Innovative Pre-Clinical Data Using Peptides to Intervene in the Evolution of Pulmonary Fibrosis

Idiopathic pulmonary fibrosis (IPF) is a progressive, relentless, and deadly disease. Little is known about its pathogenetic mechanisms; therefore, developing efficient pharmacological therapies is challenging. This work aimed to apply a therapeutic alternative using immunomodulatory peptides in a c...

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Veröffentlicht in:International journal of molecular sciences 2023-07, Vol.24 (13), p.11049
Hauptverfasser: Simon, Karina Smidt, Coelho, Luísa Coutinho, Veloso, Jr, Paulo Henrique de Holanda, Melo-Silva, Cesar Augusto, Morais, José Athayde Vasconcelos, Longo, João Paulo Figueiró, Figueiredo, Florencio, Viana, Leonora, Silva Pereira, Ildinete, Amado, Veronica Moreira, Mortari, Marcia Renata, Bocca, Anamelia Lorenzetti
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container_issue 13
container_start_page 11049
container_title International journal of molecular sciences
container_volume 24
creator Simon, Karina Smidt
Coelho, Luísa Coutinho
Veloso, Jr, Paulo Henrique de Holanda
Melo-Silva, Cesar Augusto
Morais, José Athayde Vasconcelos
Longo, João Paulo Figueiró
Figueiredo, Florencio
Viana, Leonora
Silva Pereira, Ildinete
Amado, Veronica Moreira
Mortari, Marcia Renata
Bocca, Anamelia Lorenzetti
description Idiopathic pulmonary fibrosis (IPF) is a progressive, relentless, and deadly disease. Little is known about its pathogenetic mechanisms; therefore, developing efficient pharmacological therapies is challenging. This work aimed to apply a therapeutic alternative using immunomodulatory peptides in a chronic pulmonary fibrosis murine model. BALB/c mice were intratracheally instilled with bleomycin (BLM) and followed for 30 days. The mice were treated with the immune modulatory peptides ToAP3 and ToAP4 every three days, starting on the 5th day post-BLM instillation. ELISA, qPCR, morphology, and respiratory function analyses were performed. The treatment with both peptides delayed the inflammatory process observed in the non-treated group, which showed a fibrotic process with alterations in the production of collagen I, III, and IV that were associated with significant alterations in their ventilatory mechanics. The ToAP3 and ToAP4 treatments, by lung gene modulation patterns, indicated that distinct mechanisms determine the action of peptides. Both peptides controlled the experimental IPF, maintaining the tissue characteristics and standard function properties and regulating fibrotic-associated cytokine production. Data obtained in this work show that the immune response regulation by ToAP3 and ToAP4 can control the alterations that cause the fibrotic process after BLM instillation, making both peptides potential therapeutic alternatives and/or adjuvants for IPF.
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Both peptides controlled the experimental IPF, maintaining the tissue characteristics and standard function properties and regulating fibrotic-associated cytokine production. 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subjects Adjuvants
Animal models
Animals
Apoptosis
Bleomycin
Collagen
Collagen Type I
Cytokines
Disease
Enzyme-linked immunosorbent assay
Fibroblasts
Fibrosis
Gene expression
Health aspects
Idiopathic Pulmonary Fibrosis - drug therapy
Idiopathic Pulmonary Fibrosis - pathology
Immune response
Immune system
Immunomodulation
Inflammation
Lung - pathology
Lung diseases
Lungs
Mice
Mice, Inbred C57BL
Morphology
Peptides
Peptides - pharmacology
Peptides - therapeutic use
Pulmonary fibrosis
Respiratory function
Respiratory system
title Innovative Pre-Clinical Data Using Peptides to Intervene in the Evolution of Pulmonary Fibrosis
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