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1.
BMC Anesthesiol ; 22(1): 261, 2022 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-35974310

RESUMO

BACKGROUND: The majority of patients may experience atelectasis under general anesthesia, and the Trendelenburg position and pneumoperitoneum can aggravate atelectasis during laparoscopic surgery, which promotes postoperative pulmonary complications. Lung recruitment manoeuvres have been proven to reduce perioperative atelectasis, but it remains controversial which method is optimal. Ultrasonic imaging can be conducive to confirming the effect of lung recruitment manoeuvres. The purpose of our study was to assess the effects of ultrasound-guided alveolar recruitment manoeuvres by ultrasonography on reducing perioperative atelectasis and to check whether the effects of recruitment manoeuvres under ultrasound guidance (visual and semiquantitative) on atelectasis are superior to sustained inflation recruitment manoeuvres (classical and widely used) in laparoscopic gynaecological surgery. METHODS: In this randomized, controlled, double-blinded study, women undergoing laparoscopic gynecological surgery were enrolled. Patients were randomly assigned to receive either lung ultrasound-guided alveolar recruitment manoeuvres (UD group), sustained inflation alveolar recruitment manoeuvres (SI group), or no RMs (C group) using a computer-generated table of random numbers. Lung ultrasonography was performed at four predefined time points. The primary outcome was the difference in lung ultrasound score (LUS) among groups at the end of surgery. RESULTS: Lung ultrasound scores in the UD group were significantly lower than those in both the SI group and the C group immediately after the end of surgery (7.67 ± 1.15 versus 9.70 ± 102, difference, -2.03 [95% confidence interval, -2.77 to -1.29], P < 0.001; 7.67 ± 1.15 versus 11.73 ± 1.96, difference, -4.07 [95% confidence interval, -4.81 to -3.33], P < 0.001;, respectively). The intergroup differences were sustained until 30 min after tracheal extubation (9.33 ± 0.96 versus 11.13 ± 0.97, difference, -1.80 [95% confidence interval, -2.42 to -1.18], P < 0.001; 9.33 ± 0.96 versus 10.77 ± 1.57, difference, -1.43 [95% confidence interval, -2.05 to -0.82], P < 0.001;, respectively). The SI group had a significantly lower LUS than the C group at the end of surgery (9.70 ± 1.02 versus 11.73 ± 1.96, difference, -2.03 [95% confidence interval, -2.77 to -1.29] P < 0.001), but the benefit did not persist 30 min after tracheal extubation. CONCLUSIONS: During general anesthesia, ultrasound-guided recruitment manoeuvres can reduce perioperative aeration loss and improve oxygenation. Furthermore, these effects of ultrasound-guided recruitment manoeuvres on atelectasis are superior to sustained inflation recruitment manoeuvres. TRIAL REGISTRATION: Chictr.org.cn, ChiCTR2100042731, Registered 27 January 2021, www.chictr.org.cn .


Assuntos
Laparoscopia , Atelectasia Pulmonar , Feminino , Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Pulmão/diagnóstico por imagem , Respiração com Pressão Positiva/métodos , Complicações Pós-Operatórias , Atelectasia Pulmonar/diagnóstico por imagem , Atelectasia Pulmonar/etiologia , Atelectasia Pulmonar/prevenção & controle , Ultrassonografia , Ultrassonografia de Intervenção
2.
Molecules ; 27(10)2022 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-35630659

RESUMO

The study on the mechanism and kinetics of mRNA degradation provides a new vision for chemical intervention on protein expression. The AU enrichment element (ARE) in mRNA 3'-UTR can be recognized and bound by the ARE binding protein (AU-rich Element factor (AUF1) to recruit RNase for degradation. In the present study, we proposed a novel strategy for expression regulation that interferes with the AUF1-RNA binding. A small-molecule compound, JNJ-7706621, was found to bind AUF1 protein and inhibit mRNA degradation by screening the commercial compound library. We discovered that JNJ-7706621 could inhibit the expression of AUF1 targeted gene IL8, an essential pro-inflammatory factor, by interfering with the mRNA homeostatic state. These studies provide innovative drug design strategies to regulate mRNA homeostasis.


Assuntos
Ribonucleoproteínas Nucleares Heterogêneas Grupo D , Regiões 3' não Traduzidas , Ribonucleoproteína Nuclear Heterogênea D0 , Ribonucleoproteínas Nucleares Heterogêneas Grupo D/genética , Ribonucleoproteínas Nucleares Heterogêneas Grupo D/metabolismo , Estabilidade de RNA , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
3.
Eur J Med Chem ; 232: 114200, 2022 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-35219149

RESUMO

Since more than 85% of lung cancer cases are non-small cell lung cancer (NSCLC), finding novel agents with anti-tumor activities is meaningful for NSCLC patients. Mitochondria is essential for cellular energy metabolism in cancer, and regulating mitochondrial bioenergetics is emerging as a practical approach for cancer treatment and prevention. The carbazole scaffold is an active structure showing anti-cancer biological activity, and the structural diversity has been expanded through the improvement and optimization of synthesizing methods. To find novel carbazole derivatives with great anti-tumor potential and explore structures variety, we designed and synthesized a series of 9-(pyrimidin-2-yl)-9H-carbazole derivatives based on the previously reported Cp∗Rh(III)/H+ tandem catalytic system. With thoroughly bioactivity exploration, we found benzo[d] [1,3]dioxol-5-yl(9-(pyrimidin-2-yl)-9H-carbazol-1-yl)methanone (compound 5n) showed notable activity in disrupting the mitochondrial homeostasis, induced cell cycle arrest and apoptosis in human adenocarcinoma cells, and finally showed anti-tumor activity in an NSCLC-xenograft mice model.


Assuntos
Adenocarcinoma de Pulmão , Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Animais , Carbazóis/química , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Homeostase , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/metabolismo , Camundongos , Mitocôndrias/metabolismo
4.
Chin J Integr Med ; 26(4): 270-276, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27586473

RESUMO

OBJECTIVE: To study the effects of Prunella vulgaris polysaccharide (PVP) on human breast carcinoma-associated fibroblasts (CAFs). METHODS: Cell viability was detected by 3-[4,5-dimethylthiazol-2-yl]-2,5-(3-carboxymethoxyphenyl)-2-4-sulfophenyl)-2H-tetrazolium (MTS) assay. Wound healing experiment and transwell migration assay were used to investigate the anti-migration effects. Flow cytometry was applied to detect cell apoptosis and cell cycle distribution. Reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay were used to detect the expression of basic fibroblast growth factor (bFGF) in CAFs. Culture SKBr-3 with CAFs conditioned medium (CAFs-CM) to evaluate the indirect function on the proliferation of breast cancer SKBr-3 cells. RESULTS: PVP inhibited the viability of CAFs by inducing apoptosis (P <0.01) and arresting cell cycle (P <0.01). It also inhibited the migration of CAFs (P <0.01). bFGF promoted CAFs proliferation (P <0.01) and migration (P <0.01), protected CAFs from apoptosis (P <0.05) and reduced G0 phase to 49.06% (P <0.01). However, these effects of bFGF on CAFs could be abrogated by PVP. Culturing SKBr-3 with CAFs-CM, PVP could inhibit the viability of breast cancer SKBr-3 cells indirectly. Moreover, PVP reduced the mRNA expression (P <0.01) and protein secretion of bFGF (P <0.01) in CAFs. CONCLUSION: PVP could exert an anti-cancer effect on breast CAFs by inhibiting bFGF expression, thus inhibiting the growth of breast cancer SKBr-3 cells indirectly.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Fator 2 de Crescimento de Fibroblastos , Fibroblastos/efeitos dos fármacos , Extratos Vegetais , Polissacarídeos/farmacologia , Prunella , Apoptose/efeitos dos fármacos , Neoplasias da Mama/patologia , Ciclo Celular/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Meios de Cultivo Condicionados , Feminino , Fator 2 de Crescimento de Fibroblastos/efeitos dos fármacos , Fator 2 de Crescimento de Fibroblastos/metabolismo , Humanos , Extratos Vegetais/farmacologia
5.
Gene ; 730: 144316, 2020 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-31884109

RESUMO

BACKGROUND: Lung adenocarcinoma (LUAD) is widely known as the leading cause of death in patients with lung cancer. Extensive evidence has determined that microRNAs (miRNAs) exert critical effects on various biological processes in tumorigenesis. microRNA-147b (miR-147b) has been reported to serve as an oncogenic molecule in colorectal cancer and hepatocellular carcinoma, however, its prognostic value and biological effect in LUAD remain rare. MATERIALS AND METHODS: miR-147b and microfibril-associated glycoprotein 4 (MFAP4) data were collected from The Cancer Genome Atlas (TCGA) database to determine their expression levels in LUAD tissues. Kaplan-Meier method was used to plot the overall survival curves for the prognostic power of miR-147b and MFAP4 identification. Chi-square test was utilized to demonstrate the association between clinical characteristics and miR-147b or MFAP4 in LUAD. Luciferse reporter assay was implemented to identify the correlation between miR-147b and MFAP4. The mRNA and protein levels were detected by qRT-PCR and western blotting, respectively. To explore the effects of miR-147b and its potential mechanism in LUAD, cell counting kit 8 (CCK-8), colony formation and transwell assays were performed in LUAD cells with abnormal expression of miR-147b or/and MFAP4. RESULTS: Our results showed that miR-147b was up-regulated in LUAD tissues and cell lines, which induced poor outcome. Conversely, MFAP4, the putative target gene of miR-147b, was down-regulated in LUAD. The expression of MFAP4 in LUAD cells was negatively regulated by miR-147b. Results of experiments in vitro revealed that miR-147b could promote cell proliferation, colony formation, invasion and migration, while up-regulation of MFAP4 suppressed the impacts of miR-147b on cell malignant aggressiveness in A549 and Calu-3 cells. CONCLUSION: In conclusion, these findings determined that miR-147b contributed to the progression of LUAD via targeting MFAP4. Thus, understanding the potential mechanism of miR-147b/MFAP4 may improve the treatment of cancers, especially LUAD.


Assuntos
Adenocarcinoma de Pulmão/genética , Proteínas de Transporte/genética , Proteínas da Matriz Extracelular/genética , Glicoproteínas/genética , MicroRNAs/genética , Adenocarcinoma/genética , Adenocarcinoma de Pulmão/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Proteínas de Transporte/metabolismo , Estudos de Casos e Controles , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Bases de Dados Genéticas , Progressão da Doença , Proteínas da Matriz Extracelular/metabolismo , Feminino , Regulação Neoplásica da Expressão Gênica/genética , Glicoproteínas/metabolismo , Humanos , Estimativa de Kaplan-Meier , Pulmão/metabolismo , Neoplasias Pulmonares/genética , Masculino , MicroRNAs/metabolismo , Pessoa de Meia-Idade , Prognóstico
6.
Phytother Res ; 33(3): 618-630, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30548720

RESUMO

Changes in cellular biomechanical properties affect cell migration and invasion. The natural compound Cucurbitacin B (CuB) has potent anticancer activity; however, the mechanism underlying its inhibitory effect on breast cancer metastasis needs further study. Here, we showed that low-dose CuB inhibited adhesion and altered the viscoelasticity of breast cancer cells, thereby, reducing cell deformability. In vitro and in vivo experiments proved that CuB effectively inhibited the migration and invasion of breast cancer cells. Further studies have found that CuB downregulated the expression of F-actin/vimentin/FAK/vinculin in breast cancer cells, altering the distribution and reorganization of cytoskeletal proteins in the cells. CuB inhibited signaling by the Rho family GTPases RAC1/CDC42/RhoA downstream of integrin. These findings indicate that CuB has been proven to mediate the reorganization and distribution of cytoskeletal proteins of breast cancer cells through RAC1/CDC42/RhoA signaling, which improves the mechanical properties of cell adhesion and deformation and consequently inhibits cell migration and invasion.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Triterpenos/farmacologia , Animais , Fenômenos Biomecânicos , Neoplasias da Mama/patologia , Adesão Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Feminino , Humanos , Camundongos , Camundongos Endogâmicos BALB C , Invasividade Neoplásica , Transdução de Sinais/efeitos dos fármacos , Proteína cdc42 de Ligação ao GTP/fisiologia , Proteínas rac1 de Ligação ao GTP/fisiologia
7.
Oncol Rep ; 40(4): 2127-2136, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30106443

RESUMO

Cucurbitacin B (Cu B), a tetracyclic triterpenoid derived from Trichosanthes kirilowii Maxim, exhibits anticancer effects against various types of tumor. Higenamine, isolated from Radix Aconiti Lateralis Preparata, has been used as a dietary supplement for regulating metabolic function. The present study suggested that higenamine enhances Cu B-induced cytotoxicity in breast cancer cells and in vivo. Network pharmacology analysis was used to identify the possible mechanism of action. Cu B alone inhibited breast cancer cell growth, induced apoptosis, and arrested the cell cycle in the G2/M phase. Cu B combined with higenamine potentiated the cytotoxic effect of Cu B, resulting in the enhanced induction of apoptosis and G2/M arrest. The network pharmacology analysis also found that the major predicted targets of Cu B in breast cancer were AKT, endoplasmic reticulum, farnesyltransferase, CAAX box, α, platelet-derived growth factor receptor α, peroxisome proliferator-activated receptor, RET proto-oncogene, and vascular endothelial growth factor A. The possible targets of higenamine involved in the synergic action were cyclin A2, cyclin-dependent kinase 2 (CDK2), dihydrofolate reductase, and protein kinase CAMP­activated catalytic subunit α. The associated pathways were summarized by Kyoto Encyclopedia of Genes and Genomes pathway analysis, and it was hypothesized that higenamine may enhance the antitumor effects of Cu B in breast cancer through inhibition of the interaction of AKT and CDK2. The protein expression was assayed by western blot analysis. The combined treatment also resulted in significant inhibition of growth in vivo.


Assuntos
Alcaloides/farmacologia , Antineoplásicos Fitogênicos/farmacologia , Neoplasias da Mama/patologia , Quinase 2 Dependente de Ciclina/metabolismo , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-akt/metabolismo , Tetra-Hidroisoquinolinas/farmacologia , Triterpenos/farmacologia , Animais , Anti-Inflamatórios não Esteroides/farmacologia , Apoptose/efeitos dos fármacos , Biomarcadores Tumorais , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Ciclo Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Quinase 2 Dependente de Ciclina/antagonistas & inibidores , Sinergismo Farmacológico , Feminino , Humanos , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Domínios e Motivos de Interação entre Proteínas/efeitos dos fármacos , Proto-Oncogene Mas , Proteínas Proto-Oncogênicas c-akt/antagonistas & inibidores , Transdução de Sinais/efeitos dos fármacos , Trichosanthes/química , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
8.
Chin J Integr Med ; 24(10): 741-745, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29667148

RESUMO

OBJECTIVE: To evaluate the diagnostic significance of sublingual nodules for metastasis of patients with breast cancer and further to explore the mechanisms of sublingual nodules. METHODS: The image data of 117 in-patients with breast cancer in stage I-IV in Tianjin Medical University Cancer Institute and Hospital from December 2009 to September 2011 were assessed retrospectively. All photos of patients' tongue were recorded by the digital camera of uniform type within 1 month after serological examination and regular re-examined by computed tomography (CT), magnetic resonance imaging and positron emission tomography CT. The presence of sublingual nodules was the positive standard. Chi square test and two-independent-sample test were used to determine the diagnostic value between the status of sublingual nodules and Clinico-pathological characteristics. The optimal cut-off of uric acid (UA) level to diagnose sublingual nodules was determined by receiver operating curve (ROC) analysis. RESULTS: Breast cancer patients with sublingual nodules had a higher risk of recurrence and/or metastasis than patients without it (P<0.001). Sublingual nodules was significantly correlated with increased serum UA level (P=0.001). The optimal cut-off value of UA level to diagnose sublingual nodules was 290 µmol/L. Furthermore, the elevated serum UA level (≥290 µmol/L) was significantly related to breast cancer recurrence and/or metastasis (P<0.001). CONCLUSIONS: Sublingual nodules were potential diagnostic markers for metastatic breast cancer. The formation of sublingual nodules was associated with elevated level of serum UA.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/patologia , Glândula Sublingual/patologia , Adulto , Idoso , Neoplasias da Mama/sangue , Feminino , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Recidiva Local de Neoplasia/patologia , Curva ROC , Ácido Úrico/sangue
9.
Oncotarget ; 8(16): 27007-27021, 2017 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-28212580

RESUMO

Chinese Herbal Medicine (CHM) plays a significant role in breast cancer treatment. We conduct the study to ascertain the relative molecular targets of effective Chinese herbs in treating stage IV breast cancer.Survival benefit of CHM was verified by Kaplan-Meier method and Cox regression analysis. A bivariate correlation analysis was used to find and establish the effect of herbs in complex CHM formulas. A network pharmacological approach was adopted to explore the potential mechanisms of CHM.Patients in the CHM group had a median survival time of 55 months, which was longer than the 23 months of patients in the non-CHM group. Cox regression analysis indicated that CHM was an independent protective factor. Correlation analysis showed that 10 herbs were strongly correlated with favorable survival outcomes (P<0.01). Bioinformatics analyses suggested that the 10 herbs might achieve anti-breast cancer activity primarily through inhibiting HSP90, ERα and TOP-II related pathways.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Adulto , Idoso , Biomarcadores Tumorais , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Terapia Combinada , Composição de Medicamentos , Medicamentos de Ervas Chinesas/química , Feminino , Humanos , Estimativa de Kaplan-Meier , Medicina Tradicional Chinesa , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Transdução de Sinais/efeitos dos fármacos
10.
Sci Rep ; 6: 32809, 2016 09 09.
Artigo em Inglês | MEDLINE | ID: mdl-27609096

RESUMO

Blockade of the epidermal growth factor receptor (EGFR) by EGFR tyrosine kinase inhibitors is insufficient for effective anti-tumor activity because the reactivation of the ErbB3 signaling pathway significantly contributes to activating the consequent phosphoinositide 3-kinase (PI3K)/Akt signaling pathway. Combinatorial therapies including ErbB3 targeting may ameliorate tumor responses to anti-EGFR therapies. In the present study, we found that in BxPC-3 and L3.6pl cells, which highly expressed the ErbB3 receptor, significant reduction in cell viability, induction of apoptosis were observed when treated with a combination of erlotinib and PF compared to either agent alone. Moreover, in ErbB3-expressing BxPC-3, L3.6pl and S2VP10 cell lines, the inhibition of ErbB3/PI3K/Akt phosphorylation were observed when treated with PF. Most strikingly, both EGFR/MAPK/Erk and ErbB3/PI3K/Akt activitions were substantially suppressed when treated with the combination of PF and erlotinib. However, in the ErbB3-deficient cell line MIAPaCa-2, no such effects were observed with similar treatments. Most importantly, these in vitro results were replicated in nude mouse transplanted tumor models. Taken together, our findings show that PF enhances the effect of erlotinib in ErbB3-expressing pancreatic cancer cells by directly suppressing ErbB3 activation, and PF in combination with erlotinib is much more effective as an antitumor agent compared with either agent alone.


Assuntos
Cloridrato de Erlotinib/administração & dosagem , Glucosídeos/administração & dosagem , Monoterpenos/administração & dosagem , Neoplasias Pancreáticas/tratamento farmacológico , Receptor ErbB-3/metabolismo , Animais , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Sinergismo Farmacológico , Cloridrato de Erlotinib/farmacologia , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Glucosídeos/farmacologia , Humanos , Camundongos , Camundongos Nus , Monoterpenos/farmacologia , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/patologia , Fosforilação , Receptor ErbB-3/genética , Ensaios Antitumorais Modelo de Xenoenxerto
11.
Medicine (Baltimore) ; 95(35): e4389, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27583849

RESUMO

Increasing evidence has shown that Chinese Herbal Medicine (CHM) has efficient therapeutic effects for advanced gastric adenocarcinoma, while the therapeutic mechanisms underlying this treatment remain unclear.In this study, the Kaplan-Meier method and Cox regression analysis were used to evaluate the survival benefit of CHM treatment, and correlation analysis was applied to identify the most effective components in the formulas. A network pharmacological approach was developed to decipher the potential therapeutic mechanisms of CHM.CHM treatment was an independent protective factor. The hazard ratio was 0.364 (95% CI 0.245-0.540; P < 0.001). The median survival time was 18 months for patients who received CHM treatment, while for patients without CHM treatment was decreased to 9 months (P < 0.001). Thirteen out of the total 204 herbs were significantly correlated with favorable survival outcomes (P < 0.05), likely representing the most effective components in these formulas. Bioinformatics analyses suggested that the simultaneous manipulation of multiple targets in proliferation pathways (such as epidermal growth factor receptor, fibroblast growth factor receptor 2, human epidermal growth factor receptor 2, proliferating cell nuclear antigen, and insulin like growth factor 2) and the process of cancer metastasis (collagen families, fibronectin 1 and matrix metalloproteinases families) might largely account for the mechanisms of the 13 herbs against gastric adenocarcinoma.A network pharmacology method was introduced to decipher the underlying mechanisms of CHM, which provides a good foundation for herbal research based on clinical data.


Assuntos
Adenocarcinoma/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/genética , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Carcinogênese/genética , Proliferação de Células/efeitos dos fármacos , Proliferação de Células/genética , Biologia Computacional , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/uso terapêutico , Feminino , Expressão Gênica/efeitos dos fármacos , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/genética , Neoplasias Gástricas/genética , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Taxa de Sobrevida
12.
Stem Cells Dev ; 25(21): 1629-1639, 2016 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-27484709

RESUMO

Tumors recruit bone mesenchymal stem cells (BMSCs) to localize to tumor sites, which induces their conversion into cancer-associated fibroblasts (CAFs) that facilitate tumor progression. However, this process is poorly understood on the molecular level. In this study, we found that 4T1 breast cancer cells promoted the migration of BMSCs, and bFGF neutralizing antibody inhibited the migration of BMSCs induced by a tumor-conditioned medium. In addition, exogenous bFGF enhanced the migration of BMSCs in a dose-dependent manner in vitro. Furthermore, BMSCs promoted the proliferation of 4T1 tumor cells under BMSC-conditioned medium and in tumor xenograft model. Dramatically, BMSCs expressed CAF markers and produced collagen in the tumor microenvironment, and this transition was blocked by bFGF antibody. In addition, exogenous bFGF induced CAF differentiation of BMSCs. And bFGF increased phosphorylation of Erk1/2 and Smad3 in BMSCs and Erk inhibitor PD98059 was shown to block bFGF-induced Erk and Smad3 phosphorylation, suggesting that Erk/Smad3 signaling pathway involved in BMSC transdifferentiation induced by bFGF. Collectively, our results indicate that bFGF signaling plays indispensable roles in BMSC recruitment and transdifferentiation into CAFs and the consequent protumor effects, and targeting tumor stroma through bFGF inhibition maybe a promising strategy to suppress tumor progression.

13.
Biomed Res Int ; 2016: 7396392, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27190997

RESUMO

Objective. To study the antilymphangiogenesis effect of Gekko Sulfated Glycopeptide (GSPP) on human lymphatic endothelial cells (hLECs). Methods. MTS was conducted to confirm the antiproliferation effect of GSPP on hLECs; flow cytometry was employed to detect hLECs cycle distribution; the antimigration effect of GSPP on hLECs was investigated by wound healing experiment and transwell experiment; tube formation assay was used to examine its inhibitory effect on the lymphangiogenesis; western blotting was conducted to detect the expression of extracellular signal-regulated kinase1/2 (Erk1/2) and p-Erk1/2 after GSPP and basic fibroblast growth factor (bFGF) treatment. Nude mice models were established to investigate the antitumor effect of GSPP in vivo. Decreased lymphangiogenesis caused by GSPP in vivo was verified by immunohistochemical staining. Results. In vitro, GSPP (10 µg/mL, 100 µg/mL) significantly inhibited bFGF-induced hLECs proliferation, migration, and tube-like structure formation (P < 0.05) and antagonized the phosphorylation activation of Erk1/2 induced by bFGF. In vivo, GSPP treatment (200 mg/kg/d) not only inhibited the growth of colon carcinoma, but also inhibited the tumor lymphangiogenesis. Conclusion. GSPP possesses the antitumor ability by inhibiting bFGF-inducing lymphangiogenesis in vitro and in vivo, which may further inhibit tumor lymphatic metastasis.


Assuntos
Linfangiogênese/efeitos dos fármacos , Neoplasias Experimentais/tratamento farmacológico , Neoplasias Experimentais/metabolismo , Neovascularização Patológica/tratamento farmacológico , Neovascularização Patológica/metabolismo , Polissacarídeos/administração & dosagem , Animais , Antineoplásicos/administração & dosagem , Linhagem Celular Tumoral , Fator 2 de Crescimento de Fibroblastos/metabolismo , Humanos , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Neoplasias Experimentais/patologia , Neovascularização Patológica/patologia , Resultado do Tratamento , Carga Tumoral/efeitos dos fármacos
14.
Sci Rep ; 6: 24944, 2016 05 04.
Artigo em Inglês | MEDLINE | ID: mdl-27143508

RESUMO

Traditional Chinese medicine (TCM) has been used to treat tumors for years and has been demonstrated to be effective. However, the underlying molecular mechanisms of herbs remain unclear. This study aims to ascertain molecular targets of herbs prolonging survival time of patients with advanced hepatocellular carcinoma (HCC) based on network pharmacology, and to establish a research method for accurate treatment of TCM. The survival benefit of TCM treatment with Chinese herbal medicine (CHM) was proved by Kaplan-Meier method and Cox regression analysis among 288 patients. The correlation between herbs and survival time was performed by bivariate correlation analysis. Network pharmacology method was utilized to construct the active ingredient-target networks of herbs that were responsible for the beneficial effects against HCC. Cox regression analysis showed CHM was an independent favorable prognostic factor. The median survival time was 13 months and the 5-year overall survival rates were 2.61% in the TCM group, while there were 6 months, 0 in the non-TCM group. Correlation analysis demonstrated that 8 herbs closely associated with prognosis. Network pharmacology analysis revealed that the 8 herbs regulated multiple HCC relative genes, among which the genes affected proliferation (KRAS, AKT2, MAPK), metastasis (SRC, MMP), angiogenesis (PTGS2) and apoptosis (CASP3) etc.


Assuntos
Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Plantas Medicinais , Perfilação da Expressão Gênica , Humanos , Testes Farmacogenômicos , Análise de Sobrevida , Resultado do Tratamento
15.
Int J Biol Macromol ; 82: 765-71, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26522246

RESUMO

A fructan (ACPS-1) with a molecular weight of 11.2 kDa was isolated from Atractylodes chinensis rhizome and characterized by chemical derivatization, HPLC, GC-MS, FT-IR, and NMR. Structural analyses revealed that ACPS-1 is predominately composed of fructose and a small amount of glucose and a polymerization degree of about 53. The fructan was deduced to be an inulin-type fructan containing a linear backbone composed of (2→1)-linked ß-d-Fruf residues. The in vitro antitumor activity of ACPS-1 was evaluated on four human cancer cell lines, including a cervical cancer cell line (Hela), two liver hepatocellular carcinoma cell lines (HepG2 and 7721), and an ovarian carcinoma cell line (Skov3). Results showed that ACPS-1 could significantly inhibit Hela, HepG2, and 7721 cell proliferation, especially HepG2, for which the fructan showed a proliferative inhibition rate as high as 87.40%. This result suggests that ACPS-1 may have anticancer potentiality against hepatocellular carcinoma and warrants further investigation.


Assuntos
Antineoplásicos/química , Antineoplásicos/farmacologia , Atractylodes/química , Frutanos/química , Frutanos/farmacologia , Linhagem Celular , Cromatografia Gasosa-Espectrometria de Massas , Humanos , Inulina/química , Espectroscopia de Ressonância Magnética , Peso Molecular , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Espectroscopia de Infravermelho com Transformada de Fourier , Relação Estrutura-Atividade
16.
Artigo em Inglês | MEDLINE | ID: mdl-26421050

RESUMO

Objectives. Hua-Zheng-Hui-Sheng-Dan (HZHSD) was used as an experimental model to explore research methods of large formulae in traditional Chinese medicine (TCM) using current molecular biology approaches. Materials and Methods. The trypan blue exclusion assay was used to determine cell viability and cell numbers. Flow cytometry was used to assess cell cycle distribution and apoptosis. The concentration of cyclin D1 was analyzed by enzyme-linked immunosorbent assay. The median effect principle was used in drug combination studies. An orthogonal experimental design was used to estimate the effects of each herb at different concentrations. The HeLa xenograft mouse model was used to compare the antitumor activity of drugs in vivo. Results. Among the 35 herbs that comprise HZHSD, Radix Rehmanniae Preparata (RRP), Caesalpinia sappan (CS), Evodia rutaecarpa (ER), Folium Artemisiae Argyi (FAA), Leonurus japonicus Houtt (LJH), Tumeric (Tu), Radix Paeoniae Alba (RPA), and Trogopterus Dung (TD) effectively inhibited the proliferation of HeLa and SKOV3 cells. Only RRR had an effect on HeLa and SKOV3 cell viability. According to the median effect principle, Angelica sinensis (Oliv.) (AS), Tabanus (Ta), and Pollen Typhae (PT), which were proven to have a significant synergistic inhibitory effect on the proliferation of HeLa cells, were added to the original eight positive herbs. The combination of RPA and AS had a synergistic effect on inducing cell cycle S phase arrest and decreasing intracellular cyclin D1 in HeLa cells. By orthogonal experimental design, LJH and Tu were considered unnecessary herbs. The small formula (SHZHSD) consisted of RPA, AS, RRR, Ta., TD, PT, ER, CS, and FAA and was able to inhibit cell proliferation and induce cell apoptosis. The antitumor effects of HZHSD and SHZHSD were also compared in vivo. Conclusions. Through molecular biology approaches both in vitro and in vivo, research into single drugs, and analysis using the median effect principle and orthogonal experimental design, the small formula (SHZHSD) was determined from the original formula (HZHSD). SHZHSD exhibited superior antitumor activity compared with the original formula both in vitro and in vivo.

17.
Mini Rev Med Chem ; 15(12): 1011-23, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26156539

RESUMO

With a long history of clinical use, Chinese herbal medicine (CHM) is emerging as a noticeable choice for its multi-level, multi-target and coordinated intervention effects against tumor. Recently, many agents from CHM have shown powerful anti-angiogenic activities against tumor. In this review, we discussed the anti-tumor angiogenic activities of 6 kinds of agents from CHM (sulfated polysaccharides/glycopeptides, flavonoids, artemisinin, arsenic trioxide, ginsenoside, and tanshinone). The underlying pharmacological mechanisms of cancer angiogenesis inhibition by these agents are also gradually shown to us. Sulfated polysaccharides/glycopeptides and flavonoids may have synergistic effects with targeted anti-angiogenic drugs mainly targeting VEGF pathway by inhibiting bFGF and HIF-1α pathway, respectively. It is interesting that artemisinin and arsenic trioxide, two famous natural products worldwide, also have antitumor activity at least in part via angiogenesis inhibition. In addition, some natural products that are widely used for patients with cancer, such as ginseng and danshen, act as double-edged swords for tumor angiogenesis. Our review is aimed at providing an understanding of anti-angiogenic compounds from CHM and we propose that these breakthrough findings may have important implications for targeted-angiogenesis therapy and modernization of CHM.


Assuntos
Inibidores da Angiogênese/farmacologia , Antineoplásicos Fitogênicos/farmacologia , Produtos Biológicos/farmacologia , Medicina Tradicional Chinesa , Neoplasias/tratamento farmacológico , Extratos Vegetais/farmacologia , Inibidores da Angiogênese/química , Inibidores da Angiogênese/isolamento & purificação , Animais , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/isolamento & purificação , Produtos Biológicos/química , Produtos Biológicos/isolamento & purificação , Humanos , Neovascularização Patológica/tratamento farmacológico , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação
18.
Medicine (Baltimore) ; 94(26): e1008, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26131801

RESUMO

Traditional Chinese medicine (TCM) is one of the most common complementary and alternative medicines used in the treatment of patients with cancer worldwide. However, the clinical effect of TCM on patients with pancreatic cancer remains unclear. This study was aimed to explore the efficacy of TCM on selected patients with pancreatic cancer and to study the usefulness of multimodality treatment, including TCM and western medicine (WM), in pancreatic cancer.From January 2009 to October 2013, 107 patients with pancreatic cancer were included in this study. Kaplan-Meier curves were used to assess the differences in survival time. Cox regression analysis was performed to determine survival trends adjusted for clinical and demographic factors.Cox regression analysis suggested that elevated CA19-9 levels (P = 0.048), number of cycles of chemotherapy (P = 0.014), and TCM were independent prognostic factors (P < 0.001). The survival hazards ratio of TCM was 0.419 (95% confidence interval [CI], 0.261-0.671). The median overall survival (OS) was 19 months for patients with TCM treatment, while the median OS was 8 months for those without TCM treatment (P < 0.001). Patients who received multimodality treatment using TCM and WM had the best prognosis with a median OS of 19 months (P < 0.001). Patients with heat-clearing, diuresis-promoting and detoxification TCM treatment had a longer survival time (32.4 months) than those with blood-activating and stasis-dissolving (9.8 months) and tonifying qi and yang treatment (6.1 months; P = 0.008).These results indicate that TCM has an important potential value for improving the prognosis of patients with pancreatic cancer, and multimodality treatment, including TCM and WM, leads to the best prognosis. More importantly, we suggest that heat-clearing, diuresis-promoting, and detoxification TCM treatment may improve the efficacy of TCM in pancreatic cancer.


Assuntos
Adenocarcinoma/terapia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicina Tradicional Chinesa , Neoplasias Pancreáticas/terapia , Fitoterapia , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/mortalidade , Estudos Retrospectivos
19.
Int J Gynecol Cancer ; 25(1): 24-32, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25347092

RESUMO

OBJECTIVE: The study aimed to evaluate the prognostic value of pretreatment plasma dimerized plasmin fragment D (D-dimer), fibrinogen, and platelet levels in epithelial ovarian cancer (EOC) after adjusting for venous thromboembolism (VTE) and to screen out the patients with the greatest risk for poor prognosis. METHODS: The study comprised 190 patients with EOC. The plasma D-dimer, fibrinogen, and platelet levels were examined before treatment and analyzed with patient clinicopathological parameters, progression-free survival (PFS), and overall survival (OS). The survival analysis was performed using the Kaplan-Meier method, and prognostic factors were assessed using the Cox proportional hazards regression model. RESULTS: The incidences of elevated plasma D-dimer levels, hyperfibrinogenemia, and thrombocytosis were 40%, 42.11%, and 45.26%, respectively. Elevated plasma D-dimer level, hyperfibrinogenemia, and thrombocytosis were associated with advanced tumor stage (P < 0.001, P = 0.013, P < 0.001). In addition, the elevated plasma D-dimer levels were associated with macroscopic postoperative residual disease (P = 0.002) and VTE events (P = 0.006). In multivariate Cox regression model, plasma D-dimer, fibrinogen, and platelet levels were identified as independent prognostic factors for OS (P = 0.039, P = 0.002, and P = 0.049). However, plasma fibrinogen and platelet levels, but not D-dimer levels, had independent prognostic value for PFS (P = 0.012 and P = 0.022). Patients with at least any 2 abnormalities of plasma D-dimer, fibrinogen, and platelet levels showed shorter PFS and OS than did patients with at most 1 abnormality of 3 parameters (P < 0.001). CONCLUSIONS: Pretreatment plasma D-dimer, fibrinogen, and platelet levels, which impact prognosis independently of VTE, were demonstrated to be potential markers to predict disease progression and surgery outcome in patients with EOC. The combined use of plasma D-dimer, fibrinogen, and platelet levels may help to identify the high-risk populations for treatment decisions.


Assuntos
Plaquetas/química , Cistadenocarcinoma Seroso/mortalidade , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Fibrinogênio/análise , Neoplasia Residual/mortalidade , Neoplasias Ovarianas/mortalidade , Tromboembolia Venosa/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Cistadenocarcinoma Seroso/sangue , Cistadenocarcinoma Seroso/patologia , Progressão da Doença , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Neoplasia Residual/sangue , Neoplasia Residual/patologia , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/patologia , Prevalência , Prognóstico , Taxa de Sobrevida , Tromboembolia Venosa/diagnóstico , Tromboembolia Venosa/epidemiologia
20.
Chin J Integr Med ; 21(1): 49-57, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25533651

RESUMO

OBJECTIVE: To investigate the effects of Chinese medicine (CM) herbal treatment based on syndrome differentiation on patients with unresectable hepatocellular carcinoma (HCC). METHODS: A total of 94 patients with unresectable HCC were reviewed between June 2008 and June 2011. Survival analysis was performed between patients who received CM with/without non-curative antitumor treatments of Western medicine (WM) (CM group, 30 cases) and patients who were not treated with CM but with non-curative antitumor treatments of WM or supportive treatment alone (non-CM group, 64 cases). Then, survival analysis was performed between patients treated with CM combined with non-curative antitumor treatments of WM (combination therapy group, 25 cases) and patients with non-curative antitumor treatments of WM alone (non-curative antitumor treatments group of WM, 52 cases). The survival analysis was performed by Kaplan-Meier method and prognostic factors for overall survival (OS) were assessed by the Cox proportional hazards regression model. RESULTS: The median survival time (MST), 1- and 2-year survival rates of the CM group and the non-CM group were 36 months, 76.7%, 56.1% and 12 months, 48.4%, 26.6%, respectively. The Log-rank test revealed significant difference between the two groups in OS (P<0.01). Cox proportional multivariate analysis revealed that CM was an independent favorable prognostic factor for OS. The MST, 1- and 2-year survival rates of combination therapy group and non-curative antitumor treatments group of WM were 36 months, 76.0%, 55.5% and 13 months, 55.8%, 30.8%, respectively. There was significant difference in OS between the two groups (P=0.004). CONCLUSIONS: CM herbs based on syndrome differentiation have positive effects on survival of patients with unresectable HCC. Furthermore, combination therapy of CM and WM are recommended in HCC treatment.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/mortalidade , Medicamentos de Ervas Chinesas/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/mortalidade , Adulto , Idoso , Carcinoma Hepatocelular/cirurgia , Terapia Combinada , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Análise de Sobrevida , Síndrome
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