Abstract: The invention is directed to a method for activating CAR cells having at least one chimeric antigen binding receptor in a sample by incubating the sample with at least one substrate provided on its surface with at least one anti-CAR idiotype antibody and/or at least one antigen selected from the group consisting of CD19, CD20, CD22, BCMA, CD33, MSLN, CD123, HER2, GD2, EGFR, PSMA, MUC1, CD318, TSPAN8, CD66c, CEA, CLA, CD276, FolR1, CLEC12A, CLL-1 and CD371, and with at least one costimulatory molecule selected from the group consisting of CD28, CD2, CD6, CD26, CD53 and LFA-1 characterized in that the sample is incubated with the at least substrate in suspension thereby activating the CAR T cells to express markers selected from the group consisting of mRNA, effector molecules or cell surface activation markers.

Abstract: Biotinylation reagent has a structure according to formula (I) With R1=alkyl, hydroxyalkyl or carboxyalkyl residue comprising 1 to 50 carbon atoms R2=alkyl, glycol, amine or peptide reside with 1 to 50 carbon atoms R3=Aryl, heteroaryl, with 3 to 50 carbon atoms R4, R5=Aryl, hetero-aryl, Alkyl with 3 to 50 carbon atoms Use of the agent in cell separation processes.

Abstract: The invention is directed to a conjugate complex for detecting a target moiety in a sample of biological specimens having the general formula (I) An - Bm...Cq-Xo (I) with A: antigen recognizing moiety; B: first binding moiety C second binding moiety X: detection moiety; n, m, q, o integers between 1 and 100, wherein B and C are non-covalently bound to each other characterised in that B comprises a thiamine unit and C is a moiety recognizing thiamine. Futher, the invention is directed to a method detecting a target moiety in a sample of biological specimens with a conjugate complex having the general formula (I).

Abstract: The invention is directed to a method for preparing a detection reagent for CAR expressing cells according to general formula (I) (X-S)m-D ??(I) wherein D is a detection moiety, S a spacer unit and X a polypeptide comprising 10 to 80 amino acids and a N3 group, which binds to the antigen binding domain of a chimeric antigen receptor of a cell and m=4-200, characterized in reacting p detection moieties D with a spacer S according to general formula (II) wherein R is a leaving group, q=1 to 5, and n=4 to 200 and p is 4-250 thereby forming modified detection moiety Sp-D and reacting the modified detection moiety Sp-D with a plurality of polypeptides X to yield (X-S)m-D.

Abstract: The invention is directed to a method for detecting a target moiety in a sample of biological specimens by providing a conjugate with the general formula (I) characterized in contacting the sample of biological specimens with at least one conjugate (I), thereby labeling the target moiety recognized by an antigen recognizing moiety with the conjugate (I); exciting the labelled target moieties with light having a wavelength within the absorbance spectrum of the fluorescent moiety FL; detecting the labelled target moieties by detecting the fluorescence radiation emitted by the fluorescent moiety FL and degrading the fluorescent moiety FL of the labelled target moieties by irradiating the conjugate with light having a wavelength within the absorbance spectrum of fluorescent moiety FL for a time sufficient to deliver enough energy to reduce the fluorescence radiation emitted by the fluorescent moiety FL at least by 75% of the initial fluorescence radiation.

Abstract: The invention is directed to the use or a method of using of a cell expressing a chimeric antigen recognition structure (CAR) bound to an adapter molecule, wherein: i) the CAR structure comprises a) an antigen binding domain specific for the tag of the adapter molecule, b) a transmembrane domain c) an intracellular domain wherein the ii) the adapter molecule comprises a) a tag which is specific for the antigen binding domain of the CAR structure b) a polypeptide comprising an antigen recognizing domain specific for an antigen expressed on the target cell, wherein the polypeptide comprises a heavy chain and a light chain connected by a sulphur atom-linker-sulphur atom bridge and wherein the linker is covalently bound to a single tag for targeting target cells, especially human tumor cells.

Abstract: The invention is directed to a method for detecting a target moiety in a sample of biological specimens by: a) providing at least one conjugate with the general formula (I) Xn—P—Ym, b) contacting the sample of biological specimens with at least one conjugate, thereby labeling the target moiety recognized by the antigen recognizing moiety Y with the conjugate c) exciting the labelled target moieties with light having a wavelength within the absorbance spectrum of fluorescent moiety X d) detecting the labelled target moieties by detecting the fluorescence radiation and e) degrading the fluorescent moiety X of the labelled target moieties by irradiating the conjugate with light having a wavelength within the absorbance spectrum of fluorescent moiety X Use of the method in fluorescence microscopy, flow cytometer, spectrofluorometry, cell separation, pathology or histology.

Abstract: The invention is directed to a method for detecting a target moiety in a sample of biological specimens by: a) providing at least one conjugate with the general formula (I) Xn—P—Ym, b) contacting the sample of biological specimens with at least one conjugate, thereby labeling the target moiety recognized by the antigen recognizing moiety Y with the conjugate c) exciting the labelled target moieties with light having a wavelength within the absorbance spectrum of fluorescent moiety X d) detecting the labelled target moieties by detecting the fluorescence radiation and e) degrading the fluorescent moiety X of the labelled target moieties by irradiating the conjugate with light having a wavelength within the absorbance spectrum of fluorescent moiety X Use of the method in fluorescence microscopy, flow cytometer, spectrofluorometry, cell separation, pathology or histology