Anticancer Effects of Seaweed-Derived Bioactive Compounds

Cancer remains a major life-threatening disease worldwide. The development of anticancer drugs using natural products obtained from marine organisms has been proposed as an alternative approach. Seaweeds are the mainstay of marine ecosystems; therefore, they are highly enriched with diverse bioactive compounds. In the past decade, a vast number of natural compounds, such as polysaccharides, polyphenols, carotenoids, and terpenoids, have been isolated from seaweeds. Seaweeds have bioactive compounds that show cytotoxicity in various cancer cell lines. These compounds prevent tumor growth by inducing apoptotic cell death and arrest growth by interfering with different kinases and cell cycle pathways. This review discussed the anticancer properties of various bioactive compounds isolated from different types of seaweeds and their therapeutic potential against cancers.

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Anticancer Effects of the Corchorus olitorius Aqueous Extract and Its Bioactive Compounds on Human Cancer Cell Lines

Molecules ◽

10.3390/molecules26196033 ◽

2021 ◽

Vol 26 (19) ◽

pp. 6033

Author(s):

John Paul Sese Tosoc ◽

Olga Macas Nuñeza ◽

Thangirala Sudha ◽

Noureldien H. E. Darwish ◽

Shaker A. Mousa

Keyword(s):

Cancer Cells ◽

Cell Lines ◽

Cancer Cell ◽

Bioactive Compounds ◽

Aqueous Extract ◽

Human Cancer ◽

Corchorus Olitorius ◽

Antitumor Activities ◽

Anticancer Properties ◽

Anticancer Effects

Corchorus olitorius is a common, leafy vegetable locally known as “Saluyot” in the Philippines. Several studies have reported on its various pharmacological properties, such as antioxidant, anti-inflammatory, analgesic, and anticancer properties. However, little is known about its effects on angiogenesis. This study aimed to evaluate the anticancer properties, such as the antiproliferative, anti-angiogenic, and antitumor activities, of the C. olitorius aqueous extract (CO) and its bioactive compounds, chlorogenic acid (CGA) and isoquercetin (IQ), against human melanoma (A-375), gastric cancer (AGS), and pancreatic cancer (SUIT-2), using in vitro and in ovo biological assays. The detection and quantification of CGA and IQ in CO were achieved using LC-MS/MS analysis. The antiproliferative, anti-angiogenic, and antitumor activities of CO, CGA, and IQ against A-375, AGS, and SUIT-2 cancer cell lines were evaluated using MTT and CAM assays. CGA and IQ were confirmed to be present in CO. CO, CGA, and IQ significantly inhibited the proliferation of A-375, AGS, and SUIT-2 cancer cells in a dose-dependent manner after 48 h of treatment. Tumor angiogenesis (hemoglobin levels) of A-375 and AGS tumors was significantly inhibited by CO, CGA, IQ, and a CGA–IQ combination. The growth of implanted A-375 and AGS tumors was significantly reduced by CO, CGA, IQ, and a CGA–IQ combination, as measured in tumor weight. Our investigation provides new evidence to show that CO has promising anticancer effects on various types of human cancer cells. CO and its compounds are potential nutraceutical products that could be used for cancer treatment.

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Bioactive Compounds: Natural Defense Against Cancer?

Biomolecules ◽

10.3390/biom9120758 ◽

2019 ◽

Vol 9 (12) ◽

pp. 758 ◽

Cited By ~ 13

Author(s):

Shonia Subramaniam ◽

Kanga Rani Selvaduray ◽

Ammu Kutty Radhakrishnan

Keyword(s):

Side Effects ◽

Bioactive Compounds ◽

Molecular Mechanisms ◽

Chemotherapeutic Agents ◽

Anticancer Activities ◽

Natural Plant ◽

Anticancer Properties ◽

Natural Defense ◽

Anticancer Effects ◽

Bioactive Agents

Cancer is a devastating disease that has claimed many lives. Natural bioactive agents from plants are gaining wide attention for their anticancer activities. Several studies have found that natural plant-based bioactive compounds can enhance the efficacy of chemotherapy, and in some cases ameliorate some of the side-effects of drugs used as chemotherapeutic agents. In this paper, we have reviewed the literature on the anticancer effects of four plant-based bioactive compounds namely, curcumin, myricetin, geraniin and tocotrienols (T3) to provide an overview on some of the key findings that are related to this effect. The molecular mechanisms through which the active compounds may exert their anticancer properties in cell and animal-based studies also discussed.

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An overview of the mechanisms of marine fungi-derived antiinflammatory and anti-tumor agents and their novel role in drug targeting

Current Pharmaceutical Design ◽

10.2174/1381612826666200728142244 ◽

2020 ◽

Vol 26 ◽

Cited By ~ 1

Author(s):

Syed Shams ul Hassan ◽

Muhammad Ishaq ◽

Wei-dong Zhang ◽

Hui-Zi Jin

Keyword(s):

Secondary Metabolites ◽

Bioactive Compounds ◽

Marine Fungi ◽

Therapeutic Potential ◽

The Body ◽

Bioactive Molecules ◽

Human Diseases ◽

Diverse Range ◽

Life Threatening ◽

Main Component

: Marine fungi with their successful pharmacological effects were considered to be the treasure of ocean medicines concerning the striking ability of their secondary metabolites. Literature over literature has been published on fungi derived bioactive molecules to probe its therapeutic potential. Marine fungi have an implicit to cede future medicines against life-threatening diseases, such as cancer and several emerging inflammations. The biological actions of many marine fungi-derived secondary metabolites are still unlocked, for an assorted number of bioactive compounds by which they interact with human diseases are discussed here with comprehensive diagrams. This knowledge is one of the main track to be established specifically for the successful transformation of bioactive compounds to medicines. Marine fungi produce a diverse range of biochemical substances with precious carbon scaffolds, which are the main component interplaying with human diseases at distinctive spots. Specific diseases having a flair to fight at distinctive targets within the body can lead to a new trend of raising the chances of developing targeted drugs.

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From Ocean to Bedside: the Therapeutic Potential of Molluscan Hemocyanins

Current Medicinal Chemistry ◽

10.2174/0929867324666170502124227 ◽

2018 ◽

Vol 25 (20) ◽

pp. 2292-2303 ◽

Cited By ~ 4

Author(s):

Negar Talaei Zanjani ◽

Monica Miranda Saksena ◽

Fariba Dehghani ◽

Anthony L. Cunningham

Keyword(s):

Antiviral Activity ◽

Clinical Efficacy ◽

Mechanism Of Action ◽

Therapeutic Agent ◽

Marine Invertebrates ◽

Therapeutic Potential ◽

Biological Functions ◽

Anticancer Properties ◽

Mechanistic Understanding

Hemocyanins are large and versatile glycoproteins performing various immunological and biological functions in many marine invertebrates including arthropods and molluscs. This review discusses the various pharmacological applications of mollusc hemocyanin such as antiviral activity, immunostimulatory and anticancer properties that have been reported in the literature between the years 2000 and 2016. Emphasis is placed on a better mechanistic understanding of hemocyanin as a therapeutic agent. Elucidation of the mechanism of action is essential to improve the clinical efficacy and for a better understanding of some endogenous immunological functions of this complex glycoprotein.

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Phytosomal Curcumin Elicits Anti-tumor Properties Through Suppression of Angiogenesis, Cell Proliferation and Induction of Oxidative Stress in Colorectal Cancer

Current Pharmaceutical Design ◽

10.2174/1381612825666190110145151 ◽

2019 ◽

Vol 24 (39) ◽

pp. 4626-4638 ◽

Cited By ~ 13

Author(s):

Reyhaneh Moradi-Marjaneh ◽

Seyed M. Hassanian ◽

Farzad Rahmani ◽

Seyed H. Aghaee-Bakhtiari ◽

Amir Avan ◽

...

Keyword(s):

Oxidative Stress ◽

Colorectal Cancer ◽

Therapeutic Potential ◽

Vegf Signaling ◽

Anticancer Effects ◽

Inhibition Of Angiogenesis ◽

Underlying Mechanisms ◽

Apoptotic Activity

Background: Colorectal cancer (CRC) is one of the most common causes of cancer-associated mortality in the world. Anti-tumor effect of curcumin has been shown in different cancers; however, the therapeutic potential of novel phytosomal curcumin, as well as the underlying molecular mechanism in CRC, has not yet been explored. Methods: The anti-proliferative, anti-migratory and apoptotic activity of phytosomal curcumin in CT26 cells was assessed by MTT assay, wound healing assay and Flow cytometry, respectively. Phytosomal curcumin was also tested for its in-vivo activity in a xenograft mouse model of CRC. In addition, oxidant/antioxidant activity was examined by DCFH-DA assay in vitro, measurement of malondialdehyde (MDA), Thiol and superoxidedismutase (SOD) and catalase (CAT) activity and also evaluation of expression levels of Nrf2 and GCLM by qRT-PCR in tumor tissues. In addition, the effect of phytosomal curcumin on angiogenesis was assessed by the measurement of VEGF-A and VEGFR-1 and VEGF signaling regulatory microRNAs (miRNAs) in tumor tissue. Results: Phytosomal curcumin exerts anti-proliferative, anti-migratory and apoptotic activity in-vitro. It also decreases tumor growth and augmented 5-fluorouracil (5-FU) anti-tumor effect in-vivo. In addition, our data showed that induction of oxidative stress and inhibition of angiogenesis through modulation of VEGF signaling regulatory miRNAs might be underlying mechanisms by which phytosomal curcumin exerted its antitumor effect. Conclusion: Our data confirmed this notion that phytosomal curcumin administrates anticancer effects and can be used as a complementary treatment in clinical settings.

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Medicinal Plants and Bioactive Compounds for Diabetes Management: Important Advances for Drug Discovery

Current Pharmaceutical Design ◽

10.2174/1381612826666200928160357 ◽

2020 ◽

Vol 26 ◽

Author(s):

Kondeti Ramudu Shanmugam ◽

Bhasha Shanmugam ◽

Gangigunta Venkatasubbaiah ◽

Sahukari Ravi ◽

Kesireddy Sathyavelu Reddy

Keyword(s):

Herbal Medicine ◽

Medicinal Plants ◽

Bioactive Compounds ◽

Diabetes Management ◽

Therapeutic Potential ◽

Public Health Problem ◽

In Vivo Studies ◽

Major Public Health Problem

Background : Diabetes is a major public health problem in the world. It affects each and every part of the human body and also leads to organ failure. Hence, great progress made in the field of herbal medicine and diabetic research. Objectives: Our review will focus on the effect of bioactive compounds of medicinal plants which are used to treat diabetes in India and other countries. Methods: Information regarding diabetes, oxidative stress, medicinal plants and bioactive compounds were collected from different search engines like Science direct, Springer, Wiley online library, Taylor and francis, Bentham Science, Pubmed and Google scholar. Data was analyzed and summarized in the review. Results and Conclusion: Anti-diabetic drugs that are in use have many side effects on vital organs like heart, liver, kidney and brain. There is an urgent need for alternative medicine to treat diabetes and their disorders. In India and other countries herbal medicine was used to treat diabetes. Many herbal plants have antidiabetic effects. The plants like ginger, phyllanthus, curcumin, aswagandha, aloe, hibiscus and curcuma showed significant anti-hyperglycemic activities in experimental models and humans. The bioactive compounds like Allicin, azadirachtin, cajanin, curcumin, querceitin, gingerol possesses anti-diabetic, antioxidant and other pharmacological properties. This review focuses on the role of bioactive compounds of medicinal plants in prevention and management of diabetes. Conclusion: Moreover, our review suggests that bioactive compounds have the potential therapeutic potential against diabetes. However, further in vitro and in vivo studies are needed to validate these findings.

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Lung ultrasound in blunt chest trauma: A clinical review

Ultrasound ◽

10.1177/1742271x21994604 ◽

2021 ◽

pp. 1742271X2199460

Author(s):

Serena Rovida ◽

Daniele Orso ◽

Salman Naeem ◽

Luigi Vetrugno ◽

Giovanni Volpicelli

Keyword(s):

Blunt Chest Trauma ◽

Chest Trauma ◽

Lung Ultrasound ◽

Lung Parenchyma ◽

Trauma Patients ◽

Minor Trauma ◽

Major Life ◽

Diagnostic Modality ◽

Life Threatening ◽

Sternal Fractures

Introduction Bedside lung sonography is recognized as a reliable diagnostic modality in trauma settings due to its ability to detect alterations both in lung parenchyma and in pleural cavities. In severe blunt chest trauma, lung ultrasound can identify promptly life-threatening conditions which may need direct intervention, whereas in minor trauma, lung ultrasound contributes to detection of acute pathologies which are often initially radio-occult and helps in the selection of those patients that might need further investigation. Topic Description We did a literature search on databases EMBASE, PubMed, SCOPUS and Google Scholar using the terms ‘trauma’, ‘lung contusion’, ‘pneumothorax’, ‘hemothorax’ and ‘lung ultrasound’. The latest articles were reviewed and this article was written using the most current and validated information. Discussion Lung ultrasound is quite accurate in diagnosing pneumothorax by using a combination of four sonographic signs; absence of lung sliding, B-lines, lung pulse and presence of lung point. It provides a rapid diagnosis in hemodynamically unstable patients. Lung contusions and hemothorax can be diagnosed and assessed with lung ultrasound. Ultrasound is also very useful for evaluating rib and sternal fractures and for imaging the pericardium for effusion and tamponade. Conclusion Bedside lung ultrasound can lead to rapid and accurate diagnosis of major life-threatening pathologies in blunt chest trauma patients.

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Aloe Vera-Mediated Te Nanostructures: Highly Potent Antibacterial Agents and Moderated Anticancer Effects

Nanomaterials ◽

10.3390/nano11020514 ◽

2021 ◽

Vol 11 (2) ◽

pp. 514

Author(s):

David Medina-Cruz ◽

Ada Vernet-Crua ◽

Ebrahim Mostafavi ◽

María Ujué González ◽

Lidia Martínez ◽

...

Keyword(s):

Biomedical Applications ◽

Aqueous Media ◽

Aloe Vera ◽

Multidrug Resistant ◽

Dermal Fibroblasts ◽

Anticancer Properties ◽

Green Approach ◽

Anticancer Effects ◽

Synthesis Of Nanomaterials ◽

By Products

Cancer and antimicrobial resistance to antibiotics are two of the most worrying healthcare concerns that humanity is facing nowadays. Some of the most promising solutions for these healthcare problems may come from nanomedicine. While the traditional synthesis of nanomaterials is often accompanied by drawbacks such as high cost or the production of toxic by-products, green nanotechnology has been presented as a suitable solution to overcome such challenges. In this work, an approach for the synthesis of tellurium (Te) nanostructures in aqueous media has been developed using aloe vera (AV) extracts as a unique reducing and capping agent. Te-based nanoparticles (AV-TeNPs), with sizes between 20 and 60 nm, were characterized in terms of physicochemical properties and tested for potential biomedical applications. A significant decay in bacterial growth after 24 h was achieved for both Methicillin-resistant Staphylococcus aureus and multidrug-resistant Escherichia coli at a relative low concentration of 5 µg/mL, while there was no cytotoxicity towards human dermal fibroblasts after 3 days of treatment. AV-TeNPs also showed anticancer properties up to 72 h within a range of concentrations between 5 and 100 µg/mL. Consequently, here, we present a novel and green approach to produce Te-based nanostructures with potential biomedical applications, especially for antibacterial and anticancer applications.

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Radiographic Reread Protocols to Identify Clinically Relevant Errors in Initial Trauma Evaluations

The American Surgeon ◽

10.1177/0003134821998676 ◽

2021 ◽

pp. 000313482199867

Author(s):

Madison E. Morgan ◽

Catherine T. Brown ◽

Tawnya M. Vernon ◽

Brian W. Gross ◽

Daniel Wu ◽

...

Keyword(s):

Trauma Patients ◽

Radiological Imaging ◽

Major Life ◽

Temporal Bone Fracture ◽

Level Ii ◽

Activation Level ◽

Life Threatening ◽

Trauma Activation ◽

Original Interpretation ◽

Missed Diagnoses

Introduction Diagnostic radiology interpretive errors in trauma patients can lead to missed diagnoses, compromising patient care. Due to this, our level II trauma center implemented a reread protocol of all radiographic imaging within 24 hours on our highest trauma activation level (Code T). We sought to determine the efficacy of this reread protocol in identifying missed diagnoses in Code T patients. We hypothesized that a few, but clinically relevant errors, would be identified upon reread. Methods All radiographic study findings (initial read and reread) performed for Code T admissions from July 2015 to May 2016 were queried. The reviewed radiological imaging was given one of four designations: agree with interpretation, minor (non-life threatening) nonclinically relevant error(s)—addendum/correction required or clinically relevant error(s) (major [life threatening] and minor)—addendum/correction required, and trauma surgeon notified. The results were compiled, and the number of each type of error was calculated. Results Of the 752 radiological imaging studies reviewed on the 121 Code T patients during this period, 3 (0.40%) contained minor clinically relevant errors, 11 (1.46%) contained errors that were not clinically relevant, and 738 (98.1%) agreed with the original interpretation. The three clinically relevant errors included a right mandibular fracture found on X-ray and a temporal bone fracture that crossed the clivus and bilateral rib fractures found on computerized tomography. Discussion Clinically relevant errors, although minimal, were discovered during rereads for Code T patients. Although the clinical errors were significant, none affected patient outcomes. We propose that the implementation of reread protocols should be based upon institution-specific practices.

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The Anticancer Effects of Flavonoids through miRNAs Modulations in Triple-Negative Breast Cancer

Nutrients ◽

10.3390/nu13041212 ◽

2021 ◽

Vol 13 (4) ◽

pp. 1212

Author(s):

Getinet M. Adinew ◽

Equar Taka ◽

Patricia Mendonca ◽

Samia S. Messeha ◽

Karam F. A. Soliman

Keyword(s):

Breast Cancer ◽

Cell Cycle ◽

Cancer Progression ◽

Triple Negative Breast Cancer ◽

Triple Negative ◽

Therapeutic Potential ◽

Biological Activities ◽

Therapeutic Option ◽

Mesenchymal Transition ◽

Anticancer Effects

Triple- negative breast cancer (TNBC) incidence rate has regularly risen over the last decades and is expected to increase in the future. Finding novel treatment options with minimum or no toxicity is of great importance in treating or preventing TNBC. Flavonoids are new attractive molecules that might fulfill this promising therapeutic option. Flavonoids have shown many biological activities, including antioxidant, anti-inflammatory, and anticancer effects. In addition to their anticancer effects by arresting the cell cycle, inducing apoptosis, and suppressing cancer cell proliferation, flavonoids can modulate non-coding microRNAs (miRNAs) function. Several preclinical and epidemiological studies indicate the possible therapeutic potential of these compounds. Flavonoids display a unique ability to change miRNAs’ levels via different mechanisms, either by suppressing oncogenic miRNAs or activating oncosuppressor miRNAs or affecting transcriptional, epigenetic miRNA processing in TNBC. Flavonoids are not only involved in the regulation of miRNA-mediated cancer initiation, growth, proliferation, differentiation, invasion, metastasis, and epithelial-to-mesenchymal transition (EMT), but also control miRNAs-mediated biological processes that significantly impact TNBC, such as cell cycle, immune system, mitochondrial dysregulation, modulating signaling pathways, inflammation, and angiogenesis. In this review, we highlighted the role of miRNAs in TNBC cancer progression and the effect of flavonoids on miRNA regulation, emphasizing their anticipated role in the prevention and treatment of TNBC.

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