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Phase 1 Study Combining Alisertib with Nab-Paclitaxel in Patients with Advanced Solid Malignancies (NCT01677559)

ABSTRACT: Phase 1 Study Combining Alisertib with Nab-Paclitaxel in Patients with Advanced Solid Malignancies (NCT01677559)

PROVIDER: PRJNA731485 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14605900.fastq.gz	Fastqsanger.gz
	SRR14605901.fastq.gz	Fastqsanger.gz
	SRR14605902.fastq.gz	Fastqsanger.gz
	SRR14605897.fastq.gz	Fastqsanger.gz
	SRR14605898.fastq.gz	Fastqsanger.gz

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c-Myc drives nab-paclitaxel resistance in pancreatic cancer

Project description:Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive disease with limited and very often, ineffective medical and surgical therapeutic options. The treatment of patients with advanced unresectable PDAC is restricted to systemic chemotherapy, a therapeutic intervention to which most eventually develop resistance. Recently, nab-paclitaxel has been added to the arsenal of first line therapies, and the combination of gemcitabine and nab-paclitaxel has modestly prolonged median overall survival. However, patients almost invariably succumb to the disease, and little is known about the mechanisms underlying nab-paclitaxel (n-PTX) resistance. Using the conditionally reprogrammed (CR) cell approach, we established and verified continuously growing cell cultures from treatment-naive PDAC patients. To study the mechanisms of primary drug resistance, nab-paclitaxel-resistant (n-PTX-R) cells were generated from primary cultures and drug resistance was verified in vivo, both in zebrafish and in athymic nude mouse xenograft models. Molecular analyses identified the sustained induction of c-MYC in the nab-paclitaxel-resistant cells. Depletion of c-Myc restored nab-paclitaxel sensitivity, as did treatment with either the MEK inhibitor, trametinib, or a small molecule activator of protein phosphatase 2a (SMAP). Implications: The strategies we have devised, including the patient-derived primary cells and the unique drug resistant isogenic cells, are rapid and easily applied in vitro and in vivo platforms to better understand the mechanisms of drug resistance and for defining effective therapeutic options on a patient by patient basis

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Phase 1 Study Combining Alisertib with Nab-Paclitaxel in Patients with Advanced Solid Malignancies (NCT01677559)

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Project description:Phase 1 Study Combining Alisertib with Nab-Paclitaxel in Patients with Advanced Solid Malignancies

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A whole-genome CRISPR screen identifies the spindle accessory checkpoint as a locus of nab-paclitaxel resistance in pancreatic cancer cells.

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