Blog of Signaling Pathways

Acetylation of p53 Protein at Lysine 120 Up-regulates Apaf-1 Protein and Sensitizes the Mitochondrial Apoptotic Pathway

0 views | May 12 2018

Yun T et al. found that HDAC inhibitors can induce p53 acetylation at lysine 120, which in turn enhances mitochondrion-mediated apoptosis through transcriptional up-regulation of Apaf-1. [Read the Full Post]

Investigating proteasome inhibitors as potential adjunct therapies for experimental cerebral malaria

1064 views | May 11 2018

Howland SW et al. reported here that bortezomib, which has been associated with neurological adverse events, accelerated death in ECM-infected mice. [Read the Full Post]

Gp130-mediated STAT3 activation by S-propargyl-cysteine, an endogenous hydrogen sulfide initiator, prevents doxorubicin-induced cardiotoxicity

1276 views | May 11 2018

Wu J et al. offered a novel molecular basis and therapeutic strategy of H2S donor for the treatment of heart failure. [Read the Full Post]

Identification of TG100-115 as a new and potent TRPM7 kinase inhibitor, which suppresses breast cancer cell migration and invasion

729 views | May 10 2018

Song C et al. indicated that TG100-115 can be used as a potent TRPM7 kinase inhibitor and a potent inhibitor of breast cancer cell migration. [Read the Full Post]

Therapeutic implication of HER2 in advanced biliary tract cancer

1443 views | May 10 2018

Nam AR et al. suggested that HER2 could be a therapeutic target, and that a HER2-targeting strategy should be developed further in patients with HER2-positive advanced BTC. [Read the Full Post]

Increased translocation of antigens to endosomes and TLR4 mediated endosomal recruitment of TAP contribute to nicotine augmented cross-presentation

808 views | May 09 2018

Wang YY et al. suggested that increased recruitment of TAP to Ag-containing vesicles contributes to the superior cross-presentation efficacy of α7 nAchR activated DCs. [Read the Full Post]

Dihydroartemisinin restricts hepatic stellate cell contraction via an FXR-S1PR2-dependent mechanism

846 views | May 09 2018

Xu W et al. suggested that DHA could restrict HSC contraction through modulating FXR/S1PR2 pathway-mediated Ca(2+) -dependent and Ca(2+) -sensitization signaling. Our discoveries make DHA a potential candidate for portal hypertension. [Read the Full Post]

A repressive role of enhancer of zeste homolog 2 in 11β-hydroxysteroid dehydrogenase type 2 expression in the human placenta

1989 views | May 08 2018

Zuo R et al. found that enhancer of zeste homolog 2 (EZH2) accounts for the silence of 11β-HSD2 expression via trimethylation of histone H3 lysine 27 at the promoter of the 11β-HSD2 gene. [Read the Full Post]

Anandamide Suppresses Proinflammatory T Cell Responses In Vitro through Type-1 Cannabinoid Receptor-Mediated mTOR Inhibition in Human Keratinocytes

792 views | May 08 2018

Chiurchiù V et al. demonstrated that AEA suppresses highly pathogenic T cell subsets through CB1-mediated mammalian target of rapamycin inhibition in human keratinocytes. Thus, it can be speculated that the latter pathway might be beneficial to the physiological function of the skin, and can be targeted toward inflammation-related skin diseases. [Read the Full Post]

Oncogenic epithelial cell-derived exosomes containing Rac1 and PAK2 induce angiogenesis in recipient endothelial cells

0 views | May 07 2018

Gopal SK et al. demonstrated for the first time that oncogenic cells undergoing EMT can communicate with endothelial cells via exosomes, and establish exosomal Rac1/PAK2 as angiogenic promoters that may function from early stages of the metastatic cascade. [Read the Full Post]

Phosphoproteome Profiling of SH-SY5y Neuroblastoma Cells Treated with Anesthetics: Sevoflurane and Isoflurane Affect the Phosphorylation of Proteins Involved in Cytoskeletal Regulation

864 views | May 07 2018

Lee J et al. showed that anesthetics affect the phosphorylation of proteins involved in cytoskeletal remodeling pathways. [Read the Full Post]

PPARβ/δ activation protects against corticosterone-induced ER stress in astrocytes by inhibiting the CpG hypermethylation of microRNA-181a

2343 views | May 06 2018

Ji J et al. suggested that PPARβ/δ activation in astrocytes might be a promising target for regulating ER stress-induced astrocytic injury. [Read the Full Post]

Multi-omics maps of cotton fibre reveal epigenetic basis for staged single-cell differentiation

1234 views | May 06 2018

Wang M et al. illustrated two divergent pathways mediating a continuous increase of DNA methylation and also sheds further light on the epigenetic basis for single-cell differentiation in plants. [Read the Full Post]

Jumonji AT-rich interactive domain 1B overexpression is associated with the development and progression of glioma

1043 views | May 05 2018

Fang L et al. suggested that JARID1B is involved in the pathogenesis of glioma, and that the downregulation of JARID1B in glioma cells may be a therapeutic target for the treatment of patients with glioma. [Read the Full Post]

Co-occurring Mutations of Tumor Suppressor Genes, LATS2 and NF2, in Malignant Pleural Mesothelioma

1184 views | May 05 2018

Tranchant R et al. identified a new MPM molecular subgroup that shares common genetic and transcriptomic characteristics. Our results made it possible to highlight a greater sensitivity to an anticancer compound for this MPM subgroup and to identify a specific potential biomarker. [Read the Full Post]

Reduced expression of CD109 in tumor-associated endothelial cells promotes tumor progression by paracrine interleukin-8 in hepatocellular carcinoma

774 views | May 04 2018

Ye BG et al. indicated that CD109 expression on tumor vessels is a potential prognostic marker for HCC, and its reduced expression on TEC promoted tumor progression by paracrine IL-8. [Read the Full Post]

HCV core protein binds to gC1qR to induce A20 expression and inhibit cytokine production through MAPKs and NF-κB signaling pathways

2081 views | May 04 2018

Song X et al. suggested that HCV core protein ligates gC1qR to induce A20 expression in macrophages via P38, JNK and NF-κB signaling pathways, which leads to a low-grade chronic inflammation during HCV infection. It represents a novel mechanism by which HCV usurps the host for persistence. [Read the Full Post]

FGF19 promotes epithelial-mesenchymal transition in hepatocellular carcinoma cells by modulating the GSK3β/β- catenin signaling cascade via FGFR4 activation

3146 views | May 03 2018

Zhao H et al. indicated that FGFR4/GSK3β/β-catenin axis may play a pivotal role in FGF19-induced EMT in HCC cells. As FGF19 and its specific receptor FGFR4 are frequently amplified in HCC cells, selective targeting this signaling node may lend insights into a potential effective therapeutic approach for blocking metastasis of HCC. [Read the Full Post]

Uterine RAC1 via Pak1-ERM signaling directs normal luminal epithelial integrity conducive to on-time embryo implantation in mice

843 views | May 03 2018

Tu Z et al. demonstrated that Rac1 via P38 MAPK signaling ensures timely epithelial apoptotic death at postimplantation. Besides uncovering a potentially important molecule machinery governing uterine luminal integrity for embryo implantation, our finding has high clinical relevance, because Rac1 is essential for normal endometrial functions in women. [Read the Full Post]

Identification of different ALK mutations in a pair of neuroblastoma cell lines established at diagnosis and relapse

1137 views | May 02 2018

Chen L et al. showed that use both Sanger and targeted deep sequencing, this study describes the identification of distinct ALK mutations in these paired cell lines, including the rare R1275L mutation, which has not previously been reported in a neuroblastoma cell line. Analysis of the sensitivity of NBLW and NBLW-R cells to a panel of ALK inhibitors (TAE-684, Crizotinib, Alectinib and Lorlatinib) revealed differences between the paired cell lines, and overall NBLW-R cells with the F1174L mutation were more resistant to ALK inhibitor induced apoptosis compared with NBLW cells. This pair of cell lines represents a valuable pre-clinical model of clonal evolution of ALK mutations associated with neuroblastoma progression. [Read the Full Post]