2021
DOI: 10.3390/v13122521
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sTREM-1 Predicts Disease Severity and Mortality in COVID-19 Patients: Involvement of Peripheral Blood Leukocytes and MMP-8 Activity

Abstract: Uncontrolled inflammatory responses play a critical role in coronavirus disease (COVID-19). In this context, because the triggering-receptor expressed on myeloid cells-1 (TREM-1) is considered an intrinsic amplifier of inflammatory signals, this study investigated the role of soluble TREM-1 (sTREM-1) as a biomarker of the severity and mortality of COVID-19. Based on their clinical scores, we enrolled COVID-19 positive patients (n = 237) classified into mild, moderate, severe, and critical groups. Clinical data… Show more

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Cited by 36 publications
(41 citation statements)
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“…Corroborating this hypothesis, previous data from our group has shown an association between SNPs in TLR3 and TNFα involved in the decrease of antiviral immune response, with CZS occurrence and severity 19 . In contrast, higher levels of sTREM-1 have been described as indicative of poor prognosis in early stages of DENV arbovirus infection 46 , and recently, on the outcomes of SARS-CoV-2 infections 47 .…”
Section: Discussionmentioning
confidence: 99%
“…Corroborating this hypothesis, previous data from our group has shown an association between SNPs in TLR3 and TNFα involved in the decrease of antiviral immune response, with CZS occurrence and severity 19 . In contrast, higher levels of sTREM-1 have been described as indicative of poor prognosis in early stages of DENV arbovirus infection 46 , and recently, on the outcomes of SARS-CoV-2 infections 47 .…”
Section: Discussionmentioning
confidence: 99%
“…Matrix metalloproteinases (MMPs) are prominent mediators of tissue destruction and immune activity, whose importance has also been noted in the development of COVID-19 [7]. Increased activities of matrix metalloproteinase 9 (MMP-9), as well as matrix metalloproteinase 8 (MMP-8), were reported in patients with severe form of COVID-19 [8,9]. MMP-9 is a zinc-metalloproteinase (collagenase type IV; gelatinase B) that could alternate for primed neutrophils, while MMP-8 (neutrophil collagenase) degrades type I, II and III collagen of extracellular matrix.…”
Section: Introductionmentioning
confidence: 99%
“…Several lines of evidence support the role of HLA-G in COVID-19 pathogenesis, including (i) the increased levels of sHLA-G molecules in patients exhibiting various clinical manifestations of the disease [ 14 , 15 , 16 , 17 , 18 ], (ii) the increased number of immune system cells expressing HLA-G [ 16 , 19 ], (iii) the association of the HLA-G 3′untranslated region polymorphism with susceptibility to the disease [ 18 ], (iv) the increased tissue expression of HLA-G in case reports [ 20 , 21 ], and (v) the induction of the expression of hub genes, including HLA-G , in lung tissue infected by SARS-CoV-2 [ 22 ].…”
Section: Introductionmentioning
confidence: 99%