Abstract:
A method for detecting the presence or absence of a first analyte and of a second analyte in a sample comprises a subtractive immunoassay including in the following order the steps of: a) conjugating a first detector antibody to the first analyte in order to tag the first analyte with a first detector tag; b) conjugating a first capture antibody to the first analyte in order to capture the first analyte and to completely deplete the first analyte from the sample; c) conjugating a second detector antibody to the second analyte in the depleted sample in order to tag the second analyte with a second detector tag; d) conjugating a second capture antibody to the second analyte in order to capture the second analyte from the sample; e) detecting the presence or absence of the first and second detector tag at the site of the first and second capture antibody, respectively, and thereby detecting the presence or absence of the first analyte and of the second analyte in the sample.
Abstract:
Provided herein are compositions and methods for detecting and/or diagnosing a Staphylococcus aureus (S. aureus) infection in a subject. It is a surprising finding of the present invention that an S. aureus infection may be detected by using one or more antigens selected from the group consisting of an IsdA antigen, IsdB antigen, CHIPS antigen, and a SCIN antigen. In some embodiments, these S. aureus antigens are used to detect antibodies secreted by the plasmablasts from the subject.
Abstract:
This invention relates to a dermatological composition comprising, as an active ingredient, at least one Staphylococcus haemolyticus inhibitor and the use thereof in the prevention and/or treatment of atopic dermatitis. This invention also relates to an in vitro method for prognosis and/or diagnosis of atopic dermatitis and a method for selecting a Staphylococcus haemolyticus inhibitor.
Abstract:
The invention refers to a cross-neutralizing antibody comprising at least one polyspecific binding site that binds to alpha-toxin (Hla) and at least one of the bi- component toxins of Staphylococcus aureus , which antibody comprises at least three complementarity determining regions (CDR1 to CDR3) of the antibody heavy chain variable region (VH), wherein A) the antibody comprises a) a CDR1 comprising or consisting of the amino acid sequence YSISSGMGWG (SEQ ID 1); and b) a CDR2 comprising or consisting of the amino acid sequence SIDQRGSTYYNPSLKS (SEQ ID 2); and c) a CDR3 comprising or consisting of the amino acid sequence ARDAGHGVDMDV (SEQ ID 3); or B) the antibody comprises at least one functionally active CDR variant of a) the parent CDR1 consisting of the amino acid sequence of SEQ ID 1; or b) the parent CDR2 consisting of the amino acid sequence of SEQ ID 2; or c) the parent CDR3 consisting of the amino acid sequence of SEQ ID 3; wherein the functionally active CDR variant comprises at least one point mutation in the parent CDR sequence, and comprises or consists of the amino acid sequence that has at least 60% sequence identity with the parent CDR sequence. It further refers to such cross-neutralizing antibody which is a functionally active variant antibody of a parent antibody that comprises a polyspecific binding site of the VH amino acid sequence of SEQ ID 20, and the VL amino acid sequence of SEQ ID 39, which functionally active variant antibody comprises at least one point mutation in any of the framework regions (FR) or constant domains, or complementarity determining regions (CDR1 to CDR6) in any of SEQ ID 20 or SEQ 39, and has an affinity to bind each of the toxins with a Kd of less than 10 -8 M, preferably less than 10 -9 M.
Abstract translation:本发明涉及包含至少一个与α-毒素(Hla)结合的多特异性结合位点和至少一种金黄色葡萄球菌的双组分毒素的交叉中和抗体,该抗体包含至少三个互补决定区(CDR1 抗体重链可变区(VH)的CDR3),其中A)抗体包含a)包含氨基酸序列YSISSGMGWG(SEQ ID 1)或由其组成的CDR1; 和b)包含或由氨基酸序列SIDQRGSTYYNPSLKS(SEQ ID 2)组成的CDR2; 和c)包含或由氨基酸序列ARDAGHGVDMDV(SEQ ID 3)组成的CDR3; 或B)抗体包含a)由SEQ ID No.1的氨基酸序列组成的亲本CDR1的至少一种功能活性CDR变体; 或b)由SEQ ID No.2的氨基酸序列组成的亲本CDR2; 或c)由SEQ ID 3的氨基酸序列组成的亲本CDR3; 其中所述功能活性CDR变体在所述亲本CDR序列中包含至少一个点突变,并且包含与所述亲本CDR序列具有至少60%序列同一性的氨基酸序列或由所述氨基酸序列组成。 它还涉及这样的交叉中和抗体,其是包含SEQ ID 20的VH氨基酸序列的多特异性结合位点和SEQ ID 39的VL氨基酸序列的亲本抗体的功能活性变体抗体,其功能上是 活性变体抗体包含SEQ ID NO:20或SEQ ID NO:39中任一个的框架区(FR)或恒定结构域或互补决定区(CDR1至CDR6)中的任一者的至少一个点突变,并具有与 Kd小于10-8M,优选小于10-9M的毒素。
Abstract:
This invention relates to a dermatological composition comprising, as an active ingredient, at least one Staphylococcus haemolyticus inhibitor and the use thereof in the prevention and/or treatment of atopic dermatitis. This invention also relates to an in vitro method for prognosis and/or diagnosis of atopic dermatitis and a method for selecting a Staphylococcus haemolyticus inhibitor.
Abstract:
ABSTRACT OF DISCLOSURE The present disclosure relates to compositions, methods, and kits for the rapid detection, separation and/or isolation of microorganisms. Specifically, the disclosure relates to compositions, methods, and kits for using vancomycin - PVA backbone complexes to capture and/or concentrate microorganisms in an aqueous sample, such as gram positive and/or gram negative bacteria in solution.
Abstract:
Antibodies and antigen binding fragments thereof directed against Staphylococcus aureus (S. aureus) surface determinant antigens and secreted toxins are disclosed. Methods of detecting, diagnosing and treating S. aureus using the antibodies and antigen binding fragments thereof are also provided.
Abstract:
Articles, methods of making, and uses for modifying surfaces for simultaneously providing repellency and selective binding of desired moieties are disclosed. The repellant surfaces comprise a substrate and a lubricating layer immobilized over the substrate surface having a lubricating liquid having an affinity with the substrate. The substrate and the lubricating liquid are attracted to each other together by non-covalent attractive forces. The repellent surface further includes a binding group extending over the surface of the lubricating layer and the binding group has an affinity with a target moiety. The lubricating layer and the substrate form a slippery or repellent surface configured and arranged for contact with a material that is immiscible with the lubricating liquid and the immiscible material contains the target moiety.