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Targeting FgfR2b for the Treatment of Adult Lung Injury

Technology Benefits

Proof of concept that FGFR2b can be used to isolate lung stem cells and that FGFR2b signaling is important for lung stem cell activation and therefore epithelial regeneration, tumor development as well as mucous cell hyperplasia.

Technology Application

Diagnostic: The ex-vivo detection of lung stem cells on histological samples using monoclonal antibodies (mAb) against FGFR2b. The presence of these stem cells is an indicator of lung injury and/or tumor development. This diagnostic approach could also prove useful to establish which subgroup of patients will benefit from anti-FGFR2b drugs.Therapeutic: The isolation of live lung airway stem cells from a biopsy sample using mAb against FGFR2b. These cells can be amplified ex-vivo and intratracheally instill back to the same patient to repair injured lungs or treatment of fibrosis. Also an aerosolized mAb that blocks FGFR2b could be used to inhibit the proliferation of airway stem cells in the case of lung cancer or their transdifferentiation into goblet cells/mucous producing cells in the case of asthma. Alternatively, agonist FGFR2b antibodies could be used to increase proliferation of airway stem cells after a lung injury and to protect against and/or cure lung fibrosis.

Detailed Technology Description

The epithelial cells that line the airways are constantly exposed to potential toxic agents and pathogens in the environment, and they must therefore be able to respond quickly and effectively to both cellular damage and local inflammation. The cellular hallmark of lung repair after injury of lung epithelial cells is a rapid proliferative response ultimately leading to restoration of the airway epithelium and function.Remodeling of the airway epithelium is a common pathological feature in chronic lung disease and a predisposing factor in the development of lung cancer. In young animals, tissue damage can usually be repaired quickly, but this natural capacity may fail after persistent injury and with age. Diseases such as cancer exploit the mechanisms by which the body normally rebuilds itself.

Supplementary Information

Patent Number: WO2011025814A1
Application Number: WO2010US46607A
Inventor: DELANGHE, Stijn, P.
Priority Date: 25 Aug 2009
Priority Number: WO2011025814A1
Application Date: 25 Aug 2010
Publication Date: 3 Mar 2011
IPC Current: A61K0039395
Assignee Applicant: National Jewish Health
Title: METHODS AND COMPOSITIONS FOR TREATMENT OF LUNG INJURY | PROCÉDÉS ET COMPOSITIONS DESTINÉS AU TRAITEMENT D'UNE LÉSION PULMONAIRE | PROCÉDÉS ET COMPOSITIONS DESTINÉS AU TRAITEMENT DUNE LÉSION PULMONAIRE
Usefulness: METHODS AND COMPOSITIONS FOR TREATMENT OF LUNG INJURY | PROCÉDÉS ET COMPOSITIONS DESTINÉS AU TRAITEMENT D'UNE LÉSION PULMONAIRE | PROCÉDÉS ET COMPOSITIONS DESTINÉS AU TRAITEMENT DUNE LÉSION PULMONAIRE
Summary: For treating a condition related to injury of lung epithelial cells in a subject (i.e. human), where the condition is selected from asthma, inflammation of the lungs, condition associated with exposure to environmental toxins, condition associated with exposure to bacteria, condition associated with exposure to a virus, cystic fibrosis, pneumonectomy and bleomycin mediated epithelial injury, or a condition associated with exposure to environmental toxins (selected from naphthalene, ozone, smoke, tobacco smoke, chemical fumes, exhaust, mustard gas, acid, aromatic hydrocarbons and radiation) (claimed).

Industry

Disease Diagnostic/Treatment

Sub Group

Cancer/Tumor

Country/Region

USA

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