Allergen Cross-reactivity
Allergen Cross-reactivity - Related Videos
00:42
Cross-reactivity
0 Views •
2025
Overview The ability of a single antibody to recognize multiple structurally similar epitopes is an important immune defense strategy that enables the host to efficiently defend against many potentially threatening pathogens. However, cross-reactivity also elicits allergy symptoms against related allergens. It is increasingly important to understand the principles of cross-reactivity, as antibodies are actively being developed as therapeutic modalities for diverse diseases, including cancer.
10:44
Snap Chip for Cross-reactivity-free and Spotter-free Multiplexed Sandwich Immunoassays
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Cited by 3 •
2017
We demonstrate a snap chip technology for performing cross-reactivity-free multiplexed sandwich immunoassays by simply snapping two slides. A snap apparatus is used for reliably transferring reagents from microarray-to-microarray. The snap chip can be used for any biochemical reactions requiring colocalization of different reagents without cross-contamination.
06:34
A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
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Cited by 4 •
2017
This work describes a protocol that uses a component-resolved approach to study sensitization to grass pollen allergens in a cohort of patients from southern China with allergic rhinitis and/or asthma.
04:36
A Snap Chip Technology for a Cross-Reactivity-Free Multiplexed Sandwich Immunoassay
0 Views •
2025
The video showcases the implementation of snap chip technology for cross-reactivity-free multiplexed sandwich immunoassays. The simple action of snapping two microarray slides, each containing different reagents, ensures reagent transfer without cross-contamination and helps to detect multiple proteins using sandwich immunoassay.
03:31
A Microfluidic Cartridge-Based Detection System for Allergen-Specific Immunoglobulin E
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2025
This video demonstrates a protocol for detecting serum-specific immunoglobulin E using a microfluidic cartridge-based chemiluminescence system. Serum IgEs interact with distinct allergens immobilized in the reaction zone of the cartridge, which are subsequently detected with peroxidase-conjugated anti-IgE antibodies and a chemiluminescent substrate, allowing simultaneous detection of multiple allergen-specific IgEs.
FAQs
Recognition depends on epitopes, which are molecular regions where antibodies bind. When different substances contain shared or structurally similar epitopes, an IgE antibody formed against one allergen may also bind to another. This molecular overlap provides the biological basis for linked sensitivities and helps researchers examine relationships among allergen sources.
These sources may contain proteins with similar molecular features, even when the substances themselves come from different biological or environmental categories. IgE recognition of shared or structurally similar epitopes can therefore connect apparently separate exposures. Studying these links broadens allergy research beyond a single source and clarifies patterns of sensitivity.
The presence of IgE directed toward one allergen does not by itself explain every pattern of sensitivity. Researchers investigate whether related sources contain recognizable shared or structurally similar epitopes and whether those relationships correspond with responses across sources. This approach helps explore why some sensitized individuals show broader reactions than others.
Recognizing relationships between allergen sources gives clinical allergy research additional context when interpreting a person's sensitivity pattern. Instead of considering each source in isolation, investigators can examine whether shared or structurally similar epitopes may connect the findings. This information supports more informed diagnostic evaluation of linked reactions involving foods, pollens, latex, or other environmental allergens.
Cross-reactivity findings can guide counseling by identifying related sources that may deserve attention alongside a known allergen. For food-related sensitivities, this can inform dietary discussions; for latex or environmental allergens, it can support exposure counseling. The value lies in connecting molecular relationships with practical decisions about possible sources of concern.
Researchers use this concept to investigate how protein similarity relates to immune recognition across different sources. The work can include examining connections among foods, pollens, latex, and other environmental allergens, then considering how those connections affect diagnosis and counseling. It also provides a framework for studying why sensitivity may extend beyond the initially recognized allergen.