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| Content Provider | frontiers |
|---|---|
| Author | Vázquez-Jiménez, Aarón Avila-Ponce De León, Ugo Enrique Matadamas-Guzman, Meztli Muciño-Olmos, Erick Andrés Martínez-López, Yoscelina E. Escobedo-Tapia, Thelma Resendis-Antonio, Osbaldo |
| Abstract | COVID-19 is a disease with a spectrum of clinical responses ranging from moderate to critical. To study and control its effects, a large number of researchers are focused on two substantial aims. On the one hand, the discovery of diverse biomarkers to classify and potentially anticipate the disease severity of patients. These biomarkers could serve as a medical criterion to prioritize attention to those patients with higher prone to severe responses. On the other hand, understanding how the immune system orchestrates its responses in this spectrum of disease severities is a fundamental issue required to design new and optimized therapeutic strategies. In this work, using single-cell RNAseq of bronchoalveolar lavage fluid of nine patients with COVID-19 and three healthy controls, we contribute to both aspects. First, we presented computational supervised machine-learning models with high accuracy in classifying the disease severity (moderate and severe) in patients with COVID-19 starting from single-cell data from bronchoalveolar lavage fluid. Second, we identified regulatory mechanisms from the heterogeneous cell populations in the lungs microenvironment that correlated with different clinical responses. Given the results, patients with moderate COVID-19 symptoms showed an activation/inactivation profile for their analyzed cells leading to a sequential and innocuous immune response. In comparison, severe patients might be promoting cytotoxic and pro-inflammatory responses in a systemic fashion involving epithelial and immune cells without the possibility to develop viral clearance and immune memory. Consequently, we present an in-depth landscape analysis of how transcriptional factors and pathways from these heterogeneous populations can regulate their expression to promote or restrain an effective immune response directly linked to the patients prognosis. |
| ISSN | 16643224 |
| DOI | 10.3389/fimmu.2021.705646 |
| Volume Number | 12 |
| Journal | Frontiers in Immunology |
| Language | English |
| Publisher Date | 2021-09-16 |
| Access Restriction | Open |
| Subject Keyword | COVID-19 Machine learning Immune landscape Cell heterogeneity Immune System Single-Cell Analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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