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Blog of Signaling Pathways

Glucocorticoid receptor antagonism overcomes resistance to BRAF inhibition in BRAFV600E-mutated metastatic melanoma

131 views | Jan 09 2020

Estrela JM et al. found that melanoma resistance is decreased if AKT and NF-κB signaling pathways are blocked. [Read the Full Post]

VCAM-1 Upregulation Contributes to Insensitivity of Vemurafenib in BRAF-Mutant Thyroid Cancer

142 views | Jan 09 2020

Chen S et al. demonstrated that VCAM-1 is upregulated in thyroid cancer cells treated with vemurafenib and contributes to vemurafenib resistance in BRAF-mutant thyroid cancer cells. [Read the Full Post]

17-AAG inhibits vemurafenib-associated MAP kinase activation and is synergistic with cellular immunotherapy in a murine melanoma model

256 views | Jan 08 2020

Joshi SS et al. indicated their sdudies support a role for 17-AAG and HSP90 inhibition in enhancing cellular immunotherapy for melanoma. [Read the Full Post]

JPH203, a selective L-type amino acid transporter 1 inhibitor, induces mitochondria-dependent apoptosis in Saos2 human osteosarcoma cells

109 views | Jan 08 2020

Choi DW et al. suggested that the inhibition of LAT1 activity via JPH203, which may act as a potential novel anti-cancer agent, leads to apoptosis mediated by the mitochondria-dependent intrinsic apoptotic signaling pathway by inducing the intracellular depletion of neutral amino acids essential for cell growth in Saos2 human osteosarcoma cells. [Read the Full Post]

BIRB 796 has Distinctive Anti-inflammatory Effects on Different Cell Types

153 views | Jan 07 2020

Ryoo S et al. suggested that the anti-inflammatory function of BIRB 796 depends on cell types. [Read the Full Post]

Tanespimycin as antitumor therapy

0 views | Jan 07 2020

Dimopoulos MA et al. indiacated that tanespimycin represents a promising new agent for the treatment of relapsed/refractory MM. Results of ongoing and future trials will determine the role of tanespimycin both in MM and other malignancies, including breast cancer. [Read the Full Post]

PI3K inhibitor LY294002, as opposed to wortmannin, enhances AKT phosphorylation in gemcitabine-resistant pancreatic cancer cells

223 views | Jan 06 2020

Wang Y et al. revealed that LY294002 displays the opposite effect on PI3K-dependent AKT phosphorylation, which maintains cell survival from the cytotoxicity introduced by LY294002 itself in GEM-resistant pancreatic cancer cells. We suggest that targeting the PI3K/AKT signaling pathway with inhibitors may be counterproductive for patients with PC who have acquired GEM-resistance. [Read the Full Post]

In vitro anti-osteoclastogenic activity of p38 inhibitor doramapimod via inhibiting migration of pre-osteoclasts and NFATc1 activity

0 views | Jan 06 2020

Moon SH et al. suggested anti-osteoclastogenic activity of doramapimod via inhibiting migration/fusion of pre-osteoclasts and NFATc1 activity. [Read the Full Post]

Predictability, efficacy and safety of radiosensitization of glioblastoma-initiating cells by the ATM inhibitor KU-60019

169 views | Jan 05 2020

Vecchio D et al. suggested that GIC-driven tumors with low expression of TP53 and high expression of PI3K might be effectively and safely radiosensitized by KU-60019. [Read the Full Post]

Napabucasin: An Update on the First-in-Class Cancer Stemness Inhibitor

0 views | Jan 05 2020

Hubbard JM and Grothey A indicated that napabucasin may prove useful in targeting cancer stem cells, with the potential to suppress metastasis and prevent relapse in patients with varying cancer types. [Read the Full Post]

Biomarkers of response and resistance to PI3K inhibitors in estrogen receptor-positive breast cancer patients and combination therapies involving PI3K inhibitors

108 views | Jan 04 2020

Brandão M at al. described the rational for new combination therapies involving PI3Ki and anti-HER2 agents, chemotherapy, CDK4/6 inhibitors, mTOR inhibitors or new endocrine treatments and discuss the ongoing trials in this field. [Read the Full Post]

Diacylglycerol kinase δ destabilizes serotonin transporter protein through the ubiquitin-proteasome system

182 views | Jan 04 2020

Lu Q et al. provide novel insights into serotonergic system regulation and the pathophysiology/therapeutics of serotonin-/SERT-related diseases such as obsessive-compulsive disorder, depression, autism and schizophrenia. [Read the Full Post]

Generation of Urine Cell-Derived Non-integrative Human iPSCs and iNSCs: A Step-by-Step Optimized Protocol

0 views | Jan 03 2020

Cheng L et al. showed the optimized protocol is an easy and fast procedure to yield both iPSC and iNSC lines from a convenient source of human urine in a single experiment. [Read the Full Post]

Ricolinostat (ACY-1215) suppresses proliferation and promotes apoptosis in esophageal squamous cell carcinoma via miR-30d/PI3K/AKT/mTOR and ERK pathways

194 views | Jan 03 2020

Cao J et al. showed that ACY-1215 suppressed proliferation and promoted apoptosis in ESCC via miR-30d/PI3K/AKT/mTOR and ERK pathways and that ACY-1215 may be a promising antitumor agent in ESCC. [Read the Full Post]

P53 inhibitor pifithrin-α prevents the renal tubular epithelial cells against injury

355 views | Jan 02 2020

Shen YL et al. indicated that pifithrin-α can facilitate the progression of renal tubular epithelial cells through G2/M phase, protecting them against injury. [Read the Full Post]

Sesamin suppresses NSCLC cell proliferation and induces apoptosis via Akt/p53 pathway

168 views | Jan 02 2020

Chen Y et al. demonstrated that sesamin suppresses NSCLC cell proliferation by induction of G1 phase cell cycle arrest and apoptosis via Akt/p53 pathway. Therefore, sesamin may be a promising adjuvant treatment for NSCLC therapy. [Read the Full Post]

Histone acetyltransferase p300/CBP inhibitor C646 blocks the survival and invasion pathways of gastric cancer cell lines

0 views | Jan 01 2020

Wang YM et al. suggested that C646 inhibits the acetylation of histone H3 via inactivation of p300 and CBP, resulting in antineoplastic effects toward GC cells. Thus, the selective HAT inhibitor C646 could be a promising antitumour reagent for GC treatment. [Read the Full Post]

Hypoxia-inducible factor prolyl hydroxylase inhibitor roxadustat (FG-4592) protects against cisplatin-induced acute kidney injury

152 views | Jan 01 2020

Yang Y et al. indicated that FG-4592 treatment remarkably ameliorated the cisplatin-induced kidney injury possibly through the stabilization of HIF. Thus, besides the role in treating CKD anemia, the clinical use of FG-4592 also could be extended to AKI. [Read the Full Post]

Identification of RNPC3 as a novel JAK2 fusion partner gene in B-acute lymphoblastic leukemia refractory to combination therapy including ruxolitinib

282 views | Dec 31 2019

Chen X et al. suggested the potential need for a diagnostic FISH analysis as well as RNA-Seq in the appropriate clinical setting. [Read the Full Post]

Effects of pharmacogenetic variants on vemurafenib-related toxicities in patients with melanoma

116 views | Dec 31 2019

Goey AK found that genetic variants in CYP3A4 and ABCB1 are associated with vemurafenib-associated toxicities. [Read the Full Post]