ANTICANCER EFFECT OF UVARIA GENUS

2014 ◽  
pp. 98-101
Author(s):  
Thi Bich Hien Le ◽  
Viet Duc Ho ◽  
Thi Hoai Nguyen

Nowadays, cancer treatment has been a big challenge to healthcare systems. Most of clinical anti-cancer therapies are toxic and cause adverse effects to human body. Therefore, current trend in science is seeking and screening of natural compounds which possess antineoplastic activities to utilize in treatment. Uvaria L. - Annonaceae includes approximately 175 species spreading over tropical areas of Asia, Australia, Africa and America. Studies on chemical compositions and pharmacological effects of Uvaria showed that several compound classes in this genus such as alkaloid, flavonoid, cyclohexen derivaties, acetogenin, steroid, terpenoid, etc. indicate considerable biological activities, for example anti-tumor, anti-cancer, antibacterial, antifungal, antioxidant, etc. Specifically, anti-cancer activity of fractions of extract and pure isolated compounds stands out for cytotoxicity against many cancer cell lines. This study provides an overview of anti-cancer activity of Uvaria and suggests a potential for further studies on seeking and developing novel anti-cancer compounds. Key words: Anti-cancer, Uvaria.

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1138
Author(s):  
Zhe Zhang ◽  
Jiayan Shi ◽  
Edouard C. Nice ◽  
Canhua Huang ◽  
Zheng Shi

Flavonoids are considered as pleiotropic, safe, and readily obtainable molecules. A large number of recent studies have proposed that flavonoids have potential in the treatment of tumors by the modulation of autophagy. In many cases, flavonoids suppress cancer by stimulating excessive autophagy or impairing autophagy flux especially in apoptosis-resistant cancer cells. However, the anti-cancer activity of flavonoids may be attenuated due to the simultaneous induction of protective autophagy. Notably, flavonoids-triggered protective autophagy is becoming a trend for preventing cancer in the clinical setting or for protecting patients from conventional therapeutic side effects in normal tissues. In this review, focusing on the underlying autophagic mechanisms of flavonoids, we hope to provide a new perspective for clinical application of flavonoids in cancer therapy. In addition, we highlight new research ideas for the development of new dosage forms of flavonoids to improve their various pharmacological effects, establishing flavonoids as ideal candidates for cancer prevention and therapy in the clinic.


Biomedicines ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 96 ◽  
Author(s):  
Subramani Paranthaman Balasubramani ◽  
Mohammad Atikur Rahman ◽  
Sheikh Mehboob Basha

Muscadine grape is rich in stilbenes, which include resveratrol, piceid, viniferin, pterostilbene, etc. Resveratrol has been extensively studied for its biological activities; however, the synergistic effect of stilbene compounds in berry extracts is poorly understood. The aim of this study was to evaluate the anti-cancer activity of stilbene-rich muscadine berry extract and pure resveratrol. Stilbenes were extracted from ripened berries of muscadine grape cultivars, Pineapple, and Southern Home. HPLC analysis was performed to determine quantity of stilbenes. The extracts were tested for their cytotoxic activity against A549 (lung carcinoma cells), triple negative breast cancer (HCC-1806) and HepG2 (human liver cancer) cells. The stilbene-rich extracts of the muscadine berry extracts showed cytotoxic activity against all of the cells tested. The extracts at 1 μg/mL induced death in 50–80% of cells by 72 h of treatment. About 50 μg/mL of resveratrol was required to induce a similar response in the cells. Further, modulation of genes involved in tumor progression and suppression was significantly (p < 0.0005) higher with the HepG2 cells treated with stilbene-rich berry extracts than the pure resveratrol. This shows that the synergistic activity of stilbenes present in muscadine grape berries have more potent anti-cancer activity than the resveratrol alone.


2021 ◽  
Author(s):  
Natalie Carroll ◽  
Alena Smith ◽  
Brian A. Salvatore ◽  
Elahe Mahdavian

Abstract Background: Fusarochromanone (FC101) is a small molecule with potent anti-cancer activity. It was originally derived from the fungal plant pathogen, Fusarium equiseti, and it has also been synthesized in non-racemic form in our lab. Numerous studies reveal the promising biological activity of FC101, including potent anti-angiogenic and anti-cancer activity. While FC101 is potent as a single drug treatment across many cancer cell lines, current cancer therapies often incorporate a combination of drugs in order to increase efficacy and decrease the development of drug resistance. In this study, we leverage drug combinations and cellular phenotypic screens to address important questions about FC101’s mode of action and its potential synergies as an anti-cancer therapeutic agent in triple negative breast cancer (TNBC).Method: We hypothesized that FC101’s activity against TNBC is similar to the known mTOR inhibitor, everolimus, because FC101 reduces the phosphorylation of two key mTOR substrates, S6K and S6. Since everolimus synergistically enhances the anti-cancer activities of known EGFR inhibitors (erlotinib or lapatinib) in TNBC, we performed analogous studies with FC101. Phenotypic cellular assays helped assess whether FC101 (in both single and combination treatments) acts similarly to everolimus.Results: FC101 outperformed all other single treatments in both cell proliferation and viability assays. Unlike everolimus, however, FC101 brought about a sustained decrease in cell viability in drug washout studies. None of the other drugs were able to maintain comparable effects upon removal of the treatment agents. Although we observed slightly additive effects when the TNBC cells were treated with FC101 and either EGFR inhibitor, those effects were not truly synergistic in the manner displayed with everolimus. Conclusion: Our results rule out direct inhibition of mTOR by FC101 and suggest that FC101 acts through a different mechanism than everolimus. This lays the foundation for the refinement of our hypothesis in order to better understand FC101’s mode of action as a novel anti-cancer agent.


2019 ◽  
Vol 10 (2) ◽  
pp. 912-924 ◽  
Author(s):  
Jia-Hui Nie ◽  
Jian-Xiang Huang ◽  
Qing-Rong Wu ◽  
Xue-Mei Qin ◽  
Zhen-Yu Li

In this study, coat (RKBC) and kernel (RKBK) extracts of red kidney bean were prepared, and their chemical compositions and potential anti-cancer activity against B16-F10 cells were evaluated.


Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2753 ◽  
Author(s):  
Sabrina Esposito ◽  
Alessandro Bianco ◽  
Rosita Russo ◽  
Antimo Di Maro ◽  
Carla Isernia ◽  
...  

A large range of chronic and degenerative diseases can be prevented through the use of food products and food bioactives. This study reports the health benefits and biological activities of the Urtica dioica (U. dioica) edible plant, with particular focus on its cancer chemopreventive potential. Numerous studies have attempted to investigate the most efficient anti-cancer therapy with few side effects and high toxicity on cancer cells to overcome the chemoresistance of cancer cells and the adverse effects of current therapies. In this regard, natural products from edible plants have been assessed as sources of anti-cancer agents. In this article, we review current knowledge from studies that have examined the cytotoxic, anti-tumor and anti-metastatic effects of U. dioica plant on several human cancers. Special attention has been dedicated to the treatment of breast cancer, the most prevalent cancer among women and one of the main causes of death worldwide. The anti-proliferative and apoptotic effects of U. dioica have been demonstrated on different human cancers, investigating the properties of U. dioica at cellular and molecular levels. The potent cytotoxicity and anti-cancer activity of the U. dioica extracts are due to its bioactive natural products content, including polyphenols which reportedly possess anti-oxidant, anti-mutagenic and anti-proliferative properties. The efficacy of this edible plant to prevent or mitigate human cancers has been demonstrated in laboratory conditions as well as in experimental animal models, paving the way to the development of nutraceuticals for new anti-cancer therapies.


2019 ◽  
Vol 6 ◽  
pp. 21-32
Author(s):  
Ewelina Piktel ◽  
Robert Bucki

Constantly increasing morbidity and mortality of cancer, complex immunopathogenesis of tumors and variable development and severity of the disease, enforce a constant search for new therapeutic factors with anti-cancer activity. Despite the constant achievements in anti- -cancer diagnostic and therapeutic methods development, the low specificity and high toxicity of cytostatics, and the multidrug resistance expansion, still remain a considerable health problem. Currently, natural, cationic antimicrobial peptides (AMPs) and their synthetic lipid analogs from the ceragenin group (CSA) are presented as potential antineoplastic compounds. Their special features, including the membrane permeabilizing-based mechanism of action, selectivity towards tumor cells, biocompatibility and the absence of a recorded anti-AMPs resistance mechanism, make cationic antineoplastic peptides an effective alternative to modern cytostatics. Moreover, a compelling number of research confirm the possibility of using magnetic nanoparticles as highly effective and biocompatible drug carriers, ensuring the achievement of a sufficiently high intracellular concentration of drug and thus, increasing its antineoplastic activity. The results obtained so far indicate the possibility of the employment of natural AMPs and their synthetic analogs from ceragenins group in an effective eradication of cancer cells. Nevertheless, further studies aiming to elucidate the safety of proposed nanosystems and focused on the employment of ceragenin-based nanosystems in diagnostic MRI imaging and as hyperthermia inducers are needed and justified.


2017 ◽  
Vol 41 (21) ◽  
pp. 13085-13095 ◽  
Author(s):  
José Marcos da Silveira Carvalho ◽  
Andressa Hellen de Morais Batista ◽  
Nádia Accioly Pinto Nogueira ◽  
Alda Karine Medeiros Holanda ◽  
Jackson Rodrigues de Sousa ◽  
...  

Photorelease of CO and moderate binding to DNA did not seem to be essential features for potent biological activities.


2020 ◽  
Vol 15 (12) ◽  
pp. 1934578X2097423
Author(s):  
Sen Jiang ◽  
Dong-Li Li ◽  
Jie Chen ◽  
Xi Zheng ◽  
Pan-Pan Wu ◽  
...  

Natural products have presented potentiality to improve the outcomes of cancer therapies. Impressic acid (E12-1) and acankoreanogein (E13-1), important activity compounds in Acanthopanax trifoliatus (L.) Merr., show widely biological activities. In this study, we isolated E12-1 and E13-1 from Acanthopanax trifoliatus (L.) Merr., and investigated their improvement effect in gemcitabine (GEM) treatment in Panc-1 cells. The results showed that GEM in combination with E12-1 or E13-1 showed stronger inhibition on the growth and induction of apoptosis in Panc-1 cells compared to GEM, E12-1, or E13-1 alone. GEM in combination with E12-1or E13-1 also strongly inhibited cell migration. Mechanistic investigation showed that GEM in combination with E12-1or E13-1 effectively inhibited the activition of nuclear factor kappa-light-chain-enhancer of activated B cells and Stat 3. Overall, GEM in combination with E12-1 or E13-1 might be an effective strategy for the prevention of prostate cancer.


Author(s):  
Zang Li ◽  
Hao Xu ◽  
Chao Huang ◽  
Cunqin Wang ◽  
Rongbin Wang ◽  
...  

Background: Plants with triterpenoid compounds in nature have various biological activities and are reported in many scientific works of literature. Triterpenoids are compounds that draw the attention of scientists because of their wide source, wide variety, high medicinal value, and anti-tumor properties. However, a lack of approach to understand their chemical structures has limited the fundamental comprehension of these compounds in cancer cell therapy. Objective: To seek anti-cancer activity of the structures of triterpenoid compounds and their derivatives, we summarized a number of plants and their derivatives that are a source of potential novel therapeutic anti-cancer agents. Methods: This work focuses on relevant 1036 patents and references that detail the structure of organic compounds and derivatives for the treatment of tumors. Result: Compared to tetracyclic triterpenoid, pentacyclic triterpenoid has contributed more to improve the autophagic signaling pathways of cancer cells. Conclusion: The heterogenous skeleton structure of triterpenoids impaired the programmed cell death signaling pathway in various cancers


2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Sasadhar Majhi

Abstract Cancer is the uncontrolled growth and development of abnormal cells which is a major cause of death in both advanced and emerging countries. Although currently chemotherapy is most broadly used among an extensive range of anti-cancer therapies, it includes many demerits, such as highly toxic, side-effects, expensive and partial lack of targeting specificity. So the design and synthesis of new molecules that perform specifically on target proteins in tumor cells is a focus of contemporary research. So many researchers aim for new drugs that will be more efficient, more selective, and less toxic. Because of the interesting structures and significant biological profile, naturally occurring acridines and xanthines as well as their analogues have attracted considerable interest in researchers and technologists. Natural and synthetic acridine derivatives form a significant category of heterocycles having nitrogen that is of considerable interest for organic chemists and biological communities due to their attractive anti-cancer activity. Another important class of therapeutic agents with diverse biological properties including cytotoxic effects is xanthine derivatives which are collectively called xanthines (a group of alkaloids). Among many significant molecules based on the structure of the purine, there is a group of natural xanthines, involving theobromine, caffeine, and theophylline and analogues of xanthine display anti-cancer activity. Hence the present chapter wishes to concentrate the attention on the synthesis and anti-cancer activity of acridine and xanthine-based compounds brilliantly.


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