A brief review of antifungal therapy for deep fungal infection

R J Muller1

  • 1Division of Pharmacy Services, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.

Insights

The rise in fungal infections necessitates better systemic antifungal drugs. Recent advancements like liposomal amphotericin B and new itraconazole formulations are influencing treatment choices for deep fungal infections.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Pharmacology

Background:

  • Increasing incidence of serious fungal infections, particularly in neutropenic patients.
  • Growing need for novel and enhanced systemic antifungal therapies.
  • Current treatment selection relies on spectrum of action, pharmacokinetics, toxicity, resistance, and cost.

Purpose of the Study:

  • To review current systemic antifungal agents.
  • To highlight recent advancements in antifungal therapy.
  • To discuss the impact of new formulations on clinical practice.

Main Methods:

  • Review of available systemic antifungal agents.
  • Analysis of criteria for antifungal drug selection by pharmacy and therapeutics committees.
  • Discussion of recent developments in amphotericin B and itraconazole formulations.

Main Results:

  • Established agents include conventional and liposomal amphotericin B, itraconazole, and fluconazole.
  • Recent lipid formulations of amphotericin B and improved itraconazole formulations (oral and IV) are available.
  • There is ongoing debate regarding optimal antifungal therapy.

Conclusions:

  • Newer antifungal formulations are significantly impacting drug selection and treatment strategies.
  • Continued research and development are crucial for addressing the challenge of fungal diseases.
  • Optimizing antifungal therapy requires balancing efficacy, safety, and cost.

Related Concept Videos

Overview of Fungi01:29

Overview of Fungi

Fungi are a diverse group of eukaryotes more closely related to animals than other eukaryotes. Fungal cell walls comprise chitin, a polysaccharide that provides structural strength, and glucans, which contribute to flexibility and integrity. Other polysaccharides, such as mannans and galactosans, may supplement or replace chitin in some fungi. These adaptations, along with their preference for acidic environments and tolerance for high osmotic pressure, enable fungi to thrive in various...
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...
Anthelminthic Agents01:15

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...