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Cai SY, Gu X, Liu PJ, Li RS, Jiang JJ, Zhao SP, Yao W, Jiang YN, Yin YH, Yu B, Yuan ZY, Wang JA. [Efficacy and safety of various doses of hybutimibe monotherapy or in combination with atorvastatin for primary hypercholesterolemia: a multicenter, randomized, double-blind, double-dummy, parallel-controlled phase Ⅲ clinical trial]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:180-187. [PMID: 36789598 DOI: 10.3760/cma.j.cn112148-20230105-00009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Objective: To evaluate the efficacy and safety of hybutimibe monotherapy or in combination with atorvastatin in the treatment of primary hypercholesterolemia. Methods: This was a multicenter, randomized, double-blind, double-dummy, parallel-controlled phase Ⅲ clinical trial of patients with untreated primary hypercholesterolemia from 41 centers in China between August 2015 and April 2019. Patients were randomly assigned, at a ratio of 1∶1∶1∶1∶1∶1, to the atorvastatin 10 mg group (group A), hybutimibe 20 mg group (group B), hybutimibe 20 mg plus atorvastatin 10 mg group (group C), hybutimibe 10 mg group (group D), hybutimibe 10 mg plus atorvastatin 10 mg group (group E), and placebo group (group F). After a dietary run-in period for at least 4 weeks, all patients were administered orally once a day according to their groups. The treatment period was 12 weeks after the first dose of the study drug, and efficacy and safety were evaluated at weeks 2, 4, 8, and 12. After the treatment period, patients voluntarily entered the long-term safety evaluation period and continued the assigned treatment (those in group F were randomly assigned to group B or D), with 40 weeks' observation. The primary endpoint was the percent change in low density lipoprotein cholesterol (LDL-C) from baseline at week 12. Secondary endpoints included the percent changes in high density lipoprotein cholesterol (HDL-C), triglyceride (TG), apolipoprotein B (Apo B) at week 12 and changes of the four above-mentioned lipid indicators at weeks 18, 24, 38, and 52. Safety was evaluated during the whole treatment period. Results: Totally, 727 patients were included in the treatment period with a mean age of (55.0±9.3) years old, including 253 males. No statistical differences were observed among the groups in demographics, comorbidities, and baseline blood lipid levels. At week 12, the percent changes in LDL-C were significantly different among groups A to F (all P<0.01). Compared to atorvastatin alone, hybutimibe combined with atorvastatin could further improve LDL-C, TG, and Apo B (all P<0.05). Furthermore, there was no significant difference in percent changes in LDL-C at week 12 between group C and group E (P=0.991 7). During the long-term evaluation period, there were intergroup statistical differences in changes of LDL-C, TG and Apo B at 18, 24, 38, and 52 weeks from baseline among the statins group (group A), hybutimibe group (groups B, D, and F), and combination group (groups C and E) (all P<0.01), with the best effect observed in the combination group. The incidence of adverse events was 64.2% in the statins group, 61.7% in the hybutimibe group, and 71.0% in the combination group during the long-term evaluation period. No treatment-related serious adverse events or adverse events leading to death occurred during the 52-week study period. Conclusions: Hybutimibe combined with atorvastatin showed confirmatory efficacy in patients with untreated primary hypercholesterolemia, which could further enhance the efficacy on the basis of atorvastatin monotherapy, with a good overall safety profile.
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Affiliation(s)
- S Y Cai
- Department of Cardiology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X Gu
- Department of Cardiology, Subei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - P J Liu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - R S Li
- Department of Cardiology, Liuzhou People's Hospital, Liuzhou 545026, China
| | - J J Jiang
- Department of Cardiology, Taizhou Hospital of Zhejiang Province, Taizhou 317000, China
| | - S P Zhao
- Department of Cardiology, the Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - W Yao
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y N Jiang
- Department of Cardiology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y H Yin
- Department of Cardiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - B Yu
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Z Y Yuan
- Department of Cardiology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J A Wang
- Department of Cardiology, The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou 310009, China
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Li YZ, Xie J, Wang RQ, Gao XQ, Liu PJ, Liu J. KLF2 is a clinical diagnostic and treatment biomarker of breast cancer. Front Cell Dev Biol 2023; 11:1182123. [PMID: 37123417 PMCID: PMC10133575 DOI: 10.3389/fcell.2023.1182123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/03/2023] [Indexed: 05/02/2023] Open
Abstract
Background: As a highly prevalent malignancy among women worldwide, breast cancer, remains a critical public health issue necessitating the development of novel therapeutics and biomarkers. Kruppel Like Factor 2 (KLF2), a member of the Kruppel family of transcription factors, has been implicated in various types of cancer due to its diminished expression; however, the potential implications of KLF2 expression in relation to breast cancer progression, prognosis, and therapy remain unclear. Methods: The present study employed the Tumor Immune Estimation Resource (TIMER) and The Human Protein Atlas databases to investigate the expression pattern of KLF2 in pan-cancer. The relationship between KLF2 expression and clinical features or immune infiltration of The Cancer Genome Atlas (TCGA) breast cancer samples was evaluated using Breast Cancer Integrative Platform (BCIP) and TIMER. The expression levels of KLF2 in breast cancer were validated via immunohistochemical staining analysis. Gene Set Enrichment Analysis (GSEA) to study the KLF2-related gene ontology. STRING database was employed to construct a protein-protein interaction (PPI) network of KLF2 in relation to vascular endothelial growth factor A (VEGFA) and hypoxia-inducible factor 1α (HIF1α). The expression of KLF2 following diverse breast cancer therapies was analyzed in the Gene Expression Omnibus (GEO) databases. The expression of KLF2 following treatment with simvastatin was validated via immunofluorescence and western blotting. Results: Our study reveals that KLF2 displays significantly reduced expression in cancerous tissues compared to non-cancerous controls. Patients with low KLF2 expression levels exhibited poor prognosis across multiple cancer types. KLF2 expression levels were found to be reduced in advanced cancer stages and grades, while positively correlated with the expression of estrogen receptor (ER), progesterone receptor (PR), and tumor size in breast cancer. KLF2 expression is associated with diverse immune infiltration cells, and may impact the breast tumor immune microenvironment by regulating dendritic cell activation. Additionally, we observed a negative correlation between KLF2 expression levels and angiogenesis, as well as the expression of VEGFA and HIF1α. Notably, the anticancer drug simvastatin could induce KLF2 expression in both breast cancer. Conclusion: Based on our observations, KLF2 has potential as a diagnostic, prognostic, and therapeutic biomarker for breast cancer.
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Affiliation(s)
- Ya-Zhao Li
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Juan Xie
- Department of Clinical Laboratory, Shaanxi Provincial People’s Hospital, Xi’an, Shaanxi, China
| | - Rui-Qi Wang
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xiao-Qian Gao
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Pei-Jun Liu
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Pei-Jun Liu, ; Jie Liu,
| | - Jie Liu
- Center for Translational Medicine, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Pei-Jun Liu, ; Jie Liu,
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Liu YY, Guo YB, Zhai HY, Lei DB, Wang H, Zhao SC, Liu PJ. [Effect of electroacupuncture regulating NLRP3/Caspase-1 pathway on pyroptosis of dopaminergic neurons in rats with Parkinson's disease]. Zhen Ci Yan Jiu 2022; 47:983-992. [PMID: 36453675 DOI: 10.13702/j.1000-0607.20211016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) on the pyrolysis of dopaminergic neurons in rats with Parkinson's disease (PD), so as to explore its underlying molecular mechanism. METHODS Male SD rats were randomly divided into the sham operation, model, EA, MCC950 and EA+MCC950 groups, with 12 rats in each group. The PD rat model was established by two-point injection of 6-OHDA. Rats in the MCC950 group were injected with MCC950 at the dose of 10 mg/kg, once a day; for rats of EA group, EA was applied to "Taichong" (LR3) and "Fengfu"(GV16) for 30 min, once a day; rats in the EA+ MCC950 group were given MCC950 injection and EA once a day. All above interventions were performed for 2 weeks. After the intervention, the behavioral changes of rats were observed using rotating induction experiment, rotating rod experiment and open field experiment; the positive expressions of dopaminergic neuronal markers tyrosine hydroxylase (TH) and α-Synuclein (α-Syn) in substantia nigra striatum were detected by immunohistochemistry; the damage of dopaminergic neurons in substantia nigra striatum was observed after HE staining; immunopositive coexpression of brain nucleotide-binding oligomerization domain like receptor protein 3 (NLRP3), Caspase-1 and ionized calcium binding adapter1 (Iba-1) were detected by immunofluorescence double staining; the levels of interleukin (IL)-1β and IL-18 in brain tissues were detected by ELISA; the protein expression levels of NLRP3, Cleaved Caspase-1 and apoptosis-associated speck-like protein containing a CARD (ASC) in the substantia nigra striatum were detected by Western blot. RESULTS Compared with the sham operation group, the number of rotations of rotating induction experiment, the residence time in the central area of open field experiment, the positive expression of α-Syn, the positive co-expressions of NLRP3/Iba-1 and Caspase-1/Iba-1, the contents of IL-1β and IL-18 in brain tissues, and the protein expression levels of NLRP3, ASC and Cleaved Caspase-1 in substantia nigra striatum were significantly increased (P<0.05), while the drop latency of rotating rod experiment, the rearing times and the total distance of open field experiment, and the positive expression of TH in substantia nigra striatum were significantly decreased (P<0.05) in the model group. Compared with the model group, the above mentioned markers were reversed in EA, MCC950 and EA+MCC950 groups (P<0.05), and the improvement of the EA+MCC950 group was more obvious than those of the MCC950 and EA groups. In the model group, the neurons were disorderly arranged, the number of neurons was reduced, the cytoplasm was swollen, and some of them were vacuolar degeneration; while the degree of neuronal arrangement disorder, cytoplasmic swelling and the vacuolar degeneration were reduced in varying degrees in the MCC950, EA and EA+MCC950 groups. CONCLUSION The ameliorative effect of EA on dopaminergic neuron damage in PD rats may be related to its effects in inhibiting NLRP3/Caspase-1 mediated neuronal pyrosis.
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Affiliation(s)
- Yan-Yang Liu
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - Ya-Bi Guo
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - Hong-Yu Zhai
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - De-Bao Lei
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - Hong Wang
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - Su-Chen Zhao
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
| | - Pei-Jun Liu
- Department of Rehabilitation Medicine, Xiangyang Central Hospital, the Affiliated Hospital of Hubei University of Arts and Sciences, Xiangyang 441021, Hubei Province, China
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Li Y, Liu PJ, Zhang ZL, Wang YN. Cardiac imaging techniques for the assessment of immune checkpoint inhibitor-induced cardiotoxicity and their potential clinical applications. Am J Cancer Res 2022; 12:3548-3560. [PMID: 36119829 PMCID: PMC9442027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) have encouraged a paradigm shift in the clinical management of patients with cancer. Despite the dramatically improved tumor response and patient prognosis, ICIs have been associated with ICI-related myocarditis, which has a high fatality rate. Cardiac imaging plays a critical role in the assessment of cardiac injury. Echocardiography, cardiac magnetic resonance imaging, and targeted tracer-based cardiac molecular imaging techniques alone or in combination reflect pathophysiology and depict different aspects of lesions at different clinical stages, i.e., they have potentially complementary value. Imaging techniques for identifying ICI-induced cardiotoxicity at the early stage may reduce the incidence of adverse cardiovascular events. Particularly in planned ICI therapy among patients with cancer, improved monitoring approaches to identify patients who are at the highest risk of ICI-related myocarditis may help in refining clinical decisions, allowing treatment to be more accurately targeted toward patients who are most likely to benefit. In this study, we systematically reviewed the studies on cardiac imaging techniques for assessing ICI-induced cardiotoxicity. We elaborated about the potential applications of cardiac imaging techniques for the optimized management of patients with ICI-related myocarditis, including risk stratification, diagnosis, and prognosis.
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Affiliation(s)
- Yi Li
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
- Medical Science Research Center (MRC), Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Pei-Jun Liu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Zhuo-Li Zhang
- Radiological Sciences, Chao Family Comprehensive Cancer Center, University of California (Irvine)USA
| | - Yi-Ning Wang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
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Wang Y, Wang JW, Li Y, Tian XH, Feng XS, Zhang SC, Liu PJ, Xue WJ, Zheng J, Ding XM. Bone marrow-derived mesenchymal stem cells improve rat islet graft revascularization by upregulating ISL1. Stem Cells 2021; 39:1033-1048. [PMID: 33754392 DOI: 10.1002/stem.3378] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 03/01/2021] [Indexed: 11/12/2022]
Abstract
Revascularization of the islet transplant is a crucial step that defines the success rate of patient recovery. Bone marrow-derived mesenchymal stem cells (BMSCs) have been reported to promote revascularization; however, the underlying cellular mechanism remains unclear. Moreover, our liquid chromatography-tandem mass spectrometry results showed that BMSCs could promote the expression of insulin gene enhancer binding protein-1 (ISL1) in islets. ISL1 is involved in islets proliferation and plays a potential regulatory role in the revascularization of islets. This study identifies the ISL1 protein as a potential modulator in BMSCs-mediated revascularization of islet grafts. We demonstrated that the survival rate and insulin secretion of islets were increased in the presence of BMSCs, indicating that BMSCs promote islet revascularization in a coculture system and rat diabetes model. Interestingly, we also observed that the presence of BMSCs led to an increase in ISL1 and vascular endothelial growth factor A (VEGFA) expression in both islets and the INS-1 rat insulinoma cell line. In silico protein structure modeling indicated that ISL1 is a transcription factor that has four binding sites with VEGFA mRNA. Further results showed that overexpression of ISL1 increased both the abundance of VEGFA transcripts and protein accumulation, while inhibition of ISL1 decreased the abundance of VEGFA. Using a ChIP-qPCR assay, we demonstrated that direct molecular interactions between ISL1 and VEGFA occur in INS-1 cells. Together, these findings reveal that BMSCs promote the expression of ISL1 in islets and lead to an increase in VEGFA in islet grafts. Hence, ISL1 is a potential target to induce early revascularization in islet transplantation.
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Affiliation(s)
- Ying Wang
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jing-Wen Wang
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Yang Li
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Xiao-Hui Tian
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Xin-Shun Feng
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Shu-Cong Zhang
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Wu-Jun Xue
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jin Zheng
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
| | - Xiao-Ming Ding
- Department of Renal Transplantation, Hospital of Nephrology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, People's Republic of China
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Mu X, Wang H, Liu PJ, Shi JZ. The interval between insemination and ovulation predicts outcome after intrauterine insemination with donor sperm (IUI-D). Int J Gynaecol Obstet 2021; 156:341-348. [PMID: 33547802 DOI: 10.1002/ijgo.13641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/25/2020] [Accepted: 02/04/2021] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To identify whether the time interval from insemination to ovulation (I-O interval) affects outcome after intrauterine insemination with donor sperm (IUI-D). METHODS A retrospective study was conducted in a public assisted reproductive medicine center between January, 2014 and December, 2016 in Xi'an, China. The data were collected from the medical records and generalized estimating equations (GEEs) were used to evaluate the effects of various variables on IUI outcome. RESULTS A total of 2091 IUI-D cycles from 1165 couples were included in this study. Multiple predictors were identified for (live birth rate) LBR. The I-O interval was the predictor for LBR. An I-O interval ≥19 h significantly decreased CPR (odds ratio [OR], 95% confidence interval [CI]: 0.29, 0.17-0.48) and LBR (OR, 95% CI: 0.32, 0.19-0.55). The presence of at least two follicles ≥18 mm on ovulation day significantly increased the LBR (OR, 95%CI: 1.27, 1.01-1.60). Women aged 35 years and older had a significantly decreased LBR (OR, 95% CI: 0.61, 0.38-0.98). CONCLUSION The I-O interval, a new prognostic factor, in combination with the woman's age and number of mature follicles, can predict the outcome after IUI-D. IUI-D is best performed within 19 h of I-O interval for a higher probability of clinical pregnancy and live birth.
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Affiliation(s)
- Xin Mu
- The Assisted Reproductive Medicine Center, Northwest Women's and Children's Hospital, Xi'an, People's Republic of China.,Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Hui Wang
- The Assisted Reproductive Medicine Center, Northwest Women's and Children's Hospital, Xi'an, People's Republic of China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Juan-Zi Shi
- The Assisted Reproductive Medicine Center, Northwest Women's and Children's Hospital, Xi'an, People's Republic of China
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Tian BX, Sun W, Wang SH, Liu PJ, Wang YC. Differential expression and clinical significance of COX6C in human diseases. Am J Transl Res 2021; 13:1-10. [PMID: 33527004 PMCID: PMC7847502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Mitochondria, independent double-membrane organelles, are intracellular power plants that feed most eukaryotic cells with the ATP produced via the oxidative phosphorylation (OXPHOS). Consistently, cytochrome c oxidase (COX) catalyzes the electron transfer chain's final step. Electrons are transferred from reduced cytochrome c to molecular oxygen and play an indispensable role in oxidative phosphorylation of cells. Cytochrome c oxidase subunit 6c (COX6C) is encoded by the nuclear genome in the ribosome after translation and is transported to mitochondria via different pathways, and eventually forms the COX complex. In recent years, many studies have shown the abnormal level of COX6C in familial hypercholesterolemia, chronic kidney disease, diabetes, breast cancer, prostate cancer, uterine leiomyoma, follicular thyroid cancer, melanoma tissues, and other conditions. Its underlying mechanism may be related to the cellular oxidative phosphorylation pathway in tissue injury disease. Here reviews the varied function of COX6C in non-tumor and tumor diseases.
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Affiliation(s)
- Bi-Xia Tian
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
| | - Wei Sun
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
| | - Shu-Hong Wang
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
| | - Yao-Chun Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
- Key Laboratory for Tumor Precision Medicine of Shaanxi Province of Xi’an Jiaotong UniversityXi’an 710061, Shaanxi Province, P. R. China
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Sun W, Tian BX, Wang SH, Liu PJ, Wang YC. The function of SEC22B and its role in human diseases. Cytoskeleton (Hoboken) 2020; 77:303-312. [PMID: 32748571 DOI: 10.1002/cm.21628] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/14/2020] [Accepted: 07/29/2020] [Indexed: 01/04/2023]
Abstract
Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins are a large protein complex that is involved in the membrane fusion in vesicle trafficking, cell growth, cytokinesis, membrane repair, and synaptic transmission. As one of the SNARE proteins, SEC22B functions in membrane fusion of vesicle trafficking between the endoplasmic reticulum and the Golgi apparatus, antigen cross-presentation, secretory autophagy, and other biological processes. However, apart from not being SNARE proteins, there is little knowledge known about its two homologs (SEC22A and SEC22C). SEC22B alterations have been reported in many human diseases, especially, many mutations of SEC22B in human cancers have been detected. In this review, we will introduce the specific functions of SEC22B, and summarize the researches about SEC22B in human cancers and other diseases. These findings have laid the foundation for further studies to clarify the exact mechanism of SEC22B in the pathological process and to seek new therapeutic targets and better treatment strategies.
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Affiliation(s)
- Wei Sun
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Bi-Xia Tian
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Shu-Hong Wang
- Department of Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
| | - Yao-Chun Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an Jiaotong University, Xi'an, China
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Lu Y, Chen R, Ma JY, Wang LP, Qiu LL, Wang CP, Yan JC, Liu PJ. [Platelet derived growth factor-BB regulates phenotype transformation of pulmonary artery smooth muscle cells via SIRT3 affecting glycolytic pathway]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 47:993-999. [PMID: 31877596 DOI: 10.3760/cma.j.issn.0253-3758.2019.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate whether platelet-derived growth factor-BB (PDGF-BB) can regulate phenotypic transformation of pulmonary artery smooth muscle cells (PASMCs) via SIRT3 affecting glycolytic pathway. Methods: The PASMCs were isolated from Sprague Dawley rats. PASMCs were divided into 3 groups by using 2-deoxyglucose (2-DG), an inhibitor of the glycolytic pathway: normal control group, PDGF-BB group(30 ng/ml) and PDGF-BB (30 ng/ml)+2-DG (10 mmol/L) group. In lentivirus-mediated overexpression assay, cells were divided into control group, PDGF-BB group(30 ng/ml), PDGF-BB+deacetylase sirtuin-3 (SIRT3) overexpression group and PDGF-BB+empty vector group. The expression levels of phenotype related index such as α-smooth muscle actin (α-SMA), smooth muscle myosin heavy chain (SM-MHC), calponin, vimentin were detected by qRT-PCR and Western blot. Meanwhile, the expression of α-SMA was detected by cellular immunofluorescence staining. EDU staining was used to detect the proliferation of PASMCs. The expression of SIRT3 was detected by Western blot. The expressions of glucose transporter 1 and aerobic glycolytic enzymes were detected by qRT-PCR and Western blot in lentivirus-mediated overexpression assay. Results: (1) PDGF-BB affects PASMCs phenotypic transformation through glycolytic pathway: compared with normal control group, PDGF-BB significantly decreased the expressions of contractile phenotype markers such as α-SMA, SM-MHC, calponin mRNA and protein (all P<0.05), but it increased the expressions of the synthetic phenotype marker vimentin mRNA and protein (both P<0.05). Cellular immunofluorescence assay showed that PDGF-BB significantly decreased the number of α-SMA positive cells, while 2-DG reversed the process. (2) PDGF-BB promoted cell proliferation through glycolytic pathway: the proliferation of PASMCs was significantly higher in PDGF-BB group than in control group (P<0.05), and which could be significantly reduced by 2-DG (P<0.05). (3) PDGF-BB inhibited the expression of SIRT3 protein in PASMCs: the expression of SIRT3 protein in PDGF-BB group was lower than that in control group (P<0.05). (4) PDGF-BB affected glycolytic pathway through SIRT3:compared with the control group, PDGF-BB significantly increased the expression levels of glucose transporter 1 (Glut1), hexokinase 2 (HK2) and 6-phosphfructo-2-kinase 3 (PFKFB3) mRNA (all P<0.05), which was reserved by over-expression of SIRT3. There were no significant difference in mRNA expression levels between PDGF-BB group and PDGF-BB+empty vector group (P>0.05).Compared with the control group, PDGF-BB significantly increased the expression levels of Glut1, HK2 and PFKFB3 protein(all P<0.05), which was reserved by over-expression of SIRT3. There were no significant differences in protein expression levels between PDGF-BB group and PDGF-BB+empty vector group (all P>0.05). Conclusion: PDGF-BB regulates phenotypic transformation of PASMCs via SIRT3 affecting glycolytic pathway.
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Affiliation(s)
- Y Lu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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10
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Ma Q, Gu JT, Wang B, Feng J, Yang L, Kang XW, Duan P, Sun X, Liu PJ, Wang JC. PlGF signaling and macrophage repolarization contribute to the anti-neoplastic effect of metformin. Eur J Pharmacol 2019; 863:172696. [PMID: 31562866 DOI: 10.1016/j.ejphar.2019.172696] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 01/05/2023]
Abstract
Placental growth factor (PlGF) related signaling pathway has been shown to have close relationship with the progression of cancers. Metformin has been reported to have an inhibitory effect on PlGF expression in a breast cancer model. However, little is known about whether the anti-neoplastic activity of metformin is contributed by its inhibitory effect on PlGF expression. Protein, mRNA and secretion levels of PlGF were tested and the proliferation of cancer cells was determined. After treatment of metformin, BALB/c mice bearing 4T1 tumors were sacrificed and immunohistochemistry staining of the tumor sections was obtained. Baseline expression of autocrine PlGF varied between different breast cancer cell lines, while the expression of vascular endothelial growth factor receptor-1 (VEGFR-1) was comparable between cell lines. Other clinical data showed that the expression of PlGF other than VEGFR-1 had a prognostic value for patients with breast cancers. Metformin significantly decreased the secretion and mRNA levels of PlGF, which greatly contributed to its inhibitory effect on the proliferation of breast cancer cells with high P1GF expression. The unresponsiveness of tumor cells with low PlGF expression to genetic silencing was reversed by the supplementation of exogenous PlGF. Systemic metformin administration apparently inhibited the in vivo growth of 4T1 carcinoma, which was accompanied by the repolarization of macrophages from M2 to M1. These findings indicated that both autocrine and paracrine PlGF signaling and macrophage repolarization are involved in the progression of breast cancer, which could be targeted by metformin.
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Affiliation(s)
- Qiang Ma
- Department of peripheral vascular diseases, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Jing-Tao Gu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Bo Wang
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Jun Feng
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Lin Yang
- Department of psychiatry, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Xiao-Wei Kang
- Education Administration Office, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Peng Duan
- Emergency Department, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Xin Sun
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
| | - Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China; Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, PR China.
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11
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Wang JC, Li GY, Wang B, Han SX, Sun X, Jiang YN, Shen YW, Zhou C, Feng J, Lu SY, Liu JL, Wang MD, Liu PJ. Metformin inhibits metastatic breast cancer progression and improves chemosensitivity by inducing vessel normalization via PDGF-B downregulation. J Exp Clin Cancer Res 2019; 38:235. [PMID: 31164151 PMCID: PMC6549289 DOI: 10.1186/s13046-019-1211-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022]
Abstract
Background Vascular maturity and functionality are closely associated with tumor progression and chemosensitivity. The antidiabetic agent metformin has shown its ability to inhibit tumor angiogenesis in metastatic breast cancer models. However, it remains unclear if or how metformin remodels the abnormal vasculature of metastatic breast cancer, while inhibiting angiogenesis. Methods Metastatic breast cancer models were constructed to compare microvessel density (MVD), vascular maturity and function, lung metastasis and chemosensitivity in metformin-treated or untreated mice. Protein array assay and transcriptome sequencing were performed for genetic screening. Lentiviral shRNA-PDGF-B transfection was used for observing the contribution of PDGF-B knockdown to metformin’s vascular effects. Results Metastatic breast cancers were characterized by an excessively angiogenic, immature and morphologically abnormal vasculature. Compared to control, metformin significantly reduced MVD, leakage and hypoxia, and increased vascular mural cells coverage and perfusion, namely, “vessel normalization”. Metformin at human blood concentrations had no direct effect on the migration and proliferation of cancer cells. Based on that, reduced lung metastasis of the primary tumor and improved chemosensitization by metformin were assumed to be mediated via metformin’s vascular effects. Further results of genetic screening and in vivo experiments showed that the downregulation of platelet-derived growth factor B (PDGF-B) greatly contributed to the metformin-induced vessel normalization. Conclusions These findings provide pre-clinical evidences for the vascular mechanism of metformin-induced metastasis inhibition and the chemosensitization of metastatic breast cancers. Electronic supplementary material The online version of this article (10.1186/s13046-019-1211-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China.,Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China
| | - Guang-Yue Li
- Department of Science and Technology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Bo Wang
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China
| | - Su-Xia Han
- Department of Oncological Radiotherapy, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Xin Sun
- Department of Thoracic Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Yi-Na Jiang
- Department of Pathology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Yan-Wei Shen
- Department of Breast Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Can Zhou
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Jun Feng
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Shao-Ying Lu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Jian-Lin Liu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi Province, China
| | - Mao-De Wang
- Department of Neurosurgery, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China.
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China. .,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 of the Western Yanta Road, Xi'an, 710061, Shaanxi Province, China.
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12
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Wang JC, Sun X, Ma Q, Fu GF, Cong LL, Zhang H, Fan DF, Feng J, Lu SY, Liu JL, Li GY, Liu PJ. Metformin's antitumour and anti-angiogenic activities are mediated by skewing macrophage polarization. J Cell Mol Med 2018; 22:3825-3836. [PMID: 29726618 PMCID: PMC6050465 DOI: 10.1111/jcmm.13655] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/26/2018] [Indexed: 12/31/2022] Open
Abstract
Beneficial effects of metformin on cancer risk and mortality have been proved by epidemiological and clinical studies, thus attracting research interest in elucidating the underlying mechanisms. Recently, tumour‐associated macrophages (TAMs) appeared to be implicated in metformin‐induced antitumour activities. However, how metformin inhibits TAMs‐induced tumour progression remains ill‐defined. Here, we report that metformin‐induced antitumour and anti‐angiogenic activities were not or only partially contributed by its direct inhibition of functions of tumour and endothelial cells. By skewing TAM polarization from M2‐ to M1‐like phenotype, metformin inhibited both tumour growth and angiogenesis. Depletion of TAMs by clodronate liposomes eliminated M2‐TAMs‐induced angiogenic promotion, while also abrogating M1‐TAMs‐mediated anti‐angiogenesis, thus promoting angiogenesis in tumours from metformin treatment mice. Further in vitro experiments using TAMs‐conditioned medium and a coculture system were performed, which demonstrated an inhibitory effect of metformin on endothelial sprouting and tumour cell proliferation promoted by M2‐polarized RAW264.7 macrophages. Based on these results, metformin‐induced inhibition of tumour growth and angiogenesis is greatly contributed by skewing of TAMs polarization in microenvironment, thus offering therapeutic opportunities for metformin in cancer treatment.
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Affiliation(s)
- Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China.,Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Xin Sun
- Department of Thoracic Surgery and Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Qiang Ma
- Department of Peripheral Vascular Diseases, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Gui-Feng Fu
- Medical Imaging Department, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Long-Long Cong
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Hong Zhang
- Department of Neurology, First Hospital of Yulin City, Yulin City, Shaanxi Province, China
| | - De-Fu Fan
- Department of Neurosurgery, People's Hospital of Qu Wo Country, Linfen City, Shanxi Province, China
| | - Jun Feng
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Shao-Ying Lu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Jian-Lin Liu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Guang-Yue Li
- Department of Science and Technology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
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13
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Wang JC, Li XX, Sun X, Li GY, Sun JL, Ye YP, Cong LL, Li WM, Lu SY, Feng J, Liu PJ. Activation of AMPK by simvastatin inhibited breast tumor angiogenesis via impeding HIF-1α-induced pro-angiogenic factor. Cancer Sci 2018. [PMID: 29532562 PMCID: PMC5980150 DOI: 10.1111/cas.13570] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Substantial data from preclinical studies have revealed the biphasic effects of statins on cardiovascular angiogenesis. Although some have reported the anti‐angiogenic potential of statins in malignant tumors, the underlying mechanism remains poorly understood. The aim of this study is to elucidate the mechanism by which simvastatin, a member of the statin family, inhibits tumor angiogenesis. Simvastatin significantly suppressed tumor cell‐conditioned medium‐induced angiogenic promotion in vitro, and resulted in dose‐dependent anti‐angiogenesis in vivo. Further genetic silencing of hypoxia‐inducible factor‐1α (HIF‐1α) reduced vascular endothelial growth factor and fibroblast growth factor‐2 expressions in 4T1 cells and correspondingly ameliorated HUVEC proliferation facilitated by tumor cell‐conditioned medium. Additionally, simvastatin induced angiogenic inhibition through a mechanism of post‐transcriptional downregulation of HIF‐1α by increasing the phosphorylation level of AMP kinase. These results were further validated by the fact that 5‐aminoimidazole‐4‐carboxamide ribonucleotide reduced HIF‐1α protein levels and ameliorated the angiogenic ability of endothelial cells in vitro and in vivo. Critically, inhibition of AMPK phosphorylation by compound C almost completely abrogated simvastatin‐induced anti‐angiogenesis, which was accompanied by the reduction of protein levels of HIF‐1α and its downstream pro‐angiogenic factors. These findings reveal the mechanism by which simvastatin induces tumor anti‐angiogenesis, and therefore identifies the target that explains the beneficial effects of statins on malignant tumors.
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Affiliation(s)
- Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiong-Xiong Li
- Department of Breast Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xin Sun
- Department of Thoracic Surgery and Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Guang-Yue Li
- Department of Science and Technology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jing-Lan Sun
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yuan-Peng Ye
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Long-Long Cong
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei-Ming Li
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shao-Ying Lu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jun Feng
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Chen ZL, Yang J, Shen YW, Li ST, Wang X, Lv M, Wang BY, Li P, Zhao W, Qiu RY, Liu Y, Liu PJ, Yang J. AmotP130 regulates Rho GTPase and decreases breast cancer cell mobility. J Cell Mol Med 2018; 22:2390-2403. [PMID: 29377471 PMCID: PMC5867092 DOI: 10.1111/jcmm.13533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 12/14/2017] [Indexed: 12/17/2022] Open
Abstract
Angiomotin (Amot) is a newly discovered, multifunctional protein that is involved in cell migration and angiogenesis. However, the role of its isoform, AmotP130, in the regulation of cytoskeleton and metastasis of breast cancer, is unclear. The aim of this study was to investigate the role of AmotP130 in the reorganization of the actin cytoskeleton and the changes of morphology in breast cancer cells through the Rho pathway that influences the invasion and migration of cells. The results suggested that AmotP130 suppressed the invasion ability through remodelling the cytoskeleton of breast cancer cells, including the actin fibre organization and focal adhesion protein turnover. Global transcriptome changes in breast cancer cells following knockdown of AmotP130 identified pathways related with the cytoskeleton and cell motility that involved the Rho GTPase family. From database analyses, changes in the Rho GTPase family of proteins were identified as possible prognostic factors in patients with breast cancer. We have been suggested that AmotP130 suppressed the invasion ability through remodelling of the cytoskeleton of breast cancer cells, involving regulation of the Rho pathway. The cytoskeleton-related pathway components may provide novel, clinically therapeutic targets for breast cancer treatment.
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Affiliation(s)
- Zhe-Ling Chen
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jiao Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan-Wei Shen
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shu-Ting Li
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xin Wang
- Department of Oncology, Shangluo Central Hospital, Shangluo, Shaanxi, China
| | - Meng Lv
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bi-Yuan Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pan Li
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wen Zhao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Rui-Yue Qiu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu Liu
- Department of Biology & Biochemistry, University of Houston, Houston, TX, USA
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi, China
| | - Jin Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Tew KS, Siao YJ, Liu PJ, Lo WT, Meng PJ. Taiwanese marine microbenthic algal communities remain similar yet chlorophyll a concentrations rise in mesocosms with elevated CO 2 and temperature. Mar Pollut Bull 2017; 124:929-937. [PMID: 28669477 DOI: 10.1016/j.marpolbul.2017.06.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 06/14/2017] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
The effects of increasing CO2 concentrations and temperature on microalgal assemblages were examined in Taiwan using mesocosms that simulate coral reef ecosystem. We assessed changes in abundance and diversity of benthic algae grown at 25°C and 28°C, under ambient (~400μatm) and at high CO2 conditions (800-1000μatm). Total alkalinity, pCO2, and the aragonite saturation state, were all significantly different between control and high CO2 treatments in both temperature treatments. Chl a concentration increased significantly in CO2-treated groups at 25°C, but benthic microalgal abundance was not significantly different. The number of microalgal species and the microalgal community structure did not differ between control and CO2-treated groups at both temperatures. Our results suggest that increasing CO2 may boost benthic microalgal primary productivity if sufficient nutrients are available, although site-specific responses are difficult to predict.
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Affiliation(s)
- K S Tew
- National Museum of Marine Biology & Aquarium, Taiwan; National Dong Hwa University, Taiwan.
| | - Y J Siao
- National Sun Yat-sen University, Taiwan
| | - P J Liu
- National Museum of Marine Biology & Aquarium, Taiwan; National Dong Hwa University, Taiwan.
| | - W T Lo
- National Sun Yat-sen University, Taiwan
| | - P J Meng
- National Museum of Marine Biology & Aquarium, Taiwan; National Dong Hwa University, Taiwan
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16
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Zhao Y, Liang Y, Xu LJ, Wang ZQ, Liu PJ, Yan JC. [Feasibility and efficacy of the regional cooperative ST-segment elevation myocardial infarction rescue network among the prefectural-level city hospitals]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:706-709. [PMID: 28851189 DOI: 10.3760/cma.j.issn.0253-3758.2017.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility and efficacy of the establishment of regional cooperative acute ST-segment elevation myocardial infarction (STEMI) rescue network among the prefectural-level city hospitals in China. Methods: Based on real-time remote electrocardiogram transmission and "120" emergency systems, we established a regional collaborative STEMI treatment network with our hospital as the network unclears including 8 second-class affiliated hospitals of Jiangsu University in 2013. STEMI treatment time, therapeutic effects and economic indexes were compared before (from January 2010 to December 2012, 180 cases, pre-network) and after (From January 2013 to December 2015, 374 cases, post-network) the establishment of the regional collaborative STEMI treatment network. Results: Post establishment of the rescue network, mean first medical contact (FMC) to balloon (FMC-to-B) time, referral time and obtaining informed consent time were all significantly decreased from (191±41), (94±18), (25±9) minutes to (93±19), (53±18), (7±5) minutes, respectively, in comparison with the pre-network era(all P<0.05). There was a trend of prolonged FMC-to-B time in proportion to aging of STEMI patients(trend P<0.05). Three months post discharge, LVEF was higher (55.3%±10.7% vs. 48.8%±12.1%, P<0.05) and LVEDd was lower ((49.1±10.8)mm vs.(51.8±9.2)mm, P<0.05) in the post-network group compared to pre-network group.In-hospital mortality was also significantly reduced post the establishment of the rescue network (2.14%(8/374) vs. 3.89%(7/180), P<0.05). The results also showed that the total costs (42 017(25 069, 75 148)yuan vs.51 030(28 137, 105 861)yuan), days of hospitalization ((9.1±4.5) days vs. (15.3±4.8)days) and percentage of medicine and consumables were all significantly decreased in the post-network group compared to pre-network group(all P<0.05). Conclusion: Establishment of the regional cooperative rescue network is feasible among the prefectural-level city hospitals in China. Establishment of such network can improve the prognosis and decrease the FMC-to-B time, the rate of in-hospital mortality and financial burden of patients with STEMI, and serves as an effective strategy to improve the rescue ability for STEMI patients.
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Affiliation(s)
- Y Zhao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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17
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Wang JC, Li GY, Li PP, Sun X, Li WM, Li Y, Lu SY, Liu PJ. Suppression of hypoxia-induced excessive angiogenesis by metformin via elevating tumor blood perfusion. Oncotarget 2017; 8:73892-73904. [PMID: 29088755 PMCID: PMC5650310 DOI: 10.18632/oncotarget.18029] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 05/09/2017] [Indexed: 12/22/2022] Open
Abstract
The anti-diabetic metformin has been demonstrated to be effective in suppression of tumor progression via multiple mechanisms, in which angiogenic inhibition is involved. Hypoxia is a common feather of malignant tumor and promotes angiogenesis via induction of pro-angiogenic factors. However, the effect of metformin on tumor hypoxia and the association with angiogenic inhibition are still unclear. In the current study, we investigated the effects of metformin on both tumor blood perfusion and hypoxia-induced excessive angiogenesis. In the tumor region adjacent to necrosis, aberrantly excessive angiogenesis resulted from hypoperfusion-induced intense hypoxia and greatly contributed to the high average levels of both microvessel density and vascular branch density. Metformin administration increased the percentage of lectin-perfused vessels and reduced hypoxyprobe-positive area. This metformin-induced amelioration of hypoxia was accompanied by a significant reduction in expressions of both HIF-1α and angiogenesis-associated factors (AAFs). Consequently, inhibited excessive angiogenesis in hypoxic peri-necrotic region was observed in metformin-treated tumor. Further stable knockdown of HIF-1α abrogated hypoxia-induced AAFs in vitro and reduced both microvessel density and area of fitc-conjugated dextran that leaked outside the vascular lumen. Taken together, metformin ameliorated tumor hypoxia and restrained HIF-1α-induced expressions of AAFs through elevating tumor blood perfusion, thus suppressing the excessive tumor angiogenesis.
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Affiliation(s)
- Ji-Chang Wang
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China.,Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Guang-Yue Li
- Department of Science and Technology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Ping-Ping Li
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Xin Sun
- Department of Thoracic Surgery and Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Wei-Ming Li
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Yan Li
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Shao-Ying Lu
- Department of Vascular Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
| | - Pei-Jun Liu
- Center for Translational Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, 710061, P.R.China
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18
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Xie QF, Chen R, Lu Y, Yan JC, Liu S, Li M, Song J, Shao C, Wang ZQ, Liu PJ. [Docosahexaenoic acid inhibits hypoxia-induced pulmonary arterial smooth muscle cells phenotype switching by inhibiting NFATc1 signaling]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:148-153. [PMID: 28260322 DOI: 10.3760/cma.j.issn.0253-3758.2017.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the molecular mechanism of docosahexaenoic acid (DHA) on regulating the phenotype switching of hypoxia-induced pulmonary arterial smooth muscle cells (PASMCs). Methods: The PASMCs were isolated from Sprague Dawley rats. PASMCs were divided into five groups: normal control group, hypoxia group (1%O(2, )94%N(2, )5% CO(2) stimulation for 12 hours), hypoxia+ DHA group (10 μmol/L DHA pretreatment followed by 12 hours hypoxia), hypoxia+ DHA+ NFATc1 overexpression group (transfection of the NFATc1 lentivirus for 24 hours, followed by hypoxia stimulation for 12 hours after 10 μmol/L DHA treatment), and hypoxia+ DHA+ siNFATc1 group (transfection the siNFATc1 for 24 hours, followed by hypoxia stimulation for 12 hours after 10 μmol/L DHA treatment). The hypoxia stimulation was achieved by use of a special hypoxia incubator (1%O(2, )94%N(2, )5%CO(2)). The expressions of NFATc1 of various groups were determined by qRT-PCR and Western blot. The expression of α-SMA was determined by immunofluorescence staining, qRT-PCR and Western blot. The expression of SM22 was determined by qRT-PCR. The proliferation of PASMC was determined by EDU staining. Results: The mRNA and protein expression levels of NFATc1 were significantly upregulated in hypoxia group compared with the normal control group (P<0.05), while hypoxia-induced upregulation of NFTAc1 could be significantly downregulated by DHA treatment (P<0.05). The α-SMA positive cell number, protein and mRNA levels of α-SMA and the mRNA level of SM22 were significantly lower in the hypoxia group than in normal control group, which could be significantly reversed by DHA, the protective effects could then be abolished by NFATc1 overexpression. Above indices were significantly lower in the hypoxia+ DHA+ siNFATc1 group than in hypoxia+ DHA+ NFATc1 overexpression group (P<0.05). The proliferation of PASMCs was significantly higher in the hypoxia group than in the control group (P<0.05), and which could be significantly reduced by DHA (P<0.05), and the protective effect of DHA could be significantly abolished by overexpression of NFATc1 (P<0.05). The proliferation of PASMCs was significantly lower in the hypoxia+ DHA+ siNFATc1 group than in the hypoxia+ DHA+ overexpression NFATc1 group (P<0.05). Conclusion: DHA could prevent hypoxia-induced PASMCs phenotype switching and proliferation by inhibiting NFATc1 signaling.
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Affiliation(s)
- Q F Xie
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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19
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Liu PJ, Ma F, Lou HP, Zhu YN. Body roundness index and body adiposity index: two new anthropometric indices to identify metabolic syndrome among Chinese postmenopausal women. Climacteric 2016; 19:433-9. [PMID: 27410775 DOI: 10.1080/13697137.2016.1202229] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Body roundness index (BRI) and body adiposity index (BAI) have been recently proposed to assess obesity. The objectives of this cross-sectional study were to compare their potential for identifying metabolic syndrome (MetS) with traditional obesity indices in Chinese postmenopausal women. METHODS A total of 817 participants were involved in this study. Odds ratio and corresponding 95% confidence intervals (CI) between MetS and all indices were evaluated by binary logistic regression analysis. Receiver operating characteristic curve and area under curve (AUC) were employed to evaluate the abilities to identify MetS among all the indices. The differences in the AUC values between traditional indices and BAI as well as BRI were also evaluated. RESULTS The upper values of all indices were significantly associated with the presence of MetS after adjusting for potential confounders, except for BAI. There were no significant differences in the AUC values between BRI and the traditional indices; however, the AUC values of all the traditional indices were significantly larger than that of BAI. CONCLUSIONS Neither BAI nor BRI was superior to traditional obesity indices for predicting MetS. BAI showed the weakest predictive ability, while BRI showed potential for use as an alternative obesity measure in assessment of MetS.
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Affiliation(s)
- P J Liu
- a Department of Clinical Nutrition
| | - F Ma
- a Department of Clinical Nutrition
| | - H P Lou
- b Department of Medical Examination Center
| | - Y N Zhu
- c Department of Obstetrics and Gynecology , Peking Union Medical College Hospital, China Academic Medical Science and Peking Union Medical College , Beijing , PR China
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20
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Shen YW, Zhang XM, Lv M, Chen L, Qin TJ, Wang F, Yang J, Liu PJ, Yang J. Utility of gonadotropin-releasing hormone agonists for prevention of chemotherapy-induced ovarian damage in premenopausal women with breast cancer: a systematic review and meta-analysis. Onco Targets Ther 2015; 8:3349-59. [PMID: 26622183 PMCID: PMC4654551 DOI: 10.2147/ott.s95936] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Premature ovarian failure and infertility following chemotherapy are major concerns for premenopausal women with breast cancer. A potential ovarian function preservation strategy is administration of gonadotropin-releasing hormone (GnRH) agonists during adjuvant chemotherapy; however, studies of the clinical efficacy of GnRH agonists to protect chemotherapy-induced ovarian damage have shown mixed results. Objective This meta-analysis study was designed to estimate the efficacy of GnRH agonists administered concurrently with chemotherapy to prevent chemotherapy-induced ovarian damage in premenopausal women with breast cancer. Methods Electronic literature databases (PubMed, EMBASE, MEDLINE, Cochrane Library databases searching, China National Knowledge Infrastructure, Web of Science, and the Wanfang Data) were searched for relevant randomized controlled trials (RCTs) published until September 2015. Only RCTs that examined the effect of GnRH agonists for chemotherapy-induced ovarian failure in premenopausal women with breast cancer were selected. The rate of spontaneous resumption of menses and spontaneous pregnancy were collected. All data were analyzed by RevMan 5.3 (Cochrane Collaboration, Copenhagen, Denmark) and Stata 12.0 (StataCorp, College Station, TX, USA). Results Eleven RCTs with a total of 1,062 participants (GnRH agonists administered concurrently with chemotherapy, n=541; chemotherapy alone, n=521) were included in the meta-analysis. A significantly greater number of women treated with GnRH agonist experienced spontaneous resumption of menses after the adjuvant chemotherapy, yielding a pooled odds ratio of 2.57 (versus chemotherapy alone, 95% confidence interval (CI)=1.65, 4.01; P<0.0001). A subgroup analysis showed that addition of GnRH agonists significantly improved the resumption of menses rate in patients who were hormone-insensitive. However, the two treatment groups experienced similar spontaneous pregnancy (odds ratio =0.177; 95% CI=0.92, 1.40; P=0.09). Conclusion GnRH agonists cotreatment with chemotherapy in premenopausal women with breast cancer plays a beneficial role in resumption of ovarian function, with a higher rate of resumption of menses. However, treatment with GnRH agonists does not appear to exhibit its protective effects in fertility.
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Affiliation(s)
- Yan-Wei Shen
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Xiao-Man Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Meng Lv
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Ling Chen
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Tian-Jie Qin
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Fan Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jiao Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Jin Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, People's Republic of China
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21
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Liu Y, Zhang J, Zhou YH, Jiang YN, Zhang W, Tang XJ, Ren Y, Han SP, Liu PJ, Xu J, He JJ. IL-6/STAT3 signaling pathway is activated in plasma cell mastitis. Int J Clin Exp Pathol 2015; 8:12541-12548. [PMID: 26722442 PMCID: PMC4680387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 09/25/2015] [Indexed: 06/05/2023]
Abstract
Plasma cell mastitis (PCM), a particular type of mastitis, mainly occurs in females at nonpregnant and nonlactating stages. The infiltration of abundant plasma cells and lymphocytes is the hallmark of the disease. The incidence rate of PCM increased gradually and its pathogenesis remained unclear. In this study, we investigated the expression of IL-6/STAT3 signaling pathway, which is vital not only for the differentiation of plasma cells but also for survival of plasma cells and T lymphocytes, in 30 PCM cases, 10 acute mastitis cases and 10 normal breast tissues by immunohistochemical analysis. IL-6 level was significantly higher in PCM patients than in acute mastitis patients or normal group. The positive rate of IL-6 and p-STAT3 staining in PCM samples was 93.3% (28/30) and 70% (21/30), respectively, and there was a significant positive association between IL-6 and p-STAT3 staining (r=0.408, P=0.025). In PCM group, the rate of nipple retraction was 40% (12/30). Significantly higher IL-6 expression was found in PCM patients with nipple retraction than in other PCM patients. However, no significant difference in IL-6 or p-STAT3 staining was detected between PCM patients experiencing recurrence and other PCM patients. In addition, Bcl-2 level was higher in PCM patients than in acute mastitis patients or normal group, but there was no difference in Bcl-2 immunostaining between PCM patients experiencing recurrence and other PCM patients. These indicate that IL-6/STAT3 signaling is activated in PCM and may play an important role in the pathogenesis of PCM.
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Affiliation(s)
- Yang Liu
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Jian Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Yu-Hui Zhou
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Yi-Na Jiang
- Department of Pathology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Wei Zhang
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Xiao-Jiang Tang
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Yu Ren
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Shui-Ping Han
- Department of Pathology, School of Medicine, Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Pei-Jun Liu
- Translational Medical Center, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Jing Xu
- Department of Geriatrics, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
| | - Jian-Jun He
- Department of Breast Surgery, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, China
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22
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Shen YW, Sui YX, Zhang XM, Lv M, Zhang X, Liu PJ, Yang J. Ipsilateral breast metastasis from a pulmonary adenocarcinoma: a case report and a focused review of the literature. Int J Clin Exp Pathol 2015; 8:9647-9654. [PMID: 26464732 PMCID: PMC4583964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 07/20/2015] [Indexed: 06/05/2023]
Abstract
Metastases to the breast from extramammary malignancies are extremely rare. Ruling out the diagnosis of primary breast tumor is important in order to decide on clinical management and predict prognosis. We report a case of metastasis to the breast from a pulmonary adenocarcinoma, with extensive micropapillary component, diagnosed concomitantly with the primary tumor. A 52 year-old female patient presented with mammary gland tingling and dyspnea accompanied with fatigued of 4 months duration and a nodular shadows in the front of the upper lobe was found on a chest computed tomography (CT) scan. The original clinical diagnosis was right breast cancer with lung and bone metastasis, or breast and lung double primary cancers. In addition,on physical examination a poorly defined mass was noted in the upper outer quadrant of the right breast. The patient underwent thoracocentesis and breast biopsy. By imageology, cytology, histology and immunohistochemistry, we diagnosed primary lung cancer with metastases to the right breast and bone. The metastatic anatomic sites demonstrated histologically extensive micropapillary component, which is recently recognized as an important prognostic factor. The patient was administered 4 cycles of cisplatin and docetaxel, although no clinical response was seen, the patient is still alive 9 months after diagnosis. The result of immunohistochemistry is a useful supplement in differential diagnosis.
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Affiliation(s)
- Yan-Wei Shen
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Yan-Xia Sui
- Department of Pathology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Xiao-Man Zhang
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Meng Lv
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Xiao Zhang
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Pei-Jun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
| | - Jin Yang
- Department of Oncology, The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, Shaanxi, P.R. China
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23
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Wang CI, Wang CL, Wu YC, Feng HP, Liu PJ, Chang YS, Yu JS, Yu CJ. Quantitative Proteomics Reveals a Novel Role of Karyopherin Alpha 2 in Cell Migration through the Regulation of Vimentin–pErk Protein Complex Levels in Lung Cancer. J Proteome Res 2015; 14:1739-51. [DOI: 10.1021/pr501097a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Chun-I Wang
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Chih-Liang Wang
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Yi-Cheng Wu
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Hsiang-Pu Feng
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Pei-Jun Liu
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Yu-Sun Chang
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Jau-Song Yu
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Chia-Jung Yu
- Molecular
Medicine Research Center, ‡Department of Cell and Molecular
Biology, and §Graduate Institute of Biomedical Sciences College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, ⊥Division of Thoracic & Cardiovascular Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
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Liu PJ, Chen CD, Wang CL, Wu YC, Hsu CW, Lee CW, Huang LH, Yu JS, Chang YS, Wu CC, Yu CJ. In-depth proteomic analysis of six types of exudative pleural effusions for nonsmall cell lung cancer biomarker discovery. Mol Cell Proteomics 2015; 14:917-32. [PMID: 25638566 DOI: 10.1074/mcp.m114.045914] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Indexed: 01/21/2023] Open
Abstract
Pleural effusion (PE), a tumor-proximal body fluid, may be a promising source for biomarker discovery in human cancers. Because a variety of pathological conditions can lead to PE, characterization of the relative PE proteomic profiles from different types of PEs would accelerate discovery of potential PE biomarkers specifically used to diagnose pulmonary disorders. Using quantitative proteomic approaches, we identified 772 nonredundant proteins from six types of exudative PEs, including three malignant PEs (MPE, from lung, breast, and gastric cancers), one lung cancer paramalignant PE, and two benign diseases (tuberculosis and pneumonia). Spectral counting was utilized to semiquantify PE protein levels. Principal component analysis, hierarchical clustering, and Gene Ontology of cellular process analyses revealed differential levels and functional profiling of proteins in each type of PE. We identified 30 candidate proteins with twofold higher levels (q<0.05) in lung cancer MPEs than in the two benign PEs. Three potential markers, MET, DPP4, and PTPRF, were further verified by ELISA using 345 PE samples. The protein levels of these potential biomarkers were significantly higher in lung cancer MPE than in benign diseases or lung cancer paramalignant PE. The area under the receiver-operator characteristic curve for three combined biomarkers in discriminating lung cancer MPE from benign diseases was 0.903. We also observed that the PE protein levels were more clearly discriminated in effusions in which the cytological examination was positive and that they would be useful in rescuing the false negative of cytological examination in diagnosis of nonsmall cell lung cancer-MPE. Western blotting analysis further demonstrated that MET overexpression in lung cancer cells would contribute to the elevation of soluble MET in MPE. Our results collectively demonstrate the utility of label-free quantitative proteomic approaches in establishing differential PE proteomes and provide a new database of proteins that can be used to facilitate identification of pulmonary disorder-related biomarkers.
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Affiliation(s)
- Pei-Jun Liu
- From the ‡Graduate Institute of Biomedical Sciences
| | - Chi-De Chen
- From the ‡Graduate Institute of Biomedical Sciences, **Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan
| | - Chih-Liang Wang
- §School of Medicine, ‡‡Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine
| | - Yi-Cheng Wu
- §§Department of Thoracic Surgery, Chang Gung Memorial Hospital, Linkou, Tao-Yuan, Taiwan
| | - Chia-Wei Hsu
- From the ‡Graduate Institute of Biomedical Sciences, **Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan
| | | | | | - Jau-Song Yu
- From the ‡Graduate Institute of Biomedical Sciences, ¶Department of Cell and Molecular Biology, and **Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan
| | - Yu-Sun Chang
- From the ‡Graduate Institute of Biomedical Sciences, **Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan
| | - Chih-Ching Wu
- **Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan;
| | - Chia-Jung Yu
- From the ‡Graduate Institute of Biomedical Sciences, ¶Department of Cell and Molecular Biology, and
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25
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Zhou C, Ren Y, Wang K, Liu J, He JJ, Liu PJ. Intra-operative rectal washout with saline solution can effectively prevent anastomotic recurrence: a meta-analysis. Asian Pac J Cancer Prev 2015; 14:7155-9. [PMID: 24460268 DOI: 10.7314/apjcp.2013.14.12.7155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Rectal washout with saline solution may theoretically prevent anastomotic recurrence in patients with resectable rectal cancer, although exact clinical effects have not yet been determined. In order to derive a more precise estimation of the relationship, the present meta-analysis was performed. METHOD Relevant studies were identified by a search of Medline, Embase and Google Website with no restrictions to September 1, 2013, and included in the systematic review and meta-analysis. RESULTS 5 trials (642 participants) were included to assess the association between rectal washout with saline solution and anastomotic recurrence. The rate of anastomotic recurrence (AR) was 6.23% (40/642), with the pooled OR derived from the five studies being 0.32 (95 % CI=0.15-0.70, P=0.004). The pooled OR derived from the TME and radical resection subgroups were 0.72 (95%CI=0.16-3.12, P=0.66) and 0.51 (95%CI=0.13-1.96, P=0.32), respectively. CONCLUSION Results from this analysis show that intra-operative rectal washout with mere saline solution largely reduces the risk of anastomotic recurrences in patients with resectable rectal cancer.
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Affiliation(s)
- Can Zhou
- Department of Centre of Translational Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China E-mail :
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26
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Wei Y, Liu PJ, Lee RH, Chen CP. Thermally evaporable 5,10-dihydroindeno[2,1-a]indenes form efficient interfacial layers in organic solar cells. RSC Adv 2015. [DOI: 10.1039/c4ra11696h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Several bis(diarylamino)dihydroindenoindene derivatives were synthesized for use as hole transporting materials (HTMs) in OPVs. An optimized device having the structure ITO/HTM/P3HT:PCBM/Ca/Al operated with a fill factor of 67.8%.
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Affiliation(s)
- Yi Wei
- Department of Chemistry
- Tamkang University
- New Taipei City 25137
- Republic of China
| | - Pei-Jun Liu
- Department of Chemistry
- Tamkang University
- New Taipei City 25137
- Republic of China
| | - Ren-Hao Lee
- Department of Materials Engineering
- Ming Chi University of Technology
- New Taipei City 24301
- Republic of China
| | - Chih-Ping Chen
- Department of Materials Engineering
- Ming Chi University of Technology
- New Taipei City 24301
- Republic of China
- Battery Research Center of Green Energy
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27
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Abstract
OBJECTIVE Serum uric acid levels have been reported to be associated with non-alcoholic fatty liver disease (NAFLD). However, very few studies specifically examining the relationship between serum uric acid (SUA) levels and NAFLD in postmenopausal women have been reported in China, especially in postmenopausal women with normal body mass index (BMI) in whom NAFLD is not uncommon. METHODS A cross-sectional study was employed of 528 Chinese normal-BMI postmenopausal women (aged 41-79 years) who participated in annual health check-ups. NAFLD is defined as a hepatic steatosis observed on liver ultrasonography in the absence of a second cause. Of all the participants, 121 women were diagnosed with hepatic steatosis (NAFLD group) and the others were without (non-NAFLD group). SUA quartiles were defined as follows: Q1, < 3.8 mg/dl; Q2, 3.8-4.4 mg/dl; Q3, 4.5-5.0 mg/dl; Q4, 5.1-6.0 mg/dl. Stepwise multivariable regression analysis was used to assess the relationships between SUA level and other variables. The association between SUA quartiles and hepatic steatosis was assessed using binary logistic regression. RESULTS Compared to the non-NAFLD group, the mean level of SUA was significantly higher in the NAFLD group (p < 0.01). The adjusted odds ratio (95% confidence interval) for the presence of hepatic steatosis in the highest SUA quartile vs. the lowest quartile was 2.774 (1.396-5.513) for all women (p < 0.01) after adjusting for the factors which were independently associated with uric acid level including waist circumference, high blood pressure, blood urea nitrogen, creatinine, γ-glutamyltransferase, and triglycerides. Most estimates changed little after further adjustment for age, metabolic syndrome, drinking status, and smoking status. The presence of hepatic steatosis significantly increased in the third and fourth quartiles of SUA. The prevalence of hepatic steatosis increased gradually with an increasing SUA quartile (p for trend < 0.01). CONCLUSION Higher SUA levels even within the normal range are positively and independently associated with the presence of hepatic steatosis in Chinese postmenopausal women with normal BMI.
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Affiliation(s)
- P J Liu
- * Department of Clinical Nutrition
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Abstract
OBJECTIVE Serum uric acid levels have been reported to be associated with metabolic syndrome (MetS). However, few studies specifically examining the relationship between serum uric acid (SUA) levels and MetS in postmenopausal women have been reported in China. Thus, we conducted this study in order to assess the relationship between SUA levels and MetS in Chinese postmenopausal women. METHODS A cross-sectional study of 1022 Chinese postmenopausal women (aged 42-80 years) who participated in annual health check-ups was employed. MetS was defined by National Cholesterol Education Program/Adult Treatment Panel III criteria (NCEP-ATP III). Of all the participants, 385 women were diagnosed with MetS (MetS group) and the others were without MetS (non-MetS group). SUA quartiles were defined as follows: Q1, < 3.9 mg/dl; Q2, 3.9-4.5 mg/dl; Q3, 4.6-5.1 mg/dl; Q4, 5.2-6.0 mg/dl. The association between SUA quartiles and MetS was assessed using binary logistic regression. RESULTS The adjusted odds ratio (95% confidence interval) for the presence of metabolic syndrome in the highest SUA quartile vs. the lowest quartile was 3.768 (2.386-5.950) for all women (p < 0.01) after adjusting for age, body mass index, blood urea nitrogen, serum creatinine, total cholesterol, low density lipoprotein cholesterol and C-reactive protein. The presence of MetS significantly increased in the second, third and fourth quartiles of SUA. The prevalence of MetS increased gradually with an increasing serum uric acid quartile (p for trend < 0.001). CONCLUSION Higher SUA levels are positively and independently associated with the presence of MetS in Chinese postmenopausal women.
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Affiliation(s)
- P J Liu
- * Department of Clinical Nutrition
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Chen PC, Guo CH, Tseng CJ, Wang KC, Liu PJ. Blood trace minerals concentrations and oxidative stress in patients with obstructive sleep apnea. J Nutr Health Aging 2013; 17:639-44. [PMID: 24097016 DOI: 10.1007/s12603-013-0023-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is associated with increased oxidative stress. Certain essential trace minerals have shown to play an important role in the maintenance of redox homeostasis. We determined the concentrations of trace minerals in OSA patients and assessed their relationships to OSA severity as indicated by the apnea/ hypopnea index (AHI). METHODS We enrolled 44 patients with newly diagnosed mild to moderate OSA and 20 without OSA. The following parameters were measured: polysomnographic values of nocturnal sleep; plasma trace minerals zinc (Zn), copper (Cu), iron (Fe), and erythrocyte selenium (Se); oxidative stress status; and plasma high-sensitivity C-reactive protein (hs-CRP) and tumor necrosis factor-α (TNF-α). RESULTS Compared to controls matched for age, gender, and body mass index, OSA patients had lower concentrations of plasma Zn and erythrocyte Se and higher plasma concentrations of Cu and Fe. OSA patients had significantly higher plasma concentrations of hs-CRP, TNF-α, and malondialdehyde (MDA), and lower erythrocyte antioxidant enzyme glutathione peroxidase (GPx) and superoxide dismutase activities. Significant differences in all the above parameters were also found in patients with moderate OSA compared to those with mild OSA. Furthermore, AHI values correlated significantly with neck circumference, GPx activity, and MDA, hs-CRP, and TNF-α concentrations in OSA patients. AHI values were also negatively associated with concentrations of plasma Zn and erythrocyte Se, but were positively linked to plasma concentrations of Fe and Cu. CONCLUSIONS Abnormal concentrations of these trace minerals may reflect oxidative damage and inflammatory response, thus increasing the severity of OSA.
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Affiliation(s)
- P C Chen
- Po-Jen Liu, Department of Otolaryngology and Nutrition and Naturopathic center, Cheng-Ching Hospital, Taiwan Boulevard, Taichung 407, Taiwan, Republic of China. , Tel:886-4-2463-2000 ext. 53664, Fax:886-4-2463-5961
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Liang RR, Zhang S, Qi JA, Wang ZD, Li J, Liu PJ, Huang C, Le XF, Yang J, Li ZF. Preferential inhibition of hepatocellular carcinoma by the flavonoid Baicalein through blocking MEK-ERK signaling. Int J Oncol 2012; 41:969-78. [PMID: 22684543 DOI: 10.3892/ijo.2012.1510] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Accepted: 05/18/2012] [Indexed: 11/06/2022] Open
Abstract
Baicalein is a purified flavonoid extracted from the roots of Scutellaria baicalensis or Scutellaria radix. Although previous studies have suggested that Baicalein possesses an in vitro anti-hepatocellular carcinoma activity, its in vivo effects and mechanisms of action are still not completely understood. In this study, Baicalein at concentrations of 40-120 µM exhibited significant cytotoxicity to three hepatocellular carcinoma (HCC) cell lines but marginal cytotoxicity to a normal liver cell line in vitro. Compared to a standard chemotherapy drug, 5-fluorouracil (5-FU), Baicalein had greater effect on HCC cells but less toxicity on normal liver cells. Treatment with Baicalein dramatically reduced mitochondrial transmembrane potential, and activated caspase-9 and caspase-3. Blockade of Baicalein-induced apoptosis with a pan-caspase inhibitor partially attenuated Baicalein-induced growth inhibition in HCC. Baicalein treatment significantly inhibited tumor growth of HCC xenografts in mice. Induction of apoptosis was demonstrated in Baicalein-treated xenograft tumors by the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Furthermore, Baicalein treatment dramatically decreased the levels of phosphorylation of MEK1, ERK1/2 and Bad in vitro and in vivo. Overexpression of human MEK1 partially blocked Baicalein-induced growth inhibition. Consequently, these findings suggest that Baicalein preferentially inhibits HCC tumor growth through inhibition of MEK-ERK signaling and by inducing intrinsic apoptosis.
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Affiliation(s)
- Rong-Rui Liang
- Department of General Surgery, Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, P.R. China
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Yang LQ, Yu J, Ma RX, Liu PJ, Guo XY, Li XL, Chang P, Hu H, Zhao F, Bai F. [Effect of different combined antihypertensive regimen on the erectile function in male hypertensive patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2011; 39:636-641. [PMID: 22088245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To compare the effects of felodipine combined irbesartan regimen with that of felodipine combined metoprolol regimen on the sexual function in male hypertensive patients. METHOD One hundred and twenty-three male hypertensive patients (age 25 to 60) were randomly assigned to felodipine (5 mg/d) plus irbesartan (150 mg/d, n = 64) group and felodipine (5 mg/d) plus metoprolol (47.5 mg/d, n = 59) group. Dosage of felodipine were doubled after 4 weeks if the blood pressure were > or = 140/ 90 mm Hg (1 mm Hg = 0.133 kPa). At the baseline and post 24th week treatment, sexual function of patients was assessed by the International Index of Erectile Function (IIEF) Questionaire. Serum testosterone (T), sex hormone binding globulin (SHBG), 4-hydroxynonenal (HNE), 8-hydroxy-2'-deoxyguanosine (8-OHdG) and Malonaldehyde (MDA) were measured by Radioimmunoassay (RIA), ELISA and TBA respectively. RESULTS Total prevalence of erectile dysfunction (ED), T, SHBG and HNE were similar between pre- and post-treatment in two groups (P > 0.05). On the other hand, the scores of the mild ED and sexual desire (SD) were improved and both serum 8-OHdG and MDA in patients with ED decreased [(146.02 +/- 60.54) ng/L vs. (139.89 +/- 62.03) ng/L, P = 0.048 and (6.59 +/- 1.75) micromol/L vs. (5.51 +/- 1.65) micromol/L, P = 0.039] in Felodipine plus Irbesartan group. CONCLUSION The results suggested that Felodipine + Irbesartan regimen may be superior to Felodipine + metoprolol regimen for male hypertensive patients with mild ED.
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Affiliation(s)
- Long-Quan Yang
- Department of Cardiology, Second Hospital of Lanzhou University, Lanzhou 730030, China
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Xu D, Yu J, Liu PJ, Guo XY, Hu H, Chang P, Zhao F, Li XL, Chen XH, Shen XP, Zhang Y, Bai F. [Effect between felodipine plus irbesartan and felodipine plus metoprolol regimen on the sexual function in young and middle-aged women with hypertension]. Zhonghua Xin Xue Guan Bing Za Zhi 2010; 38:728-733. [PMID: 21055142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To compare the effects between felodipine plus irbesartan and felodipine plus metoprolol regimen on blood pressure and the sexual function in young and middle-aged hypertensive women. METHODS In this prospective, randomized, parallelized, controlled and fixed combined therapy trial, 99 female patients (aged 18 to 60) with grade 1 and grade 2 hypertension (BP ≥ 140/90 mm Hg and < 179/109 mm Hg, 1 mm Hg = 0.133 kPa) were assigned to felodipine 5 mg q.d + irbesartan 150 mg q.d (F + I group, n = 49) and felodipine 5 mg q.d + metoprolol 47.5 mg q.d (F + M group, n = 50) group. Target blood pressure was < 140/90 mm Hg. The female sexual function index (FSFI) questionnaire, levels of serum estradiol and testosterone were assessed. Female sexual dysfunction was defined as a FSFI score of less than 25.5. Patients were followed up for 24 weeks. RESULTS The rate of achieving blood pressure goal between 2 groups was similar at the 4th, 8th, 12th and 24th weeks respectively (42.9% vs. 62.0% at 4th week, 89.8% vs. 90.0% at 8th week, 93.9% vs. 94.0% at 12th week, 98.0% vs. 96.0% at 24th week, P > 0.05). Compared to baseline, scores for the items related to "desire" and "arousal" were significantly improved (P < 0.05), the level of the serum estradiol was significantly elevated [(50.3 ± 37.4) pg/L vs. (54.4 ± 10.8) pg/L before menopause, (18.4 ± 2.9) pg/L vs. (20.2 ± 3.1)pg/L after menopause, P < 0.05] and the level of the serum testosterone was significantly decreased [(722.8 ± 277.1) ng/L vs. (650.0 ± 156.0) ng/L before menopause, (841.2 ± 279.3) ng/L vs. (761.9 ± 197.8) ng/L after menopause, P < 0.05] in the F + I group, while scores for the items related to "sexual desire" and "lubrication" were statistically reduced (P < 0.01), the concentration of the serum estradiol was significantly reduced [(57.4 ± 9.7) pg/L vs. (51.1 ± 12.1) pg/L before menopause, (19.8 ± 2.3) pg/L vs. (17.8 ± 3.3) pg/L after menopause, P < 0.01] and the level of the serum testosterone was significantly increased [(775.6 ± 217.8) ng/L vs. (886.0 ± 186.4) ng/L before menopause, (812.5 ± 311.3) ng/L vs. (914.4 ± 300.2) ng/L after menopause, P < 0.01] in the F + M group. FSFI score was negatively correlated with age and systolic blood pressure levels. CONCLUSION felodipine plus irbesartan or metoprolol for 24 weeks equally reduced blood pressure and the former regimen is superior to the latter on sexual function improvement in this patient cohort.
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Affiliation(s)
- Dian Xu
- Department of Cardiology, the Second Hospital of Lanzhou University, Lanzhou 730030, China
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Abrams RA, Liu PJ, Ambinder RF, Haulk TL, Korman LT, Herman MG, Jones RJ. Hodgkin and non-Hodgkin lymphoma: local-regional radiation therapy after bone marrow transplantation. Radiology 1997; 203:865-70. [PMID: 9169718 DOI: 10.1148/radiology.203.3.9169718] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE To assess the acute toxicity and therapeutic effect of local-regional radiation therapy after bone marrow transplantation performed for lymphoma in resistant relapse. MATERIALS AND METHODS Twenty-one patients with Hodgkin (n = 12) or non-Hodgkin lymphoma (n = 9) underwent local-regional radiation therapy after bone marrow transplantation. Posttransplantation radiation was delivered to the dominant site of pretransplantation disease. Three patients with Hodgkin lymphoma and four with non-Hodgkin lymphoma underwent radiation therapy for posttransplantation recurrence. Total body irradiation was used in 10 patients. Mean radiation dose was lower in patients who underwent total body irradiation than in those who did not (P = .05). RESULTS Nineteen of 21 patients completed local-regional therapy. Nonhematologic toxicity was mild in 20 patients. Hematologic toxicity was severe in five patients, four of whom began radiation therapy with low platelet counts. In-field disease progression occurred in six of 15 patients with relapse, including four with disease progression at the start of radiation therapy. Median progression-free survival was 12 months in patients with Hodgkin lymphoma and 1 month in patients with non-Hodgkin lymphoma. CONCLUSION Posttransplantation local-regional radiation therapy can be safely administered in patients with lymphoma. Severe hematologic toxicity is a concern, however, in patients with low platelet counts.
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Affiliation(s)
- R A Abrams
- Department of Oncology, Johns Hopkins Oncology Center, Baltimore, MD 21287-8922, USA
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Su MJ, Liu PJ, Tseng CD, Tseng YZ, Lee CS. Comparison of the pharmacologic action of two isoquinoline alkaloids on rat cardiac tissue. J Formos Med Assoc 1994; 93:673-80. [PMID: 7858450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
We investigated the action of two synthetic isoquinoline alkaloids, 3,4-dihydroxybenzyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (CSH109) and 2-bromo-3,4-dimethoxybenzyl 6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline (CSH118) on rat cardiac tissue. In the right atria, CSH109 increased the amplitude of contractions and spontaneous beats dose-dependently. In the driven left atria and right ventricular strips, CSH109 caused a similar increase in contractions. The positive inotropic and chronotropic actions of CSH109 were antagonized by propranolol. CSH118 caused the spontaneous beats in the right atria to slow down. CSH118, however, failed to antagonize the positive inotropic effect and positive chronotropic effect of isoprenaline. Electrophysiologic study revealed that 3 microM CSH118 markedly reduced fast action potential upstroke and prolonged the action potential duration (APD50) of rat ventricular cells from 34 +/- 8 msec to 122 +/- 29 msec (n = 6). CSH109 prolonged APD50 slightly from 24 +/- 4 msec to 38 +/- 7 msec (n = 4). Under voltage clamp conditions, CSH109 significantly increased the L-type calcium inward current (ICa). The TTX-sensitive sodium inward current (INa), transient outward (Ito) and late outward current (I800), however, were unaffected. The increase in ICa by CSH109 was effectively antagonized by propranolol. Contrary to the action of CSH109, CSH118 strongly suppressed INa, ICa, Ito and I400. The inhibition of INa by 1.5 to 9 microM CSH118 was associated with negative shifting of its steady state inactivation curve. It is concluded that CSH109 exerts a cardiac effect by activating the B-adrenoceptor. CSH118, however, is a broad spectrum ionic channel blocker.
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Affiliation(s)
- M J Su
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei, R.O.C
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