Found in inflammatory zone 1 (FIZZ1) plays a vital role in pulmonary inflammation and angiogenesis. In addition, FIZZ1 plays a role in the early stages of airway remodeling in asthma by increasing the expression of α smooth muscle actin (α-SMA) and type I collagen. However, the role of FIZZ1 in the airway remodeling of asthma remains unclear. In the present study, FIZZ1 was identified to be upregulated in ovalbumin (OVA)-induced asthmatic mice, along with phosphorylated protein kinase B (Akt). Following FIZZ1 recombinant protein co-culture in the murine lung epithelial-cell line, Akt phosphorylation was upregulated, however, following transfection with FIZZ1-small hairpin RNA, the phosphorylation levels were decreased. The variation in α-SMA and type I collagen expression levels was consistent with the Akt phosphorylation levels. Intratracheal administration of LY294002 and Akt inhibitor IV to the asthmatic mice was capable of reducing airway inflammation, downregulating the expression of α-SMA, type I collagen and fibronectin-1 and increasing the expression of E-cadherin. In conclusion, the present study demonstrated that FIZZ1 promoted airway remodeling in asthma via the phosphoinositide 3-kinase (PI3K)/Akt signaling pathway. Blocking the PI3K/Akt signaling pathway may attenuate the early stages of airway remodeling induced by OVA by regulating the abnormal process of epithelial-mesenchymal transition.
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http://dx.doi.org/10.3892/etm.2014.1580 | DOI Listing |
J Cardiothorac Surg
December 2024
Department of Internal Medicine, the Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Shangcheng District, Hangzhou, China, 310009.
Objective: Asthma is a prevalent status attributing to lower respiratory tract chronic inflammation. Azithromycin (AZM) is known to be effective against asthma. Thus, this study delved into the mechanism of AZM repressing airway remodeling (AR) via the SAPK/JNK pathway in asthma.
View Article and Find Full Text PDFJ Inflamm Res
December 2024
Beijing Institute of Heart, Lung and Blood Vessel Diseases, The Key Laboratory of Remodeling Cardiovascular Diseases, Ministry of Education, Collaborative Innovation Center for Cardiovascular Disorders, Beijing Anzhen Hospital, Capital Medical University, Beijing, People's Republic of China.
Aim: To investigate the regulatory mechanism of CXCL16 molecule-related ( extract-induced antigen presentation in a mouse asthma model based on the long non-coding RNA (lncRNA) and mRNA expression profile.
Methods: knockout mice and wild-type mice were administered with . extract by intratracheal instillations to induce asthma airway inflammation.
J Inflamm (Lond)
December 2024
Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China.
The chemokine CCL20, a small cytokine that belongs to the C-C chemokine family, interacts with its homologous receptor CCR6, which is expressed on wide range of cell types. According to current research, the CCL20-CCR6 has been established as acritical player in a diverse range of inflammatory, oncogenic, and autoimmune diseases. Within the respiratory system, CCL20-CCR6 demonstrates heightened expression in conditions such as allergic asthma, chronic airway inflammation, non-small cell lung cancer (NSCLC), chronic obstructive pulmonary disease (COPD), and other respiratory diseases, which is conducive to the inflammatory mediators recruitment and tumor microenvironment remodeling.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
December 2024
Department of Laboratory Medicine, Hengyang First People's Hospital, Hengyang 421001, China.
Objectives: To investigate the protective effect of the probiotic bacterium K12 (K12) against (Mp) infection in mice.
Methods: Forty male BALB/c mice were randomized into normal control group, K12 treatment group, Mp infection group, and K12 pretreatment prior to Mp infection group. The probiotic K12 was administered daily by gavage for 14 days before Mp infection induced by intranasal instillation of Mp.
Cent Eur J Immunol
November 2024
Department of Respiratory Medicine, The Fourth Hospital of Changsha, Changsha, China.
Introduction: Neutrophil autophagy and neutrophil extracellular trap (NET) formation are closely related to asthma pathogenesis. Src homology domain 2-containing protein tyrosine phosphatase 2 (SHP2) is an important regulatory factor in airway remodeling in asthma. This study aimed to explore the molecular mechanisms of SHP2 in neutrophils.
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