Category

Archives

Blog of Signaling Pathways

X66, a novel N-terminal heat shock protein 90 inhibitor, exerts antitumor effects without induction of heat shock response.

527 views | Mar 16 2018

Zhao Z et al. found that the HSP90 inhibitory action and the potent antitumor activity, with the anti-HSR action, promise X66 a novel HSP90-targeted agent, which merits further research and development. [Read the Full Post]

Epothilone B induces apoptosis and enhances apoptotic effects of ABT-737 on human cancer cells via PI3K/AKT/mTOR pathway

0 views | Mar 16 2018

Li YL et al. indicated that ABT-737 may be a pertinent sensitizer to epothilone B, and the strategy of combining epothilone B with ABT-737 appears to be an attractive option for overcoming the resistance and neurotoxicity of epothilone B. [Read the Full Post]

NF-YA promotes invasion and angiogenesis by upregulating EZH2-STAT3 signaling in human melanoma cells

923 views | Mar 15 2018

Xu Z et al. indicated that overexpression of NF-YA contributes to tumor angiogenesis through EZH2-STAT3 signaling in human melanoma cells, highlighting NF-YA as a potential therapeutic target in human melanoma. [Read the Full Post]

Endothelial STAT3 Activation Increases Vascular Leakage Through Downregulating Tight Junction Proteins: Implications for Diabetic Retinopathy

847 views | Mar 15 2018

Yun JH et al. suggested the potential importance of IL-6/STAT3 signaling in regulating endothelial permeability and provide a therapeutic target to prevent the pathology of diabetic retinopathy. [Read the Full Post]

cAMP signaling increases histone deacetylase 8 expression via the Epac2-Rap1A-Akt pathway in H1299 lung cancer cells

554 views | Mar 14 2018

Park JY et al. indicated the Epac-Rap1-Akt pathway mediates cAMP signaling-induced inhibition of JNK-dependent HDAC8 degradation, and the resulting HDAC8 increase augments cisplatin-induced apoptosis by repressing TIPRL expression in H1299 lung cancer cells. [Read the Full Post]

Aberrant activation of hedgehog signaling promotes cell proliferation via the transcriptional activation of forkhead Box M1 in colorectal cancer cells

667 views | Mar 13 2018

Wang D et al. indicated the dysregulation of the Hh-Gli1-FoxM1 axis is essential for the proliferation and growth of human CRC cells and offers a potent target for therapeutic intervention in CRC. [Read the Full Post]

A Novel Antifibrotic Mechanism of Nintedanib and Pirfenidone. Inhibition of Collagen Fibril Assembly

773 views | Mar 12 2018

Knüppel L et al. indicated both drugs act on important regulatory levels in collagen synthesis and processing. Nintedanib was more effective in down-regulating profibrotic gene expression and collagen secretion. Importantly, both drugs inhibited collagen I fibril formation and caused a reduction in and an altered appearance of collagen fibril bundles, representing a completely novel mechanism of action for both drugs. [Read the Full Post]

Nek2A/SuFu feedback loop regulates Gli-mediated Hedgehog signaling pathway

630 views | Mar 12 2018

Zhou F et al. uncovered one of the mechanisms by which Nek2A acts as a modulator of the Hh signaling pathway in the context of a novel negative-feedback loop, which may offer new insights into Gli-mediated Hh signaling regulation in development and human diseases. [Read the Full Post]

Osteoclast-Primed Foxp3+ CD8 T Cells Induce T-bet, Eomesodermin, and IFN-γ To Regulate Bone Resorption.

0 views | Mar 11 2018

Shashkova EV et al. demonstrated a novel link between NF-κB signaling and induction of IFN-γ in TcREG and establish an important role for IFN-γ in TcREG-mediated protection from bone loss. [Read the Full Post]

Panobinostat induces apoptosis via production of reactive oxygen species and synergizes with topoisomerase inhibitors in cervical cancer cells

0 views | Mar 10 2018

Wasim L et al. suggest a combination therapy using inhibitors of histone deacetylase and topoisomerase together could hold the promise for an effective targeted therapeutic strategy. [Read the Full Post]

Valproic acid potentiates the anticancer activity of capecitabine in vitro and in vivo in breast cancer models via induction of thymidine phosphorylase expression

990 views | Mar 10 2018

Terranova-Barberio M et al. suggested that the combination of HDACi (e.g., VPA) and capecitabine is an innovative antitumor strategy that warrants further clinical evaluation for the treatment of metastatic breast cancer. [Read the Full Post]

IgG subclasses determine pathways of anaphylaxis in mice

0 views | Mar 09 2018

Beutier H et al. proposed that the differential expression of inhibitory FcγRIIB on myeloid cells and its differential binding of IgG subclasses controls the contributions of mast cells, basophils, neutrophils, and macrophages to IgG subclass-dependent anaphylaxis. [Read the Full Post]

Activation of the PI3K/mTOR Pathway following PARP Inhibition in Small Cell Lung Cancer

739 views | Mar 09 2018

Cardnell RJ et al. suggested that combining PARP and PI3K inhibitors enhances the effect of either agent alone in preclinical models of SCLC, warranting further investigation of such combinations in SCLC patients. [Read the Full Post]

In Vitro Antibacterial Activity of Rhodanine Derivatives against Pathogenic Clinical Isolates

672 views | Mar 08 2018

AbdelKhalek A et al. suggested that certain rhodanine compounds may have potential use for the treatment of several multidrug-resistant Gram-positive bacterial infections. [Read the Full Post]

Acquired resistance to combination treatment through loss of synergy with MEK and PI3K inhibitors in colorectal cancer

519 views | Mar 08 2018

Bhattacharya B et al. showed that AQR to combination treatment may develop through alternative mechanisms to those of single agent treatment, including a change in drug interaction. [Read the Full Post]

Late-stage inhibition of autophagy enhances calreticulin surface exposure

531 views | Mar 07 2018

Li DD et al. highlight the potential of the combined use of ER stress inducers and autophagy late-stage inhibitors to reestablish and strengthen both the CRT exposure and immunogenicity of chemotherapeutic agents induced death cells. [Read the Full Post]

HSPA5 Regulates Ferroptotic Cell Death in Cancer Cells

0 views | Mar 07 2018

Zhu S et al. identified a novel role of HSPA5 in ferroptosis and suggest a potential therapeutic strategy for overcoming gemcitabine resistance. [Read the Full Post]

The CDK9 Inhibitor Dinaciclib Exerts Potent Apoptotic and Antitumor Effects in Preclinical Models of MLL-Rearranged Acute Myeloid Leukemia

406 views | Mar 06 2018

Baker A et al. highlight a new therapeutic approach to potentially overcome the resistance of MLL-rearranged AML to conventional chemotherapies and prompt further clinical evaluation of CDK inhibitors in AML patients harboring MLL fusion proteins. [Read the Full Post]

Inhibition of Skp2 sensitizes lung cancer cells to paclitaxel

485 views | Mar 06 2018

Huang T et al. demonstrated that SKP2 positively regulates the gene expression of MAD2 through p27-CDKs-E2F1 signaling pathway and that inhibition of Skp2 sensitizes A549 and NCI-H1299 cells to paclitaxel, suggesting that small molecule inhibitors of Skp2 are potential agents for the treatment of lung cancer with upregulation of Skp2. [Read the Full Post]

Insulin-induced cytokine production in macrophages causes insulin resistance in hepatocytes

428 views | Mar 05 2018

Manowsky J et al. indicated that hyperinsulinemia per se might contribute to the low-grade inflammation prevailing in overweight and obese patients and thereby promote the development of insulin resistance particularly in the liver, because the insulin concentration in the portal circulation is much higher than in all other tissues. [Read the Full Post]