Invasiveness and epithelial-mesenchymal transition (EMT) are main patterns of metastatic disease, which is the major cause cancer-related mortality in human malignant melanoma cells. Tea and its consumption extract are associated with a lower risk of several types of cancer and have anti-inflammatory and antioxidative biological effects. However, the anti-EMT and anti-cancer stemness effect of black tea ethanol extracts (BTEE) in human melanoma remain poorly understood.
View Article and Find Full Text PDFGossypol, a natural polyphenolic compound, possesses antivirus activity and induces cell death of different types of tumors. However, the efficacy of gossypol on lung carcinoma metastases and epithelial to mesenchymal transition remains unknown. The aim of the present work was to determine the cellular and molecular mechanism of the anti-cancer and anti-metastatic efficacies of gossypol on human lung carcinoma cells.
View Article and Find Full Text PDFMelanoma is a highly aggressive, lethal, and malignant cancer. Once diagnosed early, it can be easily removed and cured with satisfaction. Although many methods such as surgery, chemotherapy, radiotherapy, and immunotherapy have been used to treat this disease at an advanced stage, the outcomes are poor.
View Article and Find Full Text PDFCancer metastasis is the major cause of the high mortality risk of patients with osteosarcoma. Cinnamaldehyde has been shown to exhibit multiple tumour-suppressing activities, but its role in human osteosarcoma is not yet completely defined. In this study, the antimetastatic effect of cinnamaldehyde on highly metastatic human osteosarcoma cells was observed and using Saos-2 and 143B cells.
View Article and Find Full Text PDFBackground: Comorbidities and stages may influence the prognosis of melanoma patients in Taiwan and need to be determined.
Methods: We performed a retrospective cohort study by using the national health insurance research database in Taiwan. Patients with a primary diagnosis of melanoma by the Taiwan Cancer Registry from 2009 to 2017 were recruited as the study population.
Cinnamomum cassia possesses antioxidative activity and induces the apoptotic properties of various cancer types. However, its effect on osteosarcoma invasion and cancer stemness remains ambiguous. Here, we examined the molecular evidence of the anti-invasive effects of ethanoic C.
View Article and Find Full Text PDFMetastasis is the most prevalent cause of cancer-associated deaths amongst patients with cervical cancer. Epithelial-mesenchymal transition (EMT) is essential for carcinogenesis, and it confers metastatic properties to cancer cells. Gossypol is a natural polyphenolic compound with anti-inflammation, anti-oxidant, and anticancer activities.
View Article and Find Full Text PDFMetastasis is the most prevalent cause of treatment failure in patients with colon cancer. Gossypol is reported to exhibit antioxidant, anticancer, antivirus and antimicrobial properties. However, the effects of gossypol on cancer invasion and tumour growth of human colon cancer remain unclear.
View Article and Find Full Text PDFAmphetamine (AMPH), an appetite suppressant, alters expression levels of neuropeptide Y (NPY) and cocaine- and amphetamine-regulated transcript (CART) in the hypothalamus. This study explored the potential role of cJun-N-terminal kinases (JNK) in appetite control, mediated by reactive oxygen species (ROS) and activator protein-1 (AP-1) in AMPH-treated rats. Rats were given AMPH daily for 4 days.
View Article and Find Full Text PDFThymoquinone is a phytochemical compound isolated from Nigella sativa and has various biological effects, including anti-inflammation, antioxidation, and anticancer. Here, we further investigated the anticancer effects and associated molecular mechanism of 2-methyl-5-isopropyl-1,4-benzoquinone (thymoquinone) on human renal carcinoma cell lines 786-O and 786-O-SI3 and transitional carcinoma cell line BFTC-909. Results showed that thymoquinone significantly reduced cell viability, inhibited the colony formation of renal cancer cells, and induced cell apoptosis and mitochondrial membrane potential change in both cancer cells.
View Article and Find Full Text PDFHypoxia-inducible factor 1 (HIF-1) is a transcriptional activator responding to hypoxia. Amphetamine (AMPH), however, can activate HIF-1 under normoxic conditions, which is associated with the co-activation of oxidative stress. Hypothalamic neuropeptides and anti-oxidative enzymes have been found to participate in amphetamine (AMPH)-mediated appetite control.
View Article and Find Full Text PDFCinnamomum cassia has been widely studied in different fields to reveal its antidiabetic, antidepressive, antiviral, anti-inflammatory, antiosteoporotic, and anticancer effects. Its antimalignant activities have been explored in lung cancer, breast cancer, colorectal cancer, and even oral cancer, but the detailed signaling mechanism and effects of this plant on animal models need to be clarified. In the current study, C.
View Article and Find Full Text PDFCancer metastasis is a vital trait in malignancies with complicated early diagnosis and therapeutic management. Therefore, the development of new remedies and the utilization of natural medicines that target metastasis are of great interest and have been studied extensively. Chinese medicinal herbs have various anti-carcinogenesis properties; however, the in vitro effect and mechanism of on cancer cell metastasis remains poorly understood.
View Article and Find Full Text PDFexhibits antioxidative, apoptotic, and cytostatic properties. These activities have been attributed to the modulation of several biological processes and are beneficial for possible pharmaceutical applications. However, the potential of in retarding lung adenocarcinoma cells metastasis remains ambiguous.
View Article and Find Full Text PDFLeptin is an adipose tissue hormone which plays an important role in regulating energy homeostasis. Amphetamine (AMPH) is a drug of appetite suppressant, which exerts its effect by decreasing the expression of hypothalamic neuropeptide Y (NPY) and increasing that of cocaine- and amphetamine-regulated transcript (CART). This study investigated whether leptin, the leptin receptor (LepRb) and the signal transducer and activator of transcription-3 (STAT3) were involved in NPY/CART-mediated appetite suppression in AMPH-treated rats.
View Article and Find Full Text PDFEpithelial-mesenchymal transition (EMT) is a process through which epithelial cells are transformed into mesenchymal cells; EMT diminishes cell polarity and cell-cell adhesion in cancer cells, leading to enhanced migratory and invasive properties. In this experiment, zymography, cell invasion, and migration assays were performed. Results indicated that Duchesnea indica extracts (DIE) inhibited highly metastatic A549 and H1299 cells by reducing the secretions of matrix metalloproteinase-2 and urokinase-type plasminogen activator.
View Article and Find Full Text PDFMetastasis is the most common cause of cancer-related mortality in patients, and epithelial-mesenchymal transition (EMT) is essential for cancer metastasis and antidrug resistance. Cinnamomum cassia has several antioxidative, anti-inflammatory, and anticancer biological effects. However, the anti-EMT effect of C.
View Article and Find Full Text PDFHypothalamic neuropeptide Y (NPY) and proopiomelanocortin (POMC) have been documented to participate in amphetamine (AMPH)-induced appetite suppression. This study investigated whether ghrelin signalling is associated with changes in NPY/POMC-mediated appetite control. Rats were given AMPH daily for four days, and changes in food intake, body weight, plasma ghrelin, hypothalamic NPY, melanocortin 3 receptor (MC3R), ghrelin O-acyltransferase (GOAT), acyl ghrelin (AG) and ghrelin receptor (GHSR1a) were examined and compared.
View Article and Find Full Text PDFAutophagy is a self-destructive process that degrades cytoplasmic constituents. In our previous study, Koelreuteria formosana ethanolic extract (KFEE), which is obtained from natural plants endemic to Taiwan, has inhibited cell metastasis in renal carcinoma cells. However, the anticancer effects of KFEE on colon cancer remain unclear.
View Article and Find Full Text PDFMany natural flavonoids have cytostatic and apoptotic properties; however, we little know whether the effect of synthetic 3-hydroxyflavone on metastasis and tumor growth of human osteosarcoma. Here, we tested the hypothesis that 3-hydroxyflavone suppresses human osteosarcoma cells metastasis and tumor growth. 3-hydroxyflavone, up to 50 μM without cytotoxicity, inhibited U2OS and 143B cells motility, invasiveness and migration by reducing matrix metalloproteinase (MMP)-2 and urokinase-type plasminogen activator (u-PA) and also impaired cell adhesion to gelatin.
View Article and Find Full Text PDFAmphetamine (AMPH)-induced appetite suppression is associated with changes in hypothalamic reactive oxygen species (ROS), antioxidants, neuropeptides, and plasma glucocorticoid. This study explored whether ROS and glucocorticoid response element (GRE), which is the promoter site of corticotropin-releasing hormone (CRH) gene, participated in neuropeptides-mediated appetite control. Rats were treated daily with AMPH for four days, and changes in food intake, plasma glucocorticoid and expression levels of hypothalamic neuropeptide Y (NPY), proopiomelanocortin (POMC), superoxide dismutase (SOD), CRH, and glucocorticoid receptor (GR) were examined and compared.
View Article and Find Full Text PDFEpithelial-to-mesenchymal transition (EMT) and invasion potential have been considered as essential factors in cancer metastasis, which is the major cause of cancer death. EMT is a multi-step process that involves gain invasion, cytoskeleton change, cell adhesion, and proteolytic extracellular matrix degradation. Epicatechin-3-gallate (ECG), which is a natural polyphenolic component of green tea, elicits several antioxidant and anti-inflammatory effects.
View Article and Find Full Text PDFMelanoma cell metastasis is the primary cause of patient death. Thus, various treatment strategies have been developed to prevent metastasis. Abietic acid (AA) is an organic compound commonly found in trees.
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