Related Experiment Video

Updated: Jul 5, 2026

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
11:32

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria

Published on: February 23, 2014

Advances in the biology, pathogenesis and identification of Pneumocystis pneumonia

Bryan J Krajicek1, Andrew H Limper, Charles F Thomas

  • 1Thoracic Diseases Research Unit, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.

Current Opinion in Pulmonary Medicine
|April 23, 2008
PubMed
Abstract

Insights

Pneumocystis pneumonia can colonize individuals with healthy immune systems and develop treatment resistance. New molecular diagnostics and genomic targets offer improved surveillance and therapeutic strategies for this opportunistic infection.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Immunology

Background:

  • Pneumocystis pneumonia (PCP) is a significant opportunistic infection in immunocompromised individuals, particularly those with AIDS.
  • Studying Pneumocystis is challenging due to difficulties in in-vitro cultivation.
  • Recent advancements in molecular techniques and genomics are enhancing our understanding of PCP.

Purpose of the Study:

  • To review recent scientific advances in understanding Pneumocystis pneumonia.
  • To highlight new molecular and genomic approaches for studying this fungal pathogen.
  • To discuss implications for diagnosis and treatment.

Main Methods:

  • Genomic analysis of Pneumocystis.
  • Advanced molecular techniques, including PCR.
  • Exploration of non-invasive diagnostic markers like serum beta-glucan.

Main Results:

  • Pneumocystis can colonize mammals with normal immune systems, not just those with impaired immunity.
  • Acquired genetic mutations in Pneumocystis can lead to therapeutic resistance.
  • Advanced PCR techniques improve diagnostic yield from respiratory samples.
  • Serum beta-glucan shows promise as a non-invasive marker for PCP infection and treatment response.

Conclusions:

  • Scientific breakthroughs offer potential improvements in diagnosing and monitoring Pneumocystis pneumonia.
  • Further research is needed to optimize laboratory tests for PCP.
  • Development of novel therapeutics targeting unique Pneumocystis genomic features is warranted.

More Related Videos

A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness12:21

A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness

Published on: September 28, 2022

Related Concept Videos

Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

The pathophysiology of pneumonia involves the following steps:
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...