Medicinal Potential of Heterocyclic Compounds from Diverse Natural Sources for the Management of Cancer

2020 ◽  
Vol 20 (11) ◽  
pp. 942-957
Author(s):  
Manjinder Singh ◽  
Pratibha Sharma ◽  
Pankaj Kumar Singh ◽  
Thakur Gurjeet Singh ◽  
Balraj Saini
Keyword(s):  
Natural Products ◽  
Biological Properties ◽  
Chemotherapeutic Agents ◽  
Marine Organisms ◽  
New Era ◽  
Complex Disorders ◽  
Chemical Structures ◽  
Action Mechanisms ◽  
Anti Cancer ◽  
Micro Organisms

Natural products form a significant portion of medicinal agents that are currently used for the management of cancer. All these natural products have unique structures along with diverse action mechanisms with the capacity to interact with different therapeutic targets of several complex disorders. Although plants contribute as a major source of natural products with anti-cancer potential, the marine environment and microbes have also bestowed some substantial chemotherapeutic agents. A few examples of anti-cancer agents of natural origin include vincristine, vinblastine, paclitaxel, camptothecin and topotecan obtained from plants, bryostatins, sarcodictyin and cytarabine from marine organisms and bleomycin and doxorubicin from micro-organisms (dactinomycin, bleomycin and doxorubicin). The incredible diversity in the chemical structures and biological properties of compounds obtained from million species of plants, marine organisms and microorganisms present in nature has commenced a new era of potential therapeutic anti-cancer agents.

scholarly journals Anticancer Agents from Diverse Natural Sources

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Jabeena Khazir ◽  
Darren L. Riley ◽  
Lynne A. Pilcher ◽  
Pieter De-Maayer ◽  
Bilal Ahmad Mir
Keyword(s):  
Clinical Trials ◽  
Natural Products ◽  
Anticancer Agents ◽  
Marine Organisms ◽  
New Drugs ◽  
Human Diseases ◽  
Cancer Drugs ◽  
Natural Sources ◽  
Anti Cancer ◽  
Ancient Times

This review attempts to portray the discovery and development of anticancer agents/drugs from diverse natural sources. Natural molecules from these natural sources including plants, microbes and marine organisms have been the basis of treatment of human diseases since the ancient times. Compounds derived from nature have been important sources of new drugs and also serve as templates for synthetic modification. Many successful anti-cancer drugs currently in use are naturally derived or their analogues and many more are under clinical trials. This review aims to highlight the invaluable role that natural products have played, and continue to play, in the discovery of anticancer agents.

scholarly journals An Overview of Bioactive 1,3-Oxazole-Containing Alkaloids from Marine Organisms

2021 ◽  
Vol 14 (12) ◽  
pp. 1274
Author(s):  
Jinyun Chen ◽  
Sunyan Lv ◽  
Jia Liu ◽  
Yanlei Yu ◽  
Hong Wang ◽  
...  
Keyword(s):  
Nitrogen Atom ◽  
Chemical Synthesis ◽  
Biological Activities ◽  
Structural Features ◽  
Biological Properties ◽  
Therapeutic Agents ◽  
Marine Organisms ◽  
Chemical Structures ◽  
First Time ◽  
Oxazole Derivatives

1,3-Oxazole chemicals are a unique class of five-membered monocyclic heteroarenes, containing a nitrogen atom and an oxygen. These alkaloids have attracted extensive attention from medicinal chemists and pharmacologists owing to their diverse arrays of chemical structures and biological activities, and a series of 1,3-oxazole derivatives has been developed into therapeutic agents (e.g., almoxatone, befloxatone, cabotegravir, delpazolid, fenpipalone, haloxazolam, inavolisib). A growing amount of evidence indicates that marine organisms are one of important sources of 1,3-oxazole-containing alkaloids. To improve our knowledge regarding these marine-derived substances, as many as 285 compounds are summarized in this review, which, for the first time, highlights their sources, structural features and biological properties, as well as their biosynthesis and chemical synthesis. Perspective for the future discovery of new 1,3-oxazole compounds from marine organisms is also provided.

scholarly journals Uncovering Novel Peptide Chemistry from Bacterial Natural Products

2021 ◽  
Vol 75 (6) ◽  
pp. 543-547
Author(s):  
Florian Hubrich ◽  
Alessandro Lotti ◽  
Thomas A. Scott ◽  
Jörn Piel
Keyword(s):  
Natural Products ◽  
Bioactive Peptides ◽  
Biological Activities ◽  
Biological Properties ◽  
Post Translational Modifications ◽  
Peptide Chemistry ◽  
Chemical Structures ◽  
Therapeutic Value ◽  
Modified Peptides ◽  
Unique Chemical

Nature has evolved a remarkable array of biosynthetic enzymes that install diverse chemistries into natural products (NPs), bestowing them with a range of important biological properties that are of considerable therapeutic value. This is epitomized by the ribosomally synthesized and post-translationally modified peptides (RiPPs), a class of peptide natural products that undergo extensive post-translational modifications to produce structurally diverse bioactive peptides. In this review, we provide an overview of our research into the proteusin RiPP family, describing characterized members and the maturation enzymes responsible for their unique chemical structures and biological activities. The diverse enzymology identified in the first two proteusin pathways highlights the enormous potential of the RiPP class for new lead structures and novel pharmacophore-installing maturases as biocatalytic tools for drug discovery efforts.

scholarly journals Marine Natural Products: A Source of Novel Anticancer Drugs

Marine Drugs ◽  
2019 ◽  
Vol 17 (9) ◽  
pp. 491 ◽  
Author(s):  
Shaden A. M. Khalifa ◽  
Nizar Elias ◽  
Mohamed A. Farag ◽  
Lei Chen ◽  
Aamer Saeed ◽  
...  
Keyword(s):  
Natural Products ◽  
Anticancer Drugs ◽  
Marine Natural Products ◽  
Molecular Mechanisms ◽  
Biological Effects ◽  
Marine Organisms ◽  
New Drugs ◽  
Bioactive Metabolites ◽  
Chemical Structures ◽  
The Impact

Cancer remains one of the most lethal diseases worldwide. There is an urgent need for new drugs with novel modes of action and thus considerable research has been conducted for new anticancer drugs from natural sources, especially plants, microbes and marine organisms. Marine populations represent reservoirs of novel bioactive metabolites with diverse groups of chemical structures. This review highlights the impact of marine organisms, with particular emphasis on marine plants, algae, bacteria, actinomycetes, fungi, sponges and soft corals. Anti-cancer effects of marine natural products in in vitro and in vivo studies were first introduced; their activity in the prevention of tumor formation and the related compound-induced apoptosis and cytotoxicities were tackled. The possible molecular mechanisms behind the biological effects are also presented. The review highlights the diversity of marine organisms, novel chemical structures, and chemical property space. Finally, therapeutic strategies and the present use of marine-derived components, its future direction and limitations are discussed.

Contemporary advancements of semi-synthesis of bioactive terpenoids and steroids

2021 ◽  
Author(s):  
Zhuo Wang ◽  
Hui Chunngai
Keyword(s):  
Natural Products ◽  
Functional Groups ◽  
Biological Properties ◽  
Chemical Structures ◽  
Intrinsic Complexity ◽  
Structural Skeleton

Many natural products have intriguing biological properties that arise from their fascinating chemical structures. However, the intrinsic complexity of the structural skeleton and the reactive functional groups on natural products...

scholarly journals Anti-cancer agents from natural sources: A review

2021 ◽  
Vol 3 (4) ◽  
pp. 38-46
Author(s):  
A.G. Nerkar ◽  
G.S. Chakraborthy ◽  
R. D. Ukirde
Keyword(s):  
Clinical Trials ◽  
Natural Products ◽  
Total Synthesis ◽  
Fruits And Vegetables ◽  
Dominant Role ◽  
Modern Medicine ◽  
Chemotherapeutic Agents ◽  
Successful Development ◽  
Anti Cancer ◽  
Willow Bark

The natural products have played a dominant role in the treatment of human ailments. The discovery of penicillin has changed the scenario of modern medicine. With the ancient use of quinine for malaria, willow bark for pain and several other natural products used as medicines in ancient system of medicine such as Ayurveda and traditional China, the discovery of the medicines for the allopathic use from natural source has gained substantial attention. The ancient system of Ayurveda describes the used of many plants extracts being used for the treatment of cancer. Prevailing epidemiological factors have also described the use of the msediterranean diet and inclusion of fruits and vegetables to score low as risk factor for the cancers. Further the several discoveries have led to the transformation of the active constituents of the natural products from the dietary sources for the chemoprevention. Substantial trials in the development of the drugs from the marine and microbial origin have been fruitful and positive to develop safe and efficacious drugs. However, the success being very low due to unavailability of natural products in large gram amounts required for the clinical trials. The total synthesis of m any natural products from marine origin has also emerged to solve this issue and led to successful development of 4 marine drugs as anti-cancer agents. This overview reviews the anticancer drugs from the natural origin as the chemo preventive and chemotherapeutic agents. Wherever possible the details of the clinical trials have been discussed along with uses and mechanism of action.

Drug Leads Derived from Japanese Marine Organisms

2020 ◽  
Vol 28 (1) ◽  
pp. 196-210 ◽  
Author(s):  
Daisuke Uemura ◽  
Yoshinori Kawazoe ◽  
Toshiyasu Inuzuka ◽  
Yuki Itakura ◽  
Chiari Kawamata ◽  
...  
Keyword(s):  
Natural Products ◽  
Biological Activities ◽  
Marine Organisms ◽  
Bioactive Molecules ◽  
Major Work ◽  
Halichondrin B ◽  
Chemical Structures ◽  
Biological Phenomena

: Many natural products with extraordinary chemical structures and brilliant biological activities have been obtained from marine organisms. We have investigated such fascinating bioactive molecules, exemplified by the potent marine toxin palytoxin and the antitumor molecule halichondrin B, which has been developed as the anticancer drug Halaven®, to explore novel frontiers in organic chemistry and bioscience. Working within the traditional discipline, we have sought to acquire a deeper understanding of biological phenomena. We introduce here our major work along with up-todate topics. We isolated yoshinone A from marine cyanobacteria and completed a gram-scale synthesis. Yoshinone A is a novel polyketide that inhibited the differentiation of 3T3-L1 cells into adipocytes without significant cytotoxicity. The detailed mechanisms of action will be elucidated via further experiments in vitro and in vivo. In this study, we explore the true producers of okadaic acid and halichondrin B by immunostaining of Halichondria okadai with an antibody that was prepared using these natural products as an antigen. We will analyze isolated symbionts and reveal biosynthetic pathways.

Computational Outlook of Marine Compounds as Anti-Cancer Representatives Targeting BCL-2 and Survivin

2019 ◽  
Vol 15 (3) ◽  
pp. 265-276
Author(s):  
Eram Shakeel ◽  
Rajnish Kumar ◽  
Neha Sharma ◽  
Salman Akhtar ◽  
Mohd. Kalim Ahmad Khan ◽  
...  
Keyword(s):  
Virtual Screening ◽  
Cancer Cells ◽  
Anticancer Therapy ◽  
Marine Organisms ◽  
New Wave ◽  
Chemical Structures ◽  
Anti Cancer ◽  
Marine Compounds ◽  
Clinical Experiment ◽  
Virtual Screening Approach

<P>Introduction: The regulation of apoptosis via compounds originated from marine organisms signifies a new wave in the field of drug discovery. Marine organisms produce potent compounds as they hold the phenomenal diversity in chemical structures. The main focus of drug development is anticancer therapy. Methods: Expertise on manifold activities of compounds helps in the discovery of their derivatives for preclinical and clinical experiment that promotes improved activity of compounds for cancer patients. Results: These marine derived compounds stimulate apoptosis in cancer cells by targeting Bcl-2 and Survivin, highlighting the fact that instantaneous targeting of these proteins by novel derivatives results in efficacious and selective killing of cancer cells. Conclusion: Our study reports the identification of Aplysin and Haterumaimide J as Bcl-2 inhibitors and Cortistatin A as an inhibitor of survivin protein, from a sequential virtual screening approach.</P>

Sign in / Sign up

Export Citation Format

Share Document