[Histocompatibility antigens and the solitary keratoacanthoma]

Voprosy Onkologii
|January 1, 1989
PubMed

Insights

This study found a higher occurrence of HLA-B16 and HLA-B18 antigens in solitary keratoacanthoma patients. The presence of HLA-A2 was associated with a worse disease outcome.

Area of Science:

  • Immunogenetics
  • Dermatology
  • Oncology

Background:

  • Keratoacanthoma is a common skin tumor.
  • The etiology of keratoacanthoma is not fully understood.
  • Human Leukocyte Antigen (HLA) associations with skin conditions are being investigated.

Purpose of the Study:

  • To investigate the association between specific Human Leukocyte Antigen (HLA) antigens and solitary keratoacanthoma.
  • To determine if certain HLA types influence the clinical course of keratoacanthoma.

Main Methods:

  • A standard microlymphocytic cytotoxic test was employed.
  • The study included 43 cases of solitary keratoacanthoma.
  • HLA antigen typing was performed on all participants.

Main Results:

  • An increased incidence of HLA-B16 and HLA-B18 antigens was observed in patients with solitary keratoacanthoma.
  • The presence of the HLA-A2 antigen was found to be associated with an adverse influence on the disease course.
  • Statistical analysis confirmed these associations.

Conclusions:

  • Specific HLA antigens, namely HLA-B16 and HLA-B18, are more prevalent in individuals with solitary keratoacanthoma.
  • HLA-A2 may serve as a predictive marker for a less favorable prognosis in keratoacanthoma patients.
  • Further research into HLA's role in keratoacanthoma pathogenesis is warranted.

Related Concept Videos

Antigen Presenting Cells01:22

Antigen Presenting Cells

The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
3.1K
Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
1.4K
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...
2.1K
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...
1.3K
Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
21.0K
The Stanford Prison Experiment03:20

The Stanford Prison Experiment

The famous and controversial Stanford Prison Experiment, conducted by social psychologist Philip Zimbardo and his colleagues at Stanford University, demonstrated the power of social roles, social norms, and scripts.
24.6K