Leland Stanford Junior University

Cz Biohub Sf, Llc.

Chan Zuckerberg Biohub, Inc.

Kari C Nadeau

Stephen R Quake

Derek Croote

David N Cornfield

Spyros Darmanis

Leonore A Herzenberg

Rabindra M Tirouvanziam

Yael Gernez

Fengjiao Lyu

Sindy K Y Tang

Bryan J Bunning

Seth Cordts

Nicolas Castano

Devices, methods, and kits are provided for allergy testing based on basophil activation in a blood sample. Susceptibility of an individual to an allergic reaction to an allergen is detected by collecting a blood sample from the individual and assaying for activation of basophils in response to stimulation with an allergen. In particular, a microfluidic device is provided for automating the assay for detecting basophil activation as an indication of the susceptibility of an individual to an allergic reaction as well as kits containing such a device and diagnostic methods for using such a device for allergy testing. Additionally, such a microfluidic device can be adapted for multiplexed detection of allergic responses to multiple allergens by performing assays in parallel to detect the basophil responses to each allergen.

Microfluidic device and diagnostic methods for allergy testing based on detection of basophil activation

In one aspect, methods of generating human monoclonal antibodies that specifically binds to an allergen are provided. In some embodiments, the monoclonal antibodies are generated from sequences identified from isolated single B cells from a human subject who is allergic to the allergen.

Methods of isolating allergen-specific antibodies from humans and uses thereof

Identifying human B cells expressing anti-allergen antibodies

Mixed allergen compositions of two or more different allergens are provided. In some instances, the mixed allergen compositions include: a nut allergen; an animal allergen; and at least one of: a non-nut plant allergen; a biotic agent; and a vitamin. Also provided are methods of administering the mixed allergen compositions to a subject. The mixed allergen compositions find use in a variety of applications, including health maintenance, immune balance, gut balance, immune support, health improvement and therapeutic applications.

Mixed allergen compositions and methods for using the same

Allergen-specific antibodies

Mixed allergen compositions of one, two or more different allergens are provided. In some instances, the mixed allergen compositions include: a nut allergen; an animal allergen; and at least one of: a non-nut plant allergen; a biotic agent; and a vitamin. Also provided are methods of administering the mixed allergen compositions to a subject. The mixed allergen compositions find use in a variety of applications, including health maintenance, immune balance, gut balance, immune support, health improvement and therapeutic applications.

Methods for detecting nonactivated basophils in a whole blood sample obtained from a normal healthy subject, methods for determining a subject's susceptibility to an allergic reaction to an allergen, where the subject has no known allergy to the allergen, methods for measuring a response to challenge with a potential allergen in a whole blood sample obtained from a subject with known allergic reactivity to allergens other than the potential allergen; and an in vitro system for reliable detection or quantification of a specific white blood cell population in a whole blood sample are described.

Methods and assays for detecting and quantifying pure subpopulations of white blood cells in immune system disorders

Growing community of inventors

Los Altos Hills, CA, United States of America

Kari C Nadeau