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  1. 3321
    “…Migration and invasion were also inhibited by MMP-9, uPAR and cathepsin B shRNA treatments as assessed by spheroid migration, wound healing, and Matrigel invasion assays. …”
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    MMP-9, uPAR and Cathepsin B Silencing Downregulate Integrins in Human Glioma Xenograft Cells In Vitro and In Vivo in Nude Mice
  2. 3322
    “…METHODOLOGY/PRINCIPAL FINDINGS: Human glioma cell lines and glioma spheroid orthotopic implants were used in rodents. …”
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    Cellular Host Responses to Gliomas
  3. 3323
    “…NSCs co-cultured with MECs also showed increased invasiveness and clonogenicity and formed more free-floating spheroids and highly branched ductal-like structures in Matrigel, all typical for CSCs. …”
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    Arsenic-Transformed Malignant Prostate Epithelia Can Convert Noncontiguous Normal Stem Cells into an Oncogenic Phenotype
  4. 3324
    “…Methods: We chronically exposed HPDE cells to low level cadmium (1 μM) for ≤ 29 weeks. Nonadherent spheroid formation was used to indicate CSC-like cell production, and we assessed tumor cell characteristics in such spheres. …”
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    Chronic Cadmium Exposure in Vitro Causes Acquisition of Multiple Tumor Cell Characteristics in Human Pancreatic Epithelial Cells
  5. 3325
    “…RESULTS: Our data show the presence of a phenomenon of EMT with gradual cellular transition from an epithelioid to mesenchymal-like spheroid morphology during induction of drug resistance. …”
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    Quercetin Suppresses Drug-Resistant Spheres via the p38 MAPK–Hsp27 Apoptotic Pathway in Oral Cancer Cells
  6. 3326
    “…Migration and invasiveness of the engineered cells were assessed using wound healing assay, Transwell migration assay, Transwell matrix penetration assay and 3-D spheroid invasion assay. MMP-9 expression and activity were measured using real-time PCR, ELISA and the gelatin zymography methods. …”
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    Bmi-1 promotes the aggressiveness of glioma via activating the NF-kappaB/MMP-9 signaling pathway
  7. 3327
    “…Notably, the isolated CD44+ NPC cells were resistant to chemotherapeutic agents and with higher spheroid formation efficiency, showing CSC properties. …”
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    CD44+ Cancer Stem-Like Cells in EBV-Associated Nasopharyngeal Carcinoma
  8. 3328
    “…The ability to form compact spheroids or aggregates was observed in six of nine cell lines. …”
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    Derivation and characterization of matched cell lines from primary and recurrent serous ovarian cancer
  9. 3329
    “…Both CD44(high)CD90(+) and CD44(high)CD90(−) cells in the PLCCL derived from SCC formed spheroids, whereas the CD44(low/−) cells were lacking this potential. …”
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    Identification and Characterization of Cells with Cancer Stem Cell Properties in Human Primary Lung Cancer Cell Lines
  10. 3330
    “…K1735/16 cells grown in soft agar or in suspension non-adherent conditions failed to form colonies or spheroids, whereas the other cell lines showed prominent colonogenicity and spheroid formation capacity. …”
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    Association between Tumorigenic Potential and the Fate of Cancer Cells in a Syngeneic Melanoma Model
  11. 3331
    “…CD133+/EpCAM+ CSCs were enriched under stem cell culture conditions and formed 3-dimensional tumor spheroids. Tumor spheroid cells exhibited CSC properties, including the capability for differentiation and self-renewal, higher tumorigenic potential and chemo-resistance. …”
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    Antitumor Efficacy of the Dual PI3K/mTOR Inhibitor PF-04691502 in a Human Xenograft Tumor Model Derived from Colorectal Cancer Stem Cells Harboring a PIK3CA Mutation
  12. 3332
    “…CX3CR1 expression in vitro was studied by a spheroid model, and in vivo by syngenic mouse graft of tumour cells. …”
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    Early expression of the fractalkine receptor CX3CR1 in pancreatic carcinogenesis
  13. 3333
    “…Lastly, the sonosensitizing system was also investigated in an in vitro three-dimensional model, and the sonodynamic treatment significantly decreased the neuroblastoma spheroid growth. CONCLUSION: The sonosensitizing properties of TPPS were significantly enhanced once loaded onto NPs, thus enhancing the sonodynamic treatment’s efficacy in an in vitro neuroblastoma model.…”
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    Polymeric nanoparticles enhance the sonodynamic activity of meso-tetrakis (4-sulfonatophenyl) porphyrin in an in vitro neuroblastoma model
  14. 3334
    “…Concomitantly, several cancer stem cell (CSC)-like traits appeared in these cells, which exhibit enhanced spheroid-forming capacity, express putative hepatic CSC markers and display superior resistance to chemotherapeutic drugs in vitro. …”
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    Downregulation of miR-200a Induces EMT Phenotypes and CSC-like Signatures through Targeting the β-catenin Pathway in Hepatic Oval Cells
  15. 3335
    “…Cells of the non-ADH population that grew as spheroids expressed Nestin, β-III tubulin, NF-M and PLP-1 transcripts. …”
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    Human dental pulp stem cells cultured in serum-free supplemented medium
  16. 3336
    “…To investigate this important aspect of PHD-inhibition, we used a spheroid-on-matrix cell culture model. RESULTS: Microvascular endothelial cells (glEND.2) were organized into spheroids. …”
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    HIF-1α activation results in actin cytoskeleton reorganization and modulation of Rac-1 signaling in endothelial cells
  17. 3337
    “…Exposure of SsnB inhibited the compact spheroid formation and reduced the tumorigenicity of SH-SY5Y cells and SK-N-BE(2) cells in in vitro 3-D cell culture assays (anchorage-independent colony formation assay and hanging drop assay). …”
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    Sparstolonin B, a Novel Plant Derived Compound, Arrests Cell Cycle and Induces Apoptosis in N-Myc Amplified and N-Myc Nonamplified Neuroblastoma Cells
  18. 3338
    “…DUSP3 downregulation, using RNA interference, in human EC reduced significantly in vitro tube formation on Matrigel and spheroid angiogenic sprouting. However, this defect was not associated with an altered phosphorylation of the documented in vitro DUSP3 substrates, ERK1/2, JNK1/2 and EGFR but was associated with an increased PKC phosphorylation. …”
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    DUSP3/VHR is a pro-angiogenic atypical dual-specificity phosphatase
  19. 3339
    “…Hypoxia led to induction of colony and spheroid formation, aldehyde dehydrogenase 1 (ALDH1) and NF-κB activity, migratory potential and a switch in morphology to a fibroblastoid phenotype, as well as stem cell- and epithelial–mesenchymal transition-associated protein expression. …”
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    Triptolide reverses hypoxia-induced epithelial–mesenchymal transition and stem-like features in pancreatic cancer by NF-κB downregulation
  20. 3340
    “…Overexpression of mir-125a-5p in young endothelial cells (YECs) using pre-mir-125a-5p caused the downregulation of RTEF-1, endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF) and resulted in impaired angiogenesis, as evidenced by spheroid sprouting and tube formation assays in vitro. …”
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    miR-125a-5p impairs endothelial cell angiogenesis in aging mice via RTEF-1 downregulation
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