Blog of Signaling Pathways

Delayed Administration of WP1066, an STAT3 Inhibitor, Ameliorates Radiation-Induced Lung Injury in Mice

2596 views | Jan 28 2017

The activation of STAT3 pathway might play an important part in the pathogenesis of radiation-induced lung injury. The protective effects of delayed treatment of WP1066 suggested STAT3 signaling could be a therapeutic target for radiation pneumonitis. [Read the Full Post]

PTEN activation through K163 acetylation by inhibiting HDAC6 contributes to tumour inhibition

2202 views | Jan 27 2017

Meng Z et al. found that non-selective HDAC or HDAC6-specific inhibitors may be more clinically suitable to treat tumours without PTEN mutations or deletions. [Read the Full Post]

GSK-3β inhibitor TWS119 attenuates rtPA-induced hemorrhagic transformation and activates the Wnt/β-catenin signaling pathway after acute ischemic stroke in rats

1366 views | Jan 27 2017

Wang W et al. suggested that TWS119 reduces rtPA-induced HT and attenuates blood-brain barrier disruption, possibly through activation of the Wnt/β-catenin signaling pathway. This study provides a potential therapeutic strategy to prevent tPA-induced HT after acute ischemic stroke. [Read the Full Post]

Nitric oxide plays a dual role in the oxidative injury of cultured rat microglia but not astroglia

0 views | Jan 26 2017

Wang JY et al. suggested that NO exhibits a concentration-dependent dual action of weakening or enhancing oxidative injury in mixed glia, particularly microglia. [Read the Full Post]

Wnt/β-catenin-signaling and the formation of Müller glia-derived progenitors in the chick retina

0 views | Jan 26 2017

Gallina D et al. indicated that Wnt-signaling is part of a network initiated by FGF2/MAPK or retinal damage, and activation of canonical Wnt-signaling is required for the formation of proliferating MGPCs. [Read the Full Post]

Overexpression of GAB2 in ovarian cancer cells promotes tumor growth and angiogenesis by upregulating chemokine expression

999 views | Jan 25 2017

Duckworth C, et al.'s findings suggest that overexpression of GAB2 in ovarian cancer cells promotes tumor growth and angiogenesis by upregulating expression of CXCL1, CXCL2 and CXCL8 that is IKKβ-dependent. Co-targeting IKKβ and PI3K pathways downstream of GAB2 might be a promising therapeutic strategy for ovarian cancer that overexpresses GAB2. [Read the Full Post]

CD4+ T cell–dependent and –independent cytokine-chemokine network changes in the immune responses of HIV-infected individuals

2642 views | Jan 24 2017

Arnold KB, et al. identified a critical deficiency in NK cell responses of HIV-infected individuals, independent of CD4(+) T cell depletion, which directs secreted profiles. Our findings illustrate a broad approach for identifying key disease-associated nodes in a multicellular, multivariate signaling network. [Read the Full Post]

Tivantinib induces G2/M arrest and apoptosis by disrupting tubulin polymerization in hepatocellular carcinoma

1139 views | Jan 24 2017

Xiang Q, et al.'s conclusion shows that the potent anti-tumor activity of tivantinib in HCC was achieved by targeting microtubule. Tivantinib treatment for patients with HCC should not be selected based on MET status. [Read the Full Post]

Treatment Efficacy and Resistance Mechanisms Using the Second-Generation ALK Inhibitor AP26113 in Human NPM-ALK–Positive Anaplastic Large Cell Lymphoma

2549 views | Jan 23 2017

Ceccon M, et al.'s knowledge of the possible appearance of new clinically relevant mechanisms of drug resistance is a useful tool for the management of new TKI-resistant cases. [Read the Full Post]

Pioglitazone Suppresses CXCR7 Expression To Inhibit Human Macrophage Chemotaxis through Peroxisome Proliferator-Activated Receptor γ

1150 views | Jan 23 2017

Zhao D, et al.'s data demonstrate that pioglitazone suppresses CXCR7 expression to inhibit human macrophage chemotaxis through PPARγ. [Read the Full Post]

Heat shock protein 90 inhibitors induce functional inhibition of human natural killer cells in a dose-dependent manner

1635 views | Jan 22 2017

Huyan T, et al.'s findings suggest that more attention should be given to the effect of Hsp90 inhibitors on NK cell function during clinical trials and also represent a potential immunosuppressant strategy. [Read the Full Post]

Nicotine-Mediated Ca2+ -Influx Induces IL-8 Secretion in Oral Squamous Cell Carcinoma Cell

2356 views | Jan 22 2017

The results fromTsunoda K, et al.'s study indicate that the binding of nicotine to nAChR induces Ca(2+) influx, which results in the activation and phosphorylation of CaMK II and NF-κB p65, respectively. Nicotine-mediated IL-8 induction should be a trigger for the initiation of various diseases. [Read the Full Post]

Assessment of the chemotherapeutic potential of a new camptothecin derivative, ZBH-1205

0 views | Jan 21 2017

Wu D et al. found that ZBH-1205 is a promising chemotherapeutic agent to be further assessed in large-scale clinical trials. [Read the Full Post]

Antiviral activity of micafungin against enterovirus 71

0 views | Jan 21 2017

The research of Kim C et al. revealed a new indication of micafungin as an effective inhibitor of EV71, which is the first case reporting antiviral activity of micafungin, an antifungal drug. [Read the Full Post]

Vorinostat Enhances Cytotoxicity of SN-38 and Temozolomide in Ewing Sarcoma Cells and Activates STAT3/AKT/MAPK Pathways

0 views | Jan 21 2017

In Sampson VB, et al.'s summary, potent antiproliferative and proapoptotic activity were demonstrated for ST induced DNA damage before or simultaneous with HDAC inhibition and cell death was mediated through the p53 pathway. These observations may aid in designing new protocols for treating pediatric patients with high-risk EWS. [Read the Full Post]

Malassezia yeasts activate the NLRP3 inflammasome in antigen-presenting cells via Syk-kinase signalling

1043 views | Jan 20 2017

Kistowska M, et al.'s results identify Malassezia spp. as potential strong inducers of pro-inflammatory responses when taken up by antigen-presenting cells and identify C-type lectin receptors and the NLRP3 inflammasome as crucial actors in this process. [Read the Full Post]

Loss of Siglec-14 reduces the risk of chronic obstructive pulmonary disease exacerbation

1193 views | Jan 19 2017

Angata T, et al. found that NTHi interacts with Siglec-14 to enhance proinflammatory cytokine production in a tissue culture model. Inhibitors of the Syk tyrosine kinase suppress this response. Loss of Siglec-14, due to SIGLEC14-null allele homozygosity, is associated with a reduced risk of COPD exacerbation in a Japanese patient population. Taken together, Siglec-14 and its downstream signaling pathway facilitate the "infection-inflammation-exacerbation" axis of COPD disease progression, and may represent promising targets for therapeutic intervention. [Read the Full Post]

Syk is involved in NLRP3 inflammasome-mediated caspase-1 activation through adaptor ASC phosphorylation and enhanced oligomerization

1068 views | Jan 19 2017

Lin YC, et al.'s results reveal a new molecular pathway through which Syk promotes NLRP3 inflammasome formation, resulting from the phosphorylation of ASC. Thus, the control of Syk activity might be effective to modulate NLRP3 inflammasome activation and treat NLRP3-related immune diseases. [Read the Full Post]

In vitro antifungal synergy between amphiphilic aminoglycoside K20 and azoles against Candida species and Cryptococcus neoformans

1156 views | Jan 18 2017

Shrestha SK et al. suggested that combinations of K20 and azoles offer a possible strategy for developing therapies against candidiasis. [Read the Full Post]

Tyrosine phosphorylation of 3BP2 is indispensable for the interaction with VAV3 in chicken DT40 cells

1059 views | Jan 18 2017

Chihara K, et al.'s data suggest that 3BP2 is involved in the activation of Rac1 through the regulation of Vav3 by Syk-dependent phosphorylation of Tyr(426) following BCR stimulation. [Read the Full Post]