Resolution pharmacology and the treatment of infectious diseases

Costa, Vivian Vasconcelos; Resende, Filipe; Melo, Eliza Mathias; Teixeira, Mauro Martins

doi:10.1111/bph.16323

Cited by 4 publications

References 194 publications

(286 reference statements)

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Effects of a pro‐resolving drug in COVID‐19: preclinical studies to a randomized, placebo‐controlled, phase Ib/IIa trial in hospitalized patients

Almeida,

Periard,

Tana

et al. 2024

British J Pharmacology

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IntroductionPro‐resolving molecules may curb disease caused by viruses without altering the capacity of the host to deal with infection. AP1189 is a melanocortin receptor‐biased agonist endowed with pro‐resolving and anti‐inflammatory activity. We evaluated the preclinical and early clinical effects of treatment with AP1189 in the context of COVID‐19.MethodsC57BL/6j mice were infected intranasally with MHV‐A59 or hK18‐ACE2 mice with SARS‐CoV‐2. AP1189 (10 mg·kg−1, BID, s.c.) was given to the animals from day 2 and parameters evaluated at day 5. Human PBMCs from health donors were infected with SARS‐CoV‐2 in presence or absence of AP1189 and production of cytokines quantified. In the clinical study, 6 patients were initially given AP1189 (100 mg daily for 14 days) and this was followed by a randomized (2:1), placebo‐controlled, double‐blind trial that enrolled 54 hospitalized COVID‐19 patients needing oxygen support. The primary outcome was the time in days until respiratory recovery, defined as a SpO2 ≥ 93% in ambient air.ResultsTreatment with AP1189 attenuated pulmonary inflammation in mice infected with MHV‐A59 or SARS‐CoV‐2 and decreased the release of CXCL10, TNF‐α and IL‐1β by human PBMCs. Hospitalized COVID‐19 patients already taking glucocorticoids took a median time of 6 days until respiratory recovery when given placebo versus 4 days when taking AP1189 (P = 0.017).ConclusionTreatment with AP1189 was associated with less disease caused by beta‐coronavirus infection both in mice and in humans. This is the first demonstration of the effects of a pro‐resolving molecule in the context of severe infection in humans.

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Effects of a pro‐resolving drug in COVID‐19: preclinical studies to a randomized, placebo‐controlled, phase Ib/IIa trial in hospitalized patients

Almeida,

Periard,

Tana

et al. 2024

British J Pharmacology

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The analgesic effects of Yu-Xue-Bi tablet (YXB) on mice with inflammatory pain by regulating LXA4-FPR2-TRPA1 pathway

Liu,

Zhang,

Zhu

et al. 2024

Chin Med

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Background Oxylipins including lipoxin A4 (LXA4) facilitate the resolution of inflammation and possess analgesic properties by inhibiting macrophage infiltration and transient receptor potential (TRP) protein expression. Yu-Xue-Bi Tablet (YXB) is a traditional Chinese patent medicine used to relieve inflammatory pain. Our previous research has shown that the analgesic effect of YXB is related to inhibiting peripheral inflammation and regulating macrophage infiltration, but the mechanism is not yet clear. The purpose of this study is to explore the mechanisms of YXB on mice models with Complete Freund’s Adjuvant (CFA)-induced inflammatory pain from the perspective at the resolution of inflammation. Methods Mechanical allodynia thresholds and heat hypersensitivity were measured using the Von Frey test and the hot plate test respectively. The open field test and the tail suspension test were employed to measure anxiety and depressive behaviors respectively. The expression of CD68+ and the proportion of F4/80+CD11b+ cells were measured by immunofluorescence staining and flow cytometry. The expression of transient receptor potential ankyrin 1(TRPA1) was measured by immunofluorescence staining and western blotting. Oxylipins omics analysis provided quantitative data on oxylipins in the paws, and enzyme linked immunosorbent assay (ELISA) was used to measure the levels of LXA4 there. Immunofluorescence staining was used to perform the expression of Leukotriene A4 hydroxylase (LTA4H) in the paws of mice. The impact of injecting the formyl peptide receptor 2(FPR2) antagonist WRW4 and the TRPA1 agonist AITC into the left paws was observed, focusing on the expression of mechanical allodynia thresholds, the expression of CD68+, TRPA1 in the paws, and Calcitonin gene-related peptide (CGRP) in the L5 spinal dorsal horn. Results YXB elevated mechanical allodynia thresholds, alleviated heat hypersensitivity and anxiety and depressive behaviors in CFA mice. It significantly reduced the number of CD68+ and proportion of F4/80+CD11b+ within the paws, thereby decreasing macrophage infiltration. Additionally, it diminished the expression of TRPA1 in the paws and TRPV1 in the DRG, leading to an inhibition of peripheral sensitization. Through quantitative analysis, it was found that YXB could modulate DHA-derived oxylipins and LXA4. ELISA results indicated that YXB elevated the levels of LXA4 and inhibited the expression of LAT4H in the paws. Furthermore, the pro-resolution and analgesic effects of YXB were hindered after administration of the FPR2 antagonist. Compared with the AITC group, YXB showed no significant improvement in anti-inflammatory and analgesic effects. Conclusions YXB can regulate the oxylipins of paws in CFA mice to promote the resolution of inflammation. The LXA4-FPR2-TRPA1 pathway is a key mechanism for the resolution of inflammation and analgesic effects.

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Treatment with lipoxin A 4 improves influenza A infection outcome through macrophage reprogramming, anti-inflammatory and pro-resolutive responses

Rago,

Melo,

Miller

et al. 2024

Preprint

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Objective and design: Here, we evaluated whether a synthetic lipoxin mimetic, designated AT-01-KG, would improve the course of influenza A infection in a murine model. Treatment: Mice were infected with influenza A/H1N1 and treated with AT-01-KG (1.7 mg/kg/day, i.p.) at day 3 post-infection. Methods Mortality rate was assessed up to day 21 and inflammatory parameters were assessed at days 5 and 7. Results AT-01-KG attenuated mortality, reducing leukocyte infiltration and lung damage at day 5 and day 7 post-infection. AT-01-KG is a Formyl Peptide Receptor 2 (designated FPR2/3 in mice) agonist, and the protective responses were not observed in FPR2/3 −/− animals. In mice treated with LXA4 (50mg/kg/day, i.p., days 3–6 post-infection), at day 7, macrophage reprogramming was observed, as seen by a decrease in classically activated macrophages and an increase in alternatively activated macrophages in the lungs. Furthermore, the number of apoptotic cells and cells undergoing efferocytosis was increased in the lavage of treated mice. Treatment also modulated the adaptive immune response, increasing the number of anti-inflammatory T cells (Th2) and regulatory T (Tregs) cells in the lungs of the treated mice. Conclusions Therefore, treatment with a lipoxin A4 analog was beneficial in a model of influenza A infection in mice. The drug decreased inflammation and promoted resolution and beneficial immune responses, suggesting it may be useful in patients with severe influenza.

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Resolution pharmacology and the treatment of infectious diseases

Cited by 4 publications

References 194 publications

Effects of a pro‐resolving drug in COVID‐19: preclinical studies to a randomized, placebo‐controlled, phase Ib/IIa trial in hospitalized patients

Effects of a pro‐resolving drug in COVID‐19: preclinical studies to a randomized, placebo‐controlled, phase Ib/IIa trial in hospitalized patients

The analgesic effects of Yu-Xue-Bi tablet (YXB) on mice with inflammatory pain by regulating LXA4-FPR2-TRPA1 pathway

Treatment with lipoxin A 4 improves influenza A infection outcome through macrophage reprogramming, anti-inflammatory and pro-resolutive responses

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