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Generation of Lymphocytic Microparticles and Detection of their Proapoptotic Effect on Airway Epithelial Cells
Published on: February 20, 2015
[Expression of the Bax proapoptotic factor in asthmatic patients]
Constantin Cristian Grigoraş1, Adriana Grigoraş, Traian Mihăescu
1Spitalul Clinic de Pneumologie Iaşi, Ambulatoriul de specialitate. c_grigoras@hotmail.com
Abstract:
The alteration in the expression of the factors involved in the apoptotic mechanism of the respiratory cell epithelium of asthma patients remains an unsolved issue. The mitochondria holds a very important place in the apoptotic chain, making therefore the study of the proteins belonging to the Bcl-2 family that "controls" permeability of mitochondria's membrane extremely interesting, both for asthma as for other diseases. Our main concern in this study was to reveal the changes in expression of Bax factor at the level of the respiratory epithelium in asthma patients. We examined a number of 21 patients with different degrees of asthma. The tissue samples were accordingly processed for immunotyping with anti-Bax antibodies. Following microscopic examination we have found, even in mild cases of asthma, a decreased expression of Bax factor at the epithelial level, compared with the witness. The discovery of all these factors involved in cell apoptosis as well as their alteration in Asthma will be the future of therapeutic approach in these patients.
Insights
Asthma patients show decreased expression of the Bax factor in respiratory cells, even in mild cases. This finding in apoptosis regulation may offer new therapeutic strategies for asthma.
Area of Science:
- Cell Biology
- Immunology
- Respiratory Medicine
Context:
- Apoptosis, or programmed cell death, is crucial for maintaining tissue homeostasis.
- Mitochondria play a central role in the intrinsic apoptotic pathway.
- The Bcl-2 family of proteins regulates mitochondrial outer membrane permeability during apoptosis.
Purpose:
- To investigate alterations in the expression of the Bax factor, a key pro-apoptotic protein, in the respiratory epithelium of asthma patients.
- To determine if Bax expression changes are associated with asthma severity.
Summary:
- This study examined Bax factor expression in the respiratory epithelium of 21 asthma patients using immunotyping.
- Results revealed a decreased expression of Bax in epithelial cells of asthma patients, including those with mild asthma, compared to controls.
- The findings highlight the role of altered apoptosis in asthma pathogenesis.
Impact:
- Identifies a potential biomarker for asthma.
- Suggests that modulating apoptosis pathways, specifically involving Bax, could be a future therapeutic target for asthma.
- Contributes to understanding the molecular mechanisms underlying respiratory diseases.
Related Concept Videos
Asthma I: Introduction
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma-II: Pathophysiology and Classification
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Asthma III: Clinical Manifestations
The Intrinsic Apoptotic Pathway
Asthma-I: Introduction
