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Total 176 results found since Jan 2013.

MicroRNA-224 modulates chemosensitivity of breast cancer cells to docetaxel by apoptosis inhibitor 5
CONCLUSION: An inverse association between miR-224 and API-5 in breast cancer cells was revealed. Dysregulation of miR-224 plays a vital role in the acquired DOC resistance of breast cancer and at least partially via targeting API-5.PMID:34076992
Source: Journal of B.U.ON. - June 2, 2021 Category: Cancer & Oncology Authors: Junying Zhang Ya Lu Ye Zhang Yan Chen Wenbo Zhu Hangju Zhu Jianzhong Wu Jinhai Tang Source Type: research

LncRNA LINC00184 promotes docetaxel resistance and immune escape via miR-105-5p/PD-L1 axis in prostate cancer
CONCLUSIONS: LINC00184 promoted docetaxel resistance and immune escape in prostate cancer cells by adsorption of miR-105-5p, resulted in upregulation of the expression of PD-L1. LINC00184 could possibly be considered as a potential target for treatment in prostate cancer patients with docetaxel-resistance.PMID:34896914 | DOI:10.1016/j.imbio.2021.152163
Source: Immunobiology - December 13, 2021 Category: Allergy & Immunology Authors: Wei Zhang Jun Xin Jinjin Lai Wenbin Zhang Source Type: research

The CCL2-CCR2 Axis Contributes to Migration of Cabazitaxel-resistant Prostate Cancer Cells
CONCLUSION: The CCL2-CCR2 axis is a key contributor to resistance to the antimigration effect of cabazitaxel in prostate cancer cells. CCL2-CCR2 axis inhibition may be a potential therapeutic target against chemoresistant CRPC in combination with cabazitaxel.PMID:37247914 | DOI:10.21873/anticanres.16423
Source: Cell Research - May 29, 2023 Category: Cytology Authors: Ariunbold Natsagdorj Kouji Izumi Kaoru Hiratsuka Renato Naito Suguru Kadomoto Hiroaki Iwamoto Hiroshi Yaegashi Kazuyoshi Shigehara Hiroki Nakata Atsushi Mizokami Source Type: research

Androgen receptor knockdown enhances prostate cancer chemosensitivity by down ‐regulating FEN1 through the ERK/ELK1 signalling pathway
ConclusionCollectively, our studies demonstrate that AR knockdown improves the DTX sensitivity of prostate cancer cells by downregulating FEN1 through the ERK/ELK1 signalling pathway.
Source: Cancer Medicine - June 16, 2023 Category: Cancer & Oncology Authors: Weijie Xie, Shulin Li, Huan Guo, Jiawei Zhang, Menjiang Tu, Rui Wang, Bingling Lin, Yuqi Wu, Xiangwei Wang Tags: RESEARCH ARTICLE Source Type: research

TR4 Promotes Chemoresistance in PCa Stem Cells Gene Regulation
Prostate cancer (PCa) stem/progenitor cells are known to have higher chemoresistance than non-stem/progenitor cells, but the underlying molecular mechanism remains unclear. We found the expression of testicular nuclear receptor 4 (TR4) is significantly higher in PCa CD133+ stem/progenitor cells compared with CD133− non-stem/progenitor cells. Knockdown of TR4 levels in the established PCa stem/progenitor cells and the CD133+ population of the C4-2 PCa cell line with lentiviral TR4 siRNA led to increased drug sensitivity to the two commonly used chemotherapeutic drugs, docetaxel and etoposide, judging from significantly re...
Source: Journal of Biological Chemistry - June 7, 2013 Category: Chemistry Authors: Yang, D.-R., Ding, X.-F., Luo, J., Shan, Y.-X., Wang, R., Lin, S.-J., Li, G., Huang, C.-K., Zhu, J., Chen, Y., Lee, S. O., Chang, C. Tags: Cell Biology Source Type: research

EGFR mediates docetaxel resistance in human castration-resistant prostate cancer through the Akt-dependent expression of ABCB1 (MDR1).
In this study, we explored the mechanism of EGFR-mediated docetaxel resistance in PC. A series of stable docetaxel-resistant PC/DX sublines were established at our laboratory. The docetaxel IC50s of PC3 and PC/DX25 cells were 0.01 and 1.33 μM, respectively. Cellular resistance to docetaxel was significantly associated with increased EGFR and EGFR activation in PC/DX25. There was a dose-dependent increase in EGFR expression associated with the magnitude of docetaxel resistance. Expression of EGFR in PC/DX25 was higher than that in PC3, RWPE-1 and LNCaP cells. Similar results were also found in human PC tissues by immunohi...
Source: Archives of Toxicology - June 3, 2014 Category: Toxicology Authors: Hour TC, Chung SD, Kang WY, Lin YC, Chuang SJ, Huang AM, Wu WJ, Huang SP, Huang CY, Pu YS Tags: Arch Toxicol Source Type: research

Abstract 2623: PI3K/mTOR dual inhibitor PF-5212384 inhibits aberrant NF-kB activation and exhibits activity in combination with MEK inhibitor PD-325901 and docetaxel in human head and neck squamous cell carcinoma
In this study, we determined the effects of the novel PI3K-mTOR inhibitor PF-5212384 (PF-384) on molecular targets and HNSCC growth in preclinical models. PF-384 IC50s of 0.75nM-133nM were found in 12 HNSCC lines by XTT cell density assays and treatment resulted in increased sub-G0 cell death and G0/G1 phase blockade by DNA flow cytometry. PF-384 strongly inhibited direct targets of PI3K-mTOR, aberrant NF-kB transactivation and induced cytokines, but only partially inhibited MEK pathway targets. Transient siRNA knockdown of PIK3CA inhibited NF-kB activity, supporting PI3K-mTOR as an important driver and target for inhibiti...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Mohan, S., Broek, R. J. V., Saleh, A. D., Pierce, M. L., Coupar, J. F., Eytan, D. F., Chen, Z., Waes, C. V. Tags: Experimental and Molecular Therapeutics Source Type: research

Abstract 3310: N-cadherin promotes docetaxel resistance through upregulated TLR4 signaling in castration resistant prostate cancers
In this study, our objective is to determine the role of N-cadherin expression in chemoresistance and whether treatment with monoclonal antibodies restores chemosensitivity. Methods: Tissue microarrays of CRPC and high grade prostate cancer clinical samples were stained for TLR4. N-cadherin positive and negative cell lines were evaluated for sensitivity against docetaxel. N-cadherin and TLR4 were ectopically expressed in N-cadherin negative prostate cancer cells (LNCaP, VCaP). Docetaxel resistant cell lines (LNCaP-DocR and VCaP-DocR) were established through prolonged exposure to 10-20uM Docetaxel. For in vitro experiments...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Shimomura, T., Kono, E., Tran, C. P., Yamashiro, J., Lin, S., Lee, S. H.-K., Wainberg, Z. A., Reiter, R. E. Tags: Molecular and Cellular Biology Source Type: research

Abstract 5033: Down-regulation of PD-1 ligands by chemotherapeutic agents via inhibition of STAT3 activity enhances T cell-stimulating ability of dendritic cell
Conclusions: The findings obtained from the current study suggested that 5-FU and DTX may enhance the T cell-stimulating ability of DCs via down-regulation of PD-L1 and PD-L2 mediated by STAT3 inhibition, and that the combination therapy of DC-based cancer vaccine with these anti-cancer drugs may elicit better anti-tumor immune response than only vaccination. Citation Format: Masato Okamoto, Tomoyuki Tano, Hiroyuki Goda, Yohei Fujita, Koh-ichi Nakashiro, Hiroyuki Hamakawa. Down-regulation of PD-1 ligands by chemotherapeutic agents via inhibition of STAT3 activity enhances T cell-stimulating ability of dendritic cell. [abst...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Okamoto, M., Tano, T., Goda, H., Fujita, Y., Nakashiro, K.-i., Hamakawa, H. Tags: Immunology Source Type: research

RASSF10 suppresses colorectal cancer growth by activating P53 signaling and sensitizes colorectal cancer cell to docetaxel.
In conclusion, our study demonstrates RASSF10 is frequently methylated in human colorectal cancer leading to loss of expression. RASSF10 normally suppresses human colorectal cancer growth by activating P53 signaling in colorectal cancer, and restored expression sensitizes colorectal cancer to docetaxel. PMID: 25638156 [PubMed - as supplied by publisher]
Source: Oncotarget - February 6, 2015 Category: Cancer & Oncology Tags: Oncotarget Source Type: research