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Cancer AND phytochemicals

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https://www.readbyqxmd.com/read/28435473/downregulation-of-mitochondrial-cyclooxygenase-2-inhibits-the-stemness-of-nasopharyngeal-carcinoma-by-decreasing-the-activity-of-dynamin-related-protein-1
#1
Teng-Jian Zhou, Shi-Li Zhang, Cheng-Yong He, Qun-Ying Zhuang, Pei-Yu Han, Sheng-Wei Jiang, Huan Yao, Yi-Jun Huang, Wen-Hua Ling, Yu-Chun Lin, Zhong-Ning Lin
Cancer stem cells (CSCs) are a small subset of malignant cells, possessing stemness, with strong tumorigenic capability, conferring resistance to therapy and leading to the relapse of nasopharyngeal carcinoma (NPC). Our previous study suggested that cyclooxygenase-2 (COX-2) would be a novel target for the CSCs-like side population (SP) cells in NPC. In the present study, we further found that COX-2 maintained the stemness of NPC by enhancing the activity of mitochondrial dynamin-related protein 1 (Drp1), a mitochondrial fission mediator, by studying both sorted SP cells from NPC cell lines and gene expression analyses in NPC tissues...
2017: Theranostics
https://www.readbyqxmd.com/read/28435252/polyphenol-nanoformulations-for-cancer-therapy-experimental-evidence-and-clinical-perspective
#2
REVIEW
Yasamin Davatgaran-Taghipour, Salar Masoomzadeh, Mohammad Hosein Farzaei, Roodabeh Bahramsoltani, Zahra Karimi-Soureh, Roja Rahimi, Mohammad Abdollahi
Cancer is defined as the abnormal cell growth that can cause life-threatening malignancies with high financial costs for patients as well as the health care system. Natural polyphenols have long been used for the prevention and treatment of several disorders due to their antioxidant, anti-inflammatory, cytotoxic, antineoplastic, and immunomodulatory effects discussed in the literature; thus, these phytochemicals are potentially able to act as chemopreventive and chemotherapeutic agents in different types of cancer...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28432923/triterpenoid-saponins-from-the-roots-of-spergularia-marginata
#3
David Pertuit, Mustafa Larshini, Malika Aitsidi Brahim, Mohamed Markouk, Anne-Claire Mitaine-Offer, Thomas Paululat, Stéphanie Delemasure, Patrick Dutartre, Marie-Aleth Lacaille-Dubois
Phytochemical investigations of the roots of Spergularia marginata had led to the isolation of four previously undescribed triterpenoid saponins, a known one and one spinasterol glycoside. Their structures were established by extensive NMR and mass spectroscopic techniques as 3-O-β-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-α-L- arabinopyranosyl ester, 3-O-β-D-glucopyranosyl-(1 → 3)-β-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)- α-L-arabinopyranosyl ester, 3-O-β-D-glucopyranosyl-(1 → 4)-3-O-sulfate-β-D-glucuronopyranosyl echinocystic acid 28-O-α-L-arabinopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-arabinopyranosyl ester, and 3-O-β-D-glucopyranosyl-(1 → 4)-β-D-glucuronopyranosyl 21-O-acetyl acacic acid...
April 19, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28431267/mir-19-targeting-of-gsk3%C3%AE-mediates-sulforaphane-suppression-of-lung-cancer-stem-cells
#4
Jianyun Zhu, Shijia Wang, Yue Chen, Xiaoting Li, Ye Jiang, Xue Yang, Yuan Li, Xiaoqian Wang, Yu Meng, Mingming Zhu, Xiao Ma, Cong Huang, Rui Wu, Chunfeng Xie, Shanshan Geng, Jieshu Wu, Caiyun Zhong, Hongyu Han
Cancer stem cells (CSCs) play a central role in the development of cancer. The canonical Wnt/β-catenin pathway is critical for maintaining stemness of CSCs. Phytochemicals from dietary compounds possess anti-CSCs properties and have been characterized as promising therapeutic agents for the prevention and treatment of many cancers. To date, the involvement and function of miR-19, a key oncogenic miRNA, in regulating Wnt/β-catenin pathway and lung CSCs has not been defined. Meanwhile, the effect of sulforaphane (SFN) on lung CSCs also remains to be elucidated...
April 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28423681/sulforaphane-for-the-chemoprevention-of-bladder-cancer-molecular-mechanism-targeted-approach
#5
REVIEW
Andrew Leone, Gregory Diorio, Wade Sexton, Michael Schell, Mark Alexandrow, Jed W Fahey, Nagi B Kumar
The clinical course for both early and late stage Bladder Cancer (BC) continues to be characterized by significant patient burden due to numerous occurrences and recurrences requiring frequent surveillance strategies, intravesical drug therapies, and even more aggressive treatments in patients with locally advanced or metastatic disease. For these reasons, BC is also the most expensive cancer to treat. Fortunately, BC offers an excellent platform for chemoprevention interventions with potential to optimize the systemic and local exposure of promising agents to the bladder mucosa...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420235/garcinol-from-garcinia-indica-downregulates-cancer-stem-like-cell-biomarker-aldh1a1-in-nsclc-a549-cells-through-ddit3-activation
#6
Jinhan Wang, Liwen Wang, Chi-Tang Ho, Kunsheng Zhang, Qiang Liu, Hui Zhao
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer and patients with NSCLC show high mortality rates still because of failure to clean up cancer stem cells (CSCs). The anticancer activity of phytochemical garcinol has been identified in various cancer cell models. However, the effect of garcinol on NSCLC cell lines is still not clear. Of the NSCLC cell lines we tested, A549 cells were the most sensitive to garcinol. Interestingly, Aldehyde Dehydrogenase 1 Family Member A1 (ALDH1A1) is preferentially expressed in A549 cells and downregulated by the addition of garcinol...
April 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28417090/role-of-traditional-islamic-and-arabic-plants-in-cancer-therapy
#7
REVIEW
Rizwan Ahmad, Niyaz Ahmad, Atta Abbas Naqvi, Adeeb Shehzad, Mastour Safer Al-Ghamdi
ETHNO PHARMACOLOGICAL RELEVANCE: This review article underlines individual Traditional Islamic and Arabic plant (TAI) and their role in treating cancer. The aim of the study is to specifically evaluate the progress of herbs, Arabic and Islamic traditional herbs in particular, applied in cancer treatment, so far. MATERIALS AND METHODS: Islamic and Arabic plants were selected and identified through different literature survey using "Google scholar", "Web of science", "Scopus" and "PubMed"...
April 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28403658/in-vitro-growth-inhibition-and-cytotoxicity-of-euphorbia-caducifolia-against-four-human-cancer-cell-lines-and-its-phytochemical-characterisation
#8
Shaista Bano, Bina Shaheen Siddiqui, Ahsana Dar Farooq, Sabira Begum, Faheema Siddiqui, Muhammad Kashif, Mudassar Azhar
Several Euphorbia species have been used in folklore as cancer remedies, however, scientific studies on the cytotoxicity (in vitro studies) of Euphorbia caducifolia are lacking. In present study, anticancer potential of E. caducifolia aerial parts ethanol extract and its fractions were evaluated against human lung (NCI-H460), breast (MCF-7), prostate (PC-3) and cervical (HeLa) cancer cell lines, using sulphorhodamine-B in vitro cytotoxicity (in vitro studies) assay. The ethanol extract demonstrated growth inhibitory effect against all aforementioned cancer cell lines with IC50, 19-135 μg/mL and LC50, ~220 μg/mL, and its petroleum ether fraction obtained on bioactivity guided fraction showed highest activity with IC50, 28-70 μg/mL and LC50, 71 μg/mL against NCI-H460 and MCF-7 cell lines...
April 13, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28397551/biological-effects-and-clinical-applications-of-dwarf-elder-sambucus-ebulus-l-a-review
#9
Marzie Jabbari, Babak Daneshfard, Majid Emtiazy, Ali Khiveh, Mohammad Hashem Hashempur
Dwarf elder ( Sambucus ebulus L) is one of the best known medicinal herbs since ancient times. In view of its benefits as a widely applicable phytomedicine, it is still used in folk medicine of different parts of the world. In addition to its nutritional values, dwarf elder contains different phytochemicals among which flavonoids and lectins are responsible for most of its therapeutic effects. Dwarf elder has been used for different ailments including: joint pains, cold, wounds, and infections. Nevertheless, recent evidence has revealed its potentials for making attempts at treating cancer and metabolic disorders...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28396252/tea-phytochemicals-for-breast-cancer-prevention-and-intervention-from-bench-to-bedside-and-beyond
#10
REVIEW
Dona Sinha, Jaydip Biswas, Seyed Mohammad Nabavi, Anupam Bishayee
The National Cancer Institute of the United States had projected breast cancer as one of the topmost prevalent malignancies of 2016. It was estimated that in 2016, 246,660 new cases of invasive breast cancer were expected to be diagnosed in women in the US, along with 61,000 new cases of non-invasive (in situ) breast cancer. The heterogeneity of breast cancer accounts for its differential molecular subtyping. Recent incorporation of high throughput approaches helps early prognosis of breast cancer, but recurrence of the disease stands to be one of the most daunting fact behind non-availability of third line treatment...
April 7, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28394276/targeting-colorectal-cancer-proliferation-stemness-and-metastatic-potential-using-brassicaceae-extracts-enriched-in-isothiocyanates-a-3d-cell-model-based-study
#11
Lucília P Pereira, Patrícia Silva, Marlene Duarte, Liliana Rodrigues, Catarina M M Duarte, Cristina Albuquerque, Ana Teresa Serra
Colorectal cancer (CRC) recurrence is often attributable to circulating tumor cells and/or cancer stem cells (CSCs) that resist to conventional therapies and foster tumor progression. Isothiocyanates (ITCs) derived from Brassicaceae vegetables have demonstrated anticancer effects in CRC, however little is known about their effect in CSCs and tumor initiation properties. Here we examined the effect of ITCs-enriched Brassicaceae extracts derived from watercress and broccoli in cell proliferation, CSC phenotype and metastasis using a previously developed three-dimensional HT29 cell model with CSC-like traits...
April 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28391699/chemoprevention-of-colorectal-cancer-by-artocarpin-a-dietary-phytochemical-from-artocarpus-heterophyllus
#12
Guochuan Sun, Zongping Zheng, Mee-Hyun Lee, Yijuan Xu, Soouk Kang, Zigang Dong, Mingfu Wang, Zhennan Gu, Haitao Li, Wei Chen
Artocarpus heterophyllus is an evergreen tree distributed in tropical regions, and its fruit (jackfruit) is well-known as the world's largest tree-borne fruit. Although A. heterophyllus has been widely used in folk medicines against inflammation, its potential in cancer chemoprevention remains unclear. Herein we identified artocarpin from A. heterophyllus as a promising colorectal cancer chemopreventive agent by targeting Akt kinase. Phenotypically, artocarpin exhibited selective cytotoxicity against human colon cancer cells...
April 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28385566/pinocembrin-enriched-fraction-of-elytranthe-parasitica-l-danser-induces-apoptosis-in-hct-116-colorectal-cancer-cells
#13
Nimmy Kumar, Subhankar Biswas, Akhila Hosur Shrungeswara, Sanchari Basu Mallik, Mathew Hipolith Viji, Jessy Elizabeth Mathew, Jesil Mathew, K Nandakumar, Richard Lobo
BACKGROUND: Colorectal cancer (CRC) is a highly predominant malignancy affecting millions worldwide. Plants belonging to Loranthaceae family have remarkable chemopreventive properties. OBJECTIVE: The goal of the present study was to assess the antiproliferative and apoptosis-inducing effects of stem parts of Elytranthe parasitica (L.) Danser (EP) on colorectal cancer and identify the bioactive phytochemicals. MATERIAL AND METHODS: EP methanol extract (EP...
April 3, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28385055/phytochemical-composition-anti-inflammatory-activity-and-cytotoxic-effects-of-essential-oils-from-three-pinus-spp
#14
Mimoza Basholli-Salihu, Roswitha Schuster, Avni Hajdari, Dafina Mulla, Helmut Viernstein, Behxhet Mustafa, Monika Mueller
CONTEXT: Inflammation and cell differentiation lead to a number of severe diseases. In the recent years, various studies focused on the anti-inflammatory and anticancer activity of essential oils (EOs) of numerous plants, including different Pinus species. OBJECTIVE: The phytochemical composition, anti-inflammatory and cytotoxic activity of EOs from needles and twigs of Pinus heldreichii Christ (Pinaceae) and P. peuce Griseb., and from needles, twigs and cones of P...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28382454/current-state-and-prospects-of-the-phytosynthesized-colloidal-gold-nanoparticles-and-their-applications-in-cancer-theranostics
#15
REVIEW
Muhammad Ovais, Abida Raza, Shagufta Naz, Nazar Ul Islam, Ali Talha Khalil, Shaukat Ali, Muhammad Adeeb Khan, Zabta Khan Shinwari
The design, development, and biomedical applications of phytochemical-based green synthesis of biocompatible colloidal gold nanoparticles (AuNPs) are becoming an emerging field due to several advantages (safer, eco-friendly, simple, fast, energy efficient, low-cost, and less toxic) over conventional chemical synthetic procedures. Biosynthesized colloidal gold nanoparticles are remarkably attractive in several biomedical applications including cancer theranostics due to small size, unusual physico-chemical properties, facile surface modification, high biocompatibility, and numerous other advantages...
April 5, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28381676/secoiridoid-glucosides-from-the-twigs-of-syringa-oblata-var-dilatata-and-their-neuroprotective-and-cytotoxic-activities
#16
Kyoung Jin Park, Won Se Suh, Lalita Subedi, Sun Yeou Kim, Sang Un Choi, Kang Ro Lee
Phytochemical investigation of the twigs of Syringa oblata var. diatata led to the isolation of two new secoiridoid glucosides, dilatioside A-B (1-2), along with thirteen known ones (3-15). The structures were determined by spectroscopic methods including one and two dimensional (1- and 2D-) NMR techniques, high resolution (HR)-FAB-MS, and chemical methods. The isolated compounds (1-15) were tested for the induction of nerve growth factor (NGF) secretion in a C6 rat glioma cell line and their cytotoxicity against four human cancer cell lines (A549, SK-OV-3, SK-MEL-2, HCT15) in vitro using a sulforhodamine B bioassay...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28376770/phytochemical-analysis-with-free-radical-scavenging-nitric-oxide-inhibition-and-antiproliferative-activity-of-sarcocephalus-pobeguinii-extracts
#17
Emmanuel Mfotie Njoya, Aristide Mfifen Munvera, Pierre Mkounga, Augustin Ephrem Nkengfack, Lyndy Joy McGaw
BACKGROUND: Free radicals have been implicated in the pathogenesis of diverse metabolic disorders including cancer. Therefore, fighting against free radicals has become an important strategy in the prevention or treatment of such diseases, in addition to direct or indirect anticancer chemotherapy. Sarcocephalus pobeguinii has been used traditionally to treat various diseases in which excess production of free radicals is implicated, warranting investigation of its free radical scavenging, anticancer and anti-inflammatory activity...
April 4, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28374632/phorbol-ester-type-diterpenoids-from-the-twigs-and-leaves-of-croton-tiglium
#18
Lin Jiang, Yu-Bo Zhang, Si-Qi Jiang, Yi-Duo Zhou, Ding Luo, Qian-Wen Niu, Yi-Rui Qian, Yao-Lan Li, Guo-Cai Wang
Phytochemical investigation of the ethanol extract from the twigs and leaves of Croton tiglium led to the isolation of two new phorbol esters (1-2) and seven known ones (3-9). Their structures were elucidated by the analyses of extensive spectroscopic data (IR, MS, and 1D and 2D NMR) and comparing with related compounds. Meanwhile, compounds 1-9 were determined for their cytotoxic activities on human lung cancer cell line A549. Among them, 1-2 were inactive against the cell line A549 (IC50 > 100 μM), but compounds 3 and 7 showed weak activities...
April 4, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28371048/duchesnea-indica-extract-suppresses-the-migration-of-human-lung-adenocarcinoma-cells-by-inhibiting-epithelial-mesenchymal-transition
#19
Pei-Ni Chen, Shun-Fa Yang, Cheng-Chia Yu, Chin-Yin Lin, Shih-Han Huang, Shu-Chen Chu, Yih-Shou Hsieh
Epithelial-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...
April 3, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28367639/noralashinol-b-a-norlignan-with-cytotoxicity-from-stem-barks-of-syringa-pinnatifolia
#20
Rui-Fei Zhang, Xiao Feng, Guo-Zhu Su, Xu Yin, Xin-Yao Yang, Yun-Fang Zhao, Wei-Feng Li, Peng-Fei Tu, Xing-Yun Chai
One new norlignan, noralashinol B (1), and one new natural product, proposed noralashinol C (2), were isolated in a continuous phytochemical investigation on the stem barks of Syringa pinnatifolia. Their structures were elucidated based on the analysis of spectroscopic data, including mass spectrometry and 1D and 2D NMR spectroscopies, and the absolute configuration was determined by experimental and calculated electronic circular dichroism. Compound 1 showed a weak cytotoxicity against HepG2 hepatic cancer cells with its IC50 value of 31...
April 2017: Journal of Asian Natural Products Research
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