pancreatic neoplasms/tyrosine

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Peptide tyrosine-tyrosine combined with its receptors exhibits an anti-cancer potential in pancreatic cancer MiaPaCa-2 cell.

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BACKGROUND Pancreatic cancer is a common malignant tumor of the digestive system. It is the fourth major cause of tumor-related death and its morbidity is increasing, and hence it is imperative to develop effective forms of therapy for pancreatic cancer. Peptide tyrosine-tyrosine (PYY) is an

Sustained expression of the RON receptor tyrosine kinase by pancreatic cancer stem cells as a potential targeting moiety for antibody-directed chemotherapeutics.

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Cancer stem cells (CSCs) contribute to pancreatic cancer tumorigenesis through tumor initiation, drug resistance, and metastasis. Currently, therapeutics targeting pancreatic CSCs are under intensive investigation. This study tested a novel strategy that utilizes the RON receptor as a drug delivery

Somatostatin analogues inhibit growth of pancreatic cancer by stimulating tyrosine phosphatase.

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Several analogues of somatostatin were examined in the Mia PaCa-2 human pancreatic cancer cell line for their ability to promote tyrosine phosphatase activity affecting the receptors for the epidermal growth factor. The inhibition of growth of the Mia PaCa-2 cells in culture was also evaluated to

Phorbol ester reduces phosphorylation of epidermal growth factor receptor in pancreatic cancer cells by activation of a tyrosine phosphatase.

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In this study we report that phorbol 12-myristate 13-acetate (PMA) transiently reduced the level of EGF receptor tyrosine phosphorylation in three pancreatic cancer cell lines (HPAC, SW1990, and UCVA-1) in response to EGF. The effect was maximal at 40-90 min. Pretreatment with the protein kinase C

Metabolic glycoengineering sensitizes drug-resistant pancreatic cancer cells to tyrosine kinase inhibitors erlotinib and gefitinib.

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Metastatic human pancreatic cancer cells (the SW1990 line) that are resistant to the EGFR-targeting tyrosine kinase inhibitor drugs (TKI) erlotinib and gefitinib were treated with 1,3,4-O-Bu3ManNAc, a 'metabolic glycoengineering' drug candidate that increased sialylation by ∼2-fold. Consistent with

Hematopoietic progenitor kinase 1 down-regulates the oncogenic receptor tyrosine kinase AXL in pancreatic cancer.

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The oncogenic receptor tyrosine kinase AXL is overexpressed in cancer and plays an important role in carcinomas of multiple organs. However, the mechanisms of AXL overexpression in cancer remain unclear. In this study, using HEK293T, Panc-1, and Panc-28 cells, and samples of human pancreatic

The inhibitory effect of an EGF receptor-specific tyrosine kinase inhibitor on pancreatic cancer cell lines was more potent than inhibitory antibodies against the receptors for EGF and IGF I.

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CONCLUSIONS Epidermal growth factor (EGF) increased the cell number of the two pancreatic cancer cell lines, MiaPaCa-2 and LN-36, in vitro. A blockade of the EGF-R tyrosine kinase with tyrphostin was more efficient in reducing the cell number than inhibiting receptor antibodies. IGF-1 increased the

Calix[6]arene bypasses human pancreatic cancer aggressiveness: downregulation of receptor tyrosine kinases and induction of cell death by reticulum stress and autophagy.

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Pancreatic cancer ranks fourth among cancer-related causes of death in North America. Minimal progress has been made in the diagnosis and treatment of patients with late-stage tumors. Moreover, pancreatic cancer aggressiveness is closely related to high levels of pro-survival mediators, which can

The RON receptor tyrosine kinase in pancreatic cancer pathogenesis and its potential implications for future targeted therapies.

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Pancreatic cancer remains a devastating disease with a mortality rate that has not changed substantially in decades. Novel therapies are therefore desperately needed. The RON receptor tyrosine kinase has been identified as an important mediator of KRAS oncogene addiction and is overexpressed in the

Calix[6]arene diminishes receptor tyrosine kinase lifespan in pancreatic cancer cells and inhibits their migration and invasion efficiency.

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Pancreatic cancer is a challenging malignancy, mainly due to aggressive regional involvement, early systemic dissemination, high recurrence rate, and subsequent low patient survival. Scientific advances have contributed in particular by identification of molecular targets as well as the definition

Ack1 tyrosine kinase activation correlates with pancreatic cancer progression.

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Pancreatic cancer is a significant cause of cancer mortality worldwide as the disease has advanced significantly in patients before symptoms are evident. The signal transduction pathways that promote this rapid progression are not well understood. Ack1 or TNK2, an ubiquitously expressed oncogenic

The efficacy of tyrosine kinase inhibitors on human pancreatic cancer cell lines.

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We attempted to determine potential therapeutic targets in pancreatic cancer by performing microarray analysis and targeted chemotherapy on three human pancreatic cancer cell lines. We used a microarray to screen 847 genes involved in cytokine signaling, signal transduction, and transcription.

Clinical trials of VEGF receptor tyrosine kinase inhibitors in pancreatic cancer.

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Pancreatic cancer is the fourth leading cause of cancer-related deaths in Western countries and is among the deadliest diseases in humans. At present, gemcitabine is the standard chemotherapy for advanced pancreatic cancer, although (despite its use) prognosis continues to be dismal with a median

Inhibitory and stimulatory effects of somatostatin on two human pancreatic cancer cell lines: a primary role for tyrosine phosphatase SHP-1.

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Somatostatin (SS-14) and its structural analogue SMS 201-995 (SMS) are recognized as physiological inhibitors of multiple organs and tissue functions through specific membrane receptors (sst1-sst5). The effects of SS-14 and SMS in the growth control of the pancreatic cancer cell lines MIA PaCa-2 and

Inhibition of pancreatic cancer cell growth in vitro by the tyrphostin group of tyrosine kinase inhibitors.

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Tyrphostins are a group of low molecular weight synthetic inhibitors of protein tyrosine kinases (PTK). The intracellular domains of the receptors for epidermal growth factor (EGF), transforming growth factor-alpha (TGF-alpha), insulin-like growth factor 1 (IGF-1) possess PTK activity. Since EGF,

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