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1.
Mol Biol Rep ; 47(12): 9779-9789, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33165817

RESUMO

Flavonoids are members of polyphenolic compounds, which are naturally presented in fruits, vegetables, and some medicinal plants. Traditionally, the root of Scutellaria baicalensis is widely used as Chinese herbal medicine and contains several major bioactive compounds such as Wogonin, Scutellarein, Baicalein, and Baicalin. Experimental and clinical evidence has been proving that Wogonin exhibits diverse biological activities such as anti-cancer, anti-inflammation, and treatment of bacterial and viral infections. In this review, we summarize and emphasize the benefits of Wogonin as a therapeutic adjuvant for anti-viral infection, anti-inflammation, neuroprotection as well as anxiolytic and anticonvulsant. Moreover, the molecular mechanism(s) how Wogonin mediates the cellular signal pathways and immune responses are also discussed and highlighted valuable properties of Wogonin in multiple therapies.


Assuntos
Medicamentos de Ervas Chinesas , Flavanonas , Ansiolíticos/farmacologia , Ansiolíticos/uso terapêutico , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Anticonvulsivantes/farmacologia , Anticonvulsivantes/uso terapêutico , Antivirais/farmacologia , Antivirais/uso terapêutico , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Flavanonas/farmacologia , Flavanonas/uso terapêutico , Humanos , Fármacos Neuroprotetores/farmacologia , Fármacos Neuroprotetores/uso terapêutico , Extratos Vegetais/química , Plantas Medicinais/química , Scutellaria baicalensis/química
2.
Artigo em Inglês | MEDLINE | ID: mdl-31049070

RESUMO

Pancreatic cancer has a poor survival rate as compared to other types of cancer. Surface marker CD44 plays important role in epithelial-mesenchymal transition and cancer stem cell phenotype. Therefore, targeting CD44 positive pancreatic cancer cells might enhance therapies effectiveness. Our previous studies indicated the antitumorigenesis effect of BRM270 in osteosarcoma, lung cancer, and glioblastoma; however there is no evidence on BRM270 impacts on pancreatic cancer growth. In this study, we investigated the effect of BRM270 on the isolated CD44 positive pancreatic ductal adenocarcinoma cells (CD44+ PDAC). Results showed that CD44 positive cells undergo apoptosis induced by BRM270. Moreover, BRM270 also inhibits stemness and metastasis traits in CD44+ PDAC via Sonic hedgehog signaling pathway and SALL4 expression. In vivo study indicated that tumor growth derived from CD44+ PDAC was suppressed as daily uptake by BRM270 5 mg/kg. These data suggest the alternative approach in antipancreatic tumorigenesis via herbal plants extract and selectively targeting CD44+ PDAC cells in tumor.

3.
Mater Sci Eng C Mater Biol Appl ; 97: 166-176, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30678901

RESUMO

BRM270 is the most leading phytochemical extract that possesses potent anticancer properties. A major challenge associated with this drug is its low bioavailability and thus requires high dosages for cancer treatment. Here, we report the novel nano-synthesis of phyto-composite, BRM270 for the first time by mechanical milling method with specific modifications for enhanced cytotoxicity against HepG2 human hepatoma cancer cells. Unlike free BRM270 and other phytomedicines, BRM270 nanoparticles (BRM270 NPs) are well-dispersed and small sized (23 to 70 nm) which is believed to greatly enhanced cellular uptake. Furthermore, the acidic tumor microenvironment attracts BRM270 NPs enhancing targeted therapy while leaving normal cells less affected. The comparative cytotoxicity analysis using MTT assay among the three treatment groups, such as free BRM270, BRM270 NPs, and doxorubicin demonstrated that BRM270 NPs induced greater cytotoxicity against HepG2 cells with an effective drug concentration of 12 µg/ml. From FACS analysis, we observed an apoptotic cell death of 44.4% at BRM270 NPs treated cells while only 12.5% found in the free BRM270 treated cells. Further, the comparative relative expression profiling of the candidate genes were showed significant (p < 0.05) down-regulation of IL6, BCL2, p53, and MMP9 in the BRM270 NPs treated cells, compared to the free BRM270 and doxorubicin. Indeed, the genes, CASPASE 9 and BAX have shown significant (p < 0.05) upregulation in cells treated with BRM270 NPs as compared to counter treatment groups. The investigation of the signal pathways and protein-protein network associations were also carried out to elucidate the functional insights underlying anti-cancer potential of BRM270 NPs in HepG2 cells. Taken together, our findings demonstrated that these uniquely engineered BRM270 NPs effectively enter into the cancer cells due to its acidic microenvironment thereby inducing apoptosis and regulate the cell-proliferation in-vitro at extremely low dosages.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/farmacologia , Nanopartículas/química , Antineoplásicos Fitogênicos/síntese química , Antineoplásicos Fitogênicos/química , Apoptose/efeitos dos fármacos , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patologia , Proliferação de Células/efeitos dos fármacos , Cromatografia Líquida de Alta Pressão , Análise por Conglomerados , Sistemas de Liberação de Medicamentos/métodos , Liberação Controlada de Fármacos , Medicamentos de Ervas Chinesas/síntese química , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Células Hep G2 , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patologia , Microscopia Eletrônica de Varredura , Reprodutibilidade dos Testes
4.
Infect Immun ; 87(3)2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30559219

RESUMO

Gallibacterium anatis is a pathogen associated with peritonitis and salpingitis in chickens and other avian species. Novel safety prevention strategies are urgently needed because of widespread multidrug resistance and antigenic diversity. The objective of this study was to produce a specific chicken egg yolk antibody and evaluate its protective response against a G. anatis infection model in 4-week-old chicks. Enzyme-linked immunosorbent assays showed that hens immunized with the recombinant N terminus of Gallibacterium toxin A (GtxA-N) had significantly increased antibody titers against GtxA-N in serum and egg yolk IgY. Western blotting showed that IgY antibody had specificity against GtxA-N in the egg yolks of immunized hens. The growth of G. anatis in brain heart infusion (BHI) broth and agar was significantly inhibited by the GtxA-N-specific IgY antibody. The protective effects of the specific IgY antibody were evaluated in G. anatis-infected chicks after intramuscular injection (10 mg/ml). The anti-GtxA-N antibody titers in the sera of G. anatis-challenged chicks following an injection of specific IgY antibody were significantly higher than those of the control and the nonspecific IgY groups, but lower lesion scores for the peritoneum, liver, and duodenum were found after specific IgY antibody treatment. The results from this study suggest that the GtxA-N-specific IgY antibody could potentially improve the protective response against G. anatis infection in chicks.


Assuntos
Anticorpos Antibacterianos/imunologia , Infecções Bacterianas/prevenção & controle , Galinhas/imunologia , Gema de Ovo , Gammaproteobacteria/imunologia , Animais , Feminino , Imunoglobulinas/imunologia
5.
Cancer Gene Ther ; 26(9-10): 292-304, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30341415

RESUMO

Previously, we demonstrated that Prx II is important for survival of the gefitinib-resistant A549 (A549/GR) cell line, an NSCLC cell line derived by repeated exposure to gefitinib. Therefore, in this study, we used A549/GR cells to investigate the role of Prx II in GR NSCLC stemness. Initially, to explore the stemness characteristics and investigate the association of Prx II with those stemness characteristics, we successfully isolated a stem cell-like population from A549/GR cells. A549/GR CD133+ cells possessed important cancer stemness characteristics, including the abilities to undergo metastasis, angiogenesis, self-renewal, and to express stemness genes and epithelial-mesenchymal transition (EMT) markers. However, those characteristics were abolished by knocking down Prx II expression. MicroRNA 122 (miR-122) targets Prx II in A549/GR cancer stem cells (CSCs), thereby inhibiting the stemness characteristics in vitro and in vivo. Next, we investigate whether miR-122 overexpression was associated with Prx II expression and Prx-II-induced stemness characteristics, we transfected miR-122 into A549/GR CSCs. MiR-122 inhibited A549/GR stemness by downregulating the Hedgehog, Notch, and Wnt/ß-catenin pathways. Taken together, our data suggest that Prx II promotes A549/GR stemness, and that targeting Prx II and miR-122 is a potentially viable strategy for anti-cancer-stem cell therapy in GR NSCLCs.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/genética , Gefitinibe/farmacologia , Regulação Neoplásica da Expressão Gênica , Neoplasias Pulmonares/genética , MicroRNAs/genética , Células-Tronco Neoplásicas/efeitos dos fármacos , Células-Tronco Neoplásicas/metabolismo , Peroxirredoxinas/genética , Antígeno AC133/metabolismo , Animais , Apoptose/efeitos dos fármacos , Apoptose/genética , Linhagem Celular Tumoral , Proliferação de Células , Resistencia a Medicamentos Antineoplásicos/genética , Técnicas de Silenciamento de Genes , Humanos , Camundongos , Neovascularização Patológica/genética , Neovascularização Patológica/metabolismo , Interferência de RNA , Receptores Notch/metabolismo , Via de Sinalização Wnt
6.
Artigo em Inglês | MEDLINE | ID: mdl-30154906

RESUMO

Inflammation is tightly associated with carcinogenesis at both the initiation and development of tumor. Many reports indicated that Cox-2 substantially contributes to inflammation and tumorigenesis. The novel nutraceutical KJS018A (BRM270 Function Enhanced Products) is the extract mixture from 8 herbal plants, which have been used to inhibit cancers and inflammation. The aim of the present study is to examine the inhibitory effects of KJS018A mixture to hepatocarcinogenesis and inflammation. The results showed that KJS018A significantly inhibited the proliferation of hepatic malignant cells and downregulated levels of IL-6 and Cox-2. Furthermore, KJS018A diminished the effect of PMA, an inflammatory inducer via IL-6/STAT3/Cox-2 pathway. Furthermore, KJS018A suppressed metastatic traits of hepatic malignant cells via downregulating Twist, N-cadherin, and MMP-9 while restoring E-cadherin expression. KJS018A also restrained tumor growth and levels of IL-6 and Cox-2 in immunohistochemistry staining. Taken together, these data suggest potential application of KJS018A in prevention of hepatocarcinogenesis promoted by inflammation.

7.
Int J Mol Sci ; 19(8)2018 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-30082605

RESUMO

As an innovative technology in biological applications-non-thermal plasma technique-has recently been applied to living cells and tissues. However, it is unclear whether non-thermal plasma treatment can directly regulate the growth and development of livestock. In this study, we exposed four-day-incubated fertilized eggs to plasma at 11.7 kV for 2 min, which was found to be the optimal condition in respect of highest growth rate in chickens. Interestingly, plasma-treated male chickens conspicuously grew faster than females. Plasma treatment regulated the reactive oxygen species homeostasis by controlling the mitochondrial respiratory complex activity and up-regulating the antioxidant defense system. At the same time, growth metabolism was improved due to the increase of growth hormone and insulin-like growth factor 1 and their receptors expression, and the rise of thyroid hormones and adenosine triphosphate levels through the regulation of demethylation levels of growth and hormone biosynthesis-related genes in the skeletal muscles and thyroid glands. To our knowledge, this study was the first to evaluate the effects of a non-thermal plasma treatment on the growth rate of chickens. This safe strategy might be beneficial to the livestock industry.


Assuntos
Hormônios Tireóideos/metabolismo , Trifosfato de Adenosina/metabolismo , Animais , Galinhas , Hormônio do Crescimento/metabolismo , Fator de Crescimento Insulin-Like I/metabolismo , Masculino , Espécies Reativas de Oxigênio/metabolismo
8.
Biochem Biophys Res Commun ; 503(4): 2248-2254, 2018 09 18.
Artigo em Inglês | MEDLINE | ID: mdl-29958885

RESUMO

Pancreatic ductal adenocarcinoma (PDAC) is a major malignant phenotype in pancreatic cancer, which is one of the most death causes by cancer in the world. PDAC developed from pancreatic intra-epithelial neoplasms (PanINs) and poorly diagnosed at early stages. Beside of high drug resistance, metastasis is the great concern during pancreatic cancer treatment. SALL4 expression is inherent in the upregulations of endothelial mesenchymal transition (EMT) genes and therefore promoting cancer metastasis. Furthermore, some of evidences indicated reactive oxygen species (ROS) is also influent to metastasis and self-antioxidant capacity seems a gold standard for successful metastasis rate. In this study, we have found the role Spalt like protein 4 (SALL4) to PDAC proliferation, mobility and its regulation to mitochondrial ROS via FoxM1/Prx III axis. It is possible that SALL4 mainly induces endothelial-mesenchymal transition (EMT) phenotype and favors ROS loss to facilitate metastasis efficiency in PDAC cells. Therefore, SALL4 might be a promising marker for PDAC treatment and targeting SALL4 would benefit anti-proliferative and anti-metastasis therapies.


Assuntos
Carcinoma Ductal Pancreático/metabolismo , Proteína Forkhead Box M1/metabolismo , Peroxirredoxina III/metabolismo , Espécies Reativas de Oxigênio/antagonistas & inibidores , Fatores de Transcrição/fisiologia , Movimento Celular , Proliferação de Células , Transdiferenciação Celular , Humanos , Metástase Neoplásica , Fenótipo
9.
Anticancer Res ; 38(7): 3967-3975, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29970519

RESUMO

BACKGROUND/AIM: Natural products extracted from plants can be potent for developing pharmaceutical products. Hispidin, a polyphenolic compound mainly derived from the medicinal mushroom Phellinus linteus, has been shown to have a therapeutic potential against cancer cells. Pancreatic cancer is one of the most aggressive solid malignancies with high resistance to existing drugs. Cancer stem cells (CSCs) are responsible for chemoresistance. The present study aimed to evaluate the anticancer effects of hispidin on pancreatic CSCs. MATERIALS AND METHODS: The cytotoxic effects of hispidin on BxPC-3 and AsPC-1 pancreatic cancer cells and BxPC-3 CD44+ CSCs and the synergistic effects of gemcitabine and hispidin on CSCs were evaluated by a series of in vitro experiments including the 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT), fluorescence-activated cell sorting, colony forming, Transwell assay, immunocytochemistry, sphere-forming, and western blot assays. RESULTS: Hispidin exerted antitumor effects against both BxPC-3 pancreatic cancer cells and CSCs. Furthermore, it was found that hispidin sensitized pancreatic CSCs to gemcitabine and promoted the therapeutic efficacy of gemcitabine. CONCLUSION: Hispidin might be a novel chemosensitizer for gemcitabine and a potential synergistic agent for increasing the therapeutic index of gemcitabine as a treatment for pancreatic cancer.


Assuntos
Desoxicitidina/análogos & derivados , Células-Tronco Neoplásicas/efeitos dos fármacos , Neoplasias Pancreáticas/patologia , Pironas/farmacologia , Western Blotting , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Desoxicitidina/administração & dosagem , Desoxicitidina/farmacologia , Regulação para Baixo/efeitos dos fármacos , Resistencia a Medicamentos Antineoplásicos , Humanos , Pironas/administração & dosagem , Gencitabina
10.
Cell Death Dis ; 9(2): 244, 2018 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-29445170

RESUMO

Chemotherapy is a standard treatment for non-small-cell lung cancer (NSCLC). However, the dose-limiting toxicity of drugs and the development of chemoresistance are major clinical challenges to successful management of NSCLC. Asian traditional medicine is gaining global attention as a non-toxic alternative to chemotherapy. BRM270 is an extract formulated from seven Asian medicinal plants that has been shown to inhibit tumor cell proliferation in diverse cancer types. We previously demonstrated that BRM270 suppresses tumorigenesis by negatively regulating nuclear factor-κB signaling in multidrug-resistant cancer stem cells (CSCs). In this study we report that the growth, migration, and invasion of normal human lung adenocarcinoma cells and their chemoresistant derivatives was inhibited by BRM270 treatment. Notably, BRM270 was found to modulate CSC self-renewal and tumor-initiating capacity via positive regulation of the miRNA-128. Thus, combination therapy with miRNA-128 and BRM270 may be an effective treatment strategy for chemoresistant NSCLC.


Assuntos
Adenocarcinoma de Pulmão/tratamento farmacológico , Antineoplásicos Fitogênicos/farmacologia , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Regulação Neoplásica da Expressão Gênica , Neoplasias Pulmonares/tratamento farmacológico , MicroRNAs/genética , Células A549 , Adenocarcinoma de Pulmão/genética , Adenocarcinoma de Pulmão/metabolismo , Adenocarcinoma de Pulmão/patologia , Animais , Fator Apoptótico 1 Ativador de Proteases/genética , Fator Apoptótico 1 Ativador de Proteases/metabolismo , Carcinogênese/efeitos dos fármacos , Carcinogênese/genética , Carcinogênese/metabolismo , Carcinogênese/patologia , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/metabolismo , Carcinoma Pulmonar de Células não Pequenas/patologia , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Resistencia a Medicamentos Antineoplásicos/genética , Feminino , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Camundongos , Camundongos Nus , MicroRNAs/agonistas , MicroRNAs/metabolismo , NF-kappa B/genética , NF-kappa B/metabolismo , Células-Tronco Neoplásicas/efeitos dos fármacos , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , Proteínas Proto-Oncogênicas c-bcl-2/genética , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Transdução de Sinais , Esferoides Celulares/efeitos dos fármacos , Esferoides Celulares/metabolismo , Esferoides Celulares/patologia , Carga Tumoral/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto
11.
Oncotarget ; 8(61): 104272-104285, 2017 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-29262639

RESUMO

The antibacterial and anti-inflammatory properties of lactoferricin have been ascribed to its ability to sequester essential iron. The objective of the study was to clone bovine lactoferricin (LFcinB) gene into PiggyBac Transposon vector, expression study in the bovine mammary epithelial stem cells (bMESCs) and also to determine the antimicrobial property of recombinant LFcinB against bovine mastitis-causing organisms. The PiggyBac-LFcinB was transfected into bMESCs by electroporation and a three fold of LFcinB secretion was observed in the transfected bMESCs medium by ELISA assay. Furthermore, the assessment of antimicrobial activity against mastitis causing pathogens Staphylococcus aureus and Escherichia coli demonstrated convincing evidence to prove strong antibacterial activity of LFcinB with 14.0±1.0 mm and 18.0±1.5 mm zone of inhibition against both organisms, respectively. The present study provides the convincing evidence to suggest the potential of PiggyBac transposon system to transfer antibacterial peptide into bMESCs or cow mammary gland and also pave the way to use bovine mammary gland as the bioreactors. Simultaneously, it also suggest toward commercial utilization of LFcinB bioreactor system in pharmaceutical industry.

12.
Oncotarget ; 8(49): 85642-85654, 2017 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-29156747

RESUMO

In this study, we examined the effects of non-thermal dielectric barrier discharge plasma on embryonic development in chicken eggs in order to determine the optimal level of plasma exposure for the promotion of embryonic growth. We exposed developing chicken embryos at either Hamburger-Hamilton (HH) stage 04 or HH 20 to plasma at voltages of 11.7 kV to 27.6 kV. Our results show exposure at 11.7 kV for 1 min promoted chicken embryonic development, but exposure to more duration and intensity of plasma resulted in dose-dependent embryonic death and HH 20 stage embryos survive longer than those at stage HH 04. Furthermore, plasma exposure for 4 min increased the production of reactive oxygen species (ROS) and inactivated the nuclear factor erythroid 2-related factor 2 (NRF2)-antioxidant response signaling pathway, resulting in suppression of antioxidant enzymes in the skeletal muscle tissue of the dead embryos. We also found decreased levels of adenosine triphosphate production and reductions in the expression levels of several growth-related genes and proteins. These findings indicate that inappropriate plasma exposure causes dose-dependent embryonic death via excessive accumulation of ROS, NRF2-antioxidant signaling pathway disruption, and decreased growth factor expression.

13.
Oncotarget ; 8(39): 66680-66698, 2017 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-29029547

RESUMO

Curcumin is a natural polyphenol and essential curcuminoid derived from the rhizome of the medicinal plant Curcuma longa (L.) is universally acknowledged as "Wonder drug of life". It is a vital consumable and restorative herb, commonly keened for several ailments such as cancer, arthritis, pain, bruises, gastrointestinal quandaries, swelling and much more. Despite its enormous curative potential, the poor aqueous solubility and consequently, minimal systemic bioavailability with rapid degradation are some of the major factors which restrict the utilization of curcumin at medical perspective. However, to improve its clinically relevant parameters, nanoformulation of curcumin is emerging as a novel substitute for their superior therapeutic modality. It enhances its aqueous solubility and targeted delivery to the tissue of interest that prompts to enhance the bioavailability, better drug conveyance, and more expeditious treatment. Subsequent investigations are endeavored to enhance the bio-distribution of native curcumin by modifying with felicitous nano-carriers for encapsulation. In this review, we specifically focus on the recent nanotechnology based implementations applied for overcoming the innate constraints of native curcumin and additionally the associated challenges which restrict its potential therapeutic applications both in vivo and in-vitro studies, as well as their detailed mechanism of action, have additionally been discussed.

14.
BMC Complement Altern Med ; 17(1): 304, 2017 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-28606135

RESUMO

BACKGROUND: Several efforts have been deployed to cure osteosarcoma, a high-grade malignant bone tumour in children and adolescents. However, some challenges such as drug resistance, relapse, and tumour metastasis remain owing to the existence of cancer stem cells (CSC). There is an urgent need to develop cost-effective and safe therapies. METHODS: Wogonin, an extract from the root of Scutellaria baicalensis, has long been considered as a promising natural and safe compound for anti-tumourigenesis, particularly to inhibit tumour invasion and metastasis. Hoechst 33,342 staining, wound healing assay, sphere formation assay, western blotting, and gelatin zymography assays were performed in CD133 positive osteosarcoma cell. RESULTS: In this study, we examined the effect of Wogonin on the mobility of human osteosarcoma CSC. Wogonin induces apoptosis of human osteosarcoma CSC, inhibits its mobility in vitro via downregulation of MMP-9 expression, and represses its renewal ability. CONCLUSIONS: We demonstrated that Wogonin decreases the renewal capacity of CSC. By inhibiting the formation of and reducing the size of spheres, Wogonin at a concentration of 40-80 µM effectively minimizes potential risk from CSC. Taken together, we have demonstrated a new approach for developing a potential therapy for osteosarcoma.


Assuntos
Antígeno AC133/metabolismo , Antineoplásicos Fitogênicos/farmacologia , Flavanonas/farmacologia , Metaloproteinase 9 da Matriz/genética , Células-Tronco Neoplásicas/efeitos dos fármacos , Osteossarcoma/enzimologia , Antígeno AC133/genética , Apoptose/efeitos dos fármacos , Humanos , Metaloproteinase 9 da Matriz/metabolismo , Células-Tronco Neoplásicas/citologia , Células-Tronco Neoplásicas/enzimologia , Osteossarcoma/tratamento farmacológico , Osteossarcoma/genética , Osteossarcoma/metabolismo
15.
Chin J Nat Med ; 15(1): 15-40, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28259249

RESUMO

Wogonin is a plant flavonoid compound extracted from Scutellaria baicalensis (Huang-Qin or Chinese skullcap) and has been studied thoroughly by many researchers till date for its anti-viral, anti-oxidant, anti-cancerous and neuro-protective properties. Numerous experiments conducted in vitro and in vivo have demonstrated wogonin's excellent tumor inhibitory properties. The anti-cancer mechanism of wogonin has been ascribed to modulation of various cell signaling pathways, including serine-threonine kinase Akt (also known as protein kinase B) and AMP-activated protein kinase (AMPK) pathways, p53-dependent/independent apoptosis, and inhibition of telomerase activity. Furthermore, wogonin also decreases DNA adduct formation with a carcinogenic compound 2-Aminofluorene and inhibits growth of drug resistant malignant cells and their migration and metastasis, without any side effects. Recently, newly synthesized wogonin derivatives have been developed with impressive anti-tumor activity. This review is the succinct appraisal of the pertinent articles on the mechanisms of anti-tumor properties of wogonin. We also summarize the potential of wogonin and its derivatives used alone or as an adjunct therapy for cancer treatment. Furthermore, pharmacokinetics and side effects of wogonin and its analogues have also been discussed.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Flavanonas/farmacologia , Neoplasias/metabolismo , Fitoterapia , Scutellaria baicalensis/química , Animais , Antineoplásicos Fitogênicos/uso terapêutico , Adutos de DNA/metabolismo , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Medicamentos de Ervas Chinesas/uso terapêutico , Flavanonas/uso terapêutico , Humanos , Neoplasias/tratamento farmacológico , Transdução de Sinais/efeitos dos fármacos
16.
Sci Rep ; 7: 41917, 2017 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-28167819

RESUMO

This study was conducted to determine the effects of argon plasma on the growth of soybean [Glycine max (L.) Merr.] sprouts and investigate the regulation mechanism of energy metabolism. The germination and growth characteristics were modified by argon plasma at different potentials and exposure durations. Upon investigation, plasma treatment at 22.1 kV for 12 s maximized the germination and seedling growth of soybean, increasing the concentrations of soluble protein, antioxidant enzymes, and adenosine triphosphate (ATP) as well as up-regulating ATP a1, ATP a2, ATP b1, ATP b2, ATP b3, target of rapamycin (TOR), growth-regulating factor (GRF) 1-6, down-regulating ATP MI25 mRNA expression, and increasing the demethylation levels of the sequenced region of ATP a1, ATP b1, TOR, GRF 5, and GRF 6 of 6-day-old soybean sprouts. These observations indicate that argon plasma promotes soybean seed germination and sprout growth by regulating the demethylation levels of ATP, TOR, and GRF.


Assuntos
Argônio/farmacologia , Desmetilação , Metabolismo Energético/genética , Proteínas de Plantas/genética , Gases em Plasma/farmacologia , Plântula/crescimento & desenvolvimento , Metabolismo Energético/efeitos dos fármacos , Perfilação da Expressão Gênica , Redes Reguladoras de Genes , Germinação , Plântula/efeitos dos fármacos , Plântula/metabolismo , /metabolismo
17.
Biomed Pharmacother ; 87: 741-754, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28110264

RESUMO

Hepatocellular carcinoma (HCC) is a major threat to human health worldwide and development of novel antineoplastic drug is demanding task. BRM270 is a proprietary combination of traditional medicinal herbs, has been shown to be effective against a wide range of stem-like cancer initiating cells (SLCICs). However, the underlying mechanism and antitumor efficacy of BRM270 in human hepatocellular carcinoma (HCC) cells have not been well elucidated till date. Here we studied the tumoricidal effect of BRM270 on human-CD133+ expressing stem-like HepG-2 and SNU-398 cells. Gene expression profiling by qPCR and specific cellular protein expressions was measured using immunocytochemistry/western blot analysis. In vivo efficacy of BRM270 has been elucidated in the SLCICs induced xenograft model. In addition, 2DG-(2-Deoxy-d-Glucose) optical-probe guided tumor monitoring was performed to delineate the size and extent of metastasized tumor. Significant (P<0.05) induction of Annexin-V positive cell population and dose-dependent upregulation of caspase-3 confirmed apoptotic cell death by pre/late apoptosis. In addition, bright field and fluorescence microscopy of treated cells revealed apoptotic morphology and DNA fragmentation in Hoechst33342 staining. Levels of c-Myc, Bcl-2 and c-Jun as invasive potential apoptotic marker were detected using qPCR/Western blot. Moreover, BRM270 significantly (P<0.05) increased survival rate that observed by Kaplan-Meier log rank test. In conclusion, these results indicate that BRM270 can effectively inhibit proliferation and induce apoptosis in hepatoma cells by down-regulating CyclinD1/Bcl2 mediated c-Jun apoptotic pathway.


Assuntos
Apoptose/efeitos dos fármacos , Carcinoma Hepatocelular/tratamento farmacológico , Proliferação de Células/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Pontos de Checagem da Fase G2 do Ciclo Celular/efeitos dos fármacos , Neoplasias Hepáticas/tratamento farmacológico , Pontos de Checagem da Fase M do Ciclo Celular/efeitos dos fármacos , Animais , Carcinoma Hepatocelular/genética , Caspase 3/genética , Linhagem Celular Tumoral , Modelos Animais de Doenças , Células Hep G2 , Xenoenxertos/efeitos dos fármacos , Humanos , Neoplasias Hepáticas/genética , Masculino , Camundongos , Células-Tronco Neoplásicas/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/genética , Transcriptoma/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto/métodos , Proteína X Associada a bcl-2/genética
18.
Oncotarget ; 8(66): 110540-110551, 2017 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-29299167

RESUMO

The existence of cancer stem cells (CSCs) is the main reason for failure of cancer treatment caused by drug resistance. Therefore, eradicating cancers by targeting CSCs remains a significant challenge. In the present study, because of the important role of BMI-1 proto-oncogene, polycomb ring finger (BMI-1) and C-terminal Mucin1 (MUC1-C) in tumor growth and maintenance of CSCs, we aimed to confirm that microRNA miR-128, as an inhibitor of BMI-1 and MUC1-C, could effectively suppress paclitaxel (PTX)-resistant lung cancer stem cells. We showed that CSCs have significantly higher expression levels of BMI-1, MUC1-C, stemness proteins, signaling factors, and higher malignancy compared with normal tumor cells. After transfection with miR-128, the BMI-1 and MUC1-C levels in CSCs were suppressed. When miR-128 was stably expressed in PTX-resistant lung cancer stem cells, the cells showed decreased proliferation, metastasis, self-renewal, migration, invasive ability, clonogenicity, and tumorigenicity in vitro and in vivo and increased apoptosis compared with miR-NC (negative control) CSCs. Furthermore, miR-128 effectively decreased the levels of ß-catenin and intracellular signaling pathway-related factors in CSCs. MiR-128 also decreased the luciferase activity of MUC1 reporter constructs and reduced the levels of transmembrane MUC1-C and BMI-1. These results suggested miR-128 as an attractive therapeutic strategy for PTX-resistant lung cancer via inhibition of BMI-1 and MUC1-C.

19.
Int J Oncol ; 48(1): 84-98, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26573874

RESUMO

Tumor initiating cancer stem-like cells (TICSCs) have recently become the object of intensive study. Human-Lipocalin-2 (hLCN2) acts as a biomarker for cancers. The aim of the present study was to explore new insights regarding the potential role of LCN2 in inducing epithelial to mesenchymal transition (EMT) by transfecting LCN2 into CD133+-A549-TICSCs and its cross-talk with the NF-κB signaling pathway in adenocarcinoma of the lung. Furthermore, EMT was confirmed by transcriptomic analysis, immunoblotting and immunocyto/histochemical analyses. Tumorigenesis and metastasis were confirmed by molecular therapeutics tracer 2DG infrared optical probe in BALB/cSIc-nude mice. It was observed that the CD133+-expressing-LCN2-A549 TICSCs population increased in adenocarcinoma of the lung compared to the normal lung tissue. The expressions of genes involved in stemness, adhesion, motility and drug efflux was higher in these cells than in their non-LCN2 expressing counterparts. The present study revealed that elevated expression of LCN2 significantly induced metastasis via EMT. Overexpression of LCN2 significantly increased stemness and tumor metastasis by modulating NF-κB cellular signaling. BRM270, a novel inhibitor of NF-κB plays a significant role in the EMT reversal. BRM270, a naturaceutical induces cell shrinkage, karyorrhexis and programmed cell death (PCD) which were observed by Hoechst 33342 staining while flow cytometry analysis showed significant (P<0.05) decrease in cell population from G0-G1 phases. Also, 2DG guided in vivo model revealed that BRRM270 significantly (P<0.0003) reduced tumor metastasis and increased percent survival in real-time with complete resection. An elaborate study on the novel concept with respect to linking of naturaceutics as selective and potential anticancer agent that eliminates the elevated LCN2 induced EMT and tumor dissemination through cooperation with the NF-κB signaling as the baseline data for the planning of new therapeutic strategies was conducted for the first time. Our results also illustrate a molecular mechanistic approach for 2DG-guided molecular imaging-based cancer therapy using BRM270 as a novel cancer therapeutic drug to enhance the effect of doxorubicin (Dox)-resistant LCN2 induced metastasis of solid tumors in nude mice.


Assuntos
Proteínas de Fase Aguda/genética , Adenocarcinoma/genética , Carcinogênese/genética , Resistencia a Medicamentos Antineoplásicos/genética , Transição Epitelial-Mesenquimal/genética , Lipocalinas/genética , Neoplasias Pulmonares/genética , Proteínas Proto-Oncogênicas/genética , Proteínas de Fase Aguda/biossíntese , Adenocarcinoma/patologia , Adenocarcinoma de Pulmão , Animais , Apoptose/efeitos dos fármacos , Linhagem Celular Tumoral , Doxorrubicina/administração & dosagem , Medicamentos de Ervas Chinesas/administração & dosagem , Epigênese Genética/genética , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Humanos , Lipocalina-2 , Lipocalinas/biossíntese , Neoplasias Pulmonares/patologia , Camundongos , NF-kappa B/genética , Metástase Neoplásica , Proteínas Proto-Oncogênicas/biossíntese , Ensaios Antitumorais Modelo de Xenoenxerto
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