor, i.e. melanoma and colorectal carcinoma (CRC), was analyzed in Lyve-1 KO mice. Hepatic metastasis of B16F10 luc2 and WT31 melanoma cells, but not MC38 CRC cells, was significantly reduced in Lyve-1 KO mice. While short-term adhesion assays with B16F10 luc2 cells in vivo did not show differences between Lyve-1 KO and wild-type mice, increased numbers of resident hepatic CD4+, CD8+ and regulatory T cells were detected in Lyve-1 KO livers. In addition, iron deposition was detected in F4/80+ liver macrophages known to exert pro-inflammatory effects. Conclusions: LYVE-1 deficiency controlled hepatic metastasis in a tumor cell-specific manner reducing hepatic metastasis of melanoma, but not CRC. Anti-tumorigenic effects are likely due to enhancement of the resident hepatic immune microenvironment.
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