التفاصيل البيبلوغرافية
| العنوان: |
Microanatomic Distribution of Myeloid Heme Oxygenase-1 Protects against Free Radical-Mediated Immunopathology in Human Tuberculosis |
| المؤلفون: |
Krishna C. Chinta, Md. Aejazur Rahman, Vikram Saini, Joel N. Glasgow, Vineel P. Reddy, Jeremie M. Lever, Shepherd Nhamoyebonde, Alasdair Leslie, Ryan M. Wells, Amie Traylor, Rajhmun Madansein, Gene P. Siegal, Veena B. Antony, Jessy Deshane, Gordon Wells, Kievershen Nargan, James F. George, Pratistadevi K. Ramdial, Anupam Agarwal, Adrie J.C. Steyn |
| المصدر: |
Cell Reports, Vol 25, Iss 7, Pp 1938-1952.e5 (2018) |
| بيانات النشر: |
Elsevier, 2018. |
| سنة النشر: |
2018 |
| المجموعة: |
LCC:Biology (General) |
| مصطلحات موضوعية: |
Biology (General), QH301-705.5 |
| الوصف: |
Summary: Heme oxygenase-1 (HO-1) is a cytoprotective enzyme that controls inflammatory responses and redox homeostasis; however, its role during pulmonary tuberculosis (TB) remains unclear. Using freshly resected human TB lung tissue, we examined the role of HO-1 within the cellular and pathological spectrum of TB. Flow cytometry and histopathological analysis of human TB lung tissues showed that HO-1 is expressed primarily in myeloid cells and that HO-1 levels in these cells were directly proportional to cytoprotection. HO-1 mitigates TB pathophysiology by diminishing myeloid cell-mediated oxidative damage caused by reactive oxygen and/or nitrogen intermediates, which control granulocytic karyorrhexis to generate a zonal HO-1 response. Using whole-body or myeloid-specific HO-1-deficient mice, we demonstrate that HO-1 is required to control myeloid cell infiltration and inflammation to protect against TB progression. Overall, this study reveals that zonation of HO-1 in myeloid cells modulates free-radical-mediated stress, which regulates human TB immunopathology. : Heme oxygenase-1 (HO-1) is a cytoprotective enzyme that controls inflammation and redox homeostasis; however, its role in tuberculosis (TB) is unclear. Using freshly resected human lung tissue and HO-1-deficient mice, Chinta et al. demonstrate that HO-1 in myeloid cells is important for controlling inflammatory and free-radical-mediated tissue damage in TB. Keywords: mycobacterium tuberculosis, heme oxygenase-1, human pulmonary tuberculosis, histopathological spectrum, human TB pathology, myeloid cell inflammation, macrophage, neutrophil, karyorrhexis, free radical |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2211-1247 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2211124718316772; https://doaj.org/toc/2211-1247 |
| DOI: |
10.1016/j.celrep.2018.10.073 |
| URL الوصول: |
https://doaj.org/article/4c7da74431894b99aa2b05cd2ea1ba01 |
| رقم الانضمام: |
edsdoj.4c7da74431894b99aa2b05cd2ea1ba01 |
| قاعدة البيانات: |
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