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1.
Aging (Albany NY) ; 16(5): 4378-4395, 2024 02 23.
Article in English | MEDLINE | ID: mdl-38407971

ABSTRACT

Lung adenocarcinoma (LUAD) is one of the most common malignant tumors worldwide. Small Ubiquitin-like Modifier (SUMO)-ylation plays a crucial role in tumorigenesis. However, the SUMOylation pathway landscape and its clinical implications in LUAD remain unclear. Here, we analyzed genes involved in the SUMOylation pathway in LUAD and constructed a SUMOylation pathway signature (SUMOPS) using the LASSO-Cox regression model, validated in independent cohorts. Our analysis revealed significant dysregulation of SUMOylation-related genes in LUAD, comprising of favorable or unfavorable prognostic factors. The SUMOPS model was associated with established molecular and histological subtypes of LUAD, highlighting its clinical relevance. The SUMOPS stratified LUAD patients into SUMOPS-high and SUMOPS-low subtypes with distinct survival outcomes and adjuvant chemotherapy responses. The SUMOPS-low subtype showed favorable responses to adjuvant chemotherapy. The correlations between SUMOPS scores and immune cell infiltration suggested that patients with the SUMOPS-high subtype exhibited favorable immune profiles for immune checkpoint inhibitor (ICI) treatment. Additionally, we identified UBA2 as a key SUMOylation-related gene with an increased expression and a poor prognosis in LUAD. Cell function experiment confirmed the role of UBA2 in promoting LUAD cell proliferation, invasion, and migration. These findings provide valuable insights into the SUMOylation pathway and its prognostic implications in LUAD, paving the way for personalized treatment strategies and the development of novel therapeutic targets.


Subject(s)
Adenocarcinoma of Lung , Lung Neoplasms , Humans , Sumoylation , Prognosis , Immunotherapy , Adenocarcinoma of Lung/drug therapy , Adenocarcinoma of Lung/genetics , Lung Neoplasms/drug therapy , Lung Neoplasms/genetics , Ubiquitin-Activating Enzymes/genetics
2.
Altern Ther Health Med ; 29(8): 320-323, 2023 Nov.
Article in English | MEDLINE | ID: mdl-37632955

ABSTRACT

IgG4-related disease (IgG4-RD) is a systemic autoimmune disease characterized by the infiltration of a large number of IgG4+ plasma cells, neoplastic lesions in the affected tissues, and a sharp increase in the concentration of serum IgG4. IgG4-RD is a rare and novel disease involving multiple organs with various clinical manifestations. Understanding and studying the pulmonary manifestations of IgG4-RD is critical for improving diagnosis, treatment, and prognosis. However, lung involvement alone is less common. Here we present a rare case of IgG4-related lung disease (IgG4-RLD) to show the variable manifestations of this disease in the lungs and review the relevant literature.


Subject(s)
Autoimmune Diseases , Immunoglobulin G4-Related Disease , Lung Diseases , Humans , Immunoglobulin G4-Related Disease/diagnosis , Immunoglobulin G4-Related Disease/pathology , Lung , Lung Diseases/diagnosis , Lung Diseases/drug therapy , Prognosis , Immunoglobulin G , Autoimmune Diseases/diagnosis , Autoimmune Diseases/drug therapy
3.
J Thorac Dis ; 15(4): 1892-1900, 2023 Apr 28.
Article in English | MEDLINE | ID: mdl-37197527

ABSTRACT

Background: Programmed cell death-ligand 1 (PD-L1) expression and other biomarkers are not completely reliable predictors of the response to checkpoint inhibitors in patients with advanced non-small cell lung cancer (NSCLC). We investigated the value of peripheral serological inflammatory indicators and their combination in predicting the prognosis of patients with advanced NSCLC treated with checkpoint inhibitors. Methods: This study retrospectively analyzed 116 NSCLC patients treated with anti-programmed cell death protein 1 (PD-1)/PD-L1 monoclonal antibodies. Clinical data of the patients were collected before treatment. X-tile plots determined the optimal cut-point for C-reactive protein (CRP) and lactate dehydrogenase (LDH). A survival analysis was performed using the Kaplan-Meier method. Multi-factor Cox regression analysis was used to evaluate the statistically significant factors identified in the univariate analysis. Results: The X-tile plots show the cut-points of CRP and LDH were 8 mg/L and 312 U/L, respectively. Univariate analyses showed high baseline serum LDH and low CRP levels were associated with adverse progression-free survival (PFS). Multivariate analyses indicated that CRP (HR, 0.214, 95% CI: 0.053-0.857, P=0.029) could be a predictive indicator for PFS. In addition, we evaluated the combination of CRP and LDH, and univariate analyses showed that patients with high CRP and low LDH exhibited significantly better PFS than those in the other groups. Conclusions: Baseline levels of serum CRP and LDH have the potential to become a convenient clinical tool to predict response to immunotherapy in advanced non-small cell lung cancer.

4.
J Thorac Dis ; 15(1): 112-122, 2023 Jan 31.
Article in English | MEDLINE | ID: mdl-36794146

ABSTRACT

Background: The usefulness of metagenomic next-generation sequencing (mNGS) in identifying the prognosis of lung cancer with chromosomal instability (CIN) remains unclear. We aimed to analyze clinical characteristics and prognosis of patients in patients harboring CIN. Methods: This retrospective cohort study included 668 patients diagnosed with suspected pulmonary infection or lung cancer whose samples underwent mNGS detection from January 2021 to January 2022. Difference between clinical characteristics were calculated by the Student's t-test and the chi-square test. The subjects were followed-up from registered to September 2022. Survival curves were analyzed by the Kaplan-Meier method. Results: Of 619 bronchoalveolar lavage fluid (BALF) samples collected by bronchoscopy, 30 CIN-positive samples were confirmed as malignant on histopathology, with a sensitivity of 61.22%, a specificity of 99.65%, and an 83.17% accuracy [cut-off values were established by the receiver operating characteristic (ROC) area under the curve (AUC) =0.804]. In 42 patients with lung cancer, mNGS detected 24 patients as CIN-positive and 18 as CIN-negative. There were no differences between two groups including ages, pathologic types, stage and metastases. In 25 cases, we detected 523 chromosomal copy number variants (CNVs) with forms including duplication (dup), deletion (del), mosaic (mos), and whole chromosome amplification or loss. A total of 243 duplication variants and 192 deletion variants occurred in all chromosomes. Duplications occurred in most chromosomes except for Chr9 and Chr13, in which CNV tended to delete. The median overall survival (OS) in patients with Chr5p15 duplication was 32.4 months [95% confidence interval (CI), 10.35-54.45 months]. The median OS differed significantly between the 5p15dup+ group and the combined group (32.4 vs. 8.63 months, P=0.049). In 29 patients with unresected lung cancer, the median OS of 18 cases in the CIN-positive group was 32.4 months (95% CI, 14.2-50.6 months) and the median OS of 11 cases in the CIN-negative group was 35.63 months (95% CI, 21.64-49.62 months; Wilcoxon, P=0.227). Conclusions: Various forms of CIN detected by mNGS may predict prognosis of patients with lung cancer differentially. CIN with duplication or deletion deserves further study to guide clinical treatment.

6.
Transl Lung Cancer Res ; 11(2): 238-249, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35280318

ABSTRACT

Background: The aim of this study was to investigate the clinical features, immunohistochemistry (IHC), compound mutation, and prognosis of patients with non-small cell lung cancer (NSCLC) harboring exon 19 deletion-insertion mutations. Methods: This retrospective analysis included 4,666 NSCLC patients harboring epidermal growth factor receptor (EGFR) mutations in a multi-center study from January 2017 to December 2020, and 69 patients with EGFR exon 19 deletion-insertions were taken to account. Next-generation sequencing (NGS) was used to detect the subtype of EGFR exon 19 deletion-insertions. These mutations were correlated with clinical features, immunophenotype and molecular characteristics of tumors and outcomes of patients. Results: Sixty-nine patients with EGFR exon 19 deletion-insertions were analyzed in this study, comprising 24 cases (34.8%) with L747_P753delinsS, 9 cases (13.1%) with L747_A750delinsP, both 5 cases (7.2%) in E746_A750delinsQP, E746_S752delinsV and both 4 cases (5.8%) in E746_T751delinsA and L747_T751delinsP. Twenty-nine males (42%) and 40 females (58%), with a median age of 59.7 years; 12 (21.7%) participants were smokers and 54 (78.3%) were nonsmokers. The compound mutations were tumor protein 53 (TP53) (45.83%), phosphoinositide-3-kinase (PIK3CA) (11.59%), and almost 16.67% in retinoblastoma 1 (RB1), melanocyte stimulating hormone (MSH), and myelocytomatosis (MYC). The best overall response was complete response (CR) in 47.8% of patients, partial response (PR) in 33.3% and stable disease (SD) in 13.1% of patients. Correlation between immunoreactivity of Napsin A, thyroid transcription factor (TTF), cytokeratin (CK7), surfactant proteins B (SPB), and the subtypes of EGFR exon 19 deletion-insertion was significantly statistically different (P<0.05). The disease control rate (DCR) was 29%. The median progression-free survival (mPFS) and 95% confidence interval (CI) of exon 19 deletion-insertion subtypes were 14.821 (9.917 to 19.726) months for L747_P753delinsS, 23.500 (15.877 to 31.123) months for L747_A750delinsP, 26.667 (11.731 to 41.603) months for L747_T751delinsP, and 11.713 (7.786 to 15.639) months for the others. Patients receiving treatment with 3rd generation tyrosine kinase inhibitors (TKI) had the shortest progression-free survival (PFS) (median: 7.179, 95% CI: 3.969-10.388). Conclusions: The subtypes of exon 19 deletion-insertion exhibited different clinical characteristics compared with other common mutations. Our finding argued in favor of analyzing the correlation between immunoreactivity and the subtypes of EGFR exon 19 deletion-insertion. The EGFR exon 19 deletion-insertion mutations exhibited limited sensitivity to 3rd generation TKI. Moreover, in light of therapeutic effect for the subtype, L747_T751delinsP achieved longer PFS.

7.
Mol Med Rep ; 23(6)2021 Jun.
Article in English | MEDLINE | ID: mdl-33876628

ABSTRACT

Following the publication of the above paper, a concerned reader drew to the Editor's attention that several figures (Figs. 3, 4, 7 and 10) contained apparent anomalies, including repeated patternings of data within the same figure panels. Furthermore, Fig. 3 contained data that bore striking similarities to data published in Fig. 6 in another paper published in Molecular Medicine Reports, which has now been retracted [Zhu Y­Y, Huang H­Y and Wu Y­L: Anticancer and apoptotic activities of oleanolic acid are mediated through cell cycle arrest and disruption of mitochondrial membrane potential in HepG2 human hepatocellular carcinoma cells. Mol Med Rep 12: 5012­5018, 2015]. After having conducted an independent investigation in the Editorial Office, the Editor of Molecular Medicine Reports has determined that the above paper should be retracted from the Journal on account of a lack of confidence concerning the originality and the authenticity of the data. The authors were asked for an explanation to account for these concerns, but the Editorial Office never received any reply. The Editor regrets any inconvenience that has been caused to the readership of the Journal. [the original article was published in Molecular Medicine Reports 13: 4541­4548, 2016; DOI: 10.3892/mmr.2016.5105].

8.
Am J Transl Res ; 11(4): 2463-2469, 2019.
Article in English | MEDLINE | ID: mdl-31105853

ABSTRACT

Objective: The effects and enhancement of catalpol (CP) on specific immune therapy (SIT) were investigated with an established animal model associated with bronchial asthma. Materials and methods: A total of 50 adults BALB/c mice were randomly divided into five groups with 10 mice in each group. These groups are control group, model group, CP group, SIT group and CP/SIT joint group. The mice were sensitized and challenged with OVA and Bronchoalveolar lavage fluid (BALF) and peripheral blood were obtained, the cell counts and the levels of cytokines (IL-1, IL-4, IFN-γ) in BALF were detected using ELISA methods. Results: The total number of cells in BALF of the group treated with CP/SIT joint group was significantly lower than the other experimental groups. Furthermore the eosinophils of the mice were dramatically reduced comparing the other experimental groups, the cytokines IL-1 and IL-4 display the similar tendency, but the IFN-γ concentration for the experimental groups was higher than the model group. After the therapy using CP, SIT and a combination of CP and SIT, asthma-associated inflammation was inhibited, IL-4 level was decreased and IFN-γ level was increased. In addition, the expression of TLR-4 protein in peripheral blood was detected by Western Blot method. Conclusions: In summary, CP can enhance the treating effect of SIT and the joint treatment by CP/SIT might be a potential method for clinical treatment of asthma, the mechanism is related to the inhibition of TLR-4 signaling pathway.

9.
Mol Med Rep ; 13(6): 4541-8, 2016 Jun.
Article in English | MEDLINE | ID: mdl-27081915

ABSTRACT

The aim of the present study was to investigate the in vitro and in vivo anticancer and apoptotic effects of taraxerol acetate in U87 human glioblastoma cells. The effects on cell cycle phase distribution, cell cycle-associated proteins, autophagy, DNA fragmentation and cell migration were assessed. Cell viability was determined using the MTT assay, and phase contrast and fluorescence microscopy was utilized to determine the viability and apoptotic morphological features of the U87 cells. Flow cytometry using propidium iodide and Annexin V-fluorescein isothiocyanate demonstrated the effect of taraxerol acetate on the cell cycle phase distribution and apoptosis induction. Western blot analysis was performed to investigate the effect of the taraxerol acetate on cell cycle­associated proteins and autophagy­linked LC3B­II proteins. The results demonstrated that taraxerol acetate induced dose­ and time­dependent cytotoxic effects in the U87 cells. Apoptotic induction following taraxerol acetate treatment was observed and the percentage of apoptotic cells increased from 7.3% in the control cells, to 16.1, 44.1 and 76.7% in the 10, 50 and 150 µM taraxerol acetate­treated cells, respectively. Furthermore, taraxerol acetate treatment led to sub­G1 cell cycle arrest with a corresponding decrease in the number of S­phase cells. DNA fragments were observed as a result of the gel electrophoresis experiment following taraxerol acetate treatment. To investigate the inhibitory effects of taraxerol acetate on the migration of U87 cell, a wound healing assay was conducted. The number of cells that migrated to the scratched area decreased significantly following treatment with taraxerol acetate. In addition, taraxerol acetate inhibited tumor growth in a mouse xenograft model. Administration of 0.25 and 0.75 µg/g taraxerol acetate reduced the tumor weight from 1.2 g in the phosphate­buffered saline (PBS)­treated group (control) to 0.81 and 0.42 g, respectively. Similarly, 0.25 and 0.75 µg/g taraxerol acetate injection reduced the tumor volume from 1.3 cm3 in the PBS-treated group (control) to 0.67 and 0.25 cm3, respectively.


Subject(s)
Antineoplastic Agents, Phytogenic/pharmacology , Apoptosis/drug effects , Autophagy/drug effects , Cell Cycle Checkpoints/drug effects , Cell Movement/drug effects , Triterpenes/pharmacology , Animals , Cell Cycle Proteins/genetics , Cell Cycle Proteins/metabolism , Cell Line, Tumor , Cell Proliferation/drug effects , Cell Survival/drug effects , DNA Fragmentation/drug effects , Disease Models, Animal , Female , Gene Expression , Glioblastoma/drug therapy , Glioblastoma/genetics , Glioblastoma/metabolism , Glioblastoma/pathology , Humans , Mice , Tumor Burden/drug effects , Xenograft Model Antitumor Assays
10.
Biomed Res Int ; 2015: 257153, 2015.
Article in English | MEDLINE | ID: mdl-26558260

ABSTRACT

OBJECT: The aim of this report was to explore the clinical presentation, radiological features, treatment methods, and outcome of micro-AVMs presenting with intracerebral hemorrhage. METHODS: The clinical data, radiological features, treatment, and follow-up results for a consecutive series of 13 cases with micro-AVMs were retrospectively analyzed. RESULTS: All 13 patients presented with intracerebral hemorrhage. Ten cases were confirmed by enhanced thin layer CT scanning and CTA, and the other 3 cases were confirmed by DSA. Treatment consisted of surgical removal in 10 cases, endovascular embolization in 1, and radiosurgery in 2. The modified GOS score was achieved in the third month after discharge: 10 cases were rated with 5 points (good recovery), 1 case was rated with 4 points (mild disability), and 2 cases were rated with 3 points (severe disability). During follow-up, No case of rebleeding was reported. CONCLUSIONS: Intracerebral hemorrhage is the main clinical manifestation of micro-AVMs. It is beneficial to find a tiny nidus of dense vessels located on hematoma wall on enhanced thin layer CT scanning for a clear diagnosis and to detect any abnormal feeding artery or venous drainage for an indirect diagnostic evidence. Resection is the main method of treatment for micro-AVMs.


Subject(s)
Cerebral Hemorrhage , Intracranial Arteriovenous Malformations , Adolescent , Adult , Cerebral Hemorrhage/diagnosis , Cerebral Hemorrhage/diagnostic imaging , Cerebral Hemorrhage/etiology , Child , Humans , Intracranial Arteriovenous Malformations/complications , Intracranial Arteriovenous Malformations/diagnosis , Intracranial Arteriovenous Malformations/physiopathology , Intracranial Arteriovenous Malformations/therapy , Middle Aged , Radiography , Retrospective Studies , Young Adult
11.
Am J Transl Res ; 7(7): 1271-9, 2015.
Article in English | MEDLINE | ID: mdl-26328011

ABSTRACT

MicroRNAs (miRNAs) are a class of small non-coding RNAs that play key roles in cancer development and progression. Therefore, the discovery of miRNAs may provide a new and powerful tool for understanding the mechanism of carcinogenesis. In the present study, we aimed to investigate the functional significance of miR-630 and to identify its possible target genes in human non-small cell lung cancer (NSCLC). Our results showed that miR-630 was significantly down-regulated in NSCLC tissues and cell lines. The enforced expression of miR-630 was able to inhibit cell proliferation, migration, and invasion of NSCLC cells. Moreover, our results further revealed that LMO3, a nuclear LIM-only proteins, was identified as a target of miR-630. Restoration of LMO3 remarkably reversed the tumor-suppressive effects of miR-630 on cell proliferation, migration, and invasion in NSCLC cells. Therefore, we demonstrated that miR-630 suppressed the proliferation, migration, and invasion of NSCLC cells by down-regulating LMO3 expression, suggesting miR-630 as a potential therapeutic target for the treatment of human NSCLC in the future.

12.
J Asthma ; 50(2): 133-40, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23157452

ABSTRACT

OBJECTIVES: 1,25-Dihydroxyvitamin D(3) (1,25-(OH)(2)D(3)) has immune- and inflammation-modulating properties in asthma, but its possible effects on asthmatic airway remodeling remain uncertain. In this study, we investigated the effects of 1,25-(OH)(2)D(3) on airway remodeling in a murine model of chronic asthma and investigated its role in regulating nuclear factor-κB (NF-κB) activation. METHODS: BALB/c mice were sensitized to ovalbumin (OVA) and subsequently exposed to intranasal OVA challenges for 9 weeks. Some mice also received an intraperitoneal injection of 1,25-(OH)(2)D(3) at the time of challenge. At the end of the challenge period, mice were evaluated for chronic airway inflammation and airway remodeling. Nuclear translocation of NF-κB p65 in lung tissue was examined by Western blot. Inhibitor of NF-κB alpha (IκBα) expression was determined by real-time quantitative Reverse Transcription Polymerase Chain Reaction (RT-PCR) and Western blot. Phosphorylated IκBα protein expression was also determined by Western blot. RESULTS: 1,25-(OH)(2)D(3) treatment reduced OVA-induced chronic inflammation in lung tissue and attenuated established structural changes of the airways, including subepithelial collagen deposition, goblet cell hyperplasia, and increased airway smooth muscle mass. 1,25-(OH)(2)D(3) also inhibited the nuclear translocation of NF-κB p65 in lung tissue. Concurrently, 1,25-(OH)(2)D(3) induced increased IκBα protein levels via inducing increased IκBα mRNA levels and decreased IκBα phosphorylation. CONCLUSION: 1,25-(OH)(2)D(3) could attenuate asthmatic airway remodeling and its inhibition of NF-κB activation may underlie this protective effect.


Subject(s)
Airway Remodeling/drug effects , Asthma/pathology , Calcitriol/pharmacology , Airway Remodeling/immunology , Animals , Asthma/drug therapy , Asthma/immunology , Blotting, Western , Chronic Disease , Disease Models, Animal , I-kappa B Proteins/genetics , I-kappa B Proteins/immunology , Immunohistochemistry , Male , Mice , Mice, Inbred BALB C , NF-KappaB Inhibitor alpha , Ovalbumin/immunology , RNA, Messenger/chemistry , RNA, Messenger/genetics , Reverse Transcriptase Polymerase Chain Reaction , Transcription Factor RelA/antagonists & inhibitors , Transcription Factor RelA/immunology
13.
Zhonghua Jie He He Hu Xi Za Zhi ; 34(6): 438-41, 2011 Jun.
Article in Chinese | MEDLINE | ID: mdl-21781516

ABSTRACT

OBJECTIVE: To investigate the effects of 1,25-(OH)(2)D(3) on the proliferation of passively sensitized human airway smooth muscle cells (HASMCs) and their expressions of MMP-9 and a disintegrin and metalloprotease 33(ADAM33). METHODS: HASMCs were passively sensitized with 10% serum from asthmatic patients. MTT colorimetry assay was used to examine the effect of 1,25-(OH)(2)D(3) on cell proliferation at different concentrations (10(-10) mol/L, 10(-9) mol/L, 10(-8) mol/L, 10(-7) mol/L).By this way, its optimal inhibitory concentration was determined. And then the effects of 1,25-(OH)(2)D(3) at the optimal concentration on cell proliferation was examined by the same MTT assay and cell cycle analysis by flow cytometry. The expressions of MMP-9 and ADAM33 in HASMCs were studied by real-time quantitative RT-PCR and Western blotting analysis. RESULTS: (1) Inhibition of cell proliferation by 1,25-(OH)(2)D(3) was barely detectable at 10(-10) mol/L. But with the increasing concentration ranging from 10(-9) mol/L to 10(-7) mol/L, 1,25-(OH)(2)D(3) markedly inhibited the cell proliferation concentration-dependently and reached the maximum effect at the concentration of 10(-7) mol/L. Accordingly, 10(-7) mol/L was chosen as the optimal concentration of 1,25-(OH)(2)D(3) for the following study. (2) At the concentration of 10(-7) mol/L, 1,25-(OH)(2)D(3) inhibited the cell proliferation of passively sensitized HASMCs in a time-dependent manner and hampered the G(1)/S transition. (3) 1,25-(OH)(2)D(3) pretreatment attenuated the MMP-9 and ADAM33 protein levels in passively sensitized HASMCs by (63.4 ± 3.6)% and (50.9 ± 2.9)%, respectively (P < 0.01). (4) 1,25-(OH)(2)D(3) significantly inhibited the MMP-9 and ADAM33 mRNA levels in passively sensitized HASMCs by (52.2 ± 2.5)% and (67.8 ± 3.2)%, respectively (P < 0.01). CONCLUSION: 1,25-(OH)(2)D(3) has a direct inhibitory effect on passively sensitized HASMCs in vitro, including the inhibition of cell proliferation and the expressions of MMP-9 and ADAM33, which maybe associated with the beneficial role of 1,25-(OH)(2)D(3) in the prevention and therapy of asthmatic airway remodeling.


Subject(s)
Asthma/pathology , Bronchi/drug effects , Calcitriol/pharmacology , Myocytes, Smooth Muscle/drug effects , ADAM Proteins/metabolism , Asthma/metabolism , Bronchi/cytology , Cell Proliferation/drug effects , Cells, Cultured , Disintegrins/metabolism , Humans , Matrix Metalloproteinase 9/metabolism , Myocytes, Smooth Muscle/metabolism , Signal Transduction
14.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(5): 498-9, 2008 May.
Article in Chinese | MEDLINE | ID: mdl-18466712

ABSTRACT

AIM: To study the inhibitory effect of huangqi and dangshen extraction (SQ) on angiogenesis induced by b-FGF. METHODS: Matrigel implant assay was used. Matrigel(500 microL) containing b-FGF and heparin was injected subcutaneously into the abdomens of mice and harvested 5 d later. The amount of hemoglobin and micro-vascular area present in the implant were measured and compared. The mice were given different dosage of SQ (experimental group) or the same volume of glucose (vehicle group) once a day by intraperitoneal injection. Inhibitory experiment started 3 d before Matrigel implant and continued until the end of study. RESULTS: SQ in lower dosage (< or = 50% V/V) increased hemoglobin content and micro-vascular area in Matrigel implant while SQ in higher dosage (> or = 60%, V/V) reduced hemoglobin content and micro-vascular area in Matrigel implant. The effect of enhance ment and inhibition was in a limited concentration-effect manner. CONCLUSION: SQ in different dosage has different effects on angiogenesis. We should use different dosage in different purpose.


Subject(s)
Angiogenesis Inhibitors/pharmacology , Blood Vessels/drug effects , Codonopsis/chemistry , Collagen/pharmacology , Drugs, Chinese Herbal/pharmacology , Laminin/pharmacology , Neoplasms/chemically induced , Neovascularization, Pathologic/chemically induced , Proteoglycans/pharmacology , Animals , Biocompatible Materials/adverse effects , Biocompatible Materials/pharmacology , Blood Vessels/physiology , Collagen/adverse effects , Disease Models, Animal , Drug Combinations , Laminin/adverse effects , Male , Mice , Mice, Inbred BALB C , Mice, Inbred C57BL , Neoplasms/physiopathology , Plant Extracts/pharmacology , Plants, Medicinal/chemistry , Proteoglycans/adverse effects
15.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(4): 375-7, 2008 Apr.
Article in Chinese | MEDLINE | ID: mdl-18394349

ABSTRACT

AIM: To study enhance effect of huangqi and dangshen extraction (Shenqi) on pacilitaxel inhibitory metastasis and angiogenesis on mouse Lewis lung carcinoma model. METHODS: Lewis lung carcinoma cells were inoculated into right hind footpad of C57BL/6 mice. Six hour after tumor inoculated, the mice were randomly divided into 3 groups.Shenqi (paclitaxel plus Shenqi) or paclitaxel was intraperitoneally injected in two group since the second day of the establishment of animal model. The third group simply administered with normal saline was set as placebo-control. Tumor volume, quantitation of microvessel density (MVD) in inoculated tumor, the number of metastasis in the lungs and survival analysis were compared in 3 groups. RESULTS: Paclitaxel plus Shenqi can effectively reduced MVD in inoculated tumor and the number of lung metastasis as compared with other two group (P<0.05). The survival time of Shenqi group was also significantly longer (P<0.05). Tumor volume was no statistical difference in three group (P>0.05). CONCLUSION: Shenqi can amplify the paclitaxel effect of anti-angiogenesis and anti-metastasis, enhances the survival time of mice bearing LLC, might has possible therapeutic applications in the treatment of lung cancer.


Subject(s)
Antineoplastic Agents, Phytogenic/therapeutic use , Carcinoma, Lewis Lung/drug therapy , Drugs, Chinese Herbal/therapeutic use , Lung Neoplasms/drug therapy , Neoplasm Metastasis/prevention & control , Neovascularization, Pathologic/prevention & control , Paclitaxel/therapeutic use , Animals , Antineoplastic Agents, Phytogenic/chemistry , Codonopsis/chemistry , Drugs, Chinese Herbal/chemistry , Kaplan-Meier Estimate , Lung Neoplasms/pathology , Mice , Mice, Inbred C57BL
16.
Respirology ; 12(4): 486-94, 2007 Jul.
Article in English | MEDLINE | ID: mdl-17587413

ABSTRACT

BACKGROUND AND OBJECTIVES: In asthma, airway smooth muscle cell (ASMC) hyperplasia plays an important role in airway remodelling. Increased expression of matrix metalloproteinases-9 (MMP-9), a disintegrin and metalloprotease 33 (ADAM33) in ASMCs are also relevant to asthmatic airway remodelling. 1,25-dihydroxyvitamin D(3) (1,25-(OH)(2)D(3)) has potent antiproliferative properties in vitro in various cell types; however, its role in ASMCs is not well understood. This study investigated the effect of 1,25-(OH)(2)D(3) on passively sensitized human bronchial (airway) smooth muscle cell (HASMC) proliferation and MMP-9 and ADAM33 expressions. METHODS: The effect of 1,25-(OH)(2)D(3) on cell proliferation was examined by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium-bromide colorimetry assay; cell cycle analysis by flow cytometry; and immunocytochemical staining for proliferating cell nuclear antigen (PCNA). The expression of MMP-9 and ADAM33 in HASMCs was investigated by real-time quantitative PCR and Western Blot analysis. RESULTS: 1,25-(OH)(2)D(3) effectively suppressed passively sensitized HASMC proliferation, proliferating cell nuclear antigen expression and G(1)/S transition in HASMCs passively sensitized with asthmatic serum. Further analysis showed that 1,25-(OH)(2)D(3) significantly down-regulated the expressions of protein for MMP-9 and ADAM33, as well as their mRNA levels in passively sensitized HASMCs. CONCLUSIONS: 1,25-(OH)(2)D(3) has direct inhibitory effects on passively sensitized HASMCs in vitro, including inhibition of cell proliferation and expression of MMP-9 and ADAM33, suggesting a possible beneficial role for 1,25-(OH)(2)D(3) in preventing and treating asthmatic airway remodelling.


Subject(s)
Bronchi/cytology , Calcitriol/analogs & derivatives , Muscle, Smooth/cytology , ADAM Proteins/metabolism , Asthma/drug therapy , Asthma/physiopathology , Cell Cycle/physiology , Cell Proliferation/drug effects , Cells, Cultured , Down-Regulation/physiology , Gene Expression/drug effects , Humans , Immunohistochemistry , Matrix Metalloproteinase 9/metabolism , Oxygen Consumption , Polymerase Chain Reaction
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