Luis Antonio Ochoa-Ramirez; Rosalio Ramos-Payan; German Reynaldo Jimenez-Gastelum; Jose Rodriguez-Millan; Maribel Aguilar-Medina; Juan Jose Rios-Tostado; Alfredo Ayala-Ham; Mercedez Bermudez; Juan Fidel Osuna-Ramos; Vicente Olimon-Andalon; Jesús Salvador Velarde-Félix
Abstract
Background: Coronavirus disease 2019 (COVID-19) is an emergent viral disease in which the host inflammatory response modulates the clinical outcome. Severe outcomes are associated with an exacerbation of inflammation in which chemokines play an important role as the attractants of immune cells to the ...
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Background: Coronavirus disease 2019 (COVID-19) is an emergent viral disease in which the host inflammatory response modulates the clinical outcome. Severe outcomes are associated with an exacerbation of inflammation in which chemokines play an important role as the attractants of immune cells to the tissues.Objective: To evaluate the relationship of the chemokines IL-8, RANTES, MIG, MCP-1, and IP-10 with COVID-19 severity and outcomes in Mexican patients.Methods: We analyzed the serum levels of IL-8, RANTES, MIG, MCP-1 and IP-10 in 148 COVID-19 hospitalized patients classified as mild (n=20), severe (n=61), and critical (n=67), as well as in healthy individuals (n=10), by flow cytometry bead array assay.Results: Chemokine levels were higher in patients than in the healthy individuals, but only MIG, MCP-1, and IP-10 increased according to the disease severity, showing the highest levels in the critical group. MIG, MCP-1, and IP-10 levels were also higher in COVID-19 patients with comorbidities such as renal disease, type 2 diabetes, and hypertension. Moreover, elevated MIG levels seem to be related to organic failure/shock, and an increased risk of death.Conclusions: Our results suggest that the increased levels of MCP-1, IP-10, and especially MIG might be useful in predicting severe COVID-19 outcomes and could be promising therapeutic targets.
German Reynaldo Jiménez-Gastélum; Arely Monserrant Espinoza-Ortega; Rosalío Ramos-Payán; Maribel Aguilar-Medina; Jorge López-Gutiérrez; Carlos Villegas-Mercado; Luis Antonio Ochoa-Ramirez; Horacio Rendón-Aguilar; Juan Fidel Osuna-Ramos; Juan José Ríos-Tostado; Jesús Salvador Velarde-Félix
Abstract
Background: According to the World Health Organization, Mexico presents one of the highest mortality rates due to coronavirus disease 2019 (COVID-19). The "cytokine storm" phenomenon has been proposed as a pathological hallmark of severe COVID-19. Objective: To determine the association of serum cytokine ...
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Background: According to the World Health Organization, Mexico presents one of the highest mortality rates due to coronavirus disease 2019 (COVID-19). The "cytokine storm" phenomenon has been proposed as a pathological hallmark of severe COVID-19. Objective: To determine the association of serum cytokine levels with COVID-19 severity. Methods: We studied the cytokines IL-2, IL-4, IL-6, IL-10, TNF-α, and the IFN-γ serum levels through flow cytometry in 56 COVID-19 patients (24 critical and 32 non-critical) from Northwest Mexico. Results: We observed a significant increase in the IL-6 and the IL-10 levels in the sera of critical patients. These cytokines were also associated with mechanical ventilation necessity and death, IL-6 showing AUC values above 0.7 for both variables; and correlated with Na+, creatinine, and platelet levels. On the other hand, no association was found between IL-2, IL-4, TNF-α, and IFN-γ with tested variables. Conclusion: Our results corroborate previous observations regarding IL-6 and IL-10 involvement in the severity of COVID-19.
