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Blog of Signaling Pathways

DNA-PK inhibition by NU7441 sensitizes breast cancer cells to ionizing radiation and doxorubicin

144 views | Mar 26 2019

Ciszewski WM et al. indicated that DNA-PK might be an effective target for chemo- and radio-potentiation in breast cancer and suggest that further development of DNA-PK inhibitors for clinical use is warranted. [Read the Full Post]

Tyrosyl-DNA phosphodiesterase and the repair of 3'-phosphoglycolate-terminated DNA double-strand breaks

122 views | Mar 26 2019

Zhou T et al. indicated This chromosomal hypersensitivity, as well as a small but reproducible enhancement of calicheamicin cytotoxicity following siRNA-mediated TDP1 knockdown, suggests a role for TDP1 in repair of 3'-PG double-strand breaks in vivo. [Read the Full Post]

Lenvatinib versus placebo in radioiodine-refractory thyroid cancer

96 views | Mar 25 2019

Schlumberger M et al. indicated that Lenvatinib, as compared with placebo, was associated with significant improvements in progression-free survival and the response rate among patients with iodine-131-refractory thyroid cancer. Patients who received lenvatinib had more adverse effects. [Read the Full Post]

E7080 (lenvatinib), a multi-targeted tyrosine kinase inhibitor, demonstrates antitumor activities against colorectal cancer xenografts

97 views | Mar 25 2019

Wiegering A et al. suggested antiangiogenic activity of E7080 at a dosage that was well tolerated by nude mice. E7080 may provide therapeutic benefits in the treatment of CRC with mutated KRAS. [Read the Full Post]

The Sirt1 activator, SRT1720, attenuates renal fibrosis by inhibiting CTGF and oxidative stress

73 views | Mar 24 2019

Ren Y et al. indicated that the Sirt1 activator, SRT1720, exerts protective effects against UUO-induced tubulointerstitial fibrosis. The mechanisms of action of SRT1720 may include, at least in part, the suppression of renal oxidative stress and the TGF-β1/CTGF signalling pathway. The Sirt1 activator may therefore be prove to be a potent therapeutic agent for the treatment of fibrotic kidney disease. [Read the Full Post]

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

124 views | Mar 24 2019

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]

Ten-Year and Beyond Follow-up After Treatment With Highly Purified Liquid-Injectable Silicone for HIV-Associated Facial Lipoatrophy: A Report of 164 Patients

58 views | Mar 22 2019

Jones DH et al. showed that liquid-injectable silicone is an effective long-term treatment option for HIV-FLA. When injected in small quantities with the microdroplet serial puncture technique at monthly or greater intervals, optimal correction appears durable for more than 10 years. Adverse events consisted mostly of excess fibroplasia and were treatable. [Read the Full Post]

5-FU therapeutic drug monitoring as a valuable option to reduce toxicity in patients with gastrointestinal cancer

70 views | Mar 22 2019

Morawska K et al. showed at a cycle 1, the 5-FU dose was calculated using patient's Body Surface Area (BSA) method. A blood sample was drawn on Day 2 to measure 5-FUconcentration. At cycle 2, the 5-FU dose was adjusted using a PK-guided dosing strategy targeting a plasma AUC range of 18-28 mg·h/L, based on cycle 1 concentration. Assessments of toxicity was performed at the beginning of every cycle. [Read the Full Post]

Safety and Efficacy Profile of Neratinib: A Systematic Review and Meta-Analysis of 23 Prospective Clinical Trials

146 views | Mar 20 2019

Tao Z et al. demonstrated that neratinib provides a benefit in survival outcome. When combined with other anticancer agents, neratinib may hold promise for treating breast cancer with central nervous system metastases. [Read the Full Post]

[Evolving 5-Fluorouracil Therapy to Achieve Enhanced Efficacy-Past and Current Efforts of Researchers]

45 views | Mar 20 2019

Maehara Y et al. indicated that in the current standard treatment for gastrointestinal cancers, anticancer 5-FU derivatives serve as a platform for combination regimens with other cytotoxic agents or molecular- targeted drugs. To provide further improvements in anticancer therapy outcomes, novel molecular-targeted agents, immune checkpoint inhibitors, and other drugs are being developed, but 5-FU remains an attractive target that shows further potential for increased efficacy. In the future, the evolution of anticancer therapy with 5-FU derivatives is expected to continue via a variety of approaches. [Read the Full Post]

Down-regulation of JMJD5 suppresses metastasis and induces apoptosis in oral squamous cell carcinoma by regulating p53/NF-κB pathway

238 views | Mar 19 2019

Yao Y et al. supplied mechanistic insights into the effects of JMJD5 on the modulation of OSCC development, illustrating that JMJD5 might be an essential prognostic indicator and therapeutic target against OSCC progression. [Read the Full Post]

Neratinib after trastuzumab-based adjuvant therapy in HER2-positive breast cancer (ExteNET): 5-year analysis of a randomised, double-blind, placebo-controlled, phase 3 trial

161 views | Mar 19 2019

Martin M et al. showed that at the 5-year follow-up, 1 year of extended adjuvant therapy with neratinib, administered after chemotherapy and trastuzumab, significantly reduced the proportion of clinically relevant breast cancer relapses-ie, those that might lead to death, such as distant and locoregional relapses outside the preserved breast-without increasing the risk of long-term toxicity. An analysis of overall survival is planned after 248 events. [Read the Full Post]

The CDK4/6 inhibitor LY2835219 has potent activity in combination with mTOR inhibitor in head and neck squamous cell carcinoma

42 views | Mar 18 2019

Ku BM et al. suggested that a combinational treatment with LY2835219 and mTOR inhibitor is a promising therapeutic approach for HNSCC. [Read the Full Post]

Neuroprotection with the P53-Inhibitor Pifithrin-μ after Cardiac Arrest in a Rodent Model

246 views | Mar 18 2019

Glas M et al. indicated that temporarily inhibition of apoptosis with pifithrin-μ after cardiac arrest decreases the number of injured neurons in the CA1 segment of hippocampus in a cardiac arrest rat model, without clinical correlate. Further studies should elucidate the role of this neuroprotective agent in different settings and with longer cardiac arrest. [Read the Full Post]

Oral Ixazomib, Lenalidomide, and Dexamethasone for Multiple Myeloma

80 views | Mar 17 2019

Moreau P et al. showed the addition of ixazomib to a regimen of lenalidomide and dexamethasone was associated with significantly longer progression-free survival; the additional toxic effects with this all-oral regimen were limited. (Funded by Millennium Pharmaceuticals; TOURMALINE-MM1 ClinicalTrials.gov number, NCT01564537.). [Read the Full Post]

MLN2238 synergizes BH3 mimetic ABT-263 in castration-resistant prostate cancer cells by induction of NOXA

113 views | Mar 17 2019

Wei X et al. indicated that NOXA knockdown by short hairpin RNA significantly attenuated the cytotoxicity of ABT-263 and MLN2238 co-administration. In conclusion, MLN2238 and ABT-263 synergistically triggered apoptosis in CRPC cells by upregulating NOXA and activating Bax, indicating a promising therapeutic strategy for the treatment of CRPC. [Read the Full Post]

Ultraviolet A eye irradiation ameliorates colon carcinoma induced by azoxymethane and dextran sodium sulfate through β-endorphin and methionine-enkephalin

0 views | Mar 16 2019

Hiramoto K et al. suggested that UVA eye irradiation exerts major effects on AOM + DSS-induced colon carcinoma. [Read the Full Post]

The microRNA-7-mediated reduction in EPAC-1 contributes to vascular endothelial permeability and eNOS uncoupling in murine experimental retinopathy

57 views | Mar 16 2019

Garcia-Morales V et al. indicated that EPAC-1 resembles an efficacious and druggable target molecule for the amelioration of (diabetic) retinopathy. [Read the Full Post]

Clinical evaluation of laboratory methods to monitor exposure of rivaroxaban at trough and peak in patients with atrial fibrillation

57 views | Mar 15 2019

Al-Aieshy F et al. found that the POC assay for PT-INR could be useful to indicate high exposure to rivaroxaban in emergency situations although further validation is required. [Read the Full Post]

Monitoring the Activation of the DNA Damage Response Pathway in a 3D Spheroid Model

103 views | Mar 15 2019

Mondesert O et al. demonstrated that DDR activation and its pharmacological manipulation with inhibitory and activatory compounds can be efficiently monitored in live 3D spheroid model. [Read the Full Post]