Treatment of fungal infection in AIDS

S Hood1, D W Denning

  • 1Department of Infectious Diseases & Tropical Medicine (Monsall Unit), North Manchester General Hospital, Crumpsall, UK.

Insights

Fungal infections are common in patients with Acquired Immunodeficiency Syndrome (AIDS), ranging from superficial to life-threatening systemic diseases. Treatment challenges include antifungal resistance, especially in advanced AIDS cases.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Immunology

Background:

  • Fungal infections are prevalent in Acquired Immunodeficiency Syndrome (AIDS) patients, manifesting as superficial, mucosal, or systemic diseases.
  • Superficial and mucosal fungal infections are common and can be difficult to treat, with frequent recurrences.
  • In advanced AIDS, Candida isolates often exhibit in vitro resistance to fluconazole and other azoles, complicating therapy.

Purpose of the Study:

  • To review the prophylaxis and treatment of various fungal infections in patients with Acquired Immunodeficiency Syndrome (AIDS).
  • To highlight the challenges in managing fungal infections, including antifungal resistance and treatment failures.

Main Methods:

  • Literature review of fungal infections in Acquired Immunodeficiency Syndrome (AIDS) patients.
  • Discussion of prophylaxis and treatment strategies for common fungal infections, excluding Pneumocystis carinii pneumonia (PCP).

Main Results:

  • Superficial and mucosal fungal infections are more frequent and harder to eradicate in AIDS patients.
  • Systemic fungal infections, though less common, are life-threatening and include Pneumocystis carinii pneumonia (PCP), histoplasmosis, coccidioidomycosis, Penicillium marneffei, cryptococcal meningitis, and invasive aspergillosis.
  • Antifungal resistance, particularly to azoles, is a significant issue in advanced AIDS cases.

Conclusions:

  • Effective prophylaxis and treatment are crucial for managing fungal infections in AIDS patients.
  • Antifungal resistance necessitates careful selection of therapeutic agents and consideration of alternative treatment strategies.
  • Further research into novel antifungal therapies and resistance mechanisms is warranted for improved patient outcomes.

Related Concept Videos

Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Fungal Phylum Microsporidia01:28

Fungal Phylum Microsporidia

Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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,...
Candidiasis01:20

Candidiasis

Candidiasis is a fungal infection caused by opportunistic species of Candida. It can affect various anatomical sites, including the skin, oral cavity, nails, and genitourinary tract. Among its forms, vaginal candidiasis is the most common type of mucosal infection. It typically results from the overgrowth of Candida albicans in the vaginal mucosa. Under normal conditions, C. albicans exists as a commensal organism within the vaginal microbiota, regulated by the dominance of lactobacilli, which...
Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...