1
|
Solyeyko OV, Chernykh MO, Iliuk IA, Baranova IV, Romash IB, Berezovskyi AM, Soleiko LP. Asthma in patients with the syndrome of undifferentiated dysplasia of connective tissue: peculiarities of the course or mutually aggravating mechanisms? WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2024; 77:821-827. [PMID: 38865642 DOI: 10.36740/wlek202404130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
OBJECTIVE Aim: To analyse laboratory and biochemical features of the severe persistent course of asthma in patients with undifferentiated connective tissue dysplasia (UCTD) syndrome, and their phenotypic and visceral stigmas of dysembryogenesis. PATIENTS AND METHODS Materials and Methods: We enrolled 60 male patients with asthma, aged from 23 to 62 years (mean age (46.83 ±0.85) years): 30 patients with the background of UCTD, and 30 - without UCTD. We analysed clinical, somatometric, surveying (original questionnaire based on the phenotypic map of Glesby), instrumental (spirography, echocardiography, endoscopy, esophagofibrogastroduodenoscopy) and laboratory (including eosinophilic granulocytes and aldosterone levels) data. RESULTS Results: Correlations were found in men with UCTD between the number of UCTD markers and rate of earlobe diagonal fold (r=+0.75; р<0.05), asthenic constitution (r=+0.72; р<0.05), easy bruising (r=+0.7; p<0.05) and straight abdominal line hernia (r=+0.52; p<0.05). Average aldosterone serum level in patients with UCTD (176,10 ±11,22) was significantly higher than in those without UCTD (142,77 ±9,43), (p<0.05), as well as average eosinophils levels (1.3 ±0.25 vs. 0.57 ±0.12, p<0.05). In the absolute majority of patients with UCTD (93.3%) asthma onset was confirmed after pneumonia, and their age of asthma manifestation was significantly higher (37.2 ±1.21) than in patients without UCTD (21.4 ±1.13). Also, in patients with UCTD there was a high number of severe exacerbations during the last year (2.7 ±0.12 per year) on the background of high doses of combined inhaled glucocorticosteroids use. CONCLUSION Conclusions: Identified "phenotypic profile", clinical and biochemical features of patients with asthma on the background of UCTD syndrome, which determine the severe course and early formation of asthma complications, will further accelerate the diagnosis of this asthma phenotype and improve approaches to the selection of treatment regimens for these patients.
Collapse
Affiliation(s)
| | | | - Iryna A Iliuk
- NATIONAL PIROGOV MEMORIAL MEDICAL UNIVERSITY, VINNYTSIA, UKRAINE
| | - Iryna V Baranova
- NATIONAL PIROGOV MEMORIAL MEDICAL UNIVERSITY, VINNYTSIA, UKRAINE
| | - Iryna B Romash
- IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK. UKRAINE
| | | | - Larysa P Soleiko
- NATIONAL PIROGOV MEMORIAL MEDICAL UNIVERSITY, VINNYTSIA, UKRAINE
| |
Collapse
|
2
|
Sun J, Zhang H, Liu D, Liu W, Du J, Wen D, Li L, Zhang A, Jiang J, Zeng L. CTGF promotes the repair and regeneration of alveoli after acute lung injury by promoting the proliferation of subpopulation of AEC2s. Respir Res 2023; 24:227. [PMID: 37741976 PMCID: PMC10517460 DOI: 10.1186/s12931-023-02512-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/14/2023] [Indexed: 09/25/2023] Open
Abstract
BACKGROUND Functional alveolar regeneration is essential for the restoration of normal lung homeostasis after acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Lung is a relatively quiescent organ and a variety of stem cells are recruited to participate in lung repair and regeneration after lung tissue injury. However, there is still no effective method for promoting the proliferation of endogenous lung stem cells to promote repair and regeneration. METHODS Using protein mass spectrometry analysis, we analyzed the microenvironment after acute lung injury. RNA sequencing and image cytometry were used in the alveolar epithelial type 2 cells (AEC2s) subgroup identification. Then we used Sftpc+AEC2 lineage tracking mice and purified AEC2s to further elucidate the molecular mechanism by which CTGF regulates AEC2s proliferation both in vitro and in vivo. Bronchoalveolar lavage fluid (BALF) from thirty ARDS patients who underwent bronchoalveolar lavage was collected for the analysis of the correlation between the expressing of Krt5 in BALF and patients' prognosis. RESULTS Here, we elucidate that AEC2s are the main facultative stem cells of the distal lung after ALI and ARDS. The increase of connective tissue growth factor (CTGF) in the microenvironment after ALI promoted the proliferation of AEC2s subpopulations. Proliferated AEC2s rapidly expanded and differentiated into alveolar epithelial type 1 cells (AEC1s) in the regeneration after ALI. CTGF initiates the phosphorylation of LRP6 by promoting the interaction between Krt5 and LRP6 of AEC2s, thus activating the Wnt signaling pathway, which is the molecular mechanism of CTGF promoting the proliferation of AEC2s subpopulation. CONCLUSIONS Our study verifies that CTGF promotes the repair and regeneration of alveoli after acute lung injury by promoting the proliferation of AEC2s subpopulation.
Collapse
Affiliation(s)
- Jianhui Sun
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Huacai Zhang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Di Liu
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Wenyi Liu
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Juan Du
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Dalin Wen
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Luoxi Li
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Anqiang Zhang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China
| | - Jianxin Jiang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China.
| | - Ling Zeng
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400042, China.
| |
Collapse
|
3
|
Scieszka DP, Garland D, Hunter R, Herbert G, Lucas S, Jin Y, Gu H, Campen MJ, Cannon JL. Multi-omic assessment shows dysregulation of pulmonary and systemic immunity to e-cigarette exposure. Respir Res 2023; 24:138. [PMID: 37231407 PMCID: PMC10209577 DOI: 10.1186/s12931-023-02441-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/01/2023] [Indexed: 05/27/2023] Open
Abstract
Electronic cigarette (Ecig) use has become more common, gaining increasing acceptance as a safer alternative to tobacco smoking. However, the 2019 outbreak of Ecig and Vaping-Associated Lung Injury (EVALI) alerted the community to the potential for incorporation of deleterious ingredients such as vitamin E acetate into products without adequate safety testing. Understanding Ecig induced molecular changes in the lung and systemically can provide a path to safety assessment and protect consumers from unsafe formulations. While vitamin E acetate has been largely removed from commercial and illicit products, many Ecig products contain additives that remain largely uncharacterized. In this study, we determined the lung-specific effects as well as systemic immune effects in response to exposure to a common Ecig base, propylene glycol and vegetable glycerin (PGVG), with and without a 1% addition of phytol, a diterpene alcohol that has been found in commercial products. We exposed animals to PGVG with and without phytol and assessed metabolite, lipid, and transcriptional markers in the lung. We found both lung-specific as well as systemic effects in immune parameters, metabolites, and lipids. Phytol drove modest changes in lung function and increased splenic CD4 T cell populations. We also conducted multi-omic data integration to better understand early complex pulmonary responses, highlighting a central enhancement of acetylcholine responses and downregulation of palmitic acid connected with conventional flow cytometric assessments of lung, systemic inflammation, and pulmonary function. Our results demonstrate that Ecig exposure not only leads to changes in pulmonary function but also affects systemic immune and metabolic parameters.
Collapse
Affiliation(s)
- David P Scieszka
- Department of Pharmaceutical Sciences, University of New Mexico School of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Devon Garland
- Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, MSC 08 4660, 1 University of New Mexico, Albuquerque, NM, 87131, USA
| | - Russell Hunter
- Department of Pharmaceutical Sciences, University of New Mexico School of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Guy Herbert
- Department of Pharmaceutical Sciences, University of New Mexico School of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Selita Lucas
- Department of Pharmaceutical Sciences, University of New Mexico School of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, FL, USA
| | - Matthew J Campen
- Department of Pharmaceutical Sciences, University of New Mexico School of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Judy L Cannon
- Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, MSC 08 4660, 1 University of New Mexico, Albuquerque, NM, 87131, USA.
- Autophagy, Inflammation, and Metabolism Center of Biomedical Research Excellence, University of New Mexico School of Medicine, Albuquerque, NM, USA.
| |
Collapse
|
4
|
Wang N, Liang Y, Ma Q, Mi J, Xue Y, Yang Y, Wang L, Wu X. Mechanisms of ag85a/b DNA vaccine conferred immunotherapy and recovery from Mycobacterium tuberculosis-induced injury. Immun Inflamm Dis 2023; 11:e854. [PMID: 37249284 DOI: 10.1002/iid3.854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 05/31/2023] Open
Abstract
Our previous research developed a novel tuberculosis (TB) DNA vaccine ag85a/b that showed a significant therapeutic effect on the mouse tuberculosis model by intramuscular injection (IM) and electroporation (EP). However, the action mechanisms between these two vaccine immunization methods remain unclear. In a previous study, 96 Mycobacterium tuberculosis (MTB) H37 Rv-infected BALB/c mice were treated with phosphate-buffered saline, 10, 50, 100, and 200 μg ag85a/b DNA vaccine delivered by IM and EP three times at 2-week intervals, respectively. In this study, peripheral blood mononuclear cells (PBMCs) from three mice in each group were isolated to extract total RNA. The gene expression profiles were analyzed using gene microarray technology to obtain differentially expressed (DE) genes. Finally, DE genes were validated by real-time reverse transcription-quantitive polymerase chain reaction and the GEO database. After MTB infection, most of the upregulated DE genes were related to the digestion and absorption of nutrients or neuroendocrine (such as Iapp, Scg2, Chga, Amy2a5), and most of the downregulated DE genes were related to cellular structural and functional proteins, especially the structure and function proteins of the alveolar epithelial cell (such as Sftpc, Sftpd, Pdpn). Most of the abnormally upregulated or downregulated DE genes in the TB model group were recovered in the 100 and 200 μg ag85a/b DNA IM groups and four DNA EP groups. The pancreatic secretion pathway downregulated and the Rap1 signal pathway upregulated had particularly significant changes during the immunotherapy of the ag85a/b DNA vaccine on the mouse TB model. The action targets and mechanisms of IM and EP are highly consistent. Tuberculosis infection causes rapid catabolism and slow anabolism in mice. For the first time, we found that the effective dose of the ag85a/b DNA vaccine immunized whether by IM or EP could significantly up-regulate immune-related pathways and recover the metabolic disorder and the injury caused by MTB.
Collapse
Affiliation(s)
- Nan Wang
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Yan Liang
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Qianqian Ma
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Jie Mi
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Yong Xue
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Yourong Yang
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Lan Wang
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| | - Xueqiong Wu
- Tuberculosis Prevention and Control Key Laboratory, Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The Eighth Medical Center of PLA General Hospital, PLA General Hospital, Beijing, China
| |
Collapse
|
5
|
Yuan Y, Yang Y, Lei X, Dong W. Caffeine and bronchopulmonary dysplasia: Clinical benefits and the mechanisms involved. Pediatr Pulmonol 2022; 57:1392-1400. [PMID: 35318830 DOI: 10.1002/ppul.25898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/05/2022] [Accepted: 03/16/2022] [Indexed: 11/06/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease that occurs during the neonatal period and is commonly associated with prematurity. This condition results in a severe economic burden on society and the families involved. Caffeine is used not only for the treatment of apnea in prematurity, but also for the prevention of BPD. There are multiple clinical benefits of caffeine treatment, including improved extubation success, a reduced duration of mechanical ventilation, improved lung function, and a reduction of patent ductus arteriosus requiring treatment. These clinical benefits of caffeine for the treatment of BPD are supported by both clinical trials and evidence from animal models. However, the mechanism by which caffeine protects against BPD remains unclear. Here, we review the clinical value of caffeine in the prevention of BPD and its potential mechanisms of action, including anti-inflammatory, antioxidant, antifibrotic, and antiapoptotic properties, the regulation of angiogenesis, and diuretic effects. Our aim is to provide a new theoretical basis for the clinical treatment of BPD.
Collapse
Affiliation(s)
- Yuan Yuan
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yang Yang
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoping Lei
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Wenbin Dong
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| |
Collapse
|
6
|
Mei Q, Liu Z, Zuo H, Yang Z, Qu J. Idiopathic Pulmonary Fibrosis: An Update on Pathogenesis. Front Pharmacol 2022; 12:797292. [PMID: 35126134 PMCID: PMC8807692 DOI: 10.3389/fphar.2021.797292] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/29/2021] [Indexed: 12/15/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive, lethal fibrotic lung disease that occurs primarily in middle-aged and elderly adults. It is a major cause of morbidity and mortality. With an increase in life expectancy, the economic burden of IPF is expected to continuously rise in the near future. Although the exact pathophysiological mechanisms underlying IPF remain not known. Significant progress has been made in our understanding of the pathogenesis of this devastating disease in last decade. The current paradigm assumes that IPF results from sustained or repetitive lung epithelial injury and subsequent activation of fibroblasts and myofibroblast differentiation. Persistent myofibroblast phenotype contributes to excessive deposition of the extracellular matrix (ECM) and aberrant lung repair, leading to tissue scar formation, distortion of the alveolar structure, and irreversible loss of lung function. Treatments of patients with IPF by pirfenidone and nintedanib have shown significant reduction of lung function decline and slowing of disease progression in patients with IPF. However, these drugs do not cure the disease. In this review, we discuss recent advances on the pathogenesis of IPF and highlight the development of novel therapeutic strategies against the disease.
Collapse
Affiliation(s)
| | | | | | | | - Jing Qu
- *Correspondence: Zhenhua Yang, ; Jing Qu,
| |
Collapse
|
7
|
Zuo J, Tong Y, Yang Y, Wang Y, Yue D. Claudin-18 expression under hyperoxia in neonatal lungs of bronchopulmonary dysplasia model rats. Front Pediatr 2022; 10:916716. [PMID: 36299696 PMCID: PMC9589239 DOI: 10.3389/fped.2022.916716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is characterized by impaired alveolar and microvascular development. Claudin-18 is the only known lung-specific tight junction protein affecting the development and transdifferentiation of alveolar epithelium. OBJECTIVE We aimed to explore the changes in the expression of claudin-18, podoplanin, SFTPC, and the canonical WNT pathway, in a rat model of hyperoxia-induced BPD, and to verify the regulatory relationship between claudin-18 and the canonical WNT pathway by cell experiments. METHODS A neonatal rat and cell model of BPD was established by exposing to hyperoxia (85%). Hematoxylin and eosin (HE) staining was used to confirm the establishment of the BPD model. The mRNA levels were assessed using quantitative real-time polymerase chain reaction(qRT-PCR). Protein expression levels were determined using western blotting, immunohistochemical staining, and immunofluorescence. RESULTS As confirmed by HE staining, the neonatal rat model of BPD was successfully established. Compared to that in the control group, claudin-18 and claudin-4 expression decreased in the hyperoxia group. Expression of β-catenin in the WNT signaling pathway decreased, whereas that of p-GSK-3β increased. Expression of the AEC II marker SFTPC initially decreased and then increased, whereas that of the AEC I marker podoplanin increased on day 14 (P < 0.05). Similarly, claudin-18, claudin-4, SFTPC and β-catenin were decreased but podoplanin was increased when AEC line RLE-6TN exposed to 85% hyperoxia. And the expression of SFTPC was increased, the podoplanin was decreased, and the WNT pathway was upregulated when claudin-18 was overexpressed. CONCLUSIONS Claudin-18 downregulation during hyperoxia might affect lung development and maturation, thereby resulting in hyperoxia-induced BPD. Additionally, claudin-18 is associated with the canonical WNT pathway and AECs transdifferentiation.
Collapse
Affiliation(s)
- Jingye Zuo
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yajie Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuting Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yirui Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Dongmei Yue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
8
|
Liu J, Dong Y, Ji Q, Wen Y, Ke G, Shi L, Guan W, Xu W. Circ-MKLN1/miR-377-3p/CTGF Axis Regulates the TGF-β2-induced Posterior Capsular Opacification in SRA01/04 Cells. Curr Eye Res 2021; 47:372-381. [PMID: 34961410 DOI: 10.1080/02713683.2021.1988983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Posterior capsular opacification (PCO) is a common postoperative ocular complication after cataract surgery. Little research focused on the regulation of circular RNAs (circRNAs) in PCO. This study was designed to investigate the function of circRNA-muskelin (circ-MKLN1) in PCO. METHODS SRA01/04 cells were treated with transforming growth factor (TGF)-β2. Cell viability was analyzed by Cell Counting Kit-8 (CCK-8) assay. Transwell assay was used for cell migration and invasion detection. Cell migration was also measured by wound healing assay. Epithelial-mesenchymal transition (EMT)-related proteins and connective tissue growth factor (CTGF) were quantified using western blot. RESULTS Cell viability, migration, invasion and EMT process in SRA01/04 cells were facilitated by TGF-β2. Circ-MKLN1 expression was enhanced in 17 PCO lens samples relative to 19 normal lens samples and TGF-β2-treated SRA01/04 cells contrasted to control cells. Downregulation of circ-MKLN1 inhibited the effects of TGF-β2 on SRA01/04 cells. Circ-MKLN1 targeted miR-377-3p and the regulation of si-circ-MKLN1 for the TGF-β2-induced influences was related to the upregulation of miR-377-3p. CTGF was the target gene for miR-377-3p. CTGF knockdown also abolished the TGF-β2-mediated cell growth, migration and invasion of SRA01/04 cells. The function of miR-377-3p was achieved by reducing the CTGF level. TGF-β2-induced CTGF expression promotion was alleviated by si-circ-MKLN1 through upregulating the expression of miR-377-3p. CONCLUSION These results showed that circ-MKLN1 contributed to the progression of PCO in vitro by increasing the CTGF expression via sponging miR-377-3p. Circ-MKLN1 might be important for improving the molecular target therapy in PCO.
Collapse
Affiliation(s)
- Jiajia Liu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei City, Anhui, 230001, China.,Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China.,Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, China.,Gerontology Institute of Anhui Province, Hefei, Anhui, China
| | - Yiran Dong
- Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China
| | - Qingshan Ji
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei City, Anhui, 230001, China.,Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China.,Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, China
| | - Yuechun Wen
- Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China
| | - Genjie Ke
- Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China
| | - Lei Shi
- Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China
| | - Wei Guan
- Department of Ophthalmology, The First Affiliated Hospital of USTC, Hefei, Anhui, China
| | - Weiping Xu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei City, Anhui, 230001, China.,Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy, Hefei, China.,Gerontology Institute of Anhui Province, Hefei, Anhui, China
| |
Collapse
|
9
|
Sahni M, Bhandari V. Patho-mechanisms of the origins of bronchopulmonary dysplasia. Mol Cell Pediatr 2021; 8:21. [PMID: 34894313 PMCID: PMC8665964 DOI: 10.1186/s40348-021-00129-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/15/2021] [Indexed: 12/17/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) continues to be one of the most common complications of prematurity, despite significant advancement in neonatology over the last couple of decades. The new BPD is characterized histopathologically by impaired lung alveolarization and dysregulated vascularization. With the increased survival of extremely preterm infants, the risk for the development of BPD remains high, emphasizing the continued need to understand the patho-mechanisms that play a role in the development of this disease. This brief review summarizes recent advances in our understanding of the maldevelopment of the premature lung, highlighting recent research in pathways of oxidative stress-related lung injury, the role of placental insufficiency, growth factor signaling, the extracellular matrix, and microRNAs.
Collapse
Affiliation(s)
- Mitali Sahni
- Pediatrix Medical Group, Sunrise Children's Hospital, Las Vegas, NV, USA.,University of Nevada, Las Vegas, NV, USA
| | - Vineet Bhandari
- Neonatology Research Laboratory, Education and Research Building, Cooper University Hospital, One Cooper Plaza, Camden, NJ, 08103, USA.
| |
Collapse
|
10
|
Kolobaric A, Vukojevic K, Brekalo S, Misković J, Ries M, Lasic Arapovic L, Soljic V. Expression and localization of FGFR1, FGFR2 and CTGF during normal human lung development. Acta Histochem 2021; 123:151719. [PMID: 33962151 DOI: 10.1016/j.acthis.2021.151719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
Aim of our study was to provide insight into the temporal and spatial expression of FGFR1, FGFR2 and CTGF during normal human lung development which may have an important impact on understanding occurrence of developmental lung anomalies. Morphological parameters were analysed using double immunofluorescence on human embryonal (6th and 7th developmental week-dw) and foetal (8th, 9th and 16th developmental week) human lung samples. FGFR1 and FGFR2 was positive during all the dw in both the epithelium and mesenchyme. The highest number of FGFR1 positive cells was observed during the 6th dw (112/mm2) and 9th dw (87/mm2) in the epithelium compared to the 7th, 8th and 16th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001). The highest number of FGFR1 positive cells in the mesenchyme was observed during the 8th dw (19/mm2) and 16th dw (13/mm2) compared to the 6th, 7th, and 9th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001). The number of FGFR1 positive cells in the epithelium was higher for FGFR2 compared to number of positive cells (Mann-Whitney test, p < 0.0001). FGFR2 showed the highest number in the epithelium during the 7th dw (111/mm2) and 9th dw (87/mm2) compared to 6th, 8th and 16th dw (Kruskal-Wallis test, p < 0.001, p < 0.0001, p < 0.01 respectively). The highest number of FGFR2 positive cells in the mesenchyme was observed during the 9th dw (26/mm2), compared to the 6th, 7th,8th and 16th dw (Kruskal-Wallis test, p < 0.0001), while the number of FGFR2 positive cells in the epithelium was significantly higher than in the mesenchyme (Mann-Whitney test, p < 0.0001). CTGF was negative in both epithelium and mesenchyme during all except the 16th dw in the mesenchyme where it co-localized with FGFR2. FGFR1 and FGFR2 might be essential for epithelial-mesenchymal interactions that determine epithelial branching and mesenchymal growth during early lung development. Sudden increase in FGF1 in the epithelium and FGF2 in the mesenchyme in the foetus at 9th dw could be associated with the onset of foetal breathing movements. CTGF first appear during the foetal lung development.
Collapse
|
11
|
Tam AYY, Horwell AL, Trinder SL, Khan K, Xu S, Ong V, Denton CP, Norman JT, Holmes AM, Bou-Gharios G, Abraham DJ. Selective deletion of connective tissue growth factor attenuates experimentally-induced pulmonary fibrosis and pulmonary arterial hypertension. Int J Biochem Cell Biol 2021; 134:105961. [PMID: 33662577 PMCID: PMC8111417 DOI: 10.1016/j.biocel.2021.105961] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022]
Abstract
Connective tissue growth factor (CTGF, CCN2) is a matricellular protein which plays key roles in normal mammalian development and in tissue homeostasis and repair. In pathological conditions, dysregulated CCN2 has been associated with cancer, cardiovascular disease, and tissue fibrosis. In this study, genetic manipulation of the CCN2 gene was employed to investigate the role of CCN2 expression in vitro and in experimentally-induced models of pulmonary fibrosis and pulmonary arterial hypertension (PAH). Knocking down CCN2 using siRNA reduced expression of pro-fibrotic markers (fibronectin p < 0.01, collagen type I p < 0.05, α-SMA p < 0.0001, TIMP-1 p < 0.05 and IL-6 p < 0.05) in TGF-β-treated lung fibroblasts derived from systemic sclerosis patients. In vivo studies were performed in mice using a conditional gene deletion strategy targeting CCN2 in a fibroblast-specific and time-dependent manner in two models of lung disease. CCN2 deletion significantly reduced pulmonary interstitial scarring and fibrosis following bleomycin-instillation, as assessed by fibrotic scores (wildtype bleomycin 3.733 ± 0.2667 vs CCN2 knockout (KO) bleomycin 4.917 ± 0.3436, p < 0.05) and micro-CT. In the well-established chronic hypoxia/Sugen model of pulmonary hypertension, CCN2 gene deletion resulted in a significant decrease in pulmonary vessel remodelling, less right ventricular hypertrophy and a reduction in the haemodynamic measurements characteristic of PAH (RVSP and RV/LV + S were significantly reduced (p < 0.05) in CCN2 KO compared to WT mice in hypoxic/SU5416 conditions). These results support a prominent role for CCN2 in pulmonary fibrosis and in vessel remodelling associated with PAH. Therefore, therapeutics aimed at blocking CCN2 function are likely to benefit several forms of severe lung disease.
Collapse
Affiliation(s)
- Angela Y Y Tam
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK.
| | - Amy L Horwell
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, L7 8TX, UK
| | - Sarah L Trinder
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Korsa Khan
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Shiwen Xu
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Voon Ong
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Christopher P Denton
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Jill T Norman
- Department of Renal Medicine, Division of Medicine, University College London, London, NW3 2PF, UK
| | - Alan M Holmes
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| | - George Bou-Gharios
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, L7 8TX, UK
| | - David J Abraham
- Centre for Rheumatology and Connective Tissue Disease, Department of Inflammation, Division of Medicine, University College London, London, NW3 2PF, UK
| |
Collapse
|
12
|
Ren Z, Li J, Zhao S, Qiao Q, Li R. Knockdown of MCM8 functions as a strategy to inhibit the development and progression of osteosarcoma through regulating CTGF. Cell Death Dis 2021; 12:376. [PMID: 33828075 PMCID: PMC8027380 DOI: 10.1038/s41419-021-03621-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/09/2021] [Accepted: 03/11/2021] [Indexed: 12/19/2022]
Abstract
Osteosarcoma is the most common primary malignant tumor of bone derived from osteoblasts, which is a noteworthy threat to the health of children and adolescents. In this study, we found that MCM8 has significantly higher expression level in osteosarcoma tissues in comparison with normal tissues, which was also correlated with more advanced tumor grade and pathological stage. In agreement with the role of MCM proteins as indicators of cell proliferation, knockdown/overexpression of MCM8 inhibited/promoted osteosarcoma cell proliferation in vitro and tumor growth in vivo. Also, MCM8 knockdown/overexpression was also significantly associated with the promotion/inhibition of cell apoptosis and suppression/promotion of cell migration. More importantly, mechanistic study identified CTGF as a potential downstream target of MCM8, silencing of which could enhance the regulatory effects of MCM8 knockdown and alleviate the effects of MCM8 overexpression on osteosarcoma development. In summary, MCM8/CTGF axis was revealed as critical participant in the development and progression of osteosarcoma and MCM8 may be a promising therapeutic target for osteosarcoma treatment.
Collapse
Affiliation(s)
- Zhinan Ren
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jun Li
- Department of Orthopedics, The Second Affiliated Hospital of Anhui Medical University, 678 Furong, Hefei, 230601, China
| | - Shanwen Zhao
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510610, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, 510630, China.,Academy of Orthopaedics, Guangdong Province, Guangzhou, 510630, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, Guangzhou, 510515, China
| | - Qi Qiao
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Runguang Li
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510610, China. .,Orthopaedic Hospital of Guangdong Province, Guangzhou, 510630, China. .,Academy of Orthopaedics, Guangdong Province, Guangzhou, 510630, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, Guangzhou, 510515, China. .,Department of Orthopedics, Linzhi People's Hospital, Linzhi, 860000, China.
| |
Collapse
|
13
|
Signaling Pathways Involved in the Development of Bronchopulmonary Dysplasia and Pulmonary Hypertension. CHILDREN-BASEL 2020; 7:children7080100. [PMID: 32824651 PMCID: PMC7465273 DOI: 10.3390/children7080100] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/13/2020] [Accepted: 08/14/2020] [Indexed: 12/31/2022]
Abstract
The alveolar and vascular developmental arrest in the premature infants poses a major problem in the management of these infants. Although, with the current management, the survival rate has improved in these infants, but bronchopulmonary dysplasia (BPD) is a serious complication associated with a high mortality rate. During the neonatal developmental period, these infants are vulnerable to stress. Hypoxia, hyperoxia, and ventilation injury lead to oxidative and inflammatory stress, which induce further damage in the lung alveoli and vasculature. Development of pulmonary hypertension (PH) in infants with BPD worsens the prognosis. Despite considerable progress in the management of premature infants, therapy to prevent BPD is not yet available. Animal experiments have shown deregulation of multiple signaling factors such as transforming growth factorβ (TGFβ), connective tissue growth factor (CTGF), fibroblast growth factor 10 (FGF10), vascular endothelial growth factor (VEGF), caveolin-1, wingless & Int-1 (WNT)/β-catenin, and elastin in the pathogenesis of BPD. This article reviews the signaling pathways entailed in the pathogenesis of BPD associated with PH and the possible management.
Collapse
|
14
|
Yan W, Jiang M, Zheng J. Identification of key pathways and differentially expressed genes in bronchopulmonary dysplasia using bioinformatics analysis. Biotechnol Lett 2020; 42:2569-2580. [PMID: 32803430 DOI: 10.1007/s10529-020-02986-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/08/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES The objective of this study was to discover unknown differentially expressed genes (DEGs) associated with bronchopulmonary dysplasia (BPD), analyze their functions and enriched signaling pathways, and identify hub genes correlating with BPD incidence and evolvement. RESULTS Of 1289 DEGs identified, 568 were downregulated and 721 were upregulated. The DEGs were mainly associated with oxidative stress, angiogenesis, extracellular matrix, inflammation, cell cycle, and protein binding. Eight DEGs were identified as hub genes, including C-X-C motif chemokine ligand 5 (Cxcl5), connective tissue growth factor (Ctgf), interleukin 6 (IL6), matrix metallopeptidase 9 (Mmp9), mitogen-activated protein kinase 14 (Mapk14), platelet and endothelial cell adhesion molecule 1 (Pecam1), TIMP metallopeptidase inhibitor 1 (Timp1), and TIMP metallopeptidase inhibitor 2 (Timp2). IL6 mRNA and protein expression levels were significantly increased in the peripheral blood of neonates with BPD. CONCLUSIONS Hence, BPD involves complex biological changes. Our findings indicate that inflammation and angiogenesis may play major roles in BPD pathogenesis and that IL6 has the potential to serve as a biomarker for early BPD diagnosis.
Collapse
Affiliation(s)
- Weiheng Yan
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China.,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Miaomiao Jiang
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China.,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Jun Zheng
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China. .,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China.
| |
Collapse
|
15
|
Falke LL, He N, Chuva de Sousa Lopes SM, Broekhuizen R, Lyons K, Nguyen TQ, Goldschmeding R. Correction to: FoxD1-driven CCN2 deletion causes axial skeletal deformities, pulmonary hypoplasia, and neonatal asphyctic death. J Cell Commun Signal 2020; 14:47-52. [PMID: 32291573 DOI: 10.1007/s12079-020-00559-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pulmonary fibrosis is a severely disabling disease often leading to death. CCN2 (Cellular Communication Network factor 2, also known as CTGF) is a known mediator of fibrosis and clinical trials studying anti-CCN2 efficacy in pulmonary fibrosis are currently underway. Fork head box D1 (FoxD1) transcription factor is transiently expressed in several mesenchymal cell types, including those of fetal lungs. Differentiation of FoxD1-progenitor derived pericytes into myofibroblasts involves CCN2 expression and contributes importantly to maladaptive tissue remodeling in for example kidney and lung fibrosis models. To generate a model for studying the contribution of CCN2 expression in FoxD1-progenitor derived cells to development of fibrotic tissue remodeling, we set out to establish a FoxD1Cre - CCN2flox/flox mouse colony. However, all double-transgenic mice died soon after birth due to asphyxia. Histopathological examination revealed a reduction in alveolar space and lung weight, and subtle axial (thoracic and cervical) skeletal deformities. Together with the previously reported association of a FoxD1 containing locus with human adolescent idiopathic scoliosis, our data suggest that the fatal pulmonary hypoplasia resulting from selective deletion of CCN2 from FoxD1-progenitor derived mesenchymal cells developed secondary to impaired breathing movements due to aberrant axial skeletogenesis.
Collapse
Affiliation(s)
- Lucas L Falke
- Department. Pathology, University Medical Centre Utrecht, Heidelberglaan, 100 3584 CX, Utrecht, The Netherlands.,Department Internal medicine, Diakonessenhuis, Utrecht, the Netherlands
| | - Nannan He
- Department Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | | | - Roel Broekhuizen
- Department. Pathology, University Medical Centre Utrecht, Heidelberglaan, 100 3584 CX, Utrecht, The Netherlands
| | - Karen Lyons
- Department Orthopedic Surgery, University of California, Oakland, CA, USA.,Department Molecular Cell and Developmental Biology, University of California, Oakland, CA, USA
| | - Tri Q Nguyen
- Department. Pathology, University Medical Centre Utrecht, Heidelberglaan, 100 3584 CX, Utrecht, The Netherlands
| | - Roel Goldschmeding
- Department. Pathology, University Medical Centre Utrecht, Heidelberglaan, 100 3584 CX, Utrecht, The Netherlands.
| |
Collapse
|
16
|
CCN-Based Therapeutic Peptides Modify Pancreatic Ductal Adenocarcinoma Microenvironment and Decrease Tumor Growth in Combination with Chemotherapy. Cells 2020; 9:cells9040952. [PMID: 32294968 PMCID: PMC7226963 DOI: 10.3390/cells9040952] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/07/2020] [Accepted: 04/09/2020] [Indexed: 12/23/2022] Open
Abstract
The prominent desmoplastic stroma of pancreatic ductal adenocarcinoma (PDAC) is a determinant factor in tumor progression and a major barrier to the access of chemotherapy. The PDAC microenvironment therefore appears to be a promising therapeutic target. CCN2/CTGF is a profibrotic matricellular protein, highly present in the PDAC microenvironment and associated with disease progression. Here we have investigated the therapeutic value of the CCN2-targeting BLR100 and BLR200, two modified synthetic peptides derived from active regions of CCN3, an endogenous inhibitor of CCN2. In a murine orthotopic PDAC model, the two peptides, administered as monotherapy at low doses (approximating physiological levels of CCN3), had tumor inhibitory activity that increased with the dose. The peptides affected the tumor microenvironment, inhibiting fibrosis and vessel formation and reducing necrosis. Both peptides were active in preventing ascites formation. An increased activity was obtained in combination regimens, administering BLR100 or BLR200 with the chemotherapeutic drug gemcitabine. Pharmacokinetic analysis indicated that the improved activity of the combination was not mainly determined by the substantial increase in gemcitabine delivery to tumors, suggesting other effects on the tumor microenvironment. The beneficial remodeling of the tumor stroma supports the potential value of these CCN3-derived peptides for targeting pathways regulated by CCN2 in PDAC.
Collapse
|
17
|
Falke LL, He N, Chuva de Sousa Lopes SM, Broekhuizen R, Lyons K, Nguyen TQ, Goldschmeding R. FoxD1-driven CCN2 deletion causes axial skeletal deformities, pulmonary hypoplasia, and neonatal asphyctic death. J Cell Commun Signal 2020; 13:573-577. [PMID: 32020419 DOI: 10.1007/s12079-020-00549-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 01/19/2020] [Indexed: 02/06/2023] Open
Abstract
Pulmonary fibrosis is a severely disabling disease often leading to death. CCN2 (Cellular Communication Network factor 2, also known as CTGF) is a known mediator of fibrosis and clinical trials studying anti-CCN2 efficacy in pulmonary fibrosis are currently underway. Fork head box D1 (FoxD1) transcription factor is transiently expressed in several mesenchymal cell types, including those of fetal lungs. Differentiation of FoxD1-progenitor derived pericytes into myofibroblasts involves CCN2 expression and contributes importantly to maladaptive tissue remodeling in e.g. kidney and lung fibrosis models. To generate a model for studying the contribution of CCN2 expression in FoxD1-progenitor derived cells to development of fibrotic tissue remodeling, we set out to establish a FoxD1Cre - CCN2flox/flox mouse colony. However, all double-transgenic mice died soon after birth due to asphyxia. Histopathological examination revealed a reduction in alveolar space and lung weight, and subtle axial (thoracic and cervical) skeletal deformities. Together with the previously reported association of a FoxD1 containing locus with human adolescent idiopathic scoliosis, our data suggest that the development of fatal pulmonary hypoplasia caused by selective deletion of CCN2 from FoxD1-progenitor derived mesenchymal cells was secondary to aberrant axial skeletogenesis.
Collapse
Affiliation(s)
- Lucas L Falke
- Deparment Pathology, University Medical Centre Utrecht, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands.,Department Internal medicine, Diakonessenhuis, Utrecht, the Netherlands
| | - Nannan He
- Department Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | | | - Roel Broekhuizen
- Deparment Pathology, University Medical Centre Utrecht, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Karen Lyons
- Department Orthopedic Surgery, University of California, Berkeley, CA, USA.,Department Molecular Cell and Developmental Biology, University of California, Berkeley, CA, USA
| | - Tri Q Nguyen
- Deparment Pathology, University Medical Centre Utrecht, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands
| | - Roel Goldschmeding
- Deparment Pathology, University Medical Centre Utrecht, Heidelberglaan 100, 3584, CX, Utrecht, The Netherlands.
| |
Collapse
|
18
|
El-Saie A, Shivanna B. Novel Strategies to Reduce Pulmonary Hypertension in Infants With Bronchopulmonary Dysplasia. Front Pediatr 2020; 8:201. [PMID: 32457857 PMCID: PMC7225259 DOI: 10.3389/fped.2020.00201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/02/2020] [Indexed: 01/10/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a developmental lung disorder of preterm infants primarily caused by the failure of host defense mechanisms to prevent tissue injury and facilitate repair. This disorder is the most common complication of premature birth, and its incidence remains unchanged over the past few decades. Additionally, BPD increases long-term cardiopulmonary and neurodevelopmental morbidities of preterm infants. Pulmonary hypertension (PH) is a common morbidity of BPD. Importantly, the presence of PH increases both the short- and long-term morbidities and mortality in BPD infants. Further, there are no curative therapies for this complex disease. Besides providing an overview of the pathogenesis and diagnosis of PH associated with BPD, we have attempted to comprehensively review and summarize the current literature on the interventions to prevent and/or mitigate BPD and PH in preclinical studies. Our goal was to provide insight into the therapies that have a high translational potential to meaningfully manage BPD patients with PH.
Collapse
Affiliation(s)
- Ahmed El-Saie
- Department of Pediatrics, Section of Neonatology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Binoy Shivanna
- Department of Pediatrics, Section of Neonatology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| |
Collapse
|
19
|
Lingzhi Z, Meirong L, Xiaobing F. Biological approaches for hypertrophic scars. Int Wound J 2019; 17:405-418. [PMID: 31860941 DOI: 10.1111/iwj.13286] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022] Open
Abstract
Scar formation is usually the pathological consequence of skin trauma. And hypertrophic scars (HSs) frequently occur in people after being injured deeply. HSs are unusually considered as the result of tissue contraction and excessive extracellular matrix component deposition. Myofibroblasts, as the effector cells, mainly differentiated from fibroblasts, play the crucial role in the pathophysiology of HSs. A number of growth factors, inflammatory cytokines involved in the process of HS occurrence. Currently, with in-depth exploration and clinical research of HSs, various creative and effective treatments budded. In here, we summarize the progress in the molecular mechanism of HSs, and review the available biotherapeutic methods for their pathophysiological characteristics. Additionally, we further prospected that the comprehensive therapy may be more suitable for HS treatment.
Collapse
Affiliation(s)
- Zhong Lingzhi
- Institute of Basic Medical Science, Chinese PLA General Hospital, Beijing, China
| | - Li Meirong
- Institute of Basic Medical Science, Chinese PLA General Hospital, Beijing, China.,Central Laboratory, Trauma Treatment Center, Chinese PLA General Hospital Hainan Branch, Sanya, China
| | - Fu Xiaobing
- Institute of Basic Medical Science, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
20
|
Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
Collapse
Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| |
Collapse
|