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Related Concept Videos

Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Antigens Involved in Adaptive Immunity01:26

Antigens Involved in Adaptive Immunity

An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
Methods of Classification and Identification01:28

Methods of Classification and Identification

Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
Blood Types02:20

Blood Types

Human blood is classified into different types based on the presence of antigens on the red blood cell's surface and antibodies in the plasma. Proper identification of blood type is essential for successful blood transfusion. The International Society of Blood Transfusion has identified 38 human blood types based on the surface antigens on the red blood cells. The most common types are ABO, Rh, and MNS blood types.
ABO blood group
ABO antigens are glycoproteins encoded by genes present on...
Blood Typing01:10

Blood Typing

Understanding an individual's blood group is a critical component of transfusion medicine. It ensures compatibility in blood transfusions, organ transplants, and even during pregnancy. Determining these blood groups involves the ABO and Rh blood typing systems, utilizing specific antigens and corresponding anti-sera to identify an individual's blood type.
Antigens are protein molecules that reside on the surface of red blood cells (RBCs). The ABO and Rh blood typing systems target antigens A,...
Antigen Processing Pathways01:31

Antigen Processing Pathways

MHC molecules are key players in the immune response, enabling T cells to recognize and respond to specific antigens. They are present on the surface of all nucleated cells in the body and are instrumental in presenting antigens to T cells and activating them. T cells recognize the MHC-antigen complex and initiate an immune response. MHC class I and MHC class II are two main types of MHC molecules, each associated with a distinct antigen processing pathway.
MHC Class I: Presenting Endogenous...

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Stability and Structure of Bat Major Histocompatibility Complex Class I with Heterologous β2-Microglobulin
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Molecular typing methods for minor histocompatibility antigens.

Eric Spierings1, Els Goulmy

  • 1Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands.

Methods in Molecular Medicine
|August 2, 2007
PubMed
Summary

Minor histocompatibility antigens significantly impact stem cell transplant success. This review covers current genomic and RNA-based methods for typing these antigens, crucial for immunotherapy.

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Area of Science:

  • Immunology
  • Transplantation Science

Background:

  • Minor histocompatibility (H) antigens play a critical role in the success of allogeneic stem cell transplantation, even between human leukocyte antigen (HLA)-matched donors and recipients.
  • The identification of novel minor H antigens is accelerating, increasing their relevance in clinical settings.

Purpose of the Study:

  • To provide a comprehensive overview of existing methodologies for minor H antigen typing.
  • To highlight the importance of minor H antigen typing for optimizing stem cell transplantation outcomes and immunotherapy strategies.

Main Methods:

  • The study reviews and summarizes current techniques for minor H antigen typing.
  • Methods discussed include both genomic and RNA-level approaches.

Main Results:

  • A growing number of minor H antigens have been molecularly identified.
  • Clinical interest in utilizing minor H antigens for immunotherapy is increasing.

Conclusions:

  • Accurate minor H antigen typing of both stem cell transplant recipients and donors is becoming increasingly important.
  • The summarized methodologies offer a foundation for current and future clinical applications in transplantation and immunotherapy.