[Pulmonary histological and ultrastructural changes in HIV infection concurrent with tuberculosis]
Yu R Zyuzya1, T G Barkhina2, Yu G Parkhomenko3
1Moscow Scientific-and-Practical Center for Tuberculosis Control, Moscow Healthcare Department; Infectious Diseases Hospital Two, Moscow Healthcare Department.
Arkhiv Patologii
|April 15, 2015
Summary
This study reveals cellular and subcellular lung changes in HIV-associated tuberculosis. Plasma cells take over functions of damaged macrophages, aiding in combating tuberculosis while type I alveolocytes are compromised.
Area of Science:
- Pulmonary pathology
- Immunopathology
- Cellular biology
Context:
- HIV-associated tuberculosis presents a dual infection challenge.
- Understanding cellular and subcellular lung alterations is crucial for this comorbidity.
Purpose:
- To analyze cellular and subcellular disorders in the lung during HIV-associated tuberculosis.
- To investigate the morphological and ultrastructural changes in lung tissues.
Summary:
- Morphological examination of autopsy specimens revealed significant ultrastructural changes in type I alveolocytes and endothelial cells.
- Impaired blood-air barrier integrity leads to cellular dysfunction, with plasma cells exhibiting phagocytic activity due to macrophage compromise.
- Necrosis and apoptosis were observed in granulocytes, indicating severe cellular damage and an exudative-inflammatory response.
Impact:
- Highlights the complex cellular interplay and damage patterns in HIV-associated tuberculosis.
- Provides insights into the pathogenetic mechanisms of lung injury in this dual infection.
- Informs potential therapeutic strategies targeting cellular and subcellular dysfunctions.
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