In vitro profile of the new inhaled pan-JAK inhibitor LAS194046
I. Ramis, C. Carreño, A. Orellana, M. Maldonado, J. Bach, M. Miralpeix (Sant Feliu de Llobregat, Spain)
Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs
Session: New treatments for cough, asthma, COPD and ILDs
Session type: Poster Discussion
Number: 1508
Disease area: Airway diseases
Abstract Introduction : Janus kinase (JAK) is a novel anti-inflammatory target for asthma and COPD. In our internal discovery efforts we have identified LAS194046 as a potent pan-JAK inhibitor that blocks multiple cytokine receptor signaling depending on JAK1, JAK2, JAK3 and Tyk2.Aim : To characterize the enzymatic and cellular potency and the selectivity of JAK inhibitor LAS194046 compared with the reference compounds ruxolitinib and tofacitinib.Methods : JAK1, JAK2, JAK3 and Tyk2 kinase activities were assessed by HTRF assays. Inhibition of phosphorylation of downstream STAT (pSTAT) upon cytokine stimulation in human PBMCs was measured by flow cytometry: IL4-induced pSTAT6 (via JAK1/3), GM-CSF-induced pSTAT5 (via JAK2/2), IFNa -induced pSTAT1 (via JAK1/Tyk2) and IL12-induced pSTAT4 (via Jak2/Tyk2).The selectivity profile was assessed at 10 mM in a Millipore Kinase Profiler panel comprising 38 kinases.Results : LAS194046 inhibits JAK1, JAK2 and JAK3 kinase activity with similar potency to ruxolitinib and tofacitinib (IC50 :>10 nM). The compound also inhibits Tyk2 with higher potency than tofacitinib (8-fold) and lower than ruxolitinib (15-fold less). In PBMCs the three compounds inhibits JAK1/3 and JAK1/Tyk2 assays (IC50 < 50 nM). LAS194046 and ruxolitinib inhibits JAK2/2 (IC50 <40 nM) with higher potency than tofacitinib (7-fold). LAS194046 inhibits JAK2/Tyk2 assay with lower potency than ruxolitinib. No relevant off-target activities were identified.Conclusions : LAS194046 is a potent pan-JAK inhibitor, that inhibits JAK1/2/3 and Tyk2 activities and associated cytokine receptor signaling. The promising in vitro profile of LAS194046 supports to further characterize its ADME properties and in vivo efficacy by inhaled route.
Rating:
You must login to grade this presentation.
Share or cite this content
Citations should be made in the following way:
I. Ramis, C. Carreño, A. Orellana, M. Maldonado, J. Bach, M. Miralpeix (Sant Feliu de Llobregat, Spain). In vitro profile of the new inhaled pan-JAK inhibitor LAS194046. Eur Respir J 2014; 44: Suppl. 58, 1508
You must login to share this Presentation/Article on Twitter, Facebook, LinkedIn or by email.
Member's Comments
Related content which might interest you:
Related content which might interest you:
In vitro characterization of a novel inhaled PI3Kd inhibitor LAS194223Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs Year: 2014
A novel inhaled PI3Kδ inhibitor, LAS194223 reduces allergen-induced airway inflammation in rat Source: International Congress 2014 – New drugs for asthma, COPD and pulmonary fibrosis Year: 2014
Therapeutic potential of CPL-407-105 – Novel potent JAK/STAT pathway inhibitor for the treatment of asthma Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs Year: 2014
New inhaled JAK inhibitor LAS194046 inhibits allergen-induced airway inflammation in Brown Norway rats Source: International Congress 2014 – New drugs for asthma, COPD and pulmonary fibrosis Year: 2014
The effect of the inhaled PDE4 inhibitor CHF6001 on allergen-induced inflammation in asthmatics Source: International Congress 2014 – Asthma and COPD management Year: 2014
In vivo efficacy of CHF6001, an inhaled PDE4 inhibitor with a wide therapeutic window Source: International Congress 2014 – Animal models in respiratory drug development Year: 2014
Additive anti-inflammatory effect of glucocorticoids and PDE4 inhibitors on COPD CD8 cells Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs Year: 2014
AZD5069: Pharmacological profile of a CXCR2 antagonist in development for the treatment of respiratory disorders Source: International Congress 2014 – Novel evidence relating to respiratory treatment development Year: 2014
The inverse agonist propranolol does not confer steroid-sparing activity in persistent asthma Source: International Congress 2014 – Clinical trials of drugs and biomarkers for respiratory diseases Year: 2014
Preclinical characterization of CPL-302-201, a novel, highly potent and selective PI3Kδ inhibitor for the treatment of inflammatory disorders Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs Year: 2014
Clinical effectiveness of anti-IgE therapy in allergic severe asthma Source: International Congress 2014 – Asthma and COPD management Year: 2014
RP6503, a novel and selective PI3K δ/gamma inhibitor, potentiates the effect of steroids in pre-clinical models of COPD Source: International Congress 2014 – New treatments for cough, asthma, COPD and ILDs Year: 2014
Inhibition of JAK/STAT pathway in airway epithelium as a potential targeted therapy of asthma Source: International Congress 2014 – New drugs for asthma, COPD and pulmonary fibrosis Year: 2014
The in vitro profile of ADC3680, a potent and selective CRTh2 antagonist for the treatment of inadequately controlled asthma Source: Annual Congress 2013 –Novel drugs and biomarkers in respiratory medicine Year: 2013
Reduction in systemic inflammation by the PDE4 inhibitor roflumilast in patients with COPD Source: International Congress 2014 – Asthma and COPD devices and treatments Year: 2014
Enhanced anti-inflammatory gene expression in humans following inhaled budesonide Source: Annual Congress 2013 –Novel pharmacological findings in the management of respiratory disorders Year: 2013
Safety profile and pharmacokinetics of an inhaled GATA-3-specific DNAzyme in a phase Ib study in patients with stable allergic asthma Source: Annual Congress 2013 –Emerging new targets for the treatment of respiratory diseases Year: 2013
Comparison of three modalities of corticosteroids administration in chronic rhinosinusitis Source: International Congress 2014 – Novel evidence relating to respiratory treatment development Year: 2014
Abediterol: Efficacy, safety and tolerability of the novel LABA in patients with persistent asthma Source: International Congress 2014 – Clinical trials of drugs for respiratory diseases Year: 2014
The novel elastase inhibitor BAY 85-8501 provides a new approach in the treatment of pulmonary diseases Source: International Congress 2014 – New drugs for asthma, COPD and pulmonary fibrosis Year: 2014