Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 41
Filter
1.
Br J Radiol ; 97(1153): 228-236, 2024 Jan 23.
Article in English | MEDLINE | ID: mdl-38263817

ABSTRACT

OBJECTIVE: To establish a nomogram for predicting the pathologic complete response (pCR) in breast cancer (BC) patients after NAC by applying magnetic resonance imaging (MRI) and ultrasound (US). METHODS: A total of 607 LABC women who underwent NAC before surgery between January 2016 and June 2022 were retrospectively enrolled, and then were randomly divided into the training (n = 425) and test set (n = 182) with the ratio of 7:3. MRI and US variables were collected before and after NAC, as well as the clinicopathologic features. Univariate and multivariate logistic regression analyses were applied to confirm the potentially associated predictors of pCR. Finally, a nomogram was developed in the training set with its performance evaluated by the area under the receiver operating characteristics curve (ROC) and validated in the test set. RESULTS: Of the 607 patients, 108 (25.4%) achieved pCR. Hormone receptor negativity (odds ratio [OR], 0.3; P < .001), human epidermal growth factor receptor 2 positivity (OR, 2.7; P = .001), small tumour size at post-NAC US (OR, 1.0; P = .031), tumour size reduction ≥50% at MRI (OR, 9.8; P < .001), absence of enhancement in the tumour bed at post-NAC MRI (OR, 8.1; P = .003), and the increase of ADC value after NAC (OR, 0.3; P = .035) were all significantly associated with pCR. Incorporating the above variables, the nomogram showed a satisfactory performance with an AUC of 0.884. CONCLUSION: A nomogram including clinicopathologic variables and MRI and US characteristics shows preferable performance in predicting pCR. ADVANCES IN KNOWLEDGE: A nomogram incorporating MRI and US with clinicopathologic variables was developed to provide a brief and concise approach in predicting pCR to assist clinicians in making treatment decisions early.


Subject(s)
Breast Neoplasms , Female , Humans , Magnetic Resonance Imaging , Neoadjuvant Therapy , Nomograms , Retrospective Studies
2.
Anticancer Drugs ; 35(4): 371-376, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-38241197

ABSTRACT

To investigate the effects of tamoxifen (TAM) and toremifene (TOR) on hepatic function and serum lipid levels in breast cancer patients receiving adjuvant endocrine therapy. The clinical data of 597 early breast cancer patients treated at the First Affiliated Hospital of Nanjing Medical University between January 2016 and December 2022 were collected. All the patients received standard adjuvant endocrine therapy with TAM or TOR after chemotherapy. Hepatic function and serum lipid data of all patients before and at 6 months and 1, 2, and 3 years after the treatment were collected retrospectively and analyzed statistically. There: no negative effect on hepatic function was observed in patients treated with either TAM or TOR. The triglyceride levels in both groups increased during treatment, and the effect of TAM on improving total cholesterol levels was stronger. Total cholesterol levels were not affected by time or treatment regimen. The low-density lipoprotein cholesterol levels decreased in both groups, and the effect was similar between groups. TAM can decrease the high-density lipoprotein cholesterol levels, whereas TOR can increase the high-density lipoprotein cholesterol levels, and there was a significant difference between groups. In the postoperative adjuvant endocrine therapy, TOR and TAM will not negatively impact the hepatic function of breast cancer patients, and TOR is better than TAM in the management of serum lipids; therefore, it may be a better choice for clinical medication.


Subject(s)
Breast Neoplasms , Toremifene , Humans , Female , Toremifene/therapeutic use , Toremifene/pharmacology , Tamoxifen/pharmacology , Retrospective Studies , Antineoplastic Agents, Hormonal/adverse effects , Chemotherapy, Adjuvant , Adjuvants, Immunologic , Lipids/therapeutic use , Cholesterol , Lipoproteins, HDL/therapeutic use
3.
Chin Med J (Engl) ; 137(1): 105-114, 2024 Jan 05.
Article in English | MEDLINE | ID: mdl-38178324

ABSTRACT

BACKGROUND: Triple-negative breast cancer (TNBC) is a type of highly invasive breast cancer with a poor prognosis. According to new research, long noncoding RNAs (lncRNAs) play a significant role in the progression of cancer. Although the role of lncRNAs in breast cancer has been well reported, few studies have focused on TNBC. This study aimed to explore the biological function and clinical significance of forkhead box C1 promoter upstream transcript (FOXCUT) in triple-negative breast cancer. METHODS: Based on a bioinformatic analysis of the cancer genome atlas (TCGA) database, we detected that the lncRNA FOXCUT was overexpressed in TNBC tissues, which was further validated in an external cohort of tissues from the General Surgery Department of the First Affiliated Hospital of Nanjing Medical University. The functions of FOXCUT in proliferation, migration, and invasion were detected in vitro or in vivo. Luciferase assays and RNA immunoprecipitation (RIP) were performed to reveal that FOXCUT acted as a competitive endogenous RNA (ceRNA) for the microRNA miR-24-3p and consequently inhibited the degradation of p38. RESULTS: lncRNA FOXCUT was markedly highly expressed in breast cancer, which was associated with poor prognosis in some cases. Knockdown of FOXCUT significantly inhibited cancer growth and metastasis in vitro or in vivo. Mechanistically, FOXCUT competitively bounded to miR-24-3p to prevent the degradation of p38, which might act as an oncogene in breast cancer. CONCLUSION: Collectively, this research revealed a novel FOXCUT/miR-24-3p/p38 axis that affected breast cancer progression and suggested that the lncRNA FOXCUT could be a diagnostic marker and therapeutic target for breast cancer.


Subject(s)
MicroRNAs , RNA, Long Noncoding , Triple Negative Breast Neoplasms , Humans , Cell Line, Tumor , Cell Movement/genetics , Cell Proliferation/genetics , Gene Expression Regulation, Neoplastic/genetics , MAP Kinase Signaling System , MicroRNAs/genetics , MicroRNAs/metabolism , p38 Mitogen-Activated Protein Kinases/genetics , p38 Mitogen-Activated Protein Kinases/metabolism , RNA, Long Noncoding/genetics , RNA, Long Noncoding/metabolism , Triple Negative Breast Neoplasms/genetics , Triple Negative Breast Neoplasms/pathology
4.
BMJ Open ; 13(9): e074067, 2023 09 18.
Article in English | MEDLINE | ID: mdl-37723117

ABSTRACT

INTRODUCTION: Coronary heart disease (CHD) is one of the common cardiovascular diseases that seriously jeopardise human health, and endothelial inflammation and dyslipidaemia are the initiating links leading to its occurrence. Percutaneous coronary intervention (PCI) is one of the most effective surgical treatments for CHD with narrowed or blocked blood vessels, which can quickly unblock the blocked vessels and restore coronary blood supply. However, most patients may experience coronary microcirculation disorders (CMDs) and decreased cardiac function after PCI treatment, which directly affects the efficacy of PCI and the prognosis of patients. Preprotein converting enzyme subtilisin/Kexin 9 (PCSK9) inhibitors are novel pleiotropy lipid-lowering drug with dual anti-inflammation and lipid-lowering effects, and represent a new clinical pathway for rapid correction of dyslipidaemia. Therefore, we designed this protocol to systematically evaluate the effects of PCSK9 inhibitors on coronary microcirculation and cardiac function in patients with CHD after PCI, and to provide high-quality evidence-based evidence for the clinical application of PCSK9 inhibitors. METHODS AND ANALYSIS: This protocol is reported strictly in accordance with the 2020 Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocols Guidelines. We will search PubMed, EMBASE, Web of Science and three Chinese databases (CNKI, Wanfang and VIP database) according to preset search strategies, without language and publication data restrictions. We will work with manual retrieval to screen references that have been included in the literature. Google Scholar will be used to search for grey literature. The final included literature must meet the established inclusion criteria. Titles, abstracts and full text will be extracted independently by two reviewers, and disagreements will be resolved through discussion or the involvement of a third reviewer. Extracted data will be analysed using Review Manager V.5.3. The Cochrane Risk of Bias Tool will be used to evaluate the risk of bias. Publication bias will be assessed by funnel plots. Heterogeneity will be assessed by I2 test and subgroup analyses will be used to further investigate potential sources of heterogeneity. The quality of the literature will be assessed by GRADE score. This protocol will start in January 2026 and end in December 2030. ETHICS AND DISSEMINATION: This study is a systematic review of published literature data and no special ethical approval was required. PROSPERO REGISTRATION NUMBER: CRD42022346189.


Subject(s)
Coronary Disease , Percutaneous Coronary Intervention , Humans , Subtilisin , PCSK9 Inhibitors , Proprotein Convertase 9 , Microcirculation , Systematic Reviews as Topic , Meta-Analysis as Topic , Inflammation , Enzyme Inhibitors , Lipids
5.
Am J Transl Res ; 15(4): 2598-2609, 2023.
Article in English | MEDLINE | ID: mdl-37193173

ABSTRACT

OBJECTIVE: Immunogenic cell death (ICD) of tumor cells is characterized by the induction of adaptive and innate immune responses, which in turn activates the immune surveillance and improves the efficacy of immunotherapy. In this study, we aimed to investigate the effect of ICD on the prognosis and the efficacy of immunotherapy in patients with triple-negative breast cancer (TNBC). METHODS: TNBC samples from The Cancer Genome Atlas-Breast Cancer (TCGA-BRCA) dataset were divided into two subtypes (ICD-high and ICD-low) based on the ICD status by using the consensus clustering method, and their genomic landscape and immune landscape were delineated. Furthermore, we established an ICD-related prognostic model to predict the efficacy of immunotherapy and the survival of TNBC. RESULTS: Our study showed that a poor prognosis of TNBC was associated with ICD-high subtype, while a favorable outcome was associated with ICD-low subtype. The immune landscape profiling results revealed that ICD-high subtype presented an immune-hot phenotype, whereas ICD-low subtype was associated with an immune-cold phenotype. Furthermore, our prognostic model predicted that the high-risk score group had a poor overall survival (OS), which was consistent with the actual data in the Gene Expression Omnibus (GEO) dataset. We also used tumor immune dysfunction and exclusion (TIDE) to determine the predictive significance of our ICD risk signature in immunotherapy efficacy, and found that ICD high-risk group had the highest response rate to immunotherapy in the immunotherapy response group. CONCLUSION: Our results reveal a correlation between ICD status and alterations in the tumor immune microenvironment in patients with TNBC. This finding might help guide clinicians in immunotherapy application for TNBC patients.

6.
Front Pharmacol ; 14: 1083875, 2023.
Article in English | MEDLINE | ID: mdl-36744254

ABSTRACT

Atherosclerosis (AS) is a chronic inflammatory disease that is a major cause of cardiovascular diseases (CVDs), including coronary artery disease, hypertension, myocardial infarction, and heart failure. Hence, the mechanisms of AS are still being explored. A growing compendium of evidence supports that the activity of the mechanistic/mammalian target of rapamycin (mTOR) is highly correlated with the risk of AS. The mTOR signaling pathway contributes to AS progression by regulating autophagy, cell senescence, immune response, and lipid metabolism. Various botanical drugs and their functional compounds have been found to exert anti- AS effects by modulating the activity of the mTOR signaling pathway. In this review, we summarize the pathogenesis of AS based on the mTOR signaling pathway from the aspects of immune response, autophagy, cell senescence, and lipid metabolism, and comb the recent advances in natural compounds from botanical drugs to inhibit the mTOR signaling pathway and delay AS development. This review will provide a new perspective on the mechanisms and precision treatments of AS.

7.
Clin Respir J ; 16(6): 441-449, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35591765

ABSTRACT

INTRODUCTION: Renal impairment is a common complication in coronavirus disease 2019 (COVID-19), although its prognostic significance remains unknown. OBJECTIVES: This study determines the impact of early renal impairment on the clinical outcome of COVID-19. METHODS: Patients diagnosed with COVID-19 and hospitalized in Xiaogan Central Hospital from 20 January to 29 February 2020 were retrospectively included and grouped into two cohorts (cohort with normal renal function and cohort with renal insufficiency) based on the renal function detected on admission. Records of clinical manifestation, laboratory findings and clinical outcome were collected and compared between these two cohorts. RESULTS: A total 543 COVID-19 patients were included. Among these patients, 70 patients developed early renal impairment, with an incidence of 12.89%. A significantly higher white blood cell (WBC) count, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), serum creatine (Cr), blood urine nitrogen (BUN) and brain natriuretic peptide (BNP) and a significantly lower blood platelet (PLT), lymphocyte count, prealbumin and albumin (ALB) were detected in the cohort with renal insufficiency (P < 0.05). Patients with early renal impairment were also associated with higher incidences of haematuria/proteinuria, higher incidences of mortality and prolonged hospitalization duration. The independent risk factors for in-hospital death included age >65 years old, complication of diabetes, renal impairment on admission (Cr > 73 µmol/L and eGFR < 60 ml/min 1.73 m2 ), WBC > 9.5 × 109 /L and ALB < 35 g/L. CONCLUSION: Early renal impairment is associated with higher risk of in-hospital death for patients with COVID-19. Risk stratification according to renal function can better guide the clinical management of COVID-19.


Subject(s)
COVID-19 , Renal Insufficiency , Aged , COVID-19/complications , COVID-19/epidemiology , Hospital Mortality , Humans , Renal Insufficiency/epidemiology , Retrospective Studies , SARS-CoV-2
8.
China Occupational Medicine ; (6): 673-677, 2022.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-976100

ABSTRACT

@#Objective To investigate the current status of occupational hazards and prevention and control of occupational , - Methods , diseases in micro small and medium sized manufacturing enterprises in Jiangxi Province. A total of 1 034 micro - small and medium sized manufacturing enterprises in Jiangxi Province were selected as the research subjects using a stratified cluster sampling method. The exposure of occupational hazards and the implementation of occupational hazards prevention and Results , control measures were investigated. Among the 1 034 enterprises the small and micro enterprises accounted for , 91.5%. The enterprises with serious occupational hazards were mainly concentrated in metallurgy building materials industry , and machinery equipment and electrical appliance manufacturing industry. The exposure rate of occupational hazard factors in , , ( vs the categories of occupational hazard factors from high to low was physical factors dust and chemical factors 78.9% 52.8% vs ,P ) ( ), , 25.0% <0.01 . The exposure rate from high to low was metallurgy and building materials industry 60.8% machinery ( ), , equipment and electrical equipment manufacturing industry 42.9% light industry textile and tobacco processing industry ( ), , ( )(P ) 32.0% chemical petrochemical and pharmaceutical industry 21.0% <0.01 . Noise exposure accounted for 98.3% in the workers exposed to physical factors. The implementation rate of prevention and control measures for occupational hazards , in enterprises from high to low was the staffing of occupational health management personnel the establishment of , , occupational health management institutions the establishment of occupational health management systems the detection , , of occupational hazards the evaluation of the control effect of occupational hazards of construction projects and the - ( vs vs vs vs vs ,P ) pre evaluation of occupational hazards of construction projects 32.5% 25.7% 23.7% 16.2% 6.9% 4.2% <0.01 . Conclusion The focus of prevention and control of occupational hazards in manufacturing industry in Jiangxi Province is noise , - and dust in small and micro metallurgy and building materials industry. Most of the micro small and medium sized manufacturing enterprises have not carried out the detection of occupational hazards and evaluation of occupational hazards in accordance with the law. The situation of occupational disease prevention and control is still challenging.

9.
China Occupational Medicine ; (6): 673-677, 2022.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-976098

ABSTRACT

@#Objective To investigate the current status of occupational hazards and prevention and control of occupational , - Methods , diseases in micro small and medium sized manufacturing enterprises in Jiangxi Province. A total of 1 034 micro - small and medium sized manufacturing enterprises in Jiangxi Province were selected as the research subjects using a stratified cluster sampling method. The exposure of occupational hazards and the implementation of occupational hazards prevention and Results , control measures were investigated. Among the 1 034 enterprises the small and micro enterprises accounted for , 91.5%. The enterprises with serious occupational hazards were mainly concentrated in metallurgy building materials industry , and machinery equipment and electrical appliance manufacturing industry. The exposure rate of occupational hazard factors in , , ( vs the categories of occupational hazard factors from high to low was physical factors dust and chemical factors 78.9% 52.8% vs ,P ) ( ), , 25.0% <0.01 . The exposure rate from high to low was metallurgy and building materials industry 60.8% machinery ( ), , equipment and electrical equipment manufacturing industry 42.9% light industry textile and tobacco processing industry ( ), , ( )(P ) 32.0% chemical petrochemical and pharmaceutical industry 21.0% <0.01 . Noise exposure accounted for 98.3% in the workers exposed to physical factors. The implementation rate of prevention and control measures for occupational hazards , in enterprises from high to low was the staffing of occupational health management personnel the establishment of , , occupational health management institutions the establishment of occupational health management systems the detection , , of occupational hazards the evaluation of the control effect of occupational hazards of construction projects and the - ( vs vs vs vs vs ,P ) pre evaluation of occupational hazards of construction projects 32.5% 25.7% 23.7% 16.2% 6.9% 4.2% <0.01 . Conclusion The focus of prevention and control of occupational hazards in manufacturing industry in Jiangxi Province is noise , - and dust in small and micro metallurgy and building materials industry. Most of the micro small and medium sized manufacturing enterprises have not carried out the detection of occupational hazards and evaluation of occupational hazards in accordance with the law. The situation of occupational disease prevention and control is still challenging.

10.
Eur J Radiol ; 135: 109512, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33429302

ABSTRACT

PURPOSE: To develop a combined nomogram by incorporating the Memorial Sloan Kettering Cancer Center (MSKCC) nomogram and ultrasound (US)-based radiomics score (Radscore) for predicting sentinel lymph node (SLN) metastasis in invasive breast cancer. MATERIALS AND METHODS: This retrospective study was approved by the ethics committee of our institution, and written informed consent was waived. A total of 452 patients with invasive breast cancer who received SLN Biopsy in a single center were included between January 2016 and December 2019. The patients were divided into a training set (n = 318) and a validation set (n = 134). A total of 1216 features were extracted from the regions of interest (ROIs) of the tumors on conventional ultrasound. The maximum relevance minimum redundancy (mRMR) and the least absolute shrinkage and selection operator (LASSO) algorithm were used to build the Radscore. Afterward, the diagnostic performance was assessed and validated. Comparison of receiver operating characteristic (ROC) curves and decision curve analysis (DCA) were performed to evaluate the incremental value of the combined model. RESULTS: Obtained from 18 features, the Radscore indicated a favorable discriminatory capability in the training set with an area under the curve (AUC) of 0.834, whereas a value of 0.770 was observed in the validation set. The AUC of the combined model was 0.901 (95 % confidence interval (95 % CI): 0.865-0.938) in the training set and 0.833 (95 % CI: 0.788-0.878) in the validation set. Both of them were superior to MSKCC or imaging Radscore alone (P < 0.05). DCA demonstrated that the combined model was superior to the others in terms of clinical practicability. CONCLUSION: Preoperative US-based Radscore can improve the accuracy of clinical MSKCC nomogram for SLN metastasis prediction in breast cancer.


Subject(s)
Breast Neoplasms , Nomograms , Breast Neoplasms/diagnostic imaging , Breast Neoplasms/surgery , Humans , Lymph Nodes/diagnostic imaging , Lymphatic Metastasis/diagnostic imaging , ROC Curve , Retrospective Studies , Sentinel Lymph Node Biopsy
11.
Int J Syst Evol Microbiol ; 70(3): 1793-1799, 2020 Mar.
Article in English | MEDLINE | ID: mdl-31958054

ABSTRACT

A Gram-stain-positive, aerobic, non-motile and coccoid-shaped bacterium, designated XNB-1T, was isolated from farmland soil in Taian, Shandong province, China. Strain XNB-1T contained iso-C15 : 0 and iso-C16 : 0 as the predominant fatty acids. The diagnostic diamino acid of the peptidoglycan was ornithine, and the interpeptide bridge was l-Orn←Gly(1, 2)←d-Glu. The polar lipid profile of strain XNB-1T consisted of diphosphatidylglycerol, phosphatidylglycerol, an unidentified phosphoglycolipid and three unidentified phospholipids. The predominant menaquinone of strain XNB-1T was MK-8(H4) and the DNA G+C content was 70.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain XNB-1T belonged to the genus Ornithinicoccus, and shared the highest similarity with Ornithinicoccus hortensis HKI 0125T (96.0 %), followed by Ornithinicoccus halotolerans EGI 80423T (95.5 %). Genome-based analysis of average nucleotide identity of strain XNB-1T with O. hortensis HKI 0125T and O. halotolerans EGI 80423T yielded values of 73.1 and 73.3 %, respectively, while the digital DNA-DNA hybridization values were 19.5 and 19.9 %, respectively. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain XNB-1T is considered to represent a novel species of the genus Ornithinicoccus, for which the name Ornithinicoccus soli sp. nov. is proposed. The type strain is XNB-1T (=CCTCC AB 2019099T=KCTC 49259T).


Subject(s)
Actinobacteria/classification , Farms , Phylogeny , Soil Microbiology , Actinobacteria/isolation & purification , Bacterial Typing Techniques , Base Composition , China , DNA, Bacterial/genetics , Fatty Acids/chemistry , Nucleic Acid Hybridization , Peptidoglycan/chemistry , Phospholipids/chemistry , RNA, Ribosomal, 16S/genetics , Sequence Analysis, DNA , Vitamin K 2/analogs & derivatives , Vitamin K 2/chemistry
12.
Int J Syst Evol Microbiol ; 70(2): 1152-1157, 2020 Feb.
Article in English | MEDLINE | ID: mdl-31800385

ABSTRACT

A Gram-stain-positive, strictly aerobic, non-motile, non-spore-forming and rod-shaped bacterium, designated as strain G-1T, was isolated from farmland soil sampled in in Fuyang, Anhui Province, PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain G-1T was closely related to Cumulibacter manganitolerans 2-36T (97.7 % similarity). Strain G-1T contained iso-C16 : 0, C17 : 1ω6c, iso-C15 : 0 and iso-C14 : 0 as the predominant fatty acids. The polar lipids of strain G-1T were diphosphatidylglycerol, phosphatidylethanolamine, an unidentified phospholipid, an unidentified lipid and two unidentified glycolipids. The predominant respiratory quinone of strain G-1T was MK-9(H4). The cell wall contained meso-diaminopimelic acid as the diagnostic diamino acid. The G+C content of the genomic DNA based on genome calculations was 64.2 mol%. Average nucleotide identity and the digital DNA-DNA hybridization values for the draft genomes between strain G-1T and strain 2-36T were 75.7 and 20.2 %, respectively. On the basis of phenotypic and phylogenetic data, strain G-1T is considered to represent a novel species of the genus Cumulibacter, for which the name Cumulibacter soli sp. nov. is proposed. The type strain is G-1T (=CCTCC AB2019021T=KCTC 49258T).


Subject(s)
Actinobacteria/classification , Farms , Phylogeny , Soil Microbiology , Actinobacteria/isolation & purification , Bacterial Typing Techniques , Base Composition , China , DNA, Bacterial/genetics , Diaminopimelic Acid/chemistry , Fatty Acids/chemistry , Glycolipids/chemistry , Nucleic Acid Hybridization , Phospholipids/chemistry , RNA, Ribosomal, 16S/genetics , Sequence Analysis, DNA , Vitamin K 2/analogs & derivatives , Vitamin K 2/chemistry
13.
J Ocul Pharmacol Ther ; 33(9): 693-703, 2017 11.
Article in English | MEDLINE | ID: mdl-28933986

ABSTRACT

Abstracts Purpose: Pirfenidone is mostly used in antifibrotic and anti-inflammatory therapies. We have previously demonstrated that pirfenidone had antifibrotic and anti-inflammatory effects on the wound healing process after glaucoma filtration surgery in vitro and in vivo. Since the wound healing and reactive scarring process simultaneously involves inflammation, fibrosis, and angiogenesis, and angiogenesis plays a more important role in chronic or prolonged wound healing, we tried to explore the antiangiogenesis effect in pirfenidone and its potential multitarget function in regulating excessive scarring. The aim of the present study was to investigate the antiangiogenesis effect of pirfenidone. METHODS: The proliferation of human umbilical vein endothelial cells (HUVECs) and human Tenon's fibroblasts (HTFs) were detected by WST-1 assay. The cell viability of HUVECs was measured by Trypan Blue together with lactate dehydrogenase, Annexin 5 experiment, and Ki-67 immunofluorescence assay. The functions of HUVECs and HTFs were demonstrated using cell migration assay, transwell invasion assay, and tube formation assay. The expression levels of vascular endothelial growth factor-A (VEGF-A), VEGF receptor-2 (VEGFR-2), neuropilin-1(NRP-1), and their downstream signaling proteins p-PI3K, PI3K, p-AKT, AKT, p-mTOR, and mechanistic target of rapamycin (mTOR) were indicated by western blot assay. The secretion of VEGF-A was detected by enzyme-linked immunosorbent assay. RESULTS: Pirfenidone inhibited proliferation, migration, invasion, and tube formation of HUVECs in vitro, and had an equivalent antiangiogenesis effect when compared with Ranibizumab in HUVECs and HTFs. Pirfenidone downregulated VEGF-A/VEGFR-2, VEGF-A/NRP-1, and its downstream signaling pathway protein expression. CONCLUSIONS: Pirfenidone has an antiangiogenesis effect in the wound healing process and may become an ideal multitarget antiscarring agent after glaucoma filtration surgery.


Subject(s)
Angiogenesis Inhibitors/pharmacology , Anti-Inflammatory Agents, Non-Steroidal/pharmacology , Pyridones/pharmacology , Wound Healing/drug effects , Annexin A5/metabolism , Blotting, Western , Cell Movement/physiology , Cell Proliferation/drug effects , Cell Survival/drug effects , Enzyme-Linked Immunosorbent Assay , Fibroblasts/drug effects , Flow Cytometry , Human Umbilical Vein Endothelial Cells/drug effects , Humans , Ki-67 Antigen/metabolism , L-Lactate Dehydrogenase/metabolism , Neurophysins/metabolism , Tenon Capsule/cytology , Vascular Endothelial Growth Factor A/metabolism , Vascular Endothelial Growth Factor Receptor-2/metabolism
14.
Invest Ophthalmol Vis Sci ; 57(11): 4740-8, 2016 09 01.
Article in English | MEDLINE | ID: mdl-27607420

ABSTRACT

PURPOSE: To investigate the pharmacologic effect of tetramethylpyrazine (TMP) on human Tenon's fibroblasts (HTFs), the cells implicated in scarring after filtration surgery. METHODS: Transforming growth factor-ß2 (TGF-ß2) was used to stimulate a fibrotic phenotype in primary HTFs, and the influence of TMP on the fibrotic phenotype was assessed. Cell proliferation and cell cycle regulation were profiled. Immunofluorescence staining tracked proliferating cell nuclear antigen (PCNA) expression. Transwell assays monitored cell migration. Flow cytometry measured TMP toxicity. In addition, in TGF-ß2-treated HTFs, Western blot and immunofluorescence were employed to assess the expression of α-smooth muscle actin (α-SMA). The TMP-mediated activity on cytoskeletal arrangements and extracellular matrix (ECM) accumulation in HTFs was evaluated using actin polymerization and Western blot assays. Moreover, TGF-ß-dependent activation of Smad3 and p38 was examined by Western blot analysis. RESULTS: In TGF-ß2-treated HTFs, TMP reduced proliferation and migration but did not induce apoptosis. Moreover, TMP attenuated expression of α-SMA and suppressed stress fiber formation stimulated by profibrotic cytokine; it also counteracted TGF-ß2-induced cytoskeletal rearrangements, morphologic changes, and ECM accumulation. Smad3 and p38 mitogen-activated protein kinase (MAPK) signaling were downstream of the TMP-sensitive effect. CONCLUSIONS: Tetramethylpyrazine counteracts TGF-ß2-mediated myofibroblast transdifferentiation and attenuates ECM component deposition and cell proliferation in HTFs, implicating TMP as a potential antifibrosis agent in glaucoma filtration surgery.


Subject(s)
Pyrazines/pharmacology , Tenon Capsule/pathology , Transforming Growth Factor beta2/pharmacology , Blotting, Western , Cell Proliferation , Cell Transdifferentiation/drug effects , Cells, Cultured , Fibroblasts/drug effects , Fibroblasts/pathology , Filtering Surgery , Flow Cytometry , Glaucoma/surgery , Humans , Postoperative Complications/drug therapy , Postoperative Complications/metabolism , Postoperative Complications/pathology , Tenon Capsule/drug effects , Vasodilator Agents/pharmacology
15.
Int J Cancer ; 139(7): 1564-73, 2016 10 01.
Article in English | MEDLINE | ID: mdl-27225307

ABSTRACT

The aim of this article was to evaluate whether genetic variants in autophagy-related genes affect the overall survival (OS) of non-small cell lung cancer (NSCLC) patients. We analyzed 14 single nucleotide polymorphisms (SNPs) in core autophagy-related genes for OS in 1,001 NSCLC patients. Three promising SNPs in ATG10 were subsequently annotated by the expression quantitative trait loci (eQTL) and methylation quantitative trait loci (meQTL) analyses based on Genotype-Tissue Expression (GTEx) and The Cancer Genome Atlas (TCGA) datasets. We observed that the variants of rs10514231, rs1864182 and rs1864183 were associated with poor lung cancer survival (HR = 1.33, 95% CI = 1.07-1.65; HR = 1.43, 95% CI = 1.13-1.81; HR = 1.38, 95% CI = 1.14-1.68, respectively) and positively correlated with ATG10 expression (all p < 0.05) from GTEx and TCGA datasets. The elevated expression of ATG10 may predict shorter survival time in lung cancer patients in TCGA dataset (HR = 2.10, 95% CI = 1.33-3.29). Moreover, the variants of rs10514231 and rs1864182 were associated with the increased methylation levels of cg17942617 (meQTL), which in turn contributed to the elevated ATG10 expression and decreased survival time. Further functional assays revealed that ATG10 facilitated lung cancer cell proliferation and migration. Our findings suggest that eQTL/meQTL variations of ATG10 could influence lung cancer survival through regulating ATG10 expression.


Subject(s)
Autophagy-Related Proteins/genetics , Carcinoma, Non-Small-Cell Lung/genetics , Lung Neoplasms/genetics , Quantitative Trait Loci , Vesicular Transport Proteins/genetics , Autophagy/genetics , Autophagy-Related Proteins/biosynthesis , Carcinoma, Non-Small-Cell Lung/metabolism , Carcinoma, Non-Small-Cell Lung/mortality , Cell Line, Tumor , DNA Methylation , Humans , Lung Neoplasms/metabolism , Lung Neoplasms/mortality , Polymorphism, Single Nucleotide , Prognosis , RNA, Messenger/biosynthesis , RNA, Messenger/genetics , Survival Rate , Vesicular Transport Proteins/biosynthesis
16.
Medicine (Baltimore) ; 94(39): e1651, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26426659

ABSTRACT

Refractory glaucoma refers to uncontrolled intraocular pressure (IOP) despite anti-glaucoma medication and surgical treatment, which remains a challenge to be treated. The objective of this study is to evaluate and statistically compare the clinical efficacy between endoscopic cyclophotocoagulation (ECP) and alternative surgical techniques in the treatment of refractory glaucoma in this article, as a meta-analysis. Data sources are China Biomedical Database (Sinomed, online version), China National Knowledge Infrastructure (CNKI), Cqvip, Wanfang database, and PubMed. The randomized controlled trial (RCT) and case-control study literatures evaluating the clinical efficacy between ECP and other surgical techniques were searched electronically from public databases. The methodology quality of the retrieved articles was evaluated according to the RCT or case-control study criteria. The success rate of treatment, intraocular pressure (IOP) and visual acuity were statistically compared. RevMan 5.3 software was used for the meta-analysis. In total, 6 relevant control studies were selected in this study with a total sampling of 429 cases (429 eyes), including 204 eyes in the ECP group and 225 in the non-ECP group. Meta-analysis demonstrated that the clinical efficacy did not significantly differ between 2 groups (P > 0.05). Postoperative IOP was dramatically reduced in both groups. However, it was difficult to evaluate the combined influence of ECP and non-ECP therapies upon IOP reduction. In conclusion, ECP and non-ECP treatment yielded almost equivalent clinical efficacy in treating refractory glaucoma. The IOP-lowering degree, safety, and incidence of complications remain to be further elucidated by RCTs with a larger sample size.


Subject(s)
Endoscopy , Glaucoma/surgery , Light Coagulation , Humans , Treatment Outcome
17.
Oncol Lett ; 9(5): 2143-2148, 2015 May.
Article in English | MEDLINE | ID: mdl-26137028

ABSTRACT

The Vav3 oncogene is overexpressed and has a significant role in the tumorigenesis of prostate cancer and glioblastoma. In the present study, the expression status and prognostic value of Vav3 expression was investigated in breast cancer. Vav3 protein levels were analyzed by immunoblotting in human breast cancer and epithelial cell lines. Immunohistochemistry was used to detect Vav3 in a tissue microarray of 173 breast cancers and 19 benign breast lesions. Statistical analysis was performed to reveal the association between Vav3 expression and clinicopathological parameters. Disease-free survival (DFS) and overall survival (OS) were calculated by Kaplan-Meier analysis and the Cox regression model. The Vav3 protein level was higher in the breast cancer cell lines than in the normal human breast cells. Vav3 was expressed in 86.1% of breast cancer patients, but in only 15.6% patients with benign breast disease. Patients with negative estrogen receptor expression, axillary lymph node involvement and a high tumor-node-metastasis stage demonstrated a higher positive rate of Vav3 expression. The Kaplan-Meier survival analysis revealed that patients with higher Vav3 expression exhibited shorter DFS and OS times. The multivariate Cox analysis revealed that Vav3 was a prognostic factor of survival. Overall, Vav3 was overexpressed in human breast cancer cells and this correlated with a shorter survival time, indicating that Vav3 is a biomarker of a poor prognosis for breast cancer patients.

18.
Asia Pac J Clin Oncol ; 10(2): 101-8, 2014 Jun.
Article in English | MEDLINE | ID: mdl-23714093

ABSTRACT

AIM: Blood group is an important risk factor for some malignancies, including pancreatic and stomach cancer. However, it is unclear whether the risk of breast cancer is higher in any specific ABO blood type. METHODS: We searched the electronic database of PubMed, EMBASE, China National Knowledge Infrastructure and the VIP Chinese Journal of Science and Technology for case-control studies about blood type and breast cancer incidence, and a meta-analysis was conducted. RESULTS: Fourteen studies were eligible for assessment on the association of breast cancer with different blood types, including 9665 breast cancer patients and 244,768 controls. Relative to blood type O, women with blood type A (odds ratio (OR) = 1.115, 95% confidence interval (CI) 0.992-1.254), B (OR = 0.983, 95% CI 0.915-1.056) and AB (OR = 1.042, 95% CI 0.881-1.231) had the same breast cancer risk. The risk for women with Rhesus-positive (Rh+) was the same as those with Rh-negative (Rh-) (OR = 0.948, 95% CI 0.667-1.348). Among Caucasians, the OR of blood type A was 1.066 (95% CI, 1.001-1.134, P = 0.522 for heterogeneity). CONCLUSION: This meta-analysis suggests Caucasians with blood type A may have a higher risk of breast cancer than other Caucasians. No association was found in any other blood type or any other population. Similarly, the Rh factor had no association with the risk of breast cancer.


Subject(s)
ABO Blood-Group System , Breast Neoplasms/blood , Rh-Hr Blood-Group System , Breast Neoplasms/ethnology , Breast Neoplasms/pathology , Case-Control Studies , Female , Humans , Risk Factors , White People/statistics & numerical data
19.
Gene ; 527(2): 491-5, 2013 Sep 25.
Article in English | MEDLINE | ID: mdl-23850577

ABSTRACT

Autophagy is a cellular process directed at recycling of cellular proteins and removal of intracellular microorganisms, which is important for balancing sources of energy at critical times in development and in response to nutrient stress. It has been reported to be a critical process in cancer initiation and progression. We hypothesized that genetic variants in critical genes of autophagy may be involve in the development of breast cancer. Thus, we systematically screened 14 potentially functional polymorphisms in six autophagy-related genes (ATG3, ATG5, ATG7, ATG10, and ATG12 and LC3) that are core components in autophagosome formation. We conducted a case-control study including 1064 breast cancer cases and 1073 cancer-free controls to evaluate the associations of these variants with breast cancer risk. We found that rs1864182 and rs10514231 in ATG10 were significantly associated with a decreased risk of breast cancer [odds ratios (OR)=0.77, 95% confidence interval (CI): 0.61-0.96, P=0.023; and OR=0.75, 95% CI: 0.59-0.93, P=0.010, respectively]. Similar protective effects for both loci were observed between subgroups stratified by ages at diagnosis/recruitment, menarche and first live birth, and status of menopause, estrogen receptor (ER) and progesterone receptor (PR). These results suggest that genetic variants in ATG10 may implicate with breast cancer susceptibility in Chinese population. Further large and functional studies are needed to confirm our findings.


Subject(s)
Breast Neoplasms/genetics , Genetic Predisposition to Disease , Polymorphism, Single Nucleotide , Ubiquitin-Conjugating Enzymes/genetics , Adult , Autophagy-Related Proteins , China , Female , Humans , Middle Aged , Vesicular Transport Proteins
20.
Int J Cancer ; 133(9): 2216-24, 2013 Nov.
Article in English | MEDLINE | ID: mdl-23629745

ABSTRACT

MicroRNAs (miRNA) are a class of small, noncoding RNA molecules involved in a diversity of cellular functions. Single nucleotide polymorphisms (SNPs) in miRNA biosynthesis genes may affect the biogenesis of miRNAs and consequently affect the miRNAs regulation. In this study, we systematically selected 24 functional SNPs located in eight key biosynthesis genes of miRNA (DROSHA, DGCR8, RAN, DICER, AGO2, GEMIN3, GEMIN4 and HIWI) and investigated the association between these SNPs and the risk of breast cancer in a Chinese population. All 24 SNPs were firstly genotyped in stage 1 (878 cases and 900 controls) and three promising SNPs (DROSHA rs2291109, RAN rs7301722 and DGCR8 rs417309) were selected for further validation in stage 2 (914 cases and 967 controls). We found that only one SNP (rs417309) located in the 3'-UTR of DGCR8 was consistently associated with an increased breast cancer risk in two stages with a combined odds ratio (OR) of 1.50 [95% confidence interval (CI) = 1.16-1.93]. Based on the bioinformatics prediction, rs417309 is located at the binding sites of miR-106b and miR-579 in the 3'-UTR of DGCR8. To evaluate whether rs417309 variant affects the binding capacity of miRNAs, we cotransfected luciferase reporter plasmids of DGCR8 3'-UTR and miR-106b/miR-579 in three cell lines. Luciferase activity assay showed a higher expression level with rs417309 A allele compared with G allele in MCF-7 cell lines (p = 3.31 × 10(-7) , 9.29 × 10(-7) for miR-106b and miR-579, respectively). Our findings suggested that DGCR8 rs417309 G > A might affect breast cancer risk through the interruption of miRNA binding.


Subject(s)
3' Untranslated Regions/genetics , Asian People/genetics , Biomarkers, Tumor/genetics , Breast Neoplasms/genetics , MicroRNAs/genetics , Polymorphism, Single Nucleotide/genetics , Proteins/genetics , Case-Control Studies , Female , Follow-Up Studies , Genotype , Humans , Luciferases/metabolism , Middle Aged , Neoplasm Staging , Polymerase Chain Reaction , Prognosis , RNA-Binding Proteins
SELECTION OF CITATIONS
SEARCH DETAIL
...