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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency disorders...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Inhibitors of Virion Maturation and Assembly01:19

Inhibitors of Virion Maturation and Assembly

As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Sexually Transmitted Infections01:26

Sexually Transmitted Infections

Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...

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Related Experiment Video

Updated: Jun 24, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
14:28

Peptide-based Identification of Functional Motifs and their Binding Partners

Published on: June 30, 2013

Immunopathogenesis of AIDS.

Alexandra M Ortiz1, Guido Silvestri

  • 1Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, 705 Stellar-Chance Laboratories, 422 Curie Boulevard, Philadelphia, PA 19104, USA.

Current Infectious Disease Reports
|April 16, 2009
PubMed
Summary
This summary is machine-generated.

Despite progress in treating Acquired Immunodeficiency Syndrome (AIDS), a cure remains elusive. Further understanding of Human Immunodeficiency Virus (HIV) and host immune interactions is crucial for developing effective therapies and vaccines.

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Isolation of Exosomes from the Plasma of HIV-1 Positive Individuals
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Isolation of Exosomes from the Plasma of HIV-1 Positive Individuals

Published on: January 5, 2016

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Last Updated: Jun 24, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
14:28

Peptide-based Identification of Functional Motifs and their Binding Partners

Published on: June 30, 2013

Isolation of Exosomes from the Plasma of HIV-1 Positive Individuals
06:46

Isolation of Exosomes from the Plasma of HIV-1 Positive Individuals

Published on: January 5, 2016

Area of Science:

  • Immunology
  • Virology
  • Pathogenesis

Background:

  • Significant advancements in reducing Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS) morbidity and mortality have been achieved.
  • A definitive cure or preventative vaccine for HIV infection is still lacking.
  • Incomplete understanding of HIV pathogenesis, particularly virus-host immune interactions, hinders therapeutic and vaccine development.

Purpose of the Study:

  • To review recent advances in HIV immunopathogenesis research.
  • To explore key areas including virus-host cell interactions, immune responses to HIV, chronic immune activation, and natural simian immunodeficiency virus (SIV) infections.
  • To discuss the implications of these findings for future HIV/AIDS therapy and vaccine strategies.

Main Methods:

  • Review of recent scientific literature on HIV immunopathogenesis.
  • Analysis of studies focusing on virus-host interactions.
  • Examination of research on immune responses, chronic immune activation, and SIV models.

Main Results:

  • Recent research has shed light on complex virus-host cell interactions in HIV infection.
  • Understanding of immune responses to HIV and the role of chronic immune activation has advanced.
  • Natural simian immunodeficiency virus (SIV) infections provide valuable insights into lentiviral pathogenesis.

Conclusions:

  • Continued research into HIV immunopathogenesis is essential for overcoming current therapeutic and vaccine limitations.
  • A deeper understanding of virus-host dynamics may unlock new strategies for HIV/AIDS treatment.
  • Further investigation into immune activation and SIV models holds promise for developing effective HIV interventions.