Blog of Signaling Pathways

The platelet-derived growth factor receptor/STAT3 signaling pathway regulates the phenotypic transition of corpus cavernosum smooth muscle in rats

837 views | Nov 09 2017

Yan JF et al. indicated that through activation of the PDGFR/STAT3 signaling pathway, PDGF promoted the synthetic phenotype transition; thus, regulation of this pathway might contribute to ED therapy. [Read the Full Post]

Spleen Tyrosine Kinase Mediates EGFR Signaling to Regulate Keratinocyte Terminal Differentiation

1040 views | Nov 09 2017

Wu NL et al. unraveled the role of Syk in EGFR-mediated signaling and reveals regulatory roles of Syk in keratinocyte differentiation, suggesting the clinical potential of topical or systemic Syk inhibitors in the treatment of skin diseases with aberrant differentiation. [Read the Full Post]

Synergistic effects of selective inhibitors targeting the PI3K/AKT/mTOR pathway or NUP214-ABL1 fusion protein in human Acute Lymphoblastic Leukemia

0 views | Nov 08 2017

Simioni C et al. indicated that co-targeting NUP214-ABL1 fusion gene and PI3K/Akt/mTOR signaling pathway could represent a new and effective pharmacological strategy to improve the outcome in NUP214-ABL1 positive T-ALL. [Read the Full Post]

Molecular mechanism of G1 arrest and cellular senescence induced by LEE011, a novel CDK4/CDK6 inhibitor, in leukemia cells

575 views | Nov 08 2017

Tao YF et al. demonstrated for the first time that LEE011 treatment results in inhibition of cell proliferation and induction of G1 arrest and cellular senescence in leukemia cells. LncRNA microarray analysis showed differentially expressed mRNAs and lncRNAs in LEE011-treated HL-60 cells and we demonstrated that LEE011 induces cellular senescence partially through downregulation of the expression of MYBL2. These results may open new lines of investigation regarding the molecular mechanism of LEE011 induced cellular senescence. [Read the Full Post]

Mutations of the LIM protein AJUBA mediate sensitivity of head and neck squamous cell carcinoma to treatment with cell-cycle inhibitors

692 views | Nov 07 2017

Zhang M et al. identified AJUBA, SMAD4 and RAS mutations as potential candidate biomarkers of response of HNSCC to treatment with these mitotic inhibitors. [Read the Full Post]

Quantitative proteomics of breast tumors: Tissue quality assessment to clinical biomarkers

1483 views | Nov 06 2017

Chen Y, et al. showed that combined with biomarkers for tissue quality and histological content are implemented in a three-tier multiplexed assay platform, which is translated from cell line models into frozen tumor tissues banked from breast cancer patients. [Read the Full Post]

Checkpoint kinase inhibitor AZD7762 strongly sensitises urothelial carcinoma cells to gemcitabine

0 views | Nov 06 2017

Isono M et al. showed that AZD7762 enhanced sensitivity of urothelial carcinoma cells to gemcitabine by inhibiting DNA repair and disturbing checkpoints. Combining gemcitabine with CHK1 inhibition holds promise for urothelial cancer therapy. [Read the Full Post]

JAK-STAT and G-protein-coupled receptor signaling pathways are frequently altered in epitheliotropic intestinal T-cell lymphoma

1678 views | Nov 05 2017

Nairismägi ML et al. showed that inhibitors of both JAK-STAT and MEK-ERK pathways effectively reduced viability of patient-derived primary EITL cells, indicating potential therapeutic strategies for this neoplasm with no effective treatment currently available. [Read the Full Post]

Platelet-derived growth factor BB enhances osteoclast formation and osteoclast precursor cell chemotaxis

1310 views | Nov 05 2017

Li DQ et al. showed that PDGF-BB enhanced RAW264.7 cell migration and gene expression of osteoclastogenic signaling molecules (i.e., nuclear factor of activated T cells 1, dendrocyte-expressed seven transmembrane protein, and B-cell lymphoma 2), and treatment with AG-1295, AG-490, or S3I-201 (a STAT3 inhibitor) reduced this effect. PDGF-BB enhanced osteoclast formation, osteoclast precursor cell chemotaxis, and phosphorylation of STAT3, Akt, and ERK1/2. but AG-1295 and AG-490 reduced this effect. These findings reflect the complexity of PDGF-BB in bone biology. [Read the Full Post]

Regulated intramembrane proteolysis of the AXL receptor kinase generates an intracellular domain that localizes in the nucleus of cancer cells

790 views | Nov 04 2017

Lu Y et al. suggested that AXL can undergo sequential processing mediated by various proteases kept in a homeostatic balance. [Read the Full Post]

Role of protein arginine methyltransferase 5 in inflammation and migration of fibroblast-like synoviocytes in rheumatoid arthritis

570 views | Nov 04 2017

Chen D et al. suggested that targeting PRMT5 to prevent synovial inflammation and destruction might be a promising therapy for RA. [Read the Full Post]

IGF-II-mediated downregulation of peroxisome proliferator-activated receptor-γ coactivator-1α in myoblast cells involves PI3K/Akt/FoxO1 signaling pathway

588 views | Nov 03 2017

Mu X et al. indicated that IGF-II reduces PGC-1α expression in skeletal muscle cells through a mechanism involving PI3K-Akt-FoxO1 but not p38 MAPK or Erk1/2 MAPK pathways. [Read the Full Post]

Hepatocyte growth factor reduces sensitivity to the epidermal growth factor receptor-tyrosine kinase inhibitor, gefitinib, in lung adenocarcinoma cells harboring wild-type EGFR

0 views | Nov 02 2017

Yang H et al. suggested that HGF reduced the gefitinib sensitivity through MET and downstream PI3K and MAPK pathways. [Read the Full Post]

BRCA1-regulated RRM2 expression protects glioblastoma cells from endogenous replication stress and promotes tumorigenicity

799 views | Nov 02 2017

Rasmussen RD et al. proposed that GBM cells are addicted to the RS-protective role of the BRCA1-RRM2 axis, targeting of which may represent a novel paradigm for therapeutic intervention in GBM. [Read the Full Post]

Antitumor effect of FGFR inhibitors on a novel cholangiocarcinoma patient derived xenograft mouse model endogenously expressing an FGFR2-CCDC6 fusion protein

0 views | Nov 01 2017

Wang Y et al. provided a strong rationale for the investigation of FGFR inhibitors, particularly BGJ398, as a therapeutic option for cholangiocarcinoma patients harboring FGFR2 fusions. [Read the Full Post]

Anidulafungin-Induced Suicidal Erythrocyte Death

0 views | Nov 01 2017

Anidulafungin triggers hemolysis and eryptosis with cell shrinkage and phospholipid scrambling of the erythrocyte cell membrane, an effect in part due to Ca2+ entry and activation of p38 kinase. [Read the Full Post]

Inhibition of β-Catenin to Overcome Endocrine Resistance in Tamoxifen-Resistant Breast Cancer Cell Line

0 views | Oct 31 2017

Won HS et al. suggested that beta-catenin plays a role in tamoxifen-resistant breast cancer, and the inhibition of beta-catenin may be a potential target in tamoxifen-resistant breast cancer. [Read the Full Post]

Phosphoinositide 3-Kinase δ Regulates Dectin-2 Signaling and the Generation of Th2 and Th17 Immunity

0 views | Oct 31 2017

Lee MJ, et al. demonstrated that PI3Kδ regulates Dectin-2 signaling and its dendritic cell function. [Read the Full Post]

Coordinate involvement of Nodal-dependent inhibition and Wnt-dependent activation in the maintenance of organizer-specific bmp2b in zebrafish

1065 views | Oct 30 2017

Xue Y et al. suggested that maintenance of organizer-specific bmp2b expression involves opposite and concerted regulation by Nodal and Wnt signaling. [Read the Full Post]

S100B impairs glycolysis via enhanced poly(ADP-ribosyl)ation of glyceraldehyde-3-phosphate dehydrogenase in rodent muscle cells

1164 views | Oct 30 2017

Hosokawa K et al. concluded that S100B as a humoral factor may impair glycolysis in muscle cells independent of insulin action, and the effect may be attributed to the inhibition of GAPDH activity from enhanced poly(ADP-ribosyl)ation of the enzyme. conclude that S100B as a humoral factor may impair glycolysis in muscle cells independent of insulin action, and the effect may be attributed to the inhibition of GAPDH activity from enhanced poly(ADP-ribosyl)ation of the enzyme. [Read the Full Post]