Blog of Signaling Pathways

Slow release of etoposide from dextran conjugation shifts etoposide activity from cytotoxicity to differentiation: A promising tool for dosage control in anticancer metronomic therapy

234 views | Apr 01 2019

De Nicola M et al. indicated slow release as a promising novel strategy for stabilizing low drug levels in metronomic regimens. [Read the Full Post]

Roxadustat in the treatment of anaemia in chronic kidney disease

370 views | Mar 31 2019

Del Vecchio L et al showed that Roxadustat is a chemical drug and thus has the potential of being cheaper than traditional ESAs. Given that the peaks of endogenous EPO are much lower than those observed with traditional ESA, it is possible to speculate the roxadustat (and more in general PHD inhibitors) will be safer than ESA on cardiovascular safety end-points. Considering that HIFs are involved in different pathways, with possible promotion of relevant side effects, their safety must be proven in long-term studies. [Read the Full Post]

Phase 2 studies of oral hypoxia-inducible factor prolyl hydroxylase inhibitor FG-4592 for treatment of anemia in China

352 views | Mar 31 2019

Chen N et al. showed that FG-4592 may prove an effective alternative for managing anemia of CKD. It is currently being investigated in a pivotal global Phase 3 program. [Read the Full Post]

Functional and Mechanistic Interrogation of BET Bromodomain Degraders for the Treatment of Metastatic Castration Resistant Prostate Cancer

219 views | Mar 30 2019

Kregel S et al. identified increases in polyunsaturated fatty acids (PUFAs) and Thioredoxin-interacting protein (TXNIP) as potential pharmacodynamics biomarkers for targeting BET proteins. [Read the Full Post]

Ibrutinib for the treatment of chronic lymphocytic leukemia

338 views | Mar 30 2019

Novel, extremely promising, combination strategies, based on the association of ibrutinib with chemoimmunotherapy, antiCD20 monoclonal antibody or other targeted agents, are currently being investigated, with the goal of achieving greater depth of remission, especially MRD-negativity, and removing the need for indefinite treatment. [Read the Full Post]

MYC status as a determinant of synergistic response to Olaparib and Palbociclib in ovarian cancer

308 views | Mar 29 2019

Yi J et al. show for the first time that combining PARP and CDK4/6 inhibition has synergistic effects against MYC overexpressing ovarian cancer cells both in vitro and in vivo. [Read the Full Post]

Targeting Oxidative Stress With Auranofin or Prima-1Met to Circumvent p53 or Bax/Bak Deficiency in Myeloma Cells

172 views | Mar 29 2019

Tessoulin B et al. showed that auranofin and Prima-1Metsimilarly overcome cell death resistance in myeloma cells due to either p53 deficiency or to mitochondrial dysfunction. [Read the Full Post]

The SIRT1 inhibitor EX-527 suppresses mTOR activation and alleviates acute lung injury in mice with endotoxiemia

387 views | Mar 28 2019

Huang J et al. suggested that selective inhibition of SIRT1 by EX-527 might alleviate endotoxemia-associated acute lung injury partially via suppression of mTOR, which implies that SIRT1 selective inhibitors might have potential value for the pharmacological intervention of inflammatory lung injury. [Read the Full Post]

The antinociceptive effect of resveratrol in bone cancer pain is inhibited by the Silent Information Regulator 1 inhibitor selisistat

347 views | Mar 28 2019

Lux S et al. showed that acute and chronic resveratrol induces antinociceptive effect in the model of metastatic osseous oncological pain, an effect that would be mediated by SIRT1 molecular signalling. [Read the Full Post]

Effects of Combination of Estradiol with Selective Progesterone Receptor Modulators (SPRMs) on Human Breast Cancer Cells In Vitro and In Vivo

228 views | Mar 27 2019

Nair HB et al. hypothesized that a combination of estradiol (E2) with selective progesterone receptor modulator (SPRM) to exert a safer profile on endometrium will also reduce mammary gland proliferation and could be used to prevent breast cancer when used in MHT. [Read the Full Post]

Mechanisms of U46619-induced contraction in mice intrarenal arteries

600 views | Mar 27 2019

Yan H et al. suggested that the U46619-induced contraction of mouse intrarenal arteries is mediated by Cav1.2 and SOC channel, through the activation of thromboxane-prostanoid receptors and its downstream signaling pathway. [Read the Full Post]

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

508 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

472 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

371 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

364 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

368 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

545 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

198 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

239 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

453 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]