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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Autoimmune Disorders01:29

Autoimmune Disorders

Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune system...

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Related Experiment Video

Updated: Jul 9, 2026

Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture
10:31

Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture

Published on: April 8, 2016

Immunopathogenesis of psoriasis.

Brian J Nickoloff1, Jian-Zhong Qin, Frank O Nestle

  • 1Department of Pathology, Loyola University Medical Center, Maywood, IL 60153, USA. bnickol@lumc.edu

Clinical Reviews in Allergy & Immunology
|December 21, 2007
PubMed
Summary

Psoriasis research advances understanding of its immunological and inflammatory basis. Further investigation is needed into cellular roles and connections to other health conditions.

Area of Science:

  • Dermatology
  • Immunology
  • Inflammation Research

Background:

  • Psoriasis remains a significant focus in global dermatological and clinical research.
  • Understanding its immunopathogenesis is crucial for developing effective treatments.

Purpose of the Study:

  • To present a comprehensive review of recent advancements in psoriasis research.
  • To explore the immunological and inflammatory underpinnings of psoriasis.

Main Methods:

  • Literature review synthesizing over 150 references, with a focus on recent publications (last 5 years).
  • Exploration of ten key sections detailing psoriasis's immunological and inflammatory basis.

Main Results:

  • Significant progress has been made in understanding psoriasis immunopathogenesis.

Related Experiment Videos

Last Updated: Jul 9, 2026

Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture
10:31

Lymphocyte Isolation from Human Skin for Phenotypic Analysis and Ex Vivo Cell Culture

Published on: April 8, 2016

  • Key questions persist regarding the roles of epidermal and dermal cells.
  • Conclusions:

    • Continued research is essential to fully elucidate the complex mechanisms of psoriasis.
    • Future studies will likely focus on animal models, biologic agents, and comorbidities.