Chu Sainte-justine

Hopital Sainte-justine

Valorisation Hsj, Limited Partnership

Alain Moreau

Marie-Yvonne Akoume Ndong

Genevieve Mailhot

Mohamed Elbakry

Guoruey Wong

Geneviève Mailhot

The present invention provides a method of treating a subject in need thereof comprising classifying the subject into functional group FG1, FG2 or FG3, wherein i) when the subject is classified into the FG1 functional group, (A) the level of OPN or the activity of OPN in said subject is increased; (B) the subject is not treated with a brace; or (C) a combination of (A) and (B); and ii) when the subject is classified into the FG2 or FG3 functional group, (A) the level of OPN or the activity of OPN in said subject is decreased; (B) the subject is treated with a brace; or (C) a combination of (A) and (B).

Method of treating and prognosing scoliotic patient subgroups

Methods for diagnosing a predisposition to developing a scoliosis (e.g., adolescent idiopathic scoliosis (AIS)) and identifying compounds for treating scoliosis based on the modulation of Gi protein-coupled receptor activity are described. Specific embodiments of the methods involve measuring a change in impedance signals of cells expressing a receptor coupled to a Gi protein with a ligand. To identify compounds useful in treatment, the cell is contacted with a test compound and a ligand. A higher impedance in the presence relative to the absence of said test compound is indicative that the test compound is useful for treating scoliosis.

Electrified compositions for determining the risk of developing adolescent idiopathic scoliosis through the use of GI protein receptor

A method of predicting the risk of developing osteoarthritis (OA) comprising: (a) measuring the nuclear cellular level of prohibitin (PHB-1) in nucleated cells present in a blood sample from a subject having or suspected of having OA; and (b) comparing said nuclear cellular level to that corresponding to a control sample; and (c) identifying the subject as being at risk of developing OA when the nuclear cellular level of said PHB-1 in said blood sample is higher than in the control sample; and a composition for determining the risk of developing osteoarthritis (OA), said composition comprising: a cell sample from a subject; and a non-naturally occurring molecule for detecting nuclear accumulation of PHB1.

Methods for diagnosing osteoarthritis

A method of classifying a subject having idiopathic scoliosis (IS) or at risk of developing IS comprising: determining the cellular response to Gi stimulation in a cell sample from the subject in the presence of OPN; determining the cellular response to Gi stimulation in a cell sample from the subject in the absence of OPN; and comparing the cellular response obtained in the presence of OPN with the cellular response obtained in the absence of OPN, whereby the comparing step enables the classification of the subject into one IS functional group. Also provided is the use of the foregoing method to classify borderline subjects and kits for applying the methods.

Kits for classifying a subject having or at risk for developing idiopathic scoliosis

A method for the prevention or treatment of scoliosis in a human subject comprising: (a)(i) measuring osteopontin (OPN) protein expression in a biological fluid sample from the subject over time; or (ii) measuring osteopontin (OPN) protein expression in a biological fluid sample from the subject and comparing the OPN protein expression to an OPN protein expression in a control biological fluid sample; (b) identifying the subject as being at risk of developing scoliosis when OPN protein expression increases in the subject sample over time; or when OPN protein expression is higher in the subject sample than that in the control sample; and (c) reducing OPN protein levels in the subject identified as being at risk of developing a scoliosis, thereby aiding in the prevention or treatment of scoliosis.

Methods for the prevention or treatment of scoliosis

Methods of stratifying a subject having or at risk for developing adolescent idiopathic scoliosis (AIS) into diagnostically or clinically useful subclasses are provided. The stratification is based on the subject's PTP&#x3bc; expression and/or activity and/or PIPK1&#x3b3; expression and/or activity. Also provided are methods of predicting the risk of developing a scoliosis also based on the subject's PTP&#x3bc; expression and/or activity and/or PIPK1&#x3b3; expression and/or activity; and methods of increasing GiPCR signaling in cells of a subject in need thereof comprising administering to the subject's cells an effective amount of an inhibitor of PIPK1&#x3b3; tyrosine phosphorylation; an activator of PIPK1Y tyrosine dephosphorylation; and/or an inhibitor of PIPK1&#x3b3; expression and/or activity.

Composition comprising a cell sample from a subject with scoliosis and a reagent for detecting PTP&#x3bc; or PIPK1y

Methods for diagnosing a scoliosis (e.g., adolescent idiopathic scoliosis (AIS)) and/or a predisposition to developing a scoliosis based on the determination of the variation of osteopontin (OPN) levels induced by mechanical forces/stimuli are described.

Biomechanical-based methods of diagnosing scoliosis

A method of classifying a human subject having adolescent idiopathic scoliosis (AIS) comprising: providing a cell sample isolated from the subject; detecting an impairment in melatonin-signaling pathway in the sample in the presence and in the absence of a known melatonin-signaling pathway agonist, whereby the results of the detecting step enables the classification of the subject having AIS in one AIS subgroup; and a method of screening for a compound useful in the treatment of a disease characterized by a dysfunctional melatonin-signaling pathway, said method comprising the steps of contacting a candidate compound with at least one cell expressing at least one melatonin-signaling pathway impairment, wherein the candidate compound is selected if said melatonin-signaling pathway impairment is reduced in the presence of the candidate compound as compared to that in the absence thereof.

Method of classifying human subjects having adolescent idiopathic scoliosis (AIS) and method for screening for a compound useful in the treatment of AIS and related syndromes causing spinal deformities

Compounds, methods, uses, compositions, kits and packages for the treatment of imbalance between bone resorption and bone formation, based on uses of 4-phenyl-2-propionamidotetralin (4-P-PDOT) and analogs, derivatives, prodrugs, precursors thereof, and salts thereof, are described.

Methods of correcting imbalance between bone resorption and bone formation and kits and compositions therefor

Compounds, methods, uses, compositions, kits and packages for the treatment of imbalance between bone resorption and bone formation, based on uses of 4-phenyl-2 propionamidotetralin (4-P-PDOT) and analogs, derivatives, prodrugs, precursors thereof, and salts thereof, are described.

Method of correcting imbalance between bone resorption and bone formation and kits and compositions therefor

A method for classifying human subjects having adolescent idiopathic scoliosis (AIS) into AIS subgroups, comprising detecting an impairment in the melatonin-signaling pathway in a cell sample from the subject, wherein the impairment is detected by an accumulation of cyclic adenosine 5'-monophosphate (cAMP) in the cell sample as compared to a control sample in the presence of a known melatonin-signaling pathway agonist, wherein the results of the detection step enable the classification of the subject having AIS into an AIS subgroup.

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Montreal, Canada

Alain Moreau