METHOD FOR DETECTING AND/OR QUANTIFYING AN ANALYTE AT THE SURFACE OF A CELL
申请人:Bazin Hervé
公开号:US20140242611A1
公开(公告)日:2014-08-28
The invention relates to a method for quantifying a protein of interest expressed at the surface of a cell or else present in a tissue sample, said method comprising the use of two ligands capable of binding specifically to a domain of said protein.
METHOD FOR DETERMINING THE ABILITY OF AN ANTIBODY TO KEEP CELLS CLOSE TO ONE ANOTHER
申请人:CISBIO BIOASSAYS
公开号:US20150045253A1
公开(公告)日:2015-02-12
The invention relates to a method for determining the ability of a candidate antibody to keep a first cell and a second cell close to one another, said method comprising the following steps:
bringing said candidate antibody in contact with (i) a first cell expressing, in the extracellular portion of its plasma membrane, a first protein that is known to be or is suspected of being recognized by the candidate antibody and (ii) a second cell expressing, in the extracellular portion of the plasma membrane, a second protein that is also known to be or suspected of being recognized by the candidate antibody, each of the proteins being labeled with a member of a pair of FRET partners, and
measurement of the FRET signal and comparison with the signal measured in the absence of the candidate antibody.
The invention also relates to a reagent kit for carrying out this method.
METHOD FOR DETERMINING THE GLYCOSYLATION OF AN ANTIBODY
申请人:Jaga Delphine
公开号:US20150024410A1
公开(公告)日:2015-01-22
The invention relates to a method for detecting the binding of an antibody to an Fc receptor present on the surface of a cell as well as to a method for determining the level of glycosylation of an antibody. The invention also relates to a reagent kit for carrying out these methods.
METHOD FOR NORMALIZING THE LUMINESCENCE EMITTED BY A MEASURING MEDIUM
申请人:Mathis Gerard
公开号:US20150185150A1
公开(公告)日:2015-07-02
The subject matter of the invention is a method for measuring the luminescence of a long-life fluorescent compound present in a measuring medium, said medium containing a biological sample, characterized in that it comprises the following steps:
a) introduction of a long-life fluorescent compound into the measuring medium,
b) introduction, into the measuring medium, of a fluorescent marking agent, the absorption spectrum of which allows the excitation thereof at the same wavelength as that used to excite the long-life fluorescent compound, wherein said emission spectrum allows the measurement of the luminescence thereof at the same wavelength as that used to measure the luminescence of the long-life fluorescent compound,
c) excitation of the measuring medium with a wavelength corresponding to an absorption peak of the long-life fluorescent compound,
d) measurement of the luminescence emitted by the measuring medium immediately after excitation of said medium, mainly corresponding to the luminescence of the marking agent, and for a period of 5 ns to 45 μs, at a wavelength correspondant to an emission peak of the long-life fluorescent compound,
e) time-resolved measurement of the luminescence emitted by the measuring medium at the same wavelength as that used in step d), after a delay of 20 to 200 μs following the excitation of the measuring medium and for a period of 200 to 1000 μs, this luminescence mainly corresponding to that of the long-life fluorescent compound,
f) calculation of a normalized luminescence signal corresponding to the ratio: (signal obtained in step e)/(signal obtained in step d).
THERANOSTIC METHOD BASED ON THE DETECTION OF HER2-HER2 DIMERS
申请人:CISBIO BIOASSAYS
公开号:US20150198602A1
公开(公告)日:2015-07-16
The present invention relates to an ex vivo method for determining the susceptibility of a patient suffering from cancer to respond to a therapeutic treatment based on the administration of an antibody specific for the HER2 protein, this method comprising the quantification of HER2-HER2 dimers in a tissue sample from said patient using the FRET technique.
The invention also relates to a kit of reagents for implementing this method.