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Cheng J, Chen J, Zhao Y, Yang J, Xue K, Wang Z. MicroRNA-761 suppresses remodeling of nasal mucosa and epithelial-mesenchymal transition in mice with chronic rhinosinusitis through LCN2. Stem Cell Res Ther 2020; 11:151. [PMID: 32272958 PMCID: PMC7147028 DOI: 10.1186/s13287-020-01598-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 01/15/2023] Open
Abstract
Background Chronic rhinosinusitis (CRS) is characterized by persistent symptomatic inflammation of the nasal passage and sinus mucosa. Various microRNAs (miRs) have been implicated in CRS. Hence, the current study was conducted to explore the effect of microRNA-761 (miR-761) on remodeling of nasal mucosa and epithelial–mesenchymal transition (EMT). Methods Bioinformatics analysis was initially performed to predict the differentially expressed genes (DEGs) associated with CRS. Gene targeting relationship between miR-761 and lipocalin 2 (LCN2) was analyzed by bioinformatics analysis and verified using dual-luciferase reporter gene assay. Histopathological analyses of the nasal mucosa tissues were conducted via hematoxylin–eosin (HE) and alcian blue (AB)-periodic acid Schiff (PAS) staining. ELISA was employed to determine the IL-8 and MMP-9 levels. To define downstream pathway of miR-761, levels of proteins related to LCN2/Twist1 signaling pathway were assessed. Additionally, the effects of miR-761 on EMT, proliferation, and apoptosis were determined. Results LCN2 was highly expressed in CRS. LCN2 was a target of miR-761. miR-761 overexpression or LCN2 silencing decreased IL-8 and MMP-9 levels and morphological changes in nasal epithelial tissue from CRS mice. Overexpressed miR-761 or silenced LCN2 decreased the expression of LCN2 and Twist1, indicating LCN2/Twist1 signaling pathway was inactivated. Moreover, miR-761 overexpression or LCN2 silencing reduced the expression of N-cadherin and vimentin, while increased that of E-cadherin, suggesting inhibition of EMT. Furthermore, miR-761 overexpression or LCN2 silencing promoted cell proliferation and inhibited cell apoptosis in CRS. Conclusion Taken together, miR-761 suppressed the remodeling of nasal mucosa through inhibition of LCN2 and the LCN2/Twist1 signaling pathway.
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Affiliation(s)
- Jinzhang Cheng
- Department of Otolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, No. 218, Ziqiang Street, Nanguan District, Changchun, 130041, Jilin Province, People's Republic of China
| | - Junjun Chen
- Department of Pharmacy, the Second Hospital of Jilin University, Changchun, 130041, People's Republic of China
| | - Yin Zhao
- Department of Otolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, No. 218, Ziqiang Street, Nanguan District, Changchun, 130041, Jilin Province, People's Republic of China
| | - Jingpu Yang
- Department of Otolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, No. 218, Ziqiang Street, Nanguan District, Changchun, 130041, Jilin Province, People's Republic of China
| | - Kai Xue
- Department of Otolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, No. 218, Ziqiang Street, Nanguan District, Changchun, 130041, Jilin Province, People's Republic of China
| | - Zonggui Wang
- Department of Otolaryngology Head and Neck Surgery, the Second Hospital of Jilin University, No. 218, Ziqiang Street, Nanguan District, Changchun, 130041, Jilin Province, People's Republic of China.
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Yin X, Huo Y, Liu L, Pan Y, Liu S, Wang R. Serum Levels and Placental Expression of NGAL in Gestational Diabetes Mellitus. Int J Endocrinol 2020; 2020:8760563. [PMID: 32377189 PMCID: PMC7199580 DOI: 10.1155/2020/8760563] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/17/2019] [Accepted: 12/09/2019] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES The aim was to investigate neutrophil gelatinase-associated lipocalin (NGAL) levels in the serum and term placentas and its potential role in gestational diabetes mellitus (GDM). METHODS A total of 49 GDM subjects and 39 age-matched women with normal pregnancies were recruited. We examined serum concentrations of NGAL and tumor necrosis factor-α (TNF-α) in maternal blood and cord blood and their expression levels in the term placentas and umbilical cord. RESULTS Serum NGAL levels were significantly higher in GDM patients than in normal pregnant controls both in the maternal blood (4.80 ± 1.99 vs. 3.66 ± 1.13, P=0.001) and the cord blood (4.70 ± 2.08 vs. 3.85 ± 1.44, P=0.027). Moreover, serum NGAL levels exhibited a positive correlation with various parameters of insulin resistance. Maternal serum NGAL levels positively correlated with the NGAL levels found in the cord blood of the control (r = 0.399, P=0.012) and the GDM subjects (r = 0.349, P=0.014). Finally, the expression of NGAL protein levels in the placenta (1.22 ± 0.39 vs. 0.65 ± 0.23, P < 0.001) and umbilical cord (0.65 ± 0.23 vs. 0.25 ± 0.10, P < 0.001) were higher in GDM women than those noted in the control subjects. In the GDM group, maternal serum NGAL levels exhibited a positive correlation with placental NGAL mRNA and protein levels (r = 0.848, P=0.008; r = 0.636, P=0.011, respectively). CONCLUSIONS NGAL may be an important adipokine involved in GDM and fetal development. The oversecretion of NGAL from the placenta may contribute to the elevated levels of serum NGAL in gestational diabetes mellitus.
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Affiliation(s)
- Xiaoqian Yin
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Yan Huo
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Li Liu
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Yixing Pan
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Suxin Liu
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Runfang Wang
- Department of Obstetrics & Gynecology, Hebei General Hospital, Shijiazhuang 050051, China
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De Marco C, Laudanna C, Rinaldo N, Oliveira DM, Ravo M, Weisz A, Ceccarelli M, Caira E, Rizzuto A, Zoppoli P, Malanga D, Viglietto G. Specific gene expression signatures induced by the multiple oncogenic alterations that occur within the PTEN/PI3K/AKT pathway in lung cancer. PLoS One 2017; 12:e0178865. [PMID: 28662101 PMCID: PMC5491004 DOI: 10.1371/journal.pone.0178865] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 05/19/2017] [Indexed: 01/04/2023] Open
Abstract
Hyperactivation of the phosphatydil-inositol-3' phosphate kinase (PI3K)/AKT pathway is observed in most NSCLCs, promoting proliferation, migration, invasion and resistance to therapy. AKT can be activated through several mechanisms that include loss of the negative regulator PTEN, activating mutations of the catalytic subunit of PI3K (PIK3CA) and/or mutations of AKT1 itself. However, number and identity of downstream targets of activated PI3K/AKT pathway are poorly defined. To identify the genes that are targets of constitutive PI3K/AKT signalling in lung cancer cells, we performed a comparative transcriptomic analysis of human lung epithelial cells (BEAS-2B) expressing active mutant AKT1 (AKT1-E17K), active mutant PIK3CA (PIK3CA-E545K) or that are silenced for PTEN. We found that, altogether, aberrant PI3K/AKT signalling in lung epithelial cells regulated the expression of 1,960/20,436 genes (9%), though only 30 differentially expressed genes (DEGs) (15 up-regulated, 12 down-regulated and 3 discordant) out of 20,436 that were common among BEAS-AKT1-E17K, BEAS-PIK3CA-E545K and BEAS-shPTEN cells (0.1%). Conversely, DEGs specific for mutant AKT1 were 133 (85 up-regulated; 48 down-regulated), DEGs specific for mutant PIK3CA were 502 (280 up-regulated; 222 down-regulated) and DEGs specific for PTEN loss were 1549 (799 up-regulated, 750 down-regulated). The results obtained from array analysis were confirmed by quantitative RT-PCR on selected up- and down-regulated genes (n = 10). Treatment of BEAS-C cells and the corresponding derivatives with pharmacological inhibitors of AKT (MK2206) or PI3K (LY294002) further validated the significance of our findings. Moreover, mRNA expression of selected DEGs (SGK1, IGFBP3, PEG10, GDF15, PTGES, S100P, respectively) correlated with the activation status of the PI3K/AKT pathway assessed by S473 phosphorylation in NSCLC cell lines (n = 6). Finally, we made use of Ingenuity Pathway Analysis (IPA) to investigate the relevant BioFunctions enriched by the costitutive activation of AKT1-, PI3K- or PTEN-dependent signalling in lung epithelial cells. Expectedly, the analysis of the DEGs common to all three alterations highlighted a group of BioFunctions that included Cell Proliferation of tumor cell lines (14 DEGs), Invasion of cells (10 DEGs) and Migration of tumour cell lines (10 DEGs), with a common core of 5 genes (ATF3, CDKN1A, GDF15, HBEGF and LCN2) that likely represent downstream effectors of the pro-oncogenic activities of PI3K/AKT signalling. Conversely, IPA analysis of exclusive DEGs led to the identification of different downstream effectors that are modulated by mutant AKT1 (TGFBR2, CTSZ, EMP1), mutant PIK3CA (CCND2, CDK2, IGFBP2, TRIB1) and PTEN loss (ASNS, FHL2). These findings not only shed light on the molecular mechanisms that are activated by aberrant signalling through the PI3K/AKT pathway in lung epithelial cells, but also contribute to the identification of previously unrecognised molecules whose regulation takes part in the development of lung cancer.
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Affiliation(s)
- Carmela De Marco
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Carmelo Laudanna
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Nicola Rinaldo
- Biogem scarl, Instituto di Rihe Genetiche "Gaetano Salvatore", Ariano Irpino, Italia
| | - Duarte Mendes Oliveira
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Maria Ravo
- Laboratorio di Medicina Molecolare e Genomica, Facoltà di Medicina e Chirurgia, Università di Salerno, Baronissi, Italia
| | - Alessandro Weisz
- Laboratorio di Medicina Molecolare e Genomica, Facoltà di Medicina e Chirurgia, Università di Salerno, Baronissi, Italia
| | - Michele Ceccarelli
- Dipartimento di Studi Biologici e Ambientali, Università del Sannio, Benevento, Italia
| | - Elvira Caira
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Antonia Rizzuto
- Dipartimento di Scienze Mediche e Chirurgiche, Università "Magna Graecia", Catanzaro, Italia
| | - Pietro Zoppoli
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Donatella Malanga
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia
| | - Giuseppe Viglietto
- Dipartimento di Medicina Sperimentale e Clinica, Università "Magna Graecia", Catanzaro, Italia.,Biogem scarl, Instituto di Rihe Genetiche "Gaetano Salvatore", Ariano Irpino, Italia
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Meng L, Wang M, Du Z, Fang Z, Wu B, Wu J, Xie W, Shen J, Zhu T, Xu X, Liao L, Xu L, Li E, Lan B. Cell Signaling Pathway in 12-O-Tetradecanoylphorbol-13-acetate-Induced LCN2 Gene Transcription in Esophageal Squamous Cell Carcinoma. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9592501. [PMID: 29098164 PMCID: PMC5642883 DOI: 10.1155/2017/9592501] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/22/2017] [Indexed: 02/06/2023]
Abstract
LCN2 is involved in various cellular functions, including transport of small hydrophobic molecules, protection of MMP9 from proteolytic degradation, and regulating innate immunity. LCN2 is elevated in multiple human cancers, frequently being associated with tumor size, stage, and invasiveness. Our previous studies have shown that LCN2 expression could be induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) in esophageal squamous cell carcinoma (ESCC) by the binding of five nucleoproteins (MISP, KLF10, KLF15, PPP1R18, and RXRβ) at a novel TPA-responsive element (TRE), at -152~-60 bp of the 5' flanking region of the LCN2 promoter. However, much is unknown about whether these proteins can respond to TPA stimulation to regulate LCN2 transactivation and which cell signaling pathways mediate this process. In this study, expression plasmids encoding these five nucleoproteins were stably transfected into EC109 cells. Then, stable transfectant was characterized by a Dual-Luciferase Reporter Assay System. RT-PCR, real-time PCR, western blotting, specific kinase inhibitor treatment, and bioinformatics analyses were applied in this study. We found that MISP, KLF10, KLF15, PPP1R18, and RXRβ proteins could strongly respond to TPA stimulation and activate LCN2 transcriptional expression. MEK, ERK, JNK, and P38 kinases were involved in the LCN2 transactivation. Furthermore, the MEK-ERK signal pathway plays a major role in this biological process but does not involve PKCα signaling.
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Affiliation(s)
- Lingying Meng
- Department of Cardiothoracic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
| | - Muting Wang
- Department of Cardiothoracic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
| | - Zepeng Du
- Department of Pathology, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
| | - Zhongmin Fang
- Department of Cardiothoracic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
| | - Bingli Wu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Jianyi Wu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Wenming Xie
- Network and Information Center, Shantou University Medical College, Shantou 515041, China
| | - Jian Shen
- Department of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Tianxiang Zhu
- Department of Cardiothoracic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
| | - XieE Xu
- Department of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Liandi Liao
- Department of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Liyan Xu
- Department of Oncologic Pathology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Enmin Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Bin Lan
- Department of Cardiothoracic Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, Guangdong 515041, China
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