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Cancer natural medicine

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https://www.readbyqxmd.com/read/27912878/selecting-optimum-protein-nano-carriers-for-natural-polyphenols-using-chemoinformatics-tools
#1
AbdelKader A Metwally, Sherweit H El-Ahmady, Rania M Hathout
BACKGROUND: The normal fate of any natural product with a therapeutic potential is to be formulated into an effective medicine. However, the conventional methods of selecting the suitable formulations or carriers based on the formulator experiences, trials and errors as well as materials availability do not usually yield the optimal results. HYPOTHESIS: We hypothesize the possibility of the virtual optimum selection of a protein carrier for two polyphenolic compounds widely investigated for their chemopreventive effects; resveratrol and curcumin using a combination of some chemoinformatics tools...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27906147/biogenic-synthesis-of-silver-nanoparticles-from-cassia-fistula-linn-in-vitro-assessment-of-their-antioxidant-antimicrobial-and-cytotoxic-activities
#2
Yugal Kishore Mohanta, Sujogya Kumar Panda, Kunal Biswas, Abiral Tamang, Jaya Bandyopadhyay, Debashis De, Dambarudhar Mohanta, Akshaya Kumar Bastia
The present study reports on biogenic-synthesised silver nanoparticles (AgNPs) derived by treating Ag ions with an extract of Cassia fistula leaf, a popular Indian medicinal plant found in natural habitation. The progress of biogenic synthesis was monitored time to time using a ultraviolet-visible spectroscopy. The effect of phytochemicals present in C. fistula including flavonoids, tannins, phenolic compounds and alkaloids on the homogeneous growth of AgNPs was investigated by Fourier-transform infrared spectroscopy...
December 2016: IET Nanobiotechnology
https://www.readbyqxmd.com/read/27905920/synergistic-effects-and-related-bioactive-mechanism-of-potentilla-fruticosa-l-leaves-combined-with-ginkgo-biloba-extracts-studied-with-microbial-test-system-mts
#3
Ze-Hua Liu, Dong-Mei Wang, Su-Fang Fan, Deng-Wu Li, Zi-Wen Luo
BACKGROUND: Potentilla fruticosa, also called "Jinlaomei" and "Gesanghua", is widely used as folk herbs in traditional Tibetan medicine in China to treat inflammations, wounds, certain forms of cancer, diarrhoea, diabetes and other ailments. Previous research found P. fruticosa leaf extract (C-3) combined with Ginkgo biloba extracts (EGb) showed obvious synergistic effects in a variety of oxidation systems. The aim of the present study was to further confirm the synergy of P. fruticosa combined with EGb viewed from physiological bioavailability and explore the related bioactive mechanism behind the synergism...
December 1, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27895646/manufacturing-natural-killer-cells-as-medicinal-products
#4
REVIEW
Christian Chabannon, Bechara Mfarrej, Sophie Guia, Sophie Ugolini, Raynier Devillier, Didier Blaise, Eric Vivier, Boris Calmels
Natural Killer (NK) cells are innate lymphoid cells (ILC) with cytotoxic and regulatory properties. Their functions are tightly regulated by an array of inhibitory and activating receptors, and their mechanisms of activation strongly differ from antigen recognition in the context of human leukocyte antigen presentation as needed for T-cell activation. NK cells thus offer unique opportunities for new and improved therapeutic manipulation, either in vivo or in vitro, in a variety of human diseases, including cancers...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27882308/prognostic-impact-of-autophagy-biomarkers-for-cutaneous-melanoma
#5
REVIEW
Diana Y L Tang, Robert A Ellis, Penny E Lovat
Prognosis and survival for malignant melanoma is highly dependent on early diagnosis and treatment. While the American Joint Committee on Cancer (AJCC) criterion provides a means of staging melanomas and guiding treatment approaches, it is unable to identify the risk of disease progression of early stage tumors or provide reliable stratification for novel adjuvant therapies. The demand for credible prognostic/companion biomarkers able to identify high-risk melanoma subgroups as well as guide more effective personalized/precision-based therapy is therefore of paramount importance...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27882198/design-synthesis-and-cytotoxic-evaluation-of-novel-tubulysin-analogues-as-adc-payloads
#6
Carolyn A Leverett, Sai Chetan K Sukuru, Beth C Vetelino, Sylvia Musto, Kevin Parris, Jayvardhan Pandit, Frank Loganzo, Alison H Varghese, Guoyun Bai, Bin Liu, Dingguo Liu, Sarah Hudson, Venkata Ramana Doppalapudi, Joseph Stock, Christopher J O'Donnell, Chakrapani Subramanyam
The tubulysin class of natural products has attracted much attention from the medicinal chemistry community due to its potent cytotoxicity against a wide range of human cancer cell lines, including significant activity in multidrug-resistant carcinoma models. As a result of their potency, the tubulysins have become an important tool for use in targeted therapy, being widely pursued as payloads in the development of novel small molecule drug conjugates (SMDCs) and antibody-drug conjugates (ADCs). A structure-based and parallel medicinal chemistry approach was applied to the synthesis of novel tubulysin analogues...
November 10, 2016: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27880763/inhibition-of-mtor-induces-a-paused-pluripotent-state
#7
Aydan Bulut-Karslioglu, Steffen Biechele, Hu Jin, Trisha A Macrae, Miroslav Hejna, Marina Gertsenstein, Jun S Song, Miguel Ramalho-Santos
Cultured pluripotent stem cells are a cornerstone of regenerative medicine owing to their ability to give rise to all cell types of the body. Although pluripotent stem cells can be propagated indefinitely in vitro, pluripotency is paradoxically a transient state in vivo, lasting 2-3 days around the time of blastocyst implantation. The exception to this rule is embryonic diapause, a reversible state of suspended development triggered by unfavourable conditions. Diapause is a physiological reproductive strategy widely employed across the animal kingdom, including in mammals, but its regulation remains poorly understood...
December 1, 2016: Nature
https://www.readbyqxmd.com/read/27878246/luteolin-protects-mice-from-severe-acute-pancreatitis-by-exerting-ho-1-mediated-anti-inflammatory-and-antioxidant-effects
#8
Jie Xiong, Kezhou Wang, Chunxiao Yuan, Rong Xing, Jianbo Ni, Guoyong Hu, Fengling Chen, Xingpeng Wang
Reseda odorata L. has long been used in traditional Asian medicine for the treatment of diseases associated with oxidative injury and acute inflammation, such as endotoxemia, acute lung injury, acute myocardial infarction and hepatitis. Luteolin, the main component of Reseda odorata L., which is also widely found in many natural herbs and vege-tables, has been shown to induce heme oxygenase-1 (HO-1) expression to exert anti-inflammatory and antioxidant effects. In this study, we aimed to examine the effects of luteolin on mice with severe acute pancreatitis (SAP), and to explore the underlying mechanisms...
November 22, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27876336/inhibition-of-protein-glycation-antioxidant-and-antiproliferative-activities-of-carpobrotus-edulis-extracts
#9
Jawhar Hafsa, Khaoula Mkadmini Hammi, Med Raâfet Ben Khedher, Med Ali Smach, Bassem Charfeddine, Khalifa Limem, Hatem Majdoub
Carpobrotus edulis is an important South African medicinal plants used as a food and therapeutic agent in traditional medicine. The aim of this study was to determine the phytochemical content, antioxidant, antiglycation and cytotoxic effect against Human Colon Cancer Cell Line (HCT-116) of aqueous and ethanol-water (1:1v/v) extracts of Carpobrotus edulis.The content of total phenolics and flavonoids in aqueous and ethanol-water extract were 151.99μg and 66.35μg gallic acid equivalents/mg of dry extract, and 38...
November 19, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27871904/steroidogenic-effect-of-erxian-decoction-for-relieving-menopause-via-the-p-akt-pkb-pathway-in-vitro-and-in-vivo
#10
Shi Wei Wang, Ho Pan Cheung, Yao Tong, Jia Lu, Tzi Bun Ng, Yan Bo Zhang, Zhang Jin Zhang, Kai Fai Lee, Jenny Ka Wing Lam, Stephen Cho Wing Sze
ETHNOPHARMACOLOGICAL RELEVANCE: Erxian decoction (EXD), an empirical Chinese medicine formula, is effectively used in the clinical treatment of menopause-related symptoms in China. Previous data from our group show that EXD has steroidogenic effect in natural menopausal Sprague-Dawley-rats (SD-rats) as an animal model of menopause. However, the mechanistic studies on steroidogenic effects of EXD are still inadequate. Hence, the mechanisms of steroidogenic effects of EXD were studied in vitro and in vivo in this study...
November 18, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27868087/diabetic-wound-healing-and-activation-of-nrf2-by-herbal-medicine
#11
Donald R Senger, Shugeng Cao
Nrf2 defense is a very important cellular mechanism to control oxidative stress, which is implicated in wound healing. Nrf2 can induce many cytoprotective genes, including HO-1, NQO1 and G6PD. Among many natural products that have been reported as Nrf2 activators, sulforaphane and curcumin have been studied more widely than any others, and both are in clinical trials for non-cancerous disorders. Recently, we reported 4-ethyl catechol and 4-vinyl catechol as Nrf2 co-factors that can induce Nrf2 as potently as sulforaphane and curcumin...
2016: Journal of Nature and Science
https://www.readbyqxmd.com/read/27867044/mitochondrial-dysfunction-in-cancer-chemoprevention-by-phytochemicals-from-dietary-and-medicinal-plants
#12
REVIEW
Anuradha Sehrawat, Ruchi Roy, Subrata K Pore, Eun-Ryeong Hahm, Suman K Samanta, Krishna B Singh, Su-Hyeong Kim, Kamayani Singh, Shivendra V Singh
Cancer chemoprevention, a scientific term coined by Dr. Sporn in the late seventies, implies use of natural or synthetic chemicals to block, delay or reverse carcinogenesis. Phytochemicals derived from edible and medicinal plants have been studied rather extensively for cancer chemoprevention using preclinical models in the past few decades. Nevertheless, some of these agents (e.g., isothiocyanates from cruciferous vegetables like broccoli and watercress) have already entered into clinical investigations. Examples of widely studied and highly promising phytochemicals from edible and medicinal plants include cruciferous vegetables constituents (phenethyl isothiocyanate, benzyl isothiocyanate, and sulforaphane), withaferin A (WA) derived from a medicinal plant (Withania somnifera) used heavily in Asia, and an oriental medicine plant component honokiol (HNK)...
November 17, 2016: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/27858864/can-aidi-injection-restore-cellular-immunity-and-improve-clinical-efficacy-in-non-small-cell-lung-cancer-patients-treated-with-platinum-based-chemotherapy-a-meta-analysis-of-17-randomized-controlled-trials-following-the-prisma-guidelines
#13
Zheng Xiao, Chengqiong Wang, Yongping Sun, Nana Li, Jing Li, Ling Chen, Xingsheng Yao, Jie Ding, Hu Ma
BACKGROUND: Aidi injection is an adjuvant chemotherapy drug commonly used in China. Can Aidi injection restore the cellular immunity and improve the clinical efficacy in non-small-cell lung cancer (NSCLC) patients treated with platinum-based chemotherapy? There is a lack of strong evidence to prove it. To further reveal it, we systematically evaluated all related studies. We collected all studies about the clinical efficacy and cellular immunity of Aidi injection plus platinum-based chemotherapy for NSCLC in Medline, Embase, Web of Science, China national knowledge infrastructure database (CNKI), Chinese Scientific Journals Full-Text Database (VIP), Wanfang, China biological medicine database (CBM) (established to June 2015), Cochrane Central Register of Controlled Trials (CCRCT) (June 2015), Chinese clinical trial registry, and US-clinical trials (June 2015)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858165/nmr-study-of-the-effects-of-some-bleomycin-c-termini-on-the-structure-of-a-dna-hairpin-with-the-5-gc-3-binding-site
#14
Teresa E Lehmann, Sally A Murray, Azure D Ingersoll, Teresa M Reilly, Shelby E Follett, Kevin E Macartney, Mark H Harpster
The antibiotics known as bleomycins constitute a family of natural products clinically employed for the treatment of a wide spectrum of cancers. The drug acts as an antitumor agent by virtue of the ability of a metal complex of the antibiotic to cleave DNA. Bleomycins are differentiated by their C-terminal regions. Previous structural studies involving metal-bleomycin-DNA triads have allowed the identification of the bithiazole-(C-terminus substituent) segment in this molecule as the one that most closely interacts with DNA...
November 17, 2016: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/27853354/development-of-novel-her2-inhibitors-against-gastric-cancer-derived-from-flavonoid-source-of-syzygium-alternifolium-through-molecular-dynamics-and-pharmacophore-based-screening
#15
Tirumalasetty Muni Chandra Babu, Aluru Rammohan, Vijaya Bhaskar Baki, Savita Devi, Duvvuru Gunasekar, Wudayagiri Rajendra
Continuous usage of synthetic chemotherapeutic drugs causes adverse effects, which prompted for the development of alternative therapeutics for gastric cancer from natural source. This study was carried out with a specific aim to screen gastroprotective compounds from the fruits of Syzygium alternifolium (Myrtaceae). Three flavonoids, namely, 1) 5-hydroxy-7,4'-dimethoxy-6,8-di-C-methylflavone, 2) kaempferol-3-O-β-d-glucopyranoside, and 3) kaempferol-3-O-α-l-rhamnopyranoside were isolated from the above medicinal plant by employing silica gel column chromatography and are characterized by NMR techniques...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27844243/analysis-of-chemical-constituents-antimicrobial-and-anticancer-activities-of-dichloromethane-extracts-of-sordariomycetes-sp-endophytic-fungi-isolated-from-strobilanthes-crispus
#16
Elaine Chin Jinfeng, Mohamed Ikhtifar Mohamad Rafi, Khoo Chai Hoon, Ho Kok Lian, Cheah Yoke Kqueen
Plants are primary source of natural product drugs. However, with every new bioactive molecule reported from a plant source, there follows reports of endangered status or even extinction of a medicinally important plant due to over-harvesting. Hence, the attention turned towards fungi namely the endophytes, which reside within medicinally important plants and thus may have acquired their medicinal properties. Strobilanthes crispus is a traditional medicinal plant which has been used traditionally to treat kidney stones, diabetes, hypertension and cancer as well as having antimicrobial activities...
January 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27843618/cancer-genome-highlights-of-a-nature-medicine-perspective
#17
Emile Voest
No abstract text is available yet for this article.
2016: ESMO Open
https://www.readbyqxmd.com/read/27836799/cucurbitacin-i-induces-hypertrophy-in-h9c2-cardiomyoblasts-through-activation-of-autophagy-via-mek-erk1-2-signaling-pathway
#18
Yao Wu, Hongying Chen, Ruli Li, Xiaoxiao Wang, He Li, Juanjuan Xin, Zhiqiang Liu, Sisi Wu, Wei Jiang, Ling Zhu
Cucurbitacin-I, a natural triterpenoids initially identified in medicinal plants, shows a potent anticancer effect on a variety of cancer cell types. Nevertheless, the cardiotoxicity of cucurbitacin-I has not heretofore been reported. In this study, the mechanisms of cucurbitacin-I-induced cardiotoxicity were examined by investigating the role of MAPK-autophagy-dependent pathways. After being treated with 0.1-0.3μM cucurbitacin-I for 48h, H9c2 cells showed a gradual decrease in the cell viabilities, a gradual increase in cell size, and mRNA expression of ANP and BNP (cardiac hypertrophic markers)...
November 9, 2016: Toxicology Letters
https://www.readbyqxmd.com/read/27833586/estrogen-receptor-%C3%AE-in-melanoma-from-molecular-insights-to-potential-clinical-utility
#19
REVIEW
Monica Marzagalli, Marina Montagnani Marelli, Lavinia Casati, Fabrizio Fontana, Roberta Manuela Moretti, Patrizia Limonta
Cutaneous melanoma is an aggressive tumor; its incidence has been reported to increase fast in the past decades. Melanoma is a heterogeneous tumor, with most patients harboring mutations in the BRAF or NRAS oncogenes, leading to the overactivation of the MAPK/ERK and PI3K/Akt pathways. The current therapeutic approaches are based on therapies targeting mutated BRAF and the downstream pathway, and on monoclonal antibodies against the immune checkpoint blockade. However, treatment resistance and side effects are common events of these therapeutic strategies...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27831501/characterizing-cd137-upregulation-on-nk-cells-in-patients-receiving-monoclonal-antibody-therapy
#20
A Makkouk, V Sundaram, C Chester, S Chang, A D Colevas, J B Sunwoo, H Maecker, M Desai, H E Kohrt
BACKGROUND: In the era of personalized cancer medicine, identifying techniques for effectively matching patients to efficacious treatments is a critical step in the treatment process. The advent of anti-cancer immunotherapies necessitates novel approaches to biomarker identification beyond traditional genomic profiling. One promising approach is incorporation of nomograms into treatment decisions. Nomograms are prediction tools, based on statistical modeling, designed to predict treatment outcomes...
November 9, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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