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Cancer AND phytochemicals

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https://www.readbyqxmd.com/read/28335288/biosynthesis-of-silver-nanoparticles-using-taxus-yunnanensis-callus-and-their-antibacterial-activity-and-cytotoxicity-in-human-cancer-cells
#1
Qian Hua Xia, Yan Jun Ma, Jian Wen Wang
Plant constituents could act as chelating/reducing or capping agents for synthesis of silver nanoparticles (AgNPs). The green synthesis of AgNPs has been considered as an environmental friendly and cost-effective alternative to other fabrication methods. The present work described the biosynthesis of AgNPs using callus extracts from Taxus yunnanensis and evaluated their antibacterial activities in vitro and potential cytotoxicity in cancer cells. Callus extracts were able to reduce silver nitrate at 1 mM in 10 min...
September 1, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334682/phytochemical-induced-nucleolar-stress-results-in-the-inhibition-of-breast-cancer-cell-proliferation
#2
Anna Lewinska, Diana Bednarz, Jagoda Adamczyk-Grochala, Maciej Wnuk
The nucleolus is a stress sensor and compromised nucleolar activity may be considered as an attractive anticancer strategy. In the present study, the effects of three plant-derived natural compounds, i.e., sulforaphane (SFN), ursolic acid (UA) and betulinic acid (BA) on nucleolar state were investigated in breast cancer cell lines of different receptor status, namely MCF-7, MDA-MB-231 and SK-BR-3 cells. Cytostatic action of phytochemicals against breast cancer cells was observed at low micromolar concentration window (5-20µM) and mediated by elevated p21 levels, and cell proliferation of SFN-, UA- and BA-treated normal human mammary epithelial cells (HMEC) was unaffected...
March 14, 2017: Redox Biology
https://www.readbyqxmd.com/read/28330247/production-of-glucosinolates-phenolic-compounds-and-associated-gene-expression-profiles-of-hairy-root-cultures-in-turnip-brassica-rapa-ssp-rapa
#3
Ill-Min Chung, Kaliyaperumal Rekha, Govindasamy Rajakumar, Muthu Thiruvengadam
Turnip (Brassica rapa ssp. rapa) is an important vegetable crop producing glucosinolates (GSLs) and phenolic compounds. The GSLs, phenolic compound contents and transcript levels in hairy root cultures, as well as their antioxidant, antimicrobial and anticancer activity were studied in turnip. Transgenic hairy root lines were confirmed by polymerase chain reaction (PCR) and reverse transcription-PCR. GSLs levels (glucoallysin, glucobrassicanapin, gluconasturtiin, glucobrassicin, 4-methoxyglucobrassicin, neoglucobrassicin and 4-hydroxyglucobrassicin) and their gene expression levels (BrMYB28, BrMYB29, BrMYB34, BrMYB51, BrMYB122, CYP79 and CYP83) significantly increased in hairy roots compared with that in non-transformed roots...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28323490/triterpenoid-acids-as-important-antiproliferative-constituents-of-european-elderberry-fruits
#4
Michał Gleńsk, Elżbieta Czapińska, Marta Woźniak, Ireneusz Ceremuga, Maciej Włodarczyk, Grzegorz Terlecki, Piotr Ziółkowski, Ewa Seweryn
In Europe, both the fruits and flowers of Sambucus nigra L. have been used against cold, as well as laxative, diaphoretic, and diuretic remedies. There are also a number of commercially available food products that contain elderberry juice, puréed or dried elderberries. Recent comprehensive literature data on pharmacology and chemistry of Sambuci fructus have encouraged us to screen extracts with different polarities from this plant material against cancer cell lines. The cytotoxic activity of the ethyl acetate and aqueous acetone extracts from elderberries as well as detected triterpenoids on human colon adenocarcinoma cell line (LoVo) and human breast cancer cell line (MCF-7) was investigated by sulforhodamine B assay...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28315822/protective-effect-of-zerumbone-reduces-lipopolysaccharide-induced-acute-lung-injury-via-antioxidative-enzymes-and-nrf2-ho-1-pathway
#5
Wai-Shing Leung, Ming-Ling Yang, Shiuan-Shinn Lee, Chi-Wen Kuo, Yung-Chyuan Ho, Rosa Huang-Liu, Hui-Wen Lin, Yu-Hsiang Kuan
Acute lung injury (ALI) is a serious disease with high morbidity and mortality rate. Although there are effective strategies for treatment of ALI; a widely accepted specific pharmacotherapy has not yet established. Zerumbone, the major active phytochemical compound from Zingiber zerumbet Smith, exhibits various beneficial biological and pharmacological activities, such as antioxidation, anti-inflammation, immunomodulation, and anti-cancer. We aimed to study the potential protective effects and mechanisms of zerumbone in mouse model of lipopolysaccharide (LPS)-induced ALI...
March 15, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28314481/benzophenones-and-xanthone-derivatives-from-garcinia-schomburgkiana-induced-p-glycoprotein-overexpression-in-human-colorectal-caco-2-cells-via-oxidative-stress-mediated-mechanisms
#6
Cherdsak Boonyong, Chutichot Pattamadilok, Rutt Suttisri, Suree Jianmongkol
BACKGROUND: Up-regulation of P-gp is an adaptive survival mechanism of cancer cells from chemotherapy. Three new phytochemicals including two benzophenones, guttiferone K (GK) and oblongifolin C (OC), and a xanthone, isojacaruebin (ISO), are potential anti-cancer agents. However, the capability of these compounds to increase multidrug-resistance (MDR) through P-gp up-regulation in cancer cells has not been reported. PURPOSE: This study was to investigate the effects of GK, OC and ISO on P-gp up-regulation in colorectal adenocarcinoma cells (Caco-2 cells)...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28300756/oleanolic-acid-alters-multiple-cell-signaling-pathways-implication-in-cancer-prevention-and-therapy
#7
REVIEW
Lovro Žiberna, Dunja Šamec, Andrei Mocan, Seyed Fazel Nabavi, Anupam Bishayee, Ammad Ahmad Farooqi, Antoni Sureda, Seyed Mohammad Nabavi
Nowadays, much attention has been paid to diet and dietary supplements as a cost-effective therapeutic strategy for prevention and treatment of a myriad of chronic and degenerative diseases. Rapidly accumulating scientific evidence achieved through high-throughput technologies has greatly expanded the understanding about the multifaceted nature of cancer. Increasingly, it is being realized that deregulation of spatio-temporally controlled intracellular signaling cascades plays a contributory role in the onset and progression of cancer...
March 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28298074/evaluation-of-growth-inhibitory-response-of-resveratrol-and-salinomycin-combinations-against-triple-negative-breast-cancer-cells
#8
Girish Rai, Shankar Suman, Sanjay Mishra, Yogeshwer Shukla
Resveratrol (RSVL) a dietary phytochemical showed to enhance the efficacy of chemotherapeutic drugs. Recently, Salinomycin (SAL) has gained importance as cancer therapeutic value for breast cancer (BC), however, its superfluxious toxicity delimits the utility. Taking the advantage of RSVL, the therapeutic efficacy of RSVL and SAL combination was studied in vitro and in vivo system. Firstly, the synergistic combination dose of RSVL and SAL was calculated and further, the efficacy was examined by wound healing, and Western blots analysis...
March 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28294059/phytochemical-screening-alpha-glucosidase-inhibition-antibacterial-and-antioxidant-potential-of-ajuga-bracteosa-extracts
#9
Kokab Hafeez, Saiqa Andleeb, Tahseen Ghousa, Kalsoom Akhter
BACKGROUND: Ajuga bracteosa, a medicinal herb, used by local community to cure a number of diseases such as inflammation, jaundice bronchial asthma, cancer and diabetes. OBJECTIVES: The aim of present work was to evaluate the antioxidant potential, in vitro antidiabetic and antimicrobial effects of A. bracteosa. METHODS: n-hexane, ethyl acetate, chloroform, acetone, methanol and aqueous extracts of Ajuga bracteosa roots, were prepared via maceration...
March 12, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28292742/fatty-acid-synthesis-intermediates-represent-novel-noninvasive-biomarkers-of-prostate-cancer-chemoprevention-by-phenethyl-isothiocyanate
#10
Krishna B Singh, Shivendra V Singh
Increased de novo synthesis of fatty acids is a distinctive feature of prostate cancer, which continues to be a leading cause of cancer-related deaths among American men. Therefore, inhibition of de novo fatty acid synthesis represents an attractive strategy for chemoprevention of prostate cancer. We have shown previously that dietary feeding of phenethyl isothiocyanate (PEITC), a phytochemical derived from edible cruciferous vegetables such as watercress, inhibits incidence and burden of poorly-differentiated prostate cancer in Transgenic Adenocarcinoma of Mouse Prostate (TRAMP) model...
March 14, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28292015/evaluation-of-antioxidant-and-anticancer-activity-of-copper-oxide-nanoparticles-synthesized-using-medicinally-important-plant-extracts
#11
Dilaveez Rehana, D Mahendiran, R Senthil Kumar, A Kalilur Rahiman
Copper oxide (CuO) nanoparticles were synthesized by green chemistry approach using different plant extracts obtained from the leaves of Azadirachta indica, Hibiscus rosa-sinensis, Murraya koenigii, Moringa oleifera and Tamarindus indica. In order to compare their efficiency, the same copper oxide nanoparticles was also synthesized by chemical method. Phytochemical screening of the leaf extracts showed the presence of carbohydrates, flavonoids, glycosides, phenolic compounds, saponins, tannins, proteins and amino acids...
March 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28287477/chemical-composition-and-biological-activity-of-allium-cepa-l-and-allium-%C3%A3-cornutum-clementi-ex-visiani-1842-methanolic-extracts
#12
Željana Fredotović, Matilda Šprung, Barbara Soldo, Ivica Ljubenkov, Irena Budić-Leto, Tea Bilušić, Vedrana Čikeš-Čulić, Jasna Puizina
Here, we report a comparative study of the phytochemical profile and the biological activity of two onion extracts, namely Allium cepa L. and Allium × cornutum (Clementi ex Visiani 1842), members of the family Amaryllidaceae. The identification of flavonoids and anthocyanins, and their individual quantities, was determined by high-performance liquid chromatography (HPLC). The potency of both extracts to scavenge free radicals was determined by the DPPH (2,2'-diphenyl-1-picrylhydrazyl) radical-scavenging activity and oxygen radical absorbance capacity (ORAC) methods...
March 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28287469/strawberry-tree-honey-induces-growth-inhibition-of-human-colon-cancer-cells-and-increases-ros-generation-a-comparison-with-manuka-honey
#13
Sadia Afrin, Tamara Y Forbes-Hernandez, Massimiliano Gasparrini, Stefano Bompadre, José L Quiles, Gavino Sanna, Nadia Spano, Francesca Giampieri, Maurizio Battino
Honey is a natural product known to modulate several biological activities including cancer. The aim of the present study was to examine the phytochemical content and the antioxidant activity of Strawberry tree (Arbutus unedo) honey (STH) and its cytotoxic properties against human colon adenocarcinoma (HCT-116) and metastatic (LoVo) cell lines in comparison with Manuka (Leptospermum scoparium) honey (MH). Several unifloral STH and MH were analyzed for their phenolic, flavonoid, amino acid and protein contents, as well as their radical scavenging activities...
March 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28286531/a-review-of-the-potential-of-phytochemicals-from-prunus-africana-hook-f-kalkman-stem-bark-for-chemoprevention-and-chemotherapy-of-prostate-cancer
#14
REVIEW
Richard Komakech, Youngmin Kang, Jun-Hwan Lee, Francis Omujal
Prostate cancer remains one of the major causes of death worldwide. In view of the limited treatment options for patients with prostate cancer, preventive and treatment approaches based on natural compounds can play an integral role in tackling this disease. Recent evidence supports the beneficial effects of plant-derived phytochemicals as chemopreventive and chemotherapeutic agents for various cancers, including prostate cancer. Prunus africana has been used for generations in African traditional medicine to treat prostate cancer...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28286519/erbb-proteins-as-molecular-target-of-dietary-phytochemicals-in-malignant-diseases
#15
REVIEW
Alexandru Filippi, Oana-Alina Ciolac, Constanța Ganea, Maria-Magdalena Mocanu
ErbB proteins overexpression, in both normal and mutated forms, is associated with invasive forms of cancer prone to metastasis and with stronger antiapoptotic mechanisms and therefore more challenging to treat. Downstream effectors of ErbB receptors mediating these phenotypic traits include MAPK, STAT, and PI3K/AKT/mTOR pathways. Various phytochemical compounds were studied for their large number of biological effects including anticancer activity. Among these compounds, epigallocatechin-3-gallate (EGCG), the main catechin from green tea leaves, and curcumin, component of the curry powder, constituted the object of numerous studies...
2017: Journal of Oncology
https://www.readbyqxmd.com/read/28282293/preliminary-phytochemical-analysis-and-evaluation-of-antioxidant-cytotoxic-and-inhibition-of-lipopolysaccaride-induced-nos-inos-expression-in-balb-c-mice-liver-by-ziziphus-oenoplia-mill-fruit
#16
Ramaraj Thirugnanasampandan, Gunasekar Ramya, Gunasekaran Bhuvaneswari, Srinivasan Aravindh, Suresh Vaishnavi, Madhusudhanan Gogulramnath
BACKGROUND: Ziziphus oenoplia Mill. is an ethnomedicinal plant and its fruit has been traditionally used by Puliar tribes of Anamalai Hills, Tamil Nadu, India to treat various ailments. Phytochemical analysis, antioxidant, cytotoxic and inducible nitric oxide synthase (iNOS) gene downregulation activities of Z. oenoplia fruit (ZOF) were studied. METHODS: To explore bioactive compounds present in the ripened fruits, high-performance thin-layer chromatography (HPTLC) and gas chromatography/mass spectrometry (GC-MS) analysis were done...
March 10, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28278665/bioactive-phenylpropanoid-analogues-from-piper-betle-l-var-haldia-leaves
#17
Akhtar Atiya, Barij Nayan Sinha, Uma Ranjan Lal
Phytochemical analyses of the chloroform extract of Piper betle L. var. birkoli, Piperaceae, leaves led to the isolation of two new phenylpropanoid analogues: bis-chavicol dodecanoyl ester (2) and bis-hydroxychavicol dodecanoyl ester (3), along with one known compound: allyl-3-methoxy-4-hydroxybenzene (1) on the basis of spectroscopic data 1D ((1)H and (13)C) and 2D ((1)H-(1)H COSY and HMBC) NMR, as well as ESI-MS, FT-IR, HR-ESI-MS and LC-ESI-MS. Compound 2 and 3 exhibited excellent antioxidant DPPH radical scavenging activity with IC50 values of 12...
February 15, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278660/a-nor-diterpene-from-salvia-sahendica-leaves
#18
Sahar Mofidi Tabatabaei, Peyman Salehi, Mahdi Moridi Farimani, Markus Neuburger, Maria De Mieri, Matthias Hamburger, Samad Nejad-Ebrahimi
Phytochemical investigation of n-hexane extract of Salvia sahendica by normal phase column chromatography resulted in the isolation of six compounds. Structures were established by 1D and 2D NMR spectroscopy, and HRMS, as a new norditerpene 1, and known terpenoids, sclareol (2), oleanolic acid (3), β-sitosterol (4), salvigenin (5) and 3α-hydroxy-11α,12α-epoxyoleanan-28,13β-olide (6). The absolute configuration of 1 was confirmed by a combination of X-ray single crystal analysis and electronic circular dichroism spectroscopy...
February 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278627/a-new-eremophilane-glycoside-from-the-fruits-of-physalis-pubescens-and-its-cytotoxic-activity
#19
Guiyang Xia, Yiyuan Huang, Meijuan Xia, Liqing Wang, Ning Kang, Liqin Ding, Lixia Chen, Feng Qiu
Physalis pubescens L. has been used as a traditional folk medicine in China. Comprehensive studies aimed at identifying the bioactive constituents are still lacking. In the course of searching bioactive secondary metabolites from P. pubescens L., phytochemical investigation of the fruits of P. pubescens L. led to the isolation of one new eremophilane glycoside, 1β,3α-dihydroxy-7α-eremophila-911-dien-3-O-[α-L-arabinopyranosyl-(l→6)]-β-D-glucopyranoside (1), and six known glycosides (2-7). Their structures were established via extensive spectroscopic data including 1D and 2D NMR and HRESIMS...
March 2, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28278576/anticancer-activity-of-sasa-borealis-leaf-extract-mediated-gold-nanoparticles
#20
Maheshkumar Prakash Patil, Xing Jin, Natasha Chantal Simeon, Jaymee Palma, Daniel Kim, Daniel Ngabire, Nan-Hee Kim, Naresh Hiralal Tarte, Gun-Do Kim
Advancements in metal nanoparticle synthesis using plant extracts and their anticancer activity have received significant attention in recent years. The green approach for the synthesis of gold nanoparticles (AuNPs) using leaf extract of Sasa borealis is reported in this study. Synthesis of AuNPs was performed at 50 °C, and nanoparticle formation was observed after 20 min incubation. AuNPs formation was confirmed by the UV-visible spectrum peak at 542 nm. The synthesized AuNPs were oval, spherical with sizes around 10-30 nm observed using the transmission electron microscope...
February 28, 2017: Artificial Cells, Nanomedicine, and Biotechnology
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