Cardiac Glycosides: Emerging Anti-Cancer Agents and Mechanisms
cardiac glycosides as anti-cancer agent
Journal name: World Journal of Pharmaceutical Research
Original article title: A review on
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Subtitle: pharmacosomes as a novel vesicular drug delivery system
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Jitendra L Patel, Praful D Bharadia
World Journal of Pharmaceutical Research:
(An ISO 9001:2015 Certified International Journal)
Full text available for: A review on
Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research
Copyright (license): WJPR: All rights reserved
Summary of article contents:
Introduction
Cardiac glycosides (CGs) are naturally occurring compounds primarily recognized for their role in treating heart conditions such as congestive heart failure and cardiac arrhythmias. Recent research has identified these compounds as potential anticancer agents. Their primary mechanism of action involves the inhibition of the Na⁺/K⁺-ATPase pump, leading to a cascade of intracellular signaling events that can promote apoptosis, autophagy, and immune responses. This review aims to explore the anticancer properties of cardiac glycosides, particularly their mechanisms and implications for immunotherapy.
Role of Na⁺/K⁺-ATPase in Anticancer Activity
Central to the anticancer efficacy of cardiac glycosides is their interaction with the Na⁺/K⁺-ATPase pump. By binding to the alpha subunit of this pump, CGs increase intracellular sodium levels while decreasing potassium levels. This alteration causes a rise in intracellular calcium concentration due to enhanced sodium/calcium exchange in mitochondria. The resulting effects on cellular homeostasis may activate various signaling pathways, promoting cell death. Notably, specific cancer types, like non-small cell lung cancer, exhibit overexpression of the α-1 subunit, making this mechanism particularly relevant for targeted therapies.
Mechanisms of Cell Death Induced by Cardiac Glycosides
Cardiac glycosides can induce several forms of cell death, including apoptosis, autophagic cell death, and immunogenic cell death, depending on the type of cancer cells being targeted. For instance, the cardenolide UNBS1450 has shown efficacy in triggering cell death in human leukemic cells and inducing either apoptosis or necroptosis in neuroblastoma cells. Such cell-specific effects highlight the importance of understanding the cellular context in which cardiac glycosides operate, as different cancer cell types may respond variably to treatment.
Epidemiological Insights on Cancer Risk
While cardiac glycosides have shown promise as anticancer agents, epidemiological studies have produced mixed results regarding their relationship with cancer risk. Certain studies have suggested that their use may be correlated with increased risks of estrogen-sensitive tumors, such as breast and ovarian cancers. Thus, the overall impact of cardiac glycosides on cancer risk necessitates careful evaluation, as the benefits observed in clinical applications must be weighed against potential risks associated with their use.
Conclusion
In conclusion, cardiac glycosides represent a unique class of compounds with significant potential as anticancer agents, primarily through their action on the Na⁺/K⁺-ATPase pump. They have been shown to induce multiple forms of cell death in cancer cells, making them promising candidates for further research and clinical evaluation. However, while their anticancer properties are compelling, ongoing investigations are needed to clarify their implications for cancer risk and to optimize their therapeutic application in oncological settings.
FAQ section (important questions/answers):
What are cardiac glycosides and their primary use?
Cardiac glycosides are naturally occurring compounds primarily used in treating congestive heart failure and cardiac arrhythmias due to their cardiotonic activity.
How do cardiac glycosides function as anticancer agents?
Cardiac glycosides target the Na+/K+-ATPase pump, disrupting ion balance, activating intracellular signaling pathways, and potentially inducing apoptosis and other forms of cell death in cancer cells.
What are some sources of cardiac glycosides?
Plants like Digitalis purpurea and Strophanthus gratus are common sources, along with amphibians and mammals, providing compounds like digoxin and ouabain.
What types of cell death can cardiac glycosides induce?
Cardiac glycosides can induce various cell death methods, including apoptosis, necroptosis, and autophagy, depending on the properties of the target cells.
Are there risks associated with using cardiac glycosides?
Some studies have indicated that cardiac glycosides may be linked to a higher risk of estrogen-sensitive tumors, such as breast and ovarian cancers.
What is the significance of ongoing research on cardiac glycosides?
Research on cardiac glycosides is crucial as it may reveal new strategies for cancer treatment, especially given their potential effects on immune responses and tumor-specific actions.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Cardiac Glycosides: Emerging Anti-Cancer Agents and Mechanisms”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Cancer:
Cancer is a critical health concern, characterized by uncontrolled cell growth and differentiation. The text discusses the increasing incidence of cancer globally, emphasizing the urgent need for novel anticancer therapies. It highlights research into cardiac glycosides, traditionally used for heart conditions, revealing their potential as anticancer agents targeting specific cellular mechanisms.
2) Death:
Death is a significant aspect in cancer discussions as it represents the ultimate outcome of advanced and untreated malignancies. The text mentions different cell death mechanisms induced by cardiac glycosides, including apoptosis and necroptosis, which are crucial for assessing the efficacy of potential cancer treatments and improving patient survival.
3) Activity:
Activity refers to the biological actions and effects of compounds, particularly in the context of medicinal properties. The text outlines the various activities of cardiac glycosides, such as their role in modulating sodium-potassium ATPase and activating signaling pathways that lead to cancer cell death, underscoring their therapeutic potential.
4) Drug:
Drugs are crucial for treating various health conditions. The text discusses cardiac glycosides as drugs with established safety profiles, repurposed for cancer treatment. This shift highlights the importance of using existing drugs in new therapeutic contexts to expedite the availability of effective cancer treatments.
5) Disease:
Diseases encompass a range of health issues impacting individuals. The review highlights both cancer and cardiac conditions, discussing how cardiac glycosides, traditionally associated with heart disease treatment, are being explored for their anticancer properties. This reflects the evolving landscape of drug applications across various diseases.
6) Pharmacology:
Pharmacology is the study of drugs and their effects on living organisms. This text involves pharmacological research related to cardiac glycosides, exploring their mechanisms of action against cancer. The intersection of pharmacology and oncology in this study emphasizes the importance of understanding drug interactions and effects in cancer treatment.
7) Bengal (Bemgal):
Bengal refers to a region in India where the research is conducted. The involvement of researchers from Bharat Technology in West Bengal indicates regional contributions to global health issues, like cancer. Their work represents local efforts to tackle widespread health problems through innovative pharmacological research.
8) India:
India serves as the geographical context of the research. Its diverse population presents varying cancer types and treatment responses, making it an important site for clinical studies. The review reflects India's rising role in global biomedical research, particularly in the discovery and evaluation of therapeutic agents.
9) Nava (Navan):
Nava, in the context, refers to a part of a name in the references provided, likely related to a researcher or author. Recognizing contributors in scientific literature emphasizes the collaborative nature of research and the importance of acknowledging contributions across disciplines and studies in advancing medical knowledge.
10) Accumulation (Accumulating, Accumulate):
Accumulation refers to the build-up of substances in biological systems. The text relates to how cardiac glycosides can induce an accumulation of calcium within cells, triggering pathways that lead to cancer cell death. Understanding accumulation processes is essential for developing effective therapeutic strategies in cancer treatment.
11) Substance:
A substance is a particular type of matter with distinct properties. The review discusses cardiac glycosides as substances with noted cardiotonic and potential anticancer effects. Emphasizing specific substances helps in understanding how particular compounds can influence biological pathways and lead to therapeutic outcomes.
12) Account:
Account refers to documentation or reporting on a subject. The historical account by William Withering on the uses of foxglove in medicine underscores the long-standing knowledge of plant-based substances in pharmacology. Such accounts are vital in understanding the evolution of drug use and broadening therapeutic applications.
13) Sugar:
Sugar refers to carbohydrates (saccharides) that are part of the structure of cardiac glycosides. The presence of a sugar moiety is essential for the biological activity of these compounds, linking their pharmacological properties to their chemical structure and highlighting the intricate relationship between structure and function in drug action.
14) Study (Studying):
A study represents systematic investigation or research to establish facts or principles. The review focuses on the study of cardiac glycosides' anticancer effects, calling attention to the importance of conducting rigorous scientific studies to clarify potential benefits, mechanisms of action, and clinical applicability for cancer treatment.
Other Science Concepts:
Discover the significance of concepts within the article: ‘Cardiac Glycosides: Emerging Anti-Cancer Agents and Mechanisms’. Further sources in the context of Science might help you critically compare this page with similair documents:
Clinical trial, Epidemiological studies, Mechanism of action, Immunotherapy, Cardiac glycoside, Cell death, Anti-cancer agent.